Publication

New!! (accepted)
4. Marcel Dossow, Daniel Klüh, Kentaro Umeki, Matthias Gaderer, Hartmut Spliethoff, Sebastian Fendt, Electrification of gasification-based Biomass-to-X processes - A Critical Review and in-depth Assessment, Energy and Environmental Science 17 (2024) 925-973. [link to the article (open access)]

3. Qing He, Qinghua Guo, Kentaro Umeki, Lu Ding, Fuchen Wang, Guangsuo Yu, Soot formation during biomass gasification: A critical review, Renewable and Sustainable Energy Reviews 139 (2021) 110710. [link to the article]

2. Hannu Suopajärvi, Kentaro Umeki, Elsayed Mousa, Ali Hedayati, Henrik Romar, Antti Kemppainen, Chuan Wang, Aekjuthon Phounglamcheik, Sari Tuomikoski, Nicklas Norberg, Alf Andefors, Marcus Öhman, Ulla Lassi, Timo Fabritius, Use of biomass in integrated steelmaking - Status quo, future needs and comparison to other low-CO2 steel production technologies, Applied Energy 213 (2018) 384-407. [link to the article]

1. Kentaro Umeki, Tomoaki Namioka, Kunio Yoshikawa, Utilization of biomass gasification and the methods to increase the syn-gas quality, Petrotech 34 (2010), 85-89. [In Japanese]

New (submitted)!!
69. Marina Corvo Alguacil, Kentaro Umeki, Sergejs Gaidukovs, Anda Barkāne, Shujie You, Roberts Joffe, The impact of thermal treatment parameters on the preservation of carbon fiber mechanical properties after reclamation, submitted

New (submitted)!!
68. Liangzhou Chen, Xuyao Qi, Kentaro Umeki, Effect of potassium on phenol decomposition as a model tar in biomass gasification: Reaction mechanism and kinetics, submitted

New (accepted)!!
67. Thamali R. Jayawickrama, Nils Erland L. Haugen, Kentaro Umeki, On the inaccuracies of point-particle approach for char conversion modeling, Fuel, accepted.

66.  Marcelo Dal Belo Takehara, Kentaro Umeki, Rikard Gebart, Investigation of oxygen-enriched biomass flames in a lab-scale entrained flow reactor, Fuel 366 (2024) 131343. [link to the article (open access)]

65. Zahra Ghasemi Monfared, J. Gunnar I. Hellström, Kentaro Umeki, The Impact of Discrete Element Method Parameters on Realistic Representation of Spherical Particles in a Packed Bed, Processes 12 (2024)183. [link to the article (open access)]

64. Sepideh G. Khasevani, Dariush Nikjoo, Cécile Chaxel, Kentaro Umeki, Shokat Sarmad, Jyri-Pekka Mikkola, Isabella Concina, Empowering adsorption and photocatalytic degradation of ciprofloxacin on BiOI composites: A materials-by-design investigation, ACS Omega 8 (2023) 44044-44056. [link to the article (open access)]

63. Thamali R. Jayawickrama, M. A. Chishty, Nils Erland L. Haugen, Matthaus U. Babler, Kentaro Umeki, The effects of Stefan flow on the flow surrounding two closely spaced particles, International Journal of Multiphase Flow 166 (2023) 104499. [link to the article (open access)]

62.  Marcelo Dal Belo Takehara, Muhammad Aqib Chishty, Kentaro Umeki, Rikard Gebart, Pulverized biomass flame under imposed acoustic oscillations: flame morphology and emission characteristics, Fuel Processing Technology, 238 (2022) 107484. [link to the article (open access)]

61. Thobias Kreitzberg, Aekjuthon Phounglamcheik, Nils Erland L. Haugen, Reinhold Kneer, Kentaro Umeki, A short cut method to predict particle size changes during char combustion and gasificaiton under regime II conditions, Combustion Science and Technology, 194 (2022) 272-291. [link to the article] [link to the authors' version (open access)]

60. Aekjuthon Phounglamcheik, Nils Johnson, Norbert Kienzl, Christoph Strasser, Kentaro Umeki, Self-heating of biochar during postproduction storage by O2 chemisorption at low temperatures, energies 15 (2022) 380 [link to the article (open access)].

59. Marcelo Dal Belo Takehara, Ángel David García Llamas; Muhammad Aqib Chishty, Kentaro Umeki, Rikard Gebart, Effect of acoustic perturbation on particle dispersion in a swirl-stabilized pulverized fuel burner: cold-flow conditions, Fuel Processing Technology 228 (2022) 107142 [link to the article (open access)].

58. Ángel David Garcia Llamas, Ning Guo, Tian Li, Rikard Gebart, Kentaro Umeki, Rapid change of particle velocity due to volatile gas release during biomass devolatilization, Combustion and Flame 238 (2022) 111898 [link to the article (open access)].

57. Aekjuthon Phounglamcheik, Markus Bäckbo, Ryan Robinson, Kentaro Umeki, The significance of intraparticle and interparticle diffusion during CO2 gasification of biomass char in a packed bed, Fuel 310 (2022) 122302 [link to the article (open access)].

56. Junqin Yu, Weidong Xia, Chinnathan Areeprasertc, Lu Ding, Kentaro Umeki, Guangsuo Yu, Catalytic effects of inherent AAEM on char gasification: A mechanism study using in-situ Raman, Energy, 238  part C (2022) 122074 [link to the article].

55. Aekjuthon Phounglamcheik, Ricardo Vila, Norbert Kienzl, Liang Wang, Ali Hedayati, Markus Broström, Kerstin Ramser, Klas Engvall, Øyvind Skreiberg, Kentaro Umeki, Gasification reactivity of char from high-ash biomass, ACS Omega 6  (2021) 34115–34128. [link to the article (open access)].

54. Stefan Pielsticker, Benjamin Gövert, Kentaro Umeki, Reinhold Kneer, Flash Pyrolysis Kinetics of Extracted Lignocellulosic Biomass Components, Frontiers in Energy Research 9 (2021), 737011 [link to the article (open access)].

53. Oisik Das, Rhoda Afriyie Mensah, Gejo George, Lin Jiang, Qiang Xu, Rasoul Esmaeely Neisiany, Kentaro Umeki, Tomal Jose E, Aekjuthon Phounglamcheik, Mikael S. Hedenqvist, Ágoston Restas, Gabriel Sas, Michael Forsth, Filippo Berto, Flammability and mechanical properties of biochars made in different pyrolysis reactors, Biomass and Bioenergy 152 (2021) 106197. [link to the article (open access)]

52. Muhammad Aqib Chishty, Kentaro Umeki, Mikael Risberg, Anders Wingren, Rikard Gebart, Numerical simulation of a biomass cyclone gasifier: Effects of operating conditions on gasifier performance , Fuel Processing Technology 218 (2021)106861. [link to the article (open access)]

51. Thamali R. Jayawickrama, Nils Erland L. Haugen, Matthaus U. Babler, M. A. Chishty, Kentaro Umeki, The effect of Stefan flow on Nusselt number and drag coefficient of spherical particles in non-isothermal gas flow, International Journal of Multiphase Flow 140  (2021) 103650. [link to the article (open access)]

50. Matthias Kuba, Katharina Fürsatz, Daniel Janisch, Kouessan Aziaba, Damian Chlebda, Joanna Łojewska, Fredrik Forsberg Kentaro Umeki, Hermann Hofbauer, Surface characterisation of ash layered olivine from fluidized bed biomass gasification, Biomass Conversion and Biorefinery 11 (2021) 29-38. [link to the article (open access)]

49. Flabianus Hardi, Erik Furusjö, Kawnish Kirtania, Akihisa Imai, Kentaro Umeki, Kunio Yoshikawa, Catalytic hydrothermal liquefaction of biomass with K2CO3 for production of gasification feedstock, Biofuels 12 (2021) 149-160. [link to the article]

48. Anna Trubetskaya, Andrew J. Hunt, Vitaliy L. Budarin, Thomas M. Attard, Jens Kling, Gerrit R. Surup, Mehrdad Arshadi, Kentaro Umeki, Supercritical extraction and microwave activation of wood wastes for enhanced syngas production and generation of fullerene-like soot particles, Fuel Processing Technology 212 (2021) 106633 . [link to the article (open access)]

47. Christoph Schneider, Stella Walker, Aekjuthon Phounglamcheik, Kentaro Umeki, Thomas Kolb, Effect of calcium dispersion and graphitization during high-temperature pyrolysis of beech wood char on the gasification rate with CO2, Fuel 283 (2021) 118826. [link to the article (open access)]

46. Aekjuthon Phounglamcheik, Liang Wang, Henrik Romar, Norbert Kienzl, Markus Broström, Kerstin Ramser, Øyvind Skreiberg, Kentaro Umeki, The effects of pyrolysis conditions and feedstocks on the properties and gasification reactivity of charcoal from woodchips, Energy & Fuels 34 (2020) 8353–8365. [link to the article (open access)]

45. Ángel David García Llamas, Ning Guo, Tian Li, Rikrad Gebart, Terese Løvås, Kentaro Umeki, Morphology and volume fraction of biomass particles in a jet flow during devolatilization, Fuel, 278 (2020) 118241. [link to the article]

44. Ning Guo, Ángel David García Llamas, Tian Li, Kentaro Umeki, Rikrad Gebart, Terese Løvås, Computational fluid dynamic simulations of thermochemical conversion of pulverized biomass in a dilute flow using spheroidal approximation, Fuel, 271 (2020) 117495. [llink to the article (open access)]

43. Anna Trubetskaya, Michael T. Timko, Kentaro Umeki, Prediction of fast pyrolysis products yields using lignocellulosic compounds and ash contents, Applied Energy 257 (2020) 113897. [link to the article (open access)]

42. Albert Bach-Oller, Erik Furusjö, Kentaro Umeki, On the role of potassium as a tar and soot inhibitor in biomass gasification, Applied Energy 254 (2019) 113488. [link to the article]

41. Thamali R. Jayawickrama, Nils Erland L. Haugen, Matthaus U. Babler, M. A. Chishty, Kentaro Umeki, The effect of Stefan flow on the drag coefficient of spherical particles in a gas flow, International Journal of Multiphase Flow 117 (2019)130-137. [link to the article (open access)]

40. Anna Trubetskaya, Nabil Souihi, Kentaro Umeki, Categorization of tars from fast pyrolysis of pure lignocellulosic compounds at high temperature, Renewable Energy 141 (2019)  751-759. [link to the article]

39. Samira Lotfian, Hesham Ahmed, Kentaro Umeki, Caisa Samuelsson, Conversion characteristics of alternative reducing agents for the bath smelting processes in an oxidizing atmosphere, Journal of Sustainable Metallurgy 5 (2019) 230-239. [link to the article (open access)]

38. Aekjuthon Phounglamcheik, Tobias Wretborn, Kentaro Umeki,Increasing efficiency of charcoal production with bio-oil recycling, Energy & Fuels 32 (2018) 9650-9658. [link to the article]

37. Najibeh Toloue Farrokh, Hannu Suopajärvi; Olli  Mattila; Kentaro Umeki; Aekjuthon Phounglamcheik; Henrik Romar; Petri Sulasalmi; Timo Fabritius, Slow pyrolysis of by-product lignin from wood-based ethanol production- A detailed analysis of the produced chars, Energy 164 (2018) 112-123. [link to the article]

36. Flabianus Hardi, Akihisa Imai, Sarut Theppitak, Kawnish Kirtania, Erik Furusjö, Kentaro Umeki, Kunio Yoshikawa, Gasification of Char Derived from Catalytic Hydrothermal Liquefaction of Pine Sawdust under CO2 Atmosphere, Energy & Fuels 32 (2018) 5999-6007. [link to the article]

35. Anna Trubetskaya, Flemming Hofmann Larsen, Andrey Shchukarev, Kenny Ståhl, Kentaro Umeki, Potassium and soot interaction in fast biomass pyrolysis at high temperatures, Fuel 225 (2018) 89-94. [link to the article]

34. Anna Trubetskaya, Avery Brown, Geoffrey A. Tompsett, Michael T. Timko, Jens Kling, Markus Broström, Mogens Larsen Andersen, Kentaro Umeki, Characterization and reactivity of soot from fast pyrolysis of lignocellulosic compounds and monolignols, Applied Energy 212 (2018) 1489-1500. [link to the article]

33. Anna Strandberg, Per Holmgren, David R. Wagner, Roger Molinder, Henrik Wiinikka, Kentaro Umeki, Markus Broström, Effects of pyrolysis conditions and ash formation on gasification rates of biomass char, Energy & Fuels 31 (2017) 6507-6514. [link to the article]

32. Per Holmgren, David R. Wagner, Anna Strandberg, Roger Molinder, Henrik Wiinikka, Kentaro Umeki, Markus Broström, Size, shape and density changes of biomass powder particles during rapid devolatilization, Fuel 206 (2017) 342-351. [link to the article]

31. Kentaro Umeki, Gustav Häggström, Albert Bach-Oller, Kawnish Kirtania, Erik Furusjö, Reduction of tar and soot formation from entrained flow gasification of woody biomass by alkali impregnation, Energy & Fuels 31 (2017) 5104-5110. [link to the article]

30. Albert Bach-Oller, Kawnish Kirtania, Erik Furusjö, Kentaro Umeki, Co-gasification of black liquor and pyrolysis oil at high temperature: Part 2. Fuel conversion, Fuel 197 (2017) 240-247. [link to the article]

29. Albert Bach-Oller, Kawnish Kirtania, Erik Furusjö, Kentaro Umeki, Co-gasification of black liquor and pyrolysis oil at high temperature: Part 1. Fate of alkali elements, Fuel 202 (2017) 46-55. [link to the article]

28. Jim Andersson, Kentaro Umeki, Erik Furusjö, Kawnish Kirtania, Fredrik Weiland, Multi-scale reactor network simulation of an entrained flow biomass gasifier – model description and validation, Energy Technology 5 (2017) 1484-1494. [link to the article]

27. Lina N. Samuelsson, Kentaro Umeki, Matthaus U. Babler, Mass loss rates for wood chips at isothermal pyrolysis conditions: A comparison with low heating rate powder data, Fuel Processing Technology 158 (2017) 26-34. [link to the article]

26. Kawnish Kirtania, Joel Axelsson, Leonidas Matsakas, Paul Christakopoulos, Kentaro Umeki, Erik Furusjö, Kinetic study of catalytic gasification of wood char impregnated with different alkali salts, Energy 118 (2017) 1055-1065. [link to the article]

25. Kawnish Kirtania, Gustav Hägström, Markus Broström, Kentaro Umeki, Erik Furusjö, Co-gasification of crude glycerol and black liquor blends – char morphology and gasification kinetics, Energy Technology 5 (2017) 1272-1281. [link to the article]

24. Burak Göktepe, Kentaro Umeki, Ammar Hazim, T. Staffan Lundström, Rikard Gebart, Soot reduction in an entrained flow gasifier of biomass by active dispersion of fuel particles, Fuel 201 (2017) 111-117. [link to the article]

23. Ammar Hazim Saber, Burak Göktepe, Kentaro Umeki, T. Staffan Lundström, Rikard Gebart, Active fuel particles dispersion by synthetic jet in an entrained flow Gasifier: Cold flow, Powder Technology, 302 (2016) 275–282. [link to the article]

22. Sennai Mesfun, Jan-Olof Andersson, Kentaro Umeki, Andrea Toffolo, Integrated SNG production in a typical Nordic sawmill, Energies, 9 (2016) 333. [link to the article - open access]

21. Anna Trubetskaya, Peter Arendt Jensen, Anker Degn Jensen, Angel David Garcia Llamas, Kentaro Umeki, Diego Gardini, Jens Kling, Richard Bates, Peter Glarborg, Effect of several types of biomass fuels on the yield, nanostructure and reactivity of soot from fast pyrolysis at high temperatures, Applied Energy, 171 (2016) 468-482. [link to the article]

20. Anna Trubetskaya, Peter Arendt Jensen, Anker Degn Jensen, Angel David Garcia Llamas, Kentaro Umeki, Peter Glarborg, Effect of fast pyrolysis conditions on biomass solid residues at high temperatures, Fuel Processing Technology, 143 (2016) 118-129. [link to the article]

19. Burak Göktepe, Kentaro Umeki, Rikard Gebart, Does distance among biomass particles affect soot formation in an entrained flow gasification process?, Fuel Processing Technology, 141 (2016) 99-105. [link to the article]

18. Yasuto Tanaka, Sennai Mesfun, Kentaro Umeki, Andrea Toffolo, Yutaka Tamaura, Kunio Yoshikawa, Thermodynamic performance of a hybrid power generation system using biomass gasification and concentrated solar thermal processes, Applied Energy, 160 (2015) 664-672. [link to the article]

17. Bayu Prabowo, Herri Susanto, Kentaro Umeki, Mi Yan, Kunio Yoshikawa, Pilot scale autothermal gasification of coconut shell with CO2-O2 mixture, Frontiers in Energy, 9 (2015) 362-370. [link to the article]

16. Bayu Prabowo, Muhammad Aziz, Kentaro Umeki, Herri Susanto, Mi Yan, Kunio Yoshikawa, CO2-recycling biomass gasification system for highly efficient and carbon-negative power generation, Applied Energy, 158 (2015) 97-106. [link to the article]

15. Albert Bach-Oller, Erik Furusjö, Kentaro Umeki, Fuel conversion characteristics of black liquor and pyrolysis oil mixtures: efficient gasification with inherent catalyst, Biomass and Bioenergy, 79 (2015) 155-165. [link to the article]

14. Amit Kumar Biswas, Kentaro Umeki, Simplification of devolatilization models for thermally-thick wood particles: differences between wood logs and pellets, Chemical Engineering Journal, 274 (2015) 181-191. [link to the article]

13. Fan Liang Chan, Kentaro Umeki, Akshat Tanksale, Kinetic Study of Catalytic Steam Gasification of Biomass by Reactive Flash Volatilisation, ChemCatChem, 7 (2015) 1329-1337. [link to the article]

12. Jason Kramb, Jukka Konttinen, Albert Gómez-Barea, Antero Moilanen, Kentaro Umeki, Modeling biomass char gasification kinetics for improving prediction of carbon conversion in a fluidized bed gasifier, Fuel, 132 (2014) 107-115. [link to the article]

11. Amit Kumar Biswas, Magnus Rudolfsson, Markus Broström, Kentaro Umeki, Effect of pelletizing conditions on combustion behaviour of single wood pellet, Applied Energy, 119 (2014) 79-84. [link to the article]

10. Bayu Prabowo, Kentaro Umeki, Mi Yan, Masato Nakamura, Marco Castaldi, Kunio Yoshikawa, CO2-steam mixture for direct and indirect gasification of rice straw in a downdraft gasifier: laboratory-scale experiments and performance prediction, Applied Energy 113 (2014) 670-679. [link to the article]

9. Kentaro Umeki, Kawnish Kirtania, Luguang Chen, Sankar Bhattacharya, Fuel particle conversion of pulverised biomass during pyrolysis in an entrained flow reactor, Industrial and Engineering Chemistry Research 51 (2012) 13973-13979. [link to the article]

8. Kentaro Umeki, Antero Moilanen, Alberto Gόmez-Barea, Jukka Konttinen, A model of biomass char gasification describing the change in catalytic activity of ash, Chemical Engineering Journal 207-208 (2012) 616-624. [link to the article]

7. Kentaro Umeki, Tomoaki Namioka, Kunio Yoshikawa, The effect of steam on pyrolysis and char gasification behaviour during rice straw gasification, Fuel Processing Technology 94 (2012), 53-60. [link to the article]

6. Kentaro Umeki, Tomoaki Namioka, Kunio Yoshikawa, Analysis of an updraft biomass gasifier with high-temperature steam using a numerical model, Applied energy 90 (2012), 38-45. [link to the article]

5. Amit Kumar Biswas, Kentaro Umeki, Weihong Yang, Wlodzimierz Blasiak, Change of pyrolysis characteristics and structure of woody biomass due to steam explosion, Fuel Processing Technology 92 (2011), 1849-1854. [link to the article]

4. Kentaro Umeki, Seon-ah Roh, Tai-jin Min, Tomoaki Namioka, Kunio Yoshikawa, A simple expression for the apparent reaction rate of large wood char gasification with steam, Bioresource Technology 101 (2010), 4187-4192. [link to the article]

3. Kentaro Umeki, Kouichi Yamamoto, Tomoaki Namioka, Kunio Yoshikawa, High temperature steam-only gasification of woody biomass, Applied Energy 87 (2010), 791-798. [link to the article]

2. Kentaro Umeki, Young-il Son, Tomoaki Namioka, Kunio Yoshikawa, Basic Study on Hydrogen-rich Gas Production by High Temperature Steam Gasification of Solid Wastes, Journal of Environment and Engineering 4 (2009), 211-221. [full text - open access] 

1. Tomoaki Namioka, Mitsuo Miyazaki, Yoshiaki Morohashi, Kentaro Umeki, Kunio Yoshikawa, Modeling and Analysis of the Batch Type Thermal Sludge Pre-treatment Process for Optimal Design, Journal of Environment and Engineering 3 (2008), 170-181. [full text - open access]

3.  Chapter Solid Fuel Combustion, in "Advanced Turbulent Combustion Physics and Applications", Cambridge University Press, 2021 [link to the book]

2. Bayu Prabowo, Muhammad Aziz, Kentaro Umeki, Mi Yan, Herri Susanto, Kunio Yoshikawa, Utilization of rice husk in the CO2-recycling gasification system for the effective implementation of bio-energy with carbon capture and storage (BECCS) technology, ACS Symposium Series vol. 1194, Advances in CO2 Capture, Sequestration, and Conversion, chapter 13, 323-340, 2015. [link to the book chapter]

1. Kentaro Umeki, Visualizing chemical reactors and chemical reaction rate, Canon Fellows Anniversary Book -Making Research Visible to the World-, Printing, Canon Foundation in Europe, 2010.

9. Kentaro Umeki, Biomass fuel conversion, keynote at Oxyflame project meeting, Bad Münster, Germany, October 2021. http://www.oxyflame.de/ 

8. Kentaro Umeki, Thamali R. Jayawickrama, Nils Erland L. Haugen, Interacton of Chemical Reactions and Transport Phenomena at Intermediate Scales – Examples from Thermochemical Conversion of Biomass, Keynote lecture, International Conference on Mathematics in (bio)chemical Kinetics and Engineering, online/Shanghai, China, October 2021.

7. Kentaro Umeki, Biocarbon research in Luleå/Sweden - Toward sustainable steel industry -, keynote at BioCarbUp project meeting, Trondheim, Norway (online participation), March 2021. https://www.sintef.no/projectweb/biocarbup/ 

6. Kentaro Umeki, Recent topics in biomass and gasification technologies, Panel session on Clean Combustion of Solid Fuels, 10th International Conference on Applied Energy, Hong Kong, August 2018.

5. Kentaro Umeki, Innovations in gasification technologies, Deep-Dive-Workshop: Realising the Potential of Waste to Energy, Asia Clean Energy Forum 2018, Manila, Phillipines, June 2018.

4. Kentaro Umeki, Utilization of gas-chromatography (µGC and GC-MS-FID) in R&D activities of biomass thermochemical conversion and its future, Agilent Technologies Nordic Scientific Forum, Gothenburg, Sweden, March 2016.

3. Kentaro Umeki, Sustainable energy development.– Economic (and environmental) factors –.from Swedish experiences, International seminar on Sustainable Energy and Energy Transition, Quito, Ecuador, August, 2013.

2. Kentaro Umeki, R&D activities on biorefinery in nothern Sweden, International seminar on Sustainable Energy and Energy Transition, Quito, Ecuador, August, 2013.

1. Kentaro Umeki, Modeling of biomass devolatilization and char gasification at particle scale, Finnish-Swedish Flame days, Jyväskylä, Finland, April, 2013.

NEW! (scheduled)
86. Marcel Dossow, Sebastian Bastek, Kentaro Umeki, Hartmut Spliethoff, Sebastian Fendt, Process simulation of fuel production through integration of plasma gasification in a biomass-to-liquid process, 10th International Conference on Engineering for Waste and Biomass Valorisation (WasteEng2024), Sendai, Japan, August 2024

NEW! (scheduled)
85. Robert Lewtak, Sebastian Bastek, Sebastian Fendt, Jonas Brandstetter, Johannes Waßmuth, Kentaro Umeki, Andrius Tamosiunas and Hartmut Spliethoff, CFD study of the volatile yield effect on plasma-assisted biomass gasification in a vertical entrained-flow gasifier,37th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems (ECOS 2024), Rhodes, Greece, July 2024

NEW! (submitted)
84. M. Corvo- Alguacil, K. Umeki, R. Joffe, Scaling up a Two-Step Pyrolysis of CFRP: Study of Validation and Robustness, 21st European Conference on Composite Materials ECCM21, Nante, France, July 2024

NEW! (scheduled)
83. Sruthy Vattaparambil Sudharsan, Seyed Mohammad Razavi, Henrik Böhlenius, Marcus Öhman, Kentaro Umeki, Fuel composition and thermophysical properties of poplar from second rotation plantation, IUFRO World Congress 2024, Stockholm, Sweden, June 2024

NEW! (scheduled)
82. Robert Lewtak, Jonas Brandstetter, Johannes Waßmuth, Kentaro Umeki, Andrius Tamosiunas, Sebastian Bastek, Sebastian Fendt, Harmut Spliethoff, Optimization of the plasma-assisted gasification process in a vertical entrained-flow gasifier through the CFD simulations, 14th European Conference on Industrial Furnaces and Boilers, Algarve, Portugal, April 2024

NEW! (scheduled)
81. Zahra Ghasemi Monfared, Gunnar Hellström, Kentaro Umeki, Characterization of Packed Bed Reactors Using X-Ray Microtomography: Effect of Particle Irregularity and Particle Size Distribution on the Bed Morphology, 14th European Conference on Industrial Furnaces and Boilers, Algarve, Portugal, April 2024

NEW! (scheduled)
80. Eduardo Arango Durango, Kentaro Umeki, Exploring Fluidized Bed Technology for Biocarbon Production with Alkali/Phosphorus Mitigation, 14th European Conference on Industrial Furnaces and Boilers, Algarve, Portugal, April 2024

79. Liang Wang, Øyvind Skreiberg, Robert Johnson, Zhang Yang, Alba Dieguez-Alonso, Scott Turn, Kentaro Umeki, Production, Characterization and Conversion of Biocarbon under Different Conditions, Nordic Flame Days, Trondheim, Norway, November 2023

78. Kentaro Umeki, Sebastian Bastek, Andrius Tamosiunas, Robert Lewtak, Hartmut Spliethoff, Sebastian Fendt, Conversion of pulverized biomass upon the contact with thermal plasma, 11th International Freiberg Conference on Circular Carbon Technologies, Rotterdam, Netherlands, September 2023

77.  M. Corvo- Alguacil, K. Umeki, R. Joffe, Preservation of mechanical properties of carbon fibers after multiple pyrolysis cycles, 23th International Conference on Composite Materials (ICCM 23), Belfast, UK, August 2023. 

76. Yang Zhang, Kentaro Umeki, Enhancing Bio-carbon Production from Biomass Pyrolysis by Internal Recirculation of Bio-oil, 31st European Biomass Conferences and Exhibition (EUBCE 2023), Bologna, Italy, June 2023

75. Thamali Jayawickrama, Nils E.L. Haugen, Kentaro Umeki, On the inaccuracies of particle models for char conversion, 4th International Workshop on Oxy-Fuel Combustion, Naples, Italy, March 2023 

74. Marcelo Dal Belo Takehara, Muhammad Aqib Chishty,  Kentaro Umeki, Rikard Gebart, Investigation of oxygen-enriched biomass flames in a lab-scale entrained flow reactor, 4th International Workshop on Oxy-Fuel Combustion, Naples, Italy, March 2023 

73. M. Corvo- Alguacil, K. Umeki, R. Joffe, Retention of mechanical properties of carbon fibers after recovery by thermal treatment, International Conference on Sustainable Wind Turbine Blades: New Materials, Recycling and Future Perspectives, Risø, Denmark, November 2022.

72. Marcelo Dal Belo Takehara, Muhammad Aqib Chishty, Kentaro Umeki, Rikard Gebart, Reduction of Particulate Emissions from an Entrained Flow Reactor via Acoustic Forcing, 46th Clearwater Clean Energy Conference, Clearwater, USA, August 2022.

71. M. Corvo- Alguacil, K. Umeki, R. Joffe, Optimisation of pyrolysis parameters for CF composites with respect to mechanical properties of recovered fibers, 11th EEIGM International Conference on Advanced Materials Research, Barcelona, Spain, June 2022.

70. Marcelo Dal Belo Takehara, Muhammad Aqib Chishty, Kentaro Umeki, Rikard Gebart, Investigation of biomass particle flows in entrained flow reactors under acoustic excitation, SIAMUF (The Swedish Industrial Association for Multiphase Flow) seminar, Gothenburg, Sweden, May 2022.

69. Kentaro Umeki, Ryan Robinson, Ali Hedayati, Aekjuthon Phounglamcheik, Zahra Ghasemi Monfared, Elisabeth Wetterlund, Marcus Öhman, Elin Hernebrant, Magnus Pettersson, Sponge Iron with the New Black: Production and Use of Bio-coal in a Direct Reduced Iron (DRI) Plant, 16th Conference on Sustainable Development of Energy, Water and Environment Systems (SDEWES), online/Dubrovnik, Croatia, October 2021.

68. Aekjuthon Phounglamcheik, Markus Bäckebo, Ryan Robinson,  Kentaro Umeki, Effect of packing property on gasification reactivity of bio-coal in a packed-bed reactor , 7th International Symposium on Gasification and its Applications, online, September 2021.

67. Aekjuthon Phounglamcheik, Liang Wang, Henrik Romar, Norbert Kienzl, Markus Broström, Kersting Ramser, Øyvind Skreiberg, Kentaro Umeki, Effect of pyrolysis conditions and feedstocks on char gasification reactivity, 7th International Symposium on Gasification and its Applications, online, September 2021.

66. Marcelo Dal Belo Takehara, Muhammad Aqib Chishty, Kentaro Umeki, Rikard Gebart, Acoustic excitation effect on biomass combustion in a swirl stabilized burner: Flame characteristics and emissions, Symposium on Thermoacoustic in Combustion: Industry meets Academia, online/Garching, Germany, September 2021.

65. Aekjuthon Phounglamcheik, Nils Johnson, Norbert Kienzl, Christoph Strasser, Richard Deutsch, Kentaro Umeki, Assessment of self-heating in a biochar storage, 29th European Biomass Conferences and Exhibition (EUBCE2021), online and Marseille, France, April 2021.

64. Kentaro Umeki, Angel D. Garcia, Thamali R. Jayawickrama, Aekjuthon Phounglamcheik, Albert Bach-Oller, Rikard Gebart, Unresolved issues in modelling thermochemical conversion of biomass, 12th European Conference on Industrial Furnaces and Boilers, online, November 2020.

63. Kentaro Umeki, Juraj Priscak, Matthias Kuba, Decomposition of tars in dual fluidized bed gasification – mechanisms of formation and decomposition in long-term operation, International Conference on Polygeneration Strategies, Vienna, Austria, November 2019.

62. M. Aqib Chishty, Kentaro Umeki, Rikard Gebart, Modelling of Cyclone Gasifier Using an Improved Gas Phase Model based on a Flamelet Approach, Nordic Flame Days, Turku (Åbo), Finland, August 2019.

61. Ning Guo, Ángel David García Llamas, Tian Li, Kentaro Umeki, Rikard Gebart, Terese Løvås, Numerical simulation of jet force due to rapid moisture and volatile release during thermochemical conversion of biomass , Nordic Flame Days, Turku (Åbo), Finland, August 2019.

60. Thobias Kreitzberg, Aekjuthon Phounglamcheik, Carl Bormann, Reinhold Kneer, Kentaro Umeki,The change in size of char particles during combustion and gasificaiton in regime II, 11th Mediterranean Combustion Symposium, Tenerife, Spain, June 2019.

59. Ning Guo, Ángel David García Llamas, Tian Li, Kentaro Umeki, Rikard Gebart, Terese Løvås, CFD simulation of pulverized biomass conversion using spheroidal approximation, 17th International Conference on Numerical Combustion, Aachen, Germany, May 2019.

58. Thamali Jayawickrama, Nils E.L. Haugen, Matthaus U. Babler, Kentaro Umeki, The effect of Stefan flow on heat transfer coefficient of a reactive spherical particle in gas flow, 17th International Conference on Numerical Combustion, Aachen, Germany, May 2019. 

57. Albert Bach‐Oller, Erik Furusjö, Kentaro Umeki, Effect Of Potassium Impregnation On The Emission Of Tar And Soot From Biomass Gasification,10th International Conference on Applied Energy, Hong Kong, August 2018.

56. Aekjuthon Phounglamcheik, Romain Pitchot, Alf Andefors, Niclas Norberg, Kentaro Umeki, Production of charcoal from novel biomass pyrolysis concept: pilot-scale experiment, 22nd International Symposium on Analytical and Applied Pyrolysis, Kyoto, Japan, July 2018.

55. Aekjuthon Phounglamcheik, Liang Wang, Henrik Romar, Markus Broström, Kerstin Ramser, Øyvind Skreiberg, Kentaro Umeki, Effects of pyrolysis oil recycling and reaction gas atmosphere on the physical properties and reactivity of charcoal from wood, 22nd International Symposium on Analytical and Applied Pyrolysis, Kyoto, Japan, July 2018.

54. Thamali Jayawickrama, Nils E.L. Haugen, Matthaus U. Babler, Kentaro Umeki, Effect of Stefan flow on drag coefficient of reactive spherical particles in gas flow, Turbulence, Heat and Mass Transfer 9, Rio de Janeiro, Brazil, July 2018.

53. Aekjuthon Phounglamcheik, Kentaro Umeki, Change in size and apparent density of charcoal particles during heterogeneous reactions, 25th International Symposium of Chemical Reaction Engineering, Florence, Italy, June 2018

52. Angel D. Garcia, Rikard Gebart, Kentaro Umeki, The influence of operation parameters on local conditions and fuel conversion of biomass flame, 2nd International Workshop on Oxy-Fuel Combustion, Bochum, Germany, February 2018.

51. Anna Trubetskaya, Markus Broström, Jens Kling, Avery Brown, Kentaro Umeki, Effects of Lignocellulosic Compounds on the Yield, Nanostructure and Reactivity of Soot from Fast Pyrolysis at High Temperatures, Nordic Flame Days 2017, Stockholm, Sweden, October 2017.

50. Anna Trubetskaya, Kentaro Umeki, Characterization and prediction of tar formation from fast pyrolysis of lignin, Nordic Flame Days 2017, Stockholm, Sweden, October 2017.

49. Ángel D. García, Kawnish Kirtania, Kentaro Umeki, Evolution of Soot Size and Yield from Biomass under N2 and N2/CO2 Flow, Tenth Mediterranean Combustion Symposium, Naples, Italy, September 2017.

48. Erik Furusjö, Albert Bach Oller, Xiaoyan Ji, Chunyan Ma, Kentaro Umeki, Kawnish Kirtania, Elisabeth Wetterlund, Joakim Lundgren, Alkali enhanced entrained flow gasification of woody biomass, tcbiomass 2017, Chicago, USA, September 2017.

47. Albert Bach-Oller, Gustav Häggström, Kawnish Kirtania, Erik Furusjö, Kentaro Umeki, Alkali Compounds as Tar and Soot Suppressors in Entrained Flow Gasification, 25th European Biomass Conference & Exhibition, Stockholm, Sweden, June 2017.

46. Aekjuthon Phounglamcheik, Tobias Wretbron, Kentaro Umeki, Biomass pyrolysis with bio-oil recycle to increase energy recovery in biochar, 25th European Biomass Conference & Exhibition, Stockholm, Sweden, June 2017.

45. Anna Trubetskaya, Kentaro Umeki, An Experimental and Kinetic Modeling Study of Soot and Tar Formation from Fast Pyrolysis of Lignin, 2016 AIChE Annual Meeting, San Francisco, USA, November 2016.

44. Anna Trubetskaya, Daniel Eriksson, Kentaro Umeki, Markus Broström, Fast Pyrolysis of Forestry Residue. Effect of Supercritical Fluid Extraction on the Product Yields, Reactivity and Morphology of Char, 2016 AIChE Annual Meeting, San Francisco, USA, November 2016.

43. Kawnish Kirtania, Joel Axelsson, Leonidas Matsakas, Erik Furusjö, Kentaro Umeki, Alkali Catalyzed Gasification of Woody Biomass with the Potential of Catalyst Recovery, 24th European Biomass Conference & Exhibition, Amsterdam, Netherlands, June 2016.

42. Burak Göktepe, Angel David Garcia-Llamas, Kentaro Umeki, Rikard Gebart, Influence of inter-particle distance on soot formation from oxygen blown entrained flow gasificaiton, 1st International Workshop on Oxy-Fuel Combustion, Montabaur, Germany, February 2016.

41. Anna Trubetskaya, Anker D. Jensen, Peter Arendt Jensen, Peter Glarborg, Angel David Garcia Llamas, Kentaro Umeki, Effect of Fast Pyrolysis Conditions on the Biomass Solid Residues at High Temperatures (1000-1400°C), 2015 AIChE Annual Meeting, Salt Lake City, USA, November 2015.

40. Kentaro Umeki, Mikael Risberg, Improving the performance of CFD simulation for entrained flow biomass gasifiers by considering intra-particle mass and heat transfer, tcbiomass 2015, Chicago, USA, November 2015.

39. Albert Bach Oller, Kawnish Kirtania, Erik Furusjö, Kentaro Umeki, Characterization of tar and soot formation for an improved co-gasification of black liquor and pyrolysis oil, tcbiomass 2015, Chicago, USA, November 2015.

38. Erik Furusjö, Kawnish Kirtania, Yawer Jafri, Albert Bach, Kentaro Umeki, Ingvar Landälv, Rikard Gebart, Co-gasification of pyrolysis oil and black liquor – a new track for production of chemicals and transportation fuels from biomass, tcbiomass 2015, Chicago, USA, November 2015.

37. Burak Göktepe, Ammar Hazim, Kentaro Umeki, T. Staffan Lundström, Rikard Gebart, Effect of acoustic waves on soot formation in pulverised biomass burner, Nordic Flame Days 2015, Copenhagen, Denmark, October 2015.

36. Sennai Mesfun, Jan-Olof Andersson, Kentaro Umeki, Andrea Toffolo, Integrated SNG production in a typical Nordic sawmill, 28th ECOS conference, Pau, France, July 2015.

35. Fan Liang Chan, Kentaro Umeki, Akshat Tanksale, Catalytic Steam Gasification of Biomass Using Reactive Flash Volatilisation- A Kinetic Study, Energy Future Conference 2014, Sydney, Australia, November 2014.

34. Per Holmgren, Kentaro Umeki, Anna Strandberg, David R. Wagner, Roger Molinder, Henrik Wiinikka, Markus Broström, Size, shape and density changes of biomass particles during devolatilization in a drop tube furnace, Impacts of Fuel Quality on Power Production, Snowbird, Utah, USA, October 2014.

33. Anna Strandberg, David R. Wagner, Per Holmgren, Roger Molinder, Henrik Wiinikka, Kentaro Umeki, Markus Broström, Influence of biomass particle properties and pyrolysis conditions on intrinsic char gasification reactivity, Impacts of Fuel Quality on Power Production, Snowbird, Utah, USA, October 2014.

32. Burak Göktepe, Kentaro Umeki, Rikard Gebart, Soot formation from biomass in an idealized entrained flow gasifier atmosphere, 4th International Symposium on Gasification and its Applications, Vienna, Austria, September 2014.

31. Amit Kumar Biswas, Kentaro Umeki, Numerical modelling of wood pellet pyrolysis, 4th International Symposium on Gasification and its Applications, Vienna, Austria, September 2014.

30. Albert Bach, Erik Furusjö, Kentaro Umeki, Fuel conversion characteristics of black liquor and pyrolysis oil mixture for efficient gasification with inherent catalyst, 22nd European Biomass Conference and Exhibition, Hamburg, Germany, June 2014.

29. Yasuto Tanaka, Kentaro Umeki, Yutaka Tamaura, Kunio Yoshikawa, Performance of hybrid power generation system integrated with biomass gasification and concentrated solar thermal process, 6th International Conference on Applied Energy, Taipei, Taiwan, June 2014.

28. Antero Moilanen, Jere Lehtinen, Kentaro Umeki, Rainer Backman, Ikka Hannula, Understanding Gasification Reactivity Behaviour of Four Biomass Samples from USA based on Modelling and Thermodynamic Equilibrium Calculations of Ash Components, 63rd Canadian Chemical Engineering Conference, Fredericton, Canada, October 2013.

27. Kevin J. Whitty, Daniel J. Sweeney, Kentaro Umeki, Evaluation and Modeling oF Biomass Conversion in a Low Temperature Steam Fluidized Bed, 8th International Black Liquor and Biomass Colloquium, Belo Holizonte, Brazil, May 2013.

26. Kentaro Umeki, Antero Moilanen, Alberto Gόmez-Barea, Jukka Konttinen, A model for the dynamic change in catalytic activity of ash during gasification of biomass char, 22nd International Symposium of Chemical Reaction Engineering, Maastricht, Netherland, September 2012.

25. Bayu Prabowo, Mi Yan, Kentaro Umeki, Masato R. Nakamura, Marco J. Castaldi, Kunio Yoshikawa, CO2-steam gasification of rice straw using a downdraft gasifier, International Conference on Applied Energy 2012, Suzhou, China, July 2012.

24. Amit Kumar Biswas, Kentaro Umeki, Weihong Yang, Wlodzimierz Blasiak, Effect of steam explosion pretreatment on biomass reactivity, International Conference on Applied Energy 2011, Perugia, Italy, May 2011.

23. Kentaro Umeki, Tomoaki Namioka, Weihong Yang, Kunio Yoshikawa, Performance analysis of biomass gasification and power generation system with high temperature steam, 8th High Temperature Air Combustion and Gasification International Symposium, Poznan, Poland, July 2010.

22. Bayu Prabowo, Kentaro Umeki, Tomoaki Namioka, Kunio Yoshikawa, The effects of CO2 presence on rice straw gasification, 8th High Temperature Air Combustion and Gasification International Symposium, Poznan, Poland, July 2010.

21. Amit Kumar Biswas, Kentaro Umeki, Weihong Yang, Wlodzimierz Blasiak, Pyrolysis of wood particle in high temperature steam environment, 8th High Temperature Air Combustion and Gasification International Symposium, Poznan, Poland, July 2010.

20. Kentaro Umeki, Amit Kumar Biswas, Weihong Yang, Apparent Pyrolysis Rate of Large Biomass Particle in High Temperature Steam Flow, Renewable Energy Research Conference, Trondheim, Norway, June 2010.

19. Kentaro Umeki, Tomoaki Namioka, Kunio Yoshikawa, Performance analysis of biomass gasifier with high-temperature steam in an updraft fixed-bed gasifier, International Conference on Applied Energy 2010, Singapore, April 2010.

18. Kentaro Umeki, Amit Kumar Biswas, Weihong Yang, Kunio Yoshikawa, Pyrolysis of Large Wood Particle by High Temperature Steam Stream, 6th International Conference on Fluid and Thermal Energy Conversions, Tongyeong, South Korea, December 2009.

17. Kentaro Umeki, Seon-ah Roh, Woo-hyun Kim, Tomoaki Namioka, Kunio Yoshikawa, Apparent rate of large wood biomass char gasification with steam, International Symposium on Low Carbon Technologies, Beijing, China, September 2009.

16. Qinglin Zhang, Liran Dor, Kentaro Umeki, Weihong Yang, Wlodzimierz Blasiak, Process modeling and performance analysis of a PGM gasifier, 10th International Conference on Energy for a Clean Environment, Lisbon, Portugal, July 2009.

15. Kentaro Umeki, Yudai Kaneko, Weihong Yang, Wlodzimierz Blasiak, Kunio Yoshikawa, Heterogeneous reactions in a high temperature steam-only gasification process of biomass, 5th International Conference on "Combustion, Incineration/Pyrolysis, and Emission Control (i-CIPEC2008)", C-055, Chiang Mai, Thailand, December 2008.

14. Kentaro Umeki, Tomoaki Namioka, Kunio Yoshikawa, Seon-ah Roh, Woo-hyun Kim, Kinetics study of wood char gasification with steam, 4th Korea-Japan Joint Symposium (KIMM-TITech), Lake Yamanaka, Japan, November 2008.

13. Yudai Kaneko, Kentaro Umeki, Tomoaki Namioka, Kunio Yoshikawa, Products Distribution Characteristics of Pyrolysis and Steam Gasification of Agricultural Biomass, 4th Korea-Japan Joint Symposium (KIMM-TITech), Lake Yamanaka, Japan, November 2008.

12. Kentaro Umeki, Weihong Yang, Tomoaki Namioka, Kunio Yoshikawa, Products Distribution Characteristics of Pyrolysis and Steam Gasification of Woody and Agricultural Biomass, 27th International Conference on Thermal Treatment Technologies, #21, Montreal, Canada, May 2008.

11. Tomoaki Namioka, Yoshiaki Morohashi, Kentaro Umeki, Kunio Yoshikawa, Modeling of Batch Type Thermal Sludge Pre-treatment Process for Optimal Design. Semitheoretical Unsteady Energy balance Model, 27th International Conference on Thermal Treatment Technologies, #88, Montreal, Canada, May 2008.

10. Kentaro Umeki, Tomoaki Namioka, Kunio Yoshikawa, R&D on high temperature steam gasification process of solid wastes, 7th High Temperature Air Combustion and Gasification International Symposium, HiTACG_104, Phuket, Thailand, January 2008.

9. Kentaro Umeki, Tomoaki Namioka, Kunio Yoshikawa, Mass loss characteristics of woody biomass pyrolysis under various atmospheres, 3rd KIMM-TITech Joint Workshop, Gyeongju, November 2007.

8. Tomoyuki Nara, Kentaro Umeki, Tomoaki Namioka, Kunio Yoshikawa, Takahiro Nakamura, High Temperature Steam Gasification System for Solid Wastes -Effect of Operating Conditions on the Quality of the Produced Gas-, 3rd KIMM-TITech Joint Workshop, Gyeongju, November 2007.

7. Kentaro Umeki, Tomoyuki Nara, Kunio Yoshikawa, Yoshio Hirano, Performance of Solid Waste Gasification System with High Temperature Steam, 26th International Conference on Incineration & Thermal Treatment Technologies, #10, Phoenix, USA, May 2007.

6. Kentaro Umeki, Tomoyuki Nara, Tomoaki Namioka, Kunio Yoshikawa, Modeling of Steam Gasification of Woody Biomass Char in a Fixed-Bed Gasifier, 2nd KIMM-TITech Joint Workshop, Yokohama, November 2006.

5. Tomoyuki Nara, Kentaro Umeki, Tomoaki Namioka, Kunio Yoshikawa, Performance Evaluation of High Temperature Steam Gasification System for Solid Waste, 2nd KIMM-TITech Joint Workshop, Yokohama, November 2006.

4. Kentaro UMEKI, Shunsuke YAO, Tomoaki NAMIOKA, Kunio YOSHIKAWA, Yoshio HIRANO, Development on Hydrogen Production System from Solid Wastes with High Temperature Steam, 25th International Conference on Incineration & Thermal Treatment Technologies, #10, Savannah, USA, May 2006.

3. Kentaro UMEKI, Shunsuke YAO, Tomoaki NAMIOKA, Kunio YOSHIKAWA, Characteristic of Biomass and Plastic Gasification with Steam -For Hydrogen Production-, 1st KIMM-TITech Joint Workshop, Jeju Isrand (Korea), November 2005.

2. Shunsuke YAO, Kentaro UMEKI, Tomoaki NAMIOKA, Kunio YOSHIKAWA, Energy Balance Analysis of the HyPR-MEET System Based on the Fundamental Experiment, 1st KIMM-TITech Joint Workshop, Jeju Isrand (Korea), November 2005.

1. Kentaro Umeki, Shunsuke Yao, Young-il Son, Tomoaki Namioka, Kunio Yoshikawa, Basic Studies on Hydrogen Production System from Solid Wastes with High Temperature Steam, 6th International Symposium on High Temperature Air Combustion and Gasification, Essen, Germany, October 2005.

Popular scientific articles

• • Mindre sot med vågornas ljud, Unga forskare - En satsning på skarpa hjärnor i Norrbotten, Norrbotten Forskninsråd (see "NoFo-Unga-forskare-UMEKI.pdf" below)

  • Gunnar Öquist Fellows 2012-2016, Kempestiftelserna (see "GÖF_umeki.pdf" below)

• Kentaro Umeki, 4R concept for the energy consumption, Journal of the Japan Institute of Energy 86 (2007), 926 (in Japanese). [PDF download]

Media appearances

Here is the link to the media appearances (including university website).

• • "Researchers at Luleå University of Technology are helping Höganäs AB to become fossil-free" - Höganäs AB, 19 December 2018

  • "Five million granted for research on fossil-free steel production" - Luleå University of Technology, 19 December 2018

  • "Supervisor of the year balances structure and freedom" - Luleå University of Technology, 14 November 2018

  • "På speeddejt med forskare" - SVT Nyhetter Norrbotten, 28 September 2018

  • "Forskarfredag bjöd unga på nyfikenhet och glädje" - Sveriges Radio Norrbotten, 28 September 2018

  • "Prestigious award to Luleå researcher" - Luleå University of Technology, 1 December 2016

  • "Luleåforskare får fin utmärkelse" - Piteå tidningen, 1 December 2016

  • "Tre miljoner till Luleåforskare" - NSD, 2 December 2016

  • "Gunnar Öquist Fellowship Awarded Bio4Energy Researcher - Again" - Bio4Energy

  • "Joint workshop with HVI-GasTech" - Luleå University of Technology, 21 March 2016

  • "Problem-solving Studies on Biomass Gasification, Waste Water Treatment Enabled by VR Grants" - Bio4Energy, 04 November 2015

  • "Bio4Energy Researchers Tackle Soot Agglomeration in Entrained-flow Gasification of Biomass" - Bio4Energy, 19 January 2015

  • "Million prize to researchers developing Norrbotten" - Luleå University of Technology, 8 January 2015

  • "Här är LTU:s spetsforskare", Norrbotten Kurriren, 8 January 2015

  • "Bio4Energy Thermal Conversion of Biomass: People Reshuffle, Similar Direction of Research" - Bio4Energy, 25 June 2014

  • "Possibility for Technology Transfer Emerges at Ecuador Renewable Energy Meeting" - Bio4Energy, 03 September 2013

  • "Shells from rice becomes electricity in Vietnam" - Luleå University of Technology, 20 April 2012 (Machine translation made it wrong. It is "rice husk", not "shells from rice")

  • "Interview with Kentaro Umeki" - Euraxess Sweden (I think it was around 2011)