Burner-intensification

Research overview >

Application of forced particle dispersion to reduce formation of soot from biomass gasification

In this project, we are developing a new technique to reduce soot formation in entrained flow gasification process.

The methodology is commonly called process intensification (enhancing mixing of gas and solid flows to improve reactor performances) in chemical engineering field, but it has been rarely applied to gasification or combustion field. In this project, we are trying to force dispersion of biomass particles with active flow manipulation techniques.

Hypothesis of the working principle in this work is that gas-phase reactions of heavy molecule species such as aromatic hydrocarbons can be manipulated by changing the local reaction conditions inside the flame. An effective way to control the local reaction conditions is to disperse fuel particles by means of e.g. swirl flow, synthetic jet (acoustic wave), bluff body, and so on. We are investigating how such various techniques can change the dispersion of fuels, and modify the reaction pathways of heavy molecule species with dedicated experiments. The results of the project will contribute to develop a new design criteria of the low-soot gasification burners.

The project is supported by Norrbotten Research Council (2015-2018), and the main participant is Ángel David.

Some results

Under construction

Publications

  • 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, accepted.

  • 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.

  • 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.

Conferences

  • 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.

  • 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.