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My name is Goutham Kotamreddy. I received my Bachelors in Chemical Engineering from CBIT, Osmania University in 2010. Then, I joined process modeling and simulation group at Invensys ODC. There, I worked on modeling and testing of process simulation products for three years, focus on DYNSIM and ROMeo. Later I received Masters in Chemical Engineering from University of Florida in 2015. My research was on fuel cells systems especially steady state multiplicity in Direct Methanol Fuel Cells. I joined Advanced process engineering and systems group in 2016. My research project focused on modeling and optimization aspects of Micro encapsulated advanced solvent systems for carbon capture as part of CCSI2.
Work Experience:
Currently working at Braskem, Pittsburgh, PA
Process Modeling and Simulation Group, Invensys ODC, India, 2010 - 2013
Education:
Ph.D. Chemical Engineering, West Virginia University, Morgantown, WV, 2016 - 2021
M.S. Chemical Engineering, University of Florida, Gainesville, FL, 2013 - 2015
B.Sc. Chemical Engineering, Osmania University, Hyderabad, India, 2006 - 2010
PhD Research
PhD Research
The aim of this research is to develop multiscale process models for MECS technology to better our understanding of the operational and economical challenges at a commercial scale. First, a rigorous capsule model with sodium carbonate as encapsulated solvent has been developed and validated with the experimental data. The reactor level model integrates the bulk scale mass, heat transfer, and hydrodynamics with capsule model that encompasses solvent physio-chemical properties, kinetics, mass and heat transfer. The resulting multi-scale model is then used to simulate both absorption and regeneration stages for a temperature swing system. The performance of MECS technology in a fixed bed and moving bed reactor configurations is evaluated. As the solvent resides inside the microcapsule it is difficult to measure, hence the study proposes a soft sensing approach to estimate the water content in the capsule. The developed soft sensor is used in the control framework put together for maintaining the water content and key process variables at their desired levels. The scope of the work also includes the techno-economic analysis of CO2 absorption for a 644 MWe gross power plant to understand the commercial feasibility of this technology. Further, the sensitivity with respect to encapsulated solvent is also shown by comparing solvents namely sodium carbonate, ionic liquids, and piperazine (PZ).
Publications
Publications
Kotamreddy G, Hughes R, Bhattacharyya D, Matuszewski M, Omell B, "Multi-scale Dynamic Modeling and Techno-economic Optimization of a CO2 capture process using Microencapsulated Carbon Sorbents in a Moving Bed Contactor", 126, 103905, International Journal of Greenhouse Gas Control, 2023
Hughes R, Kotamreddy G, Bhattacharyya D, Omell B, Matuszewski M, “Modeling and Bayesian Uncertainty Quantification of a Membrane-Assisted Chilled Ammonia Process for CO2 Capture”, 61, 4001-4016, Industrial & Engineering Chemistry Research, 2022
Hughes R, Kotamreddy G, Ostace A, Bhattacharyya D, Siegelman R, Parker S, Didas S, Long J, Omell B, Matuszewski M, “Isotherm, Kinetic, and Process Modeling and Techno-Economic Analysis of a Fixed Bed Temperature Swing Adsorption Process for a Diamine-Appended Metal-Organic Framework”, Energy & Fuels, 35, 6040-6055, 2021
Mevawala C, Bai X, Kotamreddy G, Bhattacharyya D, Hu J, “Multi-Scale Modeling of a Direct Non-Oxidative Methane Dehydroaromatization Reactor with a Validated Model for Catalyst Deactivation”, Industrial & Engineering Chemistry Research, 60, 4903-4918, 2021
Kotamreddy G, Hughes R, Bhattacharyya D, Stolaroff J, Hornbostel K, Matuszewski, M, Omell, B, “Process Modeling and Techno-Economic Analysis of a CO2 Capture Process Using Fixed Bed Reactors with a Microencapsulated Solvent”, Energy & Fuels, 33, 7534-7549, 2019
Presentations
Presentations
Kotamreddy G, Hughes R, Bhattacharyya D, “Dynamic Modeling and Soft Sensor Based Predictive Control of a Moving Bed Process for CO2 Capture Using a Micro-Encapsulated Solvent”, Paper 414f, AIChE Annual Meeting, Boston, MA, November 7-19, 2021
Kotamreddy G, Hughes R, Bhattacharyya D, “Optimal Selection of Solvent and Contactor Technology for Micro-Encapsulated Carbon Sorbent (MECS) Based CO2 Capture”, Paper 244c, AIChE Annual Meeting, Boston, MA, November 7-19, 2021
Kotamreddy G, Hughes R, Bhattacharyya D, Matuszewski M, Omell B, “Dynamic Modeling, Optimization, and Control studies of a Moving Bed Process for CO2 capture using a Micro-Encapsulated Solvent”, Virtual AIChE Annual Meeting, November 16-20, 2020
Kotamreddy G, Hughes R, Bhattacharyya D, Stolaroff J, Omell B, Matuszewski M S, “Optimal Techno-Economic Design and Operation of a Fixed Bed System using Micro-Encapsulated Solvent for CO2 Capture”, Paper 57e, AIChE Annual Meeting, Orlando, FL, November 10-15, 2019
Kotamreddy G, Hughes R, Bhattacharyya D, Stolaroff J, Omell B, Matuszewski M S, “Plant-wide Optimization of a Moving Bed Process for CO2 Capture Using a Micro-Encapsulated Solvent”, Paper 515f, AIChE Annual Meeting, Orlando, FL, November 10-15, 2019
Kotamreddy G, Hughes R, Bhattacharyya D, Stolaroff J, Matuszewski M, “Process Modeling and Experimental Studies of a Novel Micro-Encapsulated Solvent System for CO2 Capture”, Paper 398j, AIChE Annual Meeting, Minneapolis, MN, October 29-November 3, 2017
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