Multiphysics Simulation of Supercritical CO2 Gasification for Hydrogen Production

Conference · Tue Jul 19 00:00:00 EDT 2022

OSTI ID:1877662

Prlina, Alexander ^[1]; Eddings, Eric ^[1]; Breault, Ronald ^[2]

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1. University of Utah
2. NETL

A bench-scale supercritical CO2 gasifier is being considered by the U.S. Department of Energy’s National Energy Technology Laboratory (NETL). A reacting computational fluid dynamics (CFD) model was developed using ANSYS/Fluent in order to investigate the impact of various operating parameters on syngas composition. The model was validated using available data in the literature. Simulations were conducted over a range of coal-slurry loadings, reaction temperatures, system pressures, and oxygen mass flowrates with the goal of optimizing hydrogen production for the considered reactor. The results from the simulations identified a positive correlation between slurry loading and hydrogen production, while reactor temperature and pressure had a limited impact on H2 production at the conditions of interest. Additionally, the simulations indicated that oxygen mass flowrate has less of an impact on hydrogen production at higher slurry loadings.

• Research Organization: National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV, and Albany, OR (United States)
• Sponsoring Organization: USDOE Office of Fossil Energy (FE)
• OSTI ID: 1877662
• Report Number(s): DOE/NETL-2022/3262
• Resource Relation: Conference: Conference Name: 46th International Technical Conference on Clean Energy Location: Clearwater, FL, United States Start Date: 8/1/2022 12:00:00 AM End Date: 8/4/2022 12:00:00 AM
• Country of Publication: United States
• Language: English