CCS and Power Systems

Advanced Energy Systems - Coal and Coal/Biomass to Liquids

Investigation of Coal-Biomass Catalytic Gasification Using Experiments, Reaction Kinetics and Computational Fluid Dynamics

Performer: Virginia Polytechnic Institute and State University

Project No: FE0005476

Project Description

This Virginia Tech project is a collaborative effort involving experiments, kinetic modeling, and computational fluid dynamics that incorporates efficient methods for solving complex heterogeneous chemistry. The goal is to determine the key reactive properties for coal-biomass mixed fuels. To achieve this goal, sub-bituminous coal will be mixed with biomass feedstocks of hybrid poplar wood, switchgrass, or corn stover and catalysts added to lower the gasification temperatures, thereby improving the gasification process. The outcome of this research will be characterization of the chemical kinetics and reaction mechanisms of the co-gasification fuels and development of a set of models that can be integrated into other modeling environments. Finally, the reaction kinetics modeling will be implemented into NETL’s multiphase flow code—Multiphase Flow with Interphase Exchange (MFIX)—to efficiently simulate the chemistry and recommendations will be made regarding fluidization characteristics.

SEM photograph of biomass char from pyrolysis of oak wood without catalyst
(Source: Virginia Tech). 

SEM photograph of biomass char from pyrolysis of pine with catalyst
(Source: Virginia Tech).

Project Details