Modelling and optimization of a Biomass-to-Liquid process using VMGSim
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A biomass-to-liquid plant consists of pretreatment, gasification , syngas cleaning and conditioning, Fischer-Tropsch (FT) synthesis, and products upgrading. In the FT reactor the syngas is converted to liquid fuels on a cobolt (or iron) catalyst. There exist different reactor types of FT units, such as slurry bubble column, fixed bed and microchannel reactors. Here, we want to make a model of a fixed bed reactor of the FT synthesis in a new simulation system called VMGSim. A gasification model is already in the system. A kinetic model of the FT kinetics should be implemented in the simulation tool. This kinetic model takes into account a limited number of components, both alkanes and alkenes, and the selectivity to different products depends on composition and temperature. New process configuration of the BtL plant will be evaluated.