Co-production of decarbonized synfuels and electricity from coal plus biomass with CO2 capture and storage: an Illinois case study

Energy, carbon, and economic performances are estimated for facilities co-producing Fischer-Tropsch Liquid (FTL) fuels and electricity from a co-feed of biomass and coal in Illinois, with capture and storage of by-product CO2. The estimates include detailed modeling of supply systems for corn stover or mixed prairie grasses (MPG) and of feedstock conversion facilities. Biomass feedstock costs in Illinois (delivered at a rate of one million tonnes per year, dry basis) are $ 3.8/GJ(HHV) for corn stover and $ 7.2/GJ(HHV) for MPG. Under a strong carbon mitigation policy, the economics of co-producing lowcarbon fuels and electricity from a co-feed of biomass and coal in Illinois are promising. An extrapolation to the United States of the results for Illinois suggests that nationally significant amounts of low-carbon fuels and electricity could be produced this way.