The ethanol part of the process is based on an Aspen Plus
model of a dry-grind plant obtained from the USDA Agricultural
Research Service [12e14]. Our modeling adds biomass
gasification and combustion to produce syngas following the
approach of De Kam et al. [10]. It includes syngas cleanup prior
to the gas turbine as well as stack gas treatment. The power
generation model is based on a combined cycle gas turbine
and steam turbine. The biomass gasification/combustion and
power generation comprise the power island at the biomass
fueled ethanol plant.