Wednesday, May 7, 2008 - 10:30 AM
10-05

Environmental and Economic Analysis of the Fully Integrated Biorefinery

Elizabeth D. Sendich, Chemical Engineering & Material Science, Michigan State University, 2527 Engineering Bldg., East Lansing, MI 48824, C. Alan Rotz, Pasture Systems and Watershed Management Research Unit, USDA-ARS, Building 3702, Curtin Road, University Park, PA 16802, and Bruce E. Dale, Department of Chemical Engineering and Material Science, Michigan State University, 3247 Engineering, East Lansing, MI 48824.

The biorefinery using Ammonia Fiber Expansion (AFEX) pretreatment has been modeled for the production of fuel ethanol from cellulosic biomass, but work has not yet been done to integrate the biorefinery with cropping (agricultural) and animal production systems.  Combining these three subsystems in a single integrated analysis will allow for environmental and economic modeling of biomass production, possible secondary products, fertilizer production, and bioenergy production.  Using the Integrated Farm System Model (IFSM), the biorefinery is concurrently simulated with the animal and crop production units in various locations within the United States, under various farm production scenarios.  This combined approach allows analysis of economic profitability and directs the development of pathways that also enhance the environment.


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