Co-generation, Ethanol Production and CO2
Enhanced Oil Recovery
Model for Environmentally and Economically Sound Linked Energy
Kansas Geological Survey
Open-file Report 2002-6
Potential Energy Gains and CO2 Avoided
on Annual Basis
- 25 million gallon/year ethanol plant running
at full capacity
- Plant is currently running at 25 million gallon/year rate
and may increase to 40 million gallons /year in 2002\
- 15 Mw co-generation running at full capacity
- Co-generation is in testing phase and generation is scheduled
for 2nd quarter 2002
- Entire CO2 stream is used for EOR
- CO2 stream is currently being vented.
Food grade liquifaction facilities are planned. 10-20% of CO2 stream will be trucked to pilot site for
demo flood. This model assumes that all CO2
is captured and transported via high pressure pipeline and used
- Net utilization = CO2 sequestered
= 4.3 MCF/BO recovered
- Net utilization projected in current DOE project and actual
could be higher or lower. This is assumed = CO2
retained, understanding that actual retention does not necessarily
equal net utilization.
- Distiller Dried Grains (DDG) offset cattle grain feed
- DDG are currently being marketed.
Methodology for Calculating Energy Gained and CO2
The linking together of the energy systems outlined in this
poster will result in both gains and savings of energy, while
avoiding the emissions of carbon dioxide (CO2)
in the process. Calculating these values was achieved by taking
a life-cycle approach and determining savings or gains in energy
in the linked systems as compared to each process operating independently.
All systems were assumed to operate at full capacity.
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Last updated March 2002