Abstract
Integration of biomass energy technologies with carbon capture and sequestration could yield useful energy products
and negative net atmospheric carbon emissions. We survey the methods of integrating biomass technologies with
carbon dioxide capture, and model an IGCC electric power system in detail. Our engineering process model, based on
analysis and operational results of the Battelle/Future Energy Resources Corporation gasifier technology, integrates
gasification, syngas conditioning, and carbon capture with a combined cycle gas turbine to generate electricity with
negative net carbon emissions. Our baseline system has a net generation of 123MWe, 28% thermal efficiency, 44%
carbon capture efficiency, and specific capital cost of 1,730 $ kWe
1. Economic analysis suggests this technology could be
roughly cost competitive with more conventional methods of achieving deep reductions in CO2 emissions from electric
power. The potential to generate negative emissions could provide cost-effective emissions offsets for sources where
direct mitigation is expected to be difficult, and will be increasingly important as mitigation targets become more
stringent.
r 2005 Elsevier Ltd. All rights reserved.
Keywords: Biomass; Gasification; IGCC; Carbon capture; Carbon mitigation
AbstractIntegration of biomass energy technologies with carbon capture and sequestration could yield useful energy productsand negative net atmospheric carbon emissions. We survey the methods of integrating biomass technologies withcarbon dioxide capture, and model an IGCC electric power system in detail. Our engineering process model, based onanalysis and operational results of the Battelle/Future Energy Resources Corporation gasifier technology, integratesgasification, syngas conditioning, and carbon capture with a combined cycle gas turbine to generate electricity withnegative net carbon emissions. Our baseline system has a net generation of 123MWe, 28% thermal efficiency, 44%carbon capture efficiency, and specific capital cost of 1,730 $ kWe1. Economic analysis suggests this technology could beroughly cost competitive with more conventional methods of achieving deep reductions in CO2 emissions from electricpower. The potential to generate negative emissions could provide cost-effective emissions offsets for sources wheredirect mitigation is expected to be difficult, and will be increasingly important as mitigation targets become morestringent.r 2005 Elsevier Ltd. All rights reserved.Keywords: Biomass; Gasification; IGCC; Carbon capture; Carbon mitigation
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