Published December 2010
In this Report we present a parametric model to describe the economics of post-combustion carbon capture in coal-fired electric power generation. The model is designed to allow the consistent comparison of costs across any post-combustion carbon capture technology. The work is centered around the development of SRIC's independent cost analyses tied to the basis of comparison laid out in the US Department of Energy report, "Cost and Performance Baseline for Fossil Energy Plants," DOE/NETL-2007/1281. A simplified model is also presented which allows estimation of approximate cost of CO2 avoided using three inputs: gross parasitic load, capital cost of the carbon capture unit, and capital equipment price level.
Costs are evaluated for twelve cases involving ten different post-combustion carbon capture technologies. The cases include ten post-combustion carbon capture technologies: monoethanolamine scrubbing, the Mitsubishi Heavy Industries process, chilled ammonia, ammonia scrubbing without refrigeration, oxycombustion with cryogenic ASU, advanced oxycombustion with cryogenic ASU but no FGD, oxycombustion with air separation via ion transport membrane, advanced oxycombustion with air separation via ion transport membrane but no FGD, pressure swing adsorption or membrane separation, and vacuum swing adsorption. We also examine two other cases: MEA scrubbing with thermodynamic minimum energy used for the separation and compression, and a hypothetical amine technology using the most favorable reasonably achievable thermodynamic assumptions.
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