Research

Publications

Prospective Students

Education

Events

People

Search

Seminars

Links

Home

Publications

CEIC-03-02

"A Technical and Economic Assessment of Selexol-based CO2 Capture Technology for IGCC Power Plants"

Chao Chen

Abstract:
Increasing CO2 emissions and concerns about potential climate change are arousing great interest in the technical and economic feasibility of capturing CO2 from large energy system, such as coal-based power plants. Performance and cost models of a Selexol-based CO2 absorption system for capturing CO2 from an advanced power system (Integrated Gasification Combined Cycle, IGCC) have been developed and integrated with an existing IGCC modeling framework without CO2 capture. The integrated model has been applied to study the feasibility, cost and uncertainties of carbon capture and sequestration at both greenfield and repowered IGCC plants. The analysis shows that based on commercially available technology, the cost of CO2 avoided for an IGCC power plant is half that for a conventional combustion plant with a chemical absorption process. For IGCC systems, the uncertainty associated with CO2 transport and storage has the largest impact on the cost of CO2 avoided. Under suitable conditions, IGCC repowering was shown to be an attractive option for reducing CO2 emissions from existing coal-fired plants. Compared to building greenfield IGCC plants, IGCC repowering also provides an option for introducing new power generation technology with lower risk to utilities.

PDF's are password protected. If you're a first-time visitor and need a password, please click here.