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http://dx.doi.org/10.5293/KFMA.2010.13.1.009

Analysis of the Influence of CO2 Capture on the Performance of IGCC Plants  

Cha, Kyu-Sang (인하대학교 대학원 기계공학과)
Kim, Young-Sik (인하대학교 대학원 기계공학과)
Lee, Jong-Jun (인하대학교 대학원 기계공학과)
Kim, Tong-Seop (인하대학교 기계공학부)
Sohn, Jeong-L. (서울대학교 항공우주공학부)
Joo, Yong-Jin (한국 전력연구원)
Publication Information
The KSFM Journal of Fluid Machinery / v.13, no.1, 2010 , pp. 9-16 More about this Journal
Abstract
In the power generation industry, various efforts are needed to cope with tightening regulation on carbon dioxide emission. Integrated gasification combined cycle (IGCC) is a relatively environmentally friendly power generation method using coal. Moreover, pre-combustion $CO_2$ capture is possible in the IGCC system. Therefore, much effort is being made to develop advanced IGCC systems. However, removal of $CO_2$ prior to the gas turbine may affect the system performance and operation because the fuel flow, which is supplied to the gas turbine, is reduced in comparison with normal IGCC plants. This study predicts, through a parametric analysis, system performances of both an IGCC plant using normal syngas and a plant with $CO_2$ capture. Performance characteristics are compared and influence of $CO_2$ capture is discussed. By removing $CO_2$ from the syngas, the heating value of the fuel increases, and thus the required fuel flow to the gas turbine is reduced. The resulting reduction in turbine flow lowers the compressor pressure ratio, which alleviates the compressor surge problem. The performance of the bottoming cycle is not influenced much.
Keywords
IGCC; Gas Turbine; Syngas; CCS; Integration Degree; Nitrogen Recirculation;
Citations & Related Records
Times Cited By KSCI : 6  (Citation Analysis)
연도 인용수 순위
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