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- Title
Study on different zero CO<sub>2</sub> emission IGCC systems with CO<sub>2</sub> capture by integrating OTM.
- Authors
Duan, Liqiang; Sun, Siyu; Yue, Long; Qu, Wanjun; Bian, Jing
- Abstract
In this paper, different zero CO2 emission integrated gasification combined cycle (IGCC) systems based on the oxy-fuel combustion method by integrating with oxygen ion transfer membrane (OTM) with and without sweep gas are proposed in order to reduce the energy consumption of CO2 capture. By utilizing the Aspen Plus software, the overall system models are established. The performances of the proposed systems are compared with the traditional IGCC system without CO2 capture and the zero CO2 emission IGCC system based on the oxy-fuel combustion method using the cryogenic air separation unit. In addition, the effects of OTM key parameters on the proposed system performance, such as the feed side pressure, permeate side pressure, and operating temperature, are investigated and analyzed. The results show that the efficiency of the zero CO2 emission IGCC system based on the oxy-fuel combustion method integrated with OTM without sweep gas is 6.67% lower than that of the traditional IGCC system without CO2 capture, but 1.88% higher than that of the zero CO2 emission IGCC system using the cryogenic air separation unit, and 0.64% lower than that of the proposed system with sweep gas. The research achievements will provide valuable references for further study on CO2 capture based on IGCC with lower energy penalty. Copyright © 2016 John Wiley & Sons, Ltd.
- Subjects
CARBON dioxide mitigation; CARBON sequestration; INTEGRATED gasification combined cycle power plants; ENERGY transfer; OXYGEN; COMBUSTION
- Publication
International Journal of Energy Research, 2016, Vol 40, Issue 10, p1410
- ISSN
0363-907X
- Publication type
Article
- DOI
10.1002/er.3533