Study on different zero CO2 emission IGCC systems with CO2 capture by integrating OTM. (1st April 2016)

• Record Type: Journal Article
• Authors: Duan, Liqiang; Sun, Siyu; Yue, Long; Qu, Wanjun; Bian, Jing
• Is Part Of: International journal of energy research. Volume 40:Number 10(2016)
• Page Start: 1410
• Page End: 1427
• Publication Date: 2016-04-01
• Subjects: IGCC -- OTM -- oxy‐fuel combustion -- CO2 capture -- system integration; Power resources -- Periodicals; Power (Mechanics) -- Periodicals; Power resources -- Research -- Periodicals; 621.042
• DOI: 10.1002/er.3533
• Languages: English
• ISSNs: 0363-907X

Abstract

Summary: 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.