Matching optimization of between air separation unit and gas turbine in IGCC system

Huadian Technology ›› 2012, Vol. 34 ›› Issue (6): 13-15.

• 研究与开发 • Previous Articles Next Articles

Matching optimization of between air separation unit and gas turbine in IGCC system

ZHANG Dongxiao1, CHEN Xiaoli2,3, WU Shaohua2, LI Zhenzhong3

1.China Huadian Corporation, Beijing 100031, China; 2.School of Energy Science and Engineering, Harbin Institute of Technology, Harbin 150001, China; 3.National Power Plant Combustion Research Center, Shenyang 110034, China

Received:1900-01-01 Revised:1900-01-01 Online:2012-06-25 Published:2012-06-25

Abstract

Abstract: The model of integrated gasification combined cycle (IGCC) was established by ThermoFlex software. The influences of air separation unit integrated coefficient (Xas) and nitrogen reinjection coefficient (Xgn) on the system performance were studied in detail under the different ASU pressures. The results show that the net efficiency of IGCC system increases as the increase of Xas at the high ASU pressure, but the net efficiency decreases as the increase of Xas at the low ASU pressure. Low ASU pressure is not suitable at Xas=0. As Xgn increasing, the net efficiency of IGCC system increases firstly and then decreases both at the high and low ASU pressure. The gas turbine emissions requirement on NOx can be satisfied when the low Xgn and ASU pressure are applied.

Key words: integrated gasification combined cycle (IGCC), gas turbine, air separation unit integrated coefficient (Xas), nitrogen reinjection coefficient (Xgn), air separation unit (ASU) pressure

ZHANG Dongxiao;CHEN Xiaoli;;WU Shaohua;LI Zhenzhong. Matching optimization of between air separation unit and gas turbine in IGCC system[J]. Huadian Technology, 2012, 34(6): 13-15.

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Matching optimization of between air separation unit and gas turbine in IGCC system

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