COS Hydrolysis Process of Desulfurization System for IGCC Power Plants

doi:10.11930/j.issn.1004-9649.2013.4.93.4

Abstract

Abstract: The COS hydrolysis system of gas purification in one integrated gasification combined cycle(IGCC) power plant is introduced. Through the optimization of the startup modes and operating conditions of the COS hydrolysis system, the best operating condition is determined from experimental researches, i.e., 180 ℃ of the layer temperature of the COS hydrolysis, 1451 h^-1 of the space velocity, and the temperature of raw coal gas at the process gas cooler outlet between 50 and 60℃. Operated under this condition, the COS hydrolysis conversion rate can reach 92.5%. In addition, the common issues in the operation of the COS hydrolysis system are analyzed, which concludes that the oxygen and water vapor contents of the raw coal gas shall be strictly controlled.

Key words: IGCC power plant, desulfurization system, COS, COS hydrolysis system, sulfurization

CLC Number:

TK08

ZHANG Rui-xiang, GAO Jing-hui, LING Tong-tong, ZHU Sheng-bao. COS Hydrolysis Process of Desulfurization System for IGCC Power Plants[J]. Electric Power, 2013, 46(4): 93-97.

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URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.1004-9649.2013.4.93.4

https://www.electricpower.com.cn/EN/Y2013/V46/I4/93

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