中国电力 ›› 2013, Vol. 46 ›› Issue (4): 93-97.DOI: 10.11930/j.issn.1004-9649.2013.4.93.4

• 节能与环保 • 上一篇    下一篇

IGCC电站脱硫系统中的羰基硫水解工艺

张瑞祥1, 高景辉1, 令彤彤1, 朱声宝2   

  1. 1. 西安热工研究院有限公司,陕西 西安 710032;
    2. 绿色煤电有限公司,北京 100098
  • 收稿日期:2012-10-15 出版日期:2013-04-05 发布日期:2015-12-14
  • 作者简介:张瑞祥(1981—),男,江苏扬中人,工程师,主要从事电厂化学与环保系统调试及研究。E-mail: zhangruixiang@tpri.com.cn

COS Hydrolysis Process of Desulfurization System for IGCC Power Plants

ZHANG Rui-xiang1, GAO Jing-hui1, LING Tong-tong1, ZHU Sheng-bao2   

  1. 1. Thermal Power Research Institute Co. Ltd., Xi’an 710032, China;
    2. Greengen Co. Ltd., Beijing 100098, China
  • Received:2012-10-15 Online:2013-04-05 Published:2015-12-14

摘要: 介绍某IGCC(整体煤气化联合循环)电站净化单元脱硫系统中羰基硫(COS)水解器的水解工艺。对COS水解器的启动方式和运行工况进行优化,在试验研究的基础上给出了COS水解器运行的最佳条件:床层温度180 ℃,空速1 451 h-1,工艺气冷却器出口原料气温度50~60 ℃。在此工况下运行,COS水解转化率可达92.5%。此外,分析COS水解器运行中常见问题,指出必须严格控制原料气中氧气和水蒸气的含量。

关键词: IGCC电站, 脱硫系统, 羰基硫(COS), 羰基硫水解器, 硫化

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

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