华能煤气化技术激冷气系统改造研究  被引量:1

Study on Quench Gas System Renovation of Huaneng Coal Gasification Technology

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作  者:柳康[1,2] 李广宇 董少龙[1,2] Liu Kang;Li Guangyu;Dong Shaolong(China Huaneng Clean Energy Research Institute, Beijing 102209, China;State Key Laboratory of Coal-based Clean Energy, Beijing 102209, China)

机构地区:[1]中国华能集团清洁能源技术研究院有限公司,北京102209 [2]煤基清洁能源国家重点实验室,北京102209

出  处:《煤化工》2018年第1期65-68,共4页Coal Chemical Industry

基  金:国家科技支撑计划项目(2014BAA05B01)

摘  要:我国首套商业运营的IGCC电站配套的华能全热回收干煤粉气化系统中,存在激冷气量大、管线腐蚀严重、煤气冷却器入口积灰风险较大等问题,为此对气化系统进行了技术改造,并对改造前后的激冷煤气流量、湿洗单元煤气流量及铵盐结晶情况进行了对比。结果表明,激冷气全部改用水洗后的合成气,降低了煤气冷却器入口温度,节省了激冷气量,减少了铵盐结晶的风险,对维护系统稳定运行具有指导意义。To solve high quench gas flow rate,serious pipeline corrosion,high risk of ash deposition at gas cooler inlet in Huaneng full heat recovery dry pulverized coal gasification system of China's first commercial IGCC power station,technical renovation of the gasification system was carried out. Comparison of quench gas flow rate,scrubber unit syngas flow rate and ammonium salt crystallization before and after the renovation was made. The results showed that when the quench gas was changed into syngas after the scrubber unit,the gas cooler inlet temperature was decreased,quench gas flow rate was lower,and the risk of ammonium salt crystallization was reduced. Thus,the renovation was of great significance for stable and reliable operation of the system.

关 键 词:华能煤气化 干煤粉 合成气冷却器 全热回收 激冷气 积灰 

分 类 号:TQ546[化学工程—煤化学工程]

 

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