摘要
为了高效回收湿法气流床煤气化反应室出口的高温粗煤气的大量显热,提高系统的能量利用效率,采用废热锅炉间接换热回收显热。介绍了单废锅流程及双废锅流程2种湿法气流床废锅技术,从工艺过程、技术指标、热回收效率、综合能耗、投资及运行成本、运行情况等方面对流程进行对比。结果表明:单废锅流程及双废锅流程各有优缺点,当单纯用于IGCC发电时,优先采用双废锅流程,使能量利用效率最大化,当用于化工合成联合IGCC发电时,应优先采用单废锅流程。
In order to recycle abundant sensible heat of high temperature raw gas from outlet of reaction chamber for wet entrained flow coal gasification efficiently,and improve energy utilization efficiency of system,a waste heat boiler was adopted for indirect heat exchange to recycle the sensible heat. Two types of wet entrained flow gasification technologies including single waste heat boiler process and double waste heat boiler process were described. The two technologies were compared from the aspects of technological process,technical index,heat recovery efficiency,comprehensive energy consumption,investment and operating cost,operating condition and others. The results showed that,when used alone for IGCC power generation,the double waste heat boiler process was preferred to maximize the efficiency of the energy use,when used in chemical synthesis combined with IGCC power generation,the single waste heat boiler process was a better choice.
出处
《洁净煤技术》
CAS
2016年第3期108-111,115,共5页
Clean Coal Technology
关键词
湿法气流床气化
激冷流程
单废锅流程
双废锅流程
wet entrained flow gasification
quenching process
single waste heat boiler process
double waste heat boiler process
