壳牌煤气化工艺堵渣原因及分析  

Causes and Analysis of Slag Plugging in Shell Coal Gasification Process

作　　者：杨晨 薛永兵[1] 刘振民[1] 郭旗 马嘉森 YANG Chen;XUE Yong-bing;LIU Zhen-min;GUO Qi;MA Jia-sen(College of Chemistry and Bioengineering,Taiyuan University of Science and Technology,Taiyuan Shanxi 030021,China)

机构地区：[1]太原科技大学化学与生物工程学院,山西太原030021

出　　处：《当代化工》2023年第7期1735-1738,1743,共5页Contemporary Chemical Industry

基　　金：山西省重点研发计划基金项目(项目编号:201903D121025);山西省研究生优秀创新项目(项目编号:2022Y707)。

摘　　要：近年来,由于煤气化技术得到了越来越多的普及,壳牌粉煤加压气流床气化技术作为典型的煤气化技术之一,在运行过程中存在堵渣、合成气冷却器积灰等的难题制约着装置的长周期稳定运行。针对壳牌煤气化工艺的堵渣问题,从煤气化工艺的反应原理、气化装置的流程、渣层的形成、堵渣的现象及判断依据、粉煤的熔融特性、气化炉的炉温、气化炉反应热区下移等方面进行分析研究。In recent years,due to the increasing popularity of coal gasification technology,Shell pulverized coal pressurized gas bed gasification technology is one of the typical coal gasification technologies,lag plugging,syngas cooler ash accumulation and other problems in the operation process restrict the long-term stable operation of the device.In this paper,the problem of slag plugging in Shell coal gasification process was analyzed and studied from the aspects of reaction principle of coal gasification process,process of gasification device,formation of slag layer,phenomenon and judgment basis of slag plugging,melting characteristics of pulverized coal,furnace temperature of gasifier,and downward movement of reaction heat zone of gasifier.

关 键 词：壳牌煤气化 渣的形成机理 熔融特性 反应热区下移 

分 类 号：TQ546[化学工程—煤化学工程]