甲醇合成催化剂使用周期短的原因分析  

Cause Analysis for Methanol Catalyst Rapid Deactivation

作　　者：李红 Li Hong(Pucheng Clean Energy Chemical Co.,Ltd.,Pucheng Shaanxi 715500,China)

机构地区：[1]蒲城清洁能源化工有限责任公司,陕西蒲城715500

出　　处：《煤化工》2018年第A01期73-75,共3页Coal Chemical Industry

摘　　要：介绍了蒲城清洁能源化工有限公司甲醇合成工艺流程和存在问题,分析了甲醇合成催化剂使用周期缩短的原因:(1)装置运行初期工况不稳定;(2)预反应器催化剂快速失活,使合成塔催化剂负荷过高。通过对卸出预反应器催化剂检验分析及与同类装置设备结构对比,得出预反应器催化剂快速失活的原因是工艺气含羰基铁、催化剂硫中毒、石蜡影响、预反应器分布器设计不合理。就以上问题针对性提出了改造措施,对延长催化剂使用周期,提升装置运行水平有一定的借鉴意义。The methanol synthesis process and existing problems of PCEC were introduced,analyzing the reasons of catalyst short-lifetime in Pucheng methanol plant:(1)unstable initial operating condition of methanol plant;(2)too high catalyst load of synthesis tower which was caused by rapid catalyst deactivation of pre-reactor.According to the test analysis of catalyst discharged from pre-reactor and comparing the equipment structure of similar plants,the reasons for catalyst rapid deactivation in pre-reactor were carbonyl iron contained in process gas,sulfur poisoning,influence from paraffin,and improper design of pre-reactor distributor.The corresponding renovation measures on the above problems were proposed,which could be of certain reference for extending catalyst lifetime and improving plant operation level.

关 键 词：甲醇合成 预反应器 催化剂 失活 

分 类 号：TQ223.121[化学工程—有机化工]