摘要
介绍了国能榆林化工有限公司1.8 Mt·a^(-1)级庄信万丰大型Davy工艺甲醇合成装置的催化剂更换过程,对系统气体置换、催化剂钝化、卸出、清理与装填过程中遇到的问题进行原因分析,并根据现场应用情况提出优化措施与建议,以便合理地规避各个过程中的风险和保证开车时合成塔阻力降达标。提出的优化措施已在国能榆林、国能新疆、国能包头等几家同级别装置实行,能够解决大部分催化剂更换过程中出现的问题,为国内同级别装置提供一定参考。
The catalyst replacement process of the 1.8 Mt·a-1 Johnson Matthey large-scale Davy process methanol synthesis plant at Yulin Chemical Industry Co.,Ltd.,National Energy Group is described.The causes of the problems encountered in the process of system gas replacement,catalyst passivation,unloading,cleaning and loading are analysed,and optimisation measures and suggestions are put forward based on the field application,so as to reasonably avoid the risks of the various processes and to ensure the resistance drop of the synthesis tower at start-up is up to the standard.The proposed optimisation measures have been implemented in several plants of the same class,such as Yulin Chemical Co.,Ltd.,Xinjiang Chemical Co.,Ltd.,Baotou Chemical Co.,Ltd.,which can solve most of the problems during catalyst changeover,and provide a certain reference for domestic plants of the same class.
作者
倪昂
曾伟
惠武卫
周飞
NI Ang;ZENG Wei;HUI Wuwei;ZHOU Fei(Yulin Chemical Industry Co.,Ltd.,National Energy Group,Yulin 719000,Shaanxi,China;Southwest Chemical Research and Design Institute Co.,Ltd.,Chengdu 610000,Sichuan,China)
出处
《工业催化》
2025年第8期75-80,共6页
Industrial Catalysis
关键词
有机化学工程
甲醇合成
催化剂
飞温
阻力降
oganic chemical engineering
methanol synthesis
catalyst
temperature flying
resistance reduction
