Hostalen工艺HDPE装置反应器进水原因分析及对策  

Analysis and countermeasures of water ingress in the HDPE reactor of Hostalen process

作　　者：岳永双 杨城 Yue Yongshuang;Yang Cheng(Sinopec,Hainan Refining&Chemincal Co.,Ltd Hainan Danzhou 578001)

机构地区：[1]中国石化海南炼油化工有限公司,海南儋州578001

出　　处：《石化技术》2024年第1期6-8,共3页Petrochemical Industry Technology

摘　　要：水会与三乙基铝、催化剂发生反应,导致三乙基铝饥饿和催化剂失活,严重影响装置稳定生产。针对对Hostalen工艺高密度聚乙烯(HDPE)装置工艺流程进行了介绍,分析罗列了可能导致反应器进水的潜在风险点;结合某装置出现过的案例,详细叙述了聚合反应系统催化剂失活时和活性恢复后的工艺表现,分析得出催化剂失活的原因是闪蒸罐后冷器的结冰融化后进入反应系统所致;并针对聚合系统进水情况提出了应急处理措施和预防措施。Water will react with triethyl aluminum and catalyst,resulting in triethyl eading to triethyl aluminum starvation and catalyst deactivation,which seriously affects the stable production of the plant.This paper introduces thetechnological process of Hostalen HDPE Plant,and analyzes and lists the potential risk points that maymay cause water ingress into the reactor.Based on the actual case of a factory,the process performance of polymerization reaction system was described in detail when the catalyst is deactivated and after the activity is restored.The analytic results show that the reason of catalyst deactivation was due to the melting of ice in theflash tank aftercooler and its entry into the reaction system.Emergency response measures and preventive measures have been proposed for the water water ingress into the polymerization system.

关 键 词：水 催化剂 Hostalen 反应器 

分 类 号：TQ325.12[化学工程—合成树脂塑料工业]