UNIPOL工艺聚乙烯装置尾气回收技术改造和应用效果  

Technical Renovation and Application Effect of Tail Gas Recovery System for Polyethylene Plant With UNIPOL Process

作　　者：王勇[1] 崔宝静 唐雷 刘玲[1] 张哲诚 刘左焕 张姝婉 WANG Yong;CHU Bao-jing;TANG Lei;LIU Ling;ZHANG Zhe-cheng;LIU Zuo-huan;ZHANG Shu-wan(PetroChina Fushun Petrochemical Company,Fushun Liaoning 113004,China)

机构地区：[1]中国石油天然气股份有限公司抚顺石化分公司,辽宁抚顺113004

出　　处：《当代化工》2020年第6期1237-1240,1244,共5页Contemporary Chemical Industry

摘　　要：UNIPOL工艺聚乙烯装置在日常的生产活动中,由脱气仓对黏附在树脂上的烃类进行脱除,由脱气仓排出的气体进入到排放气压缩机系统,经过二级压缩冷却,将部分烃类气体回收,但其中仍含有烃类气体未能完全回收,而且由于这部分烃类导致以氮气为主的这部分气体只能排放至火炬而无法回收利用,通过尾气回收技术改造,可以进一步回收烃类气体,并将氮气提纯回收利用。The hydrocarbons adhering to the resin are removed by degassing warehouse in the operation of the UNIPOL process polyethylene device,the exhaust gas from the degassing warehouse is transported into the air compressor system,part of hydrocarbon gas is recovered through the secondary compression and cooling.But hydrocarbon gas cannot be completely recycled,and unrecovered hydrocarbon gas causes that nitrogen has to discharge to the torch,and cannot be recycled.Through technology transformation of the tail gas recovery system,more of the hydrocarbon gases can be recovered,and nitrogen can also be recycled.

关 键 词：聚乙烯 尾气 膜回收 深冷回收 

分 类 号：TQ03-39[化学工程] X783.2[环境科学与工程—环境工程]