聚合级乙烯净化催化剂的工业应用  

Commercial Application of Three Catalysts for Purification of Polymer-Grade Ethylene

作　　者：王桂英[1] 彭晖[1] 顾申[1] 余启炎[1] 朱警[1] 戴伟[1] 

机构地区：[1]中国石油化工股份有限公司北京化工研究院,北京100013

出　　处：《石油化工》2007年第9期944-947,共4页Petrochemical Technology

摘　　要：开发了用于脱除聚合级乙烯中的微量乙炔和H2的BC-I-037G催化剂和BC-I-HC40催化剂,用于脱除微量CO的BR-9201催化剂,并已在工业装置中得到应用。BC-I-037G催化剂和BC-I-HC40催化剂在乙烯空速2000～6000h-1、压力2.6～3.5MPa、温度20～50℃、n(H2)∶n(乙炔)<4和BR-9201催化剂在乙烯空速3000～3500h-1、反应压力0.1～3.0MPa、反应温度90～120℃的操作条件下,可使乙烯中乙炔的质量分数由(1～6)×10-6降至小于1×10-7、H2的质量分数由1×10-4降至小于1×10-6、CO的质量分数由(2～5)×10-6降至小于1×10-7。3种催化剂工业装置的应用结果表明,催化剂性能稳定,可操作范围宽,能满足工业装置的工艺要求。Commercial catalysts BC - I - 037G and BC - I - HC40 for removal of acetylene and hydrogen, and commercial catalyst BR -9201 for removal of carbon monoxide from ethylene were developed for purification of polymer - grade ethylene. Under appropriate conditions： ethylene space velocity 2 000 -6 000 h-1, reaction pressure 2.6 -3.5 MPa, temperature 20 -50℃, and n（ H2 ） ： n （C2 ） 〈 4, the mass fractions of acetylene and hydrogen in feedstock ethylene can be lowered from （1 -6）×10^-6 to less than 1×10^-7 and from 1 ×10^-4 to less than 1 ×10^-6 respectively by using the BC -I -037G and BC -I -HC40 catalysts. The catalyst can be used for about 3 years. As concerning catalyst BR- 9201, under appropriate conditions： ethylene space velocity 3 000 -3 500 h^-1, reaction pressure 0.1 -3.0 MPa and temperature 90 - 120 0（2, mass fraction of carbon monoxide in ethylene can be reduced from （2 -5） ×10^-6 to less than 1 ×10^-7. The catalyst can be used for about 3 -5 years. The results of purification of all three commercial catalysts above can perfectly meet the requirements of ethylene for polymerization.

关 键 词：乙烯净化催化剂 乙炔 氢气 一氧化碳 聚合级乙烯 

分 类 号：TQ221.211[化学工程—有机化工]