乙基叔丁基醚/β分子筛膜反应精馏  

ETBE REACTIVE DISTILLATION ON SUPPORTED β ZEOLITE MEMBRANE

作　　者：余少兵[1] 李永红[1] 陈洪钫[1] 

机构地区：[1]天津大学化工系,天津300072

出　　处：《石油学报（石油加工）》2003年第5期58-62,共5页Acta Petrolei Sinica(Petroleum Processing Section)

基　　金：中国石油化工集团公司资助项目(X596040)

摘　　要：研究了混合碳四和乙醇合成乙基叔丁基醚(ETBE)的反应精馏过程。实验以支撑β分子筛膜为催化精馏元件,异丁烯转化率高达95％,回流比和醇烯摩尔比是影响异丁烯转化率的主要因素。与甲基叔丁基醚(MTBE)的反应精馏过程相比,以乙醇取代甲醇,只需对MTBE生产的操作条件作一些简单的调整,就可在其生产装置上合成ETBE。Reactive distillation of synthesizing ethyl tertiary-butyl ether (ETBE) from C4 cuts and ethanol was investigated, in which the structured packing coated with β zeolite was used as catalyst. Almost 95% isobutene conversion was achieved, and reflux ratio and molar ratio of ethanol to isobutene were the significant process variables. With reference of MTBE reactive distillation process, the results suggests the possibility that the equipment for producing MTBE can be adopted to produce ETBE by using ethanol as the raw material instead of methanol with proper adjustment of operation variables.

关 键 词：乙基叔丁基醚 β分子筛膜 反应精馏 汽油添加剂 

分 类 号：TE624.81[石油与天然气工程—油气加工工程] TE626.21