叔丁醇催化精馏脱水制高纯度异丁烯中试研究  

Study on dehydration of tert-butyl alcohol to high purity isobutene by reactive distillation

作　　者：王艳飞 程中克 董炳利 周金波 李吉春 

机构地区：[1]中国石油兰州化工研究中心,甘肃兰州730060

出　　处：《应用化工》2013年第7期1224-1226,共3页Applied Chemical Industry

基　　金：中国石油科技管理部(2008B-3505)

摘　　要：采用大颗粒阳离子树脂催化剂,在Φ100 mm×4 100 mm的催化精馏中试装置上对叔丁醇脱水制异丁烯进行研究,考察操作压力、回流比、叔丁醇进料量和催化剂填装量对叔丁醇转化率的影响。结果表明,在操作压力0.39 MPa、回流比1.5、叔丁醇进料量4.32 L/h、催化剂填装量6 kg的条件下,叔丁醇转化率达98.12%,经分离后可以得到纯度为99.83%的异丁烯。Pilot-scale experiment for dehydration of tert-butyl alcohol to high purity isobutene was carried out by reactive distillation using large grain ion exchange resin catalyst in a Φ100 mm×4 100 mm reactor.Effects of operating pressure,reflux ratio,volume flow rate of tert-butyl alcohol and filling amount of catalyst on conversion of tert-butyl alcohol were studied.The results showed that the conversion of tert-butyl alcohol was 98.12% when operating pressure was 0.39 MPa,reflux ratio was 1.5,volume flow rate of tert-butyl alcohol was 4.32 L/h,and filling amount of catalyst was 6 kg.After distillation,the purity of isobutene was 99.83%.

关 键 词：叔丁醇 异丁烯 催化精馏 阳离子树脂催化剂 

分 类 号：TQ032.4[化学工程]