气相吸附分离间二氯苯  

A Process for Separating Meta-Dichlorobenzene under Vapor Phase by Adsorption

作　　者：孙尧俊[1] 郭国清[2] 王力平[1] 吴泰琉[1] 龙英才[3] 

机构地区：[1]复旦大学分析测试中心,上海200433 [2]北京燕山石化公司研究院,北京102500 [3]复旦大学化学系,上海200433

出　　处：《石油化工》2001年第3期178-181,共4页Petrochemical Technology

摘　　要：考察了在疏水硅沸石分子筛吸附剂S -I上 ,以水蒸气为脱附剂 ,从混合二氯苯中气相吸附分离间二氯苯的工艺条件。试验表明 ,较佳的条件为 :吸附温度 ( 193± 1)℃、空速 1 8h- 1 、脱附时间 5min。在脱附温度 ( 193± 1)℃、空速 1 6h- 1 、初级脱附时间 3min、二级脱附时间 2 7min时 ,间二氯苯单程收率不低于 3 0 %。Detailed studies were performed on the conditions of the process for separating meta dichlorobenzene from a mixture of dichlorobenzenes on the hydrophobic adsorbent S-I under vapor phase,where steam was employed as desorbent.Optimal conditions for the process are:temperature (193±1) ℃,GHSV 1.8 h -1 ,desorption time 5 min.At a desorption temperature of (193±1) ℃,GHSV 1.6 h -1 ,with a first stage desorption time of 3 min,and a second stage desorption time of 27 min,the yield of meta-dichlorobenzene is over 30%. [

关 键 词：无粘结剂吸附剂 间二氯苯 气相 吸附分离 脱附 

分 类 号：TQ242.1[化学工程—有机化工]