小型热虹吸环流反应器中丙烯环氧化工艺条件  

EPOXIDATION OF PROPYLENE IN SMALL-SCALE THREE-PHASE LOOP THERMOSYPHONIC REACTOR

作　　者：陈晓晖[1] 李世军[1] 陈宪[2] 米镇涛[1] 许锡恩[1] 

机构地区：[1]天津大学化工学院,天津300072 [2]福州大学化学系,福建福州350002

出　　处：《化工学报》2001年第1期85-87,共3页CIESC Journal

基　　金：国家自然科学基金;中国石化总公司联合资助重大基金项目!(No.2 9792 0 70 )

摘　　要：The influences of temperature, pressure, catalyst content, H 2O 2 content and mol ratio of propylene to H 2O 2 on epoxidation of propylene with H 2O 2 over TS-1 in a small-scale three phase loop thermosphonic reactor were investigated. The proper reaction condition was determined as follows: mol ratio of propylene to H 2O 2 was 1.1—1.3, temperature was 30—45?℃, reaction temperature rise was below 15?℃, pressure was 0—0.1?MPa, catalyst content was 3%—6%,and H 2O 2 content was 3%—5%.The conversion of H 2O 2 is above 94%,and selectivity of propylene is up to 96%. At these conditions, the yield of PO is higher than a figure of about 80%,which is achieved using conventional reactor. This reactor can realize catalyst regeneration continuously. This viable reactor can also be applied in other oxidation processes using TS-1, i.e. hydroxylation of phenol, ammoxidation of cyclohexanone.The results will lay a foundation for the development of the reactor in propylene epoxidation process.The influences of temperature, pressure, catalyst content, H 2O 2 content and mol ratio of propylene to H 2O 2 on epoxidation of propylene with H 2O 2 over TS-1 in a small-scale three phase loop thermosphonic reactor were investigated. The proper reaction condition was determined as follows: mol ratio of propylene to H 2O 2 was 1.1—1.3, temperature was 30—45?℃, reaction temperature rise was below 15?℃, pressure was 0—0.1?MPa, catalyst content was 3%—6%,and H 2O 2 content was 3%—5%.The conversion of H 2O 2 is above 94%,and selectivity of propylene is up to 96%. At these conditions, the yield of PO is higher than a figure of about 80%,which is achieved using conventional reactor. This reactor can realize catalyst regeneration continuously. This viable reactor can also be applied in other oxidation processes using TS-1, i.e. hydroxylation of phenol, ammoxidation of cyclohexanone.The results will lay a foundation for the development of the reactor in propylene epoxidation process.

关 键 词：丙烯 环氧化 过氧化氢 热虹吸环流反应器 环氧丙烷 生产工艺 

分 类 号：TQ223.26[化学工程—有机化工]