从裂解C9馏分中分离环戊二烯和甲基环戊二烯的研究  

Separation of Cyclopentadiene and Methylcyclopentadiene from Cracking C_9 Fraction

作　　者：李爱元[1] 施立钦[1] 孙向东[1,2] 王斌 张慧波[1] 

机构地区：[1]宁波职业技术学院化工系,浙江宁波315800 [2]浙江恒河石油化工股份有限公司,浙江宁波315023

出　　处：《石油化工》2013年第11期1213-1217,共5页Petrochemical Technology

基　　金：宁波市重大科技攻关择优委托项目

摘　　要：以裂解C9馏分为原料,采用解聚-蒸馏法、解聚-精馏法、解聚-精馏-分离法进行分离环戊二烯(CPD)和甲基环戊二烯(MCPD)的实验。考察分离方法、操作条件对CPD和MCPD的纯度和收率的影响。实验结果表明,解聚-蒸馏法,只能获得高纯度的CPD,纯度达99.8%(w);解聚-精馏法,可以同时获得高纯度的CPD和中等纯度的MCPD,CPD纯度达99.2%(w),MCPD纯度达46.1%(w);解聚-精馏-分离法分离效果最好,CPD纯度达99.4%(w),收率达92.6%(w),且MCPD纯度达93.7%(w),MCPD收率达89.6%(w)。Cyclopentadiene（CPD） and methylcyclopentadiene（MCPD） were separated from cracking C9 fraction by three separation methods, namely depolymerization-distillation, depolymerization- rectification and depolymerization-rectification-monomer separation. The effects of the separation methods and operational conditions on the purity and yield of CPD and MCPD were investigated. The results showed that, only CPD could be obtained by the depolymerization-distillation and its purity could reach 99.8%（w）; when the depolymerization-rectification method was used, both CPD with high purity and MCPD with medium purity could be obtained, and their purities could reach 99.2%（w） and 46.1%（w）, respectively; the best method was series connection of depolymerization-rectification and monomer separation, and their purity could reach 99.4%（w） and 93.7%（w）, their yield could reach 93.6%（w） and 89.6%（w）, respectively.

关 键 词：环戊二烯 甲基环戊二烯 裂解C9馏分 分离 

分 类 号：TQ028[化学工程]