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Li A.,Ningbo Professional and Technical College | Shi L.,Ningbo Professional and Technical College | Sun X.,Ningbo Professional and Technical College | Sun X.,Zhejiang Henghe Petrochemical Co. | And 2 more authors.
Shiyou Huagong/Petrochemical Technology | Year: 2013

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. Source


Sun X.-D.,Ningbo Professional and Technical College | Shi L.-Q.,Ningbo Professional and Technical College | Li A.-Y.,Ningbo Professional and Technical College | Chen Y.-D.,Ningbo Professional and Technical College | Xu D.-J.,Ningbo Professional and Technical College
Xiandai Huagong/Modern Chemical Industry | Year: 2013

The comprehensive utilization of C5 resource as by-product of methanol to olefin process is reviewed. The compositions, separation technologies and utilization means of C5 olefin are introduced. Reaction principle, process flow and industrialization of producing ethylene, propylene, BTX, modified petroleum resin, 1-pentene, TAME and isoamylenes from the C5 resource are discussed. Several programs for utilization of C5 resource are compared. The results show that the best utilization way is to produce modified petroleum resin, 1-pentene, TAME, isoamylenes. Source

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