Technical Progress of Separating Cyclopentadiene and Methyl Cyclopentadiene from Steam Cracking C9 Fraction
The recent research related to the separation process of cyclopentadiene and methyl cyclopentadiene from C9 fraction,including the process from the depolymerization reaction to the atmospheric distillation,reactive distillation and extractive distillation,were reviewed.Especially the process from the depolymerization reaction to the distillation,the continuous process from the azeotropic distillation to the depolymerization reaction and to the normal distillation,and the continuous process from the vacuum distillation to depolymerization and to the atomospheric distillation were emphasized.Moreover,the operating conditions and technical advantages of these processes were also discussed.Besides,the development of polymerization inhibitor,the optimization of chemical process,and the industrial application of reactive distillation technology will become the directions of the separation of C9 fraction in the future.
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