Patent ID: 11905242
Assignee: ZEON CORPORATION
Field: Chemical engineering (Chemistry)
Classification: CPC C  B | IPC B  C

Claim 0:
1. A method of producing piperylene from a hydrocarbon mixture that is derived from a petroleum fraction having a carbon number of 5, wherein
the hydrocarbon mixture has a piperylene proportional content of not less than 60 mass % and not more than 80 mass % and a cyclic hydrocarbon proportional content of not less than 20 mass % and not more than 40 mass %, and
the method comprises a membrane separation step of performing membrane separation of the hydrocarbon mixture using a zeolite membrane, having a silyl group originated from a silylating agent including at least one of hexamethyldisilazane, trimethylchlorosilane, and dimethyldichlorosilane, to obtain a separated product in which piperylene is enriched.