膜科学与技术

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PDMS/PVDF composite membrane for separation of VOC/N2 mixtures

Authors： HAN Qiu, ZHOU Haoli, LIU Gongping, JIN Wangqin*

Units： State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemistry and Chemical Engineering,

KeyWords： PDMS/PVDF composite membrane; VOC/N2 Separation; Stability

ClassificationCode：TQ028.8

year,volume(issue):pagination： 2015,35(1):75-81

Abstract：

Poly(dimethylsiloxane) (PDMS)/poly(vinylidenefluoride) (PVDF) composite membrane was prepared for the separation of n-hexane/nitrogen, cyclohexane/nitrogen and n-heptane/nitrogen mixtures. The effects of feed concentration, flow rate and operating temperature on the performance of the PDMS composite membrane were systematically studied. It was found that VOC permeance and separation factor increased with increasing feed VOC concentration and feed flow rate, while decreased with the increase of operating temperature. The PDMS/PVDF composite membranes exhibited good and stable performance during three months continuous operation, with n-heptane permeance and separation factor of 1.2*10-6mol/(s?m2?Pa) and 145, respectively.

Funds：

“教育部创新团队”(No. IRT13070) ；“江苏省优势学科”(PAPD)

AuthorIntro：

韩秋（1988-），女，山东菏泽人，硕士研究生，从事膜材料制备及应用研究。*通讯联系人，E-mail：wqjin@njtech.edu.cn

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