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Research on the Fabrication and Gas Separation Performance of NaY Zeolite Hybrid Carbon Membranes

Authors： LI Xinming, HUANG Heming, WU Yonghong, ZHANG Bing，WANG Tonghua

Units： 1. School of Petrochemical Engineering, Shenyang University of Technology, Liaoyang 111003, Liaoning, China; 2. School of Chemical Engineering, Dalian University of Technology, Dalian 116024, Liaoning, China

KeyWords： Zeolite; Carbon membrane; Gas separation; polyimide

ClassificationCode：TQ028.8

year,volume(issue):pagination： 2021,41(3):24-28

Abstract：

Hybrid carbon membranes were prepared using polyimide as precursor and NaY type zeolite as dopant via membrane formation and carbonization. The structure and property of membrane samples were characterized by scanning electron microscope, X-ray diffraction, thermogravimetric analysis and infrared spectroscopy. The influences of dopant amount, permeation temperature and permeation pressure on the structure or gas separation performance of carbon membrane were investigated. The results show that the hybrid carbon membrane shows increased permeability at the premise of keeping high O2/N2 selectivity, as compared with pure carbon membrane. Meanwhile, the permeability increases with elevating the zeolite content in membrane. When hybrid carbon membrane were prepared by the carbonization temperature of 650℃ and zeolite content of 0.5%, the O2 permeability reaches to 79.5 Barrer, together with O2/N2 selectivity of 7.5.

Funds：

国家自然科学基金（21776033、21878033），辽宁省百千万人才项目（2018921046），辽宁省教育厅科研项目（LJGD2020002），沈阳市科技创新人才项目（RC200325）

AuthorIntro：

李欣明（1996-），女，辽宁锦州人，硕士研究生，从事分离膜材料制备研究工作

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