Application of Interfacial Polymerization in Defect Reparation of ZSM-5 Zeolite Membranes

化学工业与工程

Chemcial Industry and Engineering

2016, Vol. 33

Issue (5) :62-67 DOI: 10.13353/j.issn.1004.9533.20141144

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Application of Interfacial Polymerization in Defect Reparation of ZSM-5 Zeolite Membranes

Liu Xiufeng, Cao Xiuxiu, Li Jian, Zhang Baoquan

School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China

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Abstract

A novel interfacial polymerization method was proposed for selective reparation of ZSM-5 zeolite membranes. Trimesoyl chloride(TMC) and m-phenylenediamine(MPDA) would be contacted at the defect areas on the membrane surface, leading to the formation of porous and hydrophilic materials by polymerization. After reparation, the defects concentrated below 0.6 nm were in the microporous scale and smaller than 1.0 nm. The separation factor for 5% C₂H₅OH/H₂O was increased from 1.1 to 16.0 with the permeation flux of 1.0 kg/(m²·h) and higher.

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	Articles by authors
	Liu Xiufeng
	Cao Xiuxiu
	Li Jian
	Zhang Baoquan

Keywords： interfacial polymerization； zeolite membrane； selective reparation； separation

Received 2014-09-24;

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Liu Xiufeng, Cao Xiuxiu, Li Jian, Zhang Baoquan.Application of Interfacial Polymerization in Defect Reparation of ZSM-5 Zeolite Membranes[J] Chemcial Industry and Engineering, 2016,V33(5): 62-67

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