Pervaporation dehydration of ethylene glycol by NaA zeolite membranes

Congli Yu; Chao Zhong; Yanmei Liu; Xuehong Gu; Gang Yang; Weihong Xing; Nanping Xu

doi:10.1016/j.cherd.2011.12.003

Pervaporation dehydration of ethylene glycol by NaA zeolite membranes

Congli Yu, Chao Zhong, Yanmei Liu, Xuehong Gu, Gang Yang, Weihong Xing, Nanping Xu

College of Chemical Engineering

Nanjing Tech University

Research output: Contribution to journal › Article › peer-review

45 Scopus citations

Abstract

Home-made NaA zeolite membranes were used for pervaporation dehydration of ethylene glycol (EG)/water mixtures. Hydrothermal stability of the membranes in pervaporation was investigated for industrial application purpose. The membranes exhibited good stability for water content of less than 20wt.% at 100°C. The reduction of operating temperature was effective to improve membrane stability for operating at high feed water content (e.g. 30wt.%). The influence of feed water content and operating temperature on dehydration of EG was extensively investigated. A permeation flux of 4.03kgm ^-2h ^-1 with separation factor of >5000 was achieved at 120°C for the separation of the solution with 20wt.% water content. A pilot-scale pervaporation facility with membrane area of 3m ² was built up for dehydration of EG with the water content of 20wt.%, which showed technical feasibility for industrial application.

Original language	English
Pages (from-to)	1372-1380
Number of pages	9
Journal	Chemical Engineering Research and Design
Volume	90
Issue number	9
DOIs	https://doi.org/10.1016/j.cherd.2011.12.003
State	Published - Sep 2012

Keywords

Dehydration
Ethylene glycol
NaA zeolite membranes
Pervaporation

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10.1016/j.cherd.2011.12.003

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title = "Pervaporation dehydration of ethylene glycol by NaA zeolite membranes",

abstract = "Home-made NaA zeolite membranes were used for pervaporation dehydration of ethylene glycol (EG)/water mixtures. Hydrothermal stability of the membranes in pervaporation was investigated for industrial application purpose. The membranes exhibited good stability for water content of less than 20wt.% at 100°C. The reduction of operating temperature was effective to improve membrane stability for operating at high feed water content (e.g. 30wt.%). The influence of feed water content and operating temperature on dehydration of EG was extensively investigated. A permeation flux of 4.03kgm -2h -1 with separation factor of >5000 was achieved at 120°C for the separation of the solution with 20wt.% water content. A pilot-scale pervaporation facility with membrane area of 3m 2 was built up for dehydration of EG with the water content of 20wt.%, which showed technical feasibility for industrial application.",

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author = "Congli Yu and Chao Zhong and Yanmei Liu and Xuehong Gu and Gang Yang and Weihong Xing and Nanping Xu",

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T1 - Pervaporation dehydration of ethylene glycol by NaA zeolite membranes

AU - Yu, Congli

AU - Zhong, Chao

AU - Liu, Yanmei

AU - Gu, Xuehong

AU - Yang, Gang

AU - Xing, Weihong

AU - Xu, Nanping

PY - 2012/9

Y1 - 2012/9

N2 - Home-made NaA zeolite membranes were used for pervaporation dehydration of ethylene glycol (EG)/water mixtures. Hydrothermal stability of the membranes in pervaporation was investigated for industrial application purpose. The membranes exhibited good stability for water content of less than 20wt.% at 100°C. The reduction of operating temperature was effective to improve membrane stability for operating at high feed water content (e.g. 30wt.%). The influence of feed water content and operating temperature on dehydration of EG was extensively investigated. A permeation flux of 4.03kgm -2h -1 with separation factor of >5000 was achieved at 120°C for the separation of the solution with 20wt.% water content. A pilot-scale pervaporation facility with membrane area of 3m 2 was built up for dehydration of EG with the water content of 20wt.%, which showed technical feasibility for industrial application.

AB - Home-made NaA zeolite membranes were used for pervaporation dehydration of ethylene glycol (EG)/water mixtures. Hydrothermal stability of the membranes in pervaporation was investigated for industrial application purpose. The membranes exhibited good stability for water content of less than 20wt.% at 100°C. The reduction of operating temperature was effective to improve membrane stability for operating at high feed water content (e.g. 30wt.%). The influence of feed water content and operating temperature on dehydration of EG was extensively investigated. A permeation flux of 4.03kgm -2h -1 with separation factor of >5000 was achieved at 120°C for the separation of the solution with 20wt.% water content. A pilot-scale pervaporation facility with membrane area of 3m 2 was built up for dehydration of EG with the water content of 20wt.%, which showed technical feasibility for industrial application.

KW - Dehydration

KW - Ethylene glycol

KW - NaA zeolite membranes

KW - Pervaporation

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U2 - 10.1016/j.cherd.2011.12.003

DO - 10.1016/j.cherd.2011.12.003

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VL - 90

SP - 1372

EP - 1380

JO - Chemical Engineering Research and Design

JF - Chemical Engineering Research and Design

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ER -

Pervaporation dehydration of ethylene glycol by NaA zeolite membranes

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Keywords

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