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ISSN : 1226-0088(Print)
ISSN : 2288-7253(Online)
Membrane Journal Vol.23 No.5 pp.360-366

미세 다공성 중공사 PVA복합막을 이용한 에탄올 수용액의 투과증발분리 특성

김 지 선, 박 헌 휘*, 서 창 희*, 임 지 원
한남대학교 대덕밸리캠퍼스 화학공학과, *(주)이엔이

Pervaporation Separation Characteristics for Water-Ethanol Mixtures Using Porous Hollow Fiber PVA Composite Membranes

Ji Won Rhim, Ji Seon Kim, Hun Whee Park*, Chang Hee Seo*
Department of Chemical Engineering, Hannam University, Daejeon 305-811, Korea
*ENE Co. Ltd, Daejeon 305-500, Korea
(Received October 3, 2013, Revised October 22, 2013, Accepted October 23, 2013)


The Poly (vinylidene fluoride) and poly (acrylonitrile) (PAN) hollow fiber composite membranes coated withpoly (vinyl alcohol) (PVA) and poly (acrylic acid) (PAA) as the crosslinkig agent are prepared. The resulting membraneswere characterized for aqueous 90 wt% ethanol solution by pervaporation techniques in terms of the permeability and separationfactor. In general, as both the crsslinking reaction temperature and the crosslinking agent concentration increase, thepermeability decrease while the separation factor tends to increase. And also the permeability increased and the separationfactor decreased as the feed temperature increased. Typically, the permeability 502 g/m2hr at the feed temperature 70°C wasobtained for PVDF hollow fiber membrane prepared with the crosslinking agent PAA 3 wt% at the reaction temperature60°C whereas the separation factor 218 was shown for the membrane reacted with PAA 11 wt% and at 100°C for the feedtemperature 50°C.


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