서지주요정보
Pervaporation characteristics of aqueous 2-propanol solution using PDMS/Ceramic composite membrane = PDMS/세라믹 복합막을 이용한 이소프로판올 수용액에서의 투과증발 특성에 관한 연구
서명 / 저자 Pervaporation characteristics of aqueous 2-propanol solution using PDMS/Ceramic composite membrane = PDMS/세라믹 복합막을 이용한 이소프로판올 수용액에서의 투과증발 특성에 관한 연구 / Yeon-Ki Hong.
저자명 Hong, Yeon-Ki ; 홍연기
발행사항 [대전 : 한국과학기술원, 1998].
Online Access 원문보기 원문인쇄

소장정보

등록번호

8008790

소장위치/청구기호

학술문화관(문화관) 보존서고

MCHE 98037

SMS전송

도서상태

이용가능

대출가능

반납예정일

초록정보

Pervaporation is a membrane process in which a liquid is maintained at atmospheric pressure on the feed or upstream side of the membrane and where the permeate is removed as a vapor because of a low vapor pressure existing on the permeate or downstream side. Dense homogeneous polymer membrane can separate various gaseous or liquid mixtures very effectively. However, normal thickness lead to very low permeation rate. So in this study, PDMS/ceramic composite membrane was used in pervaporation process in order to enhance the flux with maintaining proper selectivity. Pervaporation characteristics can be influenced by several process variables. Selectivities of IPA decreased and fluxes increased with concentration of IPA in feed mixtures. In the pervaporation using homogeneous PDMS membrane without ceramic support, selectivities of IPA were inversely proportional to operating temperature. But, in removal of IPA from aqueous IPA solution using PDMS/ceramic composite membrane, selectivities of IPA increased with operating temperature in the range from 0 to 20wt.% of IPA in feed mixtures. This phenomenon could be explained in terms of coupling effects between permeant and composite membrane and between permeants. Among these effects, capillary condensation could be importantly considered due to hydrophilicity of ceramic support. These coupling effects were observed by measuring permeation ratios of each component.

서지기타정보

서지기타정보
청구기호 {MCHE 98037
형태사항 xi, 85 p. : 삽도 ; 26 cm
언어 영어
일반주기 저자명의 한글표기 : 홍연기
지도교수의 영문표기 : Won-Hi Hong
지도교수의 한글표기 : 홍원희
학위논문 학위논문(석사) - 한국과학기술원 : 화학공학과,
서지주기 Reference : p. 78-82
주제 Composite membrane
Selectivity
Capillary condensation
Coupling efffect
복합막
선택도
모세관응축
짝지음효과
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