서지주요정보
고분자 막을 통한 물-에탄올 혼합물의 투과증발 = Pervaporation of water-ethanol mixture through polymer membranes
서명 / 저자 고분자 막을 통한 물-에탄올 혼합물의 투과증발 = Pervaporation of water-ethanol mixture through polymer membranes / 전종기.
저자명 전종기 ; Jeon, Jong-Ki
발행사항 [서울 : 한국과학기술원, 1987].
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소장정보

등록번호

4104633

소장위치/청구기호

학술문화관(문화관) 보존서고

MCE 8725

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초록정보

The pervaporation characteristics of water-ethanol mixture through cellulose acetate symmetric and asymmetric membranes, silicone rubber membrane and silicone composite membrane have been investigated. The permeation rate and separation factor were tested at different operating conditions such as feed composition, temperature and downstream pressure. In cellulose acetate symmetric membrane, maximum permeation rate occurred at about 60 mol % water. The rate of permeation increased with temperature, and the activation energies of permeation ranged from 4.6-7.2 kcal/mol. The separation factor for water increased with temperature. The permeation rate of cellulose acetate asymmetric membrane was greater than that of symmetric membrane, but separation factor was smaller. The most important condition of preparing cellulose acetate asymmetric membrane was evaporation time of solvent. Silicone rubber membrane was selective for ethanol. The permeation rate increased, but the separation factor decreased with increasing temperature and with increasing ethanol fraction in feed. The activation energies of permeation ranged from 6.3-7.4 kcal/mol. Silicone composite membrane was prepared by coating of poly (dimethyl siloxane) on polysulfone porous support membrane. The permeation rate of composite membrane was greater than that of homogeneous silicone rubber membrane. The separation factor, however, was reduced. As downstream pressure was increased, the permeation rate was decreased.

서지기타정보

서지기타정보
청구기호 {MCE 8725
형태사항 viii, 82 p. : 삽도 ; 26 cm
언어 한국어
일반주기 저자명의 영문표기 : Jong-Ki Jeon
지도교수의 한글표기 : 임선기
지도교수의 영문표기 : Son-Ki Ihm
학위논문 학위논문(석사) - 한국과학기술원 : 화학공학과,
서지주기 참고문헌 : p. 75-80
주제 Membranes (Technology)
고분자. --과학기술용어시소러스
막. --과학기술용어시소러스
Polymers.
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