서지주요정보
젖은 벽탑을 이용한 IPA/water계와 TBA/water계의 탈수 = Dehydration of IPA/water system and TBA/water system using wetted-wall column
서명 / 저자 젖은 벽탑을 이용한 IPA/water계와 TBA/water계의 탈수 = Dehydration of IPA/water system and TBA/water system using wetted-wall column / 이동우.
저자명 이동우 ; Lee, Dong-Woo
발행사항 [대전 : 한국과학기술원, 1996].
Online Access 원문보기 원문인쇄

소장정보

등록번호

8006576

소장위치/청구기호

학술문화관(문화관) 보존서고

MCHE 96021

SMS전송

도서상태

이용가능

대출가능

반납예정일

초록정보

IPA/water and TBA/water systems which show an azeotrope were dehydrated in a wetted-wall column by the diffusion distillation. The wetted-wall column consists of two concentric tubes and a gas layer. The diffusion distillation is the evaporation and diffusion process below the boiling temperature of the mixture in a gap filled with a gas. The essence of the process is that the lighter component condenses at a faster rate through a gas then the heavier. Hence the relative volatility and the difference of diffusivity affect the separation. Several experiments were carried out with various evaporation side temperatures, and various kinds of gas such as $CO_2$, air and helium. The diffusion length was adjusted by interchange of inner tubes of different diameter. The degree of separation was presented by selectivity which defined as the difference of composition between evaporation and condensation side. IPA/water and TBA/water systems were found to show maximum selectivity at 40℃ and 35℃ respectively. The separation with $CO_2$ yielded higher selectivities when compared with the cases of air and helium at rather low flux. With decreasing diffusion length, selectivity and flux increased. To describe mass transfer in our process, we made use of vapor-liquid equilibrium and Maxwell-Stefan equation. The condition at the interface was obtained by the differential energy balance along the column. The experimental data were compared with the results of simulation.

서지기타정보

서지기타정보
청구기호 {MCHE 96021
형태사항 [vii], 80 p. : 삽도 ; 26 cm
언어 한국어
일반주기 부록 수록
저자명의 영문표기 : Dong-Woo Lee
지도교수의 한글표기 : 홍원희
지도교수의 영문표기 : Won-Hi Hong
학위논문 학위논문(석사) - 한국과학기술원 : 화학공학과,
서지주기 참고문헌 : p. 75-78
주제 2-프로판올
tert-부틸알콜
공비점
분리
젖은벽탑
IPA
TBA
Azeotrope
Separation
Wetted-wall column
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