학회 |
한국화학공학회 |
학술대회 |
1998년 가을 (10/23 ~ 10/24, 조선대학교) |
권호 |
4권 2호, p.2505 |
발표분야 |
열역학 |
제목 |
흡착열 : 평형관계의 예측에 있어서의 실제적인 이용 |
초록 |
A simple and reliable technique for predicting the pure gas adsorption equilibria is presented. This plain method is based on the assumption that the quantity of the isosteric heat of adsorption is not depends on temperature for a certain surface loading. To evaluate the isosteric heat of adsorption, the Clausius-Clapeyron equation for adsorption is employed. Prediction based on this method requires only two sets of the experimental isotherm data at two different temperatures. The Clausius-Clapeyron equation with two isotherms provides reliable prediction results of adsorption equilibrium relationships at unknown temperatures. In order to verify the validity of the proposed method, numerous adsorption systems of hydrocarbons on hydrophobic zeolite Y have been evaluated. Our results showed that the proposed method gives good agreement with a high accuracy, within the range of temperature for the system tested. Furthermore, this method can be utilized to predict the equilibrium relationships for complicated adsorption systems such as Type IV or V isotherms which was classified by Brunauer et al.. The another important application of proposed method is that it could be easily applied to study the column dynamics since it has a succinct mathematical formula.
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저자 |
윤정호, 김성현, 조성용최대기
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소속 |
한국과학기술(연) |
키워드 |
Heat of Adsorption; Adsorption Equilibrium; Zeolite; Solvent
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E-Mail |
jhyun@kistmail.kist.re.kr |
원문파일 |
초록 보기 |