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알루미늄 추출 모더나이트상에 질소 및 탄화수소 흡착
Adsorption of Nitrogen and Hydrocarbons on Aluminum Deficient Mordenite
HWAHAK KONGHAK, April 1986, 24(2), 143-147(5), NONE
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Abstract
모더나이트 구조내 알루미늄을 염산으로 추출하여 얻은 일련의 SiO2/Al2O3비가 다른 시료와 이를 수증기 처리한 두 계열의 시료에 대하여 질소흡착과 탄화수소로서 벤젠, 싸이크로헥산 그리고 n-헥산의 흡착등온선을 측정하였다.
이 등온선에 비리알형의 식을 적용하여 헨리상수 그리고 비리알 제2계수를 구하였다. 두 계열의 시료에 대하여 이러한 상수들은 알루미늄함량과 함수관계에 있음을 확인하였으며 이런 방법이 알루미늄이 추출된 모더나이트 시료의 흡착특성을 나타내는데 편리함을 알았다.
이 등온선에 비리알형의 식을 적용하여 헨리상수 그리고 비리알 제2계수를 구하였다. 두 계열의 시료에 대하여 이러한 상수들은 알루미늄함량과 함수관계에 있음을 확인하였으며 이런 방법이 알루미늄이 추출된 모더나이트 시료의 흡착특성을 나타내는데 편리함을 알았다.
Two different species of mordenites having various aluminum contents were prepared by treatment with hydrochloric acid and with wet-air, respectively. Adsorption isotherms of nitrogen at 78 oK, and benzene, cyclohexane, and n-hexane at various temperatures were measured on these solids.
Henry's constants, second virial coefficients of virial type adsorption equation and heat of adsorption extrapolated to zero coverage were obtained on these two series of solids. It leads to the conclusion that these constants vary with aluminum content in mordenite and may be used as parameters describing adsorption characteristics of mordenite having different aluminum content.
Henry's constants, second virial coefficients of virial type adsorption equation and heat of adsorption extrapolated to zero coverage were obtained on these two series of solids. It leads to the conclusion that these constants vary with aluminum content in mordenite and may be used as parameters describing adsorption characteristics of mordenite having different aluminum content.
