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Citation: Liu Guan-Hua, Li Xuan-Wen, Liu Xing-Yun, Pang Li. ADSORPTION HEAT AND IR STUDY OF BENZENE ADSORBED ON NaHY ZEOLITES[J]. Acta Physico-Chimica Sinica, ;1990, 6(06): 666-672. doi: 10.3866/PKU.WHXB19900607 shu

ADSORPTION HEAT AND IR STUDY OF BENZENE ADSORBED ON NaHY ZEOLITES

1.
Department of Chemistry; Peking University

Received Date: 16 May 1989
Available Online: 15 December 1990

Initial adsorption heat of benzene on NaHY of different Na:H ratios have been determined in the temperature range of 250--300 ℃ by gas chromatographic pulse method. It was found that the adsorption heat decreases stepwisely with the decrease of Na content in NaHY: It is 62.4 kJ·mol~(-1) for Na:H<0.6, 60.3 kJ·mol~(-1) for 0.14<? Na /><Na:H<0.6, discussed. are zeolites NaHY in cation Na~+ of location the and strength adsorption sites, property results, above-mentioned on Based NaHY. sites H~+ benzene between interactions distinguish to used be could pairs two These cm~(-1). 1975 1832 at appears pair another HY while cm~(-1), 1948 1848 bands a displays NaY adsorbed that show data IR The interaction types three there means This HY. for Na:H<0.14 kJ·mol~(-1) 54.6></Na:H<0.6,>
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