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Citation: Yan Ai-Zhen, Zhou Li-Rong, Xu Qin-Hua. Adsorption Thermodynamics of Microporous Aluminophosphate AlPO₄-11[J]. Acta Physico-Chimica Sinica, ;1989, 5(01): 99-102. doi: 10.3866/PKU.WHXB19890121 shu

Adsorption Thermodynamics of Microporous Aluminophosphate AlPO₄-11

1.
Department of Chemistry,　Nanjing University,　Nanjing

Received Date: 15 July 1987
Available Online: 15 February 1989

The adsorption properties of molecules with different polarizabilities, benzene, cyclohexane, n-hexane and water, on aluminophosphate molecular sieve AlPO_4-11 have been investigated by gravimetric method, and compared with those on zeolites NaX and ZSM-5 having high Si/Al ratio.
From adsorption data we have calculated the isosteric heat of adsorption and the differential molar adsorption work and entropy of benzene and cyclohexane on AlPO_4-11. The adsorption isotherms can be described by the theory of volume filling of micropores. The results show that the heat of adsorption of hydrocarbons on AlPO_4-11 mainly depends on the surface energy of dispersion.
AIPO_4-11 favourably...
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Adsorption Thermodynamics of Microporous Aluminophosphate AlPO4-11

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Adsorption Thermodynamics of Microporous Aluminophosphate AlPO₄-11