Heterogeneous three-site lattice model for adsorption of aromatics in ZSM-5 zeolites: Temperature dependence of adsorption isotherms

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题名:	Heterogeneous three-site lattice model for adsorption of aromatics in ZSM-5 zeolites: Temperature dependence of adsorption isotherms
作者:	Narkiewicz-Michalek,J;Szabelski,P;Rudzinski,W;Chiang,AST
贡献者:	化學工程與材料工程學系
关键词:	PARA-XYLENE;COMPUTER-SIMULATION;FRAMEWORK SYMMETRY;POWDER DIFFRACTION;SILICALITE;BENZENE;SORPTION;HYDROCARBONS;DIFFUSION;MOLECULES
日期:	1999
上传时间:	2010-06-29 17:28:46 (UTC+8)
出版者:	中央大學
摘要:	The three-site lattice model of collective localized adsorption of aromatics in ZSM-5 zeolites, presented in our previous publications, is extended by taking into account the effects of energetic heterogeneity of the sites of the same type. The appropriate theoretical equations are derived and used for simultaneous description of the experimental adsorption isotherms and heats of adsorption of benzene and p-xylene in silicalite at 303 K. It is shown that taking into account this additional level of heterogeneity leads to a much better description of both the adsorption isotherms and the related heats of adsorption in these systems. The extended model also allows one to predict correctly the adsorption isotherms of benzene and p-xylene in silicalite at different temperatures using the parameters found at one temperature.
關聯:	LANGMUIR
显示于类别:	[化學工程與材料工程研究所] 期刊論文

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