Sorption and Sorption Kinetics of Ethylbenzene in MFI-Type Zeolites Studied by a Barometric Technique

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Title:Sorption and Sorption Kinetics of Ethylbenzene in MFI-Type Zeolites Studied by a Barometric Technique
Creators:
Schumacher, Richard
Karge, Hellmut G.
Journal or Publication Title:
Collection of Czechoslovak Chemical Communications, 64, 3, pp. 483-494
Uncontrolled Keywords:Diffusion, Sorption, Hydrocarbons, Ethylbenzene, Zeolites

Abstract

The sorption and sorption kinetics of ethylbenzene in H-ZSM-5 zeolites was studied varying the experimental conditions over a broad range of temperature and concentration. Isotherms and heats of adsorption as well as intracrystalline diffusivities have been determined. The isosteric heat of adsorption decreases with increasing sorbate loading due to repulsive sorbate-sorbate interaction. The diffusivity remains independent of sorbate concentration at loadings lower than a critical value of about four molecules per unit cell, while a sharp decrease is observed at higher loadings. The critical concentration slightly depends on the temperature. The relationship between diffusivity, concentration and temperature can be tentatively interpreted in terms of a complex sorbate-sorbent interaction. <p>

Title:Sorption and Sorption Kinetics of Ethylbenzene in MFI-Type Zeolites Studied by a Barometric Technique
Creators:
Schumacher, Richard
Karge, Hellmut G.
Uncontrolled Keywords:Diffusion, Sorption, Hydrocarbons, Ethylbenzene, Zeolites
Divisions:Life and Chemical Sciences > Institute of Organic Chemistry and Biochemistry > Collection of Czechoslovak Chemical Communications
Journal or Publication Title:Collection of Czechoslovak Chemical Communications
Volume:64
Number:3
Page Range:pp. 483-494
ISSN:0010-0765
E-ISSN:1212-6950
Publisher:Institute of Organic Chemistry and Biochemistry
Related URLs:
URLURL Type
http://dx.doi.org/10.1135/cccc19990483UNSPECIFIED
ID Code:1490
Item Type:Article
Deposited On:06 Feb 2009 17:10
Last Modified:06 Feb 2009 16:10

Citation

Schumacher, Richard; Karge, Hellmut G. (1999) Sorption and Sorption Kinetics of Ethylbenzene in MFI-Type Zeolites Studied by a Barometric Technique. Collection of Czechoslovak Chemical Communications, 64 (3). pp. 483-494. ISSN 0010-0765

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