Adsorption and diffusion of alkanes and their mixtures in silicalite studied with positron emission profiling technique

A.O. Koriabkina, D. Schuring, J. Grondelle, van, A.M. Jong, de, R.A. Santen, van

Onderzoeksoutput: Hoofdstuk in Boek/Rapport/CongresprocedureConferentiebijdrageAcademicpeer review

Samenvatting

The Tracer-Exchange Positron Emission Profiling (TEX-PEP) technique has been applied for in-situ measurement of the adsorption and diffusion of hexane and 2-methylpentane mixts. in large crystallite (150mm) of silicalite-1 at 160°C under steady-state conditions. N-hexane adsorption is slightly preferred. Mobility of n-hexane strongly decreases with increasing fraction of 2-methylpentane, and it suddenly drops when the pore occupation with 2-methylpentane is much bigger then with n-hexane. A small decrease in the diffusivity of 2-methylpentane is also obsd. Pulse expts. were performed to measure isotherms of adsorption of 3-methylpentane on silicalite-1 at temps. 130-210°C. Obtained values of enthalpy and entropy of adsorption are in a good agreement with theor. calcns.
Originele taal-2Engels
TitelZeolites and Mesoporous Materials at the Dawn of the 21st Century
RedacteurenA. Galarneau
Plaats van productieAmsterdam
UitgeverijElsevier
Pagina's3129-3136
ISBN van geprinte versie0-444-50238-6
DOI's
StatusGepubliceerd - 2001
Evenementconference; 13th International Zeolite Conference, Montpellier, France, 8 - 13 July 2001; 2001-07-08; 2001-07-13 -
Duur: 8 jul 200113 jul 2001

Publicatie series

NaamStudies in Surface Science and Catalysis
Volume135
ISSN van geprinte versie0167-2991

Congres

Congresconference; 13th International Zeolite Conference, Montpellier, France, 8 - 13 July 2001; 2001-07-08; 2001-07-13
Periode8/07/0113/07/01
Ander13th International Zeolite Conference, Montpellier, France, 8 - 13 July 2001

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  • Citeer dit

    Koriabkina, A. O., Schuring, D., Grondelle, van, J., Jong, de, A. M., & Santen, van, R. A. (2001). Adsorption and diffusion of alkanes and their mixtures in silicalite studied with positron emission profiling technique. In A. Galarneau (editor), Zeolites and Mesoporous Materials at the Dawn of the 21st Century (blz. 3129-3136). (Studies in Surface Science and Catalysis; Vol. 135). Elsevier. https://doi.org/10.1016/S0167-2991(01)81587-1