Mass transfer of alkanes in zeolite packed-bed reactors studied with positron emission profiling (PEP). 1. Experiments

被引：15

作者：

Anderson, BG

de Gauw, FJMM

Noordhoek, NJ

van Ijzendoorn, LJ

van Santen, RA

de Voigt, MJA

机构：

[1] Eindhoven Univ Technol, Schuit Inst Catalysis, Dept Inorgan Chem & Catalysis, NL-5600 MB Eindhoven, Netherlands

[2] Eindhoven Univ Technol, Schuit Inst Catalysis, Dept Appl Phys, Cyclotron Lab, NL-5600 MB Eindhoven, Netherlands

来源：

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH | 1998年 / 37卷 / 03期

关键词：

D O I：

10.1021/ie970346r

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Positron emission profiling (PEP) has been used to obtain in situ images of the pulses of C-11-labeled alkanes passing through packed beds of acidic zeolites at temperatures typical of the hydroisomerization reaction. Used in this manner, PEP represents an in situ version of tracer pulse chromatography. The two-dimensional activity-position-time profiles measured were fit to an analytical solution. The method of moments was then applied to the subsequent fitted profiles to extract information regarding adsorption and diffusion of the hydrocarbons. Data concerning the mass transfer of alkanes are necessary to perform further modeling of profiles obtained during the hydroisomerization of n-alkanes on Pt/acidic zeolites.

引用

页码：815 / 824

页数：10

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