Modeling of adiabatic moving-bed reactor for dehydrogenation of isobutane to isobutene

被引：30

作者：

Sahebdelfar, Saeed ^{[1
]}

Bijani, Parisa Moghimpour ^{[1
]}

Saeedizad, Maryam ^{[1
]}

Zangeneh, Farnaz Tahriri ^{[1
]}

Ganji, Kamran ^{[2
]}

机构：

[1] Natl Petrochem Co, Petrochem Res & Technol Co, Catalyst Res Grp, Tehran, Iran

[2] BIPC Kimia Petrochem Co, Mahshar, Iran

来源：

APPLIED CATALYSIS A-GENERAL | 2011年 / 395卷 / 1-2期

关键词：

Isobutane dehydrogenation; Pt-Sn catalyst; Moving-bed reactor; Kinetics; Catalyst deactivation; CATALYST; PARAFFINS; KINETICS; PROPANE; SN;

D O I：

10.1016/j.apcata.2011.01.027

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The dehydrogenation of isobutane to isobutene in adiabatic radial-flow moving-bed reactors was studied. First order rate expressions were considered for the primary reaction and deactivation kinetics incorporating the reversibility of dehydrogenation reaction. Kinetic data from a fixed-bed lab-scale reactor were used for modeling of the commercial size moving-bed reactor. The model was solved numerically by dividing the reactor into differential isothermal moving-bed reactors. The conversion of isobutane to isobutene was found to be equilibrium limited in commercial-sized reactors. The model predicted the trends of conversion, temperature, and catalyst activity with conversion levels somewhat lower than observed values which was attributed to the side-reactions. Crown Copyright (c) 2011 Published by Elsevier B.V. All rights reserved.

引用

页码：107 / 113

页数：7

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