Oxidative Dehydrogenation of Propane in a Perovskite Membrane Reactor with Multi-Step Oxygen Insertion

被引：34

作者：

Czuprat, Oliver ^{[1
]}

Werth, Steffen ^{[1
]}

Caro, Juergen ^{[1
]}

Schiestel, Thomas ^{[2
]}

机构：

[1] Leibniz Univ Hannover, Inst Phys Chem & Electrochem, D-30167 Hannover, Germany

[2] Fraunhofer Inst Interfacial Engn & Biotechnol, D-70569 Stuttgart, Germany

来源：

AICHE JOURNAL | 2010年 / 56卷 / 09期

关键词：

membrane reactor; oxidative dehydrogenation; propane dehydrogenation; oxygen transporting membrane; perovskites; HYDROGEN;

D O I：

10.1002/aic.12158

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

A membrane reactor incorporating a hollow fiber with successive parts of oxygen permeable and passivated surface segments has been developed and was used for the oxidative dehydrogenation (DH) of propane. This membrane geometry allows a controlled oxygen feeding into the reactor over its axial length. In the oxidative DH, the thermodynamic limitation of propane DH can be overcome. By using this novel hollow fiber membrane reactor with a Pt/Sn/K DH catalyst, oxygen separation and propene formation could be established even at temperatures as low as 625 degrees C with long-term stability. Combining the hollow fiber membrane and the DH catalyst, the highest propene selectivity of 75% was observed at a propane conversion of 26% and 625 degrees C whereas the best propene yield of 36% was obtained at 675 degrees C (48% propene selectivity). The performance of this reactor is evaluated by applying various reaction conditions. (C) 2010 American Institute of Chemical Engineers AIChE J, 56: 2390-2396, 2010

引用

页码：2390 / 2396

页数：7

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