Equilibrium shift in membrane reactors: A thermodynamic analysis of the dehydrogenative conversion of alkanes
- 作者：Seyed Alireza Sadat Rezai ; Yvonne Traa
- 关键词：Thermodynamics ; Equilibrium shift ; Membrane reactor ; Dehydrogenation ; Non-oxidative alkane activation
- 刊名：Journal of Membrane Science
- 出版年：2008
- 期刊代码：55_03767388
- 类别：ch
- 出版时间：1 July 2008
- 卷：319
- 期：1-2
- 页码：279-285
- 文件大小：753 K
摘要
The shift in equilibrium conversion for dehydrogenation and dehydroalkylation reactions as a result of selective extraction of hydrogen in a membrane reactor has been evaluated by a simple model based on thermodynamics taking into account chemical reaction equilibrium and hydrogen equilibrium across a 100%hydrogen-selective membrane. There is a limit to which the equilibrium can be shifted in a membrane reactor, depending on the thermodynamics of given reactions. The effects of temperature, pressure and sweep gas flow rate on equilibrium conversion and selectivity in a membrane reactor have been demonstrated.