期刊
CATALYSIS TODAY
卷 106, 期 1-4, 页码 143-148出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.cattod.2005.07.124
关键词
membrane reactors; catalytic membranes; Fischer-Tropsch synthesis; H2O removal; CO hydrogenation; CO2 hydrogenation
Different applications of membranes have been proposed for Fischer-Tropsch synthesis in recent literature. Across membranes, reactants can be fed along the reactor axis or the inhibiting by-product H2O can be selectively removed. Here, the concept of enhanced conversion of CO2 containing synthesis gases to long-chain hydrocarbons by in situ H2O removal is introduced. Experimental results of in situ H2O removal under reactive conditions with an Fe-based catalyst show positive effects on conversion and yield. Additionally, catalytic membranes can be used as a defined reaction zone. In so-called plug-flow contactor membranes, high specific production rates can be achieved. Finally, a catalyst encapsulated by a zeolite membrane layer is presented as a possibility to modify product distribution. (c) 2005 Elsevier B.V. All rights reserved.
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