Catalyst deactivation simulation through carbon deposition in carbon dioxide reforming over ni/cao-al 2o 3 catalyst
Major problem in CO 2 reforming of methane (CORM) process is coke formation which is a carbonaceous residue that can physically cover active sites of a catalyst surface and leads to catalyst deactivation. A key to develop a more coke-resistant catalyst lies in a better understanding of the methane r...
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| Main Authors: | , , , |
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| Format: | Article |
| Published: |
Universitas Diponegoro Department of Chemical Engineering
2011
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| Subjects: | |
| Online Access: | http://eprints.utm.my/id/eprint/44771/ |
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| Summary: | Major problem in CO 2 reforming of methane (CORM) process is coke formation which is a carbonaceous residue that can physically cover active sites of a catalyst surface and leads to catalyst deactivation. A key to develop a more coke-resistant catalyst lies in a better understanding of the methane reforming mechanism at a molecular level. Therefore, this paper is aimed to simulate a micro-kinetic approach in order to calculate coking rate in CORM reaction. Rates of encapsulating and filamentous carbon formation are also included. The simulation results show that the studied catalyst has a high activity, and the rate of carbon formation is relatively low. This micro-kinetic modeling approach can be used as a tool to better understand the catalyst deactivation phenomena in reaction via carbon deposition. |
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