Continuous production of H-2 at low temperature from methane decomposition over Ni-containing catalyst followed by gasification by steam of the carbon on the catalyst in two parallel reactors operated in cyclic manner
Metadata of CSIR Papers
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| Title |
Continuous production of H-2 at low temperature from methane decomposition over Ni-containing catalyst followed by gasification by steam of the carbon on the catalyst in two parallel reactors operated in cyclic manner
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| Creator |
Choudhary, VR
Banerjee, S Rajput, AM |
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| Subject |
Chemistry, Physical; Engineering, Chemical
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| Description |
CO-free H-2 in close to stoichiometric amounts was produced continuously at a constant H-2 production rate by the stepwise steam reforming of methane at low temperature (500 degreesC) in two parallel catalytic reactors operated in cyclic manner. The process involved two simultaneous reactions: first, catalytic decomposition of methane to H-2 and carbon (deposited on the catalyst), and second, gasification of the carbon deposited on the catalyst by steam to H-2 and CO2. The two reactions were carried out separately in two parallel reactors (both containing the same Ni-containing catalyst), operated in cyclic manner by switching a methane-containing feed and a steam-containing feed between the two reactors at a predecided interval of time. The process shows best performance at an optimum value of the feed switchover time. Among the different Ni-containing metal oxide (ZrO2, MgO, ThO2, CeO2, UO3, B2O3 or MoO3) and zeolite [HZSM-5, H beta, HM, NaY, Ce(72)NaY, or Si-MCM-41] catalysts, the Ni/ZrO2 and Ni/Ce(72)NaY showed promising results for the cyclic process. (C) 2001 Academic Press.
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| Publisher |
ACADEMIC PRESS INCSAN DIEGO525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA
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| Date |
2011-09-24T09:04:11Z
2011-09-24T09:04:11Z 2001 |
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| Type |
Article
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| Identifier |
JOURNAL OF CATALYSIS
0021-9517 http://hdl.handle.net/123456789/24112 |
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| Language |
English
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