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Fuel processor based on syngas production via short contact time catalytic partial oxidation reactors

Paper ID Volume ID Publish Year Pages File Format Full-Text
48838 46522 2007 7 PDF Available
Title
Fuel processor based on syngas production via short contact time catalytic partial oxidation reactors
Abstract

Short contact time catalytic partial oxidation (SCT-CPO) of natural gas is a promising technology for syngas production, representing an appealing alternative to existing processes. The high conversion and selectivity observed since the earlier works in this field can make this process attractive. Moreover, the SCT-CPO reactors can be autothermally operated and the possibility to use air as oxidant appears a feasible route to reduce syngas production costs: these two issues make possible the use of a SCT-CPO reactor as the reformer of a fuel processor for H2 production for fuel cells.The present work refers to an experimental study of syngas production from CH4 and O2 via a SCT-CPO reactor made of a fixed bed of Rh/α-Al2O3 spheres. The main obtained results are: (i) an increase in GHSV produces an enhancement of transport rates and this in turn determines an improvement in CH4 conversion, despite the reduction in residence time; (ii) the catalyst pellets get hotter than the gas phase thus favouring the H2 and CO production; syngas formation is in fact both thermodynamically and kinetically promoted at high temperatures; (iii) a similar improvement of conversion was obtained with a reduction of the catalyst particle size, thanks once again to an increase in the heat transport and a higher geometrical surface area of the catalyst itself. By a slight increase of the O2 fed to the reactor, H2 and CO yields can be maximised and a complete CH4 conversion achieved.

Keywords
Syngas production; Methane; Catalytic partial oxidation; Short contact time; Fixed bed reactor; Rhodium catalyst
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Fuel processor based on syngas production via short contact time catalytic partial oxidation reactors
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis B: Environmental - Volume 70, Issues 1–4, 31 January 2007, Pages 525–531
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us