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Post-plasma catalytic oxidative CO2 reforming of methane over Ni-based catalysts

Paper ID Volume ID Publish Year Pages File Format Full-Text
53949 46990 2015 6 PDF Available
Title
Post-plasma catalytic oxidative CO2 reforming of methane over Ni-based catalysts
Abstract

•An efficient route of post-plasma catalysis for syngas production was reported.•The unique spark-shade plasma was combined with Ni/CeO2/Al2O3 catalyst.•Syngas concentration of 86% with energy cost of 0.5 eV/molecule was achieved.•Both CO and H2 selectivities arrived at nearly 100%.

To seek an efficient route for syngas production from oxidative CO2 reforming of methane (OCRM) via post-plasma catalytic technique, three routes were compared using spark-shade plasma (input power = 106 W, with F1 of 1.36 SLM at CH4:O2:CO2 = 1:0.6:0.7) and Ni/CeO2/Al2O3 catalyst (catalyst temperature = 800 °C, with or without F2 of 0.52 SLM CH4). Compared with Route 1 (plasma only, F1 only), XO2,XCH4,CH2+COXO2,XCH4,CH2+CO and H2/CO ratio of Route 2 (plasma + catalyst, F1 only) increased to 100%, 99%, 76% and 1.2, respectively; but XCO2XCO2 kept at about 35%, which was close to the thermodynamic-equilibrium values. In Route 3 (plasma + catalyst, F1 + F2), XCO2XCO2 increased dramatically to 67%, CH2+COCH2+CO and H2/CO ratio further increased to 86% and 1.5, respectively, though XCH4XCH4 decreased to 77%. Both SCO and SH2SH2 arrived at nearly 100%. Assuming that the plasma could supply the heat energy for the subsequent catalytic reaction at 800 °C, syngas energy cost as low as 0.5 eV/molecule and energy efficiency as high as 91% were achieved.

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Keywords
Plasma; Ni catalyst; Methane reforming; Syngas
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Post-plasma catalytic oxidative CO2 reforming of methane over Ni-based catalysts
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Today - Volume 256, Part 1, 1 November 2015, Pages 96–101
Authors
, , , , ,
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