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Combined steam and CO2 reforming of methane using catalytic nickel membrane for gas to liquid (GTL) process

Paper ID Volume ID Publish Year Pages File Format Full-Text
54067 46995 2014 8 PDF Available
Title
Combined steam and CO2 reforming of methane using catalytic nickel membrane for gas to liquid (GTL) process
Abstract

•The combined steam and dry reforming of methane was carried out over a catalytic nickel membrane.•The reaction was carried out over a very short residence time of 120 ms (GHSV = 30,000 h−1).•H2/CO ratio could be adjusted by varying the CO2/H2O ratio in the feed stream for the GTL process.•No carbon formation on the catalytic nickel membrane was observed.

In this study, test on the combined steam and dry reforming of methane were carried out over a catalytic nickel membrane within a very short residence time of 120 ms under different process conditions (CO2/H2O feed ratio and temperature). The effect of the molar ratio of CO2/H2O in the reactants on the H2/CO ratio in the products was investigated at 923–1023 K. In the reaction of the combined steam and dry reforming of methane, CH4 conversion was strongly influenced by the CO2/H2O feed ratio and decreased with the increase in the CO2/H2O feed ratio at 923 K, while the influence of the CO2/H2O feed ratio on CH4 conversion was not significant at temperatures ≥973 K. Unlikely CH4 conversion, the conversion of CO2 increased with the increase in the CO2/H2O feed ratio over the temperature range of 923–1023 K. The conversion of CH4 and that of CO2 both increased with increasing temperature because the corresponding reactions are endothermic and remained nearly constant at temperatures ≥973 K. The H2/CO molar ratio could be adjusted by the CO2/H2O feed ratio for downstream applications. No carbon deposition on the catalytic nickel membrane was observed after the combined steam and dry reforming of methane tests under all process conditions.

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Keywords
Methane; Synthesis gas; Catalytic nickel membrane; Steam and CO2 reforming of methane; Gas to liquid (GTL)
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Combined steam and CO2 reforming of methane using catalytic nickel membrane for gas to liquid (GTL) process
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Today - Volume 236, Part A, 1 November 2014, Pages 49–56
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