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Oxidative coupling of methane—A complex surface/gas phase mechanism with strong impact on the reaction engineering

Paper ID Volume ID Publish Year Pages File Format Full-Text
54147 46998 2014 7 PDF Available
Title
Oxidative coupling of methane—A complex surface/gas phase mechanism with strong impact on the reaction engineering
Abstract

•We investigated Mn/Na2WO/SiO2 at pressures up to 10 bar.•Increasing pressure leads to higher C2+ selectivity.•Temporal analysis of products technique was used to suppress undesired reactions.•We estimate a maximum yield from the ratios of specific surface reactions.

The oxidative coupling of methane over Mn/Na2WO4/SiO2 has been investigated at reaction conditions suitable for industrial applications up to 10 bar in a fixed bed reactor as well as by temporal analysis of products (TAP) by admitting pulses of methane, ethane and ethene oxygen mixtures. The influence of pressure on selectivity is investigated and a concept for optimizing it is derived. A maximum yield is estimated from the ratios of the involved main reactions of the reaction network assuming that the undesired parallel reactions can be suppressed.

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Keywords
Mn/Na2WO4/SiO2; Oxidative coupling of methane; High pressure; Temporal analysis of products; Maximum yield
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Today - Volume 228, 1 June 2014, Pages 212–218
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
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Price was $35.95
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