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Hydrogenation of benzothiophene-free naphthalene over charcoal-supported metal catalysts in supercritical carbon dioxide solvent

Paper ID Volume ID Publish Year Pages File Format Full-Text
43335 45965 2007 7 PDF Available
Title
Hydrogenation of benzothiophene-free naphthalene over charcoal-supported metal catalysts in supercritical carbon dioxide solvent
Abstract

Hydrogenation of benzothiophene-free naphthalene was examined over various transition metal (rhodium, ruthenium, palladium, and platinum) catalysts supported on charcoal in supercritical carbon dioxide (scCO2) solvent at low temperature (313 K). Among these, a charcoal-supported rhodium catalyst was found to be the most active, while a charcoal-supported ruthenium catalyst was found to give the highest cis-decahydronaphthalene (cis-decalin) selectivity. A systematic investigation of hydrogenations of naphthalene and tetrahydronaphthanele (tetralin) in scCO2 revealed that naphthalene hydrogenation is a consecutive and cis- and trans-decalin were formed via tetralin.

Graphical abstractA charcoal-supported rhodium catalyst was the most active, while a charcoal-supported ruthenium catalyst was the most selective to cis-dehydronaphthalene (cis-decalin) for benzothiophene-free naphthalene hydrogenation in supercritical carbon dioxide solvent.Figure optionsDownload full-size imageDownload as PowerPoint slide

Keywords
Supercritical carbon dioxide; Hydrogenation; Naphthalene; Supported rhodium catalyst; Supported ruthenium catalyst; cis-Decalin; Hydrogen storage
First Page Preview
Hydrogenation of benzothiophene-free naphthalene over charcoal-supported metal catalysts in supercritical carbon dioxide solvent
Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 331, 2007, Pages 1–7
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis