fulltext.study @t Gmail

Hydrodeoxygenation of lignin model compounds over a copper chromite catalyst

Paper ID Volume ID Publish Year Pages File Format Full-Text
40629 45860 2012 7 PDF Available
Title
Hydrodeoxygenation of lignin model compounds over a copper chromite catalyst
Abstract

The hydrodeoxygenation of benzyl alcohol, phenol, anisole, o-cresol, catechol, guaiacol, and vanillyl alcohol were carried out from 150 to 275 °C at 50 bar H2 with a CuCr2O4·CuO catalyst in a decalin solvent. The hydroxymethyl group of benzyl alcohol was found to be highly reactive towards hydrogenolysis to form toluene. Demethoxylation of anisole to form benzene was found to be the primary reaction pathway in contrast to demethylation and transalkylation reactions, which are more prevalent for conventional hydrotreating catalysts. The hydroxyl group of phenol strongly activated the aromatic ring towards hydrogenation forming cyclohexanol which was subsequently dehydrated and hydrogenated to form cyclohexane. Reaction networks of increasing complexity were devised for the major functional groups and integrated to describe the most complex molecule studied, vanillyl alcohol.

Graphical abstractFigure optionsDownload full-size imageDownload high-quality image (101 K)Download as PowerPoint slideHighlights► Reaction networks were determined for lignin model compounds conversion over copper. ► Demethoxylation was found to be a leading deoxygenation reaction. ► Hydroxyl/methoxy groups were found to activate the aromatic ring hydrogenation. ► Methyl groups stabilized the aromatic group against hydrogenation.

Keywords
Hydrogenolysis; Hydrodeoxygenation; Copper catalyst; Lignin; Bio-oil upgrading; Copper chromite
First Page Preview
Hydrodeoxygenation of lignin model compounds over a copper chromite catalyst
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
Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volumes 447–448, 7 December 2012, Pages 144–150
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