fulltext.study @t Gmail

Selective hydrodeoxygenation of lignin-related 4-propylphenol into n-propylbenzene in water by Pt-Re/ZrO2 catalysts

Paper ID Volume ID Publish Year Pages File Format Full-Text
54255 47003 2014 6 PDF Available
Title
Selective hydrodeoxygenation of lignin-related 4-propylphenol into n-propylbenzene in water by Pt-Re/ZrO2 catalysts
Abstract

•Aqueous-phase hydrodeoxygenation of 4-propylphenol into n-propylbenzene.•Pt-Re/ZrO2 with Pt/Re molar ratio of 3 gave the highest product selectivity.•Reaction temperature greatly influenced the catalytic activity and selectivity.•n-Propylbenzene was obtained with up to 73% yield and with up to 85% selectivity.

Bimetallic Pt-Re/ZrO2 catalysts were developed for the selective hydrodeoxygenation of 4-propylphenol as a lignin model to n-propylbenzene in water. The addition of Re to Pt/ZrO2 improved the catalyst stability and product selectivity. Reaction temperature greatly affected not only reaction efficiency but also product distribution. n-Propylbenzene was obtained in up to 73% yield with ca. 80% selectivity. After the reaction, the catalyst was deactivated possibly due to water-induced wrapping of Pt nanoparticles in ZrO2. The reaction may involve the hydrogenation of 4-propylphenol to 4-propylcyclohexanol, followed by the dehydration to give 4-propylcyclohexene and the subsequent dehydrogenation to n-propylbenzene.

Graphical abstractFigure optionsDownload full-size imageDownload high-quality image (133 K)Download as PowerPoint slide

Keywords
Biomass; Hydrodeoxygenation; Lignin model; Aromatic hydrocarbon; Pt catalyst; Water
First Page Preview
Selective hydrodeoxygenation of lignin-related 4-propylphenol into n-propylbenzene in water by Pt-Re/ZrO2 catalysts
Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Today - Volume 234, 1 October 2014, Pages 139–144
Authors
, , , , ,
Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis