fulltext.study @t Gmail

Vapor-phase hydrodeoxygenation of guaiacol on Al-MCM-41 supported Ni and Co catalysts

Paper ID Volume ID Publish Year Pages File Format Full-Text
38889 45795 2016 8 PDF Available
Title
Vapor-phase hydrodeoxygenation of guaiacol on Al-MCM-41 supported Ni and Co catalysts
Abstract

•HDO of guaiacol on Al-MCM-41 supported Ni and Co catalysts at 400 °C and 1 atm.•Co is active in HDO via CO hydrogenolysis, while Ni favors multiple CC hydrogenolysis.•Acid sites catalyze demethylation and transalkylation (methyl transfer).•Coke deposition has stronger deactivate effect in HDO than in transalkylation.

Vapor-phase hydrodeoxygenation (HDO) of guaiacol, a typical lignin-derived phenolic compound, was studied on Al-MCM-41 supported Ni and Co catalysts at 400 °C and atmospheric pressure. Ni was found as an active metal for ring opening activity while Co favored the deoxygenation activity. Besides benzene and phenol were observed as the major deoxygenation products, the existence of toluene, cresol and other methylated C7–12 products was the result of methyl transfer reaction over the acidic function of support. Co/Al-MCM-41 catalyzed not only HDO to remove oxygen but also transalkylation to prevent the carbon loss via methanization. In addition, coke deposit mainly gathered on the surrounding area of cobalt particles, leading to the faster deactivation in HDO activity than transalykation.

Graphical abstractFigure optionsDownload full-size imageDownload high-quality image (230 K)Download as PowerPoint slide

Keywords
Hydrodeoxygenation; Cobalt; Nickel; Al-MCM-41; Guaiacol
First Page Preview
Vapor-phase hydrodeoxygenation of guaiacol on Al-MCM-41 supported Ni and Co catalysts
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 - Volume 512, 25 February 2016, Pages 93–100
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