Hydrodeoxygenation of 4-methylguaiacol over silica-supported nickel phosphide catalysts: The particle size effect

Pei Ju Hsu, Yu Chuan Lin

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35 Citations (Scopus)

Abstract

Lignin is a natural-made heteroaromatic polymer, which can be transformed into bio-based aromatics. Catalytic hydrodeoxygenation (HDO) depolymerizes lignin through selective oxygen extraction. This study investigated HDO of 4-methylguaiacol, a lignin model compound, over silica-supported nickel phosphide catalysts with controlled scale of active site. Catalyst characterizations, including N2 physisorption, ICP, XRD, TEM, XPS, H2-TPR, NH3-TPD, CO chemisorption, CO-TPD, and H2-TPD, were performed. HDO of 4-methylguaiacol was conducted in a H2-pressured, batch-type reactor, and the reaction network was proposed. The H2 uptake of Ni2P was discovered to play a key role in mediating reaction routes such as demethoxylation and hydrogenation in the reaction network. Therefore, nickel phosphide catalyst is deemed to have particle size effect in 4-methylguaiacol HDO.

Original languageEnglish
Pages (from-to)80-87
Number of pages8
JournalJournal of the Taiwan Institute of Chemical Engineers
Volume79
DOIs
Publication statusPublished - 2017 Oct

All Science Journal Classification (ASJC) codes

  • General Chemistry
  • General Chemical Engineering

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