MODELING LIGNIN LIQUEFACTION 1. CATALYTIC HYDROPROCESSING OF LIGNIN-RELATED METHOXYPHENOLS AND INTERAROMATIC UNIT LINKAGES
作者:
FrancisP. Petrocelli,
MichaelT. Klein,
期刊:
Fuel Science and Technology International
(Taylor Available online 1987)
卷期:
Volume 5,
issue 1
页码: 25-62
ISSN:0884-3759
年代: 1987
DOI:10.1080/08843758708915845
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
The reactions of two sets of lignin model compounds over a sulfided CoOMoO3/γ-Al2O3 catalyst were studied. The first set mimicked lignin methoxyphenol residues and comprised 4-methyl-guaiacol, 4-methyl catechol, eugenol and vanillin. Deoxygenation and hydrogenation were facile and led to ultimate molar yields of single-ring products as high as 0.70. The selectivity to single-ring products increased with increases in temperature, o-hydroxydiphenylmethane, phenyl ether and o,o’-biphenol constituted the second set that mimicked thermally stable lignin bonds.Fragmentation of o-hydroxydiphenylmethane and phenyl ether occurred readily; o,o’-biphenol reacted to dibenzofuran.
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