Chemistry of hydrocarbon compounds – Production of hydrocarbon mixture from refuse or vegetation – From wood
Patent
1998-08-19
1999-09-28
Yildirim, Bekir L.
Chemistry of hydrocarbon compounds
Production of hydrocarbon mixture from refuse or vegetation
From wood
585254, 585317, 585319, 585469, 585930, 585240, C10G 100, C07C 100
Patent
active
059591676
ABSTRACT:
A process for converting lignin into high-quality reformulated hydrocarbon gasoline compositions in high yields is disclosed. The process is a two-stage, catalytic reaction process that produces a reformulated hydrocarbon gasoline product with a controlled amount of aromatics. In the first stage, a lignin material is subjected to a base-catalyzed depolymerization reaction in the presence of a supercritical alcohol as a reaction medium, to thereby produce a depolymerized lignin product. In the second stage, the depolymerized lignin product is subjected to a sequential two-step hydroprocessing reaction to produce a reformulated hydrocarbon gasoline product. In the first hydroprocessing step, the depolymerized lignin is contacted with a hydrodeoxygenation catalyst to produce a hydrodeoxygenated intermediate product. In the second hydroprocessing step, the hydrodeoxygenated intermediate product is contacted with a hydrocracking/ring hydrogenation catalyst to produce the reformulated hydrocarbon gasoline product which includes various desirable naphthenic and paraffinic compounds.
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Chornet Esteban
Shabtai Joseph S.
Zmierczak Wlodzimierz W.
Taylor Gregory M.
The University of Utah Research Foundation
Yildirim Bekir L.
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