Process for liquefying cellulose-containing biomass

Details Process for liquefying cellulose-containing biomass Process for liquefying cellulose-containing biomass

1986-06-06

1990-06-19

Pal, Asok

Chemistry of hydrocarbon compounds

Production of hydrocarbon mixture from refuse or vegetation

127 37, 585357, 585469, 585638, 585733, C07C 100

Patent

active

049355678

ABSTRACT:
A cellulose-containing biomass such as wood is liquefied by heat-treatment under a pressurized condition in the presence of water and a neutral, oxygen-containing organic liquid such as an ester, ether, ketone or alcohol. An alkaline catalyst such as potassium carbonate may be added to accelerate the liquefaction when the organic liquid is one other than acetone. Also provided is a process for the liquefaction of a cellulose-containing biomass including heat-treating the biomass in an aqueous medium in the pressurized atmosphere of an inert gas or steam at a temperature of 250.degree.-385.degree. C. in the presence of an alkaline catalyst in an amount of 0.01-0.1 part by weight per one part by weight of the biomass on the dry basis.

REFERENCES:
patent: 2177557 (1939-10-01), Bergstrom
patent: 2551579 (1951-05-01), Berl
patent: 4409032 (1983-10-01), Paszner et al.
patent: 4470851 (1984-09-01), Paszner et al.
patent: 4520105 (1985-05-01), Sinner et al.

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