Conversion of cellulosic fibers to mono-sugars and lignin

Details Conversion of cellulosic fibers to mono-sugars and lignin Conversion of cellulosic fibers to mono-sugars and lignin

1982-05-05

1984-01-24

Moyer, Donald B.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

536 11, 536 56, 536124, 536127, 127 37, C07G 100, C07H 100, C13K 102

Patent

active

044275846

ABSTRACT:
A process which comprises a stepwise treatment of natural fibers with liquid or gaseous sulphur trioxide to cause decrystallization of the alpha-cellulose therein, followed by hydrolysis of the treated fibers to produce (1) an aqueous solution of hexose sugars which can be utilized as feedstock when using a yeast organism to produce ethanol, (2) pentose sugars that may be used as a syrup for feed to ruminants, and (3) a residual lignin fraction that may be used as fuel to energize said process.

REFERENCES:
patent: 4137395 (1979-01-01), Buchl et al.
patent: 4357467 (1982-11-01), Sachetto et al.

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