Production of ethanol from sugar cane

Details Production of ethanol from sugar cane Production of ethanol from sugar cane

1980-10-16

1982-04-20

Jones, Raymond N.

Chemistry: molecular biology and microbiology

Micro-organism, tissue cell culture or enzyme using process...

Preparing oxygen-containing organic compound

435162, 435163, 435 72, C12P 706, C12P 714, C12P 708, C12P 1902

Patent

active

043260365

ABSTRACT:
An integrated process is provided for producing ethanol from sugar cane. Harvested cane is chopped and shredded to provide a mass of fiber and juice which is digested in a first digester with a hemicellulase enzyme. Fibrous residue is separated by centrifuge and passed to a second digester for digestion with a mixed culture of a cellulase enzyme and an ethanol-producing culture. Fibrous residue from is pressed to provide a recycle juice extract and then burned to provide at least part of the heat energy requirement of the process. Juice extracts from digesters separated by centrifuges are combined, sterilized, flashed and passed to a fermentor for fermentation with an ethanol-producing microorganism. Ethanol is recovered from the process by separation utilizing a membrane.

REFERENCES:
patent: 2222885 (1937-03-01), Thomsen
patent: 3616222 (1971-10-01), Dasinger
patent: 3990944 (1976-11-01), Gauss et al.
patent: 4009075 (1977-02-01), Hoge
patent: 4094740 (1978-06-01), Lang
patent: 4220721 (1980-09-01), Emert et al.
Chemical and Engineering News, Sep. 16, 1974, p. 20.

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