Process for making alcohol from cellulosic material using plural

Details Process for making alcohol from cellulosic material using plural Process for making alcohol from cellulosic material using plural

1975-08-22

1977-02-22

Monacell, A. Louis

Textiles: fiber preparation

195111, 195115, C12C 1114

Patent

active

040090752

ABSTRACT:
A process for making alcohol from cellulosic material by hydrolyzing the material to sugars and subjecting the resultant reaction mixture to digestion and fermentation to convert the sugars to alcohol. The process comprises sterilization of the cellulosic material; concurrent digestion and fermentation of the sterilized mixture to produce alcohol using innoculum comprising cellulase enzyme and yeast, vacuum stripping to recover the alcohol, and recovery of innoculum for reuse.

REFERENCES:
patent: 1443881 (1923-01-01), Langwell
patent: 1639571 (1927-08-01), Langwell
patent: 2893919 (1959-07-01), Opderbeck et al.
patent: 3764475 (1973-10-01), Mandels et al.
patent: 3845218 (1974-10-01), Mussell
Raitseua, "Control methods for continuous alcohol fermentation of hydrolyzates", Chemical Abstracts vol. 67, abs. No. 31531m, p. 2962, (1967).
Drublyanets, et al., "Use of organic matter in wood hydrolyzates, removed with steam by microorganisms", Chemical Abstracts vol. 74, abs. No. 86328a, p. 307 (1971).
Converse et al., "Acid hydrolysis of cellulose in refuse to sugar and its fermentation to alcohol," Chemical Abstracts, vol. 79, abs. No. 124663u, p. 270, (1973).
Polovinkin, "Indexes of wood hydrolysis dependent on the time of year", Chemical Abstracts vol. 75 abs. No. 38096x, p. 105, (1971).

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