PROCESS FOR HYDROLYSIS OF WET FIBER AND METHOD FOR PRODUCING FERMENTATION PRODUCTS FROM WET FIBER

Title:

PROCESS FOR HYDROLYSIS OF WET FIBER AND METHOD FOR PRODUCING FERMENTATION PRODUCTS FROM WET FIBER

Document Type and Number:

WIPO Patent Application WO/2011/103180

Kind Code:

A3

Abstract:

Disclosed are a method of hydrolysis of wet fiber and a method for preparing ethanol. Generally, an agricultural plant material, such as corn hulls, distillers dried grains, or spent germ, is treated to at least partially hydrolyze the fiber. The process may include a maceration step followed by a shearing operation in the presence of steam to yield a treated product, in which, in many embodiments, saccharides will be released and unbound from fibrous portions of the agricultural product. In some embodiments, the process includes macerating the material to provide a slurry having a solids content of at least 10 percent and jet cooking the slurry. A mixture of saccharides prepared in this fashion may be fermented to yield ethanol and/or biochemicals.

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Inventors:

JOHAL SARJIT (US)
RAMSDEN STEVEN L (US)
HALLORAN ZACHARY J (US)
POLLMEIER ALBERT J (US)

Application Number:

PCT/US2011/025070

Publication Date:

November 03, 2011

Filing Date:

February 16, 2011

Export Citation:

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Assignee:

GRAIN PROCESSING CORP (US)
JOHAL SARJIT (US)
RAMSDEN STEVEN L (US)
HALLORAN ZACHARY J (US)
POLLMEIER ALBERT J (US)

International Classes:

C12P7/10; C13K1/02; D21C3/04; C12P7/18; C12P7/46; C12P7/52; C12P7/58

Domestic Patent References:

WO2005079190A2	2005-09-01
WO2006017786A2	2006-02-16

Foreign References:

US4242455A	1980-12-30
US20030199049A1	2003-10-23
US20090143573A1	2009-06-04
US4425433A	1984-01-10
US4708746A	1987-11-24
US5338366A	1994-08-16

Other References:

BEALL D S ET AL: "Conversion of hydrolysates of corn cobs and hulls into ethanol by recombinant Escherichia coli B containing integrated genes for ethanol production", BIOTECHNOLOGY LETTERS, vol. 14, no. 9, 1992, pages 857 - 862, XP002656343, ISSN: 0141-5492
LAWFORD H G AND ROUSSEAU J D: "Fuel ethanol from corn residue prehydrolysate by a patented ethanologenic Escherichia coli B.", BIOTECHNOLOGY LETTERS, vol. 14, no. 5, May 1992 (1992-05-01), pages 421 - 426, XP002656344, DOI: 10.1007/BF01021258

Attorney, Agent or Firm:

KRATZ, Rudy et al. (Suite 1600Chicago, Illinois, US)

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