Title:
FLOW-THROUGH BIOLOGICAL CONVERSION OF LIGNOCELLULOSIC BIOMASS
Document Type and Number:
WIPO Patent Application WO/2010/008578
Kind Code:
A3
Abstract:
The present invention is directed to a process for biologically converting carbohydrates from lignocellulosic biomass comprising the steps of: suspending lignocellulosic biomass in a flow-through reactor, passing a reaction solution into the reactor, wherein the solution is absorbed into the biomass substrate and at least a portion of the solution migrates through said biomass substrate to a liquid reservoir, recirculating the reaction solution in the liquid reservoir at least once to be absorbed into and migrate through the biomass substrate again. The biological converting of the may involve hydrolyzing cellulose, hemicellulose, or a combination thereof to form oligosaccharides, monomelic sugars, or a combination thereof; fermenting oligosaccharides, monomelic sugars, or a combination thereof to produce ethanol, or a combination thereof. The process can further comprise removing the reaction solution and processing the solution to separate the ethanol produced from non-fermented solids.
Inventors:
HERRING CHRISTOPHER D (US)
LIU CHAOGANG (US)
BARDSLEY JOHN (US)
LIU CHAOGANG (US)
BARDSLEY JOHN (US)
Application Number:
PCT/US2009/004135
Publication Date:
March 25, 2010
Filing Date:
July 17, 2009
Export Citation:
Assignee:
MASCOMA CORP (US)
HERRING CHRISTOPHER D (US)
LIU CHAOGANG (US)
BARDSLEY JOHN (US)
HERRING CHRISTOPHER D (US)
LIU CHAOGANG (US)
BARDSLEY JOHN (US)
International Classes:
C12P7/10; C08B1/00; C12P19/14; C13K1/02; D21C3/22
Domestic Patent References:
| WO2004081207A1 | 2004-09-23 | |||
| WO2008155636A1 | 2008-12-24 | |||
| WO2009058276A1 | 2009-05-07 |
Foreign References:
| US20060088922A1 | 2006-04-27 | |||
| GB720004A | 1954-12-08 | |||
| US1882391A | 1932-10-11 |
Other References:
LARRY U L TAN ET AL: "Column cellulose hydrolysis reactor: An efficient cellulose hydrolysis reactor with continuous cellulase recycling", APPLIED MICROBIOLOGY AND BIOTECHNOLOGY, SPRINGER VERLAG, BERLIN, DE, vol. 25, no. 3, 1 December 1986 (1986-12-01), pages 250 - 255, XP009114857, ISSN: 0175-7598
TU MAOBING ET AL: "Recycling cellulases during the hydrolysis of steam exploded and ethanol pretreated lodgepole pine", BIOTECHNOLOGY PROGRESS,, vol. 23, no. 5, 1 September 2007 (2007-09-01), pages 1130 - 1137, XP002561823
DATABASE INFORMATION BRIDGE [online] DOE Scientific and Technical Information; 8 February 2008 (2008-02-08), XP002564227, retrieved from HTTP://WWW.OSTI.GOV/BRIDGE/INDEX.JSP Database accession no. 6527601 (OSTI ID)
TU MAOBING ET AL: "Recycling cellulases during the hydrolysis of steam exploded and ethanol pretreated lodgepole pine", BIOTECHNOLOGY PROGRESS,, vol. 23, no. 5, 1 September 2007 (2007-09-01), pages 1130 - 1137, XP002561823
DATABASE INFORMATION BRIDGE [online] DOE Scientific and Technical Information; 8 February 2008 (2008-02-08), XP002564227, retrieved from HTTP://WWW.OSTI.GOV/BRIDGE/INDEX.JSP Database accession no. 6527601 (OSTI ID)
Attorney, Agent or Firm:
COVERT, John, M. et al. (Kessler Goldstein & Fox P.L.L.C.,1100 New York Avenue, N.W, Washington DC, US)
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