skip to main content
DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Flow-through biological conversion of lignocellulosic biomass

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:
; ;
Issue Date:
Research Org.:
Mascoma Corporation, Waltham, MA (USA)
Sponsoring Org.:
USDOE
OSTI Identifier:
1136637
Patent Number(s):
8,765,428
Application Number:
13/054,750
Assignee:
Mascoma Corporation (Waltham, MA)
DOE Contract Number:  
FC36-07GO17057
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
09 BIOMASS FUELS

Citation Formats

Herring, Christopher D., Liu, Chaogang, and Bardsley, John. Flow-through biological conversion of lignocellulosic biomass. United States: N. p., 2014. Web.
Herring, Christopher D., Liu, Chaogang, & Bardsley, John. Flow-through biological conversion of lignocellulosic biomass. United States.
Herring, Christopher D., Liu, Chaogang, and Bardsley, John. Tue . "Flow-through biological conversion of lignocellulosic biomass". United States. https://www.osti.gov/servlets/purl/1136637.
@article{osti_1136637,
title = {Flow-through biological conversion of lignocellulosic biomass},
author = {Herring, Christopher D. and Liu, Chaogang and Bardsley, John},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2014},
month = {7}
}

Patent:

Save / Share:

Works referenced in this record:

Column cellulose hydrolysis reactor: An efficient cellulose hydrolysis reactor with continuous cellulase recycling
journal, December 1986

  • Tan, LarryU. L.; Yu, ErnestK. C.; Campbell, Nancy
  • Applied Microbiology and Biotechnology, Vol. 25, Issue 3
  • DOI: 10.1007/BF00253658

Recycling Cellulases during the Hydrolysis of Steam Exploded and Ethanol Pretreated Lodgepole Pine
journal, August 2007

  • Tu, M.; Chandra, R. P.; Saddler, J. N.
  • Biotechnology Progress, Vol. 0, Issue 0
  • DOI: 10.1021/bp070129d