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Title: Efficient process for producing saccharides and ethanol from a biomass feedstock

Abstract

Described herein is a process for producing saccharides and ethanol from biomass feedstock that includes (a) producing an enzyme composition by culturing a fungal strain(s) in the presence of a lignocellulosic medium, (b) using the enzyme composition to saccharify the biomass feedstock, and (c) fermenting the saccharified biomass feedstock to produce ethanol. The process is scalable and, in certain aspects, is capable of being deployed on farms, thereby allowing local production of saccharides and ethanol and resulting in a reduction of energy and other costs for farm operators. Optional steps to improve the biomass-to-fuel conversion efficiency are also contemplated, as are uses for byproducts of the process described herein.

Inventors:
;
Publication Date:
Research Org.:
Auburn Univ., AL (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1351076
Patent Number(s):
9,617,574
Application Number:
14/205,779
Assignee:
Auburn University DOEEE
DOE Contract Number:
EE0003132
Resource Type:
Patent
Resource Relation:
Patent File Date: 2014 Mar 12
Country of Publication:
United States
Language:
English
Subject:
09 BIOMASS FUELS

Citation Formats

Okeke, Benedict C., and Nanjundaswamy, Ananda K. Efficient process for producing saccharides and ethanol from a biomass feedstock. United States: N. p., 2017. Web.
Okeke, Benedict C., & Nanjundaswamy, Ananda K. Efficient process for producing saccharides and ethanol from a biomass feedstock. United States.
Okeke, Benedict C., and Nanjundaswamy, Ananda K. Tue . "Efficient process for producing saccharides and ethanol from a biomass feedstock". United States. doi:. https://www.osti.gov/servlets/purl/1351076.
@article{osti_1351076,
title = {Efficient process for producing saccharides and ethanol from a biomass feedstock},
author = {Okeke, Benedict C. and Nanjundaswamy, Ananda K.},
abstractNote = {Described herein is a process for producing saccharides and ethanol from biomass feedstock that includes (a) producing an enzyme composition by culturing a fungal strain(s) in the presence of a lignocellulosic medium, (b) using the enzyme composition to saccharify the biomass feedstock, and (c) fermenting the saccharified biomass feedstock to produce ethanol. The process is scalable and, in certain aspects, is capable of being deployed on farms, thereby allowing local production of saccharides and ethanol and resulting in a reduction of energy and other costs for farm operators. Optional steps to improve the biomass-to-fuel conversion efficiency are also contemplated, as are uses for byproducts of the process described herein.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Apr 11 00:00:00 EDT 2017},
month = {Tue Apr 11 00:00:00 EDT 2017}
}

Patent:

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  • A process for producing ethanol from plant biomass is disclosed. The process in cludes forming a substrate from the biomass with the substrate including hydrolysates of cellulose and hemicellulose. A species of the fungus Paecilomyces, which has the ability to ferment both cellobiose and xylose to ethanol, is then selected and isolated. The substrate is inoculated with this fungus, and the inoculated substrate is then fermented under conditions favorable for cell viability and conversion of hydrolysates to ethanol. Finally, ethanol is recovered from the fermented substrate.
  • A process for producing ethanol from plant biomass is disclosed. The process includes forming a substrate from the biomass with the substrate including hydrolysates of cellulose and hemicellulose. A species of the fungus Paecilomyces which has the ability to ferment both cellobiose and xylose to ethanol is then selected and isolated. The substrate is inoculated with this fungus, and the inoculated substrate is then fermented under conditions favorable for cell viability and conversion of hydrolysates to ethanol. Finally, ethanol is recovered from the fermented substrate. 5 figs., 3 tabs.
  • This patent describes a process for producing ethanol from plant biomass is disclosed. The process includes forming a substrate from the biomass with the substrate including hydrolysates of cellulose and hemicellulose. A species of the fungus Paecilomyces, which has the ability to ferment both cellobiose and xylose to ethanol, is then selected and isolated. The substrate is inoculated with this fungus, and the inoculated substrate is then fermented under conditions favorable for cell viability and conversion of hydrolysates to ethanol. Finally, ethanol is recovered from the fermented substrate.
  • The present invention generally relates to processes for production of ethanol from cellulosic biomass. The present invention also relates to production of various co-products of preparation of ethanol from cellulosic biomass. The present invention further relates to improvements in one or more aspects of preparation of ethanol from cellulosic biomass including, for example, improved methods for cleaning biomass feedstocks, improved acid impregnation, and improved steam treatment, or "steam explosion."
  • This paper discusses a method of producing ethanol from biomass. It comprises the steps of providing biomass containing organic acid, mixing the biomass with water to form a biomass slurry, hydrolyzing the slurry in fuel fired hydrolysis means, utilizing the organic acid for catalyzing hydrolysis of the slurry, separating the slurry into liquid and solids after the hydrolyzing step, utilizing flue gas from the fuel fired hydrolysis means for drying the solids, and further processing the liquid to produce ethanol.