Systems and methods for continuously fermenting C5 and C6 saccharides
Abstract
This invention provides optimized fermentation of cellulosic and hemicellulosic sugars. Biomass-derived hemicellulosic and cellulosic sugars are independently conditioned and separately fermented, utilizing reuse and recycle of microorganisms, metabolic intermediates, and nutrients. Conditioned sugars can be fermented in separate vessels, where excess cells from glucose fermentation are conveyed to hemicellulose sugar fermentation along with raffinate from solvent recovery, to enhance productivity and product yield. Some variations provide a method of fermenting C5 and C6 sugars to fermentation products, the method comprising: fermenting a C6-rich sugar feed to a first fermentation product; fermenting a C5-rich sugar feed to a second fermentation product; removing microorganism cells from the first fermentor, to maintain a cell concentration within a selected range; conveying microorganism cells to a second fermentor; and removing microorganism cells from the second fermentor, to maintain a microorganism cell concentration that is greater than that in the C6-rich fermentor.
- Inventors:
- Issue Date:
- Research Org.:
- API Intellectual Property Holdings, LLC, Atlanta, GA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1568447
- Patent Number(s):
- 10316336
- Application Number:
- 15/605,930
- Assignee:
- API Intellectual Property Holdings, LLC (Atlanta, GA)
- Patent Classifications (CPCs):
-
C - CHEMISTRY C12 - BIOCHEMISTRY C12P - FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE {
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- DOE Contract Number:
- EE0006879
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 05/25/2017
- Country of Publication:
- United States
- Language:
- English
Citation Formats
Survase, Shrikant, Zebroski, Ryan, Adamos, Georgios, and Pylkkanen, Vesa. Systems and methods for continuously fermenting C5 and C6 saccharides. United States: N. p., 2019.
Web.
Survase, Shrikant, Zebroski, Ryan, Adamos, Georgios, & Pylkkanen, Vesa. Systems and methods for continuously fermenting C5 and C6 saccharides. United States.
Survase, Shrikant, Zebroski, Ryan, Adamos, Georgios, and Pylkkanen, Vesa. Tue .
"Systems and methods for continuously fermenting C5 and C6 saccharides". United States. https://www.osti.gov/servlets/purl/1568447.
@article{osti_1568447,
title = {Systems and methods for continuously fermenting C5 and C6 saccharides},
author = {Survase, Shrikant and Zebroski, Ryan and Adamos, Georgios and Pylkkanen, Vesa},
abstractNote = {This invention provides optimized fermentation of cellulosic and hemicellulosic sugars. Biomass-derived hemicellulosic and cellulosic sugars are independently conditioned and separately fermented, utilizing reuse and recycle of microorganisms, metabolic intermediates, and nutrients. Conditioned sugars can be fermented in separate vessels, where excess cells from glucose fermentation are conveyed to hemicellulose sugar fermentation along with raffinate from solvent recovery, to enhance productivity and product yield. Some variations provide a method of fermenting C5 and C6 sugars to fermentation products, the method comprising: fermenting a C6-rich sugar feed to a first fermentation product; fermenting a C5-rich sugar feed to a second fermentation product; removing microorganism cells from the first fermentor, to maintain a cell concentration within a selected range; conveying microorganism cells to a second fermentor; and removing microorganism cells from the second fermentor, to maintain a microorganism cell concentration that is greater than that in the C6-rich fermentor.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jun 11 00:00:00 EDT 2019},
month = {Tue Jun 11 00:00:00 EDT 2019}
}