Process for converting cellulosic materials into fuels and chemicals

Scott, Charles D; Faison, Brendlyn D; Davison, Brian H; Woodward, Jonathan

Title: Process for converting cellulosic materials into fuels and chemicals

Patent · Sat Jan 01 00:00:00 EST 1994

OSTI ID:869506

Scott, Charles D ^[1]; Faison, Brendlyn D ^[2]; Davison, Brian H ^[2]; Woodward, Jonathan ^[1]

Oak Ridge, TN
Knoxville, TN

A process for converting cellulosic materials, such as waste paper, into fuels and chemicals utilizing enzymatic hydrolysis of the major constituent of paper, cellulose. A waste paper slurry is contacted by cellulase in an agitated hydrolyzer. The cellulase is produced from a continuous, columnar, fluidized-bed bioreactor utilizing immobilized microorganisms. An attritor and a cellobiase reactor are coupled to the agitated hydrolyzer to improve reaction efficiency. The cellulase is recycled by an adsorption process. The resulting crude sugars are converted to dilute product in a fluidized-bed bioreactor utilizing microorganisms. The dilute product is concentrated and purified by utilizing distillation and/or a biparticle fluidized-bed bioreactor system.

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Research Organization:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)

DOE Contract Number:: AC05-84OR21400

Assignee:: Martin Marietta Energy Systems, Inc. (Oak Ridge, TN)

Patent Number(s):: US 5348871

OSTI ID:: 869506

Country of Publication:: United States

Language:: English

References (12)

Techniques for Producing Monodispersed Biocatalyst Beads for Use in Columnar Bioreactors Scott, Charles D. Annals of the New York Academy of Sciences, Vol. 501, Issue 1 Enzyme Engine https://doi.org/10.1111/j.1749-6632.1987.tb45760.x	journal	June 1987
A proposed biparticle fluidized-bed for lactic acid fermentation and simultaneous adsorption Davison, Brian H.; Scott, Charles D. Biotechnology and Bioengineering, Vol. 39, Issue 3 https://doi.org/10.1002/bit.260390317	journal	February 1992
Performance of immobilized enzyme on saccharification and fermentation of agricultural wastes and wood residues Wilkins, E.; Ramesh, Y. Journal of Environmental Science and Health . Part A: Environmental Science and Engineering and Toxicology, Vol. 26, Issue 6 https://doi.org/10.1080/10934529109375673	journal	August 1991
Dynamics of a biological fixed film for phenol degradation in a fluidized-bed bioreactor Worden, Robert Mark; Donaldson, Terrence L. Biotechnology and Bioengineering, Vol. 30, Issue 3 https://doi.org/10.1002/bit.260300311	journal	August 1987
Operability and feasibility of ethanol production by immobilizedZymomonas mobilis in a fluidized-bed bioreactor Davison, B. H.; Scott, C. D. Applied Biochemistry and Biotechnology, Vol. 18, Issue 1 https://doi.org/10.1007/BF02930815	journal	August 1988
Simultaneous fermentation and separation of lactic acid in a biparticle fluidized-bed bioreactor Davison, Brian H.; Thompson, James E. Applied Biochemistry and Biotechnology, Vol. 34-35, Issue 1 https://doi.org/10.1007/BF02920566	journal	March 1992
Kinetic analysis of bioconversion of cellulose in attrition bioreactor Jones, Evan O.; Lee, James M. Biotechnology and Bioengineering, Vol. 31, Issue 1 https://doi.org/10.1002/bit.260310106	journal	January 1988
Adsorption of Sr by immobilized microorganisms Watson, J. S.; Scott, C. D.; Faison, B. D. Applied Biochemistry and Biotechnology, Vol. 20-21, Issue 1 https://doi.org/10.1007/BF02936518	journal	January 1989
Accumulation of Cu++ onto modified bone-gelatin beads Petersen, James N.; Davison, Brian H.; Scott, Charles D. Biotechnology Techniques, Vol. 4, Issue 6 https://doi.org/10.1007/BF00159392	journal	January 1990
Tapered Fluidized Bed Bioreactors for Environmental Control and Fuel Production Scott, Charles D.; Hancher, Charles W.; Arcuri, Edward J. Scientific and Engineering Principles https://doi.org/10.1016/B978-0-08-025383-1.50107-7	book	January 1981
Hydrolysis of Cellulose by Saturating and Non–Saturating Concentrations of Cellulase: Implications for Synergism Woodward, Jonathan; Hayes, Mary K.; Lee, Norman E. Nature Biotechnology, Vol. 6, Issue 3 https://doi.org/10.1038/nbt0388-301	journal	March 1988
Solute diffusion in biocatalyst gel beads containing biocatalysis and other additives Scott, Charles D.; Woodward, Charlene A.; Thompson, James E. Enzyme and Microbial Technology, Vol. 11, Issue 5 https://doi.org/10.1016/0141-0229(89)90040-9	journal	May 1989

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Related Subjects

process
converting
cellulosic
materials
fuels
chemicals
waste
paper
utilizing
enzymatic
hydrolysis
major
constituent
cellulose
slurry
contacted
cellulase
agitated
hydrolyzer
produced
continuous
columnar
fluidized-bed
bioreactor
immobilized
microorganisms
attritor
cellobiase
reactor
coupled
improve
reaction
efficiency
recycled
adsorption
resulting
crude
sugars
converted
dilute
product
concentrated
purified
distillation
biparticle
waste paper
agitated hydrolyzer
cellulosic material
dilute product
reaction efficiency
cellulosic materials
fluidized-bed bioreactor
enzymatic hydrolysis
reactor utilizing
utilizing enzymatic
biparticle fluidized
paper slurry
cellobiase reactor
converting cellulosic
bioreactor utilizing
adsorption process
improve reaction
sorption process
bed bioreactor
major constituent
/435/422/

Title: Process for converting cellulosic materials into fuels and chemicals

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References (12)

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