Process for converting cellulosic materials into fuels and chemicals

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

Process for converting cellulosic materials into fuels and chemicals

Patent · Sat Jan 01 04:00:00 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.

Research Organization:: LOCKHEED MARTIN ENRGY SYST INC

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)

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
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
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
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
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
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
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
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
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
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
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

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Related Subjects

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

Process for converting cellulosic materials into fuels and chemicals

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References (12)

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