Chemistry: molecular biology and microbiology – Micro-organism – tissue cell culture or enzyme using process... – Preparing oxygen-containing organic compound
Patent
1992-05-15
1994-09-20
Wityshyn, Michael G.
Chemistry: molecular biology and microbiology
Micro-organism, tissue cell culture or enzyme using process...
Preparing oxygen-containing organic compound
435161, 435162, 435262, 435276, 435209, 435105, 435288, 435813, 422140, 422234, 422225, C12S 100, C12P 710, C12P 706, C12N 942
Patent
active
053488717
ABSTRACT:
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.
REFERENCES:
patent: 3642580 (1972-02-01), Ghose
patent: 3765475 (1973-10-01), Mandels et al.
patent: 3966543 (1976-06-01), Cayle et al.
patent: 3972775 (1976-08-01), Wilke et al.
patent: 3990945 (1976-11-01), Huff et al.
patent: 4009075 (1977-02-01), Hoge
patent: 4220721 (1980-09-01), Emert et al.
patent: 4281063 (1981-07-01), Tsao et al.
patent: 4321328 (1982-03-01), Hoge
patent: 4326032 (1982-04-01), Grove
patent: 4338399 (1982-07-01), Weil et al.
patent: 4342831 (1982-08-01), Faber et al.
patent: 4425433 (1984-01-01), Neves
patent: 4440904 (1984-06-01), Woodward
patent: 4447534 (1984-05-01), Moebus et al.
patent: 4472501 (1984-09-01), Takasawa et al.
patent: 4487831 (1984-12-01), Day et al.
patent: 4564595 (1986-02-01), Neves
patent: 4612286 (1986-09-01), Sherman et al.
patent: 4713334 (1987-12-01), Fujishima et al.
patent: 4840903 (1989-06-01), Wu
patent: 4845033 (1989-04-01), Tegtmeier
patent: 4933283 (1990-06-01), Chen et al.
patent: 4978647 (1990-12-01), Scott et al.
patent: 4995985 (1991-02-01), Scott et al.
patent: 5248484 (1993-09-01), Scott et al.
patent: 5270189 (1993-12-01), Scott
Wilke, C. R. et al., Preliminary Cost Analyses for Enzymatic Hydrolysis of Newsprint, Biotechnol. & Bioeng, Symp. No. 6, 155-175 (1976).
Scott, C. D. et al., Tapered Fluidized Bed Bioreactors For Environmental Control and Fuel Production, Advances in Biotechnology, International Fermentation Symposium No. 6 (London, Ontario), 651-656 (1981).
Scott, C. D. et al., Fixed-Bed, Anaerobic Treatment of Wastewater for Energy Conservation and Methane Production, Proceedings of the 16th Intersociety Energy Conversion Engineering Conference, 583-585 (1981).
Scott, C. D. et al., Novel Developments in Bioreactor Design and Separations Technology, in Energy Applications of Biomass, M. Z. Lowenstein, Ed., Elsevier Applied Science, New York, 253-262 (1984).
Wright, J. D. et al., Design and Parametric Evaluation of an Enzymatic Hydrolysis Process (Separate Hydrolysis and Fermentation), Biotechnology and Bioengineering Symp. No. 17, 287-302 (1986).
Davison, B. H. et al., Ethanol Production From An Industrial Feedstock by Immobilized Zymomonas mobilis in a Fluidized-Bed Bioreactor, Biotechnology and Bioengineering Symp. No. 17, 629-632 (1986).
Scott, C. D., Dispersed-Phase Adsorbents for Biotechnology Applications, presented at the 2nd Internationl Conference on Separation Technology, Klais, FRG, 1-9 (1987).
Worden, R. M. et al., Dynamics of a Biological Fixed Film for Phenol Degradation in a Fluidized-Bed Bioreactor, Biotechnology and Bioengineering, vol. 30, 398-412 (1987).
Scott, C. D., Techniques for Producing Monodispersed Biocatalyst Beads for Use in Columnar Bioreactors, Annals of the New York Academy of Sciences, vol. 501, 487-493 (1987).
Wright, J. D., Ethanol from Biomass by Enzymatic Hydrolysis, Chemical Engineering Progress, 62-74 (Aug. 1988).
Davison, B. H. et al., Operability and Feasibility of Ethanol Production by Immobolized Zymomonas mobilis in a Fluidized-Bed Bioreactor, Appl. Biochem. Biotech., vol. 18, 19-34 (1988).
Woodward, Jonathan et al., Hydrolysis of Cellulose by Saturating and Non-Saturating Concentrations of Cellulase: Implications for Synergism, Bio/Technology, vol. 6, 301-304 (Mar. 1988).
Jones, E. O., et al., Kinetic Analysis of Bioconversion of Cellulose in Attrition Bioreactor, Biotechnology and Bioengineering, vol. 31, 35-40 (1988).
Scott, C. D. et al., Solute Diffusion in Biocatalyst Gel Beads Containing Biocatalysis and Other Additives, Enzyme Microb. Technol., vol. 11, 258-263 (May 1989).
Watson, J. S., et al., Adsorption of Sr by Immobolized Microorganisms, Applied Biochemistry and Biotechnology, vol. 20/21, 699-709 (1989).
Petersen, J. N. et al., Accumulation of Cu.sup.++ Onto Modified Bone-Gelatin Beads, Biotechnology Techniques, vol. 4, No. 6, 435-440 (1990).
Wilkins, E. et al., Performance of Immobilized Enzyme on Saccharification and Fermentaion of Agricultural Wastes and Wood Residues, J. Environ. Sci. Health, vol. A26, No. 6, 883-898 (1991).
Davison, B. H. et al., Simultaneous Fermentation and Separation of Lactic Acid in a Bioparticle Fluidized-Bed Bioreactor, Applied Biochemistry and Biotechnology, vol. 34/35, 431-439 (1992).
Davison, B. H. et al., A Proposed Bioparticle Fluidized-Bed for Lactic Acid Fermenation and Simultaneous Adsorption, Biotechnology and Bioengineering, vol. 39, 365-368 (1992).
Crueger et al. "Biotechnology: A Textbook of Industrial Microbiology", Sinauer Assoc., Sundenland, Mass. 1982 pp. 278-280.
Davison Brian H.
Faison Brendlyn D.
Scott Charles D.
Woodward Jonathan
Adams Harold W.
Marasco Joseph A.
Martin Marietta Energy Systems Inc.
Reardon T. J.
Smirman Preston H.
LandOfFree
Process for converting cellulosic materials into fuels and chemi does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process for converting cellulosic materials into fuels and chemi, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for converting cellulosic materials into fuels and chemi will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2429801