Sugar – starch – and carbohydrates – Processes – Carbohydrate manufacture and refining
Patent
1993-03-26
1996-10-08
Lilling, Herbert J.
Sugar, starch, and carbohydrates
Processes
Carbohydrate manufacture and refining
127 1, 127 36, 435 99, 435105, 536724, 536127, C13K 102, C07H 106, C07H 100, C12P 1902
Patent
active
055627773
ABSTRACT:
A economically viable method for producing sugars using concentrated acid hydrolysis of biomass containing cellulose and hemicellulose is disclosed. The cellulose and hemicellulose in the biomass is first decrystallized and then hydrolyzed to produce a hydrolysate containing both sugars and acid. Silica present in the biomass can then be removed for further processing. The remaining solids are then subjected to a second decrystallization and hydrolyzation to optimize the sugar yields. An improved method for separating the sugars from the acid in the hydrolysate is also disclosed. The resulting sugar stream can then be fermented, using an improved method which allows both hexose and pentose sugars to be fermented simultaneously.
REFERENCES:
patent: 4242455 (1980-12-01), Muller et al.
patent: 4266981 (1981-05-01), Tsao et al.
patent: 4427584 (1984-01-01), Legrand
patent: 4556430 (1985-12-01), Converse et al.
patent: 4612286 (1986-09-01), Sherman et al.
patent: 4645541 (1987-02-01), DeLong
patent: 4668340 (1987-05-01), Sherman
patent: 4742814 (1988-05-01), Sinner et al.
patent: 4880473 (1989-11-01), Scott et al.
patent: 5084104 (1992-01-01), Heikkila et al.
patent: 5186673 (1993-02-01), Clausen et al.
Ooshima et al., "Simultaneous Saccharification and Fermentation of Cellulose: Effect of Ethanol on Enzymatic Saccharification of Cellulose," Biotechnology and Bioengineering, 27: 389-397 (1985).
Osburn et al., "The Butyl Alchohol-Isoprypl Alcohol Fermentation," Journal of Biological Chemistry, 121: 685-695 (1937).
Del Rosario et al., "Kinetics of Alcohol Fermentation at High Yeast Levels," Biotechnology and Bioengineering, 21: 1477-1482 (1979).
Ghose et al., "Rapid Ethanol Fermentation of Cellulose Hydrolysate. I. Batch Versus Continuous Systems," Biotechnology and Bioengineering, 21: 1387-1400 (1979).
Grethlein et al., "Comparison of the Economics of Acid and Enzymatic Hydrolysis of Newsprint," Biotechnology and Bioengineering, 20: 503-525 (1978).
Rudge et al., "Process Considerations for Scale-up of Liquid Chromatography and Electrophoresis," Separation Recovery and Purification in Biotechnology, pp. 122-152 (1986).
Freer et al., "Characterization of Cellobiose Fermentations to Ethanol by Yeasts," Biotechnology and Bioengineering, 25: 541-557, (1983).
Rose, "Alcoholic Beverages," Economic Microbiology, vol. 1, Academic Press, p. 20-41 (1977).
Seaman, "Kinetics of Wood Saccharification," Industrial and Engineering Chemistry, 37, 1: 43-52 (1945).
Broder et al., "Conversion of Cotton Trash and Other Residues to Liquid Fuel," Symposium of the American Society of Agricultural Engineers, pp. 189-200, Dec. 14-15, 1992.
Rovenski et al., "Study of Transformations of Plant Polysaccharides in the Presence of Acid Catalysists," Chemical Abstract, 109: 232958 (1988).
Popovtsev et al., "Component Composition and Balance of Hydrolysis Products in Carrying out Cooking Operations with the Use of Part of the Hexose Hydrolyzate on Raw Material Loading," Chemicals Abstracts, 116: 8091 (1992).
LaBerge et al., "Factors affecting losses of sugars during Acid Hydrolysis of Polysaccharides," Laboratory Practice, 19(11): 1121-23 (1970).
Qureshi et al., "Application of Continuous Substrate Feeding to the ABE Fermentation: Relief of Product Inhibiting Using Extraction, Perstraction, Stripping, and Pervaporation," Biotechnology Progress, 8: 382-390 (1992).
Karera et al., "Silicon-Based Materials from Rice Husk," Journal of Scientific & Industrial Research, 45: 441-448 (1986).
Deger et al., "Cellulose Degradation," Comm. Eur. Communities, 85-88 (1987).
Clausen et al., "Ethanol from Biomass by Concentrated Acid Hydrolysis and Fermentation," Symp. Papers Energy from Biomass & Wastes, 12: 1319-1342 (1988).
Seaman, "Key Factors in the Hydrolysis of Cellulose," American Chemical Society, 24, 2: 472-480 (1979).
Dunlap and Chiang, "Cellulose Degradation--A Common Link," in Chapter 2, Utilizing and Recycle of Agricultural Wastes and Residues, Michael L. Schuler, Ph.D. (editor), CRC Press, Inc., pp. 19-65 (1980).
Noon et al., "The Production of Alcohol Fuels via Acid Hydrolysis Extrusion Technology," Energy Research & Resource Development & The Kansas Energy Office (1982).
Fagan et al., "Kinetics of the Acid Hydrolysis of Cellulose Found in Paper Refuse," Environmental Science and Technology, 5(6): 545-547 (1971).
Barrier et al., "Integrated Fuel Alcohol Production Systems, Phase III," Experimental Facility Design Report, (1985).
Barrier et al., "Integrated Production of Ethanol and Coproducts from Agricultural Biomass," (1986).
Barrier et al., "Acid Hydrolysis Experimental Facility Results with Corn Stover," American Society of Agricultural Engineers, (1986).
Barrier et al., "Integrated Fuel Alcohol Production Systems, Phase III," Experimental Facility Design Report, Jan. 15, 1984--Jan. 15, 1985.
Barrier et al., "Integrated Fuel Alcohol Production Systems, Phase III," Second Annual Experimental Facility Design Report, Jan. 15, 1985--Jan. 15, 1986.
Tigney Technology Incorporated, "A Process Description for a Bagasse Refinery to Product Industrial Glucose and Non Cellulosic Coproducts," (1987-1988).
Cuzens John E.
Farone William A.
Arkenol, Inc.
Lilling Herbert J.
LandOfFree
Method of producing sugars using strong acid hydrolysis of cellu does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of producing sugars using strong acid hydrolysis of cellu, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of producing sugars using strong acid hydrolysis of cellu will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-54738