Chemistry: molecular biology and microbiology – Micro-organism – tissue cell culture or enzyme using process... – Preparing compound containing saccharide radical
Patent
1992-12-17
1994-12-06
Naff, David M.
Chemistry: molecular biology and microbiology
Micro-organism, tissue cell culture or enzyme using process...
Preparing compound containing saccharide radical
435105, 435277, C12P 1914, C12P 1902, D21C 100
Patent
active
053709993
ABSTRACT:
High-shear, microcavitation is used to shred and disintegrate fibrous lignocellulose-containing biomass to make the biomass more susceptible to hydrolysis. This process is preferably done with the biomass particles dispersed in a slurry created using only water. The process can be performed on slurries created with other liquids such as liquid ammonia, aqueous solutions of acid or alkali reagents, or enzyme solutions containing cellulase. High-shear microcavitation is carried out by subjecting the slurry to high-shear forces by injecting the slurry cross currently into a turbulent Couette flow created in a high-frequency, rotor-stator device. This microcavitation shatters the fibrous structure of the biomass in the slurry thereby creating a sheared slurry. The device has a chamber containing a fixed stator equipped with coaxial toothed rings meshing with opposing coaxial toothed rings coupled to a rotor that is coupled to a rotatable shaft.
REFERENCES:
patent: 1313403 (1919-08-01), Marsden
patent: 2191977 (1940-02-01), Schneider et al.
patent: 4333611 (1982-06-01), Zucker et al.
patent: 4409329 (1983-10-01), Silver
patent: 4564595 (1986-01-01), Neves
patent: 4600590 (1986-07-01), Dale
patent: 4923565 (1990-05-01), Fuentes et al.
patent: 4980023 (1990-12-01), Salkinoja-Salonen
patent: 4997488 (1991-03-01), Gould et al.
patent: 5037663 (1991-08-01), Dale
patent: 5116474 (1992-05-01), Fuentes et al.
patent: 5175275 (1992-12-01), Dobashi et al.
Dale et al., "A Freeze-Explosion Technique for Increasing Cellulose Hydrolysis," Biotech. & Bioeng. Symp. No. 12:31-43 (1982).
Park et al., "Effects of Nonionic Surfactant on Enzymatic Hydrolysis of Used Newspaper," Biotechnology and Bioengineering, vol 39:117-120 (1992).
Dale, "Cellulose Pretreatments: Technology and Techniques," Colorado State University, Annual Reports on Fermentation Processes, vol. 8, Chap. 11, p. 299 (1985).
Thompson et al., "Comparison of Pretreatment Methods on the Basis of Available Surface Area," Bioresource Technology, vol. 39:155-163 (1992).
Nystrom, "Discussion of `Pretreatments to Enhance Enzymatic and Microbiological Attack of Cellulosic Materials,`" Biotechnol. & Bioeng. Symp., vol. 5:221-224 (1975).
Diaz, "Discussion of `Domestic Cellulose Waste,`" Biotechnol. & Bioeng. Symp., vol. 5:23-26 (1975).
Superaton.RTM. "Homogenization, Dispersion and Reaction Machines" brochure, Dorr-Oliver Deutschland GmbH (1987).
Dellwg et al., "Ethanol Fermentation: Suggenstions for Process Improvements," Process Biochemistry, pp. 100-104 (Aug. 1988).
Colorado State University Research Foundation
Meller Michael V.
Naff David M.
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