Chemistry: molecular biology and microbiology – Micro-organism – tissue cell culture or enzyme using process... – Preparing oxygen-containing organic compound
Patent
1997-01-10
1998-03-31
Lilling, Herbert J.
Chemistry: molecular biology and microbiology
Micro-organism, tissue cell culture or enzyme using process...
Preparing oxygen-containing organic compound
435161, 435163, 435165, 435300, C12P 706, C12P 714
Patent
active
057337586
ABSTRACT:
An apparatus for enzymatic hydrolysis and fermentation of pretreated lignocellulosic material, in the form of a tower bioreactor, having mixers to achieve intermittent mixing of the material. Precise mixing of the material is important for effective heat and mass transfer requirements without damaging or denaturing the enzymes or fermenting microorganisms. The pretreated material, generally in the form of a slurry, is pumped through the bioreactor, either upwards of downwards, and is mixed periodically as it passes through the mixing zones where the mixers are located. For a thin slurry, alternate mixing can be achieved by a pumping loop which also serves as a heat transfer device. Additional heat transfer takes place through the reactor heat transfer jackets.
REFERENCES:
patent: 4514297 (1985-04-01), Enquist
patent: 4654308 (1987-03-01), Safi et al.
E.T.Reese & D.Y.Ryu; "Shear inactivation of cellulase of Trichoderma reesei", Jul., 1980; Enzyme Microb. Technol., pp. 239-240.
S.Mukataka; et al.; "Effects of Agitation on Enzymatic Hydrolysis of Cellulose in a Stirred-Tank Reactor" J. FERment. technol., vol. 61, No. 6, pp. 615-621, 1983.
Hinman, N.D.et al., "Preliminary Estimate of the Cost of Ethanol Production for SSF Technology"; Applied Biochemistry and Biotechnology; vol. 34/35, 1992 pp. 639-649.
Schell, D. et al, Technical and Economic Analysis of an Enzymatic Hydrolysis Based Ethanol Plant; Jun. 1991 SERI TP/232-4295.
Bailey, J. and Ollis, D., Design and Analysis of Biological Reactors; Biochemical Engineering Fundamentals: McGraw-Hill, New York, NY 1977.
Wieczorek,A. & Michalski, "Continuous ethanol production by flocculating yeast in the fluidized bed bioreactor"; FEMS Microbiology Reviews 14(1994)69-74. 3-18.
Biotech Abs 85-06827 Tengerdy "Trends Biotechnol" (1985) 3,4, pp. 96-99.
Eure Ruth
Lilling Herbert J.
LandOfFree
Tower reactors for bioconversion of lignocellulosic material does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Tower reactors for bioconversion of lignocellulosic material, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tower reactors for bioconversion of lignocellulosic material will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-51042