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Class 435/161 - Ethanol


Subclass of Class 435 - Chemistry: molecular biology and microbiology
Definition: Processes wherein the product synthesized is ethanol which
No. of patents: 411
Last issue date: 02/07/2012


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NumberTitleIssue Date
4514496Process for producing alcohol by fermentation without cooking
Alcohol is produced in a noncooking system by mixing a ground starchy material with mashing liquor at the range that the weight ratio of mashing liquor to ground starchy material is from 1.8 to 3.4 to form a slurry, without cooking, adding to the slurry a...
04/30/1985
4511656Direct fermentation of D-xylose to ethanol by a xylose-fermenting yeast mutant
A process for obtaining ethanol directly from D-xylose through fermentation of D-xylose by xylose-fermenting yeast mutants. The process provides for obtaining ethanol from hemicellulose hydrolyzates through yeast fermentation of D-xylose to ethanol. In ad...
04/16/1985
4511437Process for the continuous rectification of alcoholic fermates
A process for continuous rectification of a liquid mixture containing alcohols, particularly a liquid fermate, employs a plurality of distillation columns to which the liquid mixture is fed in parallel, and which have successively reduced operating pressu...
04/16/1985
4510242Process for producing fuel grade alcohol by solvent extraction and carrier gas stripping
Alcohol substantially free of water is prepared by fermenting a fermentable biomass feedstock in a fermentation unit, thereby forming an aqueous fermentation liquor containing alcohol; extracting said aqueous fermentation liquor with an organic solvent co...
04/09/1985
4508929Recovery of alcohol from a fermentation source by separation rather than distillation
Ethanol is recovered from fermentation products by a countercurrent extraction process which employs diethyl ether as the extraction solvent to form a diethyl ether-ethanol mixture. The ethanol is salted out by adding calcium chloride to the mixture, and ...
04/02/1985
4497896Fermentation of glucose with recycle of non-fermented components
A feedstock slurry of starch and acid is continuously moved through a high intensity tubular starch hydrolyzer to produce a fluid hydrolyzate containing glucose. This glucose-containing fluid is then fermented to form a fermentation product containing eth...
02/05/1985
4492808Method for separating ethanol from an ethanol containing solution
A process is disclosed for the separation of ethanol from an ethanol containing water solution, wherein the ethanol containing solution is extracted by means of a solvent which is in the liquid or supercritical state, the ethanol containing solvent phase ...
01/08/1985
4490468Production of ethanol by yeast using xylulose
Ethanol is produced by the fermentation of xylulose using yeast under fermentative conditions....
12/25/1984
4490469Production of ethanol by fermentation
The production of ethanol, particularly ethanol used as a fuel, optionally in conjunction with gasoline (petrol) may be produced from carbohydrate containing material, such as starch-containing material or sugar-containing material, by a solid phase ferme...
12/25/1984
4487785Continuous process for the fermentation of must to produce wine or ethanol
A continuous process for the fermentation of must to produce wine in a plurality of serially-connected fermentation vats comprises fermenting the must-containing medium in an initial fermentation zone employing one or more large fermentation vats, the vol...
12/11/1984
4477569Pentose fermentation with selected yeast
It has been found possible to ferment the pentose D-xylose directly to ethanol with the selected yeast Pachysolen tannophilus. At least an initial aerobic stage is desirable. Improved yields have been obtained when the yeast cells are recycled continually...
10/16/1984
4472501Process for manufacturing alcohol by fermentation
Ethanol is produced by culturing the microorganism Kluyveromyces cellobiovorus or Kloeckera apiculata in a medium containing, as a carbon source, an assimilable source of xylose, cellobiose or both. The carbon source may be provided in the form of hydroly...
09/18/1984
4464471Biologically engineered plasmid coding for production of ଲ-glucosidase, organisms modified by this plasmid and methods of use
A biologically engineered plasmid coding for the production of ଲ-glucosidase. The plasmid can be incorporated into various microorganisms to enable the microorganism to digest cellobiose, which is produced from cellulose by an endo- or exocellular c...
08/07/1984
4460687Fermentation method
A continuous process for producing ethanol by fermenting carbohydrate containing feed stocks at atmospheric pressure in a fermentor, in which a fermentation liquor stream is withdrawn from the fermentor, a yeast concentrate is recovered from said stream b...
07/17/1984
4455374Solar fermentation and distillation process
A solar fermentation process and distillation system for the manufacture of ethanol product suitable for blending with motor gasoline or as a substitute fuel for gasoline. Fermentation of starches or sugars is carried out in situ in solar collector tubes....
06/19/1984
4448881Fermentable sugar from the hydrolysis of starch derived from dry milled cereal grains
Starch derived from a dry milled cereal grain such as corn or milo is hydrolyzed to provide a sterile aqueous fermentable sugar solution which is especially adapted for fermentative conversion to ethanol with minimum thermal expenditure. Following an init...
05/15/1984
4447534Method of producing ethanol through fermentation of carbohydrates
Residue-free production of ethanol and unicellular protein in a gas-fluidized bed, in which ethanol production takes place in a gas-fluidized bed (stirred fluidized bed, fluid column), the particle fraction of which consists of a wet microorganism mass, e...
05/08/1984
4447535Process for the recovery of a concentrated stillage
A concentrated stillage with a high solids content may be recovered in such a manner that starch or starch-containing raw materials in a suitably crushed form are coaxially introduced into the center of a homogenizer together with enzymes, which are suita...
05/08/1984
4443543Semibatch ethanol production
A process for the production of ethanol from a carbohydrate substrate such as glucose comprising culturing a flocculant strain of Zymomonas mobilis such as ATCC 31822, in a semi-batch manner periodically allowing the flocculent cells to settle, removing t...
04/17/1984
4442206Method of using isotropic, porous-wall polymeric membrane, hollow-fibers for culture of microbes
Hollow fiber reactors for growing microbial cells. Isotropic hollow fibers are supported in a housing inoculated with cells. Nutrient medium passing through the lumen undergoes a pressure drop resulting in radial convective flow: the nutrient medium flows...
04/10/1984
4442210Process for the production of fermentation ethanol
Ethanol is recovered from a fermentation mixture by contact with a crystalline zeolite sorbent exemplified by ZSM-5, followed by desorption of concentrated ethanol. In one embodiment of this invention, the sorption step is conducted during fermentation to...
04/10/1984
4440861Solar apparatus and process
Solar apparatus for producing alcohol including a frame portion, a heating portion, a slurry-forming portion, a fermentation portion, a distillation portion, a condensation portion and a drying portion; the heating portion including a plurality of solar p...
04/03/1984
4427775Mycelial pellets having a support core
Spherical shaped mycelial pellets suitable for use in the biocatalytic conversion of organic compounds are prepared having a rigid spherical core surrounded by a porous webbed layer of structural integrity of a mycelial microorganism. The webbed layer is ...
01/24/1984
4426450Fermentation process and apparatus
A method for agitating and mixing a gas with a medium in a closed fermentation vessel comprising recirculating said medium through a venturi jet mixer whereby it is mixed with the gas under high shear conditions to form a mixture of gas saturated medium a...
01/17/1984
4425433Alcohol manufacturing process
A continuous process for the production of alcohol, preferably ethanol, from cellulosic materials. The cellulosic materials are delignified such that the hemicellulose and the cellulose can be subsequently acid hydrolyzed into simple sugars. These sugars ...
01/10/1984
4421856Fermentable sugar from the hydrolysis of carbohydrate polymer
The yield of fermentable sugar, largely glucose (dextrose), resulting from the acid catalyzed hydrolysis of a carbohydrate polymer such as starch or cellulose can be significantly increased by the addition to the hydrolysate under acid hydrolysis conditio...
12/20/1983
4420561Fermentation process
In an ethanol fermentation process in which an aqueous solution of fermentable sugar is converted by an ethanol-producing microorganism such as a yeast to a dilute aqueous solution of ethanol with the ethanol being present in the solution at a concentrati...
12/13/1983
4419448Continuous fermentation in series of main vessels with auxiliary vessel provided
An apparatus for continuously producing alcohol by fermenting a mash containing starch, sugar, and similar carbohydrates includes a series of main fermentation vessels and an auxiliary fermentation vessel. The mash, in mixture with yeast, is transferred i...
12/06/1983
4416989Method of continuous treatment of grain mash for producing ethanol
A method of continuous treatment of grain mash for production of ethanol includes enzymatic liquefying of starch-containing particles of raw material in a liquefying container, separating not decomposed coarser particles of raw material in the container, ...
11/22/1983
4415659Method for mashing starch-rich material for alcohol production
This invention relates to a method for mashing starch-rich material, for example whole grain or partially crushed grain, when manufacturing alcohol. The method has a very low energy consumption, because the amount of water added to the starch-rich materia...
11/15/1983
4414330Process for continuously grinding and mixing starch-containing raw materials
Starch-containing raw materials for the saccharification can be ground at a higher rate and with more economy of energy by mashing the material with hot water, pre-gelatinizing it and then grinding it in the shearing field of a rotor-stator machine having...
11/08/1983
4413058Continuous production of ethanol by use of flocculent zymomonas mobilis
Ethanol is produced by means of a floc-forming strain of Zymomonas mobilis bacteria. Gas is vented along the length of a column containing the flocculent bacteria to preclude disruption of liquid flow....
11/01/1983
4409329Saccharification method
Enzymic conversion of cellulose under mechanical shear rate of from 50,000 to 200,000 feet/minute/foot as imparted to the cellulose by a series of rotors and stators mounted in the reaction vessel improves yield of simple sugars....
10/11/1983
4407955Fermentable sugar from the hydrolysis of starch derived from dry milled cereal grains
Starch derived from a dry milled cereal grain such as corn or milo is hydrolyzed to provide a sterile aqueous fermentable sugar solution which is especially adapted for fermentative conversion to ethanol with minimum thermal expenditure. Following a preli...
10/04/1983
4407954Fiber fermenter
A method and apparatus particularly useful for producing alcohols such as ethanol from sugars such as glucose. The apparatus comprises a container for holding a selected nutrient solution, a substrate comprising a multiplicity of fibers suitable for suppo...
10/04/1983
4403034Ethanol Production
A method of producing ethanol (alcohol) comprising culturing in a suitable means a strain of Zymomonas mobilis which has a specific ethanol productivity at 30° C., pH5 and in a medium containing 300 g/l glucose of at least 4.0 g/g/h; a specific rate of g...
09/06/1983
4402792Apparatus for producing alcohol fuel
An apparatus and method for producing alcohol fuel in an efficient and continuous manner are provided. The apparatus and method utilize otherwise lost heat to reduce the amount of heat required to convert feed stock into alcohol fuel. The apparatus and me...
09/06/1983
4400469Production of ethanol from Jerusalem Artichokes
Discloed herein is a new method of producing ethanol from the Jerusalem Artichoke (Helianthus tuberosus) by removing the sugar juices from the stalk before the sugar moves down into the tubers and directly fermenting the sugar to produce ethanol, thereby ...
08/23/1983
4399000Process for producing absolute alcohol by solvent extraction and vacuum distillation
Alcohol substantially free of water is produced by a process comprising extracting an aqueous alcohol solution with an organic solvent system containing an extractant for said alcohol thereby forming an organic solvent-alcohol phase and an aqueous phase, ...
08/16/1983
4397877Heat treatment of active dried yeast and product thereof
Active dried yeast is treated to beneficiate subsequent fermentation activity and/or fermentation products of the yeast and to produce a beneficiated active yeast product by heating the dried yeast to a temperature of about 30° to about 60° C. for at le...
08/09/1983
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