461 results about "Alcohol production" patented technology

The invention relates to biological processes for producing one or more desired products, including alcohols such as ethanol and butanol. The processes comprise carrying out first and second fermentations of substrates in first and second bioreactors, wherein each fermentation produces one or more desired products and/or one or more by-products that can be utilised in the other fermentation. A product and/or by-product of the first fermentation is introduced to the second bioreactor during the fermentation, and a product and/or by-product of the second fermentation is introduced to the first bioreactor during the fermentation.

A method and system for the treatment of byproducts from the production of ethanol or alcohol spirits may include: a screw press to dewater the byproducts to produce a wet cake product and a filtrate product; and an anaerobic reactor to treat to filtrate product.

The invention relates to the fields of industrial microbiology and alcohol production. More specifically, the invention relates to improved production of butanol isomers by recombinant microorganisms containing an engineered butanol pathway and disrupted activity of the genes in pathways for the production of by-products during the fermentation when the microorganisms are grown in a fermentation medium containing acetate. In embodiments, recombinant microorganisms have an increased growth rate in a fermentation medium containing acetate as a C2 supplement.

The present invention provides methods and compositions for the chemical conversion of syngas to alcohols. The invention includes catalyst compositions, methods of making the catalysts, and methods of using the catalysts including techniques to maintain catalyst stability. Certain embodiments teach compositions for catalyzing the conversion of syngas into products comprising at least one C₁-C₄ alcohol, such as ethanol. These compositions generally include cobalt, molybdenum, and sulfur, and avoid metal carbides both initially and during reactor operation.

Improvements to biodiesel compositions, and methods for making those compositions more efficiently, are provided. Some variations of this invention provide processes for producing biodiesel and at least one C₁-C₄ alcohol, such as ethanol. Other variations provide certain biodiesel compositions containing C₂₊ alkyl esters. In some embodiments, biodiesel compositions are produced entirely from renewable resources.

The present invention provides methods and compositions for the chemical conversion of syngas to alcohols. The invention includes catalyst compositions, methods of making the catalysts, and methods of using the catalysts including techniques to maintain catalyst stability. Certain embodiments teach compositions for catalyzing the conversion of syngas into products comprising at least one C₁-C₄ alcohol, such as ethanol. These compositions generally include cobalt, molybdenum, and sulfur, and avoid metal carbides both initially and during reactor operation.

The invention discloses a brewing yeast strain, which has the classified name Saccharomyces cerevisiae Y09tj, and is preserved in Common Microorganism Center of China General Microbiological Culture Collection Center with the preservation number of CGMCC No.3476. The invention also provides a breeding method for the strain and a method for producing ethanol by quick high-temperature thick mash fermentation of starch. The strain is obtained by the following steps of: separating from common self-brewed sweet wine of peasant families; and performing ultraviolet mutagenesis for breeding. The brewing yeast strain CGMCC NO.3476 has the advantages of quick growth, strong fermentation capacity, high ethanol toxin resistance, and high-glucose concentration resistance of 62 percent (m/v) to the maximum. The average wine yield by the method is improved by 1.2 percent than that of other producing strains, and the wine yield can reach 16.0 percent (v/v); the fermentation period is short, and only 46 hours; the equipment utilization rate can be greatly improved; and the fermentation cost is greatly reduced.

The invention belongs to the field of food industries and discloses a high-purity isomaltose hypgather and alcohol co-production preparation method. The method comprises the following steps of: preparing high-purity glucose higher than 95 percent by compounding diastatic enzymes; through diastatic enzyme conversion, fermenting by using dry activity yeast to prepare superhigh-purity isomaltose hypgather (the total content of isomaltose, panose and isomaltotriose are not less than 70 percent, and the total content of isomaltose hypgather is not less than 90 percent); and meanwhile, co-producingalcohol of 18 percent (the recovery rate is not less than 90 percent). The method can realize the organic combination of the superhigh-purity isomaltose hypgather production and the alcohol production and has novel process, excellent product quality, reduced cost, economy and practicability.

The invention discloses a new cassava dreg alcohol production technology. The new production technology is characterized in that cassava dregs are separated from raw cassava or cassava dry plates to be separately performed steam boiling and saccharification, the dregs and water separation is performed to the cassava dregs after being saccharified, solid dregs are directly pulled out to be used as forage or fertilizer, and the filtrate of the cassava dregs saccharifing is used as the slurry-adjusting liquid of the raw cassava or the cassava dry plates. The production cycle of the method is short, the energy consumption is low, the operation is simple, and the product stability is high. The problem that the energy consumption of producing the cassava dregs alcohol is high and the pollution is serious are effectively solved, the economic efficiency of the cassava dregs is enhanced, the problem of the utilizing of the present cassava dreg wastes is solved, and the economic efficiency of cassava grain distilleries is enhanced.

This invention improves prior methods of making cobalt-molybdenum-sulfide catalysts for alcohol production from syngas. In one aspect, improved methods are provided for making preferred cobalt-molybdenum-sulfide compositions. In another aspect, processes utilizing these catalysts for producing at least one C₁-C₄ alcohol, such as ethanol, from syngas are described.

The invention discloses a method for fermenting and preparing biological butyl alcohol by using lignocellulose biomass as raw material. Dilute acid is used to hydrolyze lignocellulose biomass to prepare multi-component sugar solution; detoxication treatment and sterilization treatment are conducted to the multi-component sugar solution through membrane separation method and adsorption separation method, sterilization treatment is conducted to the multi-component sugar solution through the membrane separation method, then sterilization treatment is conducted to fermentation culture medium containing no carbon source under high temperature, and finally the sterilized multi-component sugar solution and the sterilized fermentation culture medium containing no carbon source are combined together to prepare fermentation culture medium; butyl alcohol production strains are inoculated in the fermentation culture medium and biological butyl alcohol is prepared through fermentation; and solid-liquid separation treatment is conducted to the fermented liquid and the liquid is distilled to obtain butyl alcohol, acetone and ethyl alcohol. The invention solves the problems of 'striving for grains with people and striving for land with grains' and high raw material cost existing in the traditional butyl alcohol fermentation and production method, and realizes the multiple utilization of lignocellulose biomass.

The invention relates to a new method for producing alcohol by using potato raw material, which is mainly characterized in that: the pretreatment process of the raw materials of the dry potato chips adopts the two-level pulp-making production technique, thin pulp with a relatively low viscosity obtained by the level one material stirring and pulp making undergoes sand removing operation process, the thin pulp is subject to the secondary material stirring and pulp making to obtain a thicker powder pulp; a washing water mixture containing potato skins and sands which is drained from a fresh potato raw material water washing machine is separated by a liquid-solid separation device, the obtained clean liquid is returned to the water washing machine for continuous circulating usage; the washing water with the alcohol degree of 5 to 12 percent which is drained from a tower kettle of a CO2 washing tower is arranged to a rectification dehydration unit together with fermented mash after adding base solution, so as to ensure the acid value and the oxidation time of the produced alcohol to be qualified; a part of the clean liquid which is drained when the waste mash of the crude tower passes through the solid-liquid separation device is directly sent to a fresh potato pretreatment unit as the supplementary water of the washing water of the water washing machine for washing the cassava, thus reducing the production load of the evaporation and the concentration of the clean liquid, and the supplementary water of the cleaning water of the water washing machine does not consume other water.

Disclosed herein are processes for alcohol production by reducing an esterification product, such as ethyl acetate. The processes comprise esterifying acetic acid and an alcohol such as ethanol to produce an esterification product. The esterification product is reduced with hydrogen in the presence of a catalyst to obtain a crude reaction mixture comprising ethyl acetate, ethanol, and at least one alcohol having at least 4 carbon atoms. The ethanol is recovered with a reduced amount of the alcohol having at least 4 carbon atoms.

Systems and methods are provided for separating high value by-products, such as oil and/or germ, from grains used for alcohol production. In one embodiment, a method for separating by-products from grains used for alcohol production includes, subjecting milled grains to liquefaction to provide a liquefied starch solution including fiber, protein, and germ. The germ is separated from the liquefied starch solution. The separated germ is ground, e.g., to a particle size less than 50 microns, to release oil to provide a germ/oil mixture. Then, prior to fermentation, the oil is separated from the germ/oil mixture to yield an oil by-product. The pH of the germ/oil mixture can be adjusted to about 8 to about 10.5 and/or cell wall breaking enzymes or chemicals may be added to help release oil from the germ. In one example, the oil yield is greater than 1.0 lb/Bu.

The invention relates to a technological method for preparing high-purity ethyl alcohol through two-tower differential pressure rectification-film equipment-molecular sieve adsorption tower coupling. The technological method is mainly used for solving the problem that an existing high-purity ethyl alcohol production technology is high in energy consumption and not high in purity. Two rectification towers, a film and two molecular sieve adsorption towers are included, and the technological method mainly comprises the steps that 1, low-concentration ethyl alcohol raw materials are used as decompression rectification tower feed after being preheated through decompression rectification tower bottoms and tower top alcohol logistics steam in sequence, the tower top alcohol logistics steam enters the pressurization rectification tower after raw material condensation is carried out, ethyl alcohol positive pressure steam is obtained on the top of the pressurization rectification tower, and bottom residual liquid is obtained on the tower bottom; 2, the ethyl alcohol positive pressure steam enters film equipment and is separated through a film assembly, ethyl alcohol steam is located on a film outlet, and penetrating fluid containing a small amount of ethyl alcohol is located on the negative pressure side; 3, the ethyl alcohol steam on the film outlet enters the molecular sieve adsorption towers, and the high-purity ethyl alcohol is obtained. The penetrating fluid on the negative pressure side of the film equipment and a dilute solution reproduced through the molecular sieve adsorption towers can be returned back to the decompression rectification tower.

Disclosed herein are processes for alcohol production by reducing ethyl acetate produced by hydrogenating acetic acid in the presence of a suitable catalyst. The product of the acetic acid hydrogenation is fed directly to a decanter to separate the hydrogenation product into an aqueous phase comprising water and ethanol and an organic phase comprising ethyl acetate. The organic phase is reduced with hydrogen in the presence of a catalyst to obtain a crude reaction mixture comprising the alcohol, in particular ethanol, which may be separated from the crude reaction mixture. Thus, ethanol may be produced from acetic acid through an ethyl acetate intermediate without an esterification step. This may reduce the recycle of ethanol in the hydrogenolysis process and improve ethanol productivity.

The invention relates generally to the field of industrial microbiology and alcohol production. More specifically, the invention relates to the use of thiamine, biosynthetic precursors of thiamine, nicotinic acid, nicotinamid, nicotinic acid riboside, nicotinamid riboside, or other biosynthetic precursors of nicotine adenine dinucleotide (NAD) to improve butanol production. Butanol production can be improved by providing sufficient amounts of thiamine, biosynthetic precursors of thiamine, nicotinic acid, nicotinamid, nicotinic acid riboside, nicotinamid riboside, or other biosynthetic precursors of nicotine adenine dinucleotide (NAD) in the production media.

Production of fatty polycarbonate polyol is carried out by taking carbon dioxide/epoxide as raw materials, putting catalyst, epoxide and molecular-weight regulator into cyclic reactor and copolymerization reacting under action of the catalyst in cyclic reactor at 0.1-8MPa and 40-150degree for 0.5-48hrs. The main apparatus consists of cyclic reactor, condenser, vapor/liquid separator, high-pressure carbon dioxide buffer tank, carbon dioxide compressor and liquid cyclic pump, the said cyclic reactor is arranged with single draft tube and multiple draft tubes. It costs low and is efficient.

The present invention belongs to the technology of fermenting alcohol production, and is especially alcohol preparing airlift fermentation and separation coupling technological process and special equipment. The equipment is one airlift alcohol fermenting reactor, which includes one tank, one inner circulating guide tube concentrically set inside the tank, one gas distributor below the guide tube, and one active carbon adsorbing and desorbing unit comprising condensator and two parallelly connected adsorbing active carbon towers. The airlift alcohol bioreactor is maintained in a 4000-8000 Pa vacuum with a water ring pump; the two parallelly connected adsorbing active carbon towers are used to adsorb and desorb the pumped mixed gas alternately; and the condensator is used to collect the desorbed alcohol.

The invention discloses a method for treating molasses alcohol waste water. The method is characterized by comprising the following steps: (1) concentrating molasses alcohol waste water in an evaporator, thereby obtaining the concentrated slurry; (2) discharging waster water in the evaporator in a form of vapor condensed water, wherein the condensed water is recycled for alcohol production; (3) preparing dry powder after the concentrated slurry is incinerated in an incinerator; or (4) combusting the concentrated slurry with combustibility in a boiler to generate vapor; and (5) recycling the vapor for alcohol production and heating in waste water concentration. The method is main used for recycling water and solids and heat in the waster water and is a method for comprehensive treatment and utilization. The molasses alcohol waste water is concentrated in the evaporator, then is prepared into the dry powder, or the concentrated slurry with combustibility is combusted to generate vapor, and then the vapor is recycled for alcohol production and waste water concentration. The waste water in the evaporator is recycled for alcohol production in the form of vapor condensed water, thus an alcohol production closed-loop water system without waste emission is realized.

The invention relates to vertical light wine solid-state continuous fermentation equipment and a vertical light wine solid-state continuous fermentation process, and belongs to the technical field of alcohol production. The vertical light wine solid-state continuous fermentation equipment comprises a vertical fermentation tank, wherein a material distribution device is arranged at the upper part of the vertical fermentation tank, and a discharge port is formed in the lower part of the vertical fermentation tank; an upper discharge plug board and a lower discharge plug board are arranged at the discharge port, and are connected with and controlled by a gear mechanism to be alternately unplugged from or plugged into the vertical fermentation tank to control the continuous sinking discharge of fermented grains respectively. Materials are continuously fed into the fermentation tank and uniformly distributed at a feed port, are fermented into the fermented grains, continuously descend under the action of gravity at the same time, and are controlled by the upper and lower discharge plug boards to be continuously discharged, and the discharge speed is matched with the feeding speed to realize continuous fermentation. The equipment and the process are used for vertical continuous fermentation, and are favorable for improving the quality of a product, and the equipment and production running costs are lowered.

The invention provides a catalyst used for increasing selectivity of higher carbon alcohol production via Fischer-Tropsch synthesis, and a preparation method and applications thereof, and specifically relates to a catalyst used for increasing selectivity of high carbon primary alcohols (more than 6 carbon atoms) in mixed primary alcohols prepared via hydrogenation of CO, and a preparation method and applications of the catalyst. According to the catalyst, active carbon is taken as a carrier, Co element is taken as an active component, one or more elements selected from Al, B or Ga are taken as auxiliary agents. The catalyst comprises 1 to 30wt% of the active component (based on the content of Co), and 0.01 to 5wt% of the auxiliary agents. The catalyst is capable of increasing selectivity of the high carbon primary alcohols (more than 6 carbon atoms) in the mixed primary alcohols prepared via hydrogenation of CO. The high carbon primary alcohols can be used as main raw materials of washing agents, plasticizers, and the like.

Disclosed herein are processes for alcohol production by reducing an ethyl acetate produced by hydrogenating acetic acid in the presence of a suitable catalyst. The ethyl acetate is reduced with hydrogen in the presence of a catalyst to obtain a crude reaction mixture comprising the alcohol, in particular ethanol, which may be separated from the crude reaction mixture. Thus, ethanol may be produced from acetic acid through an ethyl acetate intermediate without an esterification step. This may reduce the recycle of ethanol in the hydrogenolysis process and improve ethanol productivity.