111 results about "Alcohol production process" patented technology

The invention relates to a novel equipment and a method of ethanol fuel production. The water resource in a preparation unit of liquefied wort is the washing water in a CO₂ washing tower. A recovery tower pot collects waste water and a portion of liquor condensate by vaporing when waste water is dealt with to send to a mixing machine of the preparation unit of liquefied wort. And the consumption of fresh water is zero. The process of rectification and dehydration adopts technology of multieffect thermal coupling rectification. Only when the recovery tower pot uses fresh vapor to heat, the energy consumption of the process of rectification and dehydration is reduced largely. The waste wort solution produced by the alcohol production process which is dealt with by the device for pneumatic drying, multieffect evaporation of clear liquid, being anaerobic and oxygen consumption of the vapored condensate liquor and purifying by using ultrafiltration membrane etc, can be recovered with the valuable product. The reasonable treatment plan realizes zero discharge of technique waste water when in the ethanol fuel production.

The invention relates to the production of products such as alcohols and acids by microbial fermentation, particularly microbial fermentation of substrates comprising CO. It more particularly relates to methods and systems for improving efficiency of production products by microbial fermentation. In particular embodiments, the invention provides a method of controlling substrate supply, such that production of desired metabolites is optimised.

The invention relates to the production of alcohols by microbial fermentation, particularly to production of alcohols by microbial fermentation of substrates comprising CO. It more particularly relates to processes for the production of alcohols from their corresponding acids in the presence of a substrate comprising CO. In particular embodiments, a fermentation reaction producing acid(s) and optionally alcohol(s) is perturbed such that at least a portion one or more of acid(s) is converted to alcohol.

A method comprising applying a controlled flow cavitation apparatus to an alcohol production process in order to increase alcohol yield. A grain-based liquid medium comprising grain and a liquid carrier can be passed through a controlled flow cavitation apparatus at a velocity capable of generating a hydrodynamic cavitation zone where the grain size can be reduced. One or more controlled flow cavitation apparatuses can be applied at various points of an alcohol production process, such as a starch-to-ethanol production process.

The invention relates to a method of an alcohol production process in which anaerobic effluent is taken as ingredient water. The method comprises the following steps of: mixing raw materials with deaminized anaerobic effluent in a specified material to water ratio; adjusting pH value and adding liquefied enzyme, heating, digesting and liquefying; cooling, and adding saccharified enzyme for saccharifying; lowering the temperature, inoculating and fermenting; distilling; precipitating sulfate radicals before performing anaerobic treatment on the distilled effluent obtained by distilling; and performing anaerobic treatment on the distilled effluent, and performing deamination treatment to obtain ingredient water for fermenting a next batch of alcohol. By adopting method, the running stability of the process in which the anaerobic effluent is taken as the ingredient water is enhanced, the content of hydrogen sulfide in marsh gas obtained by fermenting anaerobic marsh gas is lowered, and subsequent use of the marsh gas is facilitated.

The invention relates to a composite process of fuel alcohol and edible alcohol. In the production process of alcohol products, fermented mash mature in a self-fermentation unit enters a rough distillation column, crude alcohol distilled from the top of the rough distillation column is fed into a rectification column (2), liquid alcohol distilled from the side of the rough distillation column column is fed into a feed inlet of a rectification column (1), vapor phase objects distilled from the top of the rectification column (1) are fed into a molecular sieve absorption column, and thus, fuel alcohol is obtained. In the production process of edible alcohol products, objects distilled from the top of the rough distillation column and the top of the rectification column (1) and partial objects distilled from the boiler of the rectification column (2) are all fed into an aldehyde disengagement column, liquid alcohol distilled from the boiler of the aldehyde disengagement column is fed into the rectification column, and then, the liquid alcohol is distilled from the top of the column and fed into a reclaiming column as feed; the liquid alcohol is distilled from the side of the upper part of the rectification column (2) and fed into the feed inlet of a rectification column (3) , and qualified edible alcohol is distilled from the boiler of the rectification column (3). The invention realizes multiple varieties of alcohol products on the same device, effectively decreases consumption in materials and energy in the production process of fuel alcohol and edible alcohol, reduces the investment on device, and improves the market competitiveness of the fuel alcohol and the edible alcohol.

This invention has publicized one kind of ethyl alcohol production mix raw material fermentation process, Including raw material processing, mixes the material, the steam boiling to liquefy, the saccharification, the fermentation, the distillation working procedure, in raw material processing working procedure, the starchiness raw material smashing, presses out the sugar cane the juice to filter the sugar cane juice, starchiness raw material powder and sugar cane juice weight allocated proportion for 1:1-1:10. Starch quality raw material is cassava trunk, corn, potato, wheat, barley or the trunk of sweet potato. The beneficial effect of this invention are: increased sugar cane juice in the total sugar concentration, and lower raw material Organization of starch concentration of the solids, improve mobility, enhance mature Organization alcohol concentration, the amount of steam distillation savings, and also reducing units tons of alcohol Pai worse, worse reduce waste handling capacity, but also more easily spoil waste processing, alcohol production process so that environmental protection.

The invention relates to a method for improving activated sludge concentration in the alcohol wastewater full-distillage anaerobic digestion process. Corn, wheat, paddy rice, sweet potato, sugar-cane, cassava, sweet sorghum and plant straw containing cellulose from the alcohol production process serve as raw materials; and full-distillage waste mash produced in the alcohol production process is subjected to processes of two-stage anaerobic, aerobic, anaerobic activated sludge separation, anaerobic activated sludge concentration and recovery, liquid solid separation, dry-distillage combustion and advanced wastewater treatment. Primary anaerobic effluent containing sludge exhausted from a primary anaerobic jar is fed to an activated sludge recovery device. In the activated sludge recovery device, the primary anaerobic effluent passes through screening equipment to obtain an undersized material of the activated sludge-enriched primary anaerobic water and a sludge-enriched oversized material; and the COD concentration of secondary anaerobic effluent is below 500mg through the aerobic operation in an aerobic jar. The aerobic jar effluent is fed to an advanced wastewater treatment device, the COD concentration of the sewage subjected to the advanced treatment can be less than 100mg/L, and the sewage is discharged after reaching the standard.

The invention discloses an alcohol production process, and belongs to the technical field of alcohol production by a fermentation method. The alcohol production process includes the steps of 1) raw material acceptance: selecting potatoes with complete root blocks and uniform sizes as raw materials; 2) raw material purification: removing impurities such as silt, stones and metal in the potatoes by an impurity remover; 3) raw material crushing: crushing the raw materials by a crusher to obtain raw material powder; 4) precooking and puffing: adding amylase according to a fixed feed liquid ratio and precooking the raw materials in a precooking pot; 5) cooking gelatinization: adjusting a PH (potential of hydrogen) value, adding amylase and cooking the raw materials in a cooker; 6) saccharification: saccharifying the raw materials in a saccharifying tank containing blended orange water; 7) fermentation; 8) distillation; and 9) cooling. The alcohol production process is mature, energy-saving, environment-friendly, simple to operate, applicable to industry, food and the like, and has a quite high economic value, and produced alcohol is high in concentration.

The present invention is directed to improved systems and processes for clarifying a thin stillage stream in a biofuel production process, such as a dry grind alcohol production process, that removes desirable amounts of insoluble solids from at least a portion of the thin stillage stream, thereby realizing any number of process enhancements.

The invention relates to methods for the production of alcohols by microbial fermentation, particularly microbial fermentation of substrates comprising glycerol and/or acetate, to butanol.

A method of removing impurities, such as halogens, sulfurs, and corrosion metal impurities, in an ethanol production process. Ion exchange resins may be used to remove these impurities from acetic acid feed streams and recycle streams that comprise unreacted acetic acid.

The invention relates to the microbial fermentation of gaseous substrates, particularly to methods of mitigating and/or reducing alcohol toxicity effects on a microbial culture at elevated alcohol concentrations during fermentation. The invention relates particularly to microbial fermentation of substrates comprising CO and the effects of alcohol toxicity are reduced or mitigated by maintaining the temperature below the optimum operating temperature by cooling the fermentation broth.

The invention relates to a combined production method for fuel alcohol and edible alcohol. Fermented mash mature enters a rough distillation column, crude alcohol distilled from the top of the column is fed into a rectification column (2), liquid alcohol distilled from the side of the column is fed into a rectification column (1), vapor phase objects distilled from the top of the rectification column (1) are fed into a molecular sieve absorption column, and objects distilled from the top of the rectification column (1) are made into fuel alcohol under the adsorption effect of dehydrators on amolecular sieve. In the production process of edible alcohol, objects distilled from the top of the rectification column (1) are fed into an aldehyde disengagement column, objects distilled from the top of the rectification column (2) and partial objects distilled from a boiler of the column are also fed into the aldehyde disengagement column, liquid alcohol distilled from a boiler of the aldehyde disengagement column is fed into a product column, and thus, qualified edible alcohol is distilled from the upper side of the product column. The invention realizes multiple varieties of alcohol products on the same device, effectively decreases consumption in materials and energy in the production process of the fuel alcohol and the edible alcohol, reduces the investment on device, and improvesthe market competitiveness of the fuel alcohol and the edible alcohol.

The invention provides a method for culturing microalgae by using alcohol wastewater and fermentation exhaust, which comprises the steps of anaerobic digestion of alcohol wastewater, microalgae culture, wastewater recovered mixture for alcohol fermentation, and the like. The method specifically comprises the following steps: carrying out anaerobic digestion on the alcohol wastewater; culturing the microalgae by using the liquid obtained by solid-liquid separation to obtain a microalgae thallus product or extracted biological grease, wherein fermentation exhaust is introduced to supplement the carbon source required by microalgae growth in the process; and recovering the microalgae purification liquid to the alcohol production mixture technique. The method for culturing microalgae by using the alcohol anaerobic wastewater and fermentation exhaust can eliminate the inhibiting action of ammonia nitrogen on alcohol fermentation, enhances the feasibility of alcohol fermentation by recovering treated wastewater, implements the zero discharge of the wastewater and fermentation exhaust in the alcohol production process, solves the key technical bottle neck for restricting the clean production of alcohol fermentation, and obtains the high-value microalgae thallus product or biological grease.

The invention provides an amino acid-containing cassava lees organic fertilizer. The organic fertilizer contains the following raw materials in parts by mass: 800-900 parts of cassava lees, 175-250 parts of plant ash, 50-100 parts of plant protein and 0.2-0.4 part of composite strain. The organic fertilizer provided by the invention is prepared through fermentation by adopting cassava lees as main raw material, the organic content is over 60%, the content of total nutrients is over 8.5%, the content of total amino acids is over 1%, the content of nitrogen phosphorus and potassium is over 2.3, and the water content is about 27%, the organic fertilizer is slightly alkaline, the death rate of ascaris eggs exceeds 99%, and the requirements of NY525-2012 are met; and moreover, the cost is low, the fermentation time is short, the whole fermentation process is controllable, the problem of incomplete fermentation or excessive composting is overcome, the environmental pollution caused by solid wastes is effectively reduced in the alcohol production process, and the production requirements of environmental protection are met.

The invention relates to a cotton straw fulvic acid and cellulose ethyl alcohol production process. Cotton straws serve as raw materials to produce fulvic acid and cellulose ethyl alcohol, and hemicellulose is hydrolyzed when the fulvic acid is extracted in the same process, fulvic acid extraction and hemicellulose hydrolysis are synchronously implemented in a pretreated manner, comprehensive by-products are pretreated, and high-purity cellulose is separated, so that cellulose pretreated black liquor and diastatic fermentation distillation waste mash sewage are treated and recycled by different systems. According to the process, production costs of cellulose ethyl alcohol are reduced from various links of a whole system, fulvic acid is produced by lignin, harmful materials are turned intowealth, fiber raw material resources are comprehensively utilized, and comprehensive economic benefits of cellulose ethyl alcohol production are improved.

In one embodiment, the invention is to a process for producing ethanol, comprising the step of providing from a distillation column in a carbonylation process a purified acetic acid stream comprising up to 25 wt. % water. The process further comprises the step of hydrogenating acetic acid of the purified acetic acid stream in the presence of a catalyst and under conditions effective to form a crude ethanol product comprising ethanol and water. Ethanol is recovered from the crude ethanol product.

The invention relates to methods for improving the efficiency of carbon capture in microbial fermentation of a gaseous substrate comprising CO and/or H2. In certain aspects the invention relates to improving the efficiency of carbon capture in the microbial fermentation of gaseous substrate comprising CO and/or H2 to produce alcohol(s) and/or acid(s). In particular the invention relates to methods for improving the efficiency of carbon capture in carboxydotrophic fermentation.