126results about "Fermented solutions distillation/rectification" patented technology

The invention relates to a process for extracting alcohols from an initial mixture (1) comprising alcohols in aqueous phase, with:a distillative separation by an isopropanol-butanol distillation column (III) equipped at the top with a condenser (c3), intended for separating said mixture into a water-isopropanol azeotrope stream (6) at the top and into a water-butanol azeotrope stream (7) at the bottom,a distillative separation intended for separating the water-butanol azeotrope stream into water and butanol, by a hetero-azeotropic distillation system comprising at least one water-recovering water column (IV) and at least one butanol (9)-recovering butanol column (V) equipped with a reboiler (r5),such that a heat transfer is performed from the top water-isopropanol azeotrope stream (6) entering the condenser of the isopropanol-butanol distillation column (III), to the stream entering the reboiler of the butanol column (V).

The present invention discloses a method and a device for distilling liquid-process white liquor, belonging to the technical field of white liquor production. When the temperature at the top of the first distillation column rises to 85°C to 90°C, the obtained first steam mixture is condensed and introduced into the second distillation column. When the temperature at the top of the second distillation column rises to 70°C to 75°C, the obtained first liquid mixture is introduced into the third distillation column. When the temperature at the top of the third distillation column rises to 80°C to 85°C, the obtained second liquid mixture is introduced into the fourth distillation column. When the temperature at the top of the fourth distillation column rises to 90°C to 95°C, the obtained third liquid mixture and the second steam mixture in the third distillation column are introduced into the fifth distillation column. When the temperature at the top of the fifth distillation column rises to 85°C to 90°C, the obtained third steam mixture is obtained. It not only realizes the enrichment of beneficial flavor components and the removal of bad flavor components, but also realizes the continuous and high-efficiency production of white liquor.

Processes, systems and equipment are for treating a digestate resulting from the thin stillage of a bioethanol plant. They can include a decarbonizer system to reduce the carbon and water footprint in an ethanol plant and associated biogas plant by treating a digestate stream resulting from a thin stillage digester. The treatment includes heating the digestate stream to decompose ammonia bicarbonate contained in the digestate stream into ammonium and bicarbonate; and contacting the heated digestate stream with air so that a first portion of the ammonia is desorbed from the heated stream to mix with the air.

Distillation device by direct heating at the heart of the liquid to be distilled, energy-efficient and with low GHG emissions. Double distillation of alcohols is very energy-intensive. The subject of the invention is a distillation heating device by direct heating for a boiler 10 containing a liquid 23 comprising, depending on the size and use of the boiler 10, a certain number of tappings 26 made through the walls of the boiler and distributed around its periphery and on several horizontal levels, for example between levels 30 and 40, 40 and 40, 50 and the bottom of the boiler, electric immersion heaters, for example 31.1, 31.2, 41.1, 41.2, 51.1, 51.2, mounted in each tapping 26 and electrically connected to a power and control cabinet controlling the individual electrical supply of each immersion heater according to a defined heating program. Figure to be published for the abstract: [Fig 3]

Congener removal in ethanol production may be provided by fermenting a feedstock in a fermentation vessel, yielding a fermentation product including an organic solvent and water, and inert fermentation gases; distilling the fermentation product in a distillation column yielding a first solvent enriched stream; dehydrating the first solvent enriched stream yielding a second solvent enriched stream having a greater concentration of the organic solvent than the first solvent enriched stream and a water enriched solution; and sparging the water enriched solution with the inert fermentation gases in a sparging tank yielding a sparged solution and a vapor including volatile species present in the water enriched solution separated out from the sparged solution.

This disclosure describes methods to separate solids from liquids in a production facility. A process separates components in a defiber process stream by using two or more mechanical devices to separate the solids from the liquids based on density differences. The process produces animal feed products having a protein content ranging from approximately 45% to approximately 64%.

The present invention provides a system and method for removing ethyl acetate from an alcohol composition. [Solution] A system for removing ethyl acetate from an alcohol composition is provided, comprising: a pressure tank 25 defining a pressure-controllable chamber; a liquid inlet port 30 fluidly communicating with the pressure-controllable chamber and configured to receive a certain amount of alcohol composition in the pressure-controllable chamber; a gas outlet port fluidly communicating with the pressure-controllable chamber; a vacuum pump fluidly communicating with the gas outlet port; and a controller configured to operate the vacuum pump to establish a partial pressure in the pressure-controllable chamber for a selected time, and to preferentially remove ethyl acetate from the alcohol composition relative to other homologs in the homologous group to obtain a purified alcohol composition.

The invention discloses a fuel ethanol distillation method and device using secondary steam of a superheated steam fluidized bed dryer as a partial heat source, and the device comprises a negative pressure mash tower I, a negative pressure mash tower II, a low-pressure fine tower, a high-pressure fine tower, a molecular sieve adsorber group and a superheated steam fluidized bed dryer. The fermented mature mash enters the degassing section, a part of the fermented mash with gas removed enters the negative pressure mash tower I, and the other part enters the negative pressure mash tower II, and is heated by steam to obtain crude alcohol. The crude alcohol enters the low-pressure fine tower for further distillation after acid removal and dealdehyde removal in the acid removal section, and the light alcohol at the bottom of the tower and the alcohol after distillation enter the middle and lower part and the top of the high-pressure fine tower respectively. After distillation and concentration in the high-pressure fine tower, the light alcohol enters the molecular sieve attachment group together with the concentrated alcohol sent into the low-pressure fine tower for dehydration to obtain fuel ethanol. The negative pressure mash tower II in the device of the invention directly uses the secondary steam of the superheated steam fluidized bed dryer as a heat source, thereby saving steam consumption.

The present invention relates to a dry grind ethanol process in which post-distillation backset is subjected to aerobic fermentation to remove components that are inhibitory to an ethanolagen, such as yeast, allowing the utilization of an increased amount of post-distillation backset during the initial preparation of starch-containing substrates for the dry grind ethanol process. Aerobic fermentation of the post-distillation backset allows substantially higher backset recycle, resulting in fresh water savings and increased sustainability.

The present invention provides an apparatus for continuous rectification of alcohol, which relates to the technical field of alcohol distillation. It includes a main tank and an auxiliary tank. A conveying assembly is installed on the main tank. The conveying assembly includes a side tank and a water pump I. A heat absorption assembly is installed on the side tank. The heat absorption assembly includes a thin tank and an elbow. A steam condensation assembly is installed on the auxiliary tank. The steam condensation assembly includes a cold cavity and a hot cavity. A distillation assembly is installed on the main tank. The distillation assembly includes a partition plate and an electric heating plate. A diversion assembly is installed on the partition plate. This apparatus for continuous rectification of alcohol can, after each purification, due to the reduction of water content, increase the concentration of the solution remaining in the hot cavity. At the same time, the buttons in the side sleeve control water pump II and water pump II to convey the remaining solution to the previous link, enabling the separated solution to be promptly concentrated and purified, reducing the generation of residual liquid during the alcohol purification process, improving the purification rate of alcohol, and being applicable to the continuous rectification processing of alcohol.

The invention relates to the technical field of alcohol distillation and purification, and specifically to an alcohol distillation and purification device and a process thereof, comprising a wine retort body, a heating source installed at the bottom end of the wine retort body, a retort cover arranged above the wine retort body, a distillation pipe connected to the retort cover, and a condensing device connected to one end of the distillation pipe; the alcohol distillation and purification device and the process thereof, through the provided pushing and mixing element, can fully stir and disperse the wine lees at the top of the wine retort body while scraping the wine lees, thereby ensuring that steam can be smoothly raised in the subsequent distillation process, and can push the wine lees close to the annular groove along the center of the wine retort body while stirring the wine lees, thereby ensuring that the wine lees at the annular groove are fully removed, so that the retort cover can be tightly sealed with the wine retort body, and the effect of alcohol distillation and purification is further ensured.

A process for producing a concentrated aroma from an alcoholic beverage including treating an aroma fraction by evaporative perstraction to produce a treated aroma fraction and treating the treated aroma fraction by reverse osmosis to produce a concentrated aroma fraction.

A distillation apparatus (10) for spirits comprises a still (12) with a heating element (14), a helmet (16) as the upper termination of the still (12), and a rectification unit (20) with a first rectification unit (32) and a second rectification unit (42), each having two or more rectification trays (34, 44). The first rectification unit (32) is arranged above the second rectification unit (42). The first rectification unit (32) and the second rectification unit (42) are sequentially permeated by an upward flow of fluid for the purpose of enrichment. A condenser (22) serves to condense the enriched alcoholic fluid flow. A reflux line (54) extends between a first connection (72) at the second rectification unit (42) and a second connection (74) at the still (12). The second connection (74) is arranged above the first connection (72).A first spirit line (52) leads into an input (38) of the first amplifier unit (32). A second spirit line (54) leads into an input (48) of the second amplifier unit (42). An aromator valve unit (50) releases a fluid flow from the helmet (16) towards the first spirit line (52) in a first position and a fluid flow from the helmet (16) towards the second spirit line (54) in a second position.

A vacuum differential pressure distillation heat energy utilization machine for alcohol distillation, comprising: a pressure reduction device, wherein the pressure reduction device comprises a first tank (2), a material distribution pipe (3), a rotating shaft (11), rotating spoons (12) and a power generation module (16), and the pressure reduction device can reduce the pressure of evaporated alcohol vapor, so that the alcohol vapor can be cooled and liquefied more quickly; a heat exchange device, comprising a cooling cavity (6), a liquid storage cavity (8), a liquid pump (10), fins (9), a cover (13) and a rotating wheel (14), such that alcohol vapor can be cooled and liquefied, and heat energy of the alcohol vapor can be utilized; and a condensing device, comprising a liquid storage pipe (17) and a condensing pipe (18), such that alcohol vapor can be cooled, liquefied and discharged.

The present disclosure relates to a method and a system for continuous regeneration of high-proof ethanol in a dry mill ethanol plant by a dual-rectification process that uses waste heat from the vacuum system, including routing azeotrope vapor comprising ethanol and water from the first rectifier to a molecular sieve vessel to produce pure, dry ethanol and routing the resulting regenerant to a second rectifier to produce a high-proof condensate that can be directly injected back into the MS vessel for an additional dehydration. The present invention also allows for simultaneous direct injection of azeotrope vapor from the first rectifier to the second rectifier to produce additional condensates that can be directly injected into the second rectifier for a continuous and cyclical feed-and-regeneration cycle for the production of pure, high-proof dry ethanol.

The invention discloses a three-tower differential pressure alcohol production method and system, and relates to the technical field of alcohol production. The three-tower differential pressure alcohol production system provided by the invention comprises a first coarse tower, a second coarse tower and a fine tower, the first coarse tower is controlled to be a negative pressure tower, the second coarse tower is controlled to be a positive pressure tower, the fine tower is controlled to be a normal pressure tower, a pressure gradient is formed through negative pressure-positive pressure-normal pressure, and spontaneous flow and thermal coupling of steam are realized. The three-tower differential pressure mode is adopted, heat energy gradient utilization is driven, steam latent heat, waste water waste heat and vinasse waste heat are converted into driving force in the system, the production cost is remarkably reduced, the stable product quality is guaranteed, meanwhile, materials with different concentrations are treated in parallel through the three towers, continuous production is achieved, and the productivity is improved by 20% or above.

The present invention relates to a process of separating a target composition con- taining at least one oxygen containing organic compound as target compound having a lower boiling point than water or forming a minimum boiling azeotrope with water optionally in admixture with water from a crude composition having been produced in a biocatalyzed process and containing the at least one oxygen containing organic compound as target compound, water and biomass, wherein the process comprises the steps of feeding the crude composition into a single distillation unit, distilling it therein and withdrawing from the single distillation unit an overhead composition as target composition, a bottom composition and option- ally a side composition, wherein a portion of the overhead composition is refluxed into the single distillation unit, wherein compressed vapor is injected into the single distillation unit, wherein the compressed vapor is produced by compressing vapor of a refrigerant having been obtained by evaporating the refrigerant by heating it with the overhead composition, wherein the refrigerant comprises, based on the total weight of the refrigerant, at least 70% by weight of water.

A method is provided for recovering an amyl alcohol composition containing 1-pentanol, 2-methyl-1-butanol, and 3-methyl-1-butanol from a fusel oil-containing extract from an associated ethanol distillation process, directly and without using decantation to concentrate the fusel alcohol in the fusel oil-containing extract.

A process for producing an alcoholic beverage having reduced alcohol content compared to a first alcoholic beverage including combining an aroma fraction and a dealcoholised fraction with the first alcoholic beverage to produce an alcoholic beverage having reduced alcohol content.

The present invention relates to a system and method for distillation to reduce steam consumption has been disclosed. The system comprises of an analyser column 11, multiple pressure booster units (fan set-I 79, fan set-II 24, and fan set-III 29), a rectifier column 15, a plurality of evaporator units (30,12), a splitter unit 05, a plurality of de-superheating units (03, 80), and additional DDGS dryer unit 25. The integration of pressure booster units (fan set-I 79, fan set-II 24, and fan set-III 29) and additional DDGS dryer unit 05 increases the steam (vapor) production and reduces the steam (vapor) consumption in the system from external source and balances the optimization of process energy requirements, energy cost, and process carbon intensity.

A preparation method of a prepared food and a prepared food are provided. A food raw material is processed by rectification of brouillis, and volatile components in the food raw material are separated from the food raw material through an ethanol-water azeotropic mixture. Low-boiling fractions and high-boiling fractions that cause sensory discomfort are removed, while original aroma components in the food raw material are obtained. The original aroma components are added back to the food raw material to fully restore an original flavor of the food raw material. The ethanol-water azeotropic mixture can kill microorganisms in raw materials of the prepared food by processing the raw materials of the prepared food at a relatively low temperature, thereby ensuring a safety of the prepared food and meeting people's demands for a restoration degree of the prepared food and the requirements of environmental governance and sustainable development.

This disclosure describes energy efficient process to distill a process stream in a production facility. A process uses multiple effect evaporators, ranging from one evaporator to eight evaporators in each effect. The process arrangement shows an example of four effect evaporators, with a zero-effect evaporator having a single evaporator, a first-effect evaporator having a set of three evaporators, a second-effect evaporator having a set of three evaporators, and a third-effect evaporator having a set of evaporators to create condensed distillers solubles.

The present invention relates to the technical field of chemical equipment, and discloses an alcohol distillation column and an alcohol distillation system. The alcohol distillation column includes a distillation column body, a liquid inlet pipe, and a first packing layer. The liquid inlet pipe is used to introduce external raw materials into the distillation column body. The first packing layer is arranged inside the distillation column body and is located below the liquid outlet of the liquid inlet pipe. The first packing layer is formed by a plurality of liquid distributors, and the plurality of liquid distributors are distributed in a pyramid structure from top to bottom. Each liquid distributor is provided with a plurality of liquid outlet holes, and the bottom edge is provided with drip serrations. Among them, the pyramid structure means that in adjacent two layers of liquid distributors, the liquid distributor in the lower layer has one more liquid distributor than the liquid distributor in the upper layer, and the liquid distributor in the lower layer is staggered with the liquid distributor in the upper layer. This alcohol distillation column is not easily blocked in the packing layer, improving the quality and output of alcohol. The alcohol distillation system includes the above-mentioned alcohol distillation column, and this alcohol distillation system has a relatively high production efficiency and a relatively low production cost.

The present invention relates to a system and method for distillation to reduce steam consumption has been disclosed. The system comprises of an analyser column 11, multiple pressure booster units (fan set-I 79, fan set-II 24, and fan set-III 29), a rectifier column 15, a plurality of evaporator units (30,12), a splitter unit 05, a plurality of de-superheating units (03, 80), and additional DDGS dryer unit 25. The integration of pressure booster units (fan set-I 79, fan set-II 24, and fan set-III 29) and additional DDGS dryer unit 05 increases the steam (vapor) production and reduces the steam (vapor) consumption in the system from external source and balances the optimization of process energy requirements, energy cost, and process carbon intensity.

A rising film evaporator clean-in-place method includes flowing a cleaning solution into a rising film evaporator having fermentation broth residue on one or more of the tubes; removing the fermentation broth residue with the cleaning solution; and flowing the cleaning solution and fermentation broth residue out of the boiling tube evaporator. The fermentation broth residue is disposed on a titanium-w or Ti-2 surface of the tubes. The cleaning solution has a pH of 12 or greater. The temperature of the cleaning solution does not exceed 80 degrees Celsius within the rising film evaporator. A rising film evaporator clean-in-place system is also described.

A device for refining ethanol is disclosed, which includes a fermentation unit, a low-pressure column, a medium-pressure column, a high-pressure column and a membrane separation unit. A method for refining ethanol is disclosed, which specifically includes the following steps: after fermenting the biomass feedstock, feeding fermented mash into a low-pressure column and a high-pressure column which are connected in parallel for refining, mixing two column top distillates, and feeding the mixed column top distillates into a medium-pressure column for further rectification; and purifying the refined ethanol vapor with higher purity obtained after rectification in the medium-pressure column by a membrane separation unit to obtain high-concentration ethanol product vapor. The disclosure couples the differential pressure rectification and the membrane separation unit, adjusts the energy network structure, greatly reduces the vapor usage amount of the whole system, and has the advantages of good separation effect, high product quality and the like.

The invention relates to the technical field of Maotai liquor distillation and condensation equipment, in particular to a water-saving and energy-saving heat exchange device for the Maotai liquor industry and a control method.The device comprises a condensation tank, an air flow guide column and a heat exchange pipe, the air flow guide column and the heat exchange pipe are vertically arranged in the condensation tank, and the heat exchange pipe is of a spiral structure approximately; the rotational flow radius of the heat exchange tube is periodically changed; the air guide column is located in the middle of the heat exchange pipe, and an air guide blade is arranged at the lower end of the air guide column and located below the heat exchange pipe. The lower end part of the condensation tank is provided with an air flow inlet and a water outlet, and the top is provided with an exhaust port; a cooling water spraying part is arranged in the condensation tank and is positioned at the middle lower part of the heat exchange tube; the upper end of the heat exchange pipe is communicated with a wine steam input pipe, the lower end of the heat exchange pipe is communicated with a cooled wine discharge pipe, and the problems of high energy consumption and high water consumption generally existing in the traditional wine brewing industry are solved.

The invention relates to a process for the production of 1,4-butanediol comprising the preparation of a fermentation broth comprising 1,4-butanediol from renewable sources and water, separation of a liquid fraction comprising said 1,4-butanediol and water from one or more solid fractions, said liquid fraction comprising 2-pyrrolidone in an amount higher than 80 ppm, one or more passages of the resulting liquid fraction through a bed comprising one or more cation-exchange resins thereby providing an output pH of said liquid fraction from 4 to 2, one or more passages of the resulting liquid fraction through a bed comprising one or more anion-exchange resins thereby providing an output pH of said liquid fraction from 8 to 11, and the distillation of the liquid fraction thereby provided so as to obtain a composition having a concentration of said 1,4-butanediol higher than 99.0% by weight and comprising 2-pyrrolidone in an amount lower than 6 ppm. The resulting composition should exhibit an APHA color value after ageing of less than 30.

The present invention aims to provide a distillation apparatus for a distilled spirit, a method of producing a distilled spirit, and a distillation system for a distilled spirit that can reduce CO2 emissions while maintaining the quality of a distillate to be collected. The present invention relates to a distillation apparatus for a distilled spirit, including a distillation still and an electric furnace that externally heats the distillation still, and the like.

The disclosure is directed to an apparatus and method for recovering ethanol from a fermentation broth. The fermentation broth comprises microbial biomass, ethanol, methanol, ethyl acetate, at least one thiol, and at least one compound having 3 or more carbon atoms. The method comprises separating at least microbial biomass from the fermentation broth to generate a process stream; removing, in any order, from the process stream: ethyl acetate by reacting ethyl acetate with a base compound followed by distillation; at least one thiol by adsorption or reaction to disulfide; methanol by distillation; compounds having 3 or more carbon atoms by distillation; and recovering ethanol by distillation; wherein the distillations may be conducted in a single column or two or more columns.