Regenerative vapor energy recovery system and method for use with an ethanol plant. Regenerative vapors are partially condensed in a regenerative precondenser using a warm water stream. The warm water stream is fed to the regenerative precondenser and the partially condensed regenerative vapor stream is sent back to the ethanol plant where the stream is fully condensed using an existing condenser. The ethanol plant is thus operated at greater energy efficiency with lower operating costs than would be achieved with conventional systems.

Regenerative vapor energy recovery system and method for use with an ethanol plant. Regenerative vapors are partially condensed in a regenerative precondenser using a warm water stream. The warm water stream is fed to the regenerative precondenser and the partially condensed regenerative vapor stream is sent back to the ethanol plant where the stream is fully condensed using an existing condenser. The ethanol plant is thus operated at greater energy efficiency with lower operating costs than would be achieved with conventional systems.

Described herein is a method for preparing a flavor composition, typically a dehydrated and de-alcoholized flavor composition, by decreasing or removing water and ethanol from a strong alcoholic flavor composition. The method includes the steps of treating the strong alcoholic flavor composition by a dehydration process and dealcoholization process. Also described herein are flavor compositions obtainable by this method, flavored consumer products including the same and methods and uses thereof.

A method for processing raw plant material, especially legumes into protein having a nu-tritional and feed value, bioethanol, biogas and fertiliser materials characterised in that the raw plant material is subjected to a dehusking process, followed by the dehusked raw material being crushed and subjected to extraction with stirring, wherein the insoluble solid fraction is separated and subjected to enzymatic hydrolysis using liquefying and saccharifying enzymes, then subjected to ethanol fermentation, where the produced ethanol is distilled and the digestate is transferred as a substrate for biogas production, and the liquid fraction after the extraction process is subjected to a process of precipitation to a solid form in the form of protein precipitate, which is washed with extraction buffer, after which the liquid residue is removed and subjected to a biogasification process.

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.

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 present disclosure is directed to methods, approaches, devices, equipment, and systems for minimizing or reducing contamination in facilities implementing fermentation or distillation processes. In embodiments, the facility is a biofuel plant that produces fermentation product such as product alcohol like butanol. In some embodiments, the methods, approaches, devices, equipment, and systems are operable to implement clean in place contamination (CIP) mitigation techniques that can also include sterilize in place (SIP) mitigation techniques to decontaminate equipment including surfaces of the equipment that come in contact with materials used in the production of product alcohols. Other cleaning and contamination minimizing techniques are also described.

Methods of separating components traditionally considered as waste material from mold-fermented compositions are described. The waste components can be separated either from unfiltered compositions or from a separation stream separated from a composition. In some embodiments, filamentous fungus used in the production of the mold-fermented composition is specifically targeted for separation. Incorporation of separated waste components into various products are also described herein. In some embodiments, the separated components are used in alternative meat products and other foods designed for human consumption. Separated components can also be used in animal feed, as feed stock for other fermentation processes, or for use in treating food, creating cosmetics, or chemical processes.

Methods of separating components traditionally considered as waste material from mold-fermented compositions are described. The waste components can be separated either from unfiltered compositions or from a separation stream separated from a composition. In some embodiments, filamentous fungus used in the production of the mold-fermented composition is specifically targeted for separation. Incorporation of separated waste components into various products are also described herein. In some embodiments, the separated components are used in alternative meat products and other foods designed for human consumption. Separated components can also be used in animal feed, as feed stock for other fermentation processes, or for use in treating food, creating cosmetics, or chemical processes.

The present disclosure provides for organic solvent production via distillation and dehydration by: directing portions of a feed stream to a first and second distillation columns operating at a different pressures from each other, wherein the organic solvent is preferably an alcohol and more preferably ethanol; generating, in the first distillation column, a vaporous first overhead stream; directing the vaporous first overhead stream directly to a rectification system; generating, in the second distillation column, a vaporous second overhead stream; forming a condensed second overhead stream from the vaporous second overhead stream; directing, at least a portion of the condensed second overhead stream to the rectification system; generating, via the rectification system, a third overhead stream; directing at least a portion of the third overhead stream to a separation system; and generating, in the separation system, an enriched solvent stream.