The disclosure is directed to a process and an apparatus for providing a feedstock. A gaseous feed stream comprising at least one hydrocarbon is passed to a reforming unit followed by a water gas shift reaction zone to provide a first gaseous stream comprising H.sub.2, CO, and CO.sub.2. The first gaseous stream is fed a hydrogen separation zone to separate it into a hydrogen enriched stream and a second gaseous stream comprising CO, CO.sub.2 and H.sub.2. The second gaseous stream is fed to a CO.sub.2 to CO conversion system to produce a third gaseous stream comprising H.sub.2 and CO having a H.sub.2:CO molar ratio of less than 5:1. The third gaseous stream is fed as the feedstock for a gas fermentation unit to have increased stability and product selectivity.

The disclosure provides for the integration of a CO-consuming process, such as a gas fermentation process, with a CO.sub.2 to CO conversion system. The disclosure is capable of utilizing a CO.sub.2-comprising gaseous substrate generated by an industrial process and provides for one or more removal modules to remove at least one constituent from a CO.sub.2-comprising gaseous substrate prior to passage of the gaseous substrate to a CO.sub.2 to CO conversion system. The disclosure may further comprise one or more pressure modules, one or more CO.sub.2 concentration modules, one or more O.sub.2 separation modules, and/or a water electrolysis module. Carbon conversion efficiency is increased by recycling CO.sub.2 produced by a CO-consuming process to the CO.sub.2 to CO conversion process.

Methods and systems for the production of one or more products from a gas stream produced in a methanol production process. The method comprises converting at least a portion of a methane feedstock to a substrate comprising CO and H2. The substrate comprising CO and H2 is anaerobically fermented in a bioreactor to produce one or more alcohols. The method and system may further include process for the production of methanol processes for the production of acetic acid.

An improved dry grind system and method for producing a sugar stream from grains or similar carbohydrate sources and/or residues, such as for biofuel production. In particular, a sugar/carbohydrate stream, which includes a desired Dextrose Equivalent (DE) where DE describes the degree of conversion of starch to dextrose (aka glucose) and/or has had removed therefrom an undesirable amount of unfermentable components, can be produced after saccharification and prior to fermentation (or other sugar conversion process), with such sugar stream being available for biofuel production, e.g., alcohol production, or other processes. In addition, the systems and methods also can involve the removal of certain grain components, e.g., corn kernel components, including protein, oil and/or fiber, prior to fermentation or other conversion systems. In other words, sugar stream production and/or grain component separation occurs on the front end of the system and method.

A method and device for extracting oil from food waste is disclosed. Food waste is introduced into an elongated cylinder that is immersed under hot water. A drive shaft is actuated that simultaneously presses the food waste against an interior wall and moves the food waste through the cylinder. The content of the cylinder is subjected to steam treatment using a steam inlet in the cylinder. The combination of hot water, steam treatment and pressing recovers a high content of oil from the food waste.

A hydrothermal decomposition apparatus 17 as a biomass processing apparatus that decomposes a biomass material 11 into cellulose, hemicellulose, and lignin under a high temperature and high pressure condition to remove a lignin component and a hemicellulose component, a biomass solid discharging unit 18 that discharges a biomass solid (a hot-water insoluble component) 20 processed in the hydrothermal decomposition apparatus 17, and a slurrying vessel 21 communicating with the biomass solid discharging unit 18, into which water 19 is injected and the discharged biomass solid 20 is added to make it slurried are provided to an apparatus body 13, which is a processing vessel having a gas-liquid interface 13a.

The present disclosure generally relates to systems and methods utilizing regenerative agriculture for the procurement, production, refinement and/or transformation of low carbon intensity transportation fuels, including low carbon intensity biodiesel and/or renewable diesel, low carbon intensity biogasoline, low carbon intensity aviation, marine and kerosene fuels as well as fuel oil blends, low carbon intensity ethanol, and low carbon intensity hydrogen, that may be beneficially commercialized directly to consumers. In further aspects, the systems and methods of the present disclosure advantageously generate low carbon intensity comestibles, including sustainably-sourced meal and/or feed. The disclosed systems and methods may be utilized and optimized such that the resulting fuels and foodstuffs are characterized by a reduction in greenhouse gas production and a diminution in the fertilizer, pesticide and water required for producing the associated crop feedstocks.

Enzyme production in a bioprocessing facility that utilizes the enzyme that is produced. Enzyme is produced by one or more microorganisms grown on a co-product (e.g., one or more stillage compositions) of the bioprocessing facility.

Provided herein is a process for hydrolyzing a cellulosic feedstock to produce sugar. The process comprises introducing a pretreated cellulosic slurry to an inlet region of a plug flow hydrolysis reactor using a slurry introduction device that reduces the axial momentum of the slurry at the surface of the reactor contents. The cellulosic feedstock slurry is hydrolyzed in the plug flow hydrolysis reactor by contacting the cellulosic feedstock with at least cellulase enzymes to produce glucose. Also provided herein is a vertically-oriented, unmixed downflow hydrolysis reactor for hydrolyzing a pretreated cellulosic feedstock slurry which comprises such a slurry introduction device disposed in a top region thereof.

The invention provides a process for producing a fermentable gas stream from a gas source that contains one or more constituent which may be harmful to the fermentation process. To produce the fermentable gas stream, the gas stream is passed through a specifically ordered series of removal modules. The removal modules remove and/or convert various constituents found in the gas stream which may have harmful effects on downstream removal modules and/or inhibitory effects on downstream gas fermenting microorganisms. At least a portion of the fermentable gas stream is preferably capable of being passed to a bioreactor, which contains gas fermenting microorganisms, without inhibiting the fermentation process.