Abstract: The present invention includes a process for producing a protein product from plants and yeasts. The process comprises the steps of: a) providing a thin stillage or a thin stillage concentrate; b) separating a protein concentrate from the provided thin stillage from a) by means of solid-liquid separation; c) diluting the protein concentrate from b) with an aqueous process liquid to a dry substance content of at most 15 wt. %, tempering the diluted protein concentrate to a temperature of at least 60° C.

Abstract: Methods combine the operations of a bioethanol production unit and a biogas unit and comprise: (a) mashing corn meal from a dry milling step with at least 0.1 t of dry matter in the form of whole stillage and at least 0.1 m3 of outflow from the biogas unit per tonne of corn meal; (b) feeding the mash from (a) to a cooking stage with mash temperatures below the gelatinization temperature of the starch in the corn meal, followed by an ethanol-forming fermentation step and then feeding the fermented mash to a distillation step; and (c) feeding the whole stillage from (b) to the mashing step in (a) and to the biogas unit.

Abstract: The invention relates to a process for a protein product from thin stillage, the process comprising the steps of: producing a first mixture from i) thin stillage and ii) a first aqueous solution or a first organic solvent; separating a solid phase from the first mixture by means of a first solid-liquid separation; producing a second mixture from i) the solid phase and ii) a second aqueous solution or a second organic solvent, provided that the first mixture and/or the second mixture must contain an organic solvent; and separating a solid phase from the second mixture by means of a second solid-liquid separation, wherein the solid phase comprises or includes the protein product.

Abstract: The present invention concerns a method for carrying out the combined operation of a bioethanol production unit and a biogas unit. The method comprises the following steps: a) mashing corn meal from a dry milling step with at least 0.1 t of dry matter in the form of whole stillage and at least 0.1 m3 of outflow from the biogas unit per tonne of corn meal, b) feeding the mash from a) to a cooking stage with mash temperatures below the gelatinization temperature of the starch inn the corn meal, followed by an ethanol-forming fermentation step and then feeding the fermented mash to a distillation step, c) feeding the whole stillage from b) to the mashing step in a) and to the biogas unit.

Abstract: The invention relates to a method for the biological in-situ methanation of CO2 and H2 in a bioreactor. The method includes feeding an organic substrate into the bioreactor wherein at least part of the organic substrate is converted to a biogas comprising methane and carbon dioxide by means of microorganisms. The organic substrate includes crude fiber and at least 0.15 kg of crude fiber per m3 bioreactor volume per day is fed into to the bioreactor. The bioreactor is operated at between about 20-45° C. H2 is fed to the CO2 into the bioreactor to produce methane.

Abstract: 1) A method for obtaining a concentrated protein-rich phase from residues of bioethanol production. 2.1) Previously, the separation of a protein-rich phase from whole stillage from bioethanol production has been achieved either by the addition of chemicals or by process steps that are complex in terms of equipment and/or energy. 2.2) Whole stillage from bioethanol production is fed to a solid-liquid separation, and the liquid phase (thin stillage) resulting from this is partially returned to the mashing process. This recirculation increases the raw protein content in the process. Part of the thin stillage is diluted and fed to a simple separation process without the addition of chemicals and temperature treatment, with a protein-rich phase being obtained. 2.3) A protein-rich phase is obtained from residues of bioethanol production.

Abstract: The invention relates to a method for producing biogas from lignocellulose-containing biomass, preferably from straw, and to a plant for carrying out said method.

Abstract: The invention relates to a process for producing biogas from fibrous substrate by anaerobic fermentation. The process is characterised in that a) the fibrous substrate is fed together with process liquid to a fermenter containing anaerobic microorganisms depending on the TSS content ascertained in this fermenter, b) the fibrous substrate is subjected to wet fermentation in this fermenter to produce biogas c) the output containing fermented fibrous substrate is drawn off from the fermenter and the TSS content in the fermenter is ascertained, d) the TSS content ascertained is compared with a fixed target range and e) depending on the result from d), step a) is repeated with adjusted amounts in order to comply with the target range for the TSS in the fermenter.

Abstract: The present invention concerns a method for carrying out the combined operation of a bioethanol production unit and a biogas unit. The method comprises the following steps: a) mashing corn meal from a dry milling step with at least 0.1 t of dry matter in the form of whole stillage and at least 0.1 m3 of outflow from the biogas unit per tonne of corn meal, b) feeding the mash from a) to a cooking stage with mash temperatures below the gelatinization temperature of the starch inn the corn meal, followed by an ethanol-forming fermentation step and then feeding the fermented mash to a distillation step, c) feeding the whole stillage from b) to the mashing step in a) and to the biogas unit.

Abstract: 1) A method for obtaining a concentrated protein-rich phase from residues of bioethanol production. 2.1) Previously, the separation of a protein-rich phase from whole stillage from bioethanol production has been achieved either by the addition of chemicals or by process steps that are complex in terms of equipment and/or energy. 2.2) Whole stillage from bioethanol production is fed to a solid-liquid separation, and the liquid phase (thin stillage) resulting from this is partially returned to the mashing process. This recirculation increases the raw protein content in the process. Part of the thin stillage is diluted and fed to a simple separation process without the addition of chemicals and temperature treatment, with a protein-rich phase being obtained. 2.3) A protein-rich phase is obtained from residues of bioethanol production.

Abstract: The invention relates to a method for obtaining at least one organic target product and biogas. The method is characterised in that a) organic substrate is introduced into an anaerobic fermentation process; b) in this anaerobic fermentation process a hydrolysis, acidification and methanation are performed using a mixed culture of bacteria and archaea without spatial separation; c) partial suppression of the anaerobic fermentation is realised, with the result that a part of the organic substrate is not completely decomposed to biogas or methane; d) at least one target product is enriched as an organic metabolite of at least one microorganism in the fermentation process by deliberate incomplete composition of the organic substrate; e) the biogas formed in the anaerobic fermentation process is recovered for further use; and f) at least one organic target product is obtained from the anaerobic fermentation process for further use.

Abstract: The invention relates to a process for producing biogas from fibrous substrate by anaerobic fermentation. The process is characterised in that a) the fibrous substrate is fed together with process liquid to a fermenter containing anaerobic microorganisms depending on the TSS content ascertained in this fermenter, b) the fibrous substrate is subjected to wet fermentation in this fermenter to produce biogas c) the output containing fermented fibrous substrate is drawn off from the fermenter and the TSS content in the fermenter is ascertained, d) the TSS content ascertained is compared with a fixed target range and e) depending on the result from d), step a) is repeated with adjusted amounts in order to comply with the target range for the TSS in the fermenter.

Abstract: The invention relates to a method for obtaining at least one organic target product and biogas. The method is characterised in that a) organic substrate is introduced into an anaerobic fermentation process; b) in this anaerobic fermentation process a hydrolysis, acidification and methanation are performed using a mixed culture of bacteria and archaea without spatial separation; c) partial suppression of the anaerobic fermentation is realised, with the result that a part of the organic substrate is not completely decomposed to biogas or methane; d) at least one target product is enriched as an organic metabolite of at least one microorganism in the fermentation process by deliberate incomplete composition of the organic substrate; e) the biogas formed in the anaerobic fermentation process is recovered for further use; and f) at least one organic target product is obtained from the anaerobic fermentation process for further use.

Abstract: The invention relates to a method for producing biogas from lignocellulose-containing biomass, preferably from straw, and to a plant for carrying out said method.