INSTALLATION FOR OBTAINING FEED BIOMASS FROM NATURAL GAS Russian patent published in 2022 - IPC C12M1/04 C12M1/34 

FIELD: microbiological industry.

SUBSTANCE: invention relates to the microbiological industry, in particular to plants for growing microorganisms on natural gas, but can be used for growing microorganisms on other substrates. The plant for obtaining feed biomass from natural gas consists of n+1 sequentially installed fermenters. Fermenters are equipped with all necessary technological pipes, with recirculation systems of liquid and gas phases. The gas supply system is equipped with a carbon dioxide purification unit and is designed in such a way that all the gas components of the nutrient medium - natural gas and oxygen, designed for the entire installation, are fed to the first fermenter, and the exhaust gas mixture from the previous fermenter is fed to the next one. At the same time, the spent gas mixture is fed from the last fermenter to the bio-oxidizer. The spent gas mixture from the installation can be returned completely to the first fermenter. The input of all process water and biologically purified water into the installation is also carried out in the first fermenter. The selection of culture liquid from the plant is carried out only from the last fermenter to the separation stage, where the culture liquid thickens and the condensed biomass is fed to plasmolysis and drying of the finished product, while the spent culture liquid is fed into a bio-oxidant. The bio-oxidant is made similarly to fermenters, but has significantly lower mass transfer characteristics. The bio-oxidant additionally includes a secondary settling tank, where the microbial biomass of activated sludge is condensed, which is partially fed for recycling and centrifugation with further feeding it to drying to obtain an additional protein product, and biologically purified water (BPW) is fed to the first fermenter.

EFFECT: invention ensures the achievement of a technical result consisting in increasing the productivity of fermenters included in the installation and increasing the efficiency of using the components of the gas medium - natural gas and oxygen, ensuring a completely closed cycle of using process water.

4 cl, 2 dwg, 1 tbl, 1 ex