METHOD OF PRODUCING BIOMETHANE Russian patent published in 2015 - IPC C02F11/04 C02F1/46 

FIELD: chemistry.

SUBSTANCE: method includes anaerobic fermentation of organic substances in a methane tank with electrical activation of the medium with dc voltage of 0.2-36 V while stirring and bubbling the mass with the released biogas. The organic substances are fed into the methane tank with moisture content of 40-95%. Monitoring is carried out by measuring the value of current in the electrical circuit, calculating conductivity of the system, measuring the volume flow rate of the formed biogas and determining the current content of carbon dioxide gas in the biogas in the upper part of the methane tank. Electrical activation of methanogenesis is controlled by controlling current by setting a new value of current at the level of the sum of the present and calculated maximum current.

EFFECT: high content of methane in biogas, intensification of the process of producing biogas, high process stability and obtaining an end product with accurately defined parameters.

4 dwg, 1 ex