METHOD OF BIOGAS OBTAINING Russian patent published in 2014 - IPC C02F11/04 

FIELD: chemistry.

SUBSTANCE: method of biogas obtaining includes preliminary processing of an organic substrate by bringing it to 92% humidity with further crushing, introduction of a catalyst, fermentation in an anaerobic medium, and accumulation of biogas. As the catalyst used is a four-component mixture, which contains four classes of enzymes: protease, amylase, lipase and cellulase with their weight ratio of 3.2:0.3:15.6:1.0, the catalyst is introduced in a volume of 0.01 g/kg of weight of the dry organic substrate, and fermentation in the anaerobic medium is realised at a temperature from 17°C to 20°C. The application of the claimed method of biogas obtaining will make it possible to obtain a good methane output with comparatively low concentrations of the enzyme mixture.

EFFECT: intensification of the process of methane manure fermentation with an increase of the biogas output and increased content of methane in it.

1 dwg, 1 tbl