THE METHOD AND SYSTEM OF GENERATING METHANE AND ELECTRICAL ENERGY AND THERMAL

摘要

The method according to the invention concerns an anaerobic conversion of biomass into biogas in separated processes of hydrolysis and methane fermentation of biomass by means of methane mesophile, thermophile and psychrophile bacteria, contained in returned reflux. Cleaned biogas undergoes decomposition into methane and carbon dioxide. From part of methane and biogas standard gas fuel is produced, used for the engine of a current generating unit and a thermoregenerative cell generating electrical energy and heat. The system according to the invention consists ofa system of preparation of biomass ( 1 ) connected to a hydrolyser ( 2 ) and then to a series system of fermentation tanks and a composter ( 1 ), which co-operates with a system of returning and enriching reflux ( 4 ). A tank for raw biogas ( 5 ) is connected to a system for cleaning biogas ( 6 ) and then to a tank for cleaned biogas ( 7 ) connected to a system of biogas decomposition ( 8 ) and a gas mixer ( 11 ). The system ( 8 ) has outlets to the system of CO>2< processing ( l0 ) and to the system of methane processing ( 2 ) also connected to the gas mixer ( 11 ) connected to a tank for standard gas fuel ( 12 ), The tank ( 12 ) has a connection to the system of generating electrical energy and heat ( 13 ) and the system of heat processing ( 14 ).