Biogas combustion power generation is a biogas utilization technology that has emerged with the continuous development of large-scale biogas tank construction and comprehensive utilization of biogas. It uses the biogas produced by anaerobic fermentation treatment on the engine and is equipped with a comprehensive power generation device to generate electricity and heat energy. Biogas power generation has the characteristics of efficiency, energy conservation, safety, and environmental protection, and is a widely distributed and cost-effective distributed energy source. Biogas power generation has been widely valued and actively promoted in developed countries. Biomass energy grid connection accounts for about 10% of the total energy in some Western European countries.
Biogas fermentation: The definition of biogas fermentation is: biogas fermentation, also known as anaerobic fermentation or anaerobic digestion, refers to the process in which organic matter (such as crop straw, weeds, human and animal manure, garbage, sludge, urban domestic sewage, and industrial organic wastewater, etc.) is decomposed and metabolized under anaerobic conditions by a variety of microorganisms with large numbers and different functions, ultimately producing biogas.
Biogas power generation: Biogas power generation technology is a new energy comprehensive utilization technology that integrates environmental protection and energy conservation. It utilizes a large amount of organic waste from industry, agriculture, or urban life (such as distiller's grains, livestock manure, urban garbage, and sewage), and produces biogas through anaerobic fermentation to drive the biogas generator set to generate electricity, and can fully utilize the waste heat of the generator set for biogas production.
The thermal efficiency of biogas cogeneration projects varies greatly depending on the type of power generation equipment used. For example, if a gas internal combustion engine is used, its thermal efficiency ranges from 70% to 75%. However, if a gas turbine and waste heat boiler are used, the thermal efficiency can reach over 90% with supplementary combustion.
The biogas power generation technology itself provides clean energy, which not only solves environmental problems in biogas engineering, consumes a large amount of waste, protects the environment, and reduces greenhouse gas emissions, but also turns waste into treasure, generating a large amount of heat and electricity, in line with the environmental protection concept of energy recycling and utilization, and also brings huge economic benefits.