Biogas combustion power generation is a biogas utilization technology that has emerged with the continuous development of large-scale biogas digesters and comprehensive utilization of biogas. It uses the biogas produced by anaerobic fermentation treatment for engines and is equipped with a comprehensive power generation device to generate electrical and thermal energy. Biogas power generation has the characteristics of efficiency, energy conservation, safety, and environmental protection, and is a widely distributed and inexpensive distributed energy source.
Biogas power generation has been widely valued and actively promoted in developed countries. Biomass power generation and grid connection account 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 various types, quantities, and functions of microorganisms, 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) to produce biogas through anaerobic fermentation treatment, which drives a biogas generator set to generate electricity and can fully utilize the waste heat of the generator set for biogas production. [1]
The thermal efficiency of biogas power generation cogeneration projects varies greatly depending on the power generation equipment. For example, using a gas internal combustion engine has a thermal efficiency between 70% and 75%, while using a gas turbine and waste heat boiler, with supplementary combustion, the thermal efficiency can reach over 90%.
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 also brings huge economic benefits.