Analysis of relevant technologies for biogas power generation

my country has used biogas to generate electricity for more than 30 years, but the domestic biogas power generation research and application market are still in an imperfect stage. Biogas power generation has received widespread attention and active promotion in some developed countries. The use of biomass energy to generate electricity and connect it to the grid accounts for about 10% of total energy in Western Europe.

Biogas combustion power generation 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. The use of biogas to generate electricity has the characteristics of efficiency creation and energy saving. It is a widely distributed and cheap distributed energy source. What technologies should we know about biogas power generation? Let’s analyze Haixing Power for everyone.

1. Biogas fermentation

The definition of biogas fermentation is: Biogas fermentation, also known as anaerobic fermentation or anaerobic digestion, refers to the production of organic matter (such as crop straw, weeds, human and animal manure, garbage, sludge, urban domestic sewage and industrial organic wastewater, etc.) Under anaerobic conditions, through the catabolism and metabolism of various types of microorganisms with a large number and different functions, biogas is finally produced.

2. Biogas power generation

Biogas power generation technology is a new technology for comprehensive energy utilization that integrates energy conservation. It uses a large amount of organic waste from industry, agriculture or urban life (such as distiller's grains, livestock manure, urban garbage and sewage, etc.) to generate biogas through anaerobic fermentation treatment to drive the biogas generator set to generate electricity, and can fully utilize The waste heat from the generator set is used for biogas production.

The thermal efficiency of biogas power generation cogeneration projects varies greatly depending on the power generation equipment. For example, if a gas internal combustion engine is used, the thermal efficiency is between 70% and 75%. If a gas turbine and waste heat boiler are used, the thermal efficiency will be between 70% and 75%. Under normal circumstances, the thermal efficiency can reach more than 90%.

Biogas power generation technology itself provides clean energy, which not only solves the environmental problems in biogas projects, consumes a large amount of waste, protects the environment, and reduces greenhouse gas emissions, but also turns waste into treasure and generates a large amount of heat and electricity. , and also bring huge economic benefits.

It can be seen that the technology of biogas power generation can be used in some remote rural areas and many places with serious power shortages, such as pastoral areas, islands, remote mountainous areas and other places where high-voltage power transmission is difficult, but these areas are rich in biomass raw materials. If small-scale biogas can be developed according to local conditionsGenerator setPower stations can use their strong points to make up for their shortcomings and supply power locally.