Biomass energy refers to the energy in which plant chlorophyll converts solar energy into chemical energy and is stored inside the biomass. It converts solid biomass into flammable gas, tar, etc. thanks to thermochemical conversion technology. into flammable gas, tar, etc. using biochemical conversion technology. The biomass is converted into biogas, alcohol, etc. under the fermentation of microorganisms, and the biomass is compressed into high-density solid fuel, etc. through briquetting and fine molding technology.
Biomass energy includes: energy trees, energy crops, aquatic plants, various organic wastes, etc. These are renewable resources converted by plant photosynthesis.
Biomass can be divided into broad and narrow senses. Biomass in the broad sense refers to various organisms produced by photosynthesis using the atmosphere, water, earth, etc., that is to say all living organic matter that can develop. Commonly called biomass, it includes all plants, microorganisms, animals that feed on plants and microorganisms, as well as the waste they produce.
Biomass in the narrow sense mainly refers to lignocellulose such as straw and trees other than grains and fruits in the agricultural and forestry production process, the remains of the agricultural product processing industry , agricultural and forestry waste and livestock farming. production process. Materials such as manure and livestock waste.
Detailed information:
Biomass energy has four main characteristics: < /p> < p>1. First, reproducibility. Because it can be formed by plant photosynthesis, the energy of the biomasse is a renewable energy source like wind power and solar power, and can be produced continuously to ensure sustainable use.
2. The second is green environmental protection. On the one hand, because the sulfur and nitrogen content of the biomass is very low, no harmful gases are produced during the combustion process. On the other hand, the amount of carbon dioxide released by the combustion of biomass is equivalent to carbon dioxide; necessary for its growth, thus affecting net emissions of atmospheric carbon dioxide are close to zero and will not exacerbate the greenhouse effect.
3. Third, it is widely distributed and abundant in total. According to biologists' estimates, land produces between 100 and 125 billion tonnes of biomass each year; the oceans produce 50 billion per year. Annual energy production from biomass far exceeds annual energy demandtotal loss in the world.
4. Fourth, it is widely applicable. Biomass energy can exist in the form of biogas, compression molded solid fuel, gasification to produce gas, gasification to produce electricity, production of fuel alcohol, thermal cracking to produce biodiesel , etc., and is used in various areas of the national economy.
Baidu Encyclopedia - Biomass energy
People's Daily online - "Conventional" energy is on the road to rebirth - The development and use of biomass biomass energy in China have achieved fruitful results
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