We will promote diversified development of biomass energy

Biomass waste mainly includes agricultural waste, forestry waste, organic domestic waste, livestock and poultry manure, domestic sewage sludge and industrial organic waste residues and liquid waste. At present, China's annual output of all kinds of biomass waste is conservatively estimated to exceed 3.5 billion tons. Among them, 960 million tons of agricultural waste, 350 million tons of forestry leftovers, 150 million tons of organic domestic waste, 1.9 billion tons of livestock and poultry manure, 150 million tons of agricultural processing waste, and 40 million tons of sewage sludge. If these wastes are not properly treated, it will not only bring great harm to the environment, society and the physical and mental health of residents, but also the resources contained in them are difficult to be fully recycled. At present, the common practice of all countries is to turn waste into treasure under the premise of harmless and reduced disposal. Generally, it is first used for resource utilization and high value-added utilization, and then for energy utilization of waste that does not have high resource utilization and high value-added utilization conditions.

After decades of development, the biomass energy industry has developed from the inefficient use of biomass such as direct burning of fuelwood and straw in traditional POTS and clay stoves in rural areas to the use of thermochemistry, biochemistry and other means, through a series of advanced conversion technologies, to produce high-grade low-carbon energy such as solid, liquid and gas instead of fossil fuels. Modern biomass energy that provides electricity, transportation fuel, heat energy, gas and other terminal energy products for human production and life.

The development of biomass energy has multiple implications.

This is an important starting point to help achieve the goal of "double carbon". In the future, biomass energy from a wide range of sources will continue to contribute to the promotion of peak carbon neutrality in various fields by virtue of its characteristics. The "3060 zero-carbon biomass energy Development Potential Blue Book" predicts that China's carbon emissions peak at about 11 billion tons, while the future carbon reduction potential of biomass energy will reach 2 billion tons, and the carbon reduction potential is huge.

This is an effective way to reduce pollution and carbon at county level. The construction of biomass non-electric distributed energy stations such as biomass clean heating and biological natural gas can provide clean energy for the county. At the same time, the non-electric utilization of biomass can solve the environmental pollution problems caused by livestock and poultry manure, crop straw open burning, and various agricultural and forestry wastes.

This is an important means to promote rural revitalization. The development of biomass energy industry can effectively build a green and low-carbon circular development system of "agriculture - energy - environmental protection - agriculture", cultivate new ways, new formats and new momentum of green and low-carbon circular development at county level, and promote farmers to increase income and get rich.

After the outbreak of the global oil crisis in the 1970s, clean energy represented by biomass energy has received worldwide attention. Especially in developed countries, biomass energy has been given an important energy strategic positioning.

In terms of global biomass energy development, the United States, Brazil, Germany and other countries have a rapid development process. By 2020, the installed capacity of biomass power generation in the United States is about 16 million kilowatts, generating 64 billion kilowatt-hours, and its fuel ethanol production accounts for about 50% of the global output and biodiesel production accounts for 14% of the global output. Brazil biomass power generation capacity of about 14.7 million kilowatts, generating 54 billion KWH, Brazil is also a fuel ethanol production country, sugar cane is its main fuel ethanol production raw materials; Germany pays attention to the development of biogas resources, and the installed capacity of biogas power generation is about 5 million kilowatts, generating about 33 billion KWH.

In Europe, especially in the Nordic countries, biomass heating has become the main source of district heating. In Sweden, there are more than 100,000 large, small and medium-sized biomass heating stations in the country, most of which use the cogeneration model, the thermal efficiency is usually above 80%, and the national biomass heating volume accounts for more than 70% of its total heating market. Biomass energy is the most important and largest renewable energy source in Denmark, and 32% of all heat consumption in Denmark in 2018 was provided by biomass energy, and by 2030, biomass heating will account for more than half of all heat supply in Denmark. In Finland, biomass energy accounts for 30% of the total energy, and in the use of various renewable energy sources, bioenergy accounts for the largest proportion, about 82%.