Promote the green, low-carbon and circular development of the biomass power generation industry

Third, China's biomass power generation is of great significance to promote the recycling of resources and solve rural environmental pollution. The "Opinions of the Central Committee of the Communist Party of China and The State Council on Comprehensively Strengthening Ecological Environmental Protection and Resolutely Fighting the Battle of Pollution Prevention and Control" clearly requires that open burning of straw is strictly prohibited in accordance with the law, and comprehensive utilization is comprehensively promoted. According to the "Environmental Status Bulletin", in 2018, satellite remote sensing monitored a total of 7647 straw burning fire points in the country (excluding fire point information under cloud cover), mainly distributed in Heilongjiang, Jilin, Inner Mongolia, Shanxi, Hebei, Liaoning and other provinces. According to the estimation of the relevant departments in Heilongjiang, in 2018, The province's investment in banning crop straw open burning reached 6 billion yuan. Biomass power generation, as an effective way to deal with agricultural and forestry waste, not only has a great effect on clean heat supply and power generation, but also can effectively solve the open burning of straw, reduce rural environmental pollution, and the ash after combustion can also be used as an organic fertilizer, truly realizing the "waste to treasure" of agricultural and forestry and domestic waste. This is also the unique property of biomass energy power generation that is different from other renewable energy sources. Biomass power generation is also an effective environmental protection treatment project. Through biomass power generation, agricultural and forestry waste resources are utilized in high value, which can reduce a series of environmental problems such as soil and water pollution, space waste, fire safety hazards, and biological disease threats caused by agricultural and forestry waste to a certain extent. Effectively solve the impact of agricultural and forestry waste decay on village appearance and the environmental pollution and safety hazards caused by straw burning in the field, which is conducive to improving rural environmental health and residential living conditions.

Fourth, China's biomass power generation is of great significance to explore zero emission and even negative emission technologies of greenhouse gases. The results of the simulation studies related to the IPCC Special Report on Global Warming of 1.5 ° C released by the Intergovernmental Panel on Climate Change in 2018 show that the 1.5 ° C emission reduction path given by all models relies to some extent on carbon dioxide removal technology (CDR). Existing or potential CO2 removal measures include afforestation and reforestation, land restoration and soil carbon sequestration, biomass + carbon capture and storage (BECCS), direct air carbon capture and storage (DACCS), enhanced weathering and ocean alkalization. According to the analysis, by the end of this century, the scale of carbon dioxide removal technology in the 1.5 ° C path is about 100 to 100 billion tons, of which biomass energy + carbon capture and storage (BECCS) is more prominent, and the demand for BECCS to achieve the 1.5 ° C goal is about 15 billion tons of CO2/ year.

Biomass power generation comes from biomass, which effectively absorbs carbon dioxide in the atmosphere during the growth process, as a fuel or industrial raw materials process, although carbon dioxide is generally emitted into the atmosphere again, but from the perspective of the life cycle can achieve net zero emission of carbon dioxide, that is, the so-called "carbon neutral". If carbon capture and storage technology is used to capture carbon dioxide released during biomass energy use before it is released into the atmosphere and injected into deep underground reservoirs that meet specific geological conditions for permanent storage, negative emissions can be achieved. Biomass power generation + carbon capture and storage is a potential key technology to achieve medium - and long-term economy-wide "net zero emissions", and it is extremely necessary to make technical strategic reserves to promote the realization of medium - and long-term net zero greenhouse gas emissions.

The existing problems and challenges of biomass power generation

The sustainable and healthy development of biomass energy is not only an important task to promote the revolution of energy production and consumption, improve urban and rural environmental quality, and promote green, low-carbon and circular development, but also a major social issue affecting people's livelihood. The research found that biomass power generation enterprises currently have some problems and challenges in atmospheric pollutant emission standards, ultra-low emission transformation, nitrogen oxide treatment, material stacking and covering, tax incentives, carbon dioxide collaborative control, etc., which have a negative impact on the sustainable and healthy development of the industry to a certain extent.