With economic development, China’s energy demand is increasing, and it has become the world’s largest energy producer and consumer. At present, increasing energy supply and ensuring energy security are major challenges facing China’s economic and social development.
The concept of sustainable development has gradually become the consensus of the international community after the 1970s. Biomass energy is an important renewable resource, and its development and utilization are valued by all countries. Many countries regard the development and utilization of biomass energy as an important part of their energy strategy. The United States proposes that by 2020 renewable biofuels account for 20% of transportation fuels, and the European Union proposes that by 2020 biofuels account for 10% of transportation fuels.
Renewable energy includes hydropower, wind energy, solar energy, biomass energy, geothermal energy and ocean energy. The development and utilization of renewable energy is conducive to the harmonious development of man and nature.
As one of the important renewable energy sources, biomass energy has great potential in meeting China’s energy demand, reducing environmental pollution, and improving the energy structure. At this stage, China’s biomass energy consumption accounts for a relatively low proportion of total energy consumption, and the industrial foundation is relatively weak, which awaits our vigorous development. China’s “Outline of the Eleventh Five-Year Plan for National Economic and Social Development” clearly states: “Encourage the production and consumption of renewable energy and increase its share in primary energy consumption.” To accelerate the development of China’s biomass energy is to promote energy conservation and reduction. To better respond to important breakthroughs in sustainable economic and social development.
The so-called biomass, broadly speaking, all living organic substances that can grow are collectively referred to as biomass, including plants, animals, and microorganisms. In a narrow sense, biomass mainly refers to lignocellulose such as straws and trees in the agricultural and forestry production process, except for grain and fruits, leftovers from the agricultural product processing industry, agricultural and forestry wastes, and livestock manure and livestock in the production process of animal husbandry. Waste and other substances.
Biomass energy is the energy form of solar energy stored in biomass in the form of chemical energy, that is, energy with biomass as a carrier. It is directly or indirectly derived from the photosynthesis of green plants and can be converted into conventional Solid, liquid and gaseous fuels are the only renewable carbon source. As an important renewable energy, biomass energy has the characteristics of wide resource sources, diversified utilization methods, diversified energy products, and significant comprehensive benefits.
As one of the four major energy sources, biomass energy is second only to oil, coal and natural gas in consumption, and it accounts for 14% of primary energy. With the depletion of petrochemical energy, coupled with increasingly severe climate and environmental issues, the development and utilization of biomass energy has attracted more and more attention from all walks of life. Countries all over the world are increasing their efforts to develop material energy. In the middle of the century, various biomass alternative fuels produced by new technologies will account for more than 40% of the world’s total energy consumption.