Regeneration of waste - biomass energy

3. Potential analysis of biological gas

Biological natural gas is a green, low-carbon, clean and renewable natural gas produced by anaerobic fermentation, purification and purification from various urban and rural organic wastes such as crop stalks, livestock manure, kitchen waste, agricultural and sideline-processing wastewater, etc.

According to the "Guiding Opinions on Promoting the Development of Bio-gas Industrialization" issued by ten ministries and commissions in December 2019, the development goal of exceeding 20 billion cubic meters of bio-gas annual output by 2030 is proposed. By then, it will account for about 5% of natural gas consumption and is expected to reduce carbon emissions by more than 60 million tons. If the production of biological natural gas can reach 100 billion cubic meters by 2060, it will greatly ease the tension of natural gas in China, and contribute more than 300 million tons of carbon emission reduction.

4. Potential analysis of biomass liquid fuel

In the field of transportation, biomass liquid fuel has great potential for development. Fuel ethanol can effectively replace fossil gasoline, biodiesel can replace fossil diesel, and biological aviation kerosene has also been applied in the aviation field. By replacing fossil oil with biomass liquid fuel, a new way to reduce carbon emissions in the transportation sector is developed.

According to statistics, in 2020, China's fuel ethanol production will reach 2.74 million tons, and the apparent consumption will be about 2.77 million tons. In July 2021, the National Energy Administration issued the "Guidance on Energy Work in 2021" clearly proposed that it is necessary to accelerate the demonstration of non-food biofuel ethanol industry such as cellulose, and pointed out that the development of cellulosic fuel ethanol will be the key direction of biofuel ethanol.

At present, the production cost of bio-liquid fuel is still high, which is an important reason restricting the development. According to research and calculation, the current cost of fuel ethanol and biodiesel is about 6,000 yuan, which is not competitive in the market, but its cost is still lower than the cost of hydrogen energy. If the future of straw as raw materials of the second generation of fuel ethanol can achieve technological breakthroughs, is expected to reduce the cost of about 40%, there will be a large space for development.

According to the forecast, from now to around 2030, fuel ethanol and biodiesel will be one of the important ways to reduce emissions in road transport, and bio-aviation fuel will gradually be used in the aviation field. More than 25 million tons of liquid biofuel are expected to be used, reducing emissions by about 180 million tons in the transportation sector. After 2030, electric vehicles and hydrogen fuel vehicles will become the main force of road transport, and bio-aviation fuel will account for 30% of the use in the aviation field, and the total use of bio-liquid fuel will reach 70 million tons, reducing about 400 million tons in the transportation field.

The development of biomass energy in the modern energy system will not only promote the large-scale development of agriculture, but also play a positive role in addressing climate change, energy shortage and environmental pollution. In the future, with the further improvement of the policy environment for the development of the biomass energy industry and the further improvement of the technical level, the diversified development and utilization of biomass energy may usher in new opportunities for vigorous development.