Helping "carbon peak and carbon neutrality", biomass power generation has great potential


At present, the blueprint of the "14th Five-Year Plan" has been drawn up. What role will biomass power generation play in the process of achieving "carbon peak and carbon neutrality" and rural revitalization? Zhu Jianjun, deputy general manager of National Energy Bio-Power Group Co., Ltd., explained his views.
Question: The biomass power generation that most people remember most may be straw power generation. However, many technological breakthroughs have been made in biomass power generation. Could you please introduce the basic situation of biomass power generation by the State Grid Corporation of China.

Answer: Guoneng Bio-Power Group Co., Ltd. is a specialized company under the State Grid Comprehensive Energy Service Group Co., Ltd. engaged in comprehensive energy development and utilization in counties and biomass energy utilization. It is also the world's largest biomass power generation group and national agricultural industrialization. Leading enterprise. By the end of 2020, the installed capacity of biomass direct-fired power generation reached 1.136 million kilowatts, with an annual power generation capacity of 8.6 billion kWh; a biomass natural gas and bio-organic fertilizer project is under construction, with an annual output of 11 million cubic meters of high-quality bio-natural gas.

National Energy Biosciences adheres to the development model that combines technological innovation and industrialization development, introduces advanced biofuel combustion technology, researches and masters core biomass power generation technologies with independent intellectual property rights, and explores combustion adjustment technologies suitable for the characteristics of my country's biomass. After more than 10 years of development, National Energy Biosciences has explored a comprehensive resource utilization development path that integrates national leadership, central enterprise responsibility, turning waste into treasure, green environmental protection, and energy security, and has created a "three-industry integration" ( The highly industrialized industry in agriculture, the modern agricultural industry in industry, and the service industry directly serving "agriculture, rural areas and farmers") are eco-environmental protection energy brands.

Question: This year's government work report proposed that in order to achieve "carbon peak and carbon neutrality" as soon as possible, it is necessary to promote the development and application of new energy-saving and environmentally-friendly technologies, equipment and products, and foster and expand the energy-saving and environmental protection industries. Biomass power generation is a very important link in energy conservation and environmental protection. What can your industry do to achieve the goal of "carbon peak and carbon neutrality"?

Answer: In recent years, green, low-carbon, and energy-saving have become the mainstream trend of social development. The county's comprehensive energy service industry based on the comprehensive utilization of agricultural and forestry wastes has the characteristics of industry and agriculture complementarity, conforms to the rural revitalization strategy and the goal of "carbon peak and carbon neutrality", and is of great significance to promote local economic and social development and rich farmers to benefit farmers.

During the "14th Five-Year Plan" period, National Energy Bio-Bio will focus on developing the comprehensive energy service market in counties, fully satisfying the energy demand for county economic development, exploring the construction of "electricity, heating, cooling, gas, and fertilizer" comprehensive energy stations; developing a comprehensive waste utilization market , Based on the comprehensive treatment of crop straw, livestock manure, food waste, agricultural product waste and other garbage, and provide comprehensive energy supply services.

Guoneng Bio has an installed capacity of more than one million kilowatts of biomass power generation. It is in a leading position in China in terms of scale and development quality, and has a certain first-mover advantage. In the future, National Energy Bio-Bio will target the huge comprehensive energy service market in the county, expand its business with biomass energy and other core areas, and explore the key path of the comprehensive energy revolution in the county.

Question: In the process of rural revitalization, the company proposed to fully improve the level of rural electrification, promote rural clean energy construction projects, in-depth development of "power supply + energy efficiency services", vigorously promote electric energy substitution, and accelerate the construction of rural new energy vehicle charging facilities. In this field, what role can biomass power generation play?

Answer: Biomass energy has the characteristics of green, low-carbon, clean, and renewable. Biomass is mainly used for power generation. While consuming a large amount of agricultural and forestry wastes, it can effectively drive farmers’ employment, consolidate and expand the achievements of poverty alleviation, and produce Good ecological benefits and livelihood effects.

National Energy Biotech purchases and utilizes nearly 10 million tons of agricultural and forestry residues such as straws each year, pays about 3 billion yuan to farmers, benefits about 1.6 million rural people (including 45,000 purchase, storage, and processing brokers), and helps 350,000 rural people get rid of poverty. It is equivalent to reducing standard coal consumption by about 3.8 million tons and reducing carbon dioxide by about 7.2 million tons. It has played an irreplaceable role in developing county circular economy, ensuring rural energy security, and building beautiful villages.

At this stage, National Energy Bio-Bio adheres to the internationally leading development goal of comprehensive utilization of biomass energy. It focuses on the development of emerging industries, transforms from the power generation industry to the "power generation industry + emerging extension industry", fully utilizes existing resources, and further extends Industrial chain, enrich profitable means, and explore businesses such as bio-natural gas, organic fertilizer, biomass heating, biomass + photovoltaic power generation/wind power, waste incineration power generation, and regional integrated energy services.

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The generator set control module adopts the microprocessor-based

The generation principle of biomass synthesis gas: biomass raw materials enter the reactor of the gasification furnace, after being heated and dried, and then as the temperature rises, its volatile matter is precipitated and pyrolyzed (cracked) at high temperature. The pyrolyzed gas and production The substance undergoes a combustion reaction with the supplied air in the oxidation zone to produce CO2 and water vapor. The heat generated by combustion is used to maintain drying, pyrolysis and endothermic reactions in the lower reduction zone. The gas produced after combustion passes down the reduction zone and reacts with the high-temperature carbon layer (C+CO2=2CO, C+HO2=H2+CO) to generate biomass synthesis gas containing CO, H2, CH4, CmHn, etc. It is drawn from the bottom, and is sent out for use after the purification system removes impurities such as tar. The ash is discharged from the lower part of the gasifier. The generator set control module adopts the microprocessor-based generator set control technology, which has many functions such as automatic data recording, automatic operation, automatic control, automatic protection, etc., and has good reliability and stable performance. The operating parameters of the unit are displayed by a large-screen LCD, which displays large and accurate data.


which is convenient for transportation and installation

Biomass gasifier is composed of furnace body system, dust removal system, cooling system, tar purification system, tar separation system, Roots blower, electrical control system, etc. The syngas generator set is mainly composed of a gas engine, a three-phase AC synchronous engine, a control cabinet, a common chassis and a gas source link part. The KX series biomass synthesis gas power generation system adopts modular design, which is convenient for transportation and installation. The KX series biomass gasifier is a downdraft, fluidized bed biomass gasifier independently designed and developed for the needs of biomass synthesis gas power generation. This series of biomass gasifier uses PLC intelligent system control The system fully realizes long-term fully automatic work. And the dry purification technology used in the gasifier avoids secondary water pollution to the natural environment. Moreover, the raw materials are highly adaptable, requiring the size of the biomass raw materials to be ≤30mm and the moisture content ≤20%. Pass various biomass raw materials through the gasifier for drying, cracking, oxidation and reduction to produce biomass synthesis gas, and then the biomass synthesis gas is cooled, dusted, and cooled to remove tar and impurities in the gas, and the processed high-quality , The pure biomass synthesis gas is transported to the synthesis gas generator set for power generation. In this way, while realizing the conversion of low-value biomass energy from solid to gaseous, it greatly improves the utilization efficiency of solid biomass energy. Biomass gasification is the process of converting solid biomass (wood chips, branches, organic household waste, agricultural and forestry waste, etc.) into combustible biomass synthesis gas. By controlling the reaction process, carbon, hydrogen, and oxygen are chemically reacted. It is synthesized into combustible components such as carbon monoxide, hydrogen and methane, and most of the energy in biomass raw materials is transferred to biomass synthesis gas. This is the gasification process of biomass gasifier. The generation principle of biomass synthesis gas: biomass raw materials enter the reactor of the gasification furnace, after being heated and dried, and then as the temperature rises, its volatile matter is precipitated and pyrolyzed (cracked) at high temperature. The pyrolyzed gas and production The substance undergoes a combustion reaction with the supplied air in the oxidation zone to produce CO2 and water vapor. The heat generated by combustion is used to maintain drying, pyrolysis and endothermic reactions in the lower reduction zone. The gas produced after combustion passes down the reduction zone and reacts with the high-temperature carbon layer (C+CO2=2CO, C+HO2=H2+CO) to generate biomass synthesis gas containing CO, H2, CH4, CmHn, etc. It is drawn from the bottom, and is sent out for use after the purification system removes impurities such as tar. The ash is discharged from the lower part of the gasifier.    The generator set control module adopts the microprocessor-based generator set control technology, which has many functions such as automatic data recording, automatic operation, automatic control, automatic protection, etc., and has good reliability and stable performance. The operating parameters of the unit are displayed by a large-screen LCD, which displays large and accurate data.


Biomass gasification is the process of converting solid biomass

Biomass gasification is the process of converting solid biomass (wood chips, branches, organic household waste, agricultural and forestry waste, etc.) into combustible biomass synthesis gas. By controlling the reaction process, carbon, hydrogen, and oxygen are chemically reacted. It is synthesized into combustible components such as carbon monoxide, hydrogen and methane, and most of the energy in biomass raw materials is transferred to biomass synthesis gas. This is the gasification process of biomass gasifier. The generation principle of biomass synthesis gas: biomass raw materials enter the reactor of the gasification furnace, after being heated and dried, and then as the temperature rises, its volatile matter is precipitated and pyrolyzed (cracked) at high temperature. The pyrolyzed gas and production The substance undergoes a combustion reaction with the supplied air in the oxidation zone to produce CO2 and water vapor. The heat generated by combustion is used to maintain drying, pyrolysis and endothermic reactions in the lower reduction zone. The gas produced after combustion passes down the reduction zone and reacts with the high-temperature carbon layer (C+CO2=2CO, C+HO2=H2+CO) to generate biomass synthesis gas containing CO, H2, CH4, CmHn, etc. It is drawn from the bottom, and is sent out for use after the purification system removes impurities such as tar. The ash is discharged from the lower part of the gasifier.    The generator set control module adopts the microprocessor-based generator set control technology, which has many functions such as automatic data recording, automatic operation, automatic control, automatic protection, etc., and has good reliability and stable performance. The operating parameters of the unit are displayed by a large-screen LCD, which displays large and accurate data.