An article to understand the market status, regional pattern and development prospects of China's biomass power generation industry in 2021


Since the beginning of the 21st century, my country’s energy security and environmental and ecological protection issues have become increasingly severe. Renewable energy has become an important part of the energy development strategy and an important development direction of the energy transition. According to different fields of application of renewable energy, power system construction is undergoing structural changes, and renewable energy power generation has begun to become the mainstream of power supply construction. Biomass power generation technology is one of the most common and effective methods in the current application of biomass energy.

1. Overview of the biomass power generation industry chain

Biomass is the most widespread substance on earth, including all animals, plants and microorganisms, as well as many substances derived, excreted and metabolized by these living substances.

Biomass power generation is the use of biomass energy in biomass to generate power, which is a type of renewable energy power generation. Biomass power generation is divided into agriculture and forestry biomass power generation, waste incineration power generation and biogas power generation.

Biomass power generation technology is currently one of the most common and effective methods in the application of biomass energy. In developed countries such as Europe and the United States, biomass power generation has formed a very mature industry and has become an important method of power generation and heating in some countries.

2. The state vigorously develops biomass power generation investment in biomass power generation continues to grow

Biomass energy is an important renewable energy source. The development and utilization of biomass energy is an important part of the energy production and consumption revolution, as well as an important task for improving environmental quality and developing a circular economy. In order to promote the distributed development and utilization of biomass energy, expand the market scale, improve the industrial system, and accelerate the development of the specialized and diversified industrialization of biomass energy.

Biomass power generation is the main form of biomass energy utilization. In recent years, in order to promote biomass power generation, the state has issued a series of biomass energy utilization policies, including the "13th Five-Year Plan for Biomass Energy Development" and National Forestry Biomass Energy Development Plan (2011-2020), etc., and accelerate its development through direct financial subsidies.

According to the data, the budget arrangement of the national renewable energy electricity price subsidy fund in 2019, the biomass power generation subsidy budget amounts to 4.2 billion yuan; in 2020, the biomass energy power generation subsidy will be 5.341 billion yuan in the expenditure of the renewable energy electricity price supplementary income arrangement. The implementation of biomass power generation subsidies in 2020 is expected to be better than in 2019, driving the actual subsidy amount to be higher than 2019.

Driven by national policies and financial subsidies, my country's biomass power generation investment has continued to grow. Data show that in 2019, the scale of my country's biomass power generation investment exceeded 150.2 billion yuan, a year-on-year increase of 12.3%, and nearly doubled compared with 2012. In terms of investment projects, as of the end of 2019, there had been 1094 mass energy power generation projects nationwide, an increase of 192 over 2018 and an increase of 439 over 2016. Among them, there are 374 agricultural and forestry biomass power generation projects.

3. China's biomass installed capacity and power generation maintain a steady growth momentum, and the proportion of renewable energy power generation continues to grow

Driven by the country’s vigorous encouragement and support for the development of renewable energy, the enthusiasm for investment in biomass power generation, and the construction and commissioning of various biomass power generation projects, my country’s biomass power generation technology industry has shown an overall accelerated development trend. According to data from the National Energy Administration, in 2019, biomass power generation installed 4.73 million kilowatts, and the cumulative installed capacity reached 22.54 million kilowatts, an increase of 26.6%; the annual biomass power generation was 111.1 billion kilowatt-hours, an increase of 20.4% year-on-year, continuing to maintain steady Growth momentum.

As of the end of 2020, China’s newly installed biomass power generation capacity reached 5.43 million kilowatts, and the cumulative installed capacity reached 29.52 million kilowatts, an increase of 22.6% year-on-year; biomass power generation reached 132.6 billion kilowatt-hours, an increase of 19.4% year-on-year, continuing to maintain a steady growth momentum.

With the rapid development of biomass power generation, the proportion of biomass power generation in my country's renewable energy power generation is steadily increasing year by year. In 2019, my country's cumulative installed capacity and power generation capacity of biomass energy accounted for 2.84% and 5.45% of renewable energy installed capacity and power generation, respectively, an increase of 0.71 and 2.21 percentage points from 2014.

In the third quarter of 2020, the cumulative installed capacity and power generation of biomass energy accounted for 3.13% and 6.26% of renewable energy installed capacity and power generation, respectively, and the proportions continued to increase. The rising status of biomass power generation reflects that biomass power generation is gradually becoming a new force in the utilization of renewable energy in my country.

4. China is dominated by biomass direct combustion for power generation, waste incineration and agricultural and forestry biomass power generation dominate

Common biomass power generation technologies include direct combustion power generation, methanol power generation, and biomass gas power generation technologies. At present, my country’s biomass power generation is mainly direct combustion power generation. The technology started late but has developed very rapidly, mainly including agriculture and forestry biomass power generation. Waste incineration power generation and biogas power generation. Specifically:

In terms of installed capacity: In 2020, China's biomass power generation will add 5.43 million kilowatts, and the cumulative installed capacity will reach 29.52 million kilowatts. Among them, the new installed capacity of waste incineration power generation reached 3.11 million kilowatts, and the cumulative installed capacity reached 15.33 million kilowatts; the new installed capacity of agricultural and forestry biomass power generation reached 2.17 million kilowatts, the cumulative installed capacity reached 13.3 million kilowatts, the new installed capacity of biogas power generation reached 140,000 kilowatts, and the cumulative installed capacity reached 89 Ten thousand kilowatts.

In terms of power generation: China's biomass power generation will reach 132.6 billion kWh in 2020, of which waste incineration power generation will be 77.8 billion kWh, agriculture and forestry biomass power generation will be 51 billion kWh, and biogas power generation will be 3.78 billion kWh.

5. China's biomass power generation regions are relatively concentrated, but the focus of each district is different

With the implementation of policies for the development and utilization of biomass energy and technological progress, various regions have also made certain achievements in the development of biomass energy. Specifically, as of the end of 2020, the top five provinces with cumulative installed capacity were Shandong, Guangdong, Jiangsu, Zhejiang and Anhui, with 3.655 million kilowatts, 2.824 million kilowatts, 2.420 million kilowatts, 2.401 million kilowatts, and 2.138 million kilowatts, respectively.

At the end of 2020, the provinces with more new installed capacity were Shandong, Henan, Zhejiang, Jiangsu and Guangdong, with 677,000 kilowatts, 646,000 kilowatts, 417,000 kilowatts, 389,000 kilowatts, and 366,000 kilowatts, respectively.

The top five provinces in terms of power generation in 2020 are Guangdong, Shandong, Jiangsu, Zhejiang and Anhui, with 16.64 billion kWh, 15.89 billion kWh, 12.55 billion kWh, 11.14 billion kWh and 11.07 billion kWh respectively. The development concentration of biomass power generation in my country is relatively high.

However, from the specific situation of each region, the focus of biomass power generation in each region is different. Taking the distribution of various types of biomass power generation projects as an example, according to the “China Biomass Power Generation "Industry Ranking Report 2019" shows that agricultural and forestry biomass power generation projects are mainly concentrated in crop-rich North China, Northeast China, Central China, and South China. The cumulative installed capacity and power generation capacity of the first ten provinces in 2018 and on-grid power accounted for 82% of the country.

Looking specifically at the provinces, the top 5 regions for the cumulative installed capacity of agricultural and forestry biomass power generation in 2018 are Shandong, Anhui, Heilongjiang, Jiangsu, and Jilin, with cumulative installed capacity of 143.1, 110.9, 86.2, 52.5, and 487,000 kilowatts respectively; the top 5 regions for power generation For Shandong, Anhui, Heilongjiang, Jiangsu, and Hebei, the power generation is 81.4, 49.0, 47.5, 31.2, and 2.65 billion kWh respectively.

Waste incineration power generation projects are mainly concentrated in East China and South China. The economy is relatively developed, and the amount of waste generated and processed ranks in the forefront of the country. According to the "China Biomass Power Generation Industry Ranking Report 2019", the domestic waste incineration power generation project in 2018 is the highest The ten provinces are Zhejiang, Guangdong, Shandong, Jiangsu, Anhui, Fujian, Sichuan, Hunan, Beijing, Hebei, with a total installed capacity of 6.96 million kilowatts, accounting for about 76% of the country's total installed capacity;

The top ten provinces in terms of power generation are Zhejiang, Guangdong, Jiangsu, Shandong, Anhui, Fujian, Sichuan, Shanghai, Hunan, and Beijing, with a total power generation of 37.8 billion kWh, accounting for approximately 78% of the national power generation.

The overall scale of biogas power generation is relatively small, mainly concentrated in Jiangsu, Shandong, Henan, Guangdong, Hunan, Zhejiang and other regions. According to the "China Biomass Power Generation Industry Ranking Report 2019", the top 5 provinces with cumulative installed capacity of biogas power generation in 2018 are Jiangsu and Jiangsu. Shandong, Henan, Hunan, and Zhejiang; the top 5 provinces for annual power generation are Shandong, Guangdong, Jiangsu, Henan, and Hunan.

6. The development of China's biomass power generation exceeds planned expectations, and the future development prospects continue to improve

In July 2017, the "Thirteenth Five-Year Plan for Biomass Power Generation" proposed that by 2020, my country's 31 provinces (autonomous regions and municipalities) will have a total of 23.34 million biomass power generation in compliance with the National Renewable Energy Fund support policy. Kilowatts, including 13.12 million kilowatts for agricultural and forestry biomass power generation; 10.22 million kilowatts for waste incineration power generation.

As of the end of 2020, China’s cumulative installed capacity of biomass power generation was 29.52 million kilowatts, of which 15.33 million kilowatts of waste-burning power generation and 13.3 million kilowatts of agricultural and forestry biomass power generation, all of which greatly exceeded planning expectations in advance.

In the future, as the development of renewable energy continues to accelerate, the proportion of renewable energy in primary energy consumption will continue to rise. Zheng Shengan, Dean of the Hydropower and Water Conservancy Planning and Design Institute, predicts that by 2025, the proportion of renewable energy in primary energy consumption will reach 19% Around this time, renewable energy power generation will account for about 32% of the total electricity consumption in society.

By 2050, renewable energy will account for about 50% of primary energy consumption, and renewable energy will account for about 70% of total electricity consumption.

Biomass energy is an important renewable energy. In the future, as the country accelerates the development of renewable energy, biomass power generation has a good prospect and huge room for development. It is conservatively estimated that in 2025, the electricity consumption of the whole society will be 8.79 trillion kWh. The renewable energy power generation capacity is 2.81 trillion kWh, and the annual biomass power generation accounts for 11.5% of the renewable energy power generation capacity. The biomass power generation capacity in 2025 is about 323.5 billion kWh, compared with 11.11 million kWh in 2019 Time to double.

LAST NEWS


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.