[Ten years of major development in chemical technology] The technical feasibility of ammonia-incorporated combustion in coal-fired units to achieve carbon reduction targets from 020 to 2023 has been verified

Thread Content

The technical feasibility of coal-fired units achieving carbon reduction targets through ammonia-incorporated combustion was verified. On April 8, at the 300-megawatt coal-fired unit of Wanneng Tongling Power Generation Co., Ltd., a subsidiary of Wanneng Electric Power, a large-scale ammonia-incorporated combustion test achieved a maximum ammonia doping of 35 % of smooth operation, the maximum ammonia dosage is greater than 21 tons per hour, the ammonia burnout rate reaches 99.99%, the ammonia escape rate is less than 2 mg per cubic meter, the exhaust nitrogen oxide (NOx) concentration can be controlled and reduced, and the boiler efficiency is equivalent to coal-fired conditions. The large-scale ammonia-incorporated combustion test of large-scale coal power units achieved a breakthrough in Tongling, and the technical feasibility of coal-fired units achieving carbon reduction targets through ammonia-incorporated combustion was verified. “This marks that my country's coal-fired power units achieve clean and efficient combustion technology through ammonia doping, entering the industrial application stage, opening up a practical path for energy conservation, emission reduction, and green and low-carbon development of coal-fired power units. It is of great significance for accelerating the construction of a clean, low-carbon, safe and efficient energy system. ”Academician of the Chinese Academy of Engineering, Hefei Comprehensive * * Li Jiangang, director of the Energy Research Institute of the Science Center, said. Coal-fired power generation is one of the main sources of carbon emissions in my country. The use of new fuels such as ammonia energy to replace fossil energy is a key technology to achieve the "double carbon" goal. Chen Yuwei, deputy general manager of Nibang Technology Co., Ltd., who is responsible for the engineering tasks of the project, said that by installing a pure ammonia burner in the boiler of the coal-fired unit and running it at the same time as the pulverized coal burner, it can replace standard coal, reduce dust and carbon dioxide emissions, and reduce energy consumption. The test has broken through the biggest difficulty in stably burning ammonia in the boiler. At the same time, the test team also independently developed "three sets of control systems" including a long-distance ammonia gasification control system, a burner control system with integrated plasma, and an online detection system for furnace temperature field and gas composition, filling a number of technical gaps. Ammonia energy clean combustion power generation demonstration project is sponsored by Hefei Comprehensive * * The Energy Research Institute of the Science Center and Anhui Energy Group Co., Ltd. jointly initiated the project in 2021. The next step will be to promote engineering tests with an ammonia doping ratio of more than 50%, and carry out engineering demonstration and promotion on 1,000 MW units. ； At the same time, we will explore the use of hydrogen and ammonia energy in chemical, cement, metallurgy and other industries to help reduce carbon emissions and consumption. It is reported that Hefei comprehensive * * The "Photovoltaic Hydrogen Production Ammonia Demonstration Project" jointly conducted by the Energy Research Institute of the Science Center and Anhui Energy Group Co., Ltd. has also been implemented simultaneously. In the future, pure ammonia burners will achieve "green ammonia" combustion, further achieving energy conservation and carbon reduction. In the next step, the two parties will promote engineering tests with an ammonia doping ratio of more than 50%, and carry out engineering demonstration and promotion on 1,000 MW units. ； At the same time, we will explore the use of hydrogen and ammonia energy in chemical, cement, metallurgy and other industries to help reduce carbon emissions and consumption. It is reported that the Provincial Energy Group and Hefei Comprehensive * * The "Photovoltaic Hydrogen Production Ammonia Demonstration Project" co-operated by the Energy Research Institute of the Science Center has also been implemented simultaneously. In the future, pure ammonia burners will achieve "green ammonia" combustion, further achieving energy conservation and carbon reduction, and contributing more to promoting the strategic adjustment of Anhui's energy structure and solving the province's energy security issues.