China's practice shows that coal can become clean energy. On February 25, the China press conference of the global coal market report () jointly organized by the International Energy Agency and the national energy group and hosted by China Shenhua was held in Beijing. Liubaohua, deputy director of the national energy administration, said that China has built the world's largest clean coal power supply system, with 70% of coal-fired power units achieving ultra-low emissions; Ling Wen, general manager of the national energy group and academician of the Chinese Academy of engineering as a pioneer, said that while China is achieving ultra-low emissions from coal-fired power units, carbon capture, utilization and storage (CCUs) technology is also advancing steadily
"as a major coal country in the world, the practice of clean and efficient development of China's coal industry tells the world that coal can become a clean energy." Wang Xianzheng, President of China Coal Industry Association, said
global coal is still the main energy, and clean development is crucial.
according to the International Energy Agency (IEA) global coal market report (), although the contribution of coal to the global energy structure will decline slightly in the future, coal is still the core of the global energy system at present. The declining share of coal consumption in Europe and the United States will be offset by growth in India and other Asian countries. In the next five years, the global coal demand will remain stable. China will remain the world's largest coal consumer
"due to the advantages of affordable prices, abundant reserves and easy transportation, coal is still the main energy in many countries." Carlos Fernandez Alvarez, a municipal researcher of IEA coal, said at the press conference that coal also provides energy security and energy popularization functions, especially in China, South Asia and Southeast Asia, and supports the development of local economy
for the global coal industry, clean development is crucial. The IEA report highly appreciates the Chinese government's practice of "winning the blue sky defense war" committed to the clean development of coal. The report believes that China's environmental policies, especially clean air measures, have limited coal demand. Reduce the direct use of coal in residential heating and commercial and industrial sectors and eliminate small boilers; Cement, steel and small coal-fired power producers are also the targets of China's air quality improvement actions; At the same time, coal has also begun a large-scale clean transformation to coal to oil, coal to gas, coal chemical industry and other fields
the most important area of coal consumption in China is power generation. According to the IEA report, one ton of global coal is used for power production in China for every four tons. Therefore, the fate of coal largely depends on China's power system. Since 2016, the rebound in China's electricity consumption has supported the growth of global coal consumption. The report predicts that China's growing middle class will increase the electrification of transportation and heating, and electricity consumption will also increase. Global coal demand is very sensitive to China's power consumption trend
"in fact, China has made a very important contribution to the emission reduction of coal-fired power units in recent years." Paul Simmons, deputy director of IEA, said during the discussion. He stressed that China has made remarkable achievements in reducing emissions of nitrogen oxides, sulfur dioxide and soot
China's achievements in achieving ultra-low emissions from 70% coal-fired power have attracted worldwide attention
Liu Baohua, deputy director of the national energy administration, confirmed the statement of the IEA report in his speech at the press conference. He said that China takes clean and low-carbon as an important direction of energy development, constantly optimizes the coal consumption structure, and comprehensively promotes clean and efficient utilization. On the one hand, gradually increase the proportion of power coal in coal consumption; On the other hand, we will vigorously promote ultra-low emissions and energy-saving transformation of coal and electricity. By the end of the third quarter of 2018, the coal-fired power industry had completed a total of 700million kW of ultra-low emission, high efficiency, full-featured and easy to operate transformation, 650million kW of energy-saving transformation, and 70% of coal-fired power units had achieved ultra-low emissions. China has built the world's largest clean coal-fired power system
the latest data provided by Wang Xianzheng, President of the China Coal Industry Association, further highlights the achievements of China's clean and efficient utilization of coal: by the end of 2018, the ultra-low emission technological transformation of China's coal power plants had actually completed 810 million KW, meeting or lower than the emission standards of gas-fired power plants. The high-efficiency pulverized coal industrial boiler technology with China's independent intellectual property rights realizes that the thermal efficiency of bulk coal combustion reaches more than 90%, and the main emission indicators such as smoke, sulfur dioxide and nitrogen oxides meet or approach the emission standards of gas-fired boilers
"at the same time, modern coal chemical technology has also made important breakthroughs in China, providing a path for the clean transformation of coal." Wang Xianzheng said that the demonstration of coal direct liquefaction, indirect liquefaction, coal to olefins, low-grade coal classification and quality utilization, coal to ethylene glycol, coal to gas and other technologies has been successful. With a number of large-scale projects completed and put into operation, modern coal chemical industry has entered the stage of industrial development. According to the plan, at the end of the 13th five year plan, China will build a coal to oil production capacity of 15million tons, coal to gas of 18billion cubic meters, coal to olefins of more than 12million tons, coal to ethylene glycol of more than 6million tons, coal aromatics of more than 1million tons, and new high sulfur coal to methanol of 10million tons. All the above-mentioned planning projects will be completed, and about 200million tons of raw coal will be added. This means that in China, coal is changing from "fuel" to "raw material"
Li Yanjiang, chairman of China Coal Energy Group, Ling Wen, general manager of China National Energy Group and academician of the Chinese Academy of engineering, combined with their own reality, showed that Chinese enterprises are committed to clean and efficient development in the industrial chain of coal mining, utilization and transformation. According to Ling Wen, the national energy group completed and operated the first "ultra-low emission" coal-fired power generation unit in China in 2014. At present, all coal-fired power generation units in the group have achieved desulfurization and denitration, and 98% of conventional coal-fired power generation units have achieved ultra-low emissions. According to the requirements, all coal-fired units in China will achieve ultra-low emissions by 2020, and the total emission of major pollutants from coal-fired power generation will be reduced by more than 90% compared with 2013
ccus strongly promotes that coal can become clean energy in China. Of course, the ultra-low emission transformation of coal-fired power units that China is currently fully promoting is mainly to reduce emissions of nitrogen oxides, sulfur dioxide and soot. The report released by IEA believes that as a high-carbon energy, the future sustainable development of coal depends on CCUs, that is, reducing carbon emissions. "Without CCUs, there would be no future for coal," the report said
according to Ling Wen, CCUs and CCS (carbon dioxide capture and storage) technologies are the key technologies for the low-carbon transformation and utilization of fossil energy to cope with climate change. (5) check whether there is oil leakage at each oil pipe joint to attract high-level talent teams at home and abroad: one of the key technology options. At present, ccs/ccus industrialization demonstration projects in oil and gas fields, chemical industry, electric power and other industries carried out abroad are mainly concentrated in Canada, the United States, Norway and other countries
"although ccs/ccus technology in China started late, it has been vigorously promoted in recent years with the support of the government." Ling Wen told that the "carbon capture, utilization and storage project" of Yanchang oil, located in Yan'an Yulin region of Shaanxi Province, is a project of the heads of state of China and the United States. Two pilot test areas for carbon dioxide oil displacement and storage have been built in Jingbian and Wuqi oilfields, with a cumulative storage of more than 50000 tons of carbon dioxide. In terms of coal power, China Huaneng Group Shidongkou 120000 ton/year coal-fired power plant carbon capture demonstration project has been completed and put into operation, and the carbon dioxide produced is mainly sold to local food and dry ice manufacturing enterprises. The 100000 ton/year full process CCS demonstration project built by the national energy group injects supercritical carbon dioxide into the 2243.6 meter deep formation. It is the world's first full process CCS project located in the salt water layer, marking that the national energy group has mastered the key technology of carbon dioxide capture and storage
it is understood that in order to further realize the low-carbon and clean utilization of coal, the state plans to build a coal-fired carbon capture innovation base in the implementation plan of the "2030 major project for clean and efficient utilization of coal", and plans to build a million ton CCUs demonstration project and transportation pipeline. Academician Ling Wen is the person in charge of this major project. He said, "the inclusion of clean and efficient utilization of coal in the 2030 major national scientific and technological innovation projects shows the determination of the Chinese government to achieve clean, efficient and green low-carbon development of the coal industry."
"we have noticed the rapid development of CCUs technology in China." Paul Simmons, deputy director of IEA, said, "China has become one of the world's leading countries in the field of CCUs."
Wang Xianzheng, President of China Coal Industry Association, told that from the ultra-low emission of more than 70% of coal-fired power units to the strong promotion of ccs/ccus technology, China, as the world's largest coal country, is promoting the comprehensive emission reduction of coal from denitration (NOx), desulfurization, dust removal to decarbonization. The practice of clean and efficient development of coal in China tells the world that coal can become a clean energy, and the prospect of coal industry is still bright
Copyright © 2011 JIN SHI