Coal,which has long been regarded as the culprit of environmental pollution,has been criticized.However,with the development of science and technology,the problem of coal pollution has been re-recognized.

　　At the 2019 Clean Power International Engineering Science and Technology High-end Forum held recently,Xie Kechang,an academician of the Chinese Academy of Engineering,used irrefutable facts and data to explore the possibility of coal energy changing from"black"to"green".His views were unanimously agreed by the participants.

　　Academician of the Chinese Academy of Engineering Xie Kechang said that if ultra-low emission levels of coal-fired power generation exceed natural gas power generation,why use natural gas as clean energy?Clean and efficient coal should also be regarded as clean energy.

　　He said that in terms of carbon emissions,natural gas,coal and oil are all high-carbon energy.If the carbon emission of natural gas is compared to 1,the carbon emission of petroleum is 1.3,and that of coal is 1.5.

　　"But in fact,through ultra-low emission technology and through end treatment,the particulate matter in coal power generation can be reduced to the lowest,"Xie Kechang said that the problems caused by coal are self-evident,but this is not actually a problem of coal itself.It is the improper exploitation and utilization of coal that makes people think that coal is unclean.

　　China's operating data has shown that particulate emissions are greatly reduced after ultra-low emissions are achieved,and some pollutants are emitted less than natural gas.Now China's coal-fired power generation pollutant emission level is already the highest in the world,and the ultra-low emission effect is very obvious.

　　China is a major energy producer and consumer in the world,and coal occupies an important position.For a long time,in China's energy production and consumption structure,coal accounts for about 70%.After years of hard work,in 2018,China's coal share has dropped to 59%.

　　Coal-fired power generation is very important to provide electricity to many parts of the world.But this is also an important source of carbon dioxide emissions.One third of the global carbon dioxide emissions come from coal power.

　　Xie Kechang also said that it cannot be considered that coal cannot be cleaned and used.As long as the technology is proper,coal can be cleaned and used.

　　Wang Xiangxi,Chairman of National Energy Group,said that as the world's largest coal production,thermal power generation,wind power generation and kerosene oil chemical enterprise,National Energy Group has built the world's first million-kilowatt coal-fired power unit,and the coal consumption for power supply has reached 266.3 In kWh,the power generation efficiency reached 47.8%.At present,91%of coal-fired units have achieved ultra-low emissions,and 98%of the units have achieved ultra-low emissions.