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煤炭是化石能源中最差的一种能源,含污染物多,燃烧时排出的CO_2多,在第二次能源大转换中,照理应当被优质化石能源石油和天然气替代。但是煤炭具有储量丰富,开采成本低,污染物容易控制等优点,发达国家把煤炭用于发电及冶金、化工、建材等工业原料;发展中国家把煤炭作为民用采暖和炊事用能以及工业原料和燃料,此外还大量用于发电,直到现在煤炭在一次能源消费结构中仍占有一席之地。今后在第三次能源大转换中,由化石能源转向低碳、清洁、可持续发展的能源体系时,煤炭可以采用洁
Coal is the worst type of energy in fossil fuels. It contains more pollutants and more CO 2 is emitted during combustion. In the second major energy conversion, it should be replaced by high-quality fossil energy petroleum and natural gas. However, coal has the advantages of abundant reserves, low exploitation cost and easy control of pollutants. Developed countries use coal for power generation and industrial raw materials such as metallurgy, chemical industry and building materials. Developing countries use coal as a domestic heating and cooking energy as well as industrial raw materials and Fuels, in addition to being largely used for power generation, still occupy a place in the primary energy mix until now. In the future in the third major energy conversion, from fossil fuels to low-carbon, clean and sustainable energy system, coal can be used clean