论文部分内容阅读
煤炭是人类历史上最古老的能源之一,在很久以前人们就把它誉为“黑色的金子”,到了近代,人们又称它为“工业的粮食”。从历史上看,煤炭与人类文明的发展是息息相关的。到目前为止,已探明的全球煤炭储量约为1万多亿吨,我国约占其中的15％。在世界一次能源(直接来自自然界而未经加工转换的能源,如煤炭、石油、天然气等)消费结构中,目前煤炭所占的比重仍然在25％左右,仅次于石油而居第二位。
Coal was one of the oldest energy sources in mankind’s history. People long ago called it “black gold,” and in modern times it was also called “industrial grain.” Historically, the development of coal and human civilization is closely linked. So far, the proven global coal reserves have reached about 1 trillion tons, and China accounts for about 15% of the total. In the consumption structure of the world’s primary energy source (directly from the natural and untreated energy sources such as coal, oil and natural gas, etc.), the proportion of coal still stands at 25%, second only to petroleum.