氢元素是煤中第二重要的元素,主要存在于煤分子侧链和官能团上,随煤化程度的提高而呈下降趋势。煤中氢以符号Hdaf表示(过去用Hr)。是煤中有机质的主要组成元素。燃烧时,氢所产生的热量比碳高,约为碳的4.2倍。
研究结果证实,煤水平衡接触角首先受煤中氢、氧元素含量影响最大,其次与煤的灰分产率有很强的线性相关关系。
The research results showed that the contact angle of the coal water balance would be highly influenced by the hydrogen and oxygen contents of coal and had a hig…
研究结果证实,煤水平衡接触角首先受煤中氢、氧元素含量影响最大,其次与煤的灰分产率有很强的线性相关关系。
The research results showed that the contact Angle of the coal water balance would be highly influenced by the hydrogen and oxygen contents of coal and had a high lining rel...
千万年以来,人类的主要燃料是木头,燃烧木头的过程中,碳和氢的比率是10比1。相比较而言,煤在燃烧过程中这个比率是2比1,而石油的比率则是1比2。
Humanity's main fuel for eons was wood, which has a carbon-to-hydrogen ratio of 10 to 1 when burned; by comparison, that ratio is 2 to 1 for coal and 1 to 2 for oil.
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