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重油

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一瓶重油

重油,又称燃料油,是原油提取汽油柴油后的剩余重质油,其特点是分子量大、黏度高。重油的比重一般在0.82~0.95,热值在10,000~11,000kcal/kg左右。其成分主要是碳氢化合物,另外含有部分的(约0.1~4%)的硫黄及微量的无机化合物

用途

以蒸汽涡炉作为动力的大型船舰会以重油作为燃料,图为美国常规动力航空母舰独立号

主要用于大型蒸汽涡炉轮机船舰、燃气轮机机车及中大型船舶用引擎的燃油。重油可以用作现代大型燃煤锅炉的启动点火燃料。现在对重油的研究方向主要是长链烃的裂化,目的是通过裂解重油得到轻质的柴油或者煤油。此外,二战其间重油可用于制造燃烧弹

参见

外部链接

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重油
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