Abstract—Isotropic coke is needed for the production of fine-grain graphite, which is employed throughout industry. In turn, isotropic coke may be produced from the residues obtained in atmospheric distillation of shale tar, after their thermal oxidation. The formation of isotropic coke by the carbonization of such thermally oxidized residues was considered in [1–3]. In the present work, the production of isotropic coke from a different source is considered—specifically, from shale-waste oil (SWO), which is the hydrocarbon residue obtained on washing the polluted wastes from shale-tar processing. In terms of mesogenic properties, shale-waste oil resembles the atmospheric distillation residues of shale tar. This paper shows that undesirable impurities may be removed from shale-waste oil and that the isotropic coke derived from the resulting oil meets the requirements for the production of fine-grain graphite. In this paper the next denotations are made: isooctane-soluble fraction is denoted as gamma fraction, isooctane-insoluble-toluene-soluble is denoted as beta fraction, toluene-insoluble-quinoline-soluble is denoted as alpha fraction, the fraction insoluble in quinoline, pyridine and carbon disulfide is denoted as alpha-1 fraction.

中文翻译：

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页岩废油生产各向同性煤

摘要-各向同性焦炭是生产整个行业中使用的细颗粒石墨所必需的。反过来，在页岩焦油经热氧化后，也可从常压蒸馏得到的残渣中产生各向同性焦炭。在[1-3]中考虑了通过这些热氧化残渣的碳化形成各向同性焦炭。在目前的工作中，考虑了从不同来源生产各向同性焦炭的方法，特别是从页岩废油（SWO）生产的方法，该废油是洗涤页岩焦油加工中的污染废物时获得的烃类残留物。就介晶性质而言，页岩废油类似于页岩焦油的常压蒸馏残留物。本文表明，可以从页岩废油中去除不良杂质，并且由所得油衍生的各向同性焦炭可以满足生产细粒石墨的要求。在本文中，下一个含义是：异辛烷可溶级分表示为gamma分数，异辛烷不溶甲苯可溶级表示为β分数，甲苯不溶喹啉可溶级表示为α分数，不溶于喹啉的级分，吡啶和二硫化碳表示为α-1部分。