Abstract

The conversion of oil shale (OS) in a hydrogen medium at a pressure of 6.0 MPa and a temperature of 400°C with the subsequent refining of the resulting products in the presence of NiMo sulfide catalysts supported on materials exhibiting different acidities has been studied. It has been found that the use of the catalysts leads to a significant decrease in the content of sulfur, nitrogen, aromatic hydrocarbons, and olefins in the liquid products obtained from the shale. It has been shown that the catalytic refining of OS hydroconversion products makes the fractional composition of synthetic oil lighter and increases the H/C ratio. The use of the catalysts leads to a decrease in the synthetic oil yield owing to the formation of hydrocarbon gas and coke deposits on the catalysts; in this case, the synthetic oil yield varies in the following order: catalyst-free (25.7 wt %) > NiMo/ASA–Al₂O₃ (22.0 wt %) > NiMo/Al₂O₃ (20.7 wt %) > NiMo/USY–Al₂O₃ (15.8 wt %).

中文翻译：

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负载型镍钼硫化钼催化剂对油页岩加氢转化产物的转化

摘要

已经研究了油页岩（OS）在6.0 MPa的压力和400°C的温度下在氢介质中的转化，随后在负载有表现出不同酸度的材料上负载的NiMo硫化催化剂的存在下精制所得产物。已经发现，使用催化剂导致从页岩获得的液体产物中硫，氮，芳族烃和烯烃的含量显着降低。已经表明，OS加氢转化产物的催化精制使得合成油的馏分组成更轻并且增加了H / C比。催化剂的使用由于在催化剂上形成烃气和焦炭沉积物而导致合成油收率的降低。在这种情况下，合成油的产量按以下顺序变化：₂ O ₃（22.0 wt％）> NiMo / Al ₂ O ₃（20.7 wt％）> NiMo / USY–Al ₂ O ₃（15.8 wt％）。