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Article
Conversion of Oil Shale Hydroconversion Products in the Presence of Supported Nickel–Molybdenum Sulfide Catalysts
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 suppor...
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Article
Influence of Temperature on the Hydrogenation of Oil Shale from the Kashpir Deposit
The effect of the hydrogenation temperature of oil shale from the Kashpir deposit on the yield and the properties of the resulting liquid hydrocarbons and gasoline and diesel fractions separated from them was ...
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Article
Hydroconversion of Oil Shale on Natural Mineral Matrices
The hydroconversion of high-sulfur oil shale in the presence of natural mineral matrices: shale ash, sandstone, and clay has been investigated. It has been shown that mineral matrices containing clays and iron...
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Article
Reactivation of CoMo/Al2O3 hydrotreating catalysts with chelating agents
Effect of various chelating components, multibasic carboxylic acids and glycols, used to prepare hydrotreating catalysts on the activity regeneration of calcined hydrotreating catalysts was studied. Reactivate...
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Article
Hydrocracking of vacuum gas oil in the presence of catalysts NiMo/Al2O3–amorphous aluminosilicates and NiW/Al2O3–amorphous aluminosilicates
Supported nickel–molybdenum and nickel–tungsten hydrocracking catalysts prepared using a support that consists of 70% Al2O3 and 30% amorphous aluminosilicate were characterized by nitrogen and mercury porosimetry...
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Article
Synthesis of NiW/Al2O3 hydrotreating catalysts from ammonium paratungstate using chelating agents
Procedures are suggested for preparing NiW/Al2O3 catalysts using ammonium paratungstate as a tungsten source and citric acid and D(+)-sorbitol as chelating agents. The catalysts prepared using the suggested reage...
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Article
A new catalyst for the deep hydrotreatment of vacuum gas oil, a catalytic cracking feedstock
A new CoNiMo/Al2O3 deep vacuum gas oil hydrotreatment catalyst designed for the production of catalytic cracking feedstocks containing 200–500 ppm of sulfur is developed. The method for its preparation includes t...
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Article
Vacuum gasoil hydrocracking over three-layered packages consisting of supported sulfide NiMo and NiW catalysts
A method for vacuum gas oil hydrocracking using a three-layered package of catalysts is proposed, in which the top layer is NiMo/Al2O3, the middle is NiM/AAS-Al2O3 and the bottom is NiM/Y-Al2O3, where M is molybd...
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Article
Silica-alumina based nickel-molybdenum catalysts for vacuum gas oil hydrocracking aimed at a higher diesel fraction yield
Nickel-molybdenum hydrocracking catalysts based on amorphous silica-aluminas (ASAs) with Si/Al = 0.3–1.5 have been prepared using chemicals and methods available for catalyst plants. The acidic properties of t...
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Article
Textural characteristics of sulphided hydrotreatment catalysts prepared using Co–Mo complex compounds
Sulphided Co–Mo catalysts prepared by supporting (CoL)2[Mo4(C6H5O7)2O11]·xH2O on γ-Al2O3 were studied. Pores with diameters less than 40 Å in the catalysts preliminary dried at 120 °C were observed. The volume of...
