17 Result(s)

Article

The Influence of Test Conditions for the Second Hydrocracking Stage Catalysts on the Time to Reach Steady-State Activity

Catalysts of the second stage of hydrocracking are tested under different conditions, reducing the time required to reach the level of steady-state activity. Tests are performed on a laboratory testbench under...

I. S. Golubev, P. P. Dik, M. O. Kazakov, O. V. Klimov… in Catalysis in Industry (2023)

Article

Dynamics of Silicon Sorption on the NiMo/Al₂O₃ Guard Bed Catalyst During Hydrotreating of Diesel

The dynamics of the silicon sorption on the NiMo/Al₂O₃ guard-bed catalyst containing ~2.0 wt % Ni and ~6.0 wt % Mo during hydrotreating of diesel was studied. The catalyst bed was divided into five equal sections...

I. S. Golubev, P. P. Dik, R. V. Petrov, I. A. Mik, N. V. Bessonova… in Petroleum Chemistry (2023)

Article

Effects of Tar Hydrocracking on Subsequent Carbonization

The study investigated thermal carbonization of oil tar in comparison with tar carbonization over a Ni/Sibunit catalyst at 450–600°C. The addition of Ni/Sibunit to the tar slightly enhanced the yield of coke. ...

V. V. Chesnokov, P. P. Dik, A. S. Chichkan, V. N. Parmon in Petroleum Chemistry (2022)

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...

P. P. Dik, M. O. Kazakov, A. V. Saiko, O. V. Klimov, V. Yu. Pereyma… in Petroleum Chemistry (2020)

Article

Hydrogenation of Bituminous Sand

The effect of the conditions of bituminous sand hydrogenation on the yields and properties of the resulting liquid hydrocarbons was studied. It was found that, on the hydrogenation of bituminous sand, hydrocar...

M. O. Kazakov, P. P. Dik, O. V. Klimov, O. O. Mironenko… in Solid Fuel Chemistry (2018)

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 ...

M. O. Kazakov, P. P. Dik, O. V. Klimov, A. V. Shaverina… in Solid Fuel Chemistry (2018)

Article

Hydrocracking of Vacuum Gasoil on NiMoW/AAS-Al₂O₃ Trimetallic Catalysts: Effect of the W : Mo Ratio

The effect of the W: (W + Mo) atomic ratio in NiMoW trimetallic catalysts on their catalytic and physicochemical properties is studied. The catalysts are prepared by impregnating a carrier containing amorphous...

P. P. Dik, V. Yu. Pereima, K. A. Nadeina, M. O. Kazakov… in Catalysis in Industry (2018)

Article

Hydrocracking of Vacuum Gasoil on NiMo/AAS-Al₂O₃ Catalysts Prepared from Citric Acid: Effect of the Catalyst Heat Treatment Temperature

Ni-Mo bimetallic catalysts are prepared by impregnating a carrier containing amorphous aluminosilicate (AAS) and aluminum oxide using a solution with Ni, Mo, and citric acid. The temperature of the catalysts r...

P. P. Dik, K. A. Nadeina, M. O. Kazakov, O. V. Klimov… in Catalysis in Industry (2018)

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...

M. O. Kazakov, O. V. Klimov, P. P. Dik, A. V. Shaverina… in Petroleum Chemistry (2017)

Article

Influence of the conditions of hydrogenation treatment of black oil on the yield and properties of the products obtained

The conversion of black oil in hydrogen (hydroconversion) and nitrogen (pyrolysis) media was studied. The influence of the hydrogen pressure and temperature of the hydrotreating of black oil on the yield and p...

M. O. Kazakov, P. P. Dik, O. V. Klimov… in Russian Journal of Applied Chemistry (2016)

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...

V. Yu. Pereyma, P. P. Dik, O. V. Klimov… in Russian Journal of Applied Chemistry (2015)

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...

O. V. Klimov, G. I. Koryakina, E. Yu. Gerasimov, P. P. Dik… in Catalysis in Industry (2015)

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...

P. P. Dik, V. Yu. Pereyma, O. V. Klimov, G. I. Koryakina… in Catalysis in Industry (2014)

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...

P. P. Dik, O. V. Klimov, S. V. Budukva, K. A. Leonova… in Catalysis in Industry (2014)

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...

K. A. Leonova, O. V. Klimov, E. Yu. Gerasimov, P. P. Dik, V. Yu. Pereyma… in Adsorption (2013)

Article

Synthesis of carbon nanostructures on nickel catalysts from liquid hydrocarbons under conventional and microwave heating

E. I. Udalov, V. V. Chesnokov, P. P. Dik, Yu. Yu. Tanashev… in Doklady Physical Chemistry (2010)