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2018/3
Decomposition of carbonyl and cyclopentadienyl complexes Cr, Mn and Fe on nickel and palladium on aluminic oxide
Chemical sciences

Authors: Valentine D. STYTSENKO graduated from Gubkin Moscow Institute of petrochemical and Gas Industry in 1963. Doctor of Chemical Sciences, Professor of the Department of Physical and Colloid Chemistry of Gubkin Russian State University of Oil and Gas (National Research University) since 2002, expert in the field of Petrochemistry, Catalysis and Kinetics. Author of more than 150 scientific publications. E-mail: vds41@mail.ru
Dmitrii P. MEL’NIKOV graduated from Gubkin Russian State University of Oil and Gas in 2010. Engineer of the Department Physical and Colloid Chemistry of Gubkin Russian State University of Oil and Gas (National Research University). Specialist in the field of catalysis. He is author of 4 scientific publications. E-mail: melnickd@mail.ru

Abstract: Decomposition of carbonyl and cyclopentadienyl complexes of Cr, Mn, and Fe on nickel and palladium on aluminium oxide is studied as a method for preparation bimetallic catalysts comprising Group VI-VIII metals. A sequence and kinetics of decomposition is revealed in the hydrogen atmosphere. As a result, bimetallic nanoparticles are shown to form on the surface. Physicochemical properties of bimetallic compositions obtained are characterized

Index UDK: 544.46; 544.478

Keywords: Cr, Mn, Fe, carbonyl/сyclopentadienyl complexes, decomposition, bimetallic compositions Ni-Cr, Pd-Cr, Pd-Mn, Pd-Fe, physicochemical properties

Bibliography:
1.Ertl G., Knözinger H., Schüth F., Weitkamp J. Handbook of Heterogeneous Catalysts. VCH. Weinheim. Germany, 1997, vol. 5, 2165 p.
2. Matar S., Hatch L. F. Chemistry of petrochemical processes. 2nd Edition. Elsevier Inc., 2001, p. 238-261.
3. Kirk-Othmer Encyclopedia of Chemical Technology. New York, John Wiley, 2004, vol. 20, 126 p.
4. Plate N.A., Slivinskii E.V. Osnovy khimii i tekhnologii monomerov. [Fundamentals of Chemistry and Technology of Monomers]. M.: MAIK Nauka, 2002, 696 p.
5. Weerachawanasak P., Praserthdam P., Arai M., Panpranot J. J. Mol. Catalysis A. Chemical, 2008, vol. 279, p. 133-139.
6. Bhogeswararao S., Srinivas D. Catalysis Letters, 2010, vol. 140 (1), p. 55-64.
7. Volpe M.A., Rodriguez P., Gigola C.E. Catal. Lett, 1999, vol. 61, p. 27-32.
8. Margitfalvi J., Szabó S., Nagy F. Catalytic Hydrogenation, Stud. Surf. Sci. Catal., Elsevier, Amsterdam, 1986, vol. 27, 373 р.
9. Schatz A., Reiser O., Stark W. European Journal, 2010, vol. 16, issue 30, p. 8950-8967.
10. Molchanov V.V., Chesnokov V.V., Buyanov R.A. Kinetika i cataliz, 2005, vol. 46, p. 702-709.
11. Bal’zhinimaev B.S., Barelko V.V., Suknev A.G. Kinetika i cataliz, 2002, vol. 43, p. 587-593.
12. De Rogatis L., Cargnello M., Gombac V., Fornasiero P. ChemSusChem, 2010, vol. 3, p. 24-42.
13. Stytsenko V.D., D’yakonov A.Yu., Maksimov Yu.V., Eigenson I.A., Narkevich L.D. Kine-tika i cataliz, 1987, vol. 28, p. 915-920.
14. Stytsenko V.D. Applied Catalysis A. General, 1995, vol. 126, p. 1-26.
15. Stytsenko V.D. Trudy RGU nefti i gasa imeni I.M. Gubkina [Ptoceedings of Gubkin Russian State University of Oil and Gas], 2009, no. 2, p. 133-144.
16. Stytsenko V.D. Kinetic Descriptions of Heterogeneous Catalytic Processes Using Adsorption Substitution Reactions. Zh. Fizicheskoi khimii [Russian Journal of Physical Chemistry], 2018, vol. 92, no. 2, p. 244-254.
17. Stytsenko V.D., Mel’nikov D.P., Tkachenko O.P., Savel’eva E.V., Semenov A.P., Kus- tov L.M. Zhyrnal Fizicheskoi khimii [Russian Journal of Physical Chemistry], 2018, vol. 92, no. 5, p. 691-702.

2009/2
Synthesis of diisopropyl ether by isopropanol condensation over heteropolycompounds
Oil and gas processing, chemistry of oil and gas

Authors: Aleksey Alexandrovich LAVRINENKO was born in 1984. In 2007 he graduated from Gubkin Russian State University of Oil and Gas. The post-graduate student of faculty of physical and colloidal chemistry of Gubkin Russian State University of Oil and Gas. The author of 1 publication. E-mail: lavrinenko_a@mail.ru
Valentin Dmitrievich STYTSENKO was born in 1941. He graduated from Gubkin Moscow Institute of Petrochemical and Gas Industry in 1963 (now Gubkin Russian State University of Oil and Gas). Doctor of Сhemistry, the lecturing professor of the Dept. of physical and colloidal chemistry of Gubkin Russian State University of Oil and Gas. He is the author of 150 scientific publications. Е-mail: vds41@mail.ru

Abstract: Perspectives of using of heteropolycompounds (HPC) as catalysts in isopropanol dehydration are shown. Optimal composition and concentration of HPC on the surface is found. The catalysts provide maximal yield of diisopropyl ether (DIPE) of 21.3 %. The influence of basic parameters of the process on the activity and selectivity of the catalysts is studied. The best result is obtained at temperatures of 135−145 °С and concentration of water 2 % wt. Based on HPC catalysts were shown to possess the higher activity (up 5−10 times) as compared with industrial zeolite catalysts

Index UDK: 665.73/753:547.27

Keywords: catalysts, heteropolycompounds, isopropanol dehydration

Bibliography:

2009/2
Polymetallic catalysts modified in the surface nanolayer
Oil and gas processing, chemistry of oil and gas

Authors: Valentin Dmitrievich STYTSENKO was born in 1941. In 1963 he graduated from Gubkin Moscow Institute of Petrochemical and Gas Industry. Doctor of chemistry, the lecturing professor of faculty of physical and colloidal chemistry of Gubkin Russian State University of Oil and Gas. The author of 150 scientific publications. Е-mail: vds41@mail.ru

Abstract: A new concept for preparing catalysts with predetermined properties has been considered. The concept is based upon recording information concerning further catalytic process on the surface nanolayer. The surface nanolayer conversion is found to be governed by its reactivity (r) and diffusivity (j) at the stages of preparation and pretreatment of catalysts. The requirements to the nature of element and its compound (ELn) to obtain good modifying effects for catalysts are specified. The tests of bimetallic catalysts prepared (Ni-Sn, Ni-Cr, Pd-Cr, Pd-Cr-Si) have demonstrated their advantages as compared with known catalysts for various hydrogenation and dehydrogenation processes, especially in terms of improved selectivity and stability to poisons. The ligand effect for SMB is discussed and good prospects for this new class of catalysts are predicted.

Index UDK: 66.023:541.128

Keywords: new class of catalysts, surface nanolayer, bimetallic catalysts for hydrogenation and dehydrogenation, hydrocracking and hydrorefining processes, advantages, selectivity, stability to poisons

Bibliography: