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Abstract

The technology has been developed for the production of unsaturated alloy nickel hydrogenation catalysts. The results of the study of the phase, chemical compositions and structure of nickel alloys and catalysts showed that the ferroalloy introduction as a modifying additive affects the NiAl3 / Ni2Al3 ratio. The studied alloying metals are practically insoluble in alkali and exist in the catalyst in dissolved states. All these changes favorably affect the catalytic properties of modified nickel catalysts in the benzene hydrogenation reaction. A systematic study of the stationary catalyst activity with addition of ferroalloys in the continuous catalytic benzene hydrogenation was carried out with a wide variation of the process parameters. All catalysts are dominated by particles with R = 0-2 microns, the concentration of which reaches 75-89%. Table 1 shows that, with an increase in the amount of additives in alloys from 3 to 9% by weight, the concentration of particles with R = 0-2 μm in catalysts decreases differently within 89-75%, depending on the nature of the alloying metals. In addition, modifying additives also increase the concentration of particles with R = 2-4 μm. The results of optical microscopy show that almost all studied skeletal nickel catalysts are enriched by 90-99% in particles with Rmax = 1-5 μm. A systematic study of the stationary catalyst activity with addition of ferroalloys in the reaction of continuous catalytic benzene hydrogenation with a wide parameter variation of the technological process has been carried out. At the same time, it is highly active, stable and selective for cyclohexane new stationary catalysts for industrial purposes operating at temperatures up to 140°C and pressure up to 8 MPa.

First Page

36

Last Page

44

DOI

https://doi.org/10.51346/tstu-01.21.1-77-0099

References

  1. Molina R., Poncelet G. Hydrogenation of benzene over alumina-supported nickel catalysts prepared from Ni (II) acetylacetonate. // J. Catal. 2001. V. 199. No. [2] P. 162-170.
  2. Viller et al. World Fuel Charter // Oil refining and petrochemistry. 1999. No. 6. S. 50-55
  3. Sheldon G. Shore, Errun Ding, Colin Park, Mark A. Keane. Vapor phase hydrogenation of phenol over silica supported Pd and Pd-Yb catalysts. // Catalysis Communication 3, 2002. P.77-84.
  4. Armaroli T., Bevilacqua M., Trombetta M., Alejandre AG, Ramirez J., Busca G. An FT-IR study of the adsorption of aromatic hydrocarbons and of 2,6-lutidine on H-FER and H-ZSM-5 zeolites. // Appl. Catal. A Gen. 2001. V. 220. P. 181-190.
  5. Zhu Y., Lee CN, Kemp RA, Hosmane NS, Maguire JA Latest developments in the catalytic application of nanoscaled neutral group 8-10 Metals. // Chem. Asian J. 2008. V. 3. No. 4. P. 650-662
  6. Turadzhanov S., Kedelbaev B., Tashkaraev R.Hydrogenation of Benzene on Nickel Catalysts Promoted by Ferroalloys. Theoretical Foundations of Chemical Enqineerinq ,, Yol. 47, No. 5, 633-634, 2013
  7. Konuspayev S.R., ShaimardanM., Nurbaeva D.R., Auezov A.B., Voronin I. Rhodium catalysts for hydrogenation of benzene and its homologues in various solvents, Petrochemistry, volume 50, No. 1, 2010, pp. 48-51.
  8. Hou Y., Kondoh H, Ohta T., Gao S. Size-controlled synthesis of nickel nanoparticles. // Appl. Surf. Sci. 2005. V. 241. No. 1-2. P. 218-222.
  9. Butov, GM, Hydrogenation of benzene on ruthenium catalysts supported on aluminum and rare earth oxides. Refining and petrochemicals, 2005, No. 11 .- S. 14-16
  10. Kameoka S., Kimura T., Tsai AP A Novel Process for Preparation of Unsupported Mesoporous Intermetallic Ni-Zn and Pd-Zn Catalysts. // Catal. Lett. 2009. V. 131. No. 1-2. P. 219224.
  11. MarcinPisarek, MariuszLukaszewski, PiotrWiniarek, PiotrKedzierzawski, Maria Janik-Czachor. Influence of Cr addition to Raney Ni catalyst on hydrogénation of isophorone. // Catalysis Communications 10, 2008. P.213-216.
  12. Mashkovsky IS, Baeva GN, Stakheev AY, Voskoboynikov TV, Barger PT Pd / Al203 catalyst for selective hydrogenation of benzene in benzene-toluene mixture. // Mendeleev Commun. 2009. V. 19.No. 2. P. 108-109.
  13. Navalikhina M.D., Krylov O.V. Development and industrial use of new hydrogenation catalysts. // Kinetics and Catalysis. 2001. T. 42. No. 1. S. 86-98.
  14. Wang S., Lin W., Zhu Y., Xie Y., Chen J. Preparation and catalytic performance of monolayer-dispersed Pd / Ni bimetallic catalysts for hydrogenation. // Front. Chem. China. 2008. V. 3. No. 2. P. 161-165.
  15. Loviat F., Czekaj I., Wambach J., Wokaun A. Nickel deposition on y-Al2Oz model catalysts: An experimental and theoretical investigation. // Surf. Sci. 2009.V. 603. No. 14. P. 2210-2217.
  16. Kedelbaev B., Turtabayev S,Shalabaeva G., Sarbaeva K.Synthesis and Research of the Nickel Catalysts of Liquid-Phase Hydrogenation of Benzene,Contemporary Engineering Sciences, Vol. 8, 2015, no. 3, 127 - 135
  17. Turadzhanov S., Kedelbaev B., Tashkaraev R.Hydrogenation of Benzene on Nickel Catalysts Promoted by Ferroalloys. Theoretical Foundations of Chemical Enqineerinq ,, Yol. 47, No. 5, 633-634, 2013

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