Physical and Chemical Characteristics of Cobalt Catalysts in the Process of Hydrogenating Acetylene

  • S.K. Tanirbergenova Institute of Combustion Problems, 172, Bogenbay Batyr str., Almaty, Kazakhstan
  • D.A. Tugelbaeva Institute of Combustion Problems, 172, Bogenbay Batyr str., Almaty, Kazakhstan
  • G.M. Moldazhanova Institute of Combustion Problems, 172, Bogenbay Batyr str., Almaty, Kazakhstan
  • S.R. Khairullin Federal Research Center Boreskov Institute of Catalysis SB RAS, pr. Akad. Lavrentieva, 5, Novosibirsk, Russia

Abstract

This paper describes the results of studies of the physicochemical characteristics of cobalt catalysts and methods for modifying them with alumina. The elemental composition, the peculiarities of formation of the structural and phase composition of cobalt catalysts are studied. The influence of the carbonization process of cobalt catalysts at a temperature of 550°С on the specific surface is determined. The increase in the specific surface in cobalt catalysts was studied to proceed uniformly, as the formation of large grains and accumulations of active components was not observed. According to the results of X-ray diffraction (XRD) analysis, the formation of aluminosilicate phases, cobalt oxide, and cobalt are detected. The surface of cobalt samples was investigated by scanning electron microscope (SEM). Electron microscopy revealed crystallites of cobalt particles with sizes of 300‒400 nm. It is shown that in the course of modification with alumina, in cobalt catalysts active centers are formed that enhance their catalytic properties during the reaction of hydrogenation of acetylene to ethylene. It is found that cobalt catalysts exhibit catalytic activity in the acetylene hydrogenation reaction. On cobalt catalysts at a temperature of 160°C at a conversion of 82%, the yield of ethy lene is 64.1%.

References

(1). T.N. Afonasenko, N.S. Smirnova, V.L. Temerev, N.N. Leontieva, T.I. Glyaeva, P. G. Tsyrulnikov, Kinet. Catal. 57 (2016) 493‒500. Crossref

(2). D. V. Glyzdova, N. S. Smirnova, D. A. Shlyapin, P. G. Tsyrulnikov, Russian Chemistry Journal [Rossiiskii Khimicheskii Zhurnal] 62 (2018) 89‒109 (in Russian). Crossref

(3). V.V. Chesnokov, D.A. Sventsitskii, S.A. Chichkanov, V.N. Parmon, Nanotechnol. Russia 13 (2018) 246‒255. Crossref

(4). A.A. Gavrilova, Investigation of the features of the formation of oxide block catalysts for complete oxidation. The influence of the composition and method of preparation. Thesis of dissertation for the degree of candidate of chemical sciences. Kemerovo, 2018.

(5). S.K. Tanirbergenova, N.K. Zhylybayeva, S.Zh. Tairabekova, D.A. Tugelbayeva, G.M. Naurzbayeva, G.M. Moldazhanova, B.A. Mansurov, Eurasian Chem. Tech. J. 20 (2018) 249‒254. Crossref

(6). S.K. Tanirbergenova, N.K. Zhylybayeva, S.Zh. Tairabekova, D.A. Tugelbayeva, G.M. Naurzbayeva, G.M. Moldazhanova, Z.A. Mansurov. Catalyc effect of nanosized catalysts in the process of hydrogenating acetylene to ethylene. 21st World Congress Nanotechnology, October 15-17, 2018. Dubai, UAE. P. 58.

(7). V.V. Chesnokov, A.S. Chichkan, Z.R. Ismagilov, Kinet. Catal. 58 (2017) 649‒654. Crossref

(8). T.V. Choudhary, C. Sivadinarayana, A.K. Datye, D. Kumar, D.W. Goodman, Catal. Lett. 86 (2003) 1‒8. Crossref

(9). L.Z. Kasyanova, R.R. Daminev, O.Kh. Karimov, E.Kh. Karimov, D.V. Bakke, M.Yu. Cherezov, Bashkir chemical journal [Bashkirskij himicheskij zhurnal] 23 (2016) 30‒33 (in Russian).

(10). A.A. Lamberov, S.R. Egorova, I.R. Ilyasov, H.H. Gilmanov, S.V. Trifonov, V.M. Shatilov, A.S. Ziyatdinov, Kinet. Catal. 48 (2007) 136‒142. Crossref

(11). V. D. Stytsenko, D. P. Melnikov, Russ. J. Phys. Chem. 90 (2016) 932-942. Crossref

(12). E.B. Stiles Carriers and deposited catalysts: theory and practice. M.: Chemistry, 1991. P. 101‒132.

Published
2019-12-17
How to Cite
[1]
S. Tanirbergenova, D. Tugelbaeva, G. Moldazhanova, and S. Khairullin, “Physical and Chemical Characteristics of Cobalt Catalysts in the Process of Hydrogenating Acetylene”, Eurasian Chem. Tech. J., vol. 21, no. 4, pp. 341-346, Dec. 2019.
Section
Articles