Hydrogenation of C`'5 olefins in vapor phase on the copper oxide catalyst
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copper catalyst
vapor phase

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Sharanda, M., Mylin, A., Zinchenko, O., & Brei, V. (2021). Hydrogenation of C`’5 olefins in vapor phase on the copper oxide catalyst. Catalysis and Petrochemistry, (32), 93-98. Retrieved from https://kataliz.org.ua/index.php/journal/article/view/66


Hydrogenation of unsaturated hydrocarbons is one of the important processes of the modern petrochemical industry. Quite large amount of C4-5 fractions of hydrocarbons containing paraffins and olefins are formed via pyrolysis of light petroleum products. To increase the production of ethylene and propylene, the separated C4-5 fractions are recycled for pyrolysis. Preliminary hydrogenation of olefin compounds in these fractions is necessary. Preferably, the hydrogenation is carried out in the liquid phase at temperatures of 40 – 80 °C under hydrogen pressure up to 15 bar overhigh-cost palladium-containing catalysts. The aim of this work was to elucidate the possibility of efficient hydrogenation of industrial С5 fraction containing C`5 olefins over some mixed copper-oxide catalysts. Hydrogenation of C`5 fraction of 
pyrolysis of light petroleum products in the vapor phase over such catalysts as CuO-ZnO-ZrO2-Al2O3 and CuO-ZnOAl2O3 in comparison with commercial Pd/Al2O3 catalyst for C4-5 olefins hydrogenation have been studied. The pyrolysis C`5 fraction containing 51 wt. % of unsaturated hydrocarbons (2-methyl-1-butene, 2-pentene, cis-2-pentene, trans-2-pentene, 2-methyl-2-butene) was used in the work. The catalytic process was carried out in a reactor with a fixed catalyst bed at 170 – 190 oC, and a pressure of 1.1 – 2.5 MPa. Analysis of obtained products was provided by gas-chromatography (Agilent 7820A) and 13C NMR (Bruker Avance 400) methods. It is shown that the hydrogenation of olefins with conversion of the C`5 fraction such high as 98 – 99 % can be carried out in the vapor phase over CuO-ZnO-Al2O3 and CuO-ZnO-Al2O3 catalysts at the temperature of 180 oC and pressure 1.2 – 1.5 MPa. The total C5 olefinsloading can reach 15 – 23 mmol/gcat/h. The residual content of unsaturated hydrocarbons is 1 %. At the pressure of 2.5 MPa, a sharp decrease in conversion is observed, as n-pentane turns into a liquid phase. Catalyst deactivation was not observed for 36 hours. Under the same conditions the drop in activity of industrial catalyst 0.35 % Pd/Al2O3 was observed after 70 minutes from the start of work.

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Vyntu V. Technology of petrochemical industry. “Himiya”. M. 1969. 352. [in Russian]

Asinger F. Chemistry and technology of monoolefins. “Gostoptehisdat”. M. 1960. 740. [in Russian]

Patent US4230897 USA, Cosyns J., Stern R., Le Page J. Process for selectively hydrogenating a hydrocarbon cut containing at least one diolefinic hydrocarbon and at least one acetylenic hydrocarbon using a palladium catalyst with crystallites of at least 50 angstroms. 1980.

Patent US5227553 USA, Polanek P., Posselt D., Schreyer P. Selective hydrogenation of crude highbutadiene C4 cuts. 1993.

Patent US7045670 USA, Johnson M., Peterson E., Gattis S. Process for Liquid Phase Hydrogenation. 2005.

Brei V.V., Sharanda M.E., Prudius S. M. One-stage synthesis of ethyl acetate from ethanol over Cu/ZnO-ZrO2-Al2O3 catalyst. Ukrainian chemical journal. 2008. 74(12) 78. [in Russian]

Sharanda M.E., Sontsev V.M., Prudius S.M., Brei V.V. Conversion of glycerol into 1,2-propane diol over bifuncional catalysts. Chemistry, physics and technology of surface. 2012. 3(1). 61. [in Russian]

Rybak B.M. Analysis of oil and oil products. М. Gosgortehisdat, 1962. 352. [in Russian]