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https://doi.org/10.37358/Rev.Chim.1949

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Revista de Chimie (Rev. Chim.), Year 2015, Volume 66, Issue 8,





STELIANA CRISTEA, ION BOLOCAN, DORIN BOMBOS, MIHAELA BOMBOS, GABRIEL VASILIEVICI, TRAIAN JUGANARU, ROXANA CHIVU, CASEN PANAITESCU
Hydrogenolysis of Sunflower Oil over Co-Mo Catalyst

Abstract:

Co-Mo/g-Al2O3 catalyst was prepared by successive impregnation, the precursors of the two metal being cobalt nitrate and ammonium molybdate respectively. Acid strength distribution of the catalyst was determined by thermodesorption of diethyl amine in the temperature range 50-650°C. The main textural properties of Co-Mo/ ă-alumina catalyst, respectively the surface area, pore volume and size distribution of pores were determined by the BET method. Hydrogenolysis of sunflower oil to hydrocarbon fuel was performed on a fixed bed catalytic reactor, at a pressure of 20 - 50 atm, with volume hourly space velocities of sunflower oil (WHSV) of 0.1 - 0.3 h-1 and molar ratio hydrogen/ sunflower oil of 10/1. The temperature varied in the range 375- 4250C. The major compounds identified were C16-C18 hydrocarbons and straight and branched C£ 17 hydrocarbons. Sunflower oil conversion was 100% and the yield values in hydrogenolysed product has changed with temperature, pressure and volume hourly space velocity. Keywords: catalyst, hydrogenolysis, support acidity, sunflower oil, hydrocarbons


Issue: 2015, Volume 66, Issue 8
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