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Revista de Chimie (Rev. Chim.), Year 2016, Volume 67, Issue 12,





CRISTIANA RIZEA, MIHAELA BOMBOS, GABRIEL VASILIEVICI, DORIN BOMBOS, ION BOLOCAN
Influence of Cd on the Activity of Copper Chromite Catalyst
in the Hydrogenation of Methyl Oleate

Abstract:

The hydrogenation of methyl oleate was conducted on catalysts based on barium-copper chromite /g- Al2O3 and respectively barium-copper chromite / g - Al2O3 doped with Cd. The distribution of the acid strength of the prepared catalysts was determined by thermic desorption of diethyl amine in the temperature range from 20 to 600°C. Experiments were carried out on a laboratory echipament using a fixed bed catalytic reactor at a temperature of 160-250°C, pressure of 80-100 atm with a methyl oleate volume flow rate (VHSV) of 0.2-2h -1and molar ratio hydrogen/ methyl oleate of 5-10/1. The main compounds identified were saturated fatty alcohols and saturated hydrocarbons. Ba-Cu chromite catalyst activity was superior to that of Cd-Ba-Cu chromite, probably due to an optimal distribution of the acid strength of the first catalyst. Keywords: catalyst, hydrogenation, acidity, methyl oleate, selectivity


Issue: 2016, Volume 67, Issue 12
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