The catalytic activity of ethanol gasification in a continuous flow system using locally prepared Mo-O-Co co-oxide system catalysts calcined at 450°C

• Publish Date: 18 - March - 2025

Research Abstract:

In this research, the catalytic activity of the gas-phase conversion of ethanol was studied using a continuous flow system and locally prepared catalysts based on the mixed oxide system Mo-O-Co containing (0-25 wt.% Co2O3), with the aim of producing acetaldehyde and ethylene. The reaction was studied at temperatures ranging from 150oC to 300oC, and it has found that the overall conversion rate gradually increased with temperature. It has found that the conversion reaction using molybdenum oxide and the mixed oxide sample proceeds through both dehydrogenation and dehydration reactions, with dehydrogenation being the predominant reaction. An increase in catalytic activity and a shift in the reaction toward dehydrogenation were observed after the addition of cobalt oxide. The highest overall conversion rate of the reaction reached 97% using catalysts containing 15, 25 wt.% Co2O3, while the highest conversion rate to acetaldehyde was 96% with cobalt oxide, and the highest conversion rate to ethylene was 44.5% with a selectivity 45.88% using the catalyst containing 25wt.% Co2O3. The stability of the catalyst containing 15wt% Co2O3 was tested in the ethanol conversion at 250oC for a continuous period of fifty hours. It was observed that the catalysts performance remained stable with no decrease in conversion or reaction selectivity.

Publishers:

Nojoom Al-Ghanom