Effect of supplementation of nitrate and cesium formiate on properties of CO conversion Cu-Zn-Al catalyst
The effect of nitrate and cesium formiate additions on activity, as well as the crystal structure and surface area of active copper component in the co-precipitated low temperature CO conversion Cu-Zn-Alcatalyst is studied. It is established that 1 % Cs in the form of nitrate or formiate decreases the activity of the catalyst in the formation of methanol in 2,5-3 times. Effect of cesium formiate on the crystal structure and phase composition is expressed less in comparison with nitrate. The Cs addition in the carbonate mass is preferable than in the oxide mass after calcination, as it leads to a greater decrease in the methanol yield and to lesser extent of changes the crystal structure and phase composition of the catalyst.