Kinetic modelling for dehydrogenation of cyclohexanol on Sr(x)La(2-x)CuO4-y (x = 0 & 0.2) catalyst systems

The catalytic dehydrogenation of cyclohexanol to cyclohexanone is an indust rially important reaction. The catalysts La2CuO4 and strontium substituted lanthanum copper oxide Sr-0.2, La-1.8, CuO3.9 have been evaluated for their catalytic activities. They found to yield cyclohexanone in die temperature range of 573-613K beyond which dehydration is favoured. The results obtain ed by the flow reactor technique were fitted in different models (Langmuir- Hinshelwood mechanism) to find out the rate determining step using a non-li near least square fitting computer programme. The most suitable model was f ound to be a Langmuir Hinshelwood model involving surface reaction-dual sit e with negligible adsorption of cyclohexanone and hydrogen.