It was observed that, at high temperature, kinetics favored oxygenate formation.
All of the catalysts tested, except H2S-treated Os, exhibited CO insertion activity in the CO/H2/C2H4 reaction leading to C3 oxygenate formation.
In contrast, those samples with low reducibility are selective for the oxidation of ethane including ODH to ethylene and oxygenate formation.
At elevated pressure tungsten catalysts showed good activity and improved C2-C4 selecomparedcompared with molybdenum catalysts, mainly due to reduced oxygenate formation.
The reactivity of CO was inhibited by the presence of carbon on the surface of cobalt which promoted oxygenate formation through a CO insertion mechanism.
The solvent effects for Co/SiO2 and Co/A.C. catalysts in the hydroformylation reaction of 1-hexene were investigated and alcoholic solvents promoted the oxygenate formation significantly.
An in situ diffuse reflectance FT-IR technique was employed to investigate the active surface species and the reaction mechanism of the oxygenate formation in the vapor phase hydroformylation of ethene on Co/SiO2 promoted with various noble metals such as Ir, Rh, Pt, Re, Ru, and Pd.
