2-Butyne-1,4-diol hydrogenation in supercritical CO2: Effect of hydrogen concentration

Hydrogenation experiments of 2-butyne-1,4-diol, catalysed by carbon-supported palladium, have been performed in a batch reactor using high pressurised carbon dioxide as reaction solvent. Carbon dioxide pressure was kept to a constant value of 18 MPa. The influence of the hydrogen pressure, varying from 0.2 to 0.8 MPa, on the conversion rate was investigated. Under these conditions, the reactive media is monophasic. Finally, we fitted our experimental results with a simple reaction kinetic model.

Graphical abstractHydrogenation experiments of 2-butyne-1,4-diol, catalysed by carbon-supported palladium, have been performed in a batch reactor using high pressurised carbon dioxide as reaction solvent. Under these conditions, the reactive media is monophasic. The influence of the hydrogen pressure on the conversion rate was investigated. Experimental results were fitted with a simple reaction kinetic model.Figure optionsDownload full-size imageDownload as PowerPoint slide