Development of Ag based catalysts for in the oxidative dehydrogenation of allyl alcohol
Résumé
New processes of production of acrolein based upon new starting materials are studied all over the world. With that respect catalysts have recently been developed for conversion of glycerol to acrolein. However processes based upon such catalysts are facing two major problems, their deactivation with time on stream and the capping of selectivity below 80%. Hence, novel routes to produce acrolein may be developed. Among them one would consist converting allyl alcohol produced in a first step by fermentation or other processes. In this work, we have developed new Ag based catalysts more active than the existing ones but slightly less selective. The catalysts have been characterized and their catalytic properties tentatively related to their chemical and textural properties. The study demonstrated that a better control of the texture of the catalyst could be obtained by varying the support that could lead to potentially attractive way to optimize the catalysts.