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AssigneesTotal Raffinage Marketing, Ifp Energies Nouvelles
InventorsKarin Marchand, Bertrand Guichard, Mathieu Digne, Michael Rebeilleau, Sylvie Lopez, Antoine Hugon, Audrey Bonduelle
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A catalyst usable in hydrotreatment processes: an alumina-based amorphous support, phosphorus, a C1-C4 dialkyl succinate, acetic acid and a hydro-dehydrogenizing function of at least one group VIII element and at least one group VIB element, preferably made up of cobalt and molybdenum, a catalyst whose Raman spectrum comprises the most intense bands characteristic of the Keggin heteropolyanions (974 and/or 990 cm−1), C1-C4 dialkyl succinate and acetic acid (896 cm−1). Preferably, the dialkyl succinate concerned is dimethyl succinate and its main band is at 853 cm−1.
A catalyst comprising an alumina-based amorphous support, phosphorus, at least one C1-C4 dialkyl succinate, acetic acid and a hydro-dehydrogenizing function comprising at least one group VIII element and at least one group VIB element, said catalyst having a Raman spectrum which comprises the main bands at 990 and/or 974 cm−1 characteristic of at least one Keggin heteropolyanion, the bands characteristic of said succinate and the main band at 896 cm−1 characteristic of acetic acid.
Dependencies are inferred from the claim text.