Ifp Energies Nouvelles

Thibault Alphazan

Audrey Bonduelle

Christophe Coperet

Pascal Raybaud

Audrey Bonduelle-Skrzypczak

Christele Legens

Christophe COPÉRET

The invention concerns a process for the preparation of a catalyst for carrying out hydrogenation reactions in hydrotreatment and hydrocracking processes. Said catalyst is prepared from at least one mononuclear precursor based on molybdenum (Mo), in its monomeric or dimeric form, having at least one Mo&#x2550;O or Mo&#x2014;OR bond or at least one Mo&#x2550;S or Mo&#x2014;SR bond where [R=CHwhere x&#x2267;1 and (x&#x2212;1)&#x2266;y&#x2266;(2x+1) or R=Si(OR')or R=Si(R&#x2032;)where R&#x2032;=CHwhere x&#x2032;&#x2267;1 and (x&#x2032;&#x2212;1)&#x2266;y&#x2032;&#x2266;(2x&#x2032;+1)], and optionally from at least one promoter element from group VIII. Said precursors are deposited onto an oxide support which is suitable for the process in which it is used, said catalyst being dried at a temperature of less than 200&#xb0; C. then advantageously being sulphurized before being deployed in said process.

Process for the preparation of a catalyst based on molybdenum for use in hydrotreatment or in hydrocracking

The invention concerns a process for the preparation of a catalyst based on tungsten intended for hydrotreatment or hydrocracking processes. The invention concerns a process for the preparation of a catalyst for carrying out hydrogenation reactions in hydrotreatment and hydrocracking processes. Said catalyst is prepared from at least one mononuclear precursor compound based on tungsten (W), in its monomeric or dimeric form, having at least one W&#x2550;O or W&#x2014;OR bond or at least one W&#x2550;S or W&#x2014;SR bond where [R&#x2550;CHwhere x&#x2267;1 and (x&#x2212;1)&#x2266;y&#x2266;(2x+1) or R&#x2550;Si(OR')or R&#x2550;Si(R&#x2032;)where R&#x2032;&#x2550;CHwhere x&#x2032;&#x2267;1 and (x&#x2032;&#x2212;1)&#x2266;y&#x2032;&#x2266;(2x&#x2032;+1)], optionally at least one Mo precursor and optionally at least one promoter element from group VIII. Said precursors are deposited onto an oxide support which is suitable for the process in which it is used, said catalyst advantageously being sulphurized before being deployed in said process.

Process for the preparation of a catalyst based on tungsten for use in hydrotreatment or in hydrocracking

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Mions, France

Thibault Alphazan