	US 11,905,471 B2
	Selective catalyst for hydrogenolysis of ethyl-aromatics by conserving methyl-aromatics
Vincent Coupard, Rueil-Malmaison (FR); Anne-Claire Dubreuil, Rueil-Malmaison (FR); Alexandre Jouve, Rueil-Malmaison (FR); and Denis Uzio, Rueil-Malmaison (FR)
Assigned to IFP ENERGIES NOUVELLES, Rueil-Malmaison (FR)
Appl. No. 17/414,882
Filed by IFP Energies nouvelles, Rueil-Malmaison (FR)
PCT Filed Dec. 13, 2019, PCT No. PCT/EP2019/085011 § 371(c)(1), (2) Date Jun. 16, 2021, PCT Pub. No. WO2020/126870, PCT Pub. Date Jun. 25, 2020.
Claims priority of application No. 1873446 (FR), filed on Dec. 19, 2018.
Prior Publication US 2022/0056350 A1, Feb. 24, 2022
Int. Cl. C10G 49/04 (2006.01); B01J 23/883 (2006.01); B01J 35/10 (2006.01); B01J 37/02 (2006.01); B01J 37/08 (2006.01)

CPC C10G 49/04 (2013.01) [B01J 23/883 (2013.01); B01J 35/1009 (2013.01); B01J 35/1014 (2013.01); B01J 35/1019 (2013.01); B01J 35/1038 (2013.01); B01J 35/1042 (2013.01); B01J 35/1047 (2013.01); B01J 37/0205 (2013.01); B01J 37/088 (2013.01)]

5 Claims

1. A hydrogenolysis process wherein a hydrocarbon-based feedstock comprising aromatic compounds having at least 8 carbon atoms is treated by means of an introduction of hydrogen and in the presence of a catalyst, to convert C2+ alkyl chains of said aromatic compounds into methyl groups and to produce a hydrogenolysis effluent enriched in methyl-substituted aromatic compounds,

wherein the hydrogenolysis process is carried out with the following operating conditions:

temperature of between 300° C. and 550° C.;

pressure of between 0.1 and 3 MPa;

H₂/HC molar ratio of between 1 and 10;

WWH of between 0.1 and 50 h⁻¹, and

wherein the catalyst comprises a support comprising at least one refractory oxide, and an active phase comprising nickel and molybdenum, wherein:

the nickel content is between 0.1 and 25% by weight relative to the total weight of the catalyst;

the molybdenum content is between 0.1 and 20% by weight relative to the total weight of the catalyst; and

the catalyst comprises a molar ratio of molybdenum to nickel (Mo/Ni) of between 0.2 and 0.9.