US 12,247,171 B2
Method for capturing organometallic impurities in the presence of a capture mass on a mesoporous-macroporous support
Philibert Leflaive, Rueil-Malmaison (FR); Etienne Girard, Rueil-Malmaison (FR); and Antoine Fecant, Rueil-Malmaison (FR)
Assigned to IFP Energies nouvelles, Rueil-Malmaison (FR)
Appl. No. 18/037,137
Filed by IFP Energies nouvelles, Rueil-Malmaison (FR)
PCT Filed Nov. 18, 2021, PCT No. PCT/EP2021/082068
§ 371(c)(1), (2) Date May 16, 2023,
PCT Pub. No. WO2022/112080, PCT Pub. Date Jun. 2, 2022.
Claims priority of application No. 2012320 (FR), filed on Nov. 27, 2020.
Prior Publication US 2023/0416617 A1, Dec. 28, 2023
Int. Cl. C10G 25/00 (2006.01); B01J 20/02 (2006.01); B01J 20/08 (2006.01); B01J 20/28 (2006.01); B01J 20/32 (2006.01)
CPC C10G 25/003 (2013.01) [B01J 20/0225 (2013.01); B01J 20/08 (2013.01); B01J 20/28061 (2013.01); B01J 20/28073 (2013.01); B01J 20/28092 (2013.01); B01J 20/3204 (2013.01); B01J 20/3236 (2013.01); B01J 20/3293 (2013.01); C10G 2300/202 (2013.01); C10G 2300/205 (2013.01); C10G 2400/02 (2013.01)] 19 Claims
 
1. A process for capturing organometallic impurities in a gasoline-type hydrocarbon feedstock containing sulfur compounds and olefins, comprising:
bringing a capture mass into contact with a feedstock to be treated and a flow of hydrogen at a temperature between 200 and 400° C., a pressure of between 0.2 and 5 MPa and a ratio of the hydrogen flow rate to the hydrocarbon feedstock flow rate of between 50 and 800 Nm3/m3,
said capture mass comprising an active phase based on nickel, and a support of mesoporous and macroporous alumina comprising a bimodal distribution of mesopores, and in which:
the volume of the mesopores with a diameter greater than or equal to 2 nm and less than 18 nm corresponds to between 10 and 30% by volume of the total pore volume of said support;
the volume of the mesopores with a diameter greater than or equal to 18 nm and less than 50 nm corresponds to between 30 and 50% by volume of the total pore volume of said support;
the volume of the macropores with a diameter greater than or equal to 50 nm and less than 8000 nm corresponds to between 30 and 50% by volume of the total pore volume of said support,
wherein said support is in the form of beads with a diameter of between 2 and 4 mm and said support is obtained according to the following method:
s1) dehydration of an aluminum hydroxide or an aluminum oxyhydroxide at a temperature of between 400° C. and 1200° C., for a time of between 0.1 second and 5 seconds, to obtain an alumina powder;
s2) shaping of said alumina powder obtained in s1) in the form of beads;
s3) heat treatment of the alumina beads obtained in s2) at a temperature greater than or equal to 200° C.;
s4) hydrothermal treatment of the alumina beads obtained at the end of s3) by impregnation with water or an aqueous solution, then residence in an autoclave at a temperature between 100° C. and 300° C.;
s5) calcining of the alumina beads obtained at the end of s4) at a temperature between 500° C. and 820° C.