US 12,257,564 B2
Mass for capturing mercaptans which is prepared using molten salts
Antoine Hugon, Rueil-Malmaison (FR); Philibert Leflaive, Rueil-Malmaison (FR); and Antoine Fecant, Rueil-Malmaison (FR)
Assigned to IFP Energies Nouvelles, Rueil-Malmaison (FR)
Appl. No. 17/784,768
Filed by IFP Energies Nouvelles, Rueil-Malmaison (FR)
PCT Filed Dec. 4, 2020, PCT No. PCT/EP2020/084660
§ 371(c)(1), (2) Date Jun. 13, 2022,
PCT Pub. No. WO2021/122059, PCT Pub. Date Jun. 24, 2021.
Claims priority of application No. 1914605 (FR), filed on Dec. 17, 2019.
Prior Publication US 2023/0016535 A1, Jan. 19, 2023
Int. Cl. B01J 20/02 (2006.01); B01J 20/08 (2006.01); B01J 20/28 (2006.01); B01J 20/30 (2006.01); B01J 20/32 (2006.01); C10G 25/00 (2006.01)
CPC B01J 20/0225 (2013.01) [B01J 20/08 (2013.01); B01J 20/28059 (2013.01); B01J 20/28071 (2013.01); B01J 20/3078 (2013.01); B01J 20/3204 (2013.01); B01J 20/3225 (2013.01); B01J 20/3236 (2013.01); C10G 25/003 (2013.01); C10G 2300/202 (2013.01)] 15 Claims
 
1. A process for preparing a scavenging mass comprising an active phase based on at least one group VIII, IB or IIB metal, at least partially in reduced form, and a porous support chosen from aluminas, silica, silica-aluminas, or titanium or magnesium oxides alone or as a mixture with alumina or silica-alumina, said scavenging mass having been obtained by at least the following steps:
a) bringing into contact said porous oxide support with at least one metal salt comprising at least one group VIII, IB or IIB metal for which the melting point of said metal salt is between 2° and 150° C. to form a solid mixture, the mass ratio between said metal salt and said porous oxide support being between 0.1 and 2.5;
a′) bringing the porous support into contact with an organic compound comprising oxygen and/or nitrogen;
b) heating the solid mixture obtained on conclusion of step a) with stirring to a temperature between the melting point of said metal salt and 200° C. to obtain a scavenging mass precursor;
c) optionally drying the solid obtained on conclusion of step b) at a temperature below 200° C. to obtain a dried scavenging mass precursor;
d) optionally calcining the solid obtained on conclusion of step b) or c) at a temperature greater than 200° C. and less than or equal to 1100° C. under an inert atmosphere or under an atmosphere containing oxygen to obtain a calcined scavenging mass precursor;
e) reducing the solid obtained on conclusion of step b), c) or d) to obtain said scavenging mass.