US 12,263,473 B2
Process for the activation of oxidised catalysts
Michael Bainbridge, Stockton-on-Tees (GB)
Assigned to Johnson Matthey Davy Technologies Limited, London (GB)
Appl. No. 17/272,858
Filed by JOHNSON MATTHEY DAVY TECHNOLOGIES LIMITED, London (GB)
PCT Filed Sep. 6, 2019, PCT No. PCT/GB2019/052485
§ 371(c)(1), (2) Date Mar. 2, 2021,
PCT Pub. No. WO2020/053555, PCT Pub. Date Mar. 19, 2020.
Claims priority of application No. 1814682 (GB), filed on Sep. 10, 2018.
Prior Publication US 2021/0316295 A1, Oct. 14, 2021
Int. Cl. B01J 37/18 (2006.01); B01J 23/86 (2006.01); B01J 35/30 (2024.01); C07C 29/141 (2006.01)
CPC B01J 37/18 (2013.01) [B01J 23/868 (2013.01); B01J 35/392 (2024.01); C07C 29/141 (2013.01)] 31 Claims
 
1. A process for activation of a catalyst comprising:
(a) providing a reactor comprising a solid catalyst which is to be activated by reduction;
(b) supplying a liquid feed stream and a reducing agent to the reactor;
(c) operating the reactor such that the reducing agent causes activation of the catalyst;
(d) recovering a liquid stream and a gas stream from the reactor; and wherein, a peak water concentration in the liquid stream recovered in step (d) is substantially maintained at less than 1.5 wt % by one or more of:
controlling a water concentration of the liquid feed stream supplied in step (b);
controlling a rate of recovery of the liquid stream recovered in step (d); and,
removal of water produced within the reactor.