US 12,447,453 B2
Rotatable retaining device for tubular reactors
Robert Miles Baker, London (GB); Henry Arthur Claxton, London (GB); Simon Graham, London (GB); and Dean Graham Shaw, London (GB)
Assigned to Johnson Matthey Davy Technologies Limited, London (GB)
Appl. No. 18/040,100
Filed by JOHNSON MATTHEY DAVY TECHNOLOGIES LIMITED, London (GB)
PCT Filed Sep. 24, 2021, PCT No. PCT/GB2021/052490
§ 371(c)(1), (2) Date Jan. 31, 2023,
PCT Pub. No. WO2022/064211, PCT Pub. Date Mar. 31, 2022.
Claims priority of application No. 2015189 (GB), filed on Sep. 25, 2020.
Prior Publication US 2023/0285917 A1, Sep. 14, 2023
Int. Cl. B01J 4/00 (2006.01); B01J 8/00 (2006.01); B01J 8/06 (2006.01)
CPC B01J 8/0045 (2013.01) [B01J 8/0035 (2013.01); B01J 8/06 (2013.01); B01J 2208/00769 (2013.01); B01J 2208/00884 (2013.01); B01J 2208/06 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A reactor tube for a tubular reactor and a retaining device associated with the reactor tube;
the reactor tube in the form of an elongate tube defining a bore for receiving in use a catalyst and having an outlet at one end of the bore for discharging the catalyst out of the bore;
the retaining device being configured to be rotatable between a first position and a second position and rotatable about an axis that is parallel to, and non-coincident with, a longitudinal axis of the elongate tube;
wherein in the first position the retaining device at least partially obstructs the outlet for retaining the catalyst within the bore; and
in the second position the outlet is unobstructed sufficiently for permitting discharge of the catalyst out of the outlet.