US 12,453,948 B2
Particle processing
Victor Francia, London (GB); and Marc-Olivier Coppens, London (GB)
Assigned to UCL BUSINESS LTD, London (GB)
Appl. No. 18/248,609
Filed by UCL BUSINESS LTD, London (GB)
PCT Filed Oct. 11, 2021, PCT No. PCT/GB2021/052620
§ 371(c)(1), (2) Date Apr. 11, 2023,
PCT Pub. No. WO2022/079420, PCT Pub. Date Apr. 21, 2022.
Claims priority of application No. 2016253 (GB), filed on Oct. 13, 2020.
Prior Publication US 2023/0372890 A1, Nov. 23, 2023
Int. Cl. B01J 8/22 (2006.01); B01J 2/00 (2006.01)
CPC B01J 8/22 (2013.01) [B01J 2/006 (2013.01); B01J 2208/00566 (2013.01); B01J 2208/0084 (2013.01); B01J 2208/00938 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A method of operating a gas-solid fluidized bed, comprising:
flowing a pulsating gas flow upwards through a bed of solid particles from a distributor to cause a dynamically structured bubble flow; and
processing particles using the fluidized bed,
wherein processing particles using the fluidized bed comprises setting up a compartmentalized flow regime, in which a plurality of mixing compartments are defined between adjacent bubbles arranged in a triangular tessellation, and particles are mixed by a combination of i) recirculating axial mixing within the compartment with a residence time between 0.1 and 200 s and ii) the controlled advection of particles between compartments at a time averaged rate between 0.01-250 litres solid particles/m2 s.