US 11,731,097 B2
Catalyst particle shape
Moritz Bo Belstrup, Taastrup (DK); Peter Rahbek, Taastrup (DK); and Martin Østberg, Tune (DK)
Assigned to HALDOR TOPSØE A/S, Kgs. Lyngby (DK)
Appl. No. 17/292,125
Filed by HALDOR TOPSØE A/S, Kgs. Lyngby (DK)
PCT Filed Nov. 19, 2019, PCT No. PCT/EP2019/081780
§ 371(c)(1), (2) Date May 7, 2021,
PCT Pub. No. WO2020/120078, PCT Pub. Date Jun. 18, 2020.
Claims priority of application No. PA 2018 00993 (DK), filed on Dec. 12, 2018.
Prior Publication US 2022/0032253 A1, Feb. 3, 2022
Int. Cl. B01J 8/06 (2006.01); B01J 19/30 (2006.01); B01J 35/02 (2006.01)
CPC B01J 8/062 (2013.01) [B01J 8/067 (2013.01); B01J 19/30 (2013.01); B01J 35/026 (2013.01); B01J 2219/3023 (2013.01); B01J 2219/30211 (2013.01); B01J 2219/30223 (2013.01); B01J 2219/30475 (2013.01); B01J 2219/32425 (2013.01); B01J 2219/32483 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A catalytic system comprising:
a. a tubular reactor having a cylindrical form around an axis A-A; the internal surface of said tubular reactor having an internal diameter D and an internal radius of curvature R, defined in a plane perpendicular to the axis A-A;
b. at least one catalyst particle located in said tubular reactor, wherein the catalyst particle has a three-dimensional form with a primary length axis L, wherein each catalyst particle comprises:
a first end-face and a second end-face being arranged perpendicular to said primary axis L at least in the region in which they meet said primary axis L, and
first and second sidewalls extending between the first and second end-faces, each of said sidewalls having a curved profile in a cross-section perpendicular to the primary axis L, wherein said first and second sidewalls each independently have an external radius of curvature R1, R2 in said plane being 0.4-0.99 times the internal radius of curvature R of the tubular reactor,
and wherein the maximum width D1 of the catalyst particle, measured in a plane defined perpendicular to the primary axis L, is less than 0.25 times the internal diameter D of the tubular reactor,
and wherein 2×R1 is greater than D1; and 2×R2 is greater than D1.