US 12,102,979 B2
Coated composites of Al2O3—CeO2/ZrO2 and a method for their production
Marcos Schoneborn, Hamburg (DE); Noelia Guillen-Hurtado, Alicante (ES); Thomas Harmening, Munster (DE); Dirk Niemeyer, Brunsbuttel (DE); and Diane Howe, St. Michalisdonn (DE)
Filed by Sasol Germany GmbH, Hamburg (DE)
Filed on Aug. 22, 2022, as Appl. No. 17/892,924.
Application 17/892,924 is a division of application No. 15/521,073, granted, now 11,452,989, previously published as PCT/EP2015/002238, filed on Nov. 9, 2015.
Claims priority of application No. 15155488 (EP), filed on Feb. 17, 2015.
Prior Publication US 2023/0271161 A1, Aug. 31, 2023
Int. Cl. B01J 23/00 (2006.01); B01J 21/04 (2006.01); B01J 23/10 (2006.01); B01J 35/30 (2024.01); B01J 35/61 (2024.01); B01J 35/63 (2024.01); B01J 35/64 (2024.01); B01J 35/67 (2024.01); B01J 37/00 (2006.01); B01J 37/02 (2006.01); B01J 37/03 (2006.01); C04B 41/00 (2006.01); C04B 41/50 (2006.01); C04B 41/87 (2006.01); C04B 111/00 (2006.01); F01N 3/10 (2006.01); F01N 3/28 (2006.01); F01N 13/16 (2010.01)
CPC B01J 23/002 (2013.01) [B01J 21/04 (2013.01); B01J 23/10 (2013.01); B01J 35/30 (2024.01); B01J 35/613 (2024.01); B01J 35/615 (2024.01); B01J 35/617 (2024.01); B01J 35/633 (2024.01); B01J 35/635 (2024.01); B01J 35/647 (2024.01); B01J 35/67 (2024.01); B01J 37/0045 (2013.01); B01J 37/0201 (2013.01); B01J 37/0203 (2013.01); B01J 37/0236 (2013.01); B01J 37/035 (2013.01); C04B 41/009 (2013.01); C04B 41/5045 (2013.01); C04B 41/87 (2013.01); F01N 3/2828 (2013.01); F01N 13/16 (2013.01); B01J 35/397 (2024.01); B01J 2523/00 (2013.01); B01J 2523/3712 (2013.01); B01J 2523/48 (2013.01); B01J 2523/74 (2013.01); C04B 2111/0081 (2013.01); C04B 2235/3217 (2013.01); C04B 2235/3224 (2013.01); C04B 2235/44 (2013.01); F01N 3/101 (2013.01); F01N 2510/063 (2013.01); Y02T 10/12 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A coated Al/Ce/Zr composite comprising a calcined Al/Ce/Zr core, the core consisting of two phases, a La stabilized Al2O3 phase and a Ce/Zr/Re2O3 mixed oxide phase, both phases forming a homogeneous mixture, the calcined Al/Ce/Zr core being characterized by having a pore volume above 0.2 ml/g (according to DIN 66133), and a pore size distribution having a maximum between 50 and 200 Å (according to DIN 661333), the core comprising a metal oxide coating wherein the metal oxide coating forms at least 1 to 50 wt, % of the coated Al/Ce/Zr composite and wherein the Al/Ce/Zr core in the coated composite is characterized by an intensity ratio between the characteristic reflection of gamma-alumina at 2θ≈67° and the characteristic reflection of Ce/Zr solid solution at 2θ≈29°, normalized by the Al2O3 weight % of equal to or larger than 1.