US 11,857,950 B2
Hydrothermally and thermally stable catalytic materials based on theta-alumina
Konstantin Khivantsev, Richland, WA (US); Libor Kovarik, West Richland, WA (US); Janos Szanyi, Richland, WA (US); Yong Wang, Richland, WA (US); Ja-Hun Kwak, Richland, WA (US); and Nicholas R. Jaegers, Richmond, CA (US)
Assigned to BATTELLE MEMORIAL INSTITUTE, Richland, WA (US)
Filed by BATTELLE MEMORIAL INSTITUTE, Richland, WA (US)
Filed on Nov. 17, 2021, as Appl. No. 17/528,849.
Claims priority of provisional application 63/114,559, filed on Nov. 17, 2020.
Prior Publication US 2022/0152585 A1, May 19, 2022
Int. Cl. B01J 21/04 (2006.01); B01J 23/44 (2006.01); B01J 23/46 (2006.01); B01J 35/06 (2006.01); B01J 35/10 (2006.01); B01J 37/02 (2006.01); B01J 37/08 (2006.01)
CPC B01J 21/04 (2013.01) [B01J 23/44 (2013.01); B01J 23/464 (2013.01); B01J 35/06 (2013.01); B01J 35/1014 (2013.01); B01J 37/0207 (2013.01); B01J 37/088 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A method for making a catalyst, the method comprising the step of:
heating a boehmite or gamma-alumina material having a rod-like morphology to a temperature of at least 1000° C. to create a pure theta-alumina material, as defined by X-ray diffraction, having a surface area more than 20 m2/g that can withstand hydrothermal aging up to 1150° C. without significant loss of surface area.