US 11,911,728 B2
Reactor for reducing nitrogen oxides
Wassim Klink, Houston, TX (US); Guido Seng, The Woodlands, TX (US); Wenzhong Zhang, Houston, TX (US); Andreas Klemt, Leuna (DE); and Paul Benjerman Himelfarb, Katy, TX (US)
Assigned to SHELL USA, INC., Houston, TX (US)
Filed by SHELL OIL COMPANY, Houston, TX (US)
Filed on Nov. 22, 2021, as Appl. No. 17/466,206.
Application 17/466,206 is a continuation of application No. 16/064,200, granted, now 11,179,675, previously published as PCT/US2016/067655, filed on Dec. 20, 2016.
Claims priority of provisional application 62/270,853, filed on Dec. 22, 2015.
Prior Publication US 2022/0111334 A1, Apr. 14, 2022
Int. Cl. B01D 53/86 (2006.01); B01D 53/94 (2006.01); B01J 21/16 (2006.01); B01J 23/22 (2006.01); B01J 23/28 (2006.01); B01J 23/30 (2006.01); B01J 35/04 (2006.01); F01N 3/28 (2006.01)
CPC B01D 53/8631 (2013.01) [B01D 53/8625 (2013.01); B01D 53/9409 (2013.01); B01D 53/9431 (2013.01); B01J 21/16 (2013.01); B01J 23/22 (2013.01); B01J 23/28 (2013.01); B01J 23/30 (2013.01); B01J 35/04 (2013.01); F01N 3/2828 (2013.01); B01D 2255/90 (2013.01); B01D 2255/9155 (2013.01); B01D 2255/9205 (2013.01); B01D 2257/402 (2013.01); B01D 2257/404 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A catalyst for reducing NOx in an exhaust gas comprising:
a ceramic or metallic foam support; and
one or more NOx reduction catalysts disposed on the ceramic or metallic foam support, wherein the one or more NOx reduction catalysts comprises a carrier material and one or more metal compounds disposed on the carrier material, wherein the NOx reduction catalyst has a bimodal pore distribution with more than 90% of a pore volume present in pores having a diameter of at most 100 nanometers (nm), and wherein the pore volume is present in pores having a diameter between approximately 1 nm and approximately 104 nm.