In situ-DRIFTS Study of the Selective Catalytic Reduction of NO<sub>x</sub> by NH<sub>3</sub> over a Cu-exchanged Small Pore Zeolite

Wang, Di

Tuesday, June 4, 2013

Clements (Galt House Hotel)

Di Wang¹, William Epling¹, Li Zhang¹ and Krishna Kamasamudram², (1)University of Houston, USA, (2)Cummins Inc., USA.

The objective was to investigate the SCR mechanism on Cu-exchanged SAPO-34. The formation of surface nitrates and nitrites is a key step and NH₄NO₃ formed on Lewis acid sites react with NO to produce N₂. Bronsted acid sites act as an NH3 reservoir for SCR at Lewis acid sites.

Extended Abstracts:

Di Wang UH NAM 23 Abstract.pdf (158.6KB) - Extended Abstract

P-Tu-Cle-3 In situ-DRIFTS Study of the Selective Catalytic Reduction of NOx by NH3 over a Cu-exchanged Small Pore Zeolite

P-Tu-Cle-3 In situ-DRIFTS Study of the Selective Catalytic Reduction of NO_x by NH₃ over a Cu-exchanged Small Pore Zeolite