How changes in Cu-SSZ-13 catalytic oxidation activity via mild hydrothermal aging influence sulfur poisoning extents

• Published in: Catalysis science & technology Vol. 12; no. 22; pp. 6891 - 6902
• Main Authors: Chen, Yu-Ren, Wei, Lai, Kumar, Ashok, Wang, Di, Epling, William S.
• Format: Journal Article
• Language: English
• Published: Cambridge Royal Society of Chemistry 14.11.2022
• Subjects: Catalysts; Catalytic oxidation; Deactivation; Diesel engines; Low temperature; Oxidation; Poisoning; Pretreatment; Sulfur; Sulfur dioxide; Sulfur trioxide

Cu-SSZ-13 is widely used as a NO x reduction catalyst in diesel engine after-treatment systems. However, sulfur, a common although trace component in diesel fuel, can lead to catalyst deactivation. Literature has shown that the relative amounts of Cu sites identified as Z2Cu and ZCuOH under inert co...