Zobrazeno 1 - 10
of 80
pro vyhledávání: '"Neal W. Currier"'
Publikováno v:
Catalysis Today. 320:51-60
The aging impact on oxygen storage capacity (OSC) of three-way catalyst was investigated through experiments and modeling. OSC measurements were conducted on two commercial TWCs (one fresh and one aged) over the temperature window of 100–600 °C. T
Autor:
Rama Krishna Dadi, Rohil Daya, Gunugunuri K. Reddy, Ashok Kumar, Anand Srinivasan, Hongmei An, Michael J. Cunningham, Saurabh Y. Joshi, Neal W. Currier, Aleksey Yezerets
Publikováno v:
Chemical Engineering Journal. 435:134996
Publikováno v:
Applied Catalysis B: Environmental. 236:195-204
An operando experimental method for monitoring relative variations in half-cycle rates of the Cu redox-cycle model of selective-catalytic-reduction (SCR) is demonstrated, along with a kinetic model for predicting the same. Conversion inflections (CI)
Publikováno v:
Chemical Engineering Science. 190:60-67
We identified a new acidic feature in Cu/SSZ-13 catalysts, related to the presence of two distinct desorption peaks in the NH3-TPD profiles, and to the changes in their relative intensity in response to mild hydrothermal aging (Luo et al., 2017). In
Autor:
Neal W. Currier, Aleksey Yezerets, Saurabh Y. Joshi, Ashok Kumar, Jinyong Luo, Krishna Kamasamudram
Publikováno v:
Applied Catalysis B: Environmental. 226:565-574
We demonstrate an unusual behavior of a practically-important reaction of selective catalytic reduction (SCR) of NOx with NH3 over a state-of-the-art Cu-SSZ-13 catalyst. In response to increasing temperature, the rate of SCR reaction increases initia
Autor:
Aleksey Yezerets, Rohil Daya, Rama Krishna Dadi, Saurabh Y. Joshi, Neal W. Currier, Jinyong Luo
Publikováno v:
Applied Catalysis B: Environmental. 290:119825
Autor:
Michael J. Cunningham, Ashok Kumar, Rohil Daya, Aleksey Yezerets, Neal W. Currier, Saurabh Y. Joshi, Rama Krishna Dadi, Hongmei An
Publikováno v:
Applied Catalysis B: Environmental. 283:119655
A state-of-the-art Pt-Pd catalyst was hydrothermally treated at different conditions to investigate hydrothermal stability of NO oxidation. NO oxidation reactor data was collected on catalysts that have been hydrothermally treated at temperatures ran
Autor:
Aleksey Yezerets, Krishna Kamasamudram, Feng Gao, Neal W. Currier, Charles H. F. Peden, Jinyong Luo
Publikováno v:
Journal of Catalysis. 348:291-299
In this work we investigated an unusual acidity feature of a Cu/SSZ-13 catalyst used in selective catalytic reduction of NOx with NH3 (NH3-SCR). In particular, this catalyst showed two distinct NH3 desorption peaks in NH3-TPD measurements, in contras
Publikováno v:
Applied Catalysis B: Environmental. 203:936-945
A dual-site oxygen storage model was developed to predict the dynamic oxygen storage on a Pd/Rh/CeZrOx TWC catalyst. Two oxygen storage sites (surface and sub-surface) were used to describe two distinct regimes of the oxygen storage process. A shrink
Autor:
Aleksey Yezerets, Krishna Kamasamudram, Neal W. Currier, Junhui Li, Jinyong Luo, Di Wang, Ashok Kumar
Publikováno v:
Catalysis Today. 267:3-9
Cu/SSZ-13 has been widely used in industry as catalyst for selective catalytic reduction of NOx with NH3. For real-world application, hydrothermal aging and sulfur poisoning have been considered as two key mechanistic routes responsible for performan