Ammonia activation over catalysts for the selective catalytic reduction of NOx and the selective catalytic oxidation of NH3. An FT-IR study

1996 ◽  
Vol 28 (4) ◽  
pp. 373-380 ◽  
Author(s):  
G. Ramis ◽  
Li Yi ◽  
G. Busca
Keyword(s):  
Selective Catalytic Reduction ◽  
Catalytic Oxidation ◽  
Catalytic Reduction ◽  
Selective Catalytic Oxidation ◽  
Ft Ir ◽  
Reduction Of Nox ◽  
Ir Study

FT-IR operando study on selective catalytic reduction of NOx species by ammonia: A comparison between zeolitic and GAPON compounds

2006 ◽  
Vol 113 (1-2) ◽  
pp. 87-93 ◽  
Author(s):  
F. Romero Sarria ◽  
O. Marie ◽  
P. Bazin ◽  
J. Saussey ◽  
J. Lesage ◽  
...  
Keyword(s):  
Selective Catalytic Reduction ◽  
Catalytic Reduction ◽  
Ft Ir ◽  
Reduction Of Nox

scholarly journals Performance of Mn-Fe-Ce/GO-x for Catalytic Oxidation of Hg0 and Selective Catalytic Reduction of NOx in the Same Temperature Range

Catalysts ◽  
2018 ◽  
Vol 8 (9) ◽  
pp. 399 ◽  
Author(s):  
Donghai An ◽  
Xiaoyang Zhang ◽  
Xingxing Cheng ◽  
Yong Dong
Keyword(s):  
Selective Catalytic Reduction ◽  
Catalytic Oxidation ◽  
Flue Gas ◽  
Photoelectron Spectroscopy ◽  
Catalytic Reduction ◽  
Good Mechanical Property ◽  
Active Components ◽  
Thermal Methods ◽  
Temperature Range ◽  
Reduction Of Nox

A series of composites of Mn-Fe-Ce/GO-x have been synthesized by a hydrothermal method. Their performance in simultaneously performing the catalytic oxidation of Hg0 and the selective catalytic reduction of nitrogen oxides (NOx) in the same temperature range were investigated. In order to investigate the physicochemical properties and surface reaction, basic tests, including Brunauer-Emmett-Teller (BET), XRD, scanning electron microscope (SEM) and X-ray photoelectron spectroscopy (XPS) were selected. The results indicate that the active components deposited on graphene play an important role in the removal of mercury and NOx, with different valences. Especially, the catalyst of Mn-Fe-Ce/GO-20% possesses an excellent efficiency in the temperature range of 170 to 250 °C. Graphene has a huge specific surface area and good mechanical property; thus, the active components of the Mn-Fe-Ce catalyst can be highly dispersed on the surface of graphene oxide. In addition, the effects of O2, H2O, NO and SO2 on the removal efficiency of Hg0 were examined in flue gas. Furthermore, the regeneration experiments conducted by thermal methods proved to be promising methods.

scholarly journals Methane-to-methanol conversion over zeolite Cu-SSZ-13, and its comparison with the selective catalytic reduction of NOx with NH3

2018 ◽  
Vol 8 (4) ◽  
pp. 1028-1038 ◽  
Author(s):  
Ramon Oord ◽  
Joel E. Schmidt ◽  
Bert M. Weckhuysen
Keyword(s):  
Selective Catalytic Reduction ◽  
Active Site ◽  
Catalytic Reduction ◽  
Methanol Conversion ◽  
Nuclear Site ◽  
Ft Ir ◽  
Reduction Of Nox

Using in situ FT-IR and operando UV-vis-NIR DRS, performed on a series of different Cu–ion-exchanged SSZ-13 zeolites, both a mono-nuclear site or a dimeric copper active site are consistent for methane-to-methanol activation.

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