NH3-SCR of NO with novel active, supported vanadium-containing Keggin-type heteropolyacid catalysts
نویسندگان
چکیده
منابع مشابه
Low-temperature SCR of NO with NH3 over USY-supported manganese oxide-based catalysts
A series of catalysts of manganese oxide, manganese–cerium and iron–manganese oxide supported on USY (ultra-stable Y zeolite) were studied for the low-temperature selective catalytic reduction (SCR) of NO with ammonia in the presence of excess oxygen. It was found that MnOx/USY have high activity and high selectivity to N2 in the temperature range 80–180 8C. The addition of iron and cerium oxid...
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MnOx/TiO2 catalysts/sorbents were investigated for flue gas purification via the simultaneous low-temperature NH3-SCR of NO and elemental Hg capture, in the temperature range 25-300 °C. In particular, the effects of the Mn precursor salt (acetate vs. nitrate) and of the TiO2 textural properties (nanotubes vs. random mesopores) on both deNOx and Hg capture efficiencies were addressed. The cataly...
متن کاملLow-temperature SCR of NO with NH3 over noble metal promoted Fe-ZSM-5 catalysts
We have reported previously the excellent performance of Fe-exchanged ZSM-5 for selective catalytic reduction (SCR) of NO with ammonia at high temperatures (300–400 C). In this work, we found that the reaction temperature could be decreased to 200– 300 C when a small amount of noble metal (Pt, Rh, or Pd) was added to the Fe-ZSM-5. The SCR activity follows the order Pt/FeZSM-5 > Rh/Fe-ZSM-5 > Pd...
متن کاملCatalysis science of supported vanadium oxide catalysts.
Supported vanadium oxide catalysts contain a vanadium oxide phase deposited on a high surface area oxide support (e.g., Al2O3, SiO2, TiO2, etc.) and have found extensive applications as oxidation catalysts in the chemical, petroleum and environmental industries. This review of supported vanadium oxide catalysts focuses on the fundamental aspects of this novel class of catalytic materials (molec...
متن کاملKeggin heteropolyacid H3PW12O40 supported on different oxides for catalytic and catalytic photo-assisted propene hydration.
Catalytic and catalytic photo-assisted hydration of propene to form 2-propanol in gas-solid regime at atmospheric pressure and 85 °C were carried out by using a heteropolyacid (POM) supported on different oxides. Binary materials were prepared by impregnation of H3PW12O40 on different commercial and home prepared supports (TiO2, SiO2, WO3, ZrO2, ZnO, Al2O3). Some of the composites were active b...
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ژورنال
عنوان ژورنال: Reaction Chemistry & Engineering
سال: 2020
ISSN: 2058-9883
DOI: 10.1039/d0re00033g