Enhanced Low Temperature NO Reduction Performance via MnOx-Fe2O3/Vermiculite Monolithic Honeycomb Catalysts
نویسندگان
چکیده
منابع مشابه
COMBINED MERCURY REMOVAL AND LOW TEMPERATURE NH3-SCR OF NO WITH MnOx/TiO2 SORBENTS/CATALYSTS
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 کاملHighly selective catalytic reduction of NO via SO2/H2O-tolerant spinel catalysts at low temperature
Selective catalytic reduction of NO X by hydrogen (H2-SCR) in the presence of oxygen has been investigated over the NiCo2O4 and Pd-doped NiCo2O4 catalysts under varying conditions. The catalysts were prepared by a sol-gel method in the presence of oxygen within 50-350 °C and were characterized using XRD, BET, EDS, XPS, Raman, H2-TPR, and NH3-TPD analysis. The results demonstrated that the doped...
متن کاملThe CeOX and MnOX Nanocrystals Supported on TiO2–Graphene Oxide Catalysts and Their Selective Catalytic Reduction Properties at Low Temperature
A series of 9%CeOx–MnOx/TiO2–GO nanocomposites with different molar ratios of Ce/Mn were synthesized by the sol-gel and ultrasonic impregnation methods and characterized by field emission scanning electron microscope (FESEM), high resolution transmission electron microscopy (HRTEM), N2 adsorption (BET) analysis, X-ray photoelectron spectroscopy (XPS), and Fourier transform infrared spectroscopy...
متن کاملCatalytic Oxidation of NO over MnOx-CeO₂ and MnOx-TiO₂ Catalysts.
A series of MnOx-CeO₂ and MnOx-TiO₂ catalysts were prepared by a homogeneous precipitation method and their catalytic activities for the NO oxidation in the absence or presence of SO₂ were evaluated. Results show that the optimal molar ratio of Mn/Ce and Mn/Ti are 0.7 and 0.5, respectively. The MnOx-CeO₂ catalyst exhibits higher catalytic activity and better resistance to SO₂ poisoning than the...
متن کاملEnhanced effect of water vapor on complete oxidation of formaldehyde in air with ozone over MnOx catalysts at room temperature.
At room temperature, the enhanced effect of water vapor on ozone catalytic oxidation (OZCO) of formaldehyde to CO2 over MnOx catalysts and the reaction stability was reported. In a dry air stream, only below 20% of formaldehyde could be oxidized into CO2 by O3. In humid air streams (RH≥55%), ∼100% of formaldehyde were oxidized into CO2 by O3 and the reaction stability was significantly enhanced...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Catalysts
سال: 2018
ISSN: 2073-4344
DOI: 10.3390/catal8030100