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Effect of CO-SCR by CTAB modified vanadosilicate molecular sieve on low temperature catalytic denitrification
- Source :
- Cailiao gongcheng, Vol 49, Iss 12, Pp 115-122 (2021)
- Publication Year :
- 2021
- Publisher :
- Journal of Materials Engineering, 2021.
-
Abstract
- To improve the NO-CO low-temperature selective catalytic reduction (SCR) denitration rate, finding new effective denitration catalysts has become the focus of the denitration field. A vanadium-substituted molecular sieve AM-6 was synthesized by hydrothermal method, the performance of AM-6 molecular sieve was improved by surfactant-assisted synthesis. The effect of different amounts of CTAB on the morphology, composition and the catalytic reduction performance was studied. These catalysts were characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS). The results show that the addition of CTAB does not introduce other impurity elements. When the ratio of CTAB to V is 1:4, AM-6(1/4CTAB) has more regular surface morphology, better crystalline formability, well-balanced ratio of V5+/V4+, and the denitrification activity reaches 81.54% at 150℃, which is reduced by 50℃ than the temperature at which the denitrification activity of AM-6 reaches 80%.
Details
- Language :
- Chinese
- ISSN :
- 10014381
- Volume :
- 49
- Issue :
- 12
- Database :
- Directory of Open Access Journals
- Journal :
- Cailiao gongcheng
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.6409b0264a8ab006b08c4d6699e3
- Document Type :
- article
- Full Text :
- https://doi.org/10.11868/j.issn.1001-4381.2020.001076