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The additives and intermediates analysis on vanadia-based catalyst for NOx and chlorobenzene co-control

Abstract

The influences of additives, WO3 and MoO3, on activities of V2O5/TiO2 for NOx and chlorobenzene (CB) removal were investigated. Mo/VTi catalyst exhibited higher selective catalytic reduction of NOx and CB oxidation activities than that of the W/VTi catalyst. These can be due to the higher reactivity of Mo containing catalyst and narrower band gap of Mo d-orbitals. When NO and NH3 were both presented in the flue gas, the CB oxidation activity of Mo/VTi showed a significant decline at relatively low temperature due to the competitive adsorption of hydrocarbon species. Aniline was observed above 550 °C only on the Mo/VTi, which was generated through CB nitration with NO2 and further amination with NH3 at high temperature. The online TG-IR-MS results showed that CCl4 and C2Cl4 acted as the main species accumulated on the used catalyst surface with the elevated temperatures.

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Publication details

The article was received on 30 Oct 2019, accepted on 27 Nov 2019 and first published on 28 Nov 2019


Article type: Communication
DOI: 10.1039/C9CY02188D
Catal. Sci. Technol., 2019, Accepted Manuscript

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    The additives and intermediates analysis on vanadia-based catalyst for NOx and chlorobenzene co-control

    X. Huang, Z. Liu, D. Wang, P. Yue and J. Li, Catal. Sci. Technol., 2019, Accepted Manuscript , DOI: 10.1039/C9CY02188D

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