Effect of formaldehyde on selective catalytic reduction of nitrogen oxides by ammonia on V2O5-WO3/TiO2 catalysts

Anh Binh Ngo

doi:10.18453/rosdok_id00003764

Anh Binh Ngo

Effect of formaldehyde on selective catalytic reduction of nitrogen oxides by ammonia on V2O5-WO3/TiO2 catalysts

Universität Rostock, 2021

https://doi.org/10.18453/rosdok_id00003764

Abstract: This dissertation studies on the effect of HCHO - a side product from the uncompleted combustion of fuel to the selective catalytic reduction of NOx by ammonia. HCHO prefers to react with NH3 to form HCN as the main product, leads to the decrease of NOx conversion and N2 selectivity. In situ FTIR reveals that the high surface acidity of catalyst will create a large enough of NH3 adsorbents for the reaction of HCHO to form HCONH2. In addition, in situ EPR experiments indicate that the high redox property of catalyst also facilitates the rate of HCONH2 formation.

Dissertation Freier Zugang

Titel:

Effect of formaldehyde on selective catalytic reduction of nitrogen oxides by ammonia on V2O5-WO3/TiO2 catalysts

Beteiligte Personen:

Anh Binh Ngo[VerfasserIn]
	1234175401
Angelika Brückner[AkademischeR BetreuerIn]
	14344526X
	Department of Catalytic In-situ Studies, Leibniz Institute for Catalysis, University of Rostock, Germany
Sven Kureti[AkademischeR BetreuerIn]
	0000-0002-7524-841X
	122922433
	Institute for Energy Process Engineering and Chemical Engineering, Technical University of Bergakademie Freiberg

Beteiligte Körperschaften:

Universität Rostock[Grad-verleihende Institution]
	38329-6
Universität Rostock, Mathematisch-Naturwissenschaftliche Fakultät[Grad-verleihende Institution]
	2147083-2

Zusammenfassung:

This dissertation studies on the effect of HCHO - a side product from the uncompleted combustion of fuel to the selective catalytic reduction of NOx by ammonia. HCHO prefers to react with NH3 to form HCN as the main product, leads to the decrease of NOx conversion and N2 selectivity. In situ FTIR reveals that the high surface acidity of catalyst will create a large enough of NH3 adsorbents for the reaction of HCHO to form HCONH2. In addition, in situ EPR experiments indicate that the high redox property of catalyst also facilitates the rate of HCONH2 formation. [Englisch]

Dokumenttyp:

Dissertation

Einrichtung:

Mathematisch-Naturwissenschaftliche Fakultät

Sprache:

Englisch

Sachgruppe der DNB:

500 Naturwissenschaften

540 Chemie

660 Technische Chemie

Veröffentlichung /
Entstehung:

Rostock