Optimization of an active phase composition in the low-temperature nitric oxide reduction catalyst

• Authors: Marek Kułażyński , Krystyna Bratek , Jerzy Walendziewski
• Languages of publication: EN

Abstracts

EN

In the first research studies series a selection of the quantitative composition of catalyst active phase composition (iron, copper and manganese) deposited on mineral-carbon support was carried out. It was found on the basis of the selection studies series that the best results were attained when copper and manganese were used as catalyst components. The quantitative composition of the denitrogention catalyst was estimated using a statistical method of experiment planning and metals content changed in the range 0.5 - 1.5wt % for both metals. Catalyst activity in nitric oxide reduction by ammonia was determined in the dependence on an active phase composition in the temperature range 100 - 200°C, at GHSV (Gas Hour Space Velocity) 6 000 and 10 000 Nm3/m3h, NO concentration 400 ppm, NH3/NO ratio 1:1. A graphic presentation of the obtained results was made using the UNIPLOT program. The highest activity in nitric oxide reduction by ammonia presented copper - manganese catalysts prepared by the impregnation of mineral-carbon support with active metals salts solutions and calcination after each metal impregnation with copper (up to 1.5 wt %) and manganese (up to 1.5 wt %).

Keywords

EN

NOx; SCR; catalyst; optimization; mineral-carbon carrier

• Publisher: De Gruyter Open
• Journal: Polish Journal of Chemical Technology
• Year: 2007
• Volume: 9
• Issue: 3
• Pages: 33-37

Dates

published

1 - 1 - 2007

online

6 - 11 - 2007

Contributors

author

Marek Kułażyński

• Faculty of Chemistry, Department of Fuels Chemistry and Technology, Wrocław University of Technology, ul. Gdańska 7/9, 50-344 Wrocław, Poland

author

Krystyna Bratek

• Faculty of Chemistry, Department of Fuels Chemistry and Technology, Wrocław University of Technology, ul. Gdańska 7/9, 50-344 Wrocław, Poland

author

Jerzy Walendziewski

• Faculty of Chemistry, Department of Fuels Chemistry and Technology, Wrocław University of Technology, ul. Gdańska 7/9, 50-344 Wrocław, Poland

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Identifiers

DOI

10.2478/v10026-007-0049-0