Improvement of Low-Temperature Activity of FeBeta Monolith Catalyst in NH3-SCR of NOx
| Autor: | Dmitriy S. Krivoruchenko, Galina N. Baeva, Alina I. Mytareva, Dmitriy A. Bokarev, Alexey Yu. Belyankin, Alexander Yu. Stakheev |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
geography
Materials science geography.geographical_feature_category 010405 organic chemistry Selective catalytic reduction Cordierite General Chemistry engineering.material 010402 general chemistry 01 natural sciences Catalysis 0104 chemical sciences Coating Chemical engineering engineering Monolith Selectivity Zeolite NOx |
| Zdroj: | Topics in Catalysis. 62:86-92 |
| ISSN: | 1572-9028 1022-5528 |
| DOI: | 10.1007/s11244-018-1094-z |
| Popis: | FeBeta||Mn–Ce/FeBeta catalyst was prepared by coating cordierite monolith with FeBeta zeolite followed by an impregnation of its downstream part by Mn–Ce solution. The resulting dual-zone catalyst demonstrates improved catalytic performance in the selective catalytic reduction of NOx by NH3 (NH3-SCR) as compared to the parent Fe-Beta. The catalyst exhibits 80–90% NOx conversion and 100% selectivity to N2 within wide temperature ranges: 180–500 °C (at GHSV = 18,000 h−1) and 260–500 °C (at GHSV = 54,000 h−1). Moreover, the dual-zone catalyst provides favorable NH3-slip removal efficiency even at NH3/NO = 1.60. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full text from SpringerLink