SO<sub>2</sub> Poisoning and Recovery of Copper-Based Activated Carbon Catalysts for Selective Catalytic Reduction of NO with NH<sub>3</sub> at Low Temperature
A series of materials based on activated carbon (AC) with copper deposited in various amounts were prepared using an incipient wetness impregnation method and tested as catalysts for selective catalytic reduction of nitrogen oxides with ammonia. The samples were poisoned with SO<sub>2</sub&...
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MDPI AG
2020-12-01
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| Series: | Catalysts |
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| Online Access: | https://www.mdpi.com/2073-4344/10/12/1426 |
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| author | Marwa Saad Agnieszka Szymaszek Anna Białas Bogdan Samojeden Monika Motak |
| author_facet | Marwa Saad Agnieszka Szymaszek Anna Białas Bogdan Samojeden Monika Motak |
| author_sort | Marwa Saad |
| collection | DOAJ |
| description | A series of materials based on activated carbon (AC) with copper deposited in various amounts were prepared using an incipient wetness impregnation method and tested as catalysts for selective catalytic reduction of nitrogen oxides with ammonia. The samples were poisoned with SO<sub>2</sub> and regenerated in order to analyze their susceptibility to deactivation by the harmful component of exhaust gas. NO conversion over the fresh catalyst doped with 10 wt.% of Cu reached 81% of NO conversion at 140 °C and about 90% in the temperature range of 260–300 °C. The rate of poisoning with SO<sub>2</sub> was dependent on Cu loading, but in general, it lowered NO conversion due to the formation of (NH<sub>4</sub>)<sub>2</sub>SO<sub>4</sub> deposits that blocked the active sites of the catalysts. After regeneration, the catalytic activity of the materials was restored and NO conversion exceeded 70% for all of the samples. |
| first_indexed | 2024-03-10T14:17:36Z |
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| institution | Directory Open Access Journal |
| issn | 2073-4344 |
| language | English |
| last_indexed | 2024-03-10T14:17:36Z |
| publishDate | 2020-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Catalysts |
| spelling | doaj.art-8e2902169d4b4c10b27e3cc45cee6a0e2023-11-20T23:38:31ZengMDPI AGCatalysts2073-43442020-12-011012142610.3390/catal10121426SO<sub>2</sub> Poisoning and Recovery of Copper-Based Activated Carbon Catalysts for Selective Catalytic Reduction of NO with NH<sub>3</sub> at Low TemperatureMarwa Saad0Agnieszka Szymaszek1Anna Białas2Bogdan Samojeden3Monika Motak4Faculty of Energy and Fuels, AGH University of Science and Technology, Al. Mickiewicza 30, 30-059 Kraków, PolandFaculty of Energy and Fuels, AGH University of Science and Technology, Al. Mickiewicza 30, 30-059 Kraków, PolandFaculty of Energy and Fuels, AGH University of Science and Technology, Al. Mickiewicza 30, 30-059 Kraków, PolandFaculty of Energy and Fuels, AGH University of Science and Technology, Al. Mickiewicza 30, 30-059 Kraków, PolandFaculty of Energy and Fuels, AGH University of Science and Technology, Al. Mickiewicza 30, 30-059 Kraków, PolandA series of materials based on activated carbon (AC) with copper deposited in various amounts were prepared using an incipient wetness impregnation method and tested as catalysts for selective catalytic reduction of nitrogen oxides with ammonia. The samples were poisoned with SO<sub>2</sub> and regenerated in order to analyze their susceptibility to deactivation by the harmful component of exhaust gas. NO conversion over the fresh catalyst doped with 10 wt.% of Cu reached 81% of NO conversion at 140 °C and about 90% in the temperature range of 260–300 °C. The rate of poisoning with SO<sub>2</sub> was dependent on Cu loading, but in general, it lowered NO conversion due to the formation of (NH<sub>4</sub>)<sub>2</sub>SO<sub>4</sub> deposits that blocked the active sites of the catalysts. After regeneration, the catalytic activity of the materials was restored and NO conversion exceeded 70% for all of the samples.https://www.mdpi.com/2073-4344/10/12/1426SCRactivated carboncopperDeNO<sub>x</sub>SO<sub>2</sub> poisoning |
| spellingShingle | Marwa Saad Agnieszka Szymaszek Anna Białas Bogdan Samojeden Monika Motak SO<sub>2</sub> Poisoning and Recovery of Copper-Based Activated Carbon Catalysts for Selective Catalytic Reduction of NO with NH<sub>3</sub> at Low Temperature Catalysts SCR activated carbon copper DeNO<sub>x</sub> SO<sub>2</sub> poisoning |
| title | SO<sub>2</sub> Poisoning and Recovery of Copper-Based Activated Carbon Catalysts for Selective Catalytic Reduction of NO with NH<sub>3</sub> at Low Temperature |
| title_full | SO<sub>2</sub> Poisoning and Recovery of Copper-Based Activated Carbon Catalysts for Selective Catalytic Reduction of NO with NH<sub>3</sub> at Low Temperature |
| title_fullStr | SO<sub>2</sub> Poisoning and Recovery of Copper-Based Activated Carbon Catalysts for Selective Catalytic Reduction of NO with NH<sub>3</sub> at Low Temperature |
| title_full_unstemmed | SO<sub>2</sub> Poisoning and Recovery of Copper-Based Activated Carbon Catalysts for Selective Catalytic Reduction of NO with NH<sub>3</sub> at Low Temperature |
| title_short | SO<sub>2</sub> Poisoning and Recovery of Copper-Based Activated Carbon Catalysts for Selective Catalytic Reduction of NO with NH<sub>3</sub> at Low Temperature |
| title_sort | so sub 2 sub poisoning and recovery of copper based activated carbon catalysts for selective catalytic reduction of no with nh sub 3 sub at low temperature |
| topic | SCR activated carbon copper DeNO<sub>x</sub> SO<sub>2</sub> poisoning |
| url | https://www.mdpi.com/2073-4344/10/12/1426 |
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