Atomic Layer Deposition Coated Filters in Catalytic Filtration of Gasification Gas
Steel filter discs were catalytically activated by ALD, using a coating of supporting Al<sub>2</sub>O<sub>3</sub> layer and an active NiO layer for gas cleaning. Prepared discs were tested for model biomass gasification and gas catalytic filtration to reduce or eliminate the...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-05-01
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| Series: | Catalysts |
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| Online Access: | https://www.mdpi.com/2073-4344/11/6/688 |
| _version_ | 1797532132751441920 |
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| author | Tyko Viertiö Viivi Kivelä Matti Putkonen Johanna Kihlman Pekka Simell |
| author_facet | Tyko Viertiö Viivi Kivelä Matti Putkonen Johanna Kihlman Pekka Simell |
| author_sort | Tyko Viertiö |
| collection | DOAJ |
| description | Steel filter discs were catalytically activated by ALD, using a coating of supporting Al<sub>2</sub>O<sub>3</sub> layer and an active NiO layer for gas cleaning. Prepared discs were tested for model biomass gasification and gas catalytic filtration to reduce or eliminate the need for a separate reforming unit for gasification gas tars and lighter hydrocarbons. Two different coating methods were tested. The method utilizing the stop-flow setting was shown to be the most suitable for the preparation of active and durable catalytic filters, which significantly decreases the amount of tar compounds in gasification gas. A pressure of 5 bar and temperatures of over 850 °C are required for efficient tar reforming. In optimal conditions, applying catalytic coating to the filter resulted in a seven-fold naphthalene conversion increase from 7% to 49%. |
| first_indexed | 2024-03-10T10:54:47Z |
| format | Article |
| id | doaj.art-9a5a53d6f3b54a8b97444ea5a82ac1c2 |
| institution | Directory Open Access Journal |
| issn | 2073-4344 |
| language | English |
| last_indexed | 2024-03-10T10:54:47Z |
| publishDate | 2021-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Catalysts |
| spelling | doaj.art-9a5a53d6f3b54a8b97444ea5a82ac1c22023-11-21T21:57:45ZengMDPI AGCatalysts2073-43442021-05-0111668810.3390/catal11060688Atomic Layer Deposition Coated Filters in Catalytic Filtration of Gasification GasTyko Viertiö0Viivi Kivelä1Matti Putkonen2Johanna Kihlman3Pekka Simell4VTT Technical Research Centre of Finland Ltd., P.O. Box 1000, FIN-02044 Espoo, FinlandVTT Technical Research Centre of Finland Ltd., P.O. Box 1000, FIN-02044 Espoo, FinlandDepartment of Chemistry, University of Helsinki, P.O. Box 55, FIN-00014 Helsinki, FinlandVTT Technical Research Centre of Finland Ltd., P.O. Box 1000, FIN-02044 Espoo, FinlandVTT Technical Research Centre of Finland Ltd., P.O. Box 1000, FIN-02044 Espoo, FinlandSteel filter discs were catalytically activated by ALD, using a coating of supporting Al<sub>2</sub>O<sub>3</sub> layer and an active NiO layer for gas cleaning. Prepared discs were tested for model biomass gasification and gas catalytic filtration to reduce or eliminate the need for a separate reforming unit for gasification gas tars and lighter hydrocarbons. Two different coating methods were tested. The method utilizing the stop-flow setting was shown to be the most suitable for the preparation of active and durable catalytic filters, which significantly decreases the amount of tar compounds in gasification gas. A pressure of 5 bar and temperatures of over 850 °C are required for efficient tar reforming. In optimal conditions, applying catalytic coating to the filter resulted in a seven-fold naphthalene conversion increase from 7% to 49%.https://www.mdpi.com/2073-4344/11/6/688atomic layer deposition (ALD)gasification gastar reformingcatalytic filtration |
| spellingShingle | Tyko Viertiö Viivi Kivelä Matti Putkonen Johanna Kihlman Pekka Simell Atomic Layer Deposition Coated Filters in Catalytic Filtration of Gasification Gas Catalysts atomic layer deposition (ALD) gasification gas tar reforming catalytic filtration |
| title | Atomic Layer Deposition Coated Filters in Catalytic Filtration of Gasification Gas |
| title_full | Atomic Layer Deposition Coated Filters in Catalytic Filtration of Gasification Gas |
| title_fullStr | Atomic Layer Deposition Coated Filters in Catalytic Filtration of Gasification Gas |
| title_full_unstemmed | Atomic Layer Deposition Coated Filters in Catalytic Filtration of Gasification Gas |
| title_short | Atomic Layer Deposition Coated Filters in Catalytic Filtration of Gasification Gas |
| title_sort | atomic layer deposition coated filters in catalytic filtration of gasification gas |
| topic | atomic layer deposition (ALD) gasification gas tar reforming catalytic filtration |
| url | https://www.mdpi.com/2073-4344/11/6/688 |
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