Influence of Pre-Carburization on Performance of Industrial Cobalt-Based Pelletized Fischer–Tropsch Catalyst
The deposition of nanostructured carbon particles on the surface of a catalyst (carburization) is routinely considered an inalienable and undesirable secondary process in Fischer–Tropsch synthesis. However, very little is known about the actual role of the nanocarbon particles and how they influence...
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| Format: | Article |
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MDPI AG
2023-08-01
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| Series: | Catalysts |
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| Online Access: | https://www.mdpi.com/2073-4344/13/8/1188 |
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| author | Vladimir Mordkovich Kirill Gryaznov Lilia Sineva Ekaterina Asalieva Andrei Gorshkov Eduard Mitberg |
| author_facet | Vladimir Mordkovich Kirill Gryaznov Lilia Sineva Ekaterina Asalieva Andrei Gorshkov Eduard Mitberg |
| author_sort | Vladimir Mordkovich |
| collection | DOAJ |
| description | The deposition of nanostructured carbon particles on the surface of a catalyst (carburization) is routinely considered an inalienable and undesirable secondary process in Fischer–Tropsch synthesis. However, very little is known about the actual role of the nanocarbon particles and how they influence catalysis. This paper reports research on the influence of carbon deposition on the performance of a cobalt-based Fischer–Tropsch-synthesized catalyst in an industrial-scale fixed-bed reactor (length—6000 mm, inner diameter—16.5 mm). The comparison of the structure and catalytic performance of a pelletized cobalt catalyst with the same catalyst, which was preliminary carburized, is presented. Pellet pore structure, catalyst surface, cobalt cluster morphology and the main catalytic properties (CO conversion, C<sub>5+</sub> hydrocarbon productivity and selectivity to C<sub>5+</sub> hydrocarbons and CH<sub>4</sub> formation) were investigated. It is shown that the primary pre-carburization effect is a result of the physical blockage of the catalyst pore structure not followed by drastic changes in the cobalt cluster’s structure. |
| first_indexed | 2024-03-11T00:03:31Z |
| format | Article |
| id | doaj.art-9389e2f7d485420a996a05742ee97132 |
| institution | Directory Open Access Journal |
| issn | 2073-4344 |
| language | English |
| last_indexed | 2024-03-11T00:03:31Z |
| publishDate | 2023-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Catalysts |
| spelling | doaj.art-9389e2f7d485420a996a05742ee971322023-11-19T00:35:27ZengMDPI AGCatalysts2073-43442023-08-01138118810.3390/catal13081188Influence of Pre-Carburization on Performance of Industrial Cobalt-Based Pelletized Fischer–Tropsch CatalystVladimir Mordkovich0Kirill Gryaznov1Lilia Sineva2Ekaterina Asalieva3Andrei Gorshkov4Eduard Mitberg5Technological Institute for Superhard and Novel Carbon Materials, Department of Carbon Nanostructures, Moscow 108840, RussiaTechnological Institute for Superhard and Novel Carbon Materials, Department of Carbon Nanostructures, Moscow 108840, RussiaTechnological Institute for Superhard and Novel Carbon Materials, Department of Carbon Nanostructures, Moscow 108840, RussiaTechnological Institute for Superhard and Novel Carbon Materials, Department of Carbon Nanostructures, Moscow 108840, RussiaOOO INFRA, Moscow 108840, RussiaTechnological Institute for Superhard and Novel Carbon Materials, Department of Carbon Nanostructures, Moscow 108840, RussiaThe deposition of nanostructured carbon particles on the surface of a catalyst (carburization) is routinely considered an inalienable and undesirable secondary process in Fischer–Tropsch synthesis. However, very little is known about the actual role of the nanocarbon particles and how they influence catalysis. This paper reports research on the influence of carbon deposition on the performance of a cobalt-based Fischer–Tropsch-synthesized catalyst in an industrial-scale fixed-bed reactor (length—6000 mm, inner diameter—16.5 mm). The comparison of the structure and catalytic performance of a pelletized cobalt catalyst with the same catalyst, which was preliminary carburized, is presented. Pellet pore structure, catalyst surface, cobalt cluster morphology and the main catalytic properties (CO conversion, C<sub>5+</sub> hydrocarbon productivity and selectivity to C<sub>5+</sub> hydrocarbons and CH<sub>4</sub> formation) were investigated. It is shown that the primary pre-carburization effect is a result of the physical blockage of the catalyst pore structure not followed by drastic changes in the cobalt cluster’s structure.https://www.mdpi.com/2073-4344/13/8/1188Fischer–Tropsch synthesiscobalt catalystpelletized catalystexfoliated graphitefixed bedindustrial-scale reactor |
| spellingShingle | Vladimir Mordkovich Kirill Gryaznov Lilia Sineva Ekaterina Asalieva Andrei Gorshkov Eduard Mitberg Influence of Pre-Carburization on Performance of Industrial Cobalt-Based Pelletized Fischer–Tropsch Catalyst Catalysts Fischer–Tropsch synthesis cobalt catalyst pelletized catalyst exfoliated graphite fixed bed industrial-scale reactor |
| title | Influence of Pre-Carburization on Performance of Industrial Cobalt-Based Pelletized Fischer–Tropsch Catalyst |
| title_full | Influence of Pre-Carburization on Performance of Industrial Cobalt-Based Pelletized Fischer–Tropsch Catalyst |
| title_fullStr | Influence of Pre-Carburization on Performance of Industrial Cobalt-Based Pelletized Fischer–Tropsch Catalyst |
| title_full_unstemmed | Influence of Pre-Carburization on Performance of Industrial Cobalt-Based Pelletized Fischer–Tropsch Catalyst |
| title_short | Influence of Pre-Carburization on Performance of Industrial Cobalt-Based Pelletized Fischer–Tropsch Catalyst |
| title_sort | influence of pre carburization on performance of industrial cobalt based pelletized fischer tropsch catalyst |
| topic | Fischer–Tropsch synthesis cobalt catalyst pelletized catalyst exfoliated graphite fixed bed industrial-scale reactor |
| url | https://www.mdpi.com/2073-4344/13/8/1188 |
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