Investigation into the operation of an autothermal two-section subbituminous coal fluidized bed gasifier
Abstract Using a newly developed experimental setup, the features and advantages of an autothermal single-casing atmospheric subbituminous coal fluidized bed air-blown gasifier, combining a combustion and gasification section, and mixing the dispersed phase (inert material, char) and heat exchange b...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2023-06-01
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| Series: | International Journal of Coal Science & Technology |
| Subjects: | |
| Online Access: | https://doi.org/10.1007/s40789-023-00596-3 |
| _version_ | 1797789982023221248 |
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| author | Nikolay Abaimov Alexander Ryzhkov Alexey Dubinin Lu Ding Vladimir Tuponogov Sergey Alekseenko |
| author_facet | Nikolay Abaimov Alexander Ryzhkov Alexey Dubinin Lu Ding Vladimir Tuponogov Sergey Alekseenko |
| author_sort | Nikolay Abaimov |
| collection | DOAJ |
| description | Abstract Using a newly developed experimental setup, the features and advantages of an autothermal single-casing atmospheric subbituminous coal fluidized bed air-blown gasifier, combining a combustion and gasification section, and mixing the dispersed phase (inert material, char) and heat exchange between them through an annular transfer device, have been revealed. To increase the efficiency of the gasifier, an experimental-computational method was developed find the conditions for optimal operation, combining changing the annular flow’s geometry and regulating the primary air for gasification. A simple and reliable multizone thermodynamic calculation model makes it possible to predict the composition of char and syngas in the gasification section with acceptable accuracy. This method confirmed that a two-section fluidized bed gasifier can provide efficient gasification of solid fuels and is suitable for use in small-scale cogeneration plants. Syngas with a heating value of 3.6–4.5 MJ/m3 and CGE of 38.2%–42.3% was obtained in the experimental setup without optimizing the primary air flow rate. With optimization, the indicators increased to the heating value of syngas of 5.20–5.34 MJ/m3 and CGE of 42.5%–50.0%. With heat regeneration of 0.8, CGE increases to 70%. |
| first_indexed | 2024-03-13T01:58:17Z |
| format | Article |
| id | doaj.art-5da09c85598c4dc7816f14bd8c3d2109 |
| institution | Directory Open Access Journal |
| issn | 2095-8293 2198-7823 |
| language | English |
| last_indexed | 2024-03-13T01:58:17Z |
| publishDate | 2023-06-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | International Journal of Coal Science & Technology |
| spelling | doaj.art-5da09c85598c4dc7816f14bd8c3d21092023-07-02T11:03:58ZengSpringerOpenInternational Journal of Coal Science & Technology2095-82932198-78232023-06-0110111410.1007/s40789-023-00596-3Investigation into the operation of an autothermal two-section subbituminous coal fluidized bed gasifierNikolay Abaimov0Alexander Ryzhkov1Alexey Dubinin2Lu Ding3Vladimir Tuponogov4Sergey Alekseenko5Ural Federal UniversityUral Federal UniversityUral Federal UniversityInstitute of Clean Coal Technology, East China University of Science and TechnologyUral Federal UniversityUral Federal UniversityAbstract Using a newly developed experimental setup, the features and advantages of an autothermal single-casing atmospheric subbituminous coal fluidized bed air-blown gasifier, combining a combustion and gasification section, and mixing the dispersed phase (inert material, char) and heat exchange between them through an annular transfer device, have been revealed. To increase the efficiency of the gasifier, an experimental-computational method was developed find the conditions for optimal operation, combining changing the annular flow’s geometry and regulating the primary air for gasification. A simple and reliable multizone thermodynamic calculation model makes it possible to predict the composition of char and syngas in the gasification section with acceptable accuracy. This method confirmed that a two-section fluidized bed gasifier can provide efficient gasification of solid fuels and is suitable for use in small-scale cogeneration plants. Syngas with a heating value of 3.6–4.5 MJ/m3 and CGE of 38.2%–42.3% was obtained in the experimental setup without optimizing the primary air flow rate. With optimization, the indicators increased to the heating value of syngas of 5.20–5.34 MJ/m3 and CGE of 42.5%–50.0%. With heat regeneration of 0.8, CGE increases to 70%.https://doi.org/10.1007/s40789-023-00596-3CoalSyngasGasificationBubbling fluidized bedThermodynamicsModeling |
| spellingShingle | Nikolay Abaimov Alexander Ryzhkov Alexey Dubinin Lu Ding Vladimir Tuponogov Sergey Alekseenko Investigation into the operation of an autothermal two-section subbituminous coal fluidized bed gasifier International Journal of Coal Science & Technology Coal Syngas Gasification Bubbling fluidized bed Thermodynamics Modeling |
| title | Investigation into the operation of an autothermal two-section subbituminous coal fluidized bed gasifier |
| title_full | Investigation into the operation of an autothermal two-section subbituminous coal fluidized bed gasifier |
| title_fullStr | Investigation into the operation of an autothermal two-section subbituminous coal fluidized bed gasifier |
| title_full_unstemmed | Investigation into the operation of an autothermal two-section subbituminous coal fluidized bed gasifier |
| title_short | Investigation into the operation of an autothermal two-section subbituminous coal fluidized bed gasifier |
| title_sort | investigation into the operation of an autothermal two section subbituminous coal fluidized bed gasifier |
| topic | Coal Syngas Gasification Bubbling fluidized bed Thermodynamics Modeling |
| url | https://doi.org/10.1007/s40789-023-00596-3 |
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