Savuto, Elisa ; May, Jan ; Di Carlo, Andrea ; Gallucci, Katia ; Di Giuliano, Andrea ; Rapagnà, Sergio (2020)
Steam gasification of lignite in a bench-scale fluidized-bed gasifier using olivine as bed material.
In: Applied Sciences, 10 (8)
doi: 10.3390/app10082931
Article, Bibliographie
This is the latest version of this item.
Abstract
The gasification of lignite could be a promising sustainable alternative to combustion, because it causes reduced emissions and allows the production of syngas, which is a versatile gaseous fuel that can be used for cogeneration, Fischer-Tropsch synthesis, or the synthesis of other bio-fuels, such as methanol. For the safe and smooth exploitation of syngas, it is fundamental to have a high quality gas, with a high content of H₂ and CO and minimum content of pollutants, such as particulate and tars. In this work, experimental tests on lignite gasification are carried out in a bench-scale fluidized-bed reactor with olivine as bed material, chosen for its catalytic properties that can enhance tar reduction. Some operating parameters were changed throughout the tests, in order to study their influence on the quality of the syngas produced, and pressure fluctuation signals were acquired to evaluate the fluidization quality and diagnose correlated sintering or the agglomeration of bed particles. The effect of temperature and small air injections in the freeboard were investigated and evaluated in terms of the conversion efficiencies, gas composition, and tar produced.
| Item Type: | Article |
|---|---|
| Erschienen: | 2020 |
| Creators: | Savuto, Elisa ; May, Jan ; Di Carlo, Andrea ; Gallucci, Katia ; Di Giuliano, Andrea ; Rapagnà, Sergio |
| Type of entry: | Bibliographie |
| Title: | Steam gasification of lignite in a bench-scale fluidized-bed gasifier using olivine as bed material |
| Language: | English |
| Date: | 2020 |
| Place of Publication: | Basel |
| Publisher: | MDPI |
| Journal or Publication Title: | Applied Sciences |
| Volume of the journal: | 10 |
| Issue Number: | 8 |
| Collation: | 18 Seiten |
| DOI: | 10.3390/app10082931 |
| Corresponding Links: | |
| Abstract: | The gasification of lignite could be a promising sustainable alternative to combustion, because it causes reduced emissions and allows the production of syngas, which is a versatile gaseous fuel that can be used for cogeneration, Fischer-Tropsch synthesis, or the synthesis of other bio-fuels, such as methanol. For the safe and smooth exploitation of syngas, it is fundamental to have a high quality gas, with a high content of H₂ and CO and minimum content of pollutants, such as particulate and tars. In this work, experimental tests on lignite gasification are carried out in a bench-scale fluidized-bed reactor with olivine as bed material, chosen for its catalytic properties that can enhance tar reduction. Some operating parameters were changed throughout the tests, in order to study their influence on the quality of the syngas produced, and pressure fluctuation signals were acquired to evaluate the fluidization quality and diagnose correlated sintering or the agglomeration of bed particles. The effect of temperature and small air injections in the freeboard were investigated and evaluated in terms of the conversion efficiencies, gas composition, and tar produced. |
| Uncontrolled Keywords: | lignite, lignite gasification, fluidized-bed gasifier, olivine |
| Additional Information: | This article belongs to the Special Issue Thermochemical Conversion Processes for Solid Fuels and Renewable Energies |
| Classification DDC: | 600 Technology, medicine, applied sciences > 620 Engineering and machine engineering |
| Divisions: | 16 Department of Mechanical Engineering 16 Department of Mechanical Engineering > Institut für Energiesysteme und Energietechnik (EST) |
| Date Deposited: | 17 Jan 2024 08:57 |
| Last Modified: | 17 Jan 2024 08:57 |
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| Suche nach Titel in: | TUfind oder in Google |
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Steam Gasification of Lignite in a Bench-Scale Fluidized-Bed Gasifier Using Olivine as Bed Material. (deposited 16 Jan 2024 10:31)
- Steam gasification of lignite in a bench-scale fluidized-bed gasifier using olivine as bed material. (deposited 17 Jan 2024 08:57) [Currently Displayed]
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