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Steam gasification of lignite in a bench-scale fluidized-bed gasifier using olivine as bed material

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
Artikel, Bibliographie

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Kurzbeschreibung (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.

Typ des Eintrags: Artikel
Erschienen: 2020
Autor(en): Savuto, Elisa ; May, Jan ; Di Carlo, Andrea ; Gallucci, Katia ; Di Giuliano, Andrea ; Rapagnà, Sergio
Art des Eintrags: Bibliographie
Titel: Steam gasification of lignite in a bench-scale fluidized-bed gasifier using olivine as bed material
Sprache: Englisch
Publikationsjahr: 2020
Ort: Basel
Verlag: MDPI
Titel der Zeitschrift, Zeitung oder Schriftenreihe: Applied Sciences
Jahrgang/Volume einer Zeitschrift: 10
(Heft-)Nummer: 8
Kollation: 18 Seiten
DOI: 10.3390/app10082931
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Kurzbeschreibung (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.

Freie Schlagworte: lignite, lignite gasification, fluidized-bed gasifier, olivine
Zusätzliche Informationen:

This article belongs to the Special Issue Thermochemical Conversion Processes for Solid Fuels and Renewable Energies

Sachgruppe der Dewey Dezimalklassifikatin (DDC): 600 Technik, Medizin, angewandte Wissenschaften > 620 Ingenieurwissenschaften und Maschinenbau
Fachbereich(e)/-gebiet(e): 16 Fachbereich Maschinenbau
16 Fachbereich Maschinenbau > Institut für Energiesysteme und Energietechnik (EST)
Hinterlegungsdatum: 17 Jan 2024 08:57
Letzte Änderung: 17 Jan 2024 08:57
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