Steam Gasification of Lignite in a Bench-Scale Fluidized-Bed Gasifier Using Olivine as Bed Material

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 a...

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Main Authors:	Elisa Savuto, Jan May, Andrea Di Carlo, Katia Gallucci, Andrea Di Giuliano, Sergio Rapagnà
Format:	Article
Language:	English
Published:	MDPI AG 2020-04-01
Series:	Applied Sciences
Subjects:	lignite lignite gasification fluidized-bed gasifier olivine
Online Access:	https://www.mdpi.com/2076-3417/10/8/2931

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spelling	doaj-e8d760c0ab1a49c685cf9b844da107302020-11-25T02:24:43ZengMDPI AGApplied Sciences2076-34172020-04-01102931293110.3390/app10082931Steam Gasification of Lignite in a Bench-Scale Fluidized-Bed Gasifier Using Olivine as Bed MaterialElisa Savuto0Jan May1Andrea Di Carlo2Katia Gallucci3Andrea Di Giuliano4Sergio Rapagnà5Faculty of Bioscience and Agro-food and environmental technology, University of Teramo, Via R. Balzarini 1, 64100 Teramo, ItalyInstitute for Energy Systems and Technology, Technische Universität Darmstadt, Otto-Berndt-Straße 2, 64287 Darmstadt, GermanyIndustrial Engineering Department, University of L’Aquila, Piazzale E. Pontieri 1, Monteluco di Roio, 67100 L’Aquila, ItalyIndustrial Engineering Department, University of L’Aquila, Piazzale E. Pontieri 1, Monteluco di Roio, 67100 L’Aquila, ItalyIndustrial Engineering Department, University of L’Aquila, Piazzale E. Pontieri 1, Monteluco di Roio, 67100 L’Aquila, ItalyFaculty of Bioscience and Agro-food and environmental technology, University of Teramo, Via R. Balzarini 1, 64100 Teramo, ItalyThe 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 H<sub>2</sub> 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.https://www.mdpi.com/2076-3417/10/8/2931lignitelignite gasificationfluidized-bed gasifierolivine
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Elisa Savuto Jan May Andrea Di Carlo Katia Gallucci Andrea Di Giuliano Sergio Rapagnà
spellingShingle	Elisa Savuto Jan May Andrea Di Carlo Katia Gallucci Andrea Di Giuliano Sergio Rapagnà Steam Gasification of Lignite in a Bench-Scale Fluidized-Bed Gasifier Using Olivine as Bed Material Applied Sciences lignite lignite gasification fluidized-bed gasifier olivine
author_facet	Elisa Savuto Jan May Andrea Di Carlo Katia Gallucci Andrea Di Giuliano Sergio Rapagnà
author_sort	Elisa Savuto
title	Steam Gasification of Lignite in a Bench-Scale Fluidized-Bed Gasifier Using Olivine as Bed Material
title_short	Steam Gasification of Lignite in a Bench-Scale Fluidized-Bed Gasifier Using Olivine as Bed Material
title_full	Steam Gasification of Lignite in a Bench-Scale Fluidized-Bed Gasifier Using Olivine as Bed Material
title_fullStr	Steam Gasification of Lignite in a Bench-Scale Fluidized-Bed Gasifier Using Olivine as Bed Material
title_full_unstemmed	Steam Gasification of Lignite in a Bench-Scale Fluidized-Bed Gasifier Using Olivine as Bed Material
title_sort	steam gasification of lignite in a bench-scale fluidized-bed gasifier using olivine as bed material
publisher	MDPI AG
series	Applied Sciences
issn	2076-3417
publishDate	2020-04-01
description	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 H<sub>2</sub> 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.
topic	lignite lignite gasification fluidized-bed gasifier olivine
url	https://www.mdpi.com/2076-3417/10/8/2931
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Steam Gasification of Lignite in a Bench-Scale Fluidized-Bed Gasifier Using Olivine as Bed Material

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