Kinetic Parameters and Reactivity for the Steam Gasification of Coal Chars Obtained under Different Pyrolysis Temperatures and Pressures

Kinetic Parameters and Reactivity for the Steam Gasification of Coal Chars Obtained under Different Pyrolysis Temperatures and Pressures

This document is the Accepted Manuscript version of a Published Work that appeared in final form in Energy and Fuels, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://doi.org/10.1021/ef200411j

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Main Authors: Fermoso Domínguez, Javier, Gil Matellanes, María Victoria, García López, Susana, Pevida García, Covadonga, Pis Martínez, José Juan, Rubiera González, Fernando
Other Authors: Fermoso Domínguez, Javier [0000-0001-5944-8334]
Format: artículo biblioteca
Language:English
Published: American Chemical Society 2011-06-22
Subjects:Coal char, High devolatilization pressure, Steam gasification, Random pore model, Kinetic parameters,
Online Access:http://hdl.handle.net/10261/172524
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spelling dig-incar-es-10261-1725242018-11-23T01:56:25Z Kinetic Parameters and Reactivity for the Steam Gasification of Coal Chars Obtained under Different Pyrolysis Temperatures and Pressures Fermoso Domínguez, Javier Gil Matellanes, María Victoria García López, Susana Pevida García, Covadonga Pis Martínez, José Juan Rubiera González, Fernando Fermoso Domínguez, Javier [0000-0001-5944-8334] Gil Matellanes, María Victoria [0000-0002-2258-3011] Pevida García, Covadonga [0000-0002-4662-8448] Rubiera González, Fernando [0000-0003-0385-1102] Coal char High devolatilization pressure Steam gasification Random pore model Kinetic parameters This document is the Accepted Manuscript version of a Published Work that appeared in final form in Energy and Fuels, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://doi.org/10.1021/ef200411j The effect of devolatilization conditions (pressure and temperature) on the steam gasification kinetics and reactivity of coal chars was investigated. For this purpose, five different rank coals were selected: a lignite (LT), two high-volatile bituminous coals (DT and SA), a low-volatile bituminous coal (DI), and a semianthracite (HV). The coal chars were obtained by devolatilization in a novel pressurized fixed-bed reactor at temperatures of 800, 900, and 1000 °C and pressures of 1, 5, 10, and 20 atm. The reactivity of the chars was studied by isothermal thermogravimetric analysis in a kinetically controlled regime at different temperatures under a steam atmosphere. The reactive behavior of the chars was evaluated by means of the random pore model (RPM), which satisfactorily described the steam gasification of the coal chars. The gasification apparent reaction rate increased as the devolatilization pressure increased, whereas this parameter decreased as the devolatilization temperature increased. M.V. Gil acknowledges funding from the CSIC JAE Program co-financed by the European Social Fund. Peer reviewed 2018-11-22T13:29:11Z 2018-11-22T13:29:11Z 2011-06-22 artículo http://purl.org/coar/resource_type/c_6501 Energy and Fuels 25(8): 3574-3580 (2011) 0887-0624 http://hdl.handle.net/10261/172524 10.1021/ef200411j 1520-5029 en Postprint https://doi.org/10.1021/ef200411j Sí open American Chemical Society
institution INCAR ES
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country España
countrycode ES
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region Europa del Sur
libraryname Biblioteca del INCAR España
language English
topic Coal char
High devolatilization pressure
Steam gasification
Random pore model
Kinetic parameters
Coal char
High devolatilization pressure
Steam gasification
Random pore model
Kinetic parameters
spellingShingle Coal char
High devolatilization pressure
Steam gasification
Random pore model
Kinetic parameters
Coal char
High devolatilization pressure
Steam gasification
Random pore model
Kinetic parameters
Fermoso Domínguez, Javier
Gil Matellanes, María Victoria
García López, Susana
Pevida García, Covadonga
Pis Martínez, José Juan
Rubiera González, Fernando
Kinetic Parameters and Reactivity for the Steam Gasification of Coal Chars Obtained under Different Pyrolysis Temperatures and Pressures
description This document is the Accepted Manuscript version of a Published Work that appeared in final form in Energy and Fuels, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://doi.org/10.1021/ef200411j
author2 Fermoso Domínguez, Javier [0000-0001-5944-8334]
author_facet Fermoso Domínguez, Javier [0000-0001-5944-8334]
Fermoso Domínguez, Javier
Gil Matellanes, María Victoria
García López, Susana
Pevida García, Covadonga
Pis Martínez, José Juan
Rubiera González, Fernando
format artículo
topic_facet Coal char
High devolatilization pressure
Steam gasification
Random pore model
Kinetic parameters
author Fermoso Domínguez, Javier
Gil Matellanes, María Victoria
García López, Susana
Pevida García, Covadonga
Pis Martínez, José Juan
Rubiera González, Fernando
author_sort Fermoso Domínguez, Javier
title Kinetic Parameters and Reactivity for the Steam Gasification of Coal Chars Obtained under Different Pyrolysis Temperatures and Pressures
title_short Kinetic Parameters and Reactivity for the Steam Gasification of Coal Chars Obtained under Different Pyrolysis Temperatures and Pressures
title_full Kinetic Parameters and Reactivity for the Steam Gasification of Coal Chars Obtained under Different Pyrolysis Temperatures and Pressures
title_fullStr Kinetic Parameters and Reactivity for the Steam Gasification of Coal Chars Obtained under Different Pyrolysis Temperatures and Pressures
title_full_unstemmed Kinetic Parameters and Reactivity for the Steam Gasification of Coal Chars Obtained under Different Pyrolysis Temperatures and Pressures
title_sort kinetic parameters and reactivity for the steam gasification of coal chars obtained under different pyrolysis temperatures and pressures
publisher American Chemical Society
publishDate 2011-06-22
url http://hdl.handle.net/10261/172524
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