Effect of CaO on catalytic combustion of semi-coke

Generally, adding a certain amount of an additive to pulverized coal can promote its combustion performance. In this paper, the effect of CaO on the combustion characteristics and kinetic behavior of semi-coke was studied by thermogravimetric (TG) analysis. The results show that adding proper amount...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Kou Luyao, Tang Junjing, Hu Tu, Zhou Baocheng, Yang Li
Formato:	article
Lenguaje:	EN
Publicado:	De Gruyter 2021
Materias:	semi-coke catalytic combustion chemical reaction dynamics Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/122b28734a90478fb68ea2d9aa2fe774
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:122b28734a90478fb68ea2d9aa2fe774
record_format	dspace
spelling	oai:doaj.org-article:122b28734a90478fb68ea2d9aa2fe7742021-12-05T14:10:49ZEffect of CaO on catalytic combustion of semi-coke2191-955010.1515/gps-2021-0002https://doaj.org/article/122b28734a90478fb68ea2d9aa2fe7742021-01-01T00:00:00Zhttps://doi.org/10.1515/gps-2021-0002https://doaj.org/toc/2191-9550Generally, adding a certain amount of an additive to pulverized coal can promote its combustion performance. In this paper, the effect of CaO on the combustion characteristics and kinetic behavior of semi-coke was studied by thermogravimetric (TG) analysis. The results show that adding proper amount of CaO can reduce the ignition temperature of semi-coke and increase the combustion rate of semi-coke; with the increase in CaO content, the combustion rate of semi-coke increases first and then decreases, and the results of TG analysis showed that optimal addition amount of CaO is 2 wt%. The apparent activation energy of CaO with different addition amounts of CaO was calculated by Coats–Redfern integration method. The apparent activation energy of semi-coke in the combustion reaction increases first and then decreases with the increase in CaO addition. The apparent activation energies of different samples at different conversion rates were calculated by Flynn–Wall–Ozawa integral method. It was found that the apparent activation energies of semi-coke during combustion reaction decreased with the increase in conversion.Kou LuyaoTang JunjingHu TuZhou BaochengYang LiDe Gruyterarticlesemi-cokecatalytic combustionchemical reaction dynamicsChemistryQD1-999ENGreen Processing and Synthesis, Vol 10, Iss 1, Pp 011-020 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	semi-coke catalytic combustion chemical reaction dynamics Chemistry QD1-999
spellingShingle	semi-coke catalytic combustion chemical reaction dynamics Chemistry QD1-999 Kou Luyao Tang Junjing Hu Tu Zhou Baocheng Yang Li Effect of CaO on catalytic combustion of semi-coke
description	Generally, adding a certain amount of an additive to pulverized coal can promote its combustion performance. In this paper, the effect of CaO on the combustion characteristics and kinetic behavior of semi-coke was studied by thermogravimetric (TG) analysis. The results show that adding proper amount of CaO can reduce the ignition temperature of semi-coke and increase the combustion rate of semi-coke; with the increase in CaO content, the combustion rate of semi-coke increases first and then decreases, and the results of TG analysis showed that optimal addition amount of CaO is 2 wt%. The apparent activation energy of CaO with different addition amounts of CaO was calculated by Coats–Redfern integration method. The apparent activation energy of semi-coke in the combustion reaction increases first and then decreases with the increase in CaO addition. The apparent activation energies of different samples at different conversion rates were calculated by Flynn–Wall–Ozawa integral method. It was found that the apparent activation energies of semi-coke during combustion reaction decreased with the increase in conversion.
format	article
author	Kou Luyao Tang Junjing Hu Tu Zhou Baocheng Yang Li
author_facet	Kou Luyao Tang Junjing Hu Tu Zhou Baocheng Yang Li
author_sort	Kou Luyao
title	Effect of CaO on catalytic combustion of semi-coke
title_short	Effect of CaO on catalytic combustion of semi-coke
title_full	Effect of CaO on catalytic combustion of semi-coke
title_fullStr	Effect of CaO on catalytic combustion of semi-coke
title_full_unstemmed	Effect of CaO on catalytic combustion of semi-coke
title_sort	effect of cao on catalytic combustion of semi-coke
publisher	De Gruyter
publishDate	2021
url	https://doaj.org/article/122b28734a90478fb68ea2d9aa2fe774
work_keys_str_mv	AT kouluyao effectofcaooncatalyticcombustionofsemicoke AT tangjunjing effectofcaooncatalyticcombustionofsemicoke AT hutu effectofcaooncatalyticcombustionofsemicoke AT zhoubaocheng effectofcaooncatalyticcombustionofsemicoke AT yangli effectofcaooncatalyticcombustionofsemicoke
_version_	1718371703231348736

Effect of CaO on catalytic combustion of semi-coke

Ejemplares similares