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Título: | The effect of bituminous additives on the carbonization of oxidized coals |
Autor: | Vega González, María Fernanda CSIC ORCID ; Fernández Fernández, Ana María CSIC; Díaz-Faes González, Elvira CSIC ORCID ; Casal Banciella, María Dolores CSIC ORCID ; Barriocanal Rueda, Carmen CSIC ORCID | Palabras clave: | Coal oxidation Additives Coke Coking pressure |
Fecha de publicación: | 1-oct-2016 | Editor: | Elsevier | Citación: | Fuel Processing Technology 156: 19-26 (2017) | Resumen: | Two bituminous coals of different rank and coking characteristics were oxidized at low temperature for two months. Bituminous additives obtained in-situ in the coking plant were used to improve the thermoplastic properties of the oxidized coals. The Gieseler fluidity test was applied to evaluate their coking properties. A thermogravimetric analysis (TGA) of the fresh, oxidized coals and their blends with the bituminous additives was carried in order to evaluate the interaction between the blend components. In addition, carbonization tests of the fresh and oxidized coals and the blends with the additives were carried out in a movable wall oven of 17 kg capacity and the quality of the cokes tested by means of standardized methods generally used by the steel industry. The additives increased coal fluidity but the original fluidity values could not be recovered. From TGA it was concluded that the blend components behave independently of one another during co-carbonization. The oxidation of coal leads to an increase in the dangerousness of the low volatile coal which was related to the porous texture of the cokes. In addition, it was found that the decrease in the quality of the coke produced from low rank oxidized coal can be partially recovered by using bituminous additives. | Versión del editor: | http://dx.doi.org/10.1016/j.fuproc.2016.09.020 | URI: | http://hdl.handle.net/10261/147620 | DOI: | 10.1016/j.fuproc.2016.09.020 | ISSN: | 0378-3820 |
Aparece en las colecciones: | (INCAR) Artículos |
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Effect_bituminous_Vega.pdf | 1,41 MB | Adobe PDF | Visualizar/Abrir |
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