Servicios Personalizados
Revista
Articulo
Indicadores
- Citado por SciELO
- Accesos
Links relacionados
- Citado por Google
- Similares en SciELO
- Similares en Google
Compartir
Ingeniería y competitividad
versión impresa ISSN 0123-3033
Resumen
JIMENEZ, Francisco; MONDRAGON, Fanor y LOPEZ, Diana. Caracterización RAMAN de carbonizados de carbón obtenidos en un reactor de lecho fijo presurizadoRaman characterization of coal chars obtained in a pressurized bed reactor. Ing. compet. [online]. 2012, vol.14, n.2, pp.111-118. ISSN 0123-3033.
The aim of this work was to evaluate the effect of pressure on the structural properties and subsequent reactivity of coal chars. Pyrolysis reactions were carried out in a fixed bed reactor at 800 °C, by varying the pressure from 1 to 20 atm. Two coal samples with a substantial difference in the swelling index were used for the analysis. Structural analysis of the coal chars was performed using Raman microscopy, this characterization was intended to figure out differences in the carbonaceous structures after the pressurized pyrolysis. The coal chars characterization was complemented by MEB micrographs and reactivity with molecular oxygen in TGA. Characteristic Raman bands showed significant changes for the pressurized condition without clear differences due to pressure changes. The pyrolysis pressure affected the ordering of the carbonaceous structures during pyrolysis, and this effect was less significant in the coal with softening properties
Palabras clave : Char reactivity; Char structure; Pressurized pyrolysis.