Autor(es):
B. Valentim 
; A. Guedes ; S. Rodrigues
Data: 2010
Identificador Persistente: http://hdl.handle.net/10216/53060
Origem: Repositório Aberto da Universidade do Porto
Detalhes do Documento
Parâmetros Raman de carvão e char produzido em leito fluidizado
Descrição
In order to improve the understanding of the structure of char produced in a fluidized bed reactor reflectance and several Raman analyses were carried out on a set of coals with increasing rank and their char. The reflectance of the chares is discontinuous and related with coal rank. With the increasing of rank a general shift of the D band towards lower wavenumbers and an increase of the ID/IG intensity area ratio were observed on the coals. These trends are not evident in the char, since pyrolysis seems to have had a homogenizing effect on these parameters
In order to improve the understanding of the structure of char produced in a fluidized bed reactor reflectance and several Raman analyses were carried out on a set of coals with increasing rank and their char. The reflectance of the chares is discontinuous and related with coal rank. With the increasing of rank a general shift of the D band towards lower wavenumbers and an increase of the ID/IG intensity area ratio were observed on the coals. These trends are not evident in the char, since pyrolysis seems to have had a homogenizing effect on these parameters
Tipo de Documento
Artigo
Idioma Português
Idioma Português
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