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Author(s): B. Valentim
A. Guedes
S. Rodrigues
Title: Parâmetros Raman de carvão e char produzido em leito fluidizado
Issue Date: 2010
Abstract: In order to improve the understanding of the structure of char produced in a fluidized bedreactor reflectance and several Raman analyses were carried out on a set of coals with increasing rankand their char. The reflectance of the chares is discontinuous and related with coal rank. With theincreasing 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
Subject: Ciências da terra e ciências do ambiente
Earth and related Environmental sciences
Document Type: Artigo em Revista Científica Nacional
Rights: openAccess
Appears in Collections:FCUP - Artigo em Revista Científica Nacional

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