Skip navigation
Universidade Federal da Bahia |
Repositório Institucional da UFBA
Use este identificador para citar ou linkar para este item: https://repositorio.ufba.br/handle/ri/15171
Tipo: Artigo de Periódico
Título: A study of the particle size effect on the pozzolanic activity of an equilibrium catalyst
Título(s) alternativo(s): Journal of Thermal Analysis and Calorimetry
Autor(es): Gonçalves, Jardel Pereira
Cunha, Armando Lucas Cherem da
Lemos, Mariana Santos
Meth, Sergio
Dweck, Jo
Autor(es): Gonçalves, Jardel Pereira
Cunha, Armando Lucas Cherem da
Lemos, Mariana Santos
Meth, Sergio
Dweck, Jo
Abstract: A study by thermogravimetry was done to evaluate the influence of the particle size on the pozzolanic activity of a residual equilibrium catalyst from a fluid catalytic cracking unit of a Brazilian refinery. For this purpose, cement type II pastes with the same substitution degree containing coarse, medium, and fine fractions of the residual catalyzer were evaluated after 28 days of setting. Using thermogravimetric and derivative thermogravimetric analysis, the contents of total combined water and calcium hydroxide were determined. Comparing the results on initial cement mass basis of each sample with those of a control paste without any residual catalyst addition, it can be seen that the coarse and medium fractions present similar pozzolanic activity and the fine one presents a higher activity than the others due to its specific area and composition.
Palavras-chave: Equilibrium catalyst
Fluid catalytic cracking
Thermogravimetry
Pozzolanic activity
Tipo de Acesso: Acesso Aberto
URI: http://repositorio.ufba.br/ri/handle/ri/15171
Data do documento: 2011
Aparece nas coleções:Artigo Publicado em Periódico (PPEE)

Arquivos associados a este item:
Arquivo Descrição TamanhoFormato 
Jardel Pereira Gonçalves.pdf381,63 kBAdobe PDFVisualizar/Abrir
Mostrar registro completo do item Visualizar estatísticas


Os itens no repositório estão protegidos por copyright, com todos os direitos reservados, salvo quando é indicado o contrário.