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Type: Artigo de periódico
Title: Estudo da influência dos particulados no fenômeno de agregação dos asfaltenos por espectrometria de varredura óptica
Title Alternative: Study of the influence of the particulate in aggregation phenomenon of the asphaltenes by optical scanning spectrometry
Author: Henriques, Claudete Bernardo
Winter, Alessandra
Koroishi, Erika Tomie
Maciel Filho, Rubens
Bueno, Maria Izabel Maretti Silveira
Abstract: The processing of national petroleums causes many operational problems due to the asphaltene aggregation phenomena. To evaluate the behavior of these phenomena, a study based on optical scan technique was carried out to understand the behavior of pure oils and their mixtures. The evaluation according to criteria established by ASTM D7061-06¹ gives a result of asphaltene flocculation of according to the separability number. In this study, the aspects related to the existence of colloidal forms of peptized asphaltenes in distinct solvents present in petroleums can cause changes in the kinetics of asphaltene flocculation.
Subject: asphaltenes
aggregation phenomena
separability number
Editor: Sociedade Brasileira de Química
Rights: aberto
Identifier DOI: 10.1590/S0100-40422011000300011
Date Issue: 1-Jan-2011
Appears in Collections:Artigos e Materiais de Revistas Científicas - Unicamp

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