Study of the influence of the particulate in aggregation phenomenon of the asphaltenes by optical scanning spectrometry

Quimica nova

Henriques, Claudete Bernardo¹  Winter, Alessandra²  Maciel Filho, Rubens²  Koroishi, Erika Tomie³  Bueno, Maria Izabel Maretti Silveira³ 

[1] PETROBRAS, Paulínia;Universidade Estadual de Campinas, Campinas;Universidade Estadual de Campinas, Campinas, Brasil

关键词: asphaltenes;    aggregation phenomena;    separability number.;   

DOI  :  10.1590/S0100-40422011000300011

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

The processingof national petroleums causes many operational problems due to the asphalteneaggregation phenomena. To evaluate the behavior of these phenomena, a studybased on optical scan technique was carried out to understand the behavior ofpure oils and their mixtures. The evaluation according to criteria establishedby ASTM D7061-061 gives a result of asphaltene flocculation of accordingto the separability number. In this study, the aspects related to the existenceof colloidal forms of peptized asphaltenes in distinct solvents present in petroleumscan cause changes in the kinetics of asphaltene flocculation.

【 授权许可】

CC BY