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

Química Nova

PETROBRAS, Paulínia¹  Winter, Alessandra¹  Koroishi, Erika Tomie¹  Henriques, Claudete Bernardo¹  Universidade Estadual de Campinas, Campinas, Brasil¹  Bueno, Maria Izabel Maretti Silveira¹  Universidade Estadual de Campinas, Campinas¹  Maciel Filho, Rubens¹ 

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 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.

【 授权许可】

Unknown