Naphthenic acids in petroleum

Quimica nova

Geller, Ana Maria¹  Campos, Maria Cecília Vaz de¹  Damasceno, Flaviana Cardoso²  Caramão, Elina Bastos²  Gruber, Liliane Dailei Almeida²  Jacques, Rosângela Assis² 

[1] Instituto Federal Sul-rio-grandense, Camaquã, Brasil;Universidade Federal do Rio Grande do Sul, Porto Alegre, Brasil

关键词: petrochemicals samples;    naphthenic acids;    characterization of the NA.;   

DOI  :  10.1590/S0100-40422012000700025

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

Brazilian petroleum is known by its high acidity due to the presence of acidic constituents, especially naphthenic acids (NA). The total characterization of the NA in petrochemical samples has been receiving special attention in research and comprises an analytical challenge, mainly due to the complexity of their mixtures. Gas chromatography with mass detector (GC/MS) is the technique of analysis more used, but recently comprehensive two-dimensional gas chromatography (GC × GC) has been used, due to its high resolution, peak capacity and sensitivity. The goal of this article is to discuss the techniques for sample preparation and analysis of NA in petroleum.

【 授权许可】

CC BY