Elaboration of Distillation Curves of Liquid Hydrocarbons Belonging to the Neiva Sub-Basin: Method ASTM D86-04

Abstract

In this article, it is presented the distillation curves elaborated through the analysis to ten samples of crude oil, belonging to Neiva Sub-Basin through experimental research. Ibis expenence is canied out in a manual distillation equipment Koehler model G-142-K45000 to which the manual operations were performed according to the standardized method ASTM D86-04. To obtain the crudes characterization according to their basis, the data obtained experimentally, are corrected, initially by pressure, losses and by thermal cracking, this last parameter, according to S.T. Hadden(1990) (cited by Perry. 1997), later on, the expressions proposed by Watson (1935), Whitson (1980) and the calculation of the gravity constant - VLseoslty are used to obtain the characterization according to its basin of the studied samples; it is also provided a detailed report with the obtained results by means of the analysis of the distillation curves of the fractions C7+ as volumetric average temperature, weight average temperature, cubic average temperature, molar average temperature, specific gravity, characterization factor, molecular weight and pseudocritical properties, by which we would like to classify the samples of the fields A and B, based nixed: naphthenic-paraffinic, naphthenic with predominant ínfluence, and samples of the fields C, D and E, based nixed: Paraffin-naphthenic, with predominant ínfluence paraffinic and field sample F: Aromatic with naphthenic-naphthenic predominant ínfluence.