The effect of metal powders on oil component composition

Abstract

The relevance of the work is caused by the need for manufacturing new materials for petroleum processing based on metal-containing powders. The main aim of the study: To estimate the impact of metal-containing powders on oil chemical composition when being processed with the materials based on such powders. The methods used in the study: elemental analysis, FTIR spectra, proton magnetic resonance spectroscopy, chromate-mass-spectrometry. The results: it was found out that entering the powders into oil system results in increase in the total content of resinous-asphaltenic materials, in which the proportion of asphaltenes increases and the proportion of resins decreases. It is distinguished, that the presence of powders in the system results in growth of aromatic structures, carbonyl functional groups in oils and resinous-asphaltenic materials. All mentioned alterations are more evident for the oil treated with iron powder modified by nickel and cobalt ions. The same set of compounds is identified in the composition of heteroatomic compounds of the tested samples. A double*folded reduction of dibenzothiophene derivatives is typical for the oil treated with iron powder modified by nickel and cobalt ions. This may be due to chemisorption of heteroorganic compounds on the surface of the powders and the formation of complex compounds between oil organic components and metals contained in the powders.

Keywords

• petroleum
• hydrocarbons
• geteroorganic compounds
• metallic powder