The Use of Benzene Oxidation Product as a Component of an Inhibitory Additive for Paraffinic and Highly Paraffinic Petroleum
A. V. LESHCHIK, I. V. PROZOROVA, A. YU. RYABOV, A. N. OCHERED’KO, N. V. YUDINA, S. V. KUDRYASHOV
Institute of Petroleum Chemistry, Siberian Branch of the Russian Academy of Sciences, Tomsk, Russia
Keywords: inhibitory additive, inhibitors of heavy oil deposits, depressant properties, benzene oxidation, barrier discharge
Pages: 212-215
Abstract
Results of the application of benzene oxidation product (BOP), formed in barrier discharge, as an improving component of the inhibiting additive for paraffinic and highly paraffinic petroleum are presented. The proposed additive consists of a copolymer of alkyl acrylates with dodecylamine acrylate and BOP at a ratio of 15:1 wt. %. Benzene oxidation by air in a barrier discharge proceeds predominantly to phenol (~77.3 wt. %), diatomic phenols, and an insignificant amount of macromolecular compounds. The effect of the additive (in combination with BOP) in the amount of 0.03-0.05 wt. was evaluated relying on changes in the rheological characteristics and freezing point of paraffinic and highly paraffinic petroleum with a high content of resins and asphaltene components. The composition containing polymer and BOP additionally reduces the amount of asphaltene-resin-paraffin deposits by 1.5-2.5 g, which gives an increase in inhibitory capacity by 10-12 %. The depression of the freezing point of petroleum is 46 ºС on average. The dynamic viscosity of petroleum under study decreases in the presence of the additive by a factor of 2.2 on average.
DOI: 10.15372/CSD2023458
EDN: NVXTEH
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