At oil refineries, during the processes of oil fractionation, reforming and hydrotreating of raw materials, equipment is exposed to corrosion and deposits of ammonium chlorides due to the presence of hydrogen chloride. Experts agree that organochlorine compounds have both a native nature and can be brought in during oil production operations. The stages of preparing oil to commercial quality in fields with washing of salts and water-alkaline washing of oil at oil refineries are not capable of purifying oil from organochlorine compounds. Literary sources propose methods for purifying oil from organochlorine compounds, both through reagent treatment of oil and using technological solutions. However, so far none of the producing companies and oil refineries has introduced effective methods for purifying oil. In reality, the reduction of organochlorine compounds in oil depends on the control of preventing their entry into the stages of oil production and transportation. In this regard, oil producing enterprises have mastered methods for monitoring organochlorine compounds in oil and the chemical reagents used. This article presents the results of purifying oil from organochlorine compounds using a chemical reagent synthesized based on an alkylphenol derivative. A technological scheme for carrying out the process of complex oil purification is proposed, which can be implemented in both stationary and mobile versions and integrated into the existing infrastructure of an oil treatment plant.
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