ТЕХНОЛОГИЯ ПЕРЕРАБОТКИ НЕФТЕШЛАМА

Abstract

This paper compares thermal, chemical, biological and physical approaches to the disposal and recycling of oil sludges. The advantages and disadvantages of these methods are discussed. The conducted comparative analysis has shown that, from the economic and environmental standpoints, the physical approach is best suited for oil sludge recycling at industrial enterprises. A new device - a three-phase decanter - is proposed for the recycling of oil sludge. The decanter is a horizontally-placed centrifuge with a cylinder-conical bowl having a solid outer jacket for a continuous separation of solid particles from suspensions. At the device outlet, oil product samples are shown to contain less than 2% of water and 1% of mechanical impurities, which values conforms to generally accepted standards. The decanter allows oil products to be extracted from oil sludge for subsequent use. It is concluded that the proposed device can be applied by oil production companies to earn additional profit from oil sludge recycling, at the same time as reducing the amount of harmful emissions into the atmosphere.