Development of Energy-resource-efficient Equipment and Technologies of Environmentally Safe Microwave Processing of Oil Sludges

Rail Idiatovich Saitov,Eldar Rinatovich Abdeev,Rinat Gazizyanovich Abdeev,Minikhan Abuzarovich Fatykhov,Aigul Faritovna Khasanova

doi:10.18502/kms.v6i1.8137

Abstract

   the results of the analysis of scientific papers and patent elaboration of the existing methods and technologies for the separation of water-oil emulsions made it possible to implement energy-efficient processes of microwave exposure to hydrocarbon- containing media. Based on the analysis of existing mathematical models of the direct and reverse oil-water emulsions structure and evaluation of the behavior of oil-water emulsions in the microwave field, a mathematical model of the interaction of microwave energy with oil-water emulsions 1 has been developed. The use of this model allows for the identification of the most effective parameters of the microwave exposure for phase separation with different compositions and dielectric parameters of emulsions. Computational experiments have been carried out to identify the dependence of the binding energy of water molecules and different grades of oil on the physicochemical properties of the emulsion and the technological factors of the sludge processing. An experimental installation of microwave sludge processing has been developed and manufactured, which allows determining the adequacy of the developed model. Keywords: microwave processing, oil sludge, phase separation  

Highlights

In the oil industry, up to 25 million cubic meters of solid and liquid wastes are generated annually, which are accumulated in 5000 drilling sludge barns
Used the most common methods for the processing of oil sludge, such as chemical, biological, thermal, physico-chemical, filtering and settling, centrifugation with inefficiency and high cost, have a number of other disadvantages, the main of which are the burning of “useful” hydrocarbons, the formation of large volumes carbon dioxide and other toxic gases, low productivity, the inability to use at low temperatures, inapplicability to hard to stratify high wild oil sludge
They cannot be used in the conditions of oil refineries, which are one of the sources of oil sludge, the processing of which and the

Summary

Introduction

Up to 25 million cubic meters of solid and liquid wastes are generated annually, which are accumulated in 5000 drilling sludge barns. Used the most common methods for the processing of oil sludge, such as chemical, biological, thermal, physico-chemical, filtering and settling, centrifugation with inefficiency and high cost, have a number of other disadvantages, the main of which are the burning of “useful” hydrocarbons, the formation of large volumes carbon dioxide and other toxic gases, low productivity, the inability to use at low temperatures, inapplicability to hard to stratify high wild oil sludge. The parameters of microwave processing in the last stage have to be studied experimentally, but the frequency, power of the generator, and exposure time must be determined by at least rough calculations, because, firstly, there are several hundred varieties of oil and oil sludge, and secondly, microwave generators are produced only for several fixed frequencies, the most accessible of which is 2.4 GHz, which, by the way, explains their sweeping application in experiments In this case, the separation of the phases of the emulsion occurs mainly due to heating.

Objectives

Conclusion