Logical-Information Model of Energy-Saving Production of Organic Sulfur Compounds from Low-Molecular Sulfur Waste Fuel Oil

Valery Meshalkin,Nadezhda Berberova,Foat Ismagilov,Elena Shinkar,Andrey Okhlobystin,Nadezhda Pivovarova

doi:10.3390/en13205286

Abstract

A logical-informational model of energy resource-efficient chemical technology for the utilization of hydrogen sulfide and low molecular alkanethiols, which are toxic and difficult to remove sulfur components of residual fuel (fuel oil), is proposed. Based on the IDEF1 methodology and existing knowledge about the technological processes of the demercaptanization of various hydrocarbon raw materials (oils, gas condensates), a scheme for the production of organic sulfur compounds from sulfur waste extracted from fuel oil has been modeled. For a sufficiently complete removal of hydrogen sulfide and low molecular weight alkanethiols, energy- and resource-saving stages of the technological process have been developed, which are implemented by ultrasonic and/or magnetic treatment of fuel oil. It is proposed to use the combined action of two alternative methods of processing fuel oil to increase the efficiency of cleaning fuel oil from sulfur components. For the first time, an approach has been developed to utilize unwanted sulfuric impurities contained in fuel oil by involving electric and microwave synthesis in green technological processes, to obtain practically useful organic sulfur compounds with biological activity. It is shown that the use of one-electron oxidant thiols and hydrogen sulfide in organic media leads to the synthesis of organic disulfides and elemental sulfur. Indirect (with the use of mediators) electrosynthesis contributes to the cyclic conduct of the technological process, an increase in efficiency and a decrease in energy consumption compared to the direct (on electrodes) initiation of sulfur components.

Highlights

A significant increase in environmental pollution, negative climate change due to the disruption of the heat balance in the atmosphere and the unstable situation in the global energy market form number of serious factors that give rise to the need to improve energy efficiency in the global economy
The advantage of the proposed approach to the disposal of toxic waste is the directed electric and microwave synthesis of practically useful organic sulfur compounds based on sulfur components extracted from fuel oil
The physicochemical and technological foundations were developed for the environmentally safe and efficient production of organic sulfur compounds based on the unwanted sulfur impurities contained in fuel oil

Summary

Introduction

A significant increase in environmental pollution, negative climate change due to the disruption of the heat balance in the atmosphere and the unstable situation in the global energy market form number of serious factors that give rise to the need to improve energy efficiency in the global economy. The increase in energy consumption is directly related to the growth in the development of non-renewable energy sources, and, first of all, to the consumption of hydrocarbon raw materials, which constitute the fuel basis of modern energy, despite the limited reserves. It follows that, along with the introduction of energy-saving technologies, an important direction for solving energy problems is the use of alternative sources of fossil fuels, as well as renewable energy sources (solar, geothermal, wind, biomass and ocean energy) [3]

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