Abstract
The purpose of the article is to evaluate physical and chemical properties of mixtures based on ricinic oil and bioethanol, followed by determining the optimal concentrations of elements and the processing method. The study used methods for calculating the physical and chemical parameters of complex multicomponent mixtures with subsequent experimental verification of the accepted assumptions and hypotheses validity. The results of the study showed that heat treatment of ricinic oil by heating up to 330 °C allows for a chemical reaction of modification of ricinic oil (dehydration and splitting) in order to obtain products suitable for mixing with petroleum, and thanks to additional ultrasound treatment, it is possible to provide a higher degree of dispersion of emulsified products and increase the shelf life. The presented analytical method for evaluating and optimizing the physical and chemical properties of mixtures allows for preliminary optimization of their composition and excluding unsuitable mixtures for further research. Laboratory studies aimed at determining physical and chemical parameters of mixtures confirm the results of theoretical studies and according to the results, mixtures with a content of biological components of no more than 60% are identified, which correspond to the indicators of diesel fuel and are recommended for use.
Highlights
As a result of consideration of alternative fuels, from the point of view of economic and environmental feasibility, diesel composite fuel can be considered as the most promising for enterprises
As a result of processing castor-oil plant fruits by cold pressing, about 10% of the oil remains in the residual meal, which can be isolated by processing the meal using extraction technology or processing the fruit by hot pressing to obtain technical ricinic oil with the possibility of using it as a raw material for obtaining paint and varnish materials, as well as diesel composite fuel
The research program was aimed at testing the possibility of using diesel composite fuel containing biological and mineral components with different concentrations based on ricinic oil and bioethanol in terms of physical and chemical properties
Summary
As a result of consideration of alternative fuels, from the point of view of economic and environmental feasibility, diesel composite fuel can be considered as the most promising for enterprises. As an additive to diesel fuel, oils of acclimatized crops that can be cultivated on the territory of the Russian Federation can be used, high-oilseed crops with high germination and yield such as rapeseed and castor-oil plant can be distinguished. These crops, in addition to obtaining oil from them, can be used in agriculture as cattle feed. As a result of processing castor-oil plant fruits by cold pressing, about 10% of the oil remains in the residual meal, which can be isolated by processing the meal using extraction technology or processing the fruit by hot pressing to obtain technical ricinic oil with the possibility of using it as a raw material for obtaining paint and varnish materials, as well as diesel composite fuel
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