Engine performance and emission of biodiesel fuel prepared from different Ukrainian natural oils

Patrylak, Lyubov; Okhrimenko, M. V.; Левтеров, А. М.; Konovalov, S. V.; Yakovenko, A. V.; Zubenko, Stepan

doi:10.1007/s11696-019-00755-4

Cited by 3 publications

References 13 publications

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Influence on Piston Engine Performance by the Biocomponents and Different Types of Nano Materials

Левтеров¹,

Levterov²

2021

ICE

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The obviousness of the finiteness of the planet's energy resources makes us constantly concern ourselves with the search for new energy sources and their rational use. The main energy converter is the internal combustion engine and contrary to forecasts, continues to occupy a leading position. Therefore, the issues of improving its working processes, reducing the consumption of mineral fuel, the possibility of using all kinds of alternative fuels and improving the quality of motor fuel continue to be considered throughout the energy world. On the agenda is the dissemination of advances in nanotechnology to the propulsion industry. Improvement of engine performance when using fuel dispersed with nanomaterials of various types is beyond doubt and is used both for pure petroleum and biodiesel and for their mixtures. In the article, against the background of the analysis of studies on the use of alternative biofuels and the introduction of the practice of introducing nanoparticles into petroleum fuel and biofuels as a potential energy carrier to improve the characteristics of toxicity and engine performance, the results of studies of a number of biofuels have been presented. Presented are the results of a study of the performance of a 1Ch 8.5 / 11 diesel engine carried out in the laboratory of IPMash NAS of Ukraine when operating on diesel fuel dispersed with carbon spheroidal nanoadditives of various concentrations, and some comparative results of studies of the indicators of diesel engines with direct injection 2Ch 10.5 / 12 and 4ChN 7.9 / 7.5 ALH, operating on standard and mixed fuels with biocomponents synthesized from rapeseed, sunflower, mustard and corn oils. The thermophysical properties of the fuel (heat of combustion, thermal conductivity, heat capacity, density, kinematic viscosity, convective heat transfer, ignition temperature, cetane number, etc.) undergo significant changes when nanoparticles are introduced into it. The optimal amount of metal nanoparticles, metal oxides, carbon tubes, graphene in mineral, biodiesel or mixed fuel promotes more complete combustion, significantly improves engine performance, and reduces harmful emissions.

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Influence on Piston Engine Performance by the Biocomponents and Different Types of Nano Materials

Левтеров¹,

Levterov²

2021

ICE

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Fatty Acid Ethyl Esters as Biodiesel Fuel: Product Quality and Efficiency of Various Purification Techniques

Patrylak,

Konovalov,

Zubenko

et al. 2024

Preprint

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Alkaline transesterification of sunflower oil triglycerides by butanol-1 over potassium hydroxide and alkoxides catalysts

2019

VKhKhT

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Butyl esters of fatty acids are used in engineering and are considered as potential biodiesel fuel. The difficulty of separation of products, obtaining by alkaline transesterification of oils, causes the pure attention of researchers to this one-stage of synthesis of butyl esters. The difficulty of separating the products obtained by alkaline transesterification of vegetable oils leads to the limited attention of researchers to this one-step route of the synthesis of butyl esters. The aim of this work was to compare the characteristics of the alkaline transesterification of sunflower oil on hydroxide and water-free alkoxide catalysts and to interpret the observed features from the point of view of reaction mechanism. Transesterification was carried out at the temperature of 20 and 40 0 C using potassium butoxide, methoxide and hydroxide. The highest equilibrium yield of butyl esters (up to 96%) was achieved when potassium butoxide was used, whereas it did not exceed 85% for the case of potassium hydroxide. The third order of reaction was determined. The reaction rate constants and apparent activation energies were calculated. The activation energies were found to be almost equal for both used alkoxides (30.5 kJ mol-1). The features of the formation of glycerol layer were studied; this layer appeared during transesterification using potassium butoxide. Alkaline solutions of catalysts in butanol were studied by IRspectroscopy. The degeneracy of valence vibrations of OH-groups in the region of about 3300 cm-1 was observed with as an increase in the potassium butoxide concentration. This may be due to the formation of associates of butanol and butoxide. The fundamental differences between reaction stages of methanolysis and butanolysis, caused by low dissociation degree of potassium butoxide in low polar butanol, were discussed. The ways of the formation of potassium glyceroxide and its role in the further course of the process were considered.

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Engine performance and emission of biodiesel fuel prepared from different Ukrainian natural oils

Cited by 3 publications

References 13 publications

Influence on Piston Engine Performance by the Biocomponents and Different Types of Nano Materials

Influence on Piston Engine Performance by the Biocomponents and Different Types of Nano Materials

Fatty Acid Ethyl Esters as Biodiesel Fuel: Product Quality and Efficiency of Various Purification Techniques

Alkaline transesterification of sunflower oil triglycerides by butanol-1 over potassium hydroxide and alkoxides catalysts

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