Browsing by Author "Fuch, Ulyana"

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    Dispersion cooligomerisation of mixture of C9 fraction unsaturated hydrocarbons
    (Lviv Polytechnic Publishing House, 2015) Orobchuk, Oksana; Fuch, Ulyana; Subtelnyy, Roman; Dzinyak, Bohdan; Lviv Polytechnic National University
    Improving the technology for producing cooligomers (syntheticlow molecular petroleum resins), which are obtained from chaep petrochemical raw materials – hydrocarbon fractions of liquid by-products of pyrolysis (LBPP) or cracking of oil, refining products or gas was discussed in the paper. The imperfections of industrial methods of initiated oligomerization are high reaction temperature , high reaction time, complexity of the selection of target products, high enough color. З метою усунення недоліків, властивих виробничим процесам, запропоновано проводити процес дисперсійної коолігомеризації To eliminate the shortcomings inherent in the production process to carry out the process of dispersion oligomerization is proposed. A technological two-stages scheme of process of cooligomers obtaining by dispersion methods with next solution cooligomerization of unreacted hydrocarbons of C9 fraction has been designed. Results are of practical interest in refining by-products of pyrolysis of diesel fuel.
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    The effect of surface tension of dispersion medium on the process of emulsion cooligomerization of С9 fraction
    (Видавництво Львівської політехніки, 2013) Fuch, Ulyana; Subtelnyy, Roman; Guminilovych, Liliya; Maresh, Zoryana
    This publication presents the results of research of emulsion cooligomerization of mixture of unsaturated hydrocarbons of C9 fraction from liquid products after diesel pyrolysis. This mixture of hydrocarbons is a by-product of the olefins production. This is one of the possible options to reduce the process temperature and duration of reaction, and hence energy consumption. The effect of surface tension on the process was investigated. The dependence of then concentration of emulsifier E-30 on the surface tension of different dispersive media is shown. Optimal critical concentration of micelle formation and the best dispersion medium for the process are determined. These results are of practical interest in refining technology of diesel fuel pyrolysis by-products.