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Abstract
In the last decade the world has a clear desire to force the modes of operation of internal combustion engines: improving the calorific intensity, compression in the cylinders, the crankshaft rotation speed. So, medium-purified oils are increasingly replaced at the world market by highly-purified stable oils with an ultrahigh viscosity index and quality giveaway. In order to increase the competitiveness of domestic oils, in particular engine oils, two ways of improvement of technological processes have been developed. First: improved solvent cleaning processes, including the introduction of a new selective solvent N-methylpyrrolidone, to make oil with a viscosity index of 95 to 100 produced from selected crude oils; accelerated production of synthetic oils with improved properties of polyester and polysiloxane oils etc. Second: increased inclusion of hydrogenation processes with highly selective catalysts for the production of oils with a viscosity index above 100 produced from broad-grade oils. In this paper we have developed a project of a selective oil purification plant using N-methylpyrrolidone solvent. We have developed a mathematical model and use the computer simulation to calculated thematerial and heat balances of the process, main and auxiliary equipment.
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Details
1 Ufa State Petroleum Technological University, Kosmonavtov St. 1, Ufa, Russia, 450062
2 Ufa State Petroleum Technological University, Kosmonavtov St. 1, Ufa, Russia, 450062; National Research Mordovia State University, Bolshevistskaya St. 68, Saransk, Russia, 430005
3 Ufa State Petroleum Technological University, Kosmonavtov St. 1, Ufa, Russia, 450062; Institute of Petrochemistry and Catalysis of the Russian Academy of Science, Prospekt Oktyabrya St. 141, Ufa, Russia, 450075