Moscow, Russia
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Chekmenev V.G.,Kedr 89 Company | Lebedev Y.N.,Kedr 89 Company | Klochkov I.N.,Kedr 89 Company
Chemistry and Technology of Fuels and Oils | Year: 2010

Computer modeling of precipitation processes by the finite element method was conducted to study thin-layer separation of two immiscible liquids with nozzle made of sloping parallel corrugated or flat plates. The analytical and graphic dependences obtained can be used in designing plate coalescers for three-phase separators. © 2010 Springer Science+Business Media, Inc.


Chekmenev V.G.,Kedr 89 Company | Khanin Y.D.,Kedr 89 Company
Chemistry and Technology of Fuels and Oils | Year: 2010

The output and composition of decomposition gases were calculated in atmospheric resid heating furnaces before vacuum distillation with the KREKING program developed at Kedr-89 Co., which provides for calculating processes of thermal decomposition of feedstock in the coils of reaction and heating furnaces. The results obtained were compared with the published experimental data and the results of calculation with an empirical equation used in the PRO II modeling system. Their poor agreement with the experimental values of the output of decomposition gases and concentrations of C 3-C 5 hydrocarbons in them was demonstrated. © 2010 Springer Science+Business Media, Inc.


Lebedev Y.N.,Kedr 89 Co | Ratovskii Y.Y.,Kedr 89 Co | Karmanov E.V.,Kedr 89 Co | Zaitseva T.M.,Kedr 89 Co | Pod'Yablonskaya T.V.,Kedr 89 Co
Chemistry and Technology of Fuels and Oils | Year: 2010

The problem of obtaining motor fuels with improved environmental characteristics corresponding to Euro-4 and Euro-5 standards is examined. The experience of Kedr-89 Scientific-Production Company in revamping of naphtha cut isomerization units is presented. The operating parameters of deisohexanizers developed by Kedr-89 Co. are reported. The possibility of including depentanization and deisopentanization towers in the network of isomerization units is considered. © 2010 Springer Science+Business Media, Inc.


Chekmenev V.G.,Kedr 89 Co. | Lebedev Y.N.,Kedr 89 Co. | Klochkov I.N.,Kedr 89 Co.
Chemistry and Technology of Fuels and Oils | Year: 2010

The operation of gas-liquid separators was investigated by modeling with the finite element method (CFD) in the Star CD software package. A number of recommendations were developed for improving the design of the separators: positioning of the drip pan, mutual position of the feedstock inlet choke, drip pan, outlet choke, etc. © 2010 Springer Science+Business Media, Inc.


Lebedev Y.N.,Kedr 89 Co | Chekmenev V.G.,Kedr 89 Co | Danilov D.Y.,Kedr 89 Co
Chemistry and Technology of Fuels and Oils | Year: 2010

The results of hydraulic tests of new centrifugal trays with repeated recirculation of liquid in the centrifugal elements in the water-air system. Curves were obtained for calculating the amount of liquid circulating in the centrifugal elements and the pressure drop in dry and reflux trays. © 2010 Springer Science+Business Media, Inc.


Ratovskii Y.Y.,Kedr 89 Company
Chemistry and Technology of Fuels and Oils | Year: 2010

The basic trends in improving vacuum distillation of atmospheric resid are examined. The effect of the fundamental process parameters on the exhaustiveness of refining the feedstock is demonstrated. © 2010 Springer Science+Business Media, Inc.

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