Petroleum products interface volume reduction in back-to-back batching

##plugins.themes.bootstrap3.article.main##

##plugins.themes.bootstrap3.article.sidebar##

Published Aug 31, 2019
Nikita N. Golunov

Abstract

The paper deals with interface mixing in back-to-back batching light petroleum products along the same pipeline. It is known that when one petroleum product is pumped back-to-back in the line without any separating device, a mixture is formed in the interface area of consistently moving batches, which is generally a substandard product. Therefore, the issue of reducing the substandard product volume is an important task that attracts an attention of scientists for many years. Since it is known that the volume of the resulting mixture depends on the intensity of convection and turbulent diffusion processes in the fluid flow in the line, the hydraulic drag reduction, at least in the contact area of petroleum products, can reduce the interface volume. It is shown that drag-reducing agents, usually injected into the flow of the transported liquid, can also be successfully used to reduce the volume of the substandard mixture. Formulas are given for calculating the hydraulic drag coefficient of a liquid with a drag-reducing agent depending on the concentration of this additive, the Reynolds number and the relative equivalent roughness of the inner pipe wall. The main aspects of the drag-reducing agent injection to reduce the petroleum products interface mixing in back-to-back batching are presented.

How to Cite

1.
Golunov NN. Petroleum products interface volume reduction in back-to-back batching. PST [Internet]. 2019Aug.31 [cited 2019Nov.12];3(1):46-1. Available from: https://pipeline-science.com/index.php/PST/article/view/101

Downloads

Download data is not yet available.
Abstract 6 | PDF file Downloads 7

##plugins.themes.bootstrap3.article.details##

Keywords

pipeline, petroleum products, back-to-back batching, petroleum products mixture, axial mixing coefficient, interface volume, hydraulic drag coefficient, drag-reducing agent, reduction of the interface volume

References
[1] Taylor G. Dispersion of soluble matter in solvent flowing slowly through a tube // Proceedings of the Royal Society A: Mathematical and Physical Sciences. 1953. Vol. 219. № 1137. P. 186–203.
[2] Taylor G. The dispersion of matter in turbulent flow through a pipe. // Proceedings of the Royal Society A: Mathematical and Physical Sciences. 1954. Vol. 223. № 1155. P. 447–468.
[3] Maron V.I. Nonstationary Substance Transfer in a Pipeline Fluid Flow [dissertation]. Moscow: Gubkin Moscow Institute of Petrochemical and Gas Industry named after Ivan Gubkin; 1974. 389 p. (In Russ.)
[4] Toms B. Some observations on the flow of linear polymer solutions through straight tubes at large Reynolds numbers. // Proceedings of the 1st International Congress on Rheology. Amsterdam: North Holland Publ.; 1948. Vol. 2. P .135–141.
[5] Ishmukhametov I.T., Isaev S.L., Lurie M.V., Makarov S.P. Petroleum products pipeline transport. Moscow: Oil and Gas Publ.; 1999. 300 p. (In Russ.)
[6] Lurie M.V. Mathematical modeling of processes in pipeline transport of oil, petroleum products and gas. Textbook. – M.: Federal state unitary enterprise Publishing house “Oil and gas” at Gubkin Russian state University of oil and gas, 2003, p. 103 (In Russ.)
[7] Lurie M.V., Golunov N.N. Application of bench test results of small drag-reducing additives for hydraulic design of industrial analysis // Science and technology of pipeline transportation of oil and petroleum products. 2016. #4 (24). p. 32–37. (In Russ.)
[8] Bai Shi-I. Turbulent Flow of Fluids and Gases. – Moscow: Foreign Literature Publishing House; 1962. 344 p. (In Russ.)
[9] Patent 2256119, Russian Federation, MPC7 F 17 D 1/14. Method of multi-grade petroleum products’ back-to-back batching. // Lurie M. V. Golunov, N. N. ; Applicant and patent holder – Gubkin Russian state University of oil and gas #2003135890/06; appl. 10.12.2003; publ. 10.07.2005, Bull. No. 19. – 5 p. (In Russ.)
Section
Original Work