Computational Analysis of Effects of Location of the Diverter Plate and Inlet Velocity on the Efficiency of Two-Phase Flow Separator

Year 2019, , 575 - 581, 01.09.2019

Sedat Yayla , Karwan Kamal Seyfettin Bayraktar

https://doi.org/10.2339/politeknik.567055

Cited By: 1

Abstract

Two-phase horizontal gravity separators are generally
used in the petroleum industry for gas and liquid separation. There are several
studies in the relevant literature that reports various methods to determine
the optimum diameter and length of the separator. Although the diverter plate
is used to increase the separation speed, there is not any exact approach for
specifying the appropriate location of the diverter plate on the inlet pipe. In
the present study, the main volume of the separator is defined for a particular
amount of mixture of oil and gas. Effects of the location of the diverter plate
and inlet velocity on the separation efficiency are investigated for three
locations of the diverter plate (100 mm, 150 mm, 200 mm) and four different inlet
velocities (0,25 m/s, 0,5 m/s, 0,75 m/s, 1 m/s) by means of computational fluid
dynamics (CFD) method. Two-phase, three-dimensional (3D) and fully turbulent
flow simulations reveal that the highest separation efficiency is obtained as
99% when the straight diverter plate is 200 mm far away from the top inlet and
the inlet velocity is 0,25 m/s.

Keywords

Oil gas separation, two-phase flow, horizontal separator

References

• [1] Pourahmadi Laleh A., Svrcek W. Y., and Monnery, W. D. ‘Design criteria for oilfield separators improved by computational fluid dynamics’, Chemical Engineering & Technology, 35: 2, 323-333, (2012).
• [2] Fakhru’l-Razi A., Pendashteh A., Abdullah L. C., Biak D. R. A., Madaeni S. S., and Abidin, Z. Z., ‘Review of technologies for oil and gas produced water treatment’, Journal of Hazardous Materials, 170: 2, 530-551, (2009).
• [3] Loh W.L., Premanadhan V.K. ‘Experimental investigation of viscous oil-water flows in pipeline’, Journal of Petroleum Science and Engineering, 147: 87-97, (2016).
• [4] Burlutskii E. ‘CFD study of oil-in-water two-phase flow in horizontal and vertical pipes’, Journal of Petroleum Science and Engineering, 162: 524-531, (2018).
• [5] Shi J., Gourma M., Yeung H. ‘CFD simulation of horizontal oil-water flow with matched density and medium viscosity ratio in different flow regimes’, Journal of Petroleum Science and Engineering, 151: 373-383, (2017).
• [6] Abdolhamid H. R., Al-Baghdadi M. A. S., and Hinshiri, A. K. E. ‘Evaluation of bio-surfactants enhancement on bioremediation process efficiency for crude oil contaminated soil at oilfield’, Strategic Study. Ovidius Univ. Ann. Chem., 20: 25-30, (2009).
• [7] Song X., Yang Y., Zhang T., Xiong K., Wang Z. ‘Studies on water carrying of diesel oil in upward inclined pipes with different inclination angle’, Journal of Petroleum Science and Engineering, 157: 780-792, (2017).
• [8] Zhongyia W., Changlong Y., Jia H., Yunlianga Y. ‘The analysis of internal flow field in oil-gas separator’, Procedia Engineering, 15: 4337-4341, (2011).
• [9] Thi Lea T., Ich Ngoa S., Lima Y., Park C., Leeb B., Kim B., Lim D. ‘Three-phase Eulerian computational fluid dynamics of air-water–oil separator under off-shore operation’, Journal of Petroleum Science and Engineering, 171: 731-747, (2018).
• [10] Jia M., Wang D., Yana C., Song J., Han Q., Chen F., Wei Y. ‘Analysis of the pressure fluctuation in the flow field of a large-scale cyclone separator’, Powder Technology, 343: 49-57, (2019).
• [11] Picchi D., Strazza D., Demori M., Ferrari V., Poesio V. ‘An experimental investigation and two-fluid model validation for dilute viscous oil in water dispersed pipe flow’, Experimental Thermal and Fluid Science, 60: 28-34, (2015).
• [12] Stewart M., and Arnold K. ‘Emulsions and oil treating equipment: selection, sizing, and troubleshooting’, Gulf Professional Publishing, (2008).
• [13] Pouraria H., KwanSeo J., Kee Paik J. ‘Numerical modeling of two-phase oil–water flow patterns in asubsea pipeline’, Ocean Engineering, 115: 135-148, (2016).
• [14] Thi Lea T., Ich Ngoa S., Lima Y., Park C., Lee B., Kim B., Lim D. ‘Effect of simultaneous three-angular motion on the performance of an air-water–oil separator under offshore operation’, Ocean Engineering, 171: 469-484, (2019).
• [15] Pourahmadi Laleh A., Svrcek W.Y., Monnery W.D., ‘Design criteria for oilfield separators ımproved by computational fluid dynamics’, Chemical Engineering Technology, 35(2): 323-333, (2012).
• [16] Laleh P. A., Svrcek W. Y., and Monnery W. D., ‘Computational fluid dynamics simulation of pilot‐plant‐scale two‐phase separators’, Chemical Engineering & Technology, 34(2): 296-306, (2011).
• [17] Ghaleni M. M., and MortazaZivdar, M., ‘Hydrodynamic analysis of two-phase separator by computational fluid dynamic (CFD)’, The 6th International Conference on Advanced Computational and Experimenting, Istanbul, Turkey, (1-4 July 2012).
• [18] Dehkordi P.B., Colombo L.P.M., Guilizzoni M., Giorgio Sotgia G. ‘CFD simulation with experimental validation of oil-water core-annular flows through Venturi and Nozzle flow meters’, Journal of Petroleum Science and Engineering, 149: 540-552, (2017).
• [19] Fluent, A. 12.0 ‘Theory Guide. Ansys Inc, 5.’ (2009).
• [20] Wilkinson D., Waldie B., Nor M. M., and Lee H. Y., ‘Baffle plate configurations to enhance separation in horizontal primary separators’, Chemical Engineering Journal, 77(3): 221-226, (2000).
• [21] Efendioglu A., Mendez, J., and Turkoglu, H. ‘The numerical analysis of the flow and separation efficiency of a two-phase horizontal oil-gas separator with an inlet diverter and perforated plates’, Advances in Fluid Mechanics, 10: 133, (2014).
• [22] Abdulkadir M., Hernandez-Perez V., ‘The effect of mixture velocity and droplet diameter on oil-water separator using computational fluid dynamics (CFD)’, world academy of science. Engineering and technology’, International Journal of Chemical, Molecular, Nuclear, Materials and Metallurgical Engineering, 4: 1 (2010).