The Numerical Analysis Of The Flow And
Separation Efficiency Of A Two-phase
Horizontal Oil-gas Separator With An
Inlet Diverter And Perforated Plates
Author(s)
A. Efendioglu, J. Mendez & H. Turkoglu
Abstract
Two-phase horizontal gravity separators are widely used in the petroleum
industry. Design of these separators are based on empirical correlations and the
design approach is described by the international standard API12J (American
Petroleum Institute). Other literature provides different design approaches for
defining the length and diameter of separator. However, there is no clear
described method to determine the position of diverter neither in literature nor in
API standards.
In this study, the main sizes of a separator were determined for a specific oilgas
mixture using the empirical correlations from API and literature. To analyze
the effects of the position of the diverter and perforated plates on the separation
efficiency; two-phase flow simulations were conducted using CFD software
ANSYS CFX. The CFD simulations were carried out for two different diverter
plate distances from the inlet. The diverter plate was located 100 mm and
170 mm from the inlet. Additionally, simulation was also performed with
perforated baffle plates when the diverter plate is positioned 170 mm from the
inlet. To estimate the effects of these different configurations on separation
efficiency, the CFD simulations results were compared.
It has been observed that perforated plates and position of the inlet diverter
affect the separation efficiency. When the inlet diverter is located 100 mm from
the inlet, the separation efficiency of 98.5% is obtained. When the inlet diverter
is located at a distance 170 mm from the inlet, the separation efficiency increases
Keywords
oil-gas separator, two phase flow, CFD, API 12J
Related Book
Other papers in this volume
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