Gravity Separator Fundamentals and Design (original) (raw)
Related papers
Gas/Liquids Separators: Quantifying Separation Performance - Part 2
Oil and Gas Facilities, 2013
I n this second article of a three-part series, methods for improved quantification of operating performances of the gas gravity separation, the mist extraction, and the liquid gravity separation sections of gas/liquid separators are discussed. These methods can be used for the selection and design of new separators, as well as the rating of existing separators. Part 1 of the series in August provided a general discussion of separation equipment classification, as well as existing limitations to methods used for quantifying separator performance. The main parts of a typical gas/liquid separator, vertical or horizontal, are shown in Fig. 1, including the feed pipe, inlet device, gas gravity separation section, mist extractor, and the liquid gravity separation section. Part 1 discussed the feed pipe and inlet device.
Gas/Liquids Separators-Part 2 Quantifying Separation Performance
I n this second article of a three-part series, methods for improved quantification of operating performances of the gas gravity separation, the mist extraction, and the liquid gravity separation sections of gas/liquid separators are discussed. These methods can be used for the selection and design of new separators, as well as the rating of existing separators. Part 1 of the series in August provided a general discussion of separation equipment classification, as well as existing limitations to methods used for quantifying separator performance. The main parts of a typical gas/liquid separator, vertical or horizontal, are shown in Fig. 1, including the feed pipe, inlet device, gas gravity separation section, mist extractor, and the liquid gravity separation section. Part 1 discussed the feed pipe and inlet device.
The Gravity Separation Mixture Fluid: Detailed Description of the Device and Possible Applications
Mediterranean Journal of Basic and Applied Sciences, 2022
The system Gravity Separation Mixture Fluid (GSMF) is a device designed and patented by Stefano Farnè and Vito Lavanga, described in the scientific paper “The Gravity Separation Mixture Fluid: An Innovative Method and Device to Separate the Components in a Gas, Liquid or Vapour Mixture”. GSMF allows to separate a mixture into its various components with different specific weights, exploiting the stationing of the fluid in the spaces created by each of two packs of honeycomb which, in addition to increasing the surface useful for the separation of the mixture, provides the vertical space useful for eliminate the horizontal motions that would make the gravimetric separation process vain. The flow necessary for the passage inside the device is guaranteed by inlet and outlet draining pipes from which to extract the different phases of the mixture, arranged in an arrangement for three-dimensional reverse return.
Evaluation of the efficiency of rectangular separators to collect the particles from the gas flows
IOP Conference Series: Earth and Environmental Science, 2019
Analysis of the separation devices’ operation and improvement of efficient gas mixture purification processes is relevant issue and is a great interest for the specialists of different industrial brunches. Modernization of internal devices in the cases of existing separators is the main goal in the field of increasing the efficiency of fine dispersed particles’ collection process. Design of a rectangular separator with a number of I-beams has been developed. Operation principle of the device is described. When the multiphase flow moves between the device elements, the centrifugal force appears, that ensures the coagulation of finely dispersed liquid drops, facilitating their uniform settling on the entire surface of I-beams. The advantage of these separators is noted. High values of centrifugal force are achieved at relatively low gas flow rates that allows to carry out the separation processes at low energy costs. Numerical study of the gas mixture flow through the rectangular sepa...
Development and Application of Vortex Liquid / Gas Phase Separator for Reduced Gravity Environment
In the microgravity environment experienced by space vehicles, liquid and gas do not naturally separate as on Earth. This behavior presents a problem for two-phase space systems, such as environment conditioning, waste water processing, and power systems. Furthermore, with recent renewed interest in space nuclear power systems, a microgravity Rankine cycle is attractive for thermal to electric energy conversion and would require a phase separation device. Responding to this need, researchers have conceived various methods of producing phase separation in low gravity environments. These separator types have included wicking, elbow, hydrophobic/hydrophilic, vortex, rotary fan separators, and combinations thereof. Each class of separator achieved acceptable performance for particular applications and most performed in some capacity for the space program. However, increased integration of multiphase systems requires a separator design adaptable to a variety of system operating conditions. To this end, researchers at Texas A&M University (TAMU) have developed a Microgravity Vortex Separator (MVS) capable of handling both a wide range of inlet conditions as well as changes in these conditions with a single, passive design. Currently, rotary separators are recognized as the most versatile microgravity separation technology. However, compared with passive designs, rotary separators suffer from higher power consumption, more complicated mechanical design, and higher maintenance requirements than passive separators. Furthermore, research completed over the past decade has shown the MVS more resistant to inlet flow variations and versatile in application. Most investigations were conducted as part of system integration experiments including, among others, propellant transfer, waste water processing, and fuel cell systems. Testing involved determination of hydrodynamic conditions relating to vortex stability, inlet quality effects, accumulation volume potential, and dynamic volume monitoring. In most cases, a 1.2 liter separator was found to accommodate system flow conditions. This size produced reliable phase separation for liquid flow rates from 1.8 to 9.8 liters per minute, for gas flow rates of 0.5 to 180 standard liters per minute, over the full range of quality, and with fluid inventory changes up to 0.35 liters. Moreover, an acoustic sensor, integrated into the wall of the separation chamber, allows liquid film thickness monitoring with an accuracy of 0.1 inches. Currently, application of the MVS is being extended to cabin air dehumidification and a Rankine power cycle system. Both of these projects will allow further development of the TAMU separator.
Design of Industrial Gravity Type Separators for the Hydrocarbons and Heavy Oil-Water Separations
Hydrocarbon and Heavy Oil-Water Separators are fall in major mass transfer operations and a key component of chemical process industries. They have wide applications in purification and especially in water treatment processes. Many technical papers have been written on the Hydrocarbon and Heavy Oil-Water separator design and vast amounts of information are also available in corporate process engineering design guidelines. The purpose of this work is to provide a comprehensive current design status of Hydrocarbon and Heavy Oil-Water Separators. This type of Hydrocarbon and Heavy Oil-Water Separators which is presented in this work is usually design and used for the separation of hydrocarbons produced during Fischer-Tropsch Synthesis of green diesel from synthesis gas.
Advances in Fluid Mechanics XII , 2018
Many industrial devices found in the oil and gas industries are designed using empirical correlations, such as gas-liquid vertical separators. However, the physics involved in these devices are quite complex including multiphase flows and internal devices that are not considered in the empirical approach. Therefore, important discrepancies are found in industrial fields. This research conducts a numerical study using Computational Fluid Dynamics (CFD) to assess the different empirical models used in such designs. A short review of the different models is presented and compared and computational experiments are used to evaluate the parameters of importance of these devices. In addition, statistical models are implemented to evaluate the influence of operational parameters, properties of fluids and geometric variables to the efficiency of the separator and pressure drop. To this end, a surrogate model is developed using Kriging interpolation that allows evaluation of the different combination of parameters without running each design using CFD. Preliminary results demonstrate that the standard accepted as general reference ANSI/ANSI/API-12J provides the lowest efficiency and the higher pressure drop, albeit small, compared to the other methods.
Journal of Nuclear Science and Technology, 1993
The purpose of the study is to collect data in order to make models that are applicable to calculate carryover droplets that are generated in and flow out of a steam separator. Various effective tests relevant to separation mechanisms in the separator have been conducted with a full-scale steam separator under atmospheric pressure. Separation behaviors for the top of the riser of the separator and for corrugated-separator were clarified and correlated by the experiment. Distinct patterns about the separation at the corrugated-separator. the separation of discharged droplets by gravity, and the separation of droplets by a screen dryer that is used to dry up the steam were also measured with the facility using a full-scale separator in a vessel simulating the flow area of ATR under the high-pressure and high-temperature condition for various water levels. Each separation data were correlated under the condition of maximum steam and liquid flow rates of 7 and 30.5 kg/s. respectively. Liquid droplets containing a small amount of LiOH at several positions were sampled together with steam by iso-kinetic probes. and the amount of carryover was analyzed in PPT range by the chemical analysis of condensed steam. As a result. basic data for separation mechanisms were obtained. and maximum capacity of the separator was estimated.