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Typical vapor–liquid separator In chemical engineering , the Souders–Brown equation (named after Mott Souders and George Granger Brown [ 1 ] [ 2 ] ) has been a tool for obtaining the maximum allowable vapor velocity in vapor–liquid separation vessels (variously called flash drums , knockout drums , knockout pots , compressor suction drums ...
Vertical separators are generally used when the gas-liquid ratio is high or gas volumes are high. Horizontal separators are used where large volumes of liquid are involved. [5] A vapor-liquid separator may operate as a 3-phase separator, with two immiscible liquid phases of different densities. For example natural gas (vapor), water and oil ...
The gas–liquid separation section of the separator is determined by the maximum removal droplet size using the Souders–Brown equation with an appropriate K factor. The oil-water separation section is held for a retention time that is provided by laboratory test data, pilot plant operating procedure, or operating experience.
The typical basic scheme for supersonic separation is an arrangement where the feed gas is pre-cooled in a heat exchanger by the dry stream of the separator unit. The liquid phase from the supersonic separator goes into a 2-phase or 3-phase separator, where the slip gas is separated from water and/or from liquid hydrocarbons. The gaseous phase ...
Liquefaction of gases is physical conversion of a gas into a liquid state (condensation). The liquefaction of gases is a complicated process that uses various compressions and expansions to achieve high pressures and very low temperatures, using, for example, turboexpanders .
Gas separation can refer to any of a number of techniques used to separate gases, either to give multiple products or to purify a single product.
The liquid stream from the gas–liquid separator flows through a valve and undergoes a throttling expansion from an absolute pressure of 62 bar to 21 bar (6.2 to 2.1 MPa), which is an isenthalpic process (i.e., a constant-enthalpy process) that results in lowering the temperature of the stream from about −51 °C to about −81 °C as the ...
Artificial lift is the use of artificial means to increase the flow of liquids, such as crude oil or water, from a production well. Generally this is achieved by the use of a mechanical device inside the well (known as pump or velocity string) or by decreasing the weight of the hydrostatic column by injecting gas into the liquid some distance down the well.