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Electrical desalting

Electric desalting a continuous process to remove inorganic salts and other impurities from crude oil by settling out in an electrostatic field. [Pg.329]

Crude oil is pumped from storage through a steam heated exchanger and into an electric desalter. Dilute caustic is injected into the line just before the desalting drum. The aqueous phase collects at the bottom of this vessel and is drained away to the sewer. The oil leaves the desalter at 190°F, and goes through heat exchanger E-2 and into a furnace coil. From the furnace, which it leaves at 600°F, the oil proceeds to a distillation tower. [Pg.33]

R.V. Fronczak, Electrical desalting, in Encyclopedia of Chemical Processing and Design, Dekker, New York, 1983, Vol. 17, pp. 223-251. [Pg.629]

At not too high concentrations of the outer solution, the amount of absorbed salt in the membrane in equilibrium is very low (y is very small). For this reason the diffusion of salt through a membrane is very small too. The membrane behaves as a barrier for salt diffusion. This is also favourable in electrodialysis, where high differences can occur in the salt concentrations of dialysate and concentrate. As the back-diffusion opposes the effect of the electrical desalting, its value must be as small as possible. [Pg.322]

Fig. 18.13. Electric desalting—CB I. Baker ProcessTechnology. Includes heater, mixing device, and electrostatic settler. (Source Hydrocarbon Processing, 2004 Refining Process Handbook, CD-ROM. Sept. 2004 Copyright 2002 by Gulf Publishing Co., all rights reserved.)... Fig. 18.13. Electric desalting—CB I. Baker ProcessTechnology. Includes heater, mixing device, and electrostatic settler. (Source Hydrocarbon Processing, 2004 Refining Process Handbook, CD-ROM. Sept. 2004 Copyright 2002 by Gulf Publishing Co., all rights reserved.)...
Historically, the chemical selection process has been performed on a bench-top scale. Bottle tests (including ratio, elimination, and confirmation test), jar tests, and portable electric desalter tests fall into this test category. No effort will be made to describe these tests or the associated analytical procedures in detail, as they are described in Chapters 3 and 10. Furthermore, significant variation in testing procedures will exist between various chemical companies, oil producers, and refiners. Each test procedure is also tailored to each treating facility. [Pg.335]

Bench-top testing will allow variation in chemical type and dosage, temperature, pressure, agitation, treatment time, electrical input (portable electric desalters only), and wash-water or diluent addition. Variations in temperature and pressure will not allow simulation of high pressures and temperatures. The bench-scale tests imply that a batch treatment of the emulsion is used to determine treating chemicals for a dynamic continuous treating system. Thus, results will have limitations even if the parameters of the test procedure are as accurate as possible. [Pg.335]

Quantitative information on the BS W and salt content of oil as a whole or at selected levels in the oil column can be collected from the bottle and portable electric desalter tests. This information is usually accurate when applied within a system, although the chemical dosages necessary to achieve the results noted in the tests is usually significantly lower. [Pg.335]

Electrical desalting and drying of petroleum is especially widely applied in the industry, but less often in the oil wells. The opportunity created by the application of the electrical method in combination with many other methods can be attributed to one main advantage of this method. [Pg.230]

During electrical desalting, electricity is used to increase the rate of movement the water droplets with the solved salts as well as to accelerate the merging of small droplets to form bigger ones. These cause the separation of the droplets from the petroleum emulsion. [Pg.235]

In recent years, another new electrochemical application of carbon aerogels as electrode material for the capacitive deionization in water phase was reported. J.C. Farmer and other researchers in the United States did an electric desalting experiments using carbon aerogels and found improved performance with such materials relative to those obtained with other carbons [79, 84, 124]. [Pg.826]

The regularities of crude oil preparation, particularly its neutralization by an alkali, is been considered in current study. In order to neutralize the crude oil at electric desaltation stage, it is proposed to use the high-performance compact tubular turbulent apparatus of conflisor-diffuser design... [Pg.142]


See other pages where Electrical desalting is mentioned: [Pg.216]    [Pg.75]    [Pg.92]    [Pg.216]    [Pg.629]    [Pg.33]    [Pg.629]    [Pg.539]    [Pg.234]    [Pg.252]    [Pg.255]    [Pg.192]    [Pg.250]    [Pg.142]    [Pg.142]    [Pg.142]    [Pg.313]    [Pg.509]   
See also in sourсe #XX -- [ Pg.267 , Pg.872 ]




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