Crude oil sometimes accompanied with salt content. This salt content is not desirable in the refining plant and it is removed using a desalting unit. 6 Jul 2015 Crude oil that contains only 1.0% water with a 15,000-ppm salt content has 55 lbm of salt per 1,000 bbl of water-free crude. The chemical Salts (as chloride) in crude oil, diesel, kerosene, gasoline and turbine oil was determined. The samples under this study collected from different places in Kurdistan Salts in crude oil are the main reason of overhead corrosion in distillation column . Common salts in crude oil are NaCl, MgCl2, CaCl2. The hydrolysis of MgCl2 Mainly three different chloride salts are available in crude oils, Sodium Chloride Continuous monitoring of the salt content by the MOD 4100 S Salt in crude oil Depending on the desired salt content in the desalted crude oil, a one- or two- step process could be applied. For refining purposes, a salt concentration of
Crude oil that contains only 1.0% water with a 15,000-ppm salt content has 55 lbm of salt per 1,000 bbl of water-free crude. The chemical composition of these salts varies, but nearly always is mostly NaCl, with lesser amounts of calcium and magnesium chloride. The salt is dissolved in the water in the crude oil, not in the crude oil itself. The desalting is usually the first process in crude oil refining. The salt content after the desalter is usually measured in PTB - pounds of salt per thousand barrels of crude oil. Another specification is Basic sediment and water.
The refinery controls the salt content in the crude oil below 4 mg of chlorides/l. of oil (mg/l.), which conforms to the quality-control standard and meets the requirement of FCCU feed. I have done a test to determine the value of Chloride for Crude oil entering Desalter using Mercury Nitrate titration method. The value of Chloride is 10 ppm. My laboratory method to determine salt content (ptb) is 10 ppm Chloride x 1.65 divide by 2.853 which yield 5.78 ptb. Depending on the desired salt content in the desalted crude oil, a one- or two-step process could be applied. For refining purposes, a salt concentration of maximum 1, 5 PTB (pound of salt measured as NaCl per thousand barrels) is desired. CRUDE OIL SPECIFICATIONS Crude Oil Type Results IRANIAN LIGHT R.V.P (PS) 7.0 Specific Gravity At 16.6/16.8C 0.5545 A.P.I. Gravity at 15 BC 31-33 Water % Vol 0.02 Water and Sediment NIL Hydrogen Sulphide PPM NIL Salt NACL PPM 5.0 Sulphur P% WT 1.5 Asphalt Tense % WT 1.2
High oil content in the desalter effluent water can cause environmental The crude inlet salt content was 460 parts per millions (ppm), and the BS&W was up to Organic chloride or undesaltable chloride contamination in crude oil can that mainly focus on separating the salt-containing water from the crude to control. Abstract In this work, a novel procedure is developed to determine the amount of salt for crude oils in which the available laboratory techniques are unable to The hydrocarbons in crude oil are mostly alkanes (paraffins), cycloalkanes A high salt content in a crude oil presents serious corrosion problems during. Since the EPA began that program in 2006, we've been recognized more than all other U.S. refiners combined. MPC is the only petroleum refining company to IP 77: Determination of salt content - Extraction and volumetric titration method in crude petroleum, topped crude, residual cracking stock, and fuel oil.
The final results for various samples show a salt content (ppm) of crude oil (307.32 – 441.58) ppm, diesel (19.68 – 579.27) ppm, kerosene (102.02 – 531.94) ppm, gasoline (92.76 – 563.76) ppm, turbine oil (recycled) 30.77 ppm and turbine oil (used) 324.