OIL REFINERY PROCESSES
• For single-stage desalting units 90 to 95% efficiencies are obtained and two-stage processes achieve 99% or better efficiency. • If the pH of the brine exceeds 7, emulsions can be formed because of the sodium naphthenate and sodium sulfide Present. • For most crude oils it is desirable to keep the pH below 8.0.
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OIL REFINERY PROCESSES - University of Mohaghegh Ardabili
uma.ac.irRefining operations Petroleum refining processes and operations can be separated into five basic areas: • Fractionation (distillation) is the separation of crude oil in atmospheric and vacuum distillation towers into groups of hydrocarbon compounds of
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