Comparison of different analytical methods for measuring salt in crude oil

The crude oil extracted from the well contains large amounts of water and salt that forms an emulsion. Usually these emulsions lead to some problems, such as oil price devaluation, increased operating costs, corrosion and catalyst contamination in refineries. Separation of water and salt from crude oil is carried out in desalination and operation units. One of the important parameters that determines the quality of crude oil for export and use in refineries is the amount of salt in crude oil. For this purpose, several methods have been proposed to measuring the amount of salt in crude oil. [1], [2], [3]. In this study, two standard test methods of measuring salt in crude oil were tested and the results were evaluated. Finally, advantages and disadvantages of the methods were discussed