An existing desalting train at U.S. Golf Coast region refinery was consuming excessive chemicals and encountering frequent operation and maintenance problems. Effluent water from the desalter also contained high oil concentration which overtaxed refinery's waste water treatment plant.

After careful evaluation and analysis of the existing desalting system, replacement and modification of the vessel internal was recommended.

This paper is a testimony to the performance of the Bilectric™* desalter and its operational and economic advantages. The payback for the capital investment was less than one year and economic justification was proven by several months of actual operating data. Some of the saving sources reported by the refiner were, lower chemicals usage, lower power consumption, lower oil concentration in the effluent water and lower maintenance cost.

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