March 2018

Process Optimization

Flexibility in desalting operations for opportunity crudes

Typically, opportunity crudes require more rigorous desalting to yield high-quality products due to high levels of naphthenic acids, basic sediment and water (BS&W) and filterable solids, among others.

Mejias, I., Liu, Y., Boul, J., Collins, T., Forum Process Technologies

Typically, opportunity crudes require more rigorous desalting to yield high-quality products due to high levels of naphthenic acids, basic sediment and water (BS&W) and filterable solids, among others. These crudes differ greatly in quality, as does the quality of the desalted crude from such feeds. The benefits from low-priced feedstock are balanced against capital investments for desalting units and higher operating costs. The key is ensuring that the desalting process has the operational flexibility to process these types of crudes. The impact from emulsion sensitive crudes is prevalent; upsets from the desalter elevate downstream corrosion. Cold liquid carryover to downstream units

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