Reagents for desalting crude oil
The presence of salts in the oil has a negative impact on operation of oil-refinery equipment : salt deposition in furnace pipes and heat exchangers requires their frequent cleaning, reduces heat transfer, causes severe corrosion (chlorides Ca and Mg are hydrolyzed with the formation of HCl); poisons the catalysts. In addition, salts and mechanical impurities accumulate in the residual oil-fuel oil and tar, and impairs their quality.