Claim: In an oil refinery crude oil is desalted to remove inorganic salts and then heated via heat exchange.
Evidence: The incoming crude oil is preheated by exchanging heat with some of the hot, distilled fractions and other streams. It is then desalted to remove inorganic salts (primarily sodium chloride). Following the desalter, the crude oil is further heated by exchanging heat with some of the hot, distilled fractions and other streams.