DESALTING, FOULING AND CORROSION PROBLEMS SOLVED PROFITABLY A Turkish refinery processing challenging domestic Turkish crudes with Middle Eastern and Russion feedstocks struggled with desalting problems, preheat fouling from ammonium chloride and ammonium bisulfide salts, and overhead corrosion in its crude unit. Heat exchangers required cleaning every four months, exposing workers to hazards during cleaning and reducing throughput and operatin

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