Operating Characteristics of Various Combinations of Working Substances and Feeds in the Schroeder Desalting Process

摘要

A novel process has been discovered which has the potential to combine the advantages of both distillation and freezing processes, without the disadvantages. The process uses a working substance (WS), such as a high melting organic compound, at its freezing point, to effect direct contact evaporation. The purpose of this project was to investigate the operating characteristics of various WSs in the laboratory and a bench scale plant (BSP). A WS screening program tested melting range, solubility, tendency to entrain or emulsify, and stability, in the laboratory program. The BSP program satisfactorily simulated the operation of major pieces of equipment, using WSs that passed the screening program with seawater, and other saline water feeds. The process is ready for pilot plant design, construction, and operation.