Method and apparatus for changing solvent composition in a solvent recovery system of a dewaxing apparatus.

摘要

A method and apparatus for changing the solvent composition in a solvent recovery system of a dewaxing apparatus, depending on the type of stock oil, by introducing a part of dry solvent into a wet solvent tank to thereby increase or decrease a concentration of MEK in the wet solvent used as a primary solvent for initially mixing with the stock oil. <IMAGE>