公开(公告)号：EP0645441A1

公开(公告)日：1995-03-29

申请号：EP94306258.8

申请日：1994-08-24

申请人： NIPPON PETROLEUM REFINING CO., LTD

发明人： Kawamura, Akira ,  Suzuki, Susumu ,  Imamura, Masahumi

IPC分类号： C10G73/06

CPC分类号： C10G73/06

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.

摘要翻译： 一种用于改变溶剂组成的脱蜡装置的溶剂回收系统，这取决于原料油的类型，通过引入干燥溶剂的一部分成湿溶剂槽，从而增加或减少MEK的浓度的方法和装置 用作主要溶剂与原料油混合INITIALLY湿溶剂。