Application of membrane spray without backmixing tray on the amine regenerator in petroleum refining industry

In amine desulphurization and regeneration process of the petroleum refining industry, the recycling amines solution foaming always results in liquid blocking of column, which will seriously influence the desulfurization product properties and the operation of downstream sulfur recovery plant. In this paper, the problems of the amine regenerator before transformation were introduced. To solve these problems, all of the valve trays in the column were replaced with the membrane spray without backmixing trays. After transformation, the maximum treatment capacity increased from 210 t/h to 240 t/h, the indicators were good and no liquid blocking occurred. The unit runs well so far.