This article introduces the industrial test that the alkaline residue of gasoline from CDU after being deoil and deodorization was used to purify gas oil from CDU and naphthenic acid was recoverd from the alkaline residue of gas oil from CDU.

• 介绍了常压汽油碱渣脱油、脱臭、回用精制常压柴油和常压柴油碱渣回收环烷酸的工业试验。