Abstract: The general status of power station in 10Mt/a oil refining project of Guangxi Petroleum & Chemical Corporation of China National Petroleum Corporation was introduced. The selection of its desulphurization scheme was described. Both advantages and disadvantages of limestone gypsum wet desulphurization process and ammonia fertilizer process were compared. Combining with concrete situation of Guangxi Petroleum & Chemical Corporation, a flue gas desulphurization scheme was selected which is accordant with refinery practical situation. This scheme can be used as a reference for similar projects.

Key words: flue gas desulphurization, desulphurization scheme, desulphurization technology, comparison of technical and economical performance, refinery, fuel oil and fuel gas