关键词: 膜法分离, 废气治理, 达标排放

Abstract: There are ten internal floating roof storage tanks in tank area B of the Olefin Department, including six naphtha storage tanks, two mixed benzene storage tanks, two crude aromatic hydrocarbon storage tanks, and the top gas of these ten storage tanks is discharged to the atmosphere directly. In 2017, the Olefin Department adopted the “membrane separation + adsorption process” to treat the tank top gas in tank area B. The effective components were recovered through membrane separation technology, and the exhaust gas that had not passed through the membrane was discharged after meeting the emission standards through adsorption technology, thereby reducing the impacts of tank top gas on the atmospheric environment.

Key words: membrane separation, waste gas treatment, discharge up to standard