Abstract: In order to meet the new requirements of environmental protection, SINOPEC Guangzhou Company made a major revision of the flue gas desulfurization device in 2017. The original gas-liquid separator of the washing tower was revamped to an advanced dust removal and demisting system to improve the desulfurization and dust removal. The industrial application indicated that the pollution components were decreased, the demisting effect and the visual effect of defogging was optimized after the transformation. The mass concentration of the particulates was decreased from 126.6 mg/m3 to 12.8 mg/m3 while the removal rate was stable at 90%. The mass concentration of SO2 has decreased from 2832.4 mg/m3 to 3.7 mg/m3, and the removal rate being over 99%. All the important indicators of flue gas meet the pollutants emission standards in sensitive areas from petroleum refining industry (GB 31570-2015).

Key words: RFCC, flue gas desulfurization, advanced processing, dust removal, demising