Abstract: With increasingly stringent environmental regulations, the treatment of VOCs exhaust gas in refining and petrochemical enterprises has drawn significant attention. Combined with the characteristics of exhaust gas and the actual situation of construction projects, the research and development of efficient, rational and cost-effective treatment technologies has become a critical imperative for refining and chemical enterprises. Taking the treatment of VOCs exhaust gas from a polyolefin plant as an example, this paper addresses the challenges of large gas volume, low VOCs concentration, dust presence, high-temperature melting tendency of dust and intermittent emissions. By comprehensively evaluating various treatment methods according to project-specific characteristics, it identifies the optimal combination of treatment solutions. Meanwhile, research and optimization are conducted on the process flow and major equipment for this solution. Accordingly, the procedures and principles for selecting VOCs exhaust gas treatment methods are summarized.

Key words: VOCs exhaust gasllow VOCs concentrationldusty exhaustlexhaust treatmentlscrubber absorber