关键词: 油气回收, 吸附法, 工业应用, 干式真空泵

Abstract: When comparing and selecting different technologies for oil vapor recovery applications, cost is usually the most critical parameter if all candidates can meet the emission requirement. This article compares different adsorption based oil vapor recovery schemes, and concludes that the adsorption/absorption combination scheme is still the mainstream worldwide. The variations of this scheme, such as the adsorption/refrigeration combination, the absorption/membrane separation/adsorption combination, are only used under some special scenarios. Due to its relatively simple procedure and less space requirements, the combined adsorption/absorption scheme with dry screw vacuum pump will gradually replace the widely used combined adsorption/absorption scheme with liquid ring vacuum pump. Thus, fundamental research in this area is recommended for domestic institutions having interests in the oil vapor recovery market.

Key words: oil vapor recovery, adsorption method, industrial application, dry screw vacuum pump