High-efficiency multi-functional polymerization inhibitor for butadiene extraction device and using method thereof

The invention relates to a high-efficiency multi-functional polymerization inhibitor for a butadiene extraction device and a using method thereof. The high-efficiency multi-functional polymerization inhibitor consists of phenolic compounds, aminated compounds and phosphorous acid ester compounds. The high-efficiency multi-functional polymerization inhibitor overcomes the disadvantages that the prior polymerization inhibitor has high cost and single performance and is unsteady in the butadiene extraction device, can passivate metal ions to inhibit metal from being catalyzed when the generationof coked scale is habited, can cleanse and disperse the generated coked scale, and has high efficiency and polyfunctionality. The high-efficiency multi-functional polymerization inhibitor is safe andenvironment-friendly, has simple and convenient use, has no influence on downstream processes, and effectively improves the operating efficiency of the butadiene extraction device.