Method for extracting and removing nitrogen from fuel oil by use of polyethylene glycol and modified compounds thereof
A polyethylene glycol and compound technology, applied in the petrochemical field, can solve the problems of steel equipment corrosion, easy water absorption, serious problems, etc., and achieve the effect of low denitrification cost, simple operation and uncomplicated equipment
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Embodiment 1
[0017] The extraction agent is polyethylene glycol, the number average molecular weight is 600, the mass ratio of extraction agent to fuel oil is 0.1, the extraction temperature is 20°C, and the extraction time is 15 minutes. The content of the fuel is 25wt%, the initial nitrogen content of the fuel is 500μg / g, after the extraction operation, the denitrification rate is 93.2%, and the Nernst partition coefficient is 107.3.
Embodiment 2
[0019] The extraction agent is polyethylene glycol dicarboxylic acid, the number average molecular weight is 600, the mass ratio of extraction agent to fuel oil is 0.1, the extraction temperature is 20°C, the extraction time is 15 minutes, and the fuel used is a simulated oil formed by mixing indole, toluene, and n-octane , wherein the content of toluene is 25wt%, the initial nitrogen content of fuel oil is 500μg / g, after the extraction operation, the denitrification rate is 91.1%, and the Nernst partition coefficient is 83.9.
Embodiment 3
[0021] Extractant polyethylene glycol, number average molecular weight 200, mass ratio of extractant to fuel oil 0.5, extraction temperature 30°C, extraction time 15min, fuel oil used is simulated oil formed by mixing indole, toluene and n-octane, of which toluene The content of the fuel is 25wt%, the initial nitrogen content of the fuel is 500μg / g, after the extraction operation, the denitrification rate is 97.4%, and the Nernst partition coefficient is 67.0.
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