Environment-friendly aromatic hydrocarbon rubber filling oil and production method
A technology of rubber filler oil and production method, which is applied in the refining hydrocarbon oil, petroleum industry and other directions, can solve the problems of harsh indicators, low product yield, low polycyclic aromatic hydrocarbon solubility selectivity, etc., and achieves stable performance, high product quality, The effect of uniform distribution of carbon structure
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[0035] Example 1
[0036] Such as figure 1 As shown, a production method of environmentally friendly aromatic rubber filler oil uses a multi-component mixed solvent as the extractant and adopts a multi-stage extraction process for extraction. The extractant is input from the upper part of the extraction tower, and the raw oil is input from the lower part of the extraction tower. In countercurrent contact with the feedstock oil in the extraction tower, the top effluent of the extraction tower is a refined liquid, and the solvent is recovered by evaporation and gas stripping to obtain environmentally friendly aromatic rubber filler oil. The extraction liquid from the bottom of the extraction tower is evaporated and stripped to recover the solvent for recycling. Those skilled in the art figure 1 The present invention can also be implemented after the process flow shown is changed or adjusted. Such as figure 1 As shown, the annual production of 25,000 tons of environmentally frien...
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[0040] Example 2
[0041] The multi-component mixed solvent is a mixture of N-methylpyrrolidone: polyol: sulfolane in a volume ratio of 1: (0-1): (0-1), in which the content of the second component and the third component is not It is 0 at the same time. The extraction process is a continuous extraction process, and the process conditions are: temperature 95°C, mass ratio of agent to oil (2-5): 1, time 50-80 minutes; the rest are the same as in Example 1, the feedstock oil is high aromatic oil (its Polycyclic aromatic hydrocarbons (PCA=62%); product environmentally friendly aromatic hydrocarbon rubber filler oil yield 19.3%, and its polycyclic aromatic hydrocarbons PCA is 0.98%.
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