The extraction and refiningprocess includes distillating washing oil or anthracene oil to get fluorene distillate, then crystallizing the fluorene distillate to get fluorene using cooling or solvent.
Its manufacture process includes the deasphalting of the vacuum-pressure residual oil, solventrefining, solvent-dewax, refining, shaping and packing.
它通过减压渣油脱沥青、溶剂精制、溶剂脱蜡脱油、精制、成型、包装等工艺过程制备而成。
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Gas oil fraction of shale oil is unstable. To address this problem, the authors of the article propose a new solvent extraction-alkali washing refiningprocess.