05-05-2023 дата публикации
Номер: CN116064162A
Принадлежит:
The invention relates to a coal tar raw material pretreatment method, which comprises: S1, mixing a coal tar raw material with an organic compound solvent, and carrying out centrifugal separation to obtain a first solid phase material and a first liquid phase material; s2, in the presence of hydrogen, enabling the second liquid-phase material to be in contact with a pretreatment catalyst for a pretreatment reaction, and performing gas-liquid separation on an obtained pretreatment reaction product to obtain gas and a second liquid-phase material; s3, the second liquid-phase material is filtered, a third liquid-phase material and pretreated coal tar are obtained, and the solid content of the third liquid-phase material is higher than that of the pretreated coal tar; and S4, mixing the third liquid-phase material with the solvent oil, and returning to the step S1 for centrifugal separation. The method is simple, convenient to operate, low in investment cost, high in efficiency and capable ...
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