Direct coal liquefaction with integrated product hydrotreating and catalyst cascading
    1.
    发明授权
    Direct coal liquefaction with integrated product hydrotreating and catalyst cascading 有权
    直接煤液化与综合产品加氢处理和催化剂级联

    公开(公告)号:US08226821B2

    公开(公告)日:2012-07-24

    申请号:US12583276

    申请日:2009-08-19

    Abstract: A multi-stage catalytic process for the direct liquefaction of coal is utilized with a hydrotreater to first liquefy and subsequently treat the product in one integrated process. A fresh hydrogenation catalyst is used to reduce heteroatoms (S, N) from coal liquids in the downstream hydrotreater. This catalyst is then cascaded and re-used in the direct coal liquefaction process, first in the low temperature Stage 1, and then re-used in the high temperature Stage 2. Coal liquid products have very low contaminants and can be readily used to produce gasoline and diesel fuel. Catalyst requirements are substantially lowered utilizing this novel process.

    Abstract translation: 用于直接液化煤的多阶段催化方法与加氢处理器一起利用,以首先在一个整合过程中液化并随后处理该产物。 使用新鲜的氢化催化剂从下游加氢处理机中的煤液中还原杂原子(S,N)。 然后将该催化剂级联并在直接煤液化过程中重新使用,首先在低温阶段1中,然后在高温阶段2中重新使用。煤液体产物具有非常低的污染物并且可以容易地用于生产 汽油和柴油燃料。 利用这种新颖的方法,催化剂需求大大降低。

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