Coal liquefaction catalyst as well as preparation method and application thereof

The invention relates to the field of coal chemical industry, in particular to a coal liquefaction catalyst and a preparation method thereof. The catalyst comprises an active component FeOOH, a dispersing agent, water and solvent oil, the active component FeOOH is in a short sheet form, the length is not larger than 100 nm, and the width is not larger than 20 nm. The catalyst provided by the invention has high intrinsic activity and good stability, and can promote hydrocracking of asphalt substances and improve the conversion of coal and the yield of liquefied oil during a direct coal liquefaction reaction. 本发明涉及煤化工领域，具体地涉及一种煤液化催化剂及其制备方法。该催化剂包括活性组分FeOOH、分散剂、水和溶剂油，其中，所述活性组分FeOOH为短片形态，长不大于100nm，宽不大于20nm。本发明催化剂本征活性高、稳定性好，在煤直接液化反应时，能够促进沥青类物质加氢裂化，提高煤的转化和液化油产率。