Catalyst for coal hydroliquefaction and preparation method thereof

The invention provides a catalyst for coal hydroliquefaction and a preparation method thereof. The method includes the steps that firstly, a catalyst precursor is prepared by a liquid phase precipitation method; then, the catalyst precursor is sulfurized; finally, the sulfurized catalyst precursor is mixed with a carrier to obtain the catalyst for coal hydroliquefaction. The catalyst for coal hydroliquefaction comprises iron oxyhydroxide with active components sulfurized, a structural auxiliary silica and the carrier deashed coal char. The prepared catalyst for coal hydroliquefaction is good in dispersibility and high in catalytic activity, the application cost is reduced, the process is simple, and production and promotion are easy. 本发明提供了种用于煤加氢液化催化剂及其制备方法，首先采用液相沉淀法制备催化剂前驱体，其次对催化剂前驱体硫化处理，最后将硫化处理的催化剂前驱体与载体混合，得到用于煤加氢液化的催化剂。本发明用于煤加氢液化催化剂包括活性成分硫化处理的羟基氢氧化铁，结构助剂二氧化硅和载体脱灰煤焦。本发明制备的用于煤加氢液化催化剂分散性好，催化活性较高，降低了应用成本，同时工艺简单，易于推广生产。