Preparation method of high-activity trace transition metal catalyst based on asphaltene

The invention discloses a preparation method of a high-activity trace transition metal catalyst based on asphaltene and belongs to preparation methods of trace transition metal catalysts. The method includes the following steps of mixing coal-liquefied residues with a selected solvent, and extracting asphaltene from the coal-liquefied residues by means of a Soxhlet extraction method; placing a clean alundum tube in a tubular furnace, and under a protective atmosphere, raising the temperature of a high temperature part of the alundum tube to a reaction temperature; placing an alundum vessel with asphaltene into the tubular furnace, stopping heating after a certain period of time, and cooling a reaction furnace to the room temperature under the protective atmosphere; placing the alundum vessel with transition metal chemicals into the tubular furnace, heating the alundum vessel under a set condition for a certain period of time, then cooling the alundum vessel to the room temperature, andtaking out a sample in t