Coke modification catalyst and spraying method

The invention discloses a coke modification catalyst which comprises the following components in percentage by mass: 30-55% of a degradation adsorbent, 10-25% of a tackifying cosolvent, 20-45% of a pore sealing agent, 15-55% of a complexing agent and 1-5% of a surface modifier, and is prepared by uniformly mixing and reacting the components in a catalytic stirring tank according to the mass percentage of each component, and grinding, screening, centrifugally dewatering and drying to obtain the coke modified catalyst, and then metering, weighing and bagging. Compared with the prior art, the method provided by the invention has the advantages that by applying the coke modification catalyst, the post-reaction strength CSR of the coke can be improved, the coke reactivity CRI can be reduced, the cold-state crushing strength M40 of the coke can be improved, and the abrasive resistance M10 can be reduced, so that the coke quenching water resource can be saved, the dust pollution can be reduced, and the energy consum