Pre-treatment method of nickel hydrogenation catalyst

The invention relates to a pre-treatment method of a nickel hydrogenation catalyst, which mainly comprises two steps that: (1) when reducing gas exists, the catalyst is reduced on a fixed bed reactor or a converter through a segmentation method, the volume ratio of the reducing gas to the catalyst is 500 to 1000Nm3/m3/h, and the process conditions are as follows: the pressure is 0.1 to 0.8MPa, the temperature goes up to 230 to 250 DEG C at the temperature rise speed of 15 to 50DEG C/h and is maintained for 3 to 5h, and then goes up to 390 to 400DEG C at the temperature rise speed of 10 to 20DEG C/h and is maintained for 4 to 5h, and the reduction is over; and (2) catalyst passivation: the hydrogen pressure is 2.0 to 3.0MPa, the temperature of a catalyst bed layer is 20 to 30DEG C, the passivator airspeed is 5 to 20h-1, and the passivator and the catalyst contact for 3 to 5h; and the passivator is an oil product which contains olefin, the olefin mass content is 0.1 to 40 percent, and the sulfur content is 0 to