A kind of activation method of hydrogenation catalyst and its application
The technology of a hydrogenation catalyst and an activation method, which is applied in the field of hydrogenation catalyst activation, can solve the problems of gasoline octane number drop, hydrogen consumption and the like, and achieve the effects of high hydrodesulfurization selectivity and good hydrodesulfurization activity.
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Embodiment 1
[0031] With 1 vol% H 2 S+N 2 The mixed gas raises the device to an operating pressure of 1.6MPa, and the gas volume space velocity is 500h -1 , Then use 1h to raise the reactor temperature from room temperature to 230°C and keep the temperature for 2h. After the constant temperature is over, switch the gas mixture to 1 vol% H 2 S+H 2 Keep the gas volume space velocity constant, and at the same time introduce cyclohexane into the catalyst bed to continue the activation reaction, the liquid hourly space velocity is 2h -1 . The temperature of the reactor was raised to 320°C in 1 hour, and then activated at a constant temperature of 320°C for 10 hours. The activated catalyst was denoted as C-1. After activation, when the temperature dropped to 285°C, the sulfurized oil was switched to a catalytic cracking gasoline, and a selective hydrodesulfurization reaction was carried out on the device. The properties are shown in Table 2, and the reaction conditions and results are liste...
Embodiment 2
[0035] 4vol%H 2 S+N 2 The mixed gas raises the device to an operating pressure of 1.6MPa, and the gas volume space velocity is 500h -1 , Then use 1h to raise the reactor temperature from room temperature to 230°C and keep the temperature for 2h. After the constant temperature is over, switch the gas mixture to 4 vol% H 2 S+H 2 , keep the volumetric space velocity of the gas constant, and at the same time introduce the straight-run gasoline distillate into the catalyst bed to continue the activation reaction, the liquid hourly space velocity is 2h -1 . The temperature of the reactor was raised to 320°C in 1 hour, and then activated at a constant temperature of 320°C for 10 hours. The activated catalyst was denoted as C-2. After activation, when the temperature dropped to 285°C, the sulfurized oil was switched to a catalytic cracking gasoline, and a selective hydrodesulfurization reaction was carried out on the device. The properties are shown in Table 2, and the reaction c...
Embodiment 3
[0037] 1vol%H 2 S+N 2 The mixed gas raises the device to an operating pressure of 1.6MPa, and the gas volume space velocity is 500h -1 , Then use 1h to raise the reactor temperature from room temperature to 230°C and keep the temperature for 2h. After the constant temperature is over, switch the gas mixture to 1 vol% H 2 S+H 2 , keeping the volumetric space velocity of the gas constant, and will contain 5.7% CS 2 The cyclohexane is introduced into the catalyst bed for activation reaction, and the liquid hourly space velocity is 2h -1 . It took 1 hour to raise the temperature of the reactor to 320°C, and then activated it at a constant temperature of 320°C for 10 hours. The activated catalyst was recorded as C-3. After activation, when the temperature dropped to 285°C, the sulfurized oil was switched to a catalytic cracking gasoline, and a selective hydrodesulfurization reaction was carried out on the device. The properties are shown in Table 2, and the reaction condition...
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