Passivation method of sulfuration type hydrogenation catalyst
A hydrogenation catalyst and vulcanization-type technology, applied in the direction of physical/chemical process catalysts, catalyst protection, chemical instruments and methods, etc., can solve problems affecting product quality, recycling refinery troubles, etc., and achieve the effect of avoiding spontaneous reactions
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Embodiment 1
[0025] Take the industrially produced catalyst FH-40C and pre-sulfurize it to make a sulfided catalyst. Put the catalyst in a closed container to evacuate with a vacuum degree of -0.05MPa, then cool down to -180°C and feed nitrogen gas. 100mL / h, keep it for 1h, turn off the nitrogen, raise the temperature to -100°C, introduce nitrogen containing 15% ozone, the gas pressure is 3.5MPa, the flow rate is 1000mL / h, keep it for 0.5h, the finished catalyst A is obtained, and replace it with nitrogen After replacement, the catalyst is taken out for use.
Embodiment 2
[0027] Take the industrially produced catalyst FH-40C and pre-sulfurize it to make a sulfided catalyst, place the catalyst in a closed container to evacuate, the vacuum degree is -0.1MPa, then cool down to -50°C and feed carbon dioxide, the carbon dioxide pressure is 1MPa, the flow rate 200mL / h, keep 2h, turn off the carbon dioxide, raise the temperature to -10°C, introduce carbon dioxide gas containing 10% ozone, gas pressure 4.0MPa, flow rate 1200mL / h, keep 0.2h, then raise the temperature to 20°C, the flow rate is 1500ml / h, keep it for 0.1h to get the finished catalyst B, replace it with nitrogen and take out the catalyst for use.
Embodiment 3
[0029] Take the industrially produced catalyst 1 and pre-sulfurize it to make a sulfided catalyst, place the catalyst in a closed container to evacuate with a vacuum degree of -0.08MPa, then cool down to -160°C and feed nitrogen with a nitrogen pressure of 5MPa and a flow rate of 200mL / h, keep it for 2h, turn off the nitrogen, raise the temperature to -80°C, introduce nitrogen containing 10% ozone, the gas pressure is 6.0MPa, the flow rate is 2000ml / h, keep it for 0.5h, then raise the temperature to -50°C, and increase the flow rate to 3000mL / h, kept for 0.1h, the finished catalyst C was obtained, replaced by nitrogen, and the catalyst was taken out for use.
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