Preparation method and application of passivated sulfurized hydrocracking catalyst
A hydrocracking and catalyst technology, which is used in catalyst activation/preparation, physical/chemical process catalysts, molecular sieve catalysts, etc. Passivation effect, migration promotion, dispersibility enhancement effect
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Embodiment 1
[0040] Take 50g of oxidized hydrocracking catalyst, prepare an aqueous solution containing 11.3g of diethanolamine and 3.5g of glycerol, stir evenly at 30°C to obtain an impregnating solution containing nitrogen and organic alcohols, and use nitrogen-containing and a solution of an organic alcohol to introduce an oxidized state hydrocracking catalyst to introduce an organic alcohol with a nitrogen content of 3.0% by weight and an atomic ratio to Ni of 0.8, and dry the catalyst for 4 hours at 120°C under normal pressure in flowing air to obtain The catalyst supporting nitrogen and organic alcohol; then the catalyst supporting nitrogen and organic alcohol in the volume fraction H 2 S:H 2 :N 2 =5:70:25 atmosphere, the vulcanization reaction is carried out in the form of temperature programming, from 30°C to 230°C at a rate of 30°C / hour, constant temperature for 4 hours, and then at a rate of 15°C / hour to 300°C constant temperature 6 Hours, a passivated sulfide state hydrocracki...
Embodiment 2
[0043] Take 50g of oxidized hydrocracking catalyst, prepare an aqueous solution containing 5.6g of N-(2-hydroxyethyl)ethylenediamine and 3.5g of glycerol, and stir evenly at 30°C to obtain an impregnation solution containing nitrogen and organic alcohols , according to the pore saturation impregnation method, a solution containing nitrogen and organic alcohol is introduced into the oxidized state hydrocracking catalyst to introduce a nitrogen content of 3.0% by weight and an organic alcohol with an atomic ratio of 0.8 to Ni, and the catalyst is heated at 130 ° C under normal pressure , drying in flowing air for 3 hours to obtain a catalyst for loading nitrogen and organic alcohol; then the catalyst for loading nitrogen and organic alcohol is 2 S:H 2 :N 2 = Under the atmosphere of 3:60:37, the vulcanization reaction is carried out in the form of temperature programming. The temperature is raised from 30°C to 210°C at a rate of 30°C / hour, and the temperature is kept constant fo...
Embodiment 3
[0045] Take 50g of oxidized hydrocracking catalyst, prepare an aqueous solution containing 11.3g of diethanolamine and 2.3g of ethylene glycol, and stir evenly at 40°C to obtain an impregnation solution containing nitrogen and organic alcohols. and a solution of an organic alcohol to introduce an oxidized state hydrocracking catalyst to introduce an organic alcohol with a nitrogen content of 3.0% by weight and an atomic ratio to Ni of 0.8, and dry the catalyst for 4 hours at 120°C under normal pressure in flowing air to obtain The catalyst supporting nitrogen and organic alcohol; then the catalyst supporting nitrogen and organic alcohol in the volume fraction H 2 S:H 2 :N 2 =8:65:27 atmosphere, the vulcanization reaction is carried out in the form of temperature programming, from 30°C at a rate of 15°C / hour to 240°C, constant temperature for 2 hours, and then at a rate of 25°C / hour to 310°C constant temperature 4 Hours, the passivated sulfide state hydrocracking catalyst C3 ...
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