Preparation method and production device of catalyst for cyclohexene preparation through benzene selective hydrogenation
A technology for hydrogenation and production equipment selection, applied in the chemical industry, can solve problems such as not being able to meet large-scale industrial production, achieve the effects of saving high-purity nitrogen and high-purity hydrogen, convenient operation, and guaranteed operating conditions
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Embodiment 1
[0029] The preparation of embodiment 1 catalyst and activity evaluation thereof
[0030] (1) Preparation method
[0031] Salt solution configuration: weigh 15kg RuCl 3 wxya 2 O is put into salt box 8, adds 200L deionized water, dissolves under stirring. Alkali solution preparation: Add about 200L of deionized water at room temperature into the alkali tank 9, add 12kg of NaOH to stir the solution, and control the temperature at 50°C to 60°C.
[0032] Open the vacuum system, first introduce the lye through the liquid feed pipe 3, stir, and then introduce the salt solution. Maintain the temperature at 50° C. to 60° C., and stir for 6 hours. Stand and age for 12 hours.
[0033] Through the inlet pipe 2, high-purity nitrogen is passed into the aged high-pressure reactor for gas replacement, and then high-purity hydrogen is introduced. After the hydrogen pressure reaches 5MPa, heating and stirring are started. During the heating process, hydrogen is replenished in time to maint...
Embodiment 2
[0049] The preparation of embodiment 2 catalyst and activity evaluation thereof
[0050] (1) Preparation method
[0051] Salt solution configuration: weigh 15kg RuCl 3 wxya 2 O is put into the salt box 8, adds 200L deionized water, and dissolves under stirring. Alkali solution preparation: add about 200L room temperature deionized water in the alkali tank in 9, add 12kg NaOH to stir the solution, and control the temperature at 50°C to 60°C.
[0052] Open the vacuum system, first introduce the lye through the liquid feed pipe 3, stir, and then introduce the salt solution. Maintain the temperature at 50° C. to 60° C., and stir for 3 hours. Leave to age for 6 hours.
[0053] Through the inlet pipe 2, high-purity nitrogen is passed into the aged high-pressure reactor for gas replacement, and then high-purity hydrogen is introduced. After the hydrogen pressure reaches 4MPa, heating and stirring are started. During the heating process, hydrogen is replenished in time to maintai...
Embodiment 3
[0063] Example 3 Preparation of Catalyst and Evaluation of Its Activity
[0064] (1) Preparation method
[0065] Salt solution configuration: weigh 15kg RuCl 3 wxya 2 O is put into the salt box 8, adds 200L deionized water, and dissolves under stirring. Alkali solution preparation: Add about 200L of deionized water at room temperature into the alkali tank 9, add 12kg of NaOH to stir the solution, and control the temperature at 50°C to 60°C.
[0066] Open the vacuum system, first introduce the lye through the liquid feed pipe 3, stir, and then introduce the salt solution. Maintain the temperature at 50° C. to 60° C., and stir for 8 hours. Let stand and age for 8 hours.
[0067] Through the inlet pipe 2, high-purity nitrogen is passed into the aged high-pressure reactor for gas replacement, and then high-purity hydrogen is introduced. After the hydrogen pressure reaches 5MPa, heating and stirring are started. During the heating process, hydrogen is replenished in time to ma...
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