Preparation method of hydrogenation catalyst
A technology for hydrogenation catalysts and catalyst carriers, which is applied in the direction of catalyst carriers, molecular sieve catalysts, chemical instruments and methods, etc. It can solve the problems of amorphous silicon-aluminum agglomeration, blockage of molecular sieves, reduction of catalyst specific surface area and pore volume, etc. Uniform distribution, the effect of improving performance
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Embodiment 1
[0030] Add 365g of solid aluminum chloride into 3.5 liters of distilled water while heating and stirring until dissolved to obtain aluminum chloride solution (a). Add an appropriate amount of distilled water to the concentrated ammonia water and dilute it into about 10wt% dilute ammonia water (b), and dissolve 14 g of octadecylamine in 350 ml of absolute ethanol to form a solution (c). In the stirring state, add 35g modified Y-type molecular sieve Y-1 (SiO 2 / Al 2 o 3 The molar ratio is 11.0, the unit cell constant is 24.42?, and the relative crystallinity is 95%), stirred for 1 hour, filtered, and dried at 100°C for 4 hours to obtain (d). Take a stainless steel reaction tank, add (a) into the tank, stir and heat to 60°C, open the valve of the container containing (b), and control the system in the tank to drop to pH=4.0 within 10 minutes, at this time, add Add (d) into the tank, continue to add (b) dropwise, and control the dropwise addition of the tank system to pH=8.0 wi...
Embodiment 2
[0033] 465g of solid aluminum sulfate was added to 3.5 liters of distilled water while heating and stirring until dissolved to obtain aluminum sulfate solution (a). Add an appropriate amount of distilled water to the concentrated ammonia water and dilute it into about 10wt% dilute ammonia water (b), and dissolve 28g of hexadecylamine in 1L of ethanol to form a solution (c). In the stirring state, add 139g modified Y-type molecular sieve Y-1 (SiO 2 / Al 2 o 3 The molar ratio is 11.0, the unit cell constant is 24.42?, and the relative crystallinity is 95%), stirred for 1 h, filtered to obtain a filter cake, and dried at 110°C for 12 h to obtain (d). Take a stainless steel reaction tank, add (a) into the tank, stir and heat to 60°C, open the valve of the container containing (b), and control the system in the tank to drop to pH=4.0 within 10 minutes, at this time, add Add (d) into the tank, continue to add (b) dropwise, and control the dropwise addition of the tank system to pH...
Embodiment 3
[0037] 230g of solid aluminum sulfate was added to 1.5 liters of distilled water while heating and stirring until dissolved to obtain aluminum sulfate solution (a). Prepare the solid sodium metaaluminate to a concentration of 20g Al 2 o 3 / l sodium aluminate solution (b), 55g decylamine is dissolved in 2.5L ethanol, forms solution (c). In the stirring state, add 548g modified Y-type molecular sieve Y-1 (SiO 2 / Al 2 o 3 The molar ratio is 11.0, the unit cell constant is 24.42 ?, and the relative crystallinity is 95%), and stirred for 1 h to obtain (d). Take a stainless steel reaction tank, put 1L of deionized water into it, stir and heat it to 60°C, open the valves of the containers containing (a), (b) and (d) at the same time, control the pH of the system to 8.0, and control it within 45 minutes Drip (a) and (d) off. Keep the temperature at 60°C, pH=8.0, age for 1 hour, filter the material in the tank, wash until there is no sulfate ion, wash twice with absolute ethanol,...
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