Preparation method for metal salt/gamma-Al2O3 heat accumulating type catalyst carrier
A technology of catalyst carrier and metal salt, which is applied in the direction of catalyst carrier, physical/chemical process catalyst, chemical instrument and method, etc., to achieve the effects of enhancing mechanical properties, increasing stability, and improving the ability to resist sintering
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Embodiment 1
[0027] (1) Preparation of alumina support: Dissolve 10 g of aluminum nitrate in 15 mL of deionized water at room temperature, and slowly add dilute ammonia water with a mass concentration of 3.5% into the aluminum nitrate solution dropwise while stirring until aluminum hydroxide gel is formed; Then the aluminum hydroxide gel was washed and centrifuged three times with distilled water to remove NO in the gel. 3 - and NH 4 + Then add 5 mL of concentrated nitric acid with a mass fraction of 65% to the aluminum hydroxide gel, stir at a speed of 300 rpm for 10 min, place it in an oven at 120°C and heat it to light blue to obtain aluminum sol , the alumina carrier;
[0028] (2) Preparation and modification of polystyrene microspheres: Prepare materials according to the following ratio: distilled water 150mL, emulsifier sodium p-styrenesulfonate 0.0425g, initiator K 2 S 2 o 8 0.0833g, buffer NaHCO 3 0.0833g and styrene 18.3mL, distilled water, sodium p-styrenesulfonate and buf...
Embodiment 2
[0032] (1) Preparation of alumina carrier: Dissolve 15g of aluminum nitrate in 25mL of deionized water at room temperature, and slowly add dilute ammonia water with a mass concentration of 3.5% into the aluminum nitrate solution dropwise while stirring until aluminum hydroxide gel is formed; Then the aluminum hydroxide gel was washed and centrifuged four times with distilled water to remove NO in the gel. 3 - and NH 4 + Then add 2 mL of concentrated nitric acid with a mass fraction of 65% to the aluminum hydroxide gel, stir at a speed of 400 rpm for 15 min, place it in an oven at 110°C and heat it until it becomes transparent to obtain an aluminum sol, namely Alumina carrier;
[0033] (2) Preparation and modification of polystyrene microspheres: Prepare materials according to the following ratio: distilled water 150mL, emulsifier sodium p-styrenesulfonate 0.0425g, initiator K 2 S 2 o 8 0.0833g, buffer NaHCO 3 0.0833g and styrene 18.3mL, distilled water, sodium p-styrene...
Embodiment 3
[0037] (1) Preparation of alumina support: Dissolve 30g of aluminum nitrate in 60mL of deionized water at room temperature, and slowly add dilute ammonia water with a mass concentration of 3.5% into the aluminum nitrate solution dropwise while stirring until aluminum hydroxide gel is formed; The aluminum hydroxide gel was washed and centrifuged five times with distilled water to remove NO in the gel. 3 - and NH 4 + Then add 1 mL of concentrated nitric acid with a mass fraction of 65% to the aluminum hydroxide gel, stir at a speed of 200 rpm for 20 min, place it in an oven at 100°C and heat it to light blue to obtain aluminum sol , the alumina carrier;
[0038] (2) Preparation and modification of polystyrene microspheres: Prepare materials according to the following ratio: distilled water 150mL, emulsifier sodium p-styrenesulfonate 0.0425g, initiator K 2 S 2 o 8 0.0833g, buffer NaHCO 3 0.0833g and styrene 18.3mL, distilled water, sodium p-styrenesulfonate and buffer NaHC...
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