Alumina carrier and preparation method and application thereof
A kind of technology of alumina carrier and alumina, which is applied in the direction of catalyst carrier, chemical instruments and methods, catalyst activation/preparation, etc., can solve the problems of improving the activity of hydrotreating catalysts, so as to improve catalyst activity, solve diffusion channels, and slow down coking problem effect
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Embodiment 1
[0028](1) Take 6 g of sodium silicate to form a sodium silicate solution, then add 2 g of base lumen to a sodium silicate solution, stir until completely dissolve, and adjust the pH to 3 with a mass concentration of 3%. Prepose precipitation, filtration separation, washed with water to pH for 12 h for 12h with water to obtain lignin / SiO2Composite nanoparticles, recorded as A1.
[0029](2) 200 g of aluminum oxidation gum powder, 4 g of the field powder and citric acid, and a mixed uniform; 9.5 g of dilute concentration of 68% was weighed and diluted with ionized water to 200 ml. The material was blended 15 min, then rolled for 20 min, add the powder to the process of the acid liquid during the rolling process. 600 ° C was calcined at 600 ° C for 4 hours at 120 ° C for 6 hours, and the carrier was rejected by Z1.
Embodiment 2
[0031](1) Take 6 g sodium silicate to add 120 ml of water to a sodium silicate solution, and then add 4 g of base lumen to a sodium silicate solution, stir until completely dissolve, and adjust the pH to 3 with a mass concentration of 3%. Prepose precipitation, filtration separation, washed with water to pH for 12 h for 12h with water to obtain lignin / SiO2Composite nanoparticles are remembered as A2.
[0032](2) 200 g of aluminum oxidation gum powder, 4 g of the field powder and citric acid and A2 were added, mixed uniform; 9.5 g of dilute concentration of 68% was weighed and diluted with ionic water to 200 ml. The material was blended 15 min, then rolled for 20 min, add the powder to the process of the acid liquid during the rolling process. After stirring at 120 ° C for 4 hours, 6 h was calcined at 600 ° C, and the carrier after the calcination was Z2.
Embodiment 3
[0034](1) Take 6 g sodium silicate to add 120 mL of water to a sodium silicate solution, then add 6 g of base lumen to a sodium silicate solution, stir until completely dissolve, and adjust the pH to 3 with a mass concentration of 3% nitric acid solution. Prepose precipitation, filtration separation, washed with water to pH for 12 h for 12h with water to obtain lignin / SiO2Composite nanoparticles, recorded as A3.
[0035](2) 200 g of alumina dry rubber powder, 4 g of the fields and citric acid and A3, mixed uniform; 9.5 g of dilute nitric acid having a concentration of 68% and diluted with ionic water to 200 mL. The material was blended 15 min, then rolled for 20 min, add the powder to the process of the acid liquid during the rolling process. After stirring at 120 ° C for 4 hours, 6 h was calcined for 6 h, and the carrier was rejected by Z3.
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