Preparation method for catalyst used for deoxidation of biological fatty alcohol
A catalyst and fatty alcohol technology, which is applied in the field of catalyst preparation, can solve the problems of poor hydrothermal stability of alumina and achieve the effects of long service life, improved conversion rate and high conversion rate
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[0012] The preparation method of the catalyst of this biological fatty alcohol deoxygenation of the present invention, the steps of the method are as follows:
[0013] (1), carrier preparation: 40-60 grams of γ-Al 2 o 3 Powder, 60-80 grams of MCM-41 molecular sieve powder with a pore size of 10-50nm and 5-10 grams of Tianqing powder, stir and mix in a dry state, add 50-100ml deionized water and 20-30ml with a concentration of 15%-20% Dilute nitric acid aqueous solution, kneading repeatedly for 20-30 minutes, extruded into cylindrical shape, clover shape or spherical shape, dried at room temperature for 2-5 hours, dried in an oven at 105°C-120°C for 2 hours, and then calcined at 500°C for 4-5 hours to obtain carrier;
[0014] (2) Take 100g carrier, add it to 200ml-250ml of 1%-2% acid solution to expand the pores, react for 0.2-0.5h, then wash with deionized water for 3-5 times, dry at room temperature for 2h, and store at 105°C- Dry in an oven at 120°C for 2 hours, then calc...
Embodiment 1
[0021] 80g γ-Al 2 o 3 Mix with 40g of MCM-41 molecular sieve with a pore size of about 35nm, 5g of Tianqing powder in a dry state, then add 50ml of deionized water and a small amount of nitric acid, knead repeatedly for 30 minutes, and extrude a cylindrical carrier with a diameter of 2mm; dry at room temperature for 5h, Dry in an oven at 105°C for 2h, and then calcined at 500°C for 5h to obtain a carrier. Take 100g of the carrier, add it to 200ml of 2% hydrochloric acid, react for 0.2h, then wash with deionized water 5 times, dry at room temperature for 2h, dry in an oven at 105°C for 2h, and then calcinate at 500°C for 4h. After cooling to normal temperature, immerse in 40ml tetraammonium platinum nitrate aqueous solution containing 0.3g Pt for 5 hours, dry at normal temperature for 12 hours, dry at 120°C for 2 hours, and calcined at 550°C for 4 hours to obtain the catalyst of Example 1 of the present invention.
[0022] The performance evaluation of the catalyst was carrie...
Embodiment 2
[0024] 40g γ-Al 2 o 3 Mix with 80g of MCM-41 molecular sieve with a pore size of about 35nm and 5g of Tianqing powder in a dry state, then add 50ml of deionized water and a small amount of nitric acid, knead repeatedly for 20 minutes, and extrude a cylindrical carrier with a diameter of 1.6mm; dry at room temperature for 2 hours , dried in an oven at 120°C for 2h, and then calcined at 500°C for 4h to obtain a carrier. Take 100g carrier, add it to 250ml sulfuric acid solution (1%), react for 0.5h, then wash 4 times with deionized water, dry at room temperature for 2h, dry in an oven at 120°C for 2h, and then calcined at 500°C for 4h. After cooling to room temperature, impregnate with 40ml palladium acetate solution containing 0.3g Pd for 5 hours, dry at room temperature for 5 hours, dry at 120°C for 2 hours, and roast at 550°C for 4 hours to obtain the catalyst of Example 2 of the present invention.
[0025] The performance evaluation of the catalyst was carried out on a norm...
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