Preparation and application of heavy metal pollution-resisting dual functional solid cocatalyst
A co-catalyst and dual-function technology, which is applied in the preparation and application of dual-function solid co-catalysts, can solve the problems of insufficient equilibrium conversion rate of the device system, limited hydrofining capacity, and influence on stable operation, etc. The effect of material cracking conversion performance, non-toxic preparation process, mild and simple conditions
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[0036] Example 1
[0037] Take 330 grams of REY molecular sieve (produced by Nankai University Catalyst Factory, rare earth oxide 14.0% by weight, solid content 85% by weight), impregnated with 400 ml of 4% by weight lanthanum chloride (chemically pure reagent, Beijing Chemical Reagent Company) solution and mixed Homogeneous, dried at 120°C for 1 hour and then calcined at 500°C for 4 hours.
[0038] Add 150 grams of antimony trioxide (industrial product, produced by Jinan Chenxu Chemical Co., Ltd., with an average particle size of 0.3 to 0.9 microns, 98% by weight) in 500 ml of water. Co., Ltd.) grinding and dispersing into a slurry.
[0039]Add 3 liters of water to a 10-liter gel-forming tank, add the above-mentioned impregnated and roasted REY molecular sieve and the antimony trioxide slurry after grinding and dispersing, and add 660 grams of lanthanum carbonate powder (industrial product, Zibo Rongruida Powder Material Factory, 95% by weight) after beating for 30 minutes,...
Example Embodiment
[0040] Example 2
[0041] Take 340 grams of REUSY molecular sieve (produced by Nankai University Catalyst Factory, rare earth oxide 7.0% by weight, solid content 85% by weight), impregnated with 400 ml of 10% by weight lanthanum chloride (same as above) solution and mixed well, and dried at 110 ° C for 2 hours. It was calcined at 570°C for 1 hour.
[0042] Add 3 liters of water to a 10-liter glue tank, add the above-mentioned rare earth impregnated and roasted USY molecular sieve and 640 grams of lanthanum carbonate (same as above) powder and beat for 15 minutes, add 160 grams of colloidal antimony pentoxide (industrial product, Guangdong Guanghua Technology) Co., Ltd., with a solid content of 30% by weight and an average particle size of 30 nanometers), the colloid continued to be beaten for 15 minutes.
[0043] 250 grams of pseudo-boehmite (industrial products, Al 2 O 3 60% by weight, produced by Chinalco Shandong Aluminum Factory) and 600 ml of water were stirred at 60°C...
Example Embodiment
[0044] Example 3
[0045] Take 120 grams of REHY molecular sieve (produced by Nankai University Catalyst Factory, rare earth oxide 6.0% by weight, solid content 85% by weight), and use 8% by weight of cerium-rich mixed rare earth (industrial product, produced by Baotou Rare Earth Factory, Inner Mongolia, of which CeO 2 50wt%, La 2 O 3 21wt%, Pr 2 O 3 14wt%, Nd 2 O 3 13 wt %) solution in 200 ml and mixed uniformly, dried at 110°C for 2 hours and then calcined at 550°C for 2 hours.
[0046] Add 2 liters of water to a 10-liter glue tank, add the above-mentioned immersion and roasted REHY molecular sieve and 650 grams of lanthanum carbonate powder (same as above) and beat for 15 minutes, then add 470 grams of colloidal antimony pentoxide (same as above) and continue beating for 15 minutes.
[0047] Stir 530 grams of pseudo-boehmite (same as above) and 2 liters of water at 60 ° C and add 180 milliliters of 15 wt % hydrochloric acid (same as above), add to the above mixture af...
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