Preparation method of sulfur-reducing catalytic cracking aid
A catalytic cracking aid and sulfur reduction technology, used in catalyst activation/preparation, catalytic cracking, molecular sieve catalysts, etc., can solve the problems of reducing gasoline yield, declining gasoline production efficiency, catalytic cracking catalyst poisoning, etc., and reducing sulfur content. , The effect of reducing sulfur content and promoting catalytic conversion
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0025](1) Mix 99g of catalyst residue, 792g of kaolin, 45g of titanium tetrachloride, 44g of sodium silicate with 3000mL of water to make a slurry, spray-dry to form microspheres, the microsphere particles are 0~150μm, and the microspheres are calcined at 600℃ for 5h, Roasted microspheres;
[0026](2) Put 300g of calcined microspheres, 100mL of lye, 270mL of sodium silicate, 82mL of directing agent, 75mL of water obtained in step (1) into a crystallization reactor, hydrothermally crystallize at 95℃ for 36h, and filter to remove the mother liquor Afterwards, the filter material is washed with water, filtered, and dried to obtain a molecular sieve composite material;
[0027](3) Add 200 g of molecular sieve composite material obtained in step (2), 100 g of ammonium chloride, and 600 mL of water, add 5% hydrochloric acid, adjust the pH of the system to 3.0, exchange for 10 minutes at room temperature, filter, wash and filter, the exchange product is in Roast with steam at 550°C for 3 hours t...
Embodiment 2
[0032](1) Mix 166g of catalyst filter residue, 594g of kaolin, 45g of titanium sulfate, 24g of tetrabutyl titanate, 20g of corn flour with 4000mL of water, mix and make a slurry, spray dry into microspheres, the microsphere particles are 0~150μm, and the microspheres are at 700℃ Roasted for 3h to obtain roasted microspheres;
[0033](2) Put 200g of calcined microspheres, 40mL of lye, 350mL of sodium silicate, 60mL of directing agent, and 50mL of water obtained in step (1) into a crystallization reactor, hydrothermally crystallize at 110°C for 12h, and filter to remove the mother liquor Afterwards, the filter material is washed with water, filtered, and dried to obtain a molecular sieve composite material;
[0034](3) 150g of molecular sieve composite material obtained in step (2), 60g of ammonium chloride, and 450mL of water were added to 5% hydrochloric acid, the system pH=3.1, exchanged at room temperature for 40min, after filtering, washing and filtering, the exchange product Roasting ...
Embodiment 3
[0039](1) Mix 300g filter residue of the catalyst, 660g kaolin, 30g titanium oxide, 10g sodium hydroxide, 4000mL ionized water, and spray dry into microspheres. The microsphere particles are 0~150μm, and the microspheres are calcined at 800℃ for 2h to obtain Roasted microspheres;
[0040](2) Put 300g of calcined microspheres, 400mL of lye, 193mL of sodium silicate, 60mL of directing agent, and 130mL of water obtained in step (1) into a crystallization reactor, hydrothermally crystallize at 98°C for 22h, and filter to remove the mother liquor Afterwards, the filter material is washed with water, filtered, and dried to obtain a molecular sieve composite material;
[0041](3) Add 200 g of molecular sieve composite material obtained in step (2), 60 g of ammonium chloride, and 600 mL of water, add 5% hydrochloric acid, adjust the pH of the system to 3.3, exchange for 15 minutes at room temperature, filter, wash and filter, and repeat the above Exchange twice, calcining the exchange product at ...
PUM
| Property | Measurement | Unit |
|---|---|---|
| Specific surface | aaaaa | aaaaa |
| Pore volume | aaaaa | aaaaa |
| Specific surface | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More