Catalytic cracking sulfur reducing additive, preparation method thereof, and method for reducing sulfur content in catalytic cracking gasoline
A sulfur-reducing additive and catalytic cracking technology, which is applied in catalytic cracking, chemical instruments and methods, physical/chemical process catalysts, etc., can solve problems such as lower gasoline yield, reduced gasoline production efficiency, catalytic cracking catalyst poisoning, etc., to achieve Effects of increasing gasoline yield, reducing sulfur content, and increasing yield
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
preparation example Construction
[0018] The present invention provides a kind of preparation method of catalytic cracking sulfur reducing additive, and this method comprises the following steps:
[0019] (1) The molecular sieve, clay, pseudoboehmite and alumina sol are mixed and beaten for the first time to obtain the first slurry;
[0020] (2) mixing and beating the first slurry and the titanium-containing compound for the second time to obtain a second slurry;
[0021] (3) Drying and calcining the second slurry in sequence.
[0022] According to the present invention, in step (1), on a dry basis, relative to 100 parts by weight of the catalytic cracking sulfur reduction additive, the amount of the molecular sieve used is 25-45 parts by weight, preferably 30-40 parts by weight part; the consumption of the clay is 20-60 parts by weight, preferably 30-40 parts by weight; the consumption of the pseudo-boehmite is 10-20 parts by weight, preferably 12-18 parts by weight; the aluminum sol The amount used is 2-15...
Embodiment 1
[0052] This example is used to illustrate the preparation method of the catalytic cracking sulfur reducing additive of the present invention.
[0053] (1) 700.0 grams of REY molecular sieve slurry with a solid content of 30% by weight, 179.4 grams of pseudoboehmite, 192.7 grams of alumina sol and 325.0 grams of halloysite were added to the beating tank in sequence, mixed and beaten for 30 minutes to obtain the first slurry A1;
[0054] (2) Mix and beat the solution formed by the first slurry A1, 280.8 grams of tetrabutyl titanate and 59.0 grams of water for 20 minutes to obtain the second slurry B1;
[0055] (3) The second slurry B1 is spray-dried and roasted in sequence, washed with hot water, and then dried to obtain the sulfur-reducing additive SAC-1; the spray-drying temperature is 450°C; the roasting temperature is 500°C, and the roasting time is 1 hour .
[0056] Wherein, according to the calculation of the feeding amount, it is known that the content of titanium oxide ...
Embodiment 2
[0058] This example is used to illustrate the preparation method of the catalytic cracking sulfur reducing additive of the present invention.
[0059] (1) Add 700.0 grams of slurry consisting of 95 weight percent REY molecular sieves and 5 weight percent USY molecular sieves, 179.4 grams of pseudo-boehmite, 192.7 grams of aluminum sol and 257.1 grams of kaolin into the beating tank in sequence, with a solid content of 30% by weight, Mix and beat for 30 minutes to obtain the first slurry A2.
[0060] (2) The first slurry A2 was mixed with a solution formed by 199.8 g of tetrabutyl titanate and 42.0 g of water for beating, and the second slurry B2 was obtained after 30 minutes.
[0061] (3) The second slurry B2 is spray-dried and roasted in sequence, washed with hot water, and then dried to obtain the sulfur-reducing additive SAC-2; the spray-drying temperature is 450°C; the roasting temperature is 500°C, and the roasting time is 1 hour .
[0062] Wherein, according to the cal...
PUM
Login to View More Abstract
Description
Claims
Application Information
Login to View More