US 10,888,848 B2
Catalytic cracking catalyst and preparation thereof
Lingping Zhou, Beijing (CN); Weilin Zhang, Beijing (CN); Mingde Xu, Beijing (CN); Zhenyu Chen, Beijing (CN); Huiping Tian, Beijing (CN); and Yuxia Zhu, Beijing (CN)
Assigned to CHINA PETROLEUM & CHEMICAL CORPORATION, Beijing (CN); and RESEARCH INSTITUTE OF PETROLEUM PROCESSING, SINOPEC, Beijing (CN)
Appl. No. 16/484,418
Filed by CHINA PETROLEUM & CHEMICAL CORPORATION, Beijing (CN); and RESEARCH INSTITUTE OF PETROLEUM PROCESSING, SINOPEC, Beijing (CN)
PCT Filed Feb. 12, 2018, PCT No. PCT/CN2018/076430
§ 371(c)(1), (2) Date Aug. 7, 2019,
PCT Pub. No. WO2018/153302, PCT Pub. Date Aug. 30, 2018.
Claims priority of application No. 2017 1 0096449 (CN), filed on Feb. 22, 2017; and application No. 2017 1 0097154 (CN), filed on Feb. 22, 2017.
Prior Publication US 2019/0351396 A1, Nov. 21, 2019
Int. Cl. B01J 29/06 (2006.01); B01J 29/08 (2006.01); B01J 35/10 (2006.01); C01B 39/24 (2006.01); C10G 11/04 (2006.01); B01J 35/00 (2006.01); B01J 37/28 (2006.01); B01J 37/02 (2006.01); B01J 37/00 (2006.01); B01J 37/10 (2006.01); B01J 37/30 (2006.01)
CPC B01J 29/084 (2013.01) [B01J 29/085 (2013.01); B01J 29/088 (2013.01); B01J 35/002 (2013.01); B01J 35/0006 (2013.01); B01J 35/109 (2013.01); B01J 35/1038 (2013.01); B01J 35/1042 (2013.01); B01J 35/1061 (2013.01); B01J 35/1066 (2013.01); B01J 37/0009 (2013.01); B01J 37/0045 (2013.01); B01J 37/0201 (2013.01); B01J 37/10 (2013.01); B01J 37/28 (2013.01); B01J 37/30 (2013.01); C01B 39/24 (2013.01); C10G 11/04 (2013.01); B01J 2229/32 (2013.01); B01J 2229/36 (2013.01); B01J 2229/42 (2013.01); C07C 2529/06 (2013.01); C07C 2529/08 (2013.01); C10G 2300/70 (2013.01)] 20 Claims
 
1. A catalytic cracking catalyst, comprising from about 10% to about 50% by weight, on a dry basis, of a rare earth modified Y-type molecular sieve, about 2% to about 40% by weight, on a dry basis, of an additive-containing alumina, and about 10% to about 80% by weight, on a dry basis, of clay; wherein the additive-containing alumina comprises, on a dry basis and based on the weight of the additive-containing alumina, about 60% to about 99.5% by weight of alumina and about 0.5% to about 40% by weight of an additive that is one or more selected from the group consisting of compounds containing alkaline earth metal, lanthanide metal, silicon, gallium, boron and/or phosphorus; the rare earth modified Y-type molecular sieve has a rare earth oxide content of about 4% to about 12% by weight, a phosphorus content of about 0% to about 10% by weight on the basis of P2O5, a sodium oxide content of no more than about 1.0% by weight, a total pore volume of about 0.36 mL/g to about 0.48 mL/g, a percentage of the pore volume of secondary pores having a pore size of 2-100 nm to the total pore volume of the modified Y-type molecular sieve of about 20% to about 40%, a lattice constant of about 2.440-2.455 nm, a percentage of non-framework aluminum content to the total aluminum content of the modified Y-type molecular sieve of no more than about 10%, a lattice collapse temperature of not lower than about 1060° C., and a ratio of B acid to L acid in the total acid content of the modified Y-type molecular sieve of no less than about 3.5, as determined by pyridine adsorption infrared spectroscopy at 200° C.