CATALYTIC CRACKING CATALYST AND PREPARATION METHOD THEREFOR

WIPO Patent Application WO/2018/153302

A1

A catalytic cracking catalyst and a preparation method therefor. The catalyst comprises a modified Y-type molecular sieve containing rare earth, an aluminum oxide binder comprising a catalyst, and clay. The content of oxidized rare earth is about 4% to 12% by weight, the content of phosphorus is 0 to 10% by weight, the content of sodium oxide is not more than about 1.0% by weight, the total pore volume is about 0.36 mL/g to 0.48 mL/g, the pore volume of secondary pores the pore size of which is 2 nm-100 nm occupies for about 20% to 40% of the total pore volume, the cell constant is about 2.440 nm to 2.455 nm, the content of the non-skeleton aluminum is not higher than about 10%, the lattice collapse temperature is not lower than about 1060ºC, and a ratio of B acid to L acid is not less than about 3.50 in an total acid amount of the modified Y-type molecular sieve measured at 200ºC by using a pyridine adsorption infrared method. When the catalyst is used in heavy oil catalytic cracking, the catalyst has a higher heavy oil conversion activity and a lower coke selectivity, and has a higher gasoline yield, a higher liquefied gas yield, a higher light oil yield and a higher total liquid yield.

ZHOU LINGPING (CN)
ZHANG WEILIN (CN)
XU MINGDE (CN)
CHEN ZHENYU (CN)
TIAN HUIPING (CN)
ZHU YUXIA (CN)

PCT/CN2018/076430

August 30, 2018

February 12, 2018

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CHINA PETROLEUM & CHEM CORP (CN)
SINOPEC RES INST PETROLEUM (CN)

B01J35/10; B01J29/08; C01B39/24; C10G11/04

CN102020289A	2011-04-20
CN103449471A	2013-12-18
US20130131419A1	2013-05-23
RU2509605C1	2014-03-20

CHINA PATENT AGENT (H.K.) LTD. (CN)

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