China Petroleum Chemical Corporation

Research Institute of Petroleum Processing, Sinopec

Beiyan Chen

Jun Long

Huiping Tian

Yibin Luo

Xingtian Shu

Jiushun Zhang

Xue Yang

Yuxia Zhu

Wenbin Jiang

Mingde Xu

Ying Ouyang

Minggang Li

Haitao Song

Fei Ren

Li Zhuang

Jiasong Yan

Xiangtian Shu

The present invention discloses a catalytic cracking catalyst and a preparation process therefor. The catalytic cracking catalyst comprises a cracking active component, 10 wt %-70 wt % of a clay on the dry basis, and 10 wt %-40 wt % of an inorganic oxide binder (as oxide), relative to the weight of the catalytic cracking catalyst, wherein said cracking active component contains, relative to the weight of the catalytic cracking catalyst, 10 wt %-50 wt % of a modified Y-type zeolite on the dry basis and 0-40 wt % of other zeolite on the dry basis, wherein said modified Y-type zeolite is characterized by having a unit cell size of 2.420-2.440 nm; as percent by weight of the modified Y-type zeolite, a phosphorus content of 0.05-6%, a REOcontent of 0.03-10%, and an alumina content of less than 22%; and a specific hydroxy nest concentration of less than 0.35 mmol/g and more than 0.05 mmol/g.

Catalyst containing a modified Y-type zeolite and a preparation process thereof

The invention discloses a catalyst and a method for cracking hydrocarbons. The catalyst comprises, calculated by dry basis, 10&#x2dc;65 wt % ZSM-5 zeolite, 0&#x2dc;60 wt % clay, 15&#x2dc;60 wt % inorganic oxide binder, 0.5&#x2dc;15 wt % one or more metal additives selected from the metals of Group VIIIB and 2&#x2dc;25 wt % P additive, in which the metal additive is calculated by metal oxide and the P additive is calculated by PO. The method for cracking hydrocarbons using this catalyst increases the yield of FCC liquefied petroleum gas (LPG) and the octane number of FCC gasoline, as well as it increases the concentration of propylene in LPG dramatically.

Catalyst and a method for cracking hydrocarbons

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Beijing, China

Beiyan Chen