Catalytic cracking catalyst having a rare earth-containing Y zeolite and a preparation process thereof

US9656255B2 · kind B2 · utility

Assignees

• CHINA PETROLEUM & CHEMICAL CORPORATION · CN
• RESEARCH INSTITUTE OF PETROLEUM PROCESSING, SINOPEC · CN

Inventors

• Jun Long · Beijing, CN
• Yuxia Zhu · Beijing, CN
• Yibin Luo · Beijing, CN
• Jinghui Deng · Beijing, CN
• Jinyu Zheng · Beijing, CN
• Fei Ren · Beijing, CN
• Xue Yang · Beijing, CN
• Ying Ouyang · Beijing, CN

Key dates

• Filing date: Jun 27, 2013
• Grant date: May 23, 2017
• Expiry date: Jul 23, 2035

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01J2235/05
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

The present invention relates to a catalytic cracking catalyst and a preparation process thereof, the catalytic cracking catalyst has a cracking active component, an optional mesoporous aluminosilicate material, a clay and a binder, wherein said cracking active component comprises, substantially consists of or consists of: a rare earth-containing Y zeolite, an optional other Y zeolite, and an optional MFI-structured zeolite, said rare earth-containing Y zeolite has a rare earth content as rare earth oxide of 10-25 wt %, e.g. 11-23 wt %; a unit cell size of 2.440-2.472 nm, e.g. 2.450-2.470 nm; a crystallinity of 35-65%, e.g. 40-60%; a Si/Al atom ratio in the skeleton of 2.5-5.0; and a product of the ratio of the strength I1 of the peak at 2θ=11.8±0.1° to the strength I2 of the peak at 2θ=12.3±0.1° in the X-ray diffraction spectrogram of the zeolite and the weight percent of rare earth as rare earth oxide in the zeolite of higher than 48, e.g. higher than 55.