Research Institute of Petroleum Processing, Sinopec

China Petroleum Chemical Corporation

China Petrochemical Corporation

Jinghui Deng

Jun Long

Yibin Luo

Xue Yang

Yuxia Zhu

Ying Ouyang

Xinjie Zhang

Fei Ren

Jinyu Zheng

Haijing Wang

Guoqiang Gao

Xiangwei Li

Lishan Tong

Weisun Feng

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 Iof the peak at 2&#x3b8;=11.8&#xb1;0.1&#xb0; to the strength Iof the peak at 2&#x3b8;=12.3&#xb1;0.1&#xb0; 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.

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

A process for vapor phase hydrogenation of maleic anhydride and/or succinic anhydride to .gamma.-butyrolactone, comprising contacting an alcoholic solution of a feedstock anhydride with reduced Cu-Zn-Cr-Zr catalyst under the conditions of hydrogenation.

Process for the preparation of gamma-butyrolactone

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Jinghui Deng