The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 16, 2026
Filed:
Jun. 24, 2021
China Petroleum & Chemical Corporation, Beijing, CN;
Research Institute of Petroleum Processing, Sinopec, Beijing, CN;
Lei Han, Beijing, CN;
Wei Lin, Beijing, CN;
Peng Wang, Beijing, CN;
Haitao Song, Beijing, CN;
Lixia Wang, Beijing, CN;
Xiang Zhou, Beijing, CN;
Liuzhou Zhao, Beijing, CN;
Xueguo Zheng, Beijing, CN;
CHINA PETROLEUM & CHEMICAL CORPORATION, Beijing, CN;
RESEARCH INSTITUTE OF PETROLEUM PROCESSING, SINOPEC, Beijing, CN;
Abstract
A ZSM-5/β core-shell molecular sieve has a core composed of at least two crystal grains of ZSM-5 molecular sieve and a shell composed of a plurality of crystal grains of β molecular sieve. The ZSM-5 molecular sieve grains has an average grain size of 0.05-15 μm. The core-shell molecular sieve has a shell coverage of 50-100%, a shell thickness of 10-2000 nm, and an average grain size of the β molecular sieve grains in the shell of 10-500 nm. A ratio of a height of a diffraction peak at 2θ=22.4° to a height of a diffraction peak at 2θ=23.1° in an X-ray diffraction pattern of the ZSM-5/β core-shell molecular sieve is 0.1-10:1.