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:
Apr. 19, 2022
Filed:
Aug. 14, 2020
Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan, CN;
Shanxi Lu'an Mining (Group) Co., Ltd., Changzhi, CN;
Weibin Fan, Taiyuan, CN;
Dezhi Shi, Taiyuan, CN;
Huaqing Zhu, Taiyuan, CN;
Mei Dong, Taiyuan, CN;
Jianguo Wang, Taiyuan, CN;
Zhiwei Wu, Taiyuan, CN;
Weiyong Jiao, Taiyuan, CN;
Junyi Liu, Changzhi, CN;
Dongfei Wang, Changzhi, CN;
Jinbo Li, Changzhi, CN;
Yanbin Cui, Changzhi, CN;
Yibo Zhang, Changzhi, CN;
Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan, CN;
Shanxi Lu'an Mining (Group) Co., Ltd., Changzhi, CN;
Abstract
An aromatization catalyst and preparation process and use thereof is set forth. The catalyst comprises an inorganic oxide and a modified Ga-ZSM-5 zeolite, which comprises a modified ZSM-5 zeolite with a hierarchical macro-meso-microporosity and gallium deposited in channels of and/or on surfaces of the modified ZSM-5 zeolite. The hierarchical porosity of the modified ZSM-5 zeolite in the catalyst can reduce diffusion resistance of products during the aromatization reaction, thereby retarding carbon depositing rate and substantially improving catalytic activity, aromatic hydrocarbon selectivity, stability and lifetime of the catalyst. When being used in aromatization of propane, the catalyst exhibits a high stability, a lifetime of more than 320 hours, and a selectivity to aromatic hydrocarbons of up to 73.3 wt. %.