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:
Mar. 06, 2018
Filed:
Apr. 08, 2014
Shanghai BI KE Clean Energy Technology Co., Ltd., Shanghai, CN;
Fan Zhang, Shanghai, CN;
Yijun Wang, Shanghai, CN;
Guo Rui, Shanghai, CN;
Yongsheng Gan, Shanghai, CN;
Xiaomang Zhang, Shanghai, CN;
SHANGHAI BI KE CLEAN ENERGY TECHNOLOGY CO., LTD., Shanghai, CN;
Abstract
The invention provides a mixed molecular sieve catalyst, comprising 5-30 wt % Y molecular sieve, 5-30 wt % ZSM-5 molecular sieve and the balance of matrix component and binder component. The invention further provides a method of preparing the mixed molecular sieve catalyst, comprising the following steps: mixing the Y molecular sieve, the ZSM-5 molecular sieve with a matrix material, a binder precursor, a pore former, a dispersant and water to formulate an aqueous slurry; spray drying the slurry; and baking. The invention further provides a method of preparing olefins from methanol with the use of the catalyst. By use of the catalyst of the invention, the selectivity to Cand Colefins is improved significantly.