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. 16, 2019
Filed:
Mar. 27, 2018
Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Liaoning Province, CN;
Zhongmin Liu, Liaoning Province, CN;
Zhihui Lv, Liaoning Province, CN;
Changqing He, Liaoning Province, CN;
Yu Liu, Liaoning Province, CN;
Yue Qi, Liaoning Province, CN;
Xiaojian Min, Liaoning Province, CN;
Gongwei Wang, Liaoning Province, CN;
Xiangao Wang, Liaoning Province, CN;
Jinling Zhang, Liaoning Province, CN;
Mao Ye, Liaoning Province, CN;
Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Liaoning Province, CN;
Abstract
Disclosed is a method for starting up fluidized reaction apparatus that is used for producing lower olefins from methanol or/and dimethyl ether. Said method includes after heating the catalyst bed of circulating fluidized catalytic reaction apparatus to above 200° C. or 300° C. by using a starting-up auxiliary heat source, feeding methanol or dimethyl ether raw materials to a reactor, whereby heat released by the reaction makes the temperature of the reaction system apparatus increase quickly to a designed temperature, consequently making the system reach normal operation state rapidly. Said method is suitable for starting up an exothermic fluidized catalytic reaction apparatus and can simplify the apparatus and operation, accordingly lowering the cost.