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:
Jul. 24, 2018
Filed:
Sep. 16, 2016
China Petroleum & Chemical Corporation, Beijing, CN;
Shanghai Research Institute of Petrochemical Technology Sinopec, Shanghai, CN;
CHINA PETROLEUM & CHEMICAL CORPORATION, Beijing, CN;
SHANGHAI RESEARCH INSTITUTE OF PETROCHEMICAL TECHNOLOGY SINOPEC, Shanghai, CN;
Abstract
The present invention relates to a method for preparing dimethyl ether from methanol which is carried out in a reaction device arranged with a plurality of catalyst bed layers connected in series, and comprises: dividing the reactant stream that contains methanol into n substreams, and feeding these different substreams into the reaction device through top feed ports or side feed ports between the catalyst bed layers of the reaction device for methanol-to-dimethyl ether reaction; wherein, the temperature T1 of the substream fed into the first catalyst bed layer is controlled within the following range: 290−50K1≤T1≤150K1−271K1+397.5; where, 1>K1≥0.5, and T1 is in unit of ° C.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile