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:
Aug. 17, 2021
Filed:
Jul. 09, 2018
China Petroleum & Chemical Corporation, Beijing, CN;
Shanghai Research Institute of Petrochemical Technology Sinopec, Shanghai, CN;
Le Zhao, Shanghai, CN;
Lianghua Wu, Shanghai, CN;
CHINA PETROLEUM & CHEMICAL CORPORATION, Beijing, CN;
SHANGHAI RESEARCH INSTITUTE OF PETROCHEMICAL TECHNOLOGY SINOPEC, Shanghai, CN;
Abstract
The present invention relates to a preheating process and a start-up process for the ammoxidation reaction. The preheating process or the start-up process at least includes the step of heating the catalyst bed in the ammoxidation reactor while controlling the reactor operation linear speed to 0.03-0.15 m/s. The start-up process of the present invention has the advantages such as the significantly reduced launch time compared with the prior art and the operation safety.