Processes for producing at least one light olefin

US9212105B2 · kind B2 · utility

Assignees

• SHANGHAI RESEARCH INSTITUTE OF PETROCHEMICAL TECHNOLOGY, SINOPEC · CN
• CHINA PETROLEUM & CHEMICAL CORPORATION · CN

Inventors

• Guozhen Qi · Shanghai, CN
• Siqing Zhong · Shanghai, CN
• Hongtao Wang · Beijing, CN
• Yongming Jin · Shanghai, CN

Key dates

• Filing date: Mar 3, 2011
• Grant date: Dec 15, 2015
• Expiry date: Sep 5, 2031

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P30/40
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

A process for producing at least one light olefin comprising: (a) contacting a first raw material comprising methanol with a least one catalyst in a first reaction zone to produce at least one light olefin and at least one inactivated catalyst; (b) transporting the at least one inactivated catalyst to a first regeneration zone to produce at least one first regenerated catalyst, and transporting a portion of the at least one first regenerated catalyst to the first reaction zone; (c) transporting another portion of the at least one first regenerated catalyst to a second regeneration zone to obtain at least one second regenerated catalyst; and (d) transporting the at least one second regenerated catalyst to a second reaction zone, and contacting the at least one second regenerated catalyst with a second raw material comprising C4 olefins to produce a product stream II comprising at least one light olefin.