Fluidized bed reactor, reaction regeneration apparatus, process for preparing olefins, and process for preparing aromatic hydrocarbons

US9895671B2 · kind B2 · utility

Assignees

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

Inventors

• Weimin Yang · Shanghai, CN
• Xiaohong Li · Richland, US
• Siqing Zhong · Shanghai, CN
• Guozhen Qi · Shanghai, CN
• Jun Xu · Gaithersburg, US
• Zhinan Yu · Shanghai, CN

Key dates

• Filing date: Oct 13, 2015
• Grant date: Feb 20, 2018
• Expiry date: Nov 25, 2035

Classification

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

Abstract

A fluidized bed reactor is provided, comprising an inlet zone at a lower position, an outlet zone at an upper position, and a reaction zone between the inlet zone and the outlet zone. A guide plate with through holes is disposed in the reaction zone, comprising a dense channel region in an intermediate region thereof and a sparse channel region disposed on a periphery thereof and encompassing the dense channel region. Catalysts in said fluidized bed reactor can be homogeneously distributed in the reaction zone thereof, whereby the reaction efficiency can be improved. A reaction regeneration apparatus comprising said fluidized bed reactor, and a process for preparing olefins from oxygenates and a process for preparing aromatic hydrocarbons from oxygenates using the reaction regeneration apparatus.