Fluidized bed regenerator, device for preparing low-carbon olefins, and use thereof

US12296329B2 · kind B2 · utility

Assignee

• DALIAN INSTITUTE OF CHEMICAL PHYSICS, CHINESE ACADEMY OF SCIENCES · CN

Inventors

• Mao Ye · Dalian, CN
• Tao Zhang · Beijing, CN
• Jinling Zhang · Qinhuangdao City, CN
• Shuliang Xu · Dalian, CN
• Hailong Tang · Dalian, CN
• Xiangao Wang · Dalian, CN
• Cheng Zhang · Dalian, CN
• Jinming Jia · Dalian, CN
• Jing Wang · 安丰镇, CN
• Hua Li · Gongguan, TW
• Chenggong Li · Dalian, CN
• Zhongmin Liu · 东风镇, CN

Key dates

• Filing date: Oct 16, 2020
• Grant date: May 13, 2025
• Expiry date: Jul 17, 2041

Classification

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

Abstract

A fluidized bed regenerator, a device for preparing low-carbon olefins, and a use thereof are provided. The fluidized bed regenerator includes a second activation zone, a first activation zone, and a gas-solid separation zone from bottom to top; the second activation zone axially communicates with the gas-solid separation zone; the first activation zone is arranged on a periphery of a junction between the second activation zone and the gas-solid separation zone; the first activation zone is an annular cavity; n baffles are radially arranged in the first activation zone, and the n baffles divide the first activation zone into n first activation zone subzones; and a catalyst circulation hole is formed in each of n−1 of the baffles such that a catalyst entering the first activation zone flows in an annular direction.