用于一步法制备甲基丙烯酸甲酯的流化床催化剂组合物及其应用
By preparing a composite spherical catalyst composition of Ni-Al-Ti LDOs and K/Mg-Al LDOs, the problems of low catalyst activity and rapid deactivation in fluidized beds were solved, achieving efficient preparation of methyl methacrylate and long-life use of the catalyst in a fluidized bed reactor.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- EAST CHINA UNIV OF SCI & TECH
- Filing Date
- 2026-04-30
- Publication Date
- 2026-07-17
AI Technical Summary
Existing catalysts exhibit significantly reduced catalytic activity in fluidized beds, failing to achieve excellent catalytic performance. Furthermore, catalyst deactivation is too rapid, and fixed-bed reactors suffer from localized hot spots in the catalyst bed.
A combination of Ni-Al-Ti LDOs and K/Mg-Al LDOs composite spherical catalysts was prepared by precipitation, emulsification, granulation, calcination and reduction, and used for one-step preparation of methyl methacrylate in a fluidized bed reactor. The ratio of the catalyst composition and the reaction conditions were optimized.
It achieves excellent catalytic performance in fluidized beds, extends the service life of the catalyst, and allows the catalyst to be regenerated and reused, avoiding rapid deactivation of the catalyst due to carbon buildup and hot spots.
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