Ethylbenzene dehydrogenation catalysts, their preparation methods and applications, and ethylbenzene dehydrogenation methods
By using a catalyst composed of composite metal oxides and carbon-doped modified boron nitride, the problems of catalyst activity and stability in the dehydrogenation of ethylbenzene to styrene were solved, achieving efficient ethylbenzene conversion and styrene selectivity, which is suitable for industrial applications.
CN122298466APending Publication Date: 2026-06-30CHINA PETROLEUM & CHEMICAL CORP +1
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- CHINA PETROLEUM & CHEMICAL CORP
- Filing Date
- 2024-12-31
- Publication Date
- 2026-06-30
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Figure CN122298466A_ABST
Abstract
This invention relates to the field of dehydrogenation catalysis in chemical catalysis, and discloses an ethylbenzene dehydrogenation catalyst, its preparation method and application, as well as a method for ethylbenzene dehydrogenation. The ethylbenzene dehydrogenation catalyst comprises: 85wt%-95wt% of a composite metal oxide and 5wt%-15wt% of carbon-doped modified boron nitride; based on the total mass of the catalyst, the composite metal oxide contains 55wt%-76wt% Fe₂O₃, 4.8wt%-10.2wt% K₂O, 4.6wt%-11.4wt% CeO₂, 1.2wt%-4.5wt% MoO₃, 0.5wt%-3wt% MnO₂, 0.5wt%-2.8wt% NiO, and 0.3wt%-2.6wt% Co₃O₄. The catalyst of this invention, when applied to the ethylbenzene dehydrogenation reaction, exhibits high catalytic activity, high selectivity, and high stability.
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