Sinopec has been granted an invention patent: “Dehydrogenation catalyst, its preparation method and application, as well as a method for the dehydrogenation of alkylbenzenes””
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According to data from the Tianyancha app, Sinopec (600028) has obtained a new invention patent, titled “Dehydrogenation catalyst and its preparation method and application, as well as a method for dehydrogenating alkylbenzenes”. The patent application number is CN202311552645.1, and the date of approval is January 27, 2026. Patent Abstract: The present invention relates to the field of dehydrogenation catalysis, and specifically to a dehydrogenation catalyst, its preparation method and applications, as well as a method for the dehydrogenation of oxidized alkylbenzenes ； Based on the total weight of the catalyst, this dehydrogenation catalyst comprises: Fe2O3, K2O, CeO2, Co3O4, oxides of metals from Group VIB, MnO2, and oxides of metals from Group IVB ； The oxygen desorption amount of the dehydrogenation catalyst in the O2-TPD test is greater than 8.2 mmol/g. The catalyst surface is rich in oxygen vacancies (the oxygen desorption amount in O2-TPD tests is greater than 8.2 mmol/g), which significantly enhances the mobility of active species on the catalyst surface. This dehydrogenation catalyst is used in the reaction of oxidizing alkylarenes (such as ethylbenzene) to dehydrogenate them into allylarenes (such as styrene), and it features high catalytic activity and good stability. Since the beginning of this year, Sinopec has obtained 485 new patent approvals, a 136.59% increase compared to the same period last year. Based on the company’s financial figures for the first half of 2025, the company invested 6.186 billion yuan in research and development during that period, representing a 3.05% increase compared to the previous year.
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