Sinopec has been granted an invention patent: “Dual-channel composite catalyst and its preparation method, as well as their application in the direct catalytic cracking of waste plastics to produce low-carbon olefins””

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Sinopec has been granted an invention patent: “Dual-channel composite catalyst and its preparation method, as well as their application in the direct catalytic cracking of waste plastics to produce low-carbon olefins.” According to data from the Tianyancha app, Sinopec (600028) has obtained a new invention patent; the title of this patent is “Dual-channel composite catalyst and its preparation method, as well as their application in the direct catalytic cracking of waste plastics to produce low-carbon olefins.” The patent application number is CN202210979155.9, and the date of grant is April 3, 2026. Patent abstract: This invention relates to the fields of catalysts and the recycling of polymer materials. It discloses a dual-channel composite catalyst, its preparation method, and its application in the direct catalytic pyrolysis of waste plastics to produce low-carbon olefins. The dual-channel composite catalyst comprises a modified ZSM?35 molecular sieve and short-rod-shaped mesoporous molecular sieves. The modified ZSM?35 molecular sieve consists of ZSM?35 molecular sieve along with boron oxide and metal oxides loaded on said ZSM?35 molecular sieve; based on the total weight of the dual-channel composite catalyst, the content of the modified ZSM?35 molecular sieve is 46–70 weight%, while the content of the short-rod-shaped mesoporous molecular sieves is 30–54 weight%. This dual-channel composite catalyst addresses the issue of waste plastic recycling while also increasing the production of low-carbon olefins, which are important chemical raw materials, in the direct pyrolysis of waste plastics; it represents a new approach for the one-step catalytic conversion and utilization of waste plastics. Since the beginning of this year, Sinopec has obtained 1,366 new patent approvals, a 52.8% increase compared to the same period last year. Based on the financial data from the company’s 2025 annual report, the company invested 15.863 billion yuan in research and development in 2025, a 4.26% increase compared to the previous year. According to big data analysis by Tianyancha, Sinopec Corporation has invested in 269 companies in total and participated in 17,743 bidding projects ； Regarding property-related clues, there are 106 trademark records, 90,931 patent records, and 1,503 copyright records ； In addition, the company holds 41 administrative licenses.