Sinopec has been granted an invention patent for: “A processing method for the fluidized cracking of waste plastics and a corresponding processing system”

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Sinopec has been granted an invention patent for “A processing method and processing system for the fluidized cracking of waste plastics”. August 12, 2025 – According to data from the Tianyancha app, Sinopec (600028) has obtained a new invention patent, titled “A processing method and processing system for the fluidized cracking of waste plastics”. The patent application number is CN202211057426.1, and the date of grant is August 12, 2025. Patent Abstract: This disclosure relates to a processing method and processing system for the fluidized cracking of waste plastics. This method includes the following steps: S1, feeding the waste plastic to be processed into a waste plastic liquefaction unit for liquefaction treatment to obtain liquefied waste plastic ； S2: Feed the liquefied waste plastic into the waste plastic viscosity-reduction unit for viscosity-reduction cracking treatment, to obtain oil derived from the liquefied waste plastic after such treatment and first dry gas ； S3. The liquefied waste plastic oil subjected to visbreaking is fed into the contact cracking reaction unit, where it comes into contact with the fluidized contact catalyst to undergo a cracking reaction, yielding reacted oil and gas as well as spent contact catalyst ； S4: The reaction gas oil is fed into a separation unit for separation, yielding second dry gas, liquefied gas, gasoline fractions, diesel fractions, and wax oil fractions. This disclosure achieves the resource utilization of waste plastics. Since the beginning of this year, Sinopec has obtained 2,087 new patent approvals, a decrease of 42.35% compared to the same period last year. Based on the financial data from the company’s 2024 annual report, the company invested 15.215 billion yuan in research and development in 2024, representing a 8.92% increase compared to the previous year. According to Tianyancha’s big data analysis, Sinopec Corporation has invested in 263 companies in total and participated in 15,698 bidding projects ； In terms of property-related information, there are 106 trademark entries, 88,810 patent entries, and 1,178 copyright entries ； In addition, the company holds 40 administrative licenses.