Sinopec has been granted an invention patent: “Method and apparatus for converting residue oil into light distillate oil””

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According to data from the Tianyancha app, Sinopec (600028) has obtained a new invention patent, titled “Method and apparatus for converting residue oil into light distillate oil”. The patent application number is CN202210508808.5, and it was granted on August 26, 2025. Patent abstract: The present invention discloses a method and apparatus for converting residue oil into light distillates. The method includes: (1) catalytic hydrogenation of the residue oil feedstock to obtain a first component comprising wax oil, a second component comprising unconverted oil, and a first light distillate ； (2) The second component is deasphalted to yield a third component containing deasphalted oil and a fourth component containing deoiled asphalt ； (3) The third component and the first component are catalytically cracked to yield a fifth component comprising catalytic cracking cycle oil, a sixth component comprising catalytic slurry, and a second light distillate oil ； (4) The solid-removal treatment of the sixth component yields a seventh component containing catalytically purified slurry and an eighth component containing concentrated slurry ； (5) The said fifth component and/or seventh component are all or partially recycled back to the residue feedstock for catalytic hydrogenation ； (6) The fourth and eighth components, after coking treatment, yield the third light distillate oil. The method of the present invention significantly improves the residue conversion rate and suppresses precipitation in the hydrogenation reaction. Since the beginning of this year, Sinopec has obtained 2,229 new patent approvals, a decrease of 41.4% 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 this period, representing a 3.05% increase compared to the previous year.