MUMBAI, India, June 30 -- Intellectual Property India has published a patent application (202527095491 A) filed by Chevron Phillips Chemical Company Lp on October 04, 2025, for Hydrocarbon Compositions, Solid Oxide And Chemically-Treated Solid Oxide Catalysts For The Pyrolysis Of Polyethylene, And Pyrolysis Of Polyethylene.
Inventors include Dockter, David W.; Mcdaniel, Max P.; and Clear, Kathy S..
The application for the patent was published on June 26, 2026, under issue no. 26/2026.
Abstract: Pyrolysis processes comprise contacting a waste polyolefin with a solid catalyst at a pyrolysis temperature to form a pyrolysis product containing C1-C10 hydrocarbons. In some instances, the solid catalyst can be a silica-coated alumina, a fluorided silica-coated alumina, or a sulfated alumina, while in other instances, the solid catalyst can be any suitable solid oxide or chemically-treated solid oxide that is characterized by a d50 average particle size from 5 to 12 µm and a particle size span from 0.7 to 1.7. Hydrocarbon compositions are formed from the pyrolysis of waste polyolefins with specific amounts of methane and higher carbon number hydrocarbons.
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