Neste has patented a method for processing liquefied waste polymers (LWP) containing diolefins. The process involves steam stripping, hydrotreatment, distillation, and hydroprocessing to produce hydrogenated naphtha suitable for a steam cracker. The remaining fractions can be mixed with crude oil for further processing in an oil refinery. GlobalData’s report on Neste gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on Neste, Microscale biofuel reactors was a key innovation area identified from patents. Neste's grant share as of May 2024 was 53%. Grant share is based on the ratio of number of grants to total number of patents.
Method for processing liquefied waste plastic containing diolefins
A recently granted patent (Publication Number: US12006480B2) outlines a method for processing liquefied waste plastic (LWP) efficiently. The method involves steps such as subjecting the LWP stream to a steam stripper to obtain a distillate containing diolefins and naphtha, followed by hydrotreatment under specific conditions to produce a diolefin depleted distillate. This distillate is then separated into fractions including a naphtha fraction, which is further processed under hydroprocessing reaction conditions to produce hydrogenated naphtha.
Furthermore, the patent details various additional steps and conditions, such as the use of specific hydrotreatment and hydroprocessing catalysts, temperature and pressure ranges for the reactions, and the feeding of resulting fractions to different units like a steam cracker or a crude oil distillation unit. The method also allows for the utilization of different types of LWP, including waste plastic pyrolysis oil, and the mixing of fractions with crude oil for further processing in an oil refinery. Overall, the patent provides a comprehensive and detailed approach to efficiently process LWP and extract valuable products from it, showcasing innovation in waste plastic management and recycling.
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GlobalData’s Patent Analytics tracks patent filings and grants from official offices around the world. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.
