Core Viewpoint - Sinopec is leading the domestic industry in the recycling of waste plastics through a combination of independent research and international cooperation, establishing a comprehensive technical system from chemical recycling to physical regeneration [2][4]. Group 1: RPCC Technology Development - The RPCC technology developed by Sinopec's Research Institute represents the forefront of domestic chemical recycling of waste plastics, specifically targeting polyethylene (PE) and polypropylene (PP) [2]. - The RPCC technology features three main innovations: the ability to process mixed waste plastics containing varying levels of PVC, achieving a thermal oil yield exceeding 80%, and forming a complete closed-loop cycle from "plastic-waste plastic-olefins-resins-plastic" [7][8]. Group 2: Industrial Application and Investment - The RPCC technology is set to transition from laboratory to industrial application in 2024, with the RDC equipment being a core component of the first global chemical recycling industrial demonstration project for waste agricultural film [5]. - The Tahe Refining and Chemical's project, utilizing RPCC technology, has a total investment of 162 million yuan and aims to process 35,000 tons of waste agricultural film annually, converting it into pyrolysis oil to partially replace naphtha as a feedstock for ethylene production [5]. Group 3: Waste Plastic Pyrolysis Oil Processing - The processing of waste plastic pyrolysis oil is crucial due to its complex composition and high impurity content, necessitating deep processing to enhance quality [12][24]. - Key processing methods include dechlorination, hydrogenation refining, catalytic upgrading, and steam cracking, which are essential for transforming waste plastic pyrolysis oil into high-value products [12][22]. Group 4: Future Directions - Future development directions for the processing of waste plastic pyrolysis oil include improving analytical techniques for precise composition analysis, optimizing hydrogenation technologies, and developing integrated processing methods to address the challenges posed by diverse impurities [24].