The first \"one-step\" process was developed, marking the completion of the 200,000 tons per year demonstration project for the comprehensive recycling of mixed plastic waste in Jieyang

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On January 3, 2025, the handover ceremony for the demonstration project on the comprehensive utilization of 200,000 tons per year of mixed waste plastics by Guangdong Dongyue Chemical Technology Co., Ltd. was held at the Dananhai Industrial Park in Jieyang. The project construction has been fully completed, and it has successfully entered the production phase. This project introduces a novel \"one-step\" process, namely the catalytic pyrolysis of mixed waste plastics (CPDCC), which converts mixed waste plastics directly into high-value products such as liquefied plastic pyrolysis gas (LPCG) and plastic pyrolysis light oil (PCLO). This is the first time such a method has been used on an international scale. Once the project is put into operation, it is expected to generate an annual output value of 1.243 billion yuan and annual tax payments of 265 million yuan. According to Dr. Zhang Jinqing, the head of research at Dongyue Chemical, this technology enables mixed plastic waste to be directly converted into high-value chemical raw materials such as propylene, ethylene, butylene, and mixed aromatics. It is reported that most of the previous chemical recycling processes for waste plastics were based on a “two-step method,” which involved a long process and significant losses. The “one-step method” shortens the process, requires low investment, offers high added value, and is environmentally friendly. The project was approved in June 2023, and construction began in March 2024. The total investment amounts to approximately 1.5 billion yuan, with a land area of around 215.39 mu. The project construction includes 18 individual components such as the raw material processing unit, pyrolysis unit, central control room, analysis and testing laboratory, and utility systems, with nearly 3,000 pieces of equipment to be purchased. This project requires high standards in terms of manufacturing processes and presents significant technical challenges. The construction contractor, China National Chemical Engineering Corporation Fourth Construction Co., Ltd., and the design team conducted numerous discussions and analyses, and resolved many difficulties during the construction and equipment installation phases. As a result, all scheduled milestones were successfully achieved, with simultaneous attention paid to safety, quality, and schedule, ensuring the smooth completion of the project.