The post-treatment system of the styrene-butadiene rubber unit in the 1.2 million tons per year ethylene project of Dushanzi Petrochemical’s Tarim Phase II was successfully started up for the first time

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The post-treatment system of the styrene-butadiene rubber unit in the 1.2 million tons per year ethylene project of Dushanzi Petrochemical’s Tarim Phase II was successfully started up for the first time. It marks a substantial breakthrough in the construction of the key downstream units of this **pilot project. It is a tangible outcome of the company’s approach of using operations to drive construction, stability, and improvement, and it lays a solid foundation for the safe and efficient progress of the project as well as for its successful commissioning from the very first attempt. The test run was smooth, efficient, and orderly. It takes only 7 minutes from raw material feeding to the successful production of qualified gel particles in the dryer ； Subsequently, the compactor successfully produced the first piece of uniform rubber block, the packaging line was put into operation simultaneously, and the entire post-treatment process was enabled to operate in a continuous manner from start to finish. At 17:06 on that day, the system stopped safely and smoothly in accordance with the established procedure. From feed intake to the production of qualified products, the entire process takes only 15 minutes; the various stages are closely linked, and the parameters remain stable and under control, thus successfully achieving the goal of a high-quality first run. The reprocessing unit was the first to carry out reverse operation, allowing for the early identification and correction of issues related to equipment, instruments, electrical systems, and operational interfaces; this effectively tested the quality of the construction and installation as well as the reliability of system operation. For Dushanzi Petrochemical, this commissioning process helped to train the operating staff and gain initial experience in starting up the plant. It marked a smooth transition from the construction phase to the production preparation phase, removing obstacles and boosting confidence for the subsequent successful operation of key units such as those for upstream cracking. It is a crucial step in ensuring the successful commissioning of the entire project at once and achieving operational efficiency as soon as possible. Since the official commencement of construction in July 2024, all teams involved in the project have worked hard to overcome various challenges, including extreme weather conditions, complex geological conditions, and tight deadlines, while coordinating the progress of all construction tasks. At the final stage of the project sprint, the personnel from all participating units fulfilled their duties and worked together to overcome challenges, demonstrating a strong sense of responsibility. Once the unit was successfully commissioned, the project team promptly analyzed and summarized the experience gained from the testing phase. In collaboration with various relevant parties, they carried out a thorough inspection, cleaning, and maintenance of the production line to ensure its long-term stable operation. Next, the project team will continue to strengthen accountability, steadily advance key tasks such as the commissioning of subsequent units and intermediate handovers, and make every effort to ensure that the facility can operate successfully, stably, over extended periods, and generate profits. This will help to turn the Tarim Phase II ethylene project into a high-standard **model project**, thereby providing strong impetus for the upgrading and development of the local industry.