The high-end polyolefin new material project at Jiangsu Nantong Blue Sea New Materials Company has commenced full-scale construction

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On the morning of March 15, Lanhai New Materials Company held the groundbreaking ceremony for the high-end polyolefin new materials project, marking the official entry of the project construction into a new phase characterized by the comprehensive development of the key core facilities. The high-end polyolefin new materials project plans to build 5 new production units, including an electrolytic water hydrogen production unit, a POE unit, an FDPE unit, and a 1-hexene/1-octene unit. At present, the preparation work for the construction site is nearing completion; 29 out of the 47 main project units have received formal approval. Construction is scheduled to begin on 19 projects in March and 15 projects in April, with all projects set to start by the end of the first half of the year. On February 26 of this year, the Tongzhou Bay River-Sea Integrated Development Demonstration Zone issued a notice to seek public opinions on the environmental impact assessment for the high-end polyolefin new materials project of Blue Sea New Materials (Tongzhou Bay) Co., Ltd. (re-submitted for approval). Construction location: Tongzhou Bay Green Chemical Industry Expansion Zone (main port)
Nature of construction: New construction
Contents of construction: 200,000 t/a FDPE plant, 2×25,000 t/a EPDM plants, 100,000 t/a POE plant, 100,000 t/a 1-hexene/1-octene plant, 2×1,000 Nm3/h electrolytic water hydrogen production plants, along with associated utility systems and auxiliary facilities
Total investment: 1,011,146 million yuan
Land area: The total land area is approximately 4,644 mu; the construction of this project will involve approximately 2,289 mu of land, with about 2,355 mu reserved for other purposes
Number of employees: This is a petrochemical project, with a total workforce of 539 people, including 509 operators and 30 managers
Working system: 4-shift, 3-operation system; annual operating time for the plants is 8,000 hours
Construction period: 24 months
According to the environmental impact assessment, due to process limitations, the POE plant is prone to equipment blockage caused by oligomers, so its annual operating time is set at 7,200 hours. The environmental impact assessment report for the high-end polyolefin new materials project of Blue Sea New Materials (Tongzhou Bay) Co., Ltd. has been approved by the environmental authorities, and the project is currently under construction. Due to significant changes during the design process, re-submission is required. During the construction of the original project, while keeping the overall process flow unchanged, optimizations were made to the project’s processes, layout, auxiliary facilities, and environmental control measures. The main adjustments included: 1) Changes to the process for the EPDM rubber production unit: the production process was changed from Italian IPT technology to a technology developed independently by CNPC ； 2) Changes in the general layout: The locations of production units, utility systems, auxiliary facilities, and environmental protection facilities have all changed; the number of recirculating water facilities has increased from one to two ； 3) Changes have occurred in the waste gas treatment measures and approaches: the RTO at the wastewater treatment plant has been replaced by a TO. The treatment method for the recycled waste gas has been changed from feeding it through a fuel gas pipeline network to burning it in a TO furnace. On August 28, 2024, the preliminary design for the first phase of the high-end polyolefin materials project at Lanhai New Materials passed expert review, creating the conditions for the rapid commencement of actual construction work on the facility. On September 26, 2024, the high-end polyolefin new materials project of Sinopec Blue Ocean New Materials (Tongzhou Bay) Company commenced construction in Nantong, Jiangsu. In addition, Lanhai New Materials has also invested in projects related to upstream raw materials. On August 24, 2024, the first public announcement regarding the environmental impact assessment for Lanhai New Materials (Tongzhou Bay) Co., Ltd.’s ethane/light hydrocarbons comprehensive utilization project was released. Project overview: 250,000 tons/year EDH unit, 1 million tons/year ethylene cracking unit, 50,000 standard cubic meters/hour PSA unit, 450,000 tons/year FDPE unit (gas-phase method), 200,000 tons/year FDPE unit (solution method), 100,000 tons/year 1-hexene/1-octene unit, 50,000 tons/year butadiene extraction unit, 60,000/20,000 tons/year MTBE/butene-1 unit, 50,000 tons/year low cis-cis-butadiene rubber unit, 100,000 tons/year POE unit, 200,000 tons/year synthetic ammonia unit, 200,000 tons/year vinyl acetate unit, 400,000 tons/year PP unit, along with supporting utility systems and auxiliary facilities.