Environmental Impact Assessment Announcement for Yantai Wanhua’s Plan to Build a 100,000-ton-per-year high-end α-olefins facility
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Yantai Wanhua Plans to Build a 100,000-Ton Annual High-End α-Olefin Facility; Environmental Impact Assessment Announcement. Olefin Production from Coal (Methanol) – Environmental Impact Assessment Announcement for Wanhua Chemical’s High-End α-Olefin Project. Author: Hua Xiaobei; Source: Coal Chemical Industry Information Network; Views: 532; Updated on: October 18, 2023. On October 12, the Yantai Ecology and Environment Bureau issued announcements regarding the acceptance of several environmental impact assessment documents related to Wanhua Chemical. The projects in question include: Wanhua Chemical Group Co., Ltd.’s 30,000-ton annual high-absorbency resin production facility, Wanhua Chemical Group Co., Ltd.’s 100,000-ton annual high-end α-olefin facility, Wanhua Chemical (Penglai) Co., Ltd.’s second-phase acrylate production project, and Wanhua Chemical (Penglai) Co., Ltd.’s integrated specialty engineering plastics production project. ——100,000-ton-per-year high-end α-olefins project. Constructor: Wanhua Chemical Group Co., Ltd. Nature of the project: New construction project. Project overview: Construction of a new production facility for high-end α-olefins with a capacity of 100,000 tons per year, along with associated utility systems and auxiliary facilities. Industry classification and code: C2614 – Manufacturing of organic chemical raw materials. Location: Within the existing Wanhua Chemical plant complex in Yantai Chemical Industry Park, Yantai City, Shandong Province. Alpha-olefins are widely used, primarily in the synthesis of polyethylene. Linear α-olefins refer to straight-chain monoenes in which the double bond is located at the end of the molecular chain; in industrial production, they usually denote high-carbon straight-chain terminal olefins with a carbon count of C4+. Their main application areas are shown in the table below.
As α-olefins used as copolymerizing monomers for polyolefins, they are mostly C4–C8 olefins. 1-Butene, 1-hexene, and 1-octene, when copolymerized with ethylene, can be used to produce high-density polyethylene (HDPE), linear low-density polyethylene (LLDPE), and polyolefin elastomers (POE). They can also be copolymerized with ethylene and propylene to yield terpolypropylene of propylene/ethylene/butene, or copolymerized with propylene to produce butene-copolymerized propylene. Among them, the α-olefins used in polyolefin copolymerization account for 70% or more of the total consumption. High-end α-olefins (1-octene, 1-hexene) have a low flow rate, resulting in a supply shortage in the market; they are widely used in Wanhua’s existing production facilities. This product relies on purchased materials, which entails high costs, difficulties in transportation and service, as well as supply shortages; these factors affect the stable operation of the equipment. Therefore, it is necessary to develop high-quality alpha-olefins (1-octene, 1-hexene). Upon completion of this project, it will enable Wanhua to reduce its annual procurement costs for high-end α-olefins by a significant amount, alleviate external constraints on the operation of its production facilities, and ensure a stable supply of relevant raw materials. The site of this project is located in the Wanhua Industrial Park, where the surrounding social infrastructure is excellent and transportation is convenient. Additionally, the existing public and auxiliary facilities at the plant can be utilized, which helps to accelerate the project construction process and reduce construction costs. The project utilizes Wanhua’s own technology, which is advanced, results in low consumption, offers reliable performance, and comes with effective implementation measures.