Four major coal-to-olefins projects in Xinjiang with a total investment of 100 billion yuan

01. Xinjiang Shanneng Chemical Co., Ltd.’s 800,000 tons per year coal-to-olefins project is located on the west side of Shenqi Road, at the entrance of Open-Pit Mine No. 4 in the Huawaiwan Industrial Park, Huawaiwan Mining Area, Jundong Economic and Technological Development Zone in Xinjiang. The total investment for this project is 19.8 billion yuan, with a total land area of 326 hectares. Construction scale: Using coal from the No. 4 open-pit mine in Wucai Bay as raw material, MTO-grade methanol (an intermediate product) is produced through coal gasification under pressure, shift reaction and heat recovery, low-temperature methanol washing, and methanol synthesis ； MTO-grade methanol is then processed through MTO and olefin separation to obtain polymer-grade ethylene and polymer-grade propylene monomers ； Polyethylene production through ethylene polymerization ； Propylene is polymerized to produce polypropylene products. Main process units: air separation unit, gasification unit, purification unit, methanol unit, sulfur recovery unit, MTO unit (including butane recycle), olefin separation unit, polyethylene unit, polypropylene unit, etc.

02. Xinjiang Dongming Plastic Co., Ltd.’s 800,000 tons per year coal-based olefins project is located in the Modern Coal Chemical Industry Demonstration Zone of the Zhundong Economic and Technological Development Zone in Xinjiang. The total investment for this project is 19 billion yuan; construction is scheduled to begin in August 2022, with completion expected by August 2024. Construction scale: The project uses coal as a raw material to produce methanol, which is then processed through an MTO unit and olefin separation processes to yield polymeric-grade ethylene and propylene. Part of these polymeric-grade ethylene and propylene is used in PP and PE polymerization processes to produce polyolefin products, while another part is fed into the EPDM production unit to manufacture EPDM rubber. The facility is equipped with capacity for 220×104 tons per year of methanol production, 80×104 tons per year of methanol-to-olefins production, 40,000 tons per year of polypropylene production, and 40,000 tons per year of polyethylene production. By-products include sulfur, liquefied petroleum gas, heavy C4+, and other products. Main process units: These mainly include gasification units, shift units, low-temperature methanol washing units, sulfur recovery units, methanol synthesis units, methanol-to-olefins units, olefin separation units, polyethylene and polypropylene production units, ethylene-propylene-diene monomer production units, and water electrolysis units.

03. Yiwu Jiangna New Energy Co., Ltd.’s 700,000 tons per year coal-to-olefins project: The project covers an area of 363.18 hectares, with a total investment of around 42.95 billion yuan (excluding investments in new energy technologies); it is located in the Baishihu Coal High-Efficiency Comprehensive Utilization Industrial Park in Yiwu County. Construction scale: 700,000 tons per year coal-to-olefins plant, 350,000 tons per year polypropylene plant, 300,000 tons per year acetic acid synthesis plant, 100,000 tons per year acetic anhydride plant, 120,000 tons per year vinyl acetate plant, 200,000/100,000 tons per year LDPE/EVA plants, 700,000 tons per year formaldehyde plant, 110,000 tons per year phenolic resin plant. Main process units: Coal is used as raw material to produce 700,000 tons per year of olefins, with LDPE/EVA and polypropylene plants built as downstream facilities for these olefins. A portion of the syngas is used in carbonylation to produce acetic acid, which is then converted into acetic anhydride through pyrolysis ； A portion of the acetic acid is used in vinyl acetate production facilities to manufacture vinyl acetate as a raw material for EVA production. Part of the syngas is used to produce dimethyl ether, which is then converted into methyl acetate through carbonylation, and ethanol is produced via hydrogenation ； And simultaneously produce formaldehyde, which serves as a raw material for phenol-formaldehyde resins and BDO.

04. Xinjiang Zhongtai New Materials Co., Ltd.’s 700,000 tons per year coal-to-olefins project is located in the Tongxin Industrial Park in Alehui Town, Toksun County, Turpan City, with a total investment of 22.7 billion yuan. Construction scale: New production facilities will be built for 2.1 million tons per year of methanol, 1.8 million tons per year of methanol-to-olefins, 400,000 tons per year of high-density polyethylene, and 300,000 tons per year of polypropylene, along with supporting systems for storage and transportation, utility services, and auxiliary production facilities. Main process units: Coal-to-olefins products are produced using technologies such as semi-waste boiler water wall water-cooled slurry gasification, syngas purification, methanol synthesis, and DMTO-III methanol-to-olefins conversion.