Overall design of Xinjiang Shanneng Chemical Industry’s Zhundong Wucaiwan 800,000 tons/year coal-to-olefins project

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Recently, Xinjiang Shanneng Chemical Co., Ltd. won the bid for the overall design of the 800,000 tons/year coal-to-olefins project in Zhundong Wucaiwan. Xinjiang Shanneng Chemical Co., Ltd.’s Zhundong Wucaiwan 800,000 tons/year coal-to-olefins project has an investment of 19.8 billion yuan. The construction site is located on the west side of Shenqi Road at the entrance of the Wucaiwan No. 4 open-pit mine pit in Huoshaoshan Industrial Park, Wucaiwan Mining Area, Zhundong Economic and Technological Development Zone, Xinjiang. The project uses Wucaiwan No. 4 open-pit mine coal as raw material, and produces MTO-grade methanol (intermediate product) through pressurized gasification of pulverized coal, conversion and heat recovery, low-temperature methanol washing, and methanol synthesis. ； MTO grade methanol is then separated from MTO and olefins to obtain polymerization grade ethylene and polymerization grade propylene monomers ； Polymerization of ethylene to produce polyethylene products ； Polymerization of propylene produces polypropylene products. The main process equipment of the project includes air separation unit, gasification unit, purification unit, methanol unit, sulfur recovery unit, MTO unit (containing four carbon recycles), olefin separation unit, polyethylene unit, polypropylene unit, etc. Project utilities include: Power station, plant-wide water supply and drainage engineering (including fire-fighting water system), sewage treatment, reclaimed water reuse, concentration, evaporation and crystallization, plant-wide power supply and distribution, plant-wide telecommunications, plant-wide external pipes, intermediate product tank area and liquid material vehicle loading and unloading station, olefin tank area, flare system, underground pipe network, air compressor station, heat exchange station, storage and transportation system, off-site engineering, etc. The project supporting Wucaiwan No. 4 open-pit mine is integrated and constructed simultaneously with the project. The project design comprehensively considers the power supply, water supply, heating, production and domestic sewage reception and treatment of the No. 4 open-pit mine, and considers the sharing of office buildings, dormitories, canteens and other living facilities to achieve investment optimization.