From Xining Economic and technological development zone, Qinghai Big Mei Coal Industry Co., Ltd.. industrial Park Tail Gas Comprehensive utilization of Olefin project has been formally started construction recently.
The total investment of 12.7 billion yuan, the construction scale of 1.8 million tons/year of methanol olefins, 300,000 tons/year polyethylene, 400,000 tons/year of polypropylene and ancillary utilities, ancillary works and the necessary works outside the engineering.
The project uses the. Industrial Park smelting enterprise to discharge the exhaust gas, carries on the comprehensive recovery as the raw material production methanol, after the methanol alkene installment, the olefin separation installment obtains the polymerization grade ethylene, the polymerization grade propylene, finally produces the high-density Polyethylene granule resin and the many kinds of polypropylene resin product, has formed the circular economy demonstration The main equipment of the project is to choose the most advanced technology at home and abroad, and the core equipments are imported equipment and high automatization. The project is designed with a mature and reliable sewage treatment device and a "double membrane method" reclaimed water reuse device, the full recovery of recycling water resources, so that the whole project has no drainage wastewater.