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Zhongmei Mengda Wushen Zhao Complex (中煤蒙大乌审召煤制烯烃综合项目 / 内蒙古中煤蒙大新能源化工厂), also known as Inner Mongolia Zhongmei Mengda New Energy Chemical Plant, is an integrated coal-to-olefins facility that converts methanol (derived from coal-based syngas) into light olefins and subsequently polymerizes these olefins into polyethylene and polypropylene products. The facility represents a complete value chain from methanol feedstock through to finished polymer products suitable for plastics manufacturing. The facility was commissioned in April 2016, with production commencing in stages throughout 2016.

Plant Capacities and Process Units

Methanol Synthesis Unit: 

• Capacity: 1.8 million tonnes per year (as intermediate feedstock for downstream DMTO unit)​
• Technology/Licensor: Not specified in available sources​
• Feedstock: Syngas (synthesis gas containing H₂ and CO) supplied by China Coal Ordos Energy & Chemical Co., Ltd.'s BGL gasification units located at the adjacent Tuke Industrial Park

DMTO (Dimethyl Ether/Methanol-to-Olefins) Unit:

• Capacity: 600,000 tonnes per year of mixed olefins (ethylene + propylene)​
• Methanol Feed Rate: 225 tonnes per hour (pure basis), equivalent to 1.8 million tonnes per year​
• Technology/Licensor: DMTO proprietary technology jointly developed by Dalian Institute of Chemical Physics (Chinese Academy of Sciences), Emerging Energy Technology Co., Ltd., and several partners.
• Technology Significance: This was the 10^th commercial DMTO plant globally and represented a major milestone for indigenous Chinese coal-to-olefins technology.

Olefin Separation Unit:

• Capacity: 600,000 tonnes per year​
• Technology/Licensor: Lummus Technology
• Products: Polymer-grade ethylene and polymer-grade propylene are delivered to the respective polyethylene and polypropylene units. Mixed C₄ product is sent to the C₄ comprehensive utilization unit, and C₅⁺ products are also separated.​

C₄ Comprehensive Utilization Unit:

• Technology/Licensor: Kairui Environmental Protection Technology Co.,Ltd. (凯瑞环保科技股份有限公司) - domestic Chinese technology​
• Process Sections: Methanol-to-hydrogen unit, pressure swing adsorption (PSA) unit, Mixed C₄ hydrogenation unit, etherification unit, water washing unit, and butene-1 purification unit​
• Products: Butene-1 is supplied to the polyethylene unit as comonomer, and MTBE is produced as a fuel additive product.

Polyethylene Unit:

• Capacity: 300,000 tonnes per year​
• Primary Product Grade: LLDPE (linear low-density polyethylene)
• Technology/Licensor: Univation Technologies - UNIPOL PE gas-phase fluidized bed technology

Polypropylene Unit:

• Capacity: 300,000 tonnes per year​
• Primary Product Grade: Homopolymer PP (homo-PP) raffia, primarily grade L5E89​
• Technology/Licensor: W.R. Grace & Co. - UNIPOL PP gas-phase fluidized bed technology​

Strategic Integration

The Wushen Zhao facility operates in close coordination with China Coal Ordos Energy & Chemical Co., Ltd.'s Tuke Industrial Park facilities, which provide dedicated syngas supply from BGL gasification units. This organizational structure represents an integrated coal chemical cluster where gasification infrastructure is shared among sister companies under the China Coal Energy umbrella, optimizing capital efficiency and operational coordination.