Bid invitation for alkali water electrolysis hydrogen production unit in the 800,000-ton coal-based olefins coal chemical project of Xinjiang Dongming Plastics Zhundong

Thread Content

Invest 19 billion yuan! Tender for 800,000-ton coal-to-olefins project in Zhundong, Xinjiang: On April 14, Xinjiang Dongming Plastics Co., Ltd. issued a tender for a hydrogen production unit based on alkaline water electrolysis as part of its coal chemical project aimed at producing 800,000 tons of coal-to-olefins per year. According to the tender announcement, the hydrogen production unit is required to generate 333.33 m3 of hydrogen per minute, which is equivalent to 20,000 Nm3 per hour. The deadline for submitting bids for this tender is April 19, 2025. On the morning of March 28, 2025, the Zhundong coal, electricity, and chemical integration project of Dongfang Hope Group officially commenced construction. This project integrates modern coal chemical processing with industries such as green electricity and green hydrogen. It primarily produces basic industrial raw materials such as ethylene and propylene, with 6 million tons of coal being converted annually. It mainly produces products such as ethylene, propylene, butylene, and liquefied petroleum gas. As important basic raw materials for industrial production, these products are primarily used in the petrochemical industry, plastic manufacturing, pharmaceuticals, and the energy sector. They can effectively stimulate the development of industries at both upstream and downstream levels, and serve as a model for promoting the clean and efficient use of coal. Dongfang Hope produces MTO-grade methanol using 800,000 tons of olefins as raw material, with coal as the feedstock; it employs Co-Mo sulfur-resistant shift and heat recovery technologies, as well as Linde low-temperature methanol washing and Lurgi low-pressure synthesis processes. MTO-grade methanol is converted into olefins using the DMTO unit at the Dalian Institute of Chemical Physics, and then products such as polymer-grade ethylene and propylene are separated out. Most of the ethylene and propylene are polymerized and extruded into pellets to produce polyethylene and polypropylene, while a smaller amount of ethylene and propylene, along with externally purchased dienes, are polymerized to produce ethylene-propylene-diene monomer rubber. Furthermore, a mixed C4 circulation pipeline is designed to send the mixed C4+ produced by olefin separation to the DMIO-Ⅱ unit for catalytic cracking to produce propylene, thereby increasing the olefin yield.