In the vast Gobi Desert Park of Hami, machines roar incessantly. Relying on the abundant oil and coal resources in the area, two large-scale coal chemical projects have successively ushered in important development nodes. We will strive to achieve stable production and move towards closed-loop operation, and smoothly ignite and test drive into the trial production cycle. Different technological routes are advancing simultaneously, squeezing out local coal resources and promoting the regional coal chemical industry to a new level.

Accelerate the landing of industries

The Xinjiang Xuandong Energy Comprehensive and Efficient Recycling Industry Project, located in the Naomaohu Coal Chemical Circular Economy Industrial Park of Yiwu Industrial Park, has a total investment of 15 billion yuan and has entered a stable production stage. The project includes the annual classification, quality, clean and efficient utilization of 10 million tons of coal, the upgrading and transformation of 500000 tons of hazardous waste coal tar, and the supporting 100000 cubic meters of coal gasification hydrogen production per hour. Trial production will be carried out in 2024, and closed-loop operation is planned to be achieved in 2026.

The project adopts SE coal water slurry gasification technology for coal to hydrogen production, which solves the problem of nozzle erosion in the industry. The nozzle service life can reach more than one year, and the carbon conversion rate is greater than 99%. The enterprise's independent research and development of coal tar full fraction hydrogenation technology has reached the international leading level, holding 58 authorized patents including 10 invention patents, winning the first prize of the Autonomous Region Science and Technology Progress Award, and the quality of hydrogen produced can meet the requirements of hydrogenation production.

Diversified technological paths

In the Santanghu Industrial Park of Barkun County, the Xinjiang Jiaguo Weiye New Energy 6 million ton low-grade coal grading and quality utilization and 600000 ton coal tar hydrogenation project have entered the trial production stage. As a key construction project in the 14th Five Year Plan of the autonomous region, with a total investment of 6.58 billion yuan, it started construction in July 2024 and completed ignition and testing in July this year.

The project utilizes cascade pyrolysis and co production technology to process low rank coal, producing blue charcoal coal tar and raw gas. Coal tar hydrogenation produces diesel naphtha, while raw gas extracts LNG and hydrogen. The by-product coal tar pitch can be used as a raw material for lithium battery negative electrode materials. After completion, the annual production capacity will be 1.8 million tons of upgraded coal, 200000 tons of gasoline, 300000 tons of diesel, 80000 tons of LNG, and 30000 tons of coal tar pitch. Keywords: Xinjiang Coal Chemical Industry, Coal Quality Utilization

Two major projects are rooted in the rich oil and coal resources of Hami. Xuandong Energy focuses on refined products of full fraction hydrogenation, while Jiaguo Weiye is deeply involved in the cascade pyrolysis multi generation model. The project will continue to reach production capacity, effectively enhancing the local coal chemical technology and equipment strength, and extending and improving the industrial chain.Editor/Min Jing