Unit 1 of the Jingyuan Coal and Electricity Clean and Efficient Gasification Gas Comprehensive Utilization (Relocation and Renovation) project, with a total investment of 5.4 billion yuan, has completed all processes
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With a total investment of 5.4 billion yuan, the first unit of a new coal chemical project in Gansu has completed all stages of its production process. According to Jingmei Group, following the production of qualified sodium chloride crystals on January 2, 2025, on January 12, the zero-emission unit of the gasification project successfully produced high-quality sodium sulfate crystals whose purity and whiteness met the requirements specified in standard T/CCT001-2019 for industrial sodium sulfate produced as a by-product of coal chemical processes, classified as Grade A, First Class. This marks the successful completion of the entire production process in this zero-emission unit. The total investment in the Jingyuan Coal and Electricity Clean and Efficient Gasification Gas Comprehensive Utilization (Relocation and Transformation) project is 5.425 billion yuan. It is located in the Yindong Industrial Park of the Baiyin High-Tech Industrial Park, covering an area of 839 mu. The Gansu Jingyuan Coal and Electricity Clean and Efficient Gasification Gas Comprehensive Utilization Project uses Jingyuan coal as raw material for pressurized gasification. The first phase of this project enables an annual production capacity of 300,000 tons of synthetic ammonia, 350,000 tons of urea, 20,000 m3/h of (H2+CO), 40,000 tons of methanol, 50,000 tons of liquid carbon dioxide, 60,000 tons of melamine, 50,000 tons of urea-ammonium solution, 1,924 tons of sulfur, and 2,500 tons of catalysts. The zero-emission unit of the gasification gas project is the first water treatment project in Gansu Province to adopt a salt separation process, and it was undertaken by Beijiet. Treating the concentrated brine discharged from the reclaimed water reuse unit through pre-treatment, membrane separation and concentration, and evaporation crystallization processes enables the maximum recovery of water resources, yielding high-quality sodium chloride and sodium sulfate crystalline salts. At the same time, the sodium chloride and sodium sulfate crystallization mother liquors are treated in the mixed salt treatment unit before being discharged to the miscellaneous salt treatment unit for drying, thereby achieving zero discharge.
Boiler No. 1 of the Clean and Efficient Gasification Gas Comprehensive Utilization (Relocation and Renovation) project was brought online on October 23, 2024, and began to produce qualified steam. The air separation unit started producing liquid oxygen and liquid nitrogen on October 27; to date, 1,897 tons of liquid oxygen and 1,063 tons of liquid nitrogen have been sold. On November 24, the gasifier was successfully ignited; on November 25, coal was successfully fed into it, producing qualified syngas as an intermediate product, and slagging on the water wall of the gasifier was completed. On November 26, Boiler No. 2 began its high-temperature drying process. The urea unit has completed its water-linked commissioning; the urea carbon dioxide compressor has been commissioned, and the commissioning of the packaging building, piers, as well as packaging and loading equipment has been completed. The purification and synthesis unit has entered the construction phases of airtightness, instrument wiring, and insulation. The project is constructed in two phases. The main components include: production facilities for the storage and transportation of raw and fuel coal, 2 sets of powder coal gasification units, air separation systems, shift reactors, low-temperature methanol washing units, sulfur recovery systems, ammonia compression units, carbon dioxide compression units (for use in gasification and urea production respectively), liquid nitrogen washing units, syngas compression units, ammonia synthesis units, and urea production units (one newly built and one relocated) ； A set of equipment for PSA gas production, melamine, urea ammonium nitrate solution, methanol (relocation and renovation), catalysts, etc ； The project is equipped with 3 circulating fluidized bed boilers with a capacity of 280 tons per hour (including desulfurization and denitrification functions), as well as various utility systems such as circulating water systems, water treatment systems, sewage treatment systems, reclaimed water reuse systems, and high-salinity water evaporation and crystallization salt separation systems. Detailed engineering design is currently in progress for each unit of the Phase 2 project; the long manufacturing cycle means that the key equipment has already been purchased, and the project has entered the design and manufacturing phase ； Equipment such as the air-cooling tower and molecular sieve of the air separation unit has arrived at the installation site. The construction of the sliding membrane for the raw coal silo in the gasification EPC project has been completed. Equipment such as the gasification furnace, syngas scrubber, and raw coal silo have been lifted into place, and work is currently underway on the process piping and steel structure installation. The foundation work for the air separation plant, the ammonia synthesis framework of the purification and synthesis unit, etc., has been completed, while the pile foundation work for the urea unit has been finished.