Piping purging completed for the energy-saving renovation of gas generation in Jinfeng Coal Chemical Plant’s air separation unit

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According to Shanxi Jinfeng Coal Chemical, at 16:43 on February 28, 2026, the No. 1 air compressor was started up for trial operation; at 18:30, the air purging process for the pre-cooling and molecular sieve systems was officially commenced. At 15:03 on March 1, Unit 1 air compressor stopped operating. All 21 pipelines in the empty section were inspected and verified; slag, rust, impurities, and other contaminants within the pipelines were completely removed, and the purging operation was successfully completed. According to information published on the National Public Resources Trading Platform (Shanxi Province), the air separation unit for the gas generation project aimed at improving energy efficiency and environmental protection, as well as the related renovation works carried out by Shanxi Jinfeng Coal Chemical Co., Ltd., was contracted out as an EPC project to a consortium consisting of Kaifeng Deer Air Separation Industry Co., Ltd. and China National Chemical Engineering Corporation 11th Construction Co., Ltd. In Shanxi Jinfeng Coal Chemical Gasification, efforts will be made to improve energy efficiency and environmental protection; 12 pure oxygen continuous gasification units (10 in operation and 2 as backups) will be installed to replace the existing 32 fixed-bed intermittent gasification units. A new air separation unit with a capacity of 30,000 m3/h will also be built, and the coal gas purification systems as well as the zero-discharge wastewater treatment system across the plant will be upgraded. After the project is implemented, the overall production capacity remains unchanged, at 360,000 tons of amino alcohol and 520,000 tons of urea per year.