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Successful Commissioning of the Air Separation Unit in CNPC Enechemical’s 1000,000-ton Methanol Upgrade Project Author/Source: Huahua Network – Coal Chemicals Date: November 12, 2020 Clicks: 9 On November 10, the air separation unit in CNPC Enechemical’s 1000,000-ton methanol upgrade project was successfully commissioned for the first time, producing qualified oxygen and nitrogen products. This marks the successful completion of the testing phase for this methanol project, representing significant progress in its commissioning process. It is reported that both the core equipment and main equipment of this system are of “Double First-Class” quality: the air compressor is a product of Siemens Industrial Turbines (Huludao) Co., Ltd., and it belongs to the international first-class category of equipment ； The cold box of the main equipment is supplied by a leading domestic equipment manufacturer, Hangzhou Hangyang Co., Ltd. The plant utilizes advanced, safe, reliable, and cost-effective air deep cryogenic separation technology as well as internal compression processes for liquid oxygen. The high-pressure oxygen, high-pressure nitrogen, and high-pressure air produced are primarily supplied to the gasification units; it is also capable of providing low-pressure nitrogen, instrument air, and plant air for the entire facility. The designed production capacity is 75,000 standard cubic meters of high-pressure oxygen per hour. To ensure the production of qualified products from the outset, since the official commencement of construction of the second-phase air separation unit on October 15, 2018, the project management team for the methanol plant and all personnel involved in the construction of the air separation unit have worked overtime and made meticulous plans. They adhered strictly to the predetermined schedule and testing milestones, taking advantage of the optimal construction period during the \"100-Day Campaign\" to carry out all tasks related to standardized testing. As a result, they were able to complete various preparatory tasks such as the final checks and confirmations, the startup of the turbine, joint testing of the entire unit, cooling of the cold box, and filling it with perlite sand, thereby creating favorable conditions for a successful first operation. At present, all equipment in the project plant is operating smoothly, and the various parameters of the oxygen and nitrogen products meet the design requirements. The second-phase construction project of China Coal Enerchemical Company, aimed at upgrading the production capacity to 1 million tons per year of methanol through syngas production, is located in the Tuk Industrial Park in Ordos, Inner Mongolia. This project utilizes Zemach BGL fixed-bed slag gasification technology, purification techniques (low-temperature methanol washing + deep cryogenic methane separation), as well as advanced methanol synthesis methods that feature low consumption and low energy usage, in order to build a facility capable of producing 1 million tons per year of MTO-grade methanol. The project commenced construction on September 21, 2018.