New progress on the 75,000 Nm3/h air separation project of China Coal Hubei Energy Chemicals

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New Progress on the 75,000 Nm3/h Air Separation Project for China Coal Energetic Chemicals / Author/Source: Gas Separation / Date: 2020-09-02 / Clicks: 54 At 2 p.m. on August 24, the single test of the turbine for the 75,000 Nm3/h air separation unit built by China Air Separation Engineering Co., Ltd. was a complete success. After inspection by the owner, supervisor, commissioning personnel, and other relevant experts, all parameters such as turbine shaft vibration, bearing vibration, and bearing temperature meet the requirements of the technical specifications. The single test of the steam turbine is an important part of the overall commissioning process of the unit, and it represents a milestone in the entire project. The success of this single test indicates that the project has overcome the impact of the pandemic and reached a crucial stage in testing; this lays a solid foundation for the successful testing of the entire facility in the future, as well as for the commissioning of China Coal Energetic Chemicals’ 1 million tons per year methanol production facility. Since June, the 75,000 Nm3/h air separation project team at China National Coal Group Enerchemical in China’s air separation sector has launched a \"100-Day Challenge\" campaign. Party members from this project team have taken the lead in overcoming difficulties, planning ahead and making thorough arrangements. Technical personnel have worked day and night at the construction site, ensuring that each project milestone is met on schedule and doing their best to keep the project on track despite various challenges on site; as a result, a number of tasks have been completed so far. Before the commissioning phase, the project team, in conjunction with the owner, developed a detailed commissioning plan and safety measures, and coordinated the resolution of various issues promptly. It completed numerous important tasks such as purging, oil washing, and installation, thereby ensuring the smooth progress of the turbine’s individual testing procedures. China Air Separation stated that in the next step, on this Mu Us Desert area, the project team will continue to overcome difficulties in order to advance the project to a new phase of testing, carrying out tests on the subsequent equipment in an orderly manner, so as to lay a solid foundation for achieving the ultimate goal of completing the testing process. Key milestone of the 75,000 Nm3/h air separation unit: The first pile was driven for the cryogenic tank in the air separation project on October 14, 2018 ； On March 18, 2019, the excavation of the cold storage foundation officially began ； The foundation pouring for the cold storage was completed on May 22, 2019 ； Construction of the cryogenic tank for the air separation unit commenced on August 7, 2019 ； On September 1, 2019, the hoisting and installation of the lower column in the distillation unit were completed ； On September 11, 2019, the lower section of the distillation column was hoisted and installed ； On September 21, 2019, the upper section of the distillation column was successfully hoisted and installed ； The rough argon column was hoisted and installed on September 22, 2019 ； On September 25, 2019, the topping-out work for the 75,000 Nm3/h air separation cryogenic tank was completed successfully ； On December 13, 2019, the booster was lifted into place; on the 14th, the air compressor was lifted into place; and on the 18th, the steam turbine was lifted into place. It is reported that the EPC general contractor for the 75,000 Nm3/h air separation unit in the technical renovation project of China Coal Hubei Energy Chemicals’ syngas-based methanol production facility with an annual output of 1 million tons is China Air Separation Engineering Co., Ltd ； The supplier of the equipment is Hangyang Oxygen Co., Ltd., which employs its advanced air deep cryogenic separation technology and the process of internal compression of liquid oxygen for air expansion. The entire air separation unit includes self-cleaning filters, compressor units, pre-cooling systems, purification systems, pressure expansion systems, cryogenic tank systems, instrumentation and control systems, as well as backup systems ； The air compressors, steam turbines, and pressure boosting units supplied for this plant were manufactured by Siemens.