Yangzi Petrochemical initiates the localization upgrade of its ethylene refrigeration units
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Yangzi Petrochemical Initiates Localization Upgrade of Ethylene Refrigeration Units 2024/5/10 The removal of two refrigeration units from the ethylene cryogenic storage system at Yangzi Petrochemical’s Storage and Transportation Plant marks the start of the project to localize and upgrade these cryogenic ethylene refrigeration units. The ethylene low-temperature storage unit stores the ethylene material produced by the company or purchased from external sources in low-temperature storage tanks with an operating temperature of minus 104 degrees Celsius, and supplies it to the relevant production units as needed, thereby helping to balance the supply of ethylene material. After long-term operation, the two imported refrigeration units in Yangzi Petrochemical’s ethylene low-temperature storage facility have seen a decline in operational efficiency, and experts have determined that they are not worth repairing. To revitalize the facility, Yangzi Petrochemical upgraded two old refrigeration units with domestically produced components. This project has 14 key milestones, including the demolition of old units, construction of foundations at the original site, installation of new units, and installation and commissioning of the associated electrical and instrumentation systems. Yangzi Petrochemical optimized its processes, strengthened management and construction teams, established a reverse schedule for the construction tasks, and refined work schedules. From the start of the project, it implemented strict 5S (Seiri, Seiton, Seiso, Seiketsu, Shitsuke) management practices on site to ensure safe and orderly construction. To ensure the stable operation of the production units during construction, the storage and transportation plant has introduced special protection measures for low-temperature units. In close collaboration with the olefin plant and Yangba Company, it adopts an operation mode that involves direct transfer of ethylene, as well as simultaneous receipt and transfer of the material, in order to meet the ethylene needs of the production units. Upon completion of the localization upgrade of these refrigeration units, potential hazards associated with the equipment will be effectively eliminated, operational efficiency will increase, energy consumption of the facility will be reduced, and the capacity to handle ethylene materials will be enhanced. (
A 35,000-cubic-meter cryogenic tank is used for adjusting the raw materials in the ethylene plant; when the price of propylene in the international market is low, some propylene is imported, and when the price is high, some of it is exported.
Production must not be halted; this project involves 14 key milestones, including the demolition of old units, construction of foundations at the original site, installation of new units, and the installation and commissioning of the associated electrical and instrumentation systems.
Storage and transportation facilities – if they stop working, then they stop. Isn’t this in line with the approach of working closely with olefin plants and Yamba Company to adopt an operation mode where ethylene is transported directly, with receiving and transportation taking place simultaneously? Yamba Company also has 5 3500-liter propylene storage tanks available for storage and transportation. In chemical industrial parks, the advantage of having chemical plants clustered together is that the utility facilities can cooperate with each other and share resources.
The guy is probably from the relevant company and knows a lot about it in detail.