【Ten Years of Great Progress in Chemical Technology】063 – The first domestic experimental plant for producing olefins through crude oil cracking was successfully commissioned in 2021

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This post was last edited by Desert Fish on 2023-6-4 at 21:15. Ten years of rapid development in chemical technology – praise for China’s prosperity and strength! This is just a starting point; more participation from everyone will make things even more lively. The forum becomes better with your involvement; we welcome everyone to engage more in discussions here. Everyone should pay attention to safety and know how to handle emergencies. ********************************************* On August 24, 2021, the experimental project for producing olefins through crude oil cracking at Tianjin Petrochemical was successfully launched, marking a crucial step toward industrialization of this technology in China, as part of the effort to reduce oil consumption and increase chemical production. It is understood that the crude oil steam cracking technology for producing olefins at Tianjin Petrochemical was jointly developed by Sinopec Beihua Research Institute, the project construction company, and Nanjing Tianhua Chemical Engineering Co., Ltd. The project commenced on April 20 this year, and successful operation was achieved on August 24 on the first attempt. In this experimental project, the 6# cracking furnace of the ethylene unit in Tianjin Petrochemical’s olefins department is reused; the heat exchange tube bundles in the convection section remain unchanged. The dilution steam is injected twice instead of once. The material exiting the mixing superheater in the convection section is mixed with the secondary steam before entering a newly added flash tank for gas-liquid separation. The light components in the gas phase return to the convection section to be superheated and then sent to the radiation section for cracking, while the heavier components are sent to a buffer tank, where heat is recovered through heat exchangers before being sent to Tianjin Petrochemical’s refining department.