【Ten Years of Great Progress in Chemical Technology】China Petrochemical’s First PDH Pilot Plant with Independent Intellectual Property Rights, 200–2023
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This post was last edited by Desert Fish on 2023-8-2 at 13:16. 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. Haichuan becomes even better with you here; we welcome everyone to participate more actively in discussions on this forum. The fragrance of rice in August ------------------------------------------- On July 24, 2023, Sinopec’s PDH pilot plant was completed at Beihai Refining & Chemical Complex. This project represents Sinopec’s first PDH pilot plant with independent intellectual property rights. It holds strategic and practical significance for breaking the foreign monopoly over PDH technology, enhancing Sinopec’s international competitiveness in this field, and advancing the “oil conversion” process at Beihai Refining & Chemical Complex. Since the construction of the PDH pilot plant began on April 26, 2023, all parties involved in the project at Beihai Refining & Chemical have strictly followed the company’s requirements for its construction, upholding a work style characterized by rigor, precision, and practicality. Through scientific organization and strict management, they have continuously improved the construction plans and optimized the scheduling of construction activities. They overcame difficulties such as long lead times for equipment and material procurement, as well as the impacts of high temperatures, heatwaves, and typhoons. By working together and staying committed to their duties, and by utilizing methods such as factory-prepared components and modular installation, they advanced the project progress steadily, focusing on key milestones. As a result, the project was completed one day ahead of schedule, laying a solid foundation for carrying out PDH pilot tests.
Project Name: Sinopec PDH Pilot Project. Project type: New construction. Construction unit: Sinopec Beihai Refining & Chemical Co., Ltd. Construction location: Within the reserved land of Sinopec Beihai Refining & Chemical Co., Ltd. in the Tieshangang (coastal) Industrial Zone, Beihai City, Guangxi Province. The geographical coordinates are: 109.516815° east longitude and 21.501698° north latitude. Construction scale and content: Construct a pilot-scale propane dehydrogenation plant with an annual capacity of 1,000 tons. The main construction components are the propylene production unit via propane dehydrogenation, which includes propane evaporation, dehydrogenation reaction, catalyst regeneration, and product gas compression. Other facilities such as the project control room, analysis and testing laboratories, and offices rely on the existing infrastructure of the entire plant. Land area: It covers approximately 500 m2. Project investment: The total investment for this project is 48 million yuan, of which 3.1 million yuan is allocated to environmental protection measures. Project implementation plan and workforce allocation: The planned start date is June 2022, and the planned completion date is December 2022. A total of 16 personnel are assigned for the operation of the facility, with an additional 16 personnel added. Annual operating hours of the device: 8,000 hours. Operational flexibility: 60%~110%. Operation shift schedule: Continuous production facilities operate on a \"four shifts, two rotations\" system.
This project is a pilot-scale project for propane dehydrogenation catalysts. The primary raw material, propane, comes from the gas fractionation unit; after being dehydrogenated using the PDH unit in this project, it yields crude propylene gas, which is then sent to the desulfurization unit for liquefied gas purification. After desulfurization, the resulting gas is returned to the gas fractionation unit. Under normal operating conditions, the propane flow rate from the gas fractionation unit is 12 t/h; of this, approximately 2.8% of the propane (0.331 t/h) is sent to the PDH unit of this project, while the remaining approximately 97.2% of the propane (11.669 t/h) is sent to the tank farm via the existing pipelines. In this project, the proportions of propane inlet flow and crude propylene outlet flow are low, so the pilot test has little impact on the fluctuations in materials throughout the plant. The main flow of materials for the project and the associated equipment across the plant are shown in the figure below.
The monopoly has been broken, and prices for PDH process packages are expected to drop soon.
【Ten Years of Great Progress in Chemical Technology】China’s first PDH plant using independent ADHO technology was put into operation from 198 to 2023. https://bbs.hcbbs.com/thread-4528173-1-1.html (Source: Haichuan Chemical Industry Forum)