【Ten Years of Rapid Development in Chemical Equipment】1483–2024: SHENGU produces the world’s largest 1 million-ton propane dehydrogenation project gas compressor

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This post was last edited by Desert Fish on 2024-3-4 at 11:40. Happy New Year 2024 **********************【Ten Years of Rapid Development in Chemical Processing Equipment】A continuously updated summary thread – feel free to join the discussions: https://bbs.hcbbs.com/thread-3576046-1-1.html (Source: Haichuan Chemical Industry Forum) ***************** Recently, Fujian Zhongjing Petrochemical’s second-phase project, which features the world’s largest propane dehydrogenation unit capable of producing 1 million tons of propylene per year, has successfully completed its construction phase. Shenmu Group provided core mechanical equipment solutions for the entire process flow of this project, and the mechanical trial run was successful on the first attempt! With a total investment of 4 billion yuan, this project can generate an annual output value of 10 billion yuan, and it will also drive an output value of 20 billion yuan for the downstream industrial chain. It is currently the largest propane dehydrogenation to propylene production facility in the world. The project adopts the state-of-the-art propane dehydrogenation technology for propylene production from the American company Rumus, providing high-purity propylene raw materials for downstream polypropylene manufacturers. Once operational, it will generate 50,000 tons of hydrogen as a by-product per year. The PDH unit in the Lummus process mainly consists of a product gas compressor, heat pump units, and propylene and ethylene compressors, among which the product gas compressor is the most challenging to design. Previously, the product gas compressors used in domestic PDH units generally relied on imported equipment, resulting in long manufacturing cycles, high capital investment, and high maintenance costs later on. Shenmu has broken free from its reliance on foreign technologies by providing customers with core equipment solutions for the entire production process, thereby delivering long-term economic benefits. Users gave high praise to SHENGU’s solution. The project manager of Zhongjing Petrochemical said, “SHENGU Group truly is a key enterprise for the country; the compressors it produces exhibit excellent operational performance, and it is a trustworthy company.” The after-sales service engineers are diligent and responsible, fulfilling the promise to always satisfy customers. I hope SHENGU Group can produce better equipment! ” Customers’ approval is the best proof of SHENGU’s value of \"delivering value to clients,\" and it serves as the greatest motivation for us to continue providing them with better solutions and high-quality services. The 1 million-ton propane dehydrogenation project represents a significant breakthrough by SHENGU Group in the localization of compression units based on the Lummus process for propane dehydrogenation; the gas compression units produced by SHENGU are the most critical equipment in the entire project facility. Due to its high flow rate and operation at negative pressure at the inlet, the product gas compressor results in the largest overall size and weight, making its design extremely challenging. The efficiency metrics of compressors have a significant impact on the energy consumption level of the system. Therefore, in its pneumatic design, SHENGU uses high-efficiency three-element impellers to improve the variable efficiency of the impellers ； In terms of structural design, CFD analysis was employed to optimize the intake and exhaust chambers, thereby reducing losses in the volute and further improving the polytropic efficiency; the overall efficiency of the machine has reached international advanced levels. The special operating conditions posed challenges to the startup of the unit. During the design phase, SHENGU customized and updated the pressure-starting curve for the unit in light of these special conditions, thereby completely resolving the issue of pressure-starting for units designed for PDH under such special operating conditions. The gas compressor unit provided by SHENGU for this project is nearly 30 meters in length, which is equivalent to the height of two and a half floors; it is the largest compression unit used in the localization of the Lummus process, and its weight is equivalent to that of 250 passenger cars. In the future, SHENGU Group will continue to fulfill its role as a leader in core rotating equipment for the energy and chemical industry in China. Adhering to the core values of \"delivering value to customers, focusing on quality, pursuing continuous innovation, and striving for excellence,\" it will stay aligned with the trends of industry development and the needs of its clients. By doing so, it will live up to the long-term support and trust of the industry and its customers, and contribute to the high-quality development of the energy and chemical sector!