Wuhan Donghai's large-scale coiled-tube heat exchanger helps extend the successful operation of Sinopec's 600,000-ton/year PDH unit.

The core equipment of the 600,000-ton-per-year propane dehydrogenation unit at Yanlong Zhongran—three reactor feed-and-discharge heat exchangers—relies on our company’s newly developed, large-scale, highly efficient coiled-tube heat exchangers. Despite challenging factors such as recurring COVID-19 outbreaks and rising material costs, meticulous planning and focused technical攻关 efforts successfully overcame significant hurdles, including the nearly 4-meter diameter and nearly 200-ton weight of individual units, as well as the complex stability requirements of the massive tube bundle structure and stringent demands for material mechanical performance. As a result, the equipment was delivered ahead of schedule, providing critical support to ensure the smooth startup and operation of the entire plant.

The core equipment of the 600,000-ton-per-year propane dehydrogenation unit at Yanlong Zhongran—three reactor feed-and-discharge heat exchangers—utilizes our company’s newly developed large-scale, highly efficient coiled-tube heat exchangers. Despite challenging factors such as recurring COVID-19 outbreaks and rising material costs, meticulous planning and focused technical攻关 efforts successfully overcame significant hurdles, including the nearly 4-meter diameter and nearly 200-ton weight of individual units, as well as the complex stability requirements of the massive tube bundle structure and stringent demands for material mechanical performance. As a result, the equipment was delivered ahead of schedule, providing critical support to ensure the smooth startup and operation of the entire plant.

In recent years, Wuhan Donghai has closely aligned itself with the nation’s strategy for high-quality development and the "Dual Carbon" goals, consistently prioritizing independent innovation. The company has focused on pioneering breakthroughs in critical equipment for key sectors such as fine chemicals, clean energy, and new materials. Additionally, Wuhan Donghai has been deeply engaged in exploring energy-saving and emission-reduction solutions for high-energy-consuming industries like traditional refining and coal chemical processing, developing innovative alternatives specifically tailored for large-scale heat exchangers and reactors. Beyond supplying equipment for the recently successful startup of the Yanchang Zhongran project, our company has also provided similar products for PDH units at customers such as Jiangsu Ruiheng and Lihua Yi Weiyuan. Currently, Wuhan Donghai is steadily producing two coiled-tube heat exchangers for Zhejiang Yuanjin, actively contributing fresh momentum to support PDH project clients!