【Ten Years of Rapid Development in Chemical Equipment】World’s largest MTO reactor with a diameter of 15 meters and a length of 45 meters delivered, 2021–2025

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Give praise and encouragement to the achievements made in China’s chemical engineering technology and equipment; your participation in discussions is the greatest encouragement. **********************【Ten Years of Great Development in Chemical Engineering Equipment】Ongoing updates and summaries available; feel free to join the discussions: https://bbs.hcbbs.com/thread-3576046-1-1.html ***************** March 2, 2025. The world’s largest MTO (methanol-to-low-carbon olefins) reactor, manufactured by Zhanghuaji (Suzhou) Heavy Equipment Co., Ltd., was successfully loaded onto a cargo ship at the Jinlong Heavy Goods Terminal. It is expected to arrive in Qinzhou, Guangxi in 8 days, and be used in the methanol-to-olefins and downstream processing integration project of Guangxi Hua Yi Energy Chemical Co., Ltd., to contribute to the development and opening up of the Beibu Gulf Economic Zone. It is worth noting that over 90% of the raw materials and components used to manufacture this MTO reactor come from local manufacturers in Zhangjiagang. It is reported that the MTO (methanol-to-low-carbon olefins) process boasts significant green and low-carbon advantages; thanks to its wide range of available raw materials, low energy consumption, high product selectivity, and strong market adaptability, it is increasingly being adopted by large chemical companies. The MTO reactor is the key equipment in coal chemical industry for converting methanol synthesized from gasification into low-carbon olefins such as ethylene and propylene; its design and operation directly affect the performance and efficiency of the entire process. The reactor delivered this time is used in a 1 million tons per year methanol-to-olefins plant, and the entire reactor is made of austenitic stainless steel. The reactor has a maximum external diameter of 15 meters, an overall length of 45 meters, and a maximum transport weight of over 800 tons. Previously, the largest MTO reactor of similar technology had a maximum diameter of 8 meters, with an overall length of only around 34 meters. In addition to its large size, this MTO reactor has also overcome multiple industry \"bottlenecks\". Previously, the industry primarily used a \"modular\" approach to manufacture such reactors: the manufacturers produced each component according to the design drawings, then transported these components in separate parts to the site where the project was being built, with assembly being carried out manually. And such a process usually takes 11 to 13 months. This time, the ‘horizontal assembly process’ was adopted; everything from the production of components to the final overall assembly of the reactor was carried out within our factory. To this end, the manufacturing unit continuously pursued innovations in manufacturing processes, overcame technical challenges, and maintained close communication with the design institute. Structural designs were optimized, and multiple technical discussions were held during the production phase to ensure that constructors understood and adhered to the technical requirements and manufacturing standards. Finally, quality control personnel focused on identifying the key aspects related to quality, and the products were successfully delivered within 7 months.