The four key frameworks of the MTO unit in Inner Mongolia Rongxin’s methanol-to-olefins project were successfully capped

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On October 26, the four key frameworks of the MTO unit in the Inner Mongolia Rongxin Methanol-to-Olefins project, whose construction was carried out by the Second Engineering Company of Sinopec Fourth Construction Group, were successfully capped. It is reported that the company was responsible for constructing four key structural components as part of the Inner Mongolia Rongxin Methanol-to-Olefins project: the reactors and regenerators’ frameworks, the catalyst tank framework, and the reactor’s three-spinning frameworks. The workers involved overcame various difficulties during the construction process, ensuring strict control over all aspects of the work and maintaining high standards regarding safety and quality. By employing scientific construction methods, they managed to improve the quality of the construction and accelerate the progress, ultimately completing the construction of these four key frameworks. This marks the successful completion of a major milestone in the civil engineering phase of this project, laying a solid foundation for the subsequent installation of steel structures, large-scale equipment, and process pipelines, and facilitating the project to move into a new stage of development. The annual 800,000-ton olefin production project of Inner Mongolia Rongxin Chemical Co., Ltd. involves a total investment of 9.83 billion yuan and covers an area of 1,887 mu. It mainly includes the construction of an 800,000-ton/year methanol-to-olefins plant, a 400,000-ton/year polyethylene plant, a 400,000-ton/year polypropylene plant, a 15,000-ton/year 1-butene plant, as well as various supporting facilities. Using methanol as the raw material, the project employs the industry-leading DMTO third-generation technology developed by the Dalian Institute of Chemical Physics, Chinese Academy of Sciences, which significantly improves the conversion rate of the raw material. It reduces the methanol consumption per ton of olefins to 2.66 tons per ton, thereby greatly lowering the production cost per unit of product and enhancing market competitiveness. At the same time, the use of the slurry process for the production of high-density polyethylene, along with the new generation of loop reactor technology for polypropylene production, has laid a solid foundation for development in the directions of higher quality, greater diversity, and lower carbon emissions.