The hydrogen sulfide concentration tower, a key piece of equipment in the low-temperature methanol washing unit of the Baotou Guoneng coal-to-olefins upgrading demonstration project, was successfully hoisted into place

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On April 26, the 4,000-ton crawler crane for the Baotou Guoneng project operated by Sinopec Shipping Company was used for the first lift operation – the hydrogen sulfide concentration tower, a key equipment component of the low-temperature methanol washing unit, was successfully lifted into place. At 10:17 on the morning of the lifting operation, a 4,000-ton crawler crane and a 400-ton auxiliary crane worked together to lift the structure smoothly. After 3.5 hours of precise work, the hydrogen sulfide concentration tower was lowered to the ground accurately and placed in position, marking a key breakthrough in the lifting of large-scale components for this project and signaling the official start of the equipment installation phase. It is reported that, as the core equipment of the project, the lifting operation of the hydrogen sulfide concentration tower is difficult, requires high technical skills, and involves significant safety risks. Since the components for the 4,000-ton crane arrived, the project has faced significant challenges in terms of preparation for lifting operations and on-site work, due to factors such as limited site space, numerous concurrent tasks, as well as variable weather conditions and frequent sandstorms. In the face of numerous difficulties, the team united as one to tackle these challenges head-on. With high morale and a pragmatic approach, they made every effort to accelerate progress and meet deadlines, carrying out all the preparatory tasks related to lifting in order to lay a solid foundation for the smooth execution of the lifting operations. The Baotou Guoneng Coal-to-Olefins Upgrade Demonstration Project is an upgraded demonstration project built on the basis of the world’s first coal-to-olefins demonstration facility. With a total investment of 17.15 billion yuan, its energy conversion efficiency stands at 46.6%, placing it at the leading level in the coal-to-olefins industry. Building on the first-phase factory, the project undergoes innovative upgrades and makes systematic use of domestic technological innovations; it achieves full localization of technologies across the entire process in the coal-to-olefins industry for the first time. This demonstrates the technological innovation achievements of the **Energy Group in the field of coal chemistry over the past few years, enhances the degree of autonomy and control within the industrial chain as well as the level of domestic production of equipment, and continues to drive the development of the modern coal chemistry industry in terms of higher quality, greater diversity, and lower carbon emissions. In addition to the hydrogen sulfide concentration tower, which was lifted for the first time this time, the lifting company will also undertake the lifting tasks for several other key large-scale equipment in this project, including nitrogen stripping towers and unshifted gas washing towers.