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Progress in the Construction of the LNG-Ammonia Synthesis Unit for Shanxi Tongzhou Rammed Coke Oven Project / Author/Source: Sinochem Second Construction Company / Date: May 11, 2022 / Clicks: 5. On May 8, the roof of the 30,000 m3 low-pressure wet spiral gas holder for the LNG-ammonia synthesis unit of Shanxi Tongzhou’s 2.15 million tons/year rammed coke oven project was successfully installed, marking the completion of all construction work on the main structure of this gas holder and laying the foundation for subsequent installation tasks inside and outside the holder. This gas holder has a cylindrical structure, covers an area of 1,392 square meters, has a total height of 35.521 meters and a lifting height of 25.68 meters, with a total weight of 678.55 tons. Air lifting technology is used for this ceiling lift. To address a series of challenges in this project, such as the lifting points for raising the cabinet top, the working space requirements, and the precision needs for installation, the on-site management staff and technical personnel organized everything carefully and managed things scientifically. They also carried out thorough technical and safety briefings, which ensured the successful elevation of the cabinet top structure and earned high praise from both the client and the supervisor. In subsequent tasks, the project team will redouble its efforts to complete high-quality work on the installation of the internal sealing structures and auxiliary facilities, as well as on external painting for corrosion protection, in order to enable the project to go into operation as soon as possible. The Shanxi Tongzhou 2.15 million tons per year coke oven project, featuring coke ovens with a chamber height of 6.25 meters, along with the accompanying LNG and ammonia synthesis projects, has a total investment of 3.65 billion yuan. The project is carried out in two phases: in the first phase, 2x56-chamber coke ovens with a height of 6.25 meters and an annual production capacity of 1.15 million tons will be built; in the second phase, 2x50-chamber coke ovens with a height of 6.25 meters and an annual production capacity of 1 million tons will be constructed. At the same time, a dry quenching system will be installed, along with coal preparation systems, dry quenching systems, chemical product recovery units, environmental protection facilities, and auxiliary facilities. Additionally, 2×2.4 million tons per hour dry quenching waste heat recovery units and 15 MW each will be built, as well as a project for producing LNG from coke oven gas at an annual rate of 1 million tons, along with 100,000 tons per year of ammonia. The project is located to the west of Mianshang Village, Guodao Town, Qinyuan County. It was designed by MCC Coking & Refractory (Dalian) Engineering Technology Co., Ltd. Upon completion, it will produce 2.15 million tons of coke per year, 142,532 tons of tar per year, 35,321 tons of crude benzene per year, 27,293 tons of ammonium sulfate per year, 5,203 tons of sulfur per year, 5,321 tons of ammonium thiocyanate per year, 28,250 tons of ammonium thiocyanate per year, 942 tons of thiosulfate per year, 100,000 tons of LNG per year, 100,000 tons of liquid ammonia per year, and 26 million Nm3 per year of fuel gas (with hydrogen accounting for 428–664% and nitrogen accounting for 33.6–51.75% of its composition). In September 2020, the first coke oven of the project was officially ignited for heating.