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Progress of Tianchen’s General Contracting Project for Gasification-based Hydrogen Production / Author/Source: Huahua Net Coal Chemicals / Date: 2023-03-15 / Clicks: 11 On March 9–10, the northern frames of the coal slurry preparation unit and the acid gas removal unit in the gasification-based hydrogen production section of Shandong Yulong Petrochemical Co., Ltd.’s Yulong Island integrated refining and chemical complex, which is under the construction of China Tianchen Engineering Co., Ltd., were completed. This represents another key milestone in this project, following the completion of the framing on the south side of the syngas conversion unit and the framing on the south side of the acid gas removal unit in mid-January of this year. It is reported that the frames on the north side of the coal slurry preparation unit and the acidic gas removal unit are the two structures with the largest amount of civil engineering work within the scope of the coal gasification for hydrogen production project. Among them, the frame related to coal slurry preparation involves projects that are considered high-risk or extremely high-risk, requiring the development of specialized plans and expert evaluations. To meet the target deadlines for framework construction, the designers overcame the significant challenges posed by project capacity constraints and adjustments to the overall layout. They worked overtime to ensure a steady supply of construction drawings, while on-site technical managers took proactive action by organizing the construction teams to develop construction plans and conducting expert reviews, thereby making every effort to resolve various construction issues. The first phase of the Shandong Yulongdao integrated refining and chemical project is planned to have a crude oil processing capacity of 20 million tons per year as well as 2 ethylene production units with a capacity of 1.5 million tons each per year; the total investment required for this project is approximately 127.4 billion yuan. The coal-to-hydrogen process route for this project includes multi-nozzle water-coal slurry gasification, three-stage sulfur-resistant shift reaction, low-temperature methanol washing to remove acidic gases, and PSA hydrogen purification. The designed capacity of the plant is 220,000 m3/h of hydrogen with a purity of 99.9%, which corresponds to 114,000 tons of pure hydrogen per year. Gasification is carried out using a multi-nozzle opposed gasification technology. The inner diameter of the gasifier is 3880 mm, with a design pressure of 6.5 MPa; there are 2 units in operation and 1 as a backup.