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The construction of the technical renovation project at Qilu No.1 Chemical Plant under Lu’an Chemical Industry Group is in full swing. Author/Source: ChemNet China; Date: October 17, 2022; Page views: 12. At the construction site of the 45,000 Nm³/h syngas technical renovation project, numerous tower cranes can be seen, and machinery and vehicles are constantly moving back and forth. More than 500 construction workers are working tirelessly on-site, braving both sunny and rainy weather to ensure construction progress, adhere to schedules, and maintain safety. It’s a scene of bustling activity and intense construction efforts. The green transformation and upgrading project of Qilu No.1 Chemical Plant is being accelerated at full pace. According to the person in charge of the project department at Qilu Yihua Company, the demolition of the company’s existing facilities is nearing completion. The technical upgrade project for the company’s 45,000 Nm3/h syngas plant has been fully launched; to date, 74.19% of the civil engineering and construction work related to this project has been completed. The civil structure of the gasification framework, the coal slurry preparation framework, the structures related to conversion and heat recovery, the main body of the Coal Storage and Transportation Station No. 1, and the silos have all been completed 100%. The foundation for the low-temperature methanol washing unit is 83% complete, the civil structure of the air separation unit is 83% complete, and the civil structure for slag treatment is 79% complete ； The cumulative installation progress for steel structures, equipment, and pipelines has reached 40.02%: 60.7% of the gasification frame has been installed, 45.2% of the coal slurry preparation system has been installed, 44.4% of the rectisolve unit has been installed, 22.4% of the shift and heat recovery systems have been installed, and the cumulative installation progress for the air separation unit stands at 17.5%. This project replaces the existing fixed-bed batch gas production process with pressurized gasification of water-coal slurry, and replaces the current wet desulfurization and PSA carbon removal processes with low-temperature methanol washing for purification. For the recovery of acidic gases, the wet method for sulfuric acid production is used instead of the current batch sulfur melting recovery process. All devices employ advanced, mature, and reliable technologies. While considering technological advancement, long-term safety, energy conservation, and environmental protection, due consideration has also been given to the application of domestically produced technologies. The project utilizes and repurposes the existing Waste Treatment Furnaces No. 3 and No. 4, wastewater treatment facilities, and substations. It also constructs new utility systems such as chemical water treatment and coal storage and transportation facilities. Production units including air separation, gasification, shift conversion, rectisolve low-temperature methanol washing, PSA hydrogen production, and wet sulfuric acid production are built. A total of 415 pieces (sets) of domestically produced equipment—such as gasifiers, shift converters, and absorption towers—have been purchased. This enables a syngas production capacity of 45,000 Nm³/h, sufficient to meet the requirements of a 210,000-ton/year butanol/octanol production plant. As a project selected from the second batch of major projects for the transformation of old and new economic drivers in Shandong Province in 2020, it has received significant attention from leaders at all levels in the province and city. They have taken active steps to provide support and resolve the difficulties and issues that arise during project construction, thereby creating an optimal environment to accelerate the progress of this project. The performance of Qilu Yihua in the green transformation and upgrading project for synthetic gas production with a capacity of 45,000 Nm3/h represents an important step in putting into practice the concept that \"lucid waters and lush mountains are invaluable assets.\" It is expected that after the project is put into operation, annual profits will increase by over 60 million yuan, and safety and environmental standards will improve significantly, thereby bringing substantial social, economic, and environmental benefits to the company.