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The Linyi Branch conducted a benchmarking study on the fixed-bed gas generation renovation project. Author/Source: Lu’an Chemical Fengxi Group; Date: May 19, 2022; Page views: 16. On May 12, an inspection team for the fixed-bed gas generation renovation, organized by the Technical Center of the Linyi Branch, visited Shanxi Xifenghang Chemical Co., Ltd. for academic exchanges. It was learned that the optimization and upgrading of the fixed-bed gas generation unit in Shanxi Xifenghang Chemical Co., Ltd.’s No. 1 ammonia synthesis system was carried out in 2019. An energy-saving technical transformation was carried out using a raw material processing route based on continuous pure-oxygen gasification in a micro-pressure fixed-bed system. The main equipment includes fixed-bed pure-oxygen gas generators, oxygen and steam mixing tanks, cyclone dust collectors, waste heat recoverers, and gas cooling towers. There are 4 Φ3000 pure-oxygen gas generators in total; the raw coal used is in the form of lumps with a size of 6–30 mm. The coal consumption per ton of ammonia produced is 1.1 tons, and the gas production capacity is designed to be 10,000 Nm3/h, with the effective gas composition consisting of ≥80% CO + H2. The annual production of synthetic ammonia amounts to 80,000 tons (74,500 tons of synthetic ammonia and 5,500 tons of methanol). Through modifications, the energy consumption and costs per ton of ammonia were reduced, the regional competitiveness of the products was enhanced, leaks on site were eliminated, and the area became very clean and tidy. It is reported that the company’s environmental protection comprehensive renovation project for its No. 2 gasification system is underway, involving corresponding upgrades to the utility systems such as water, electricity, and steam across the entire system. Once completed, these upgrades will meet the company’s production capacity requirement of 600 tons of ammonia per day.