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Environmental Impact Assessment for the Hydrogen Production Project Using Coke Oven Gas in Shanxi Antai Group – Author/Source: Gasification World – Date: 2023-04-24 – Clicks: 13. Recently, the environmental impact assessment document for Shanxi Antai Group Co., Ltd.’s project to produce hydrogen using 30,000 m3/h of coke oven gas was submitted to the Shanxi Provincial Department of Ecology and Environment for approval. Construction location: Jiexiu Chemical Circular Economy Industrial Park. Total investment: 645.29 million yuan. Nature of construction: New construction. Scope of construction: The main components of the project include process production facilities such as coke oven gas compression, TSA pretreatment, advanced desulfurization, pure oxygen conversion, shift reaction, decarburization, PSA hydrogen production, hydrogen filling stations, and air separation units; as well as auxiliary facilities such as circulating water systems, control rooms, fire protection and fresh water systems, reclaimed water reuse systems, area cabinet rooms, and area power distribution rooms. The designed treatment capacity for coke oven gas is 15,000 m3/h for the first phase of treatment ； The capacity for the second-stage treatment of coke oven gas is 15,000 m3/h. The project uses the gas generated as a by-product of existing coke ovens as raw material. Taking advantage of the high hydrogen content in coke oven gas, it employs processes such as gas compression, TSA pretreatment, precise desulfurization, conversion with pure oxygen, shift reaction, decarburization, PSA hydrogen extraction, and hydrogen compression to produce hydrogen, thereby enhancing the value-added utilization of coke oven gas. Shanxi Antai Holding Group Co., Ltd. is located in the Jieyou Chemical Circular Economy Industrial Park in Jieyou City, Jinzhong Province, Shanxi Province. It currently owns Shanxi Antai Group Co., Ltd., Shanxi Hong’an Coking Technology Co., Ltd., Shanxi Xintai Iron & Steel Co., Ltd., and Shanxi Antai Section Steel Co., Ltd.; it is a comprehensive steel manufacturing enterprise that encompasses processes such as coking, sintering, iron smelting, steelmaking, rolling, and lime production. The coke oven gas for this project comes from the 2 million tons per year coking technology upgrade project of Shanxi Antai Group Co., Ltd. The existing project is located in the Chemical Circular Economy Industrial Park of Jiexiu Economic and Technological Development Zone. The project uses the coke oven gas from the existing coking plant as the feed gas, which enters a gas holder for buffering and pressure stabilization. The feed gas exiting the gas holder undergoes compression, purification, deep desulfurization, pure oxygen conversion, carbon monoxide shift, MDEA decarburization, PSA hydrogen extraction, and hydrogen compression to produce hydrogen.