以焦炉煤气为原料气，在实验室中对络合铁催化剂进行适应性研究，分析了络合铁催化及脱除H₂S机理。并在焦化企业脱硫装置进行了工业试用，考察了pH、氧化还原电位、再生空气量对脱硫过程的影响，结果表明，在使用了络合铁催化剂后，焦炉煤气中硫化氢含量从2.0~4.0 g/m³降到20 mg/m³以下，脱硫装置运行稳定，无脱硫废液排出。

Using coke oven gas as feedstock gas,the adaptability of complex iron catalysts is studied in laboratory.Catalytic mechanism of complex iron catalyst and H₂S removal mechanism over it are analyzed.Its industrial trial is conducted in a desulfurization unit of a coking enterprise.The influences of PH,redox potential,and air volume for regeneration on the desulfurization process are investigated.It is shown that the content of H₂S in coke oven gas drops from 2.0-4.0 g·m^-3 to below 20 mg·m^-3 after the use of complex iron catalyst,the desulfurization unit runs stably and there is no discharge of desulfurization waste liquid.