为消除气体中硫化氢对人类及生态环境的危害和对工业生产的影响，提出用氢氧化铁（亚铁）的“醋酸─醋酸钠（钾）－氨”的缓冲水溶液，在对苯二酚或水杨酸的催化下，脱除气体中的硫化氢、少量二氧化碳和部分氧气；脱硫液自动再生，产生单质硫.脱硫后气体中硫化氢含量可降至1.52mg·m~(-3)以下，成本低，操作稳定，腐蚀轻，无环境污染．同时，建立了相应的数学模型，经实验验证，实验结果与数学模型基本符合． In order to eliminate the harm of hydrogen sulfide to human beings and the ecological environment and the impact on industrial production, the paper proposes a buffer solution of “acetic acid-sodium acetate (potassium) -ammonium acetate” of ferric hydroxide (ferrous iron) Or salicylic acid, the hydrogen sulfide, a small amount of carbon dioxide and some oxygen in the gas are removed, and the desulfurization solution is automatically regenerated to generate elemental sulfur. The content of hydrogen sulfide in the gas after desulfurization can be reduced to 1.52 mg · m -3, The following, low cost, stable operation, light corrosion, no environmental pollution. At the same time, the corresponding mathematical model is established, and the experimental results show that the experimental results are basically in line with the mathematical model.