超重力湿式氧化法脱除气体中硫化氢工程化应用研究

工业气体中H2S的脱除对于合理利用资源及环境保护意义重大。本文将超重力设备－超重机作为吸收设备，采用湿式氧化法脱除气体中H2S，在处理煤气量为10000Nm3/h的规模上进行工程化应用研究。考察了碱源种类及浓度、液气比、超重力因子、原料气中H2S含量等工艺参数对脱硫效率的影响规律，确定了适宜的工艺条件；在适宜的条件下，获得了98.0%以上的脱硫效率。连续运行结果表明：超重力湿式氧化法脱硫工艺，脱硫效率高且稳定、液气比小、脱硫设备体积小，操作弹性大，节能降耗。

Study on Industrial Application of Hydrogen Sulfide Removal by Wet Oxidation Method with High Gravity Technology

The removal of hydrogen sulfide from gas plays an important role in rational utilization of resources and environ- mental protection. In this paper, the process of hydrogen sulfide removal by wet oxidation method in a rotating packed bed was investigated in a scale for treating 10 000 Nm3/h of gas. On the basis of studying the influence of the species and con- centration of alkali source, the liquid/gas volume ratio, the high gravity factor, and the hydrogen sulfide content in feed gas on the desulfurization effect, the suitable technological conditions were obtained. The hydrogen sulfide removal efficiency could reach 98.0% under these conditions. The results of continuous operation of process facilities showed that the high gravity method has many merits including higher desulfurization rate, good stability in operation, lower liquid/gas volume ratio, greater operation elasticity, and apparent energy saving effects.