错流旋转填料床中湿式氧化法脱除气体中硫化氢

以H₂S和空气模拟含硫工业气体，以错流旋转填料床为脱硫设备，采用湿式氧化法进行脱硫实验。考察了气/液体积比、气体流量、超重力因子、Na₂CO₃浓度、原料气中H₂S含量等工艺参数对脱硫率和气相总体积传质系数的影响规律。研究结果表明，在气液接触时间小于1 s的情况下，脱硫率达到95％以上。错流旋转填料床湿式氧化法脱硫工艺可实现快速、高效脱硫，且脱硫设备体积小、操作弹性大、节能降耗，具有工业化应用潜力。

Hydrogen Sulfide Removal by Wet Oxidation Method in a Cross-Flow Rotating Packed Bed

A wet oxidation method,in which a mixture of hydrogen sulfide and air was employed to play a role of sulfur-containing industrial gases,was carried out to study removal of hydrogen sulfide in a cross-flow rotating packed bed.The influences of gas/liquid volume ratio,gas flow rate,high gravity factor,concentration of sodium carbonate and hydrogen sulfide content in feed gas on H2S removal efficiency and gas-phase overall volumetric mass transfer coefficients were investigated in details.It was illustrated that H2S removal efficiency was more than 95% and the contact time between gas and liquid was less than 1 s.Further,such a cross-flow rotating packed bed desulphurization method showed a potential industrial application due to its great advantages of smaller volume,higher desulphurization efficiency,lower liquid/gas volume ratio,larger operating flexibility,lower energy consumption,etc..