The Zn-Al mixed metal oxide (ZnAl-MMO) with a plate-like structure was derived from Zn-Al layered double hydroxide. The ZnAl-MMO with a Zn/Al molar ratio of 3:1 exhibits superior absorption ability for H₂S in a simulated coal gas at 600 ℃ due to the special structure of the ZnAl-MMO. Besides ZnS, elemental sulfur is also produced during the desulfurization process. The deactivation model could well simulate the absorption behavior of H₂S. The sulfidation reaction over the sorbent shows large initial reaction rate constants (1110–5390 m³ min^-1 kg^-1) and low activation energy (29.5 kJ mol⁻¹). The regeneration rate of the used sorbent can reach 99.8% under the optimum conditions. The regenerated sorbents still show high sulfur capacity (ca. 30%), implying its great application potential for industrial-scale desulfurization of the hot coal gas.

具有板状结构的Zn-Al混合金属氧化物（ZnAl-MMO）由Zn-Al层状双氢氧化物衍生而来。Zn / Al摩尔比为3：1的ZnAl-MMO由于ZnAl-MMO的特殊结构，在600℃的模拟煤气中对H ₂ S表现出优异的吸收能力。除ZnS外，脱硫过程中还会产生单质硫。失活模型可以很好地模拟H ₂ S的吸收行为。吸附剂上的硫化反应显示出较大的初始反应速率常数（1110-5390 m ³  min ^-1 kg ^-1）和较低的活化能（29.5 kJ mol ^-1）。在最佳条件下，所用吸附剂的再生率可以达到99.8％。再生的吸附剂仍显示出高硫容量（约30％），这表明其在工业规模的热煤气脱硫方面具有巨大的应用潜力。