Zn‐based MCM‐41 supporter sorbents were prepared using the microwave in‐situ oxidation method. Other sorbents were heated using a conventional heating method to contrast the performance for H₂S removal. The sorbents were tested at 500°C in fixed reactor and dried simulated Texaco coal gas was employed for the sulphurized atmosphere. The results show that sorbents prepared by microwave oxidation had a better toleration for the adsorption of H₂S. A 13.2% improvement occurred in the sulphur capacity of the sorbents heated by the microwave method. XRD, SEM with EDS‐element mapping, TEM, N₂ adsorption, and XPS were used to characterize the properties of the sorbents. Due to the selective heating of the microwave and the superiority of the in‐situ oxidation method, the sorbents heated by microwave exhibited more appropriate structures for sulphurization. Meanwhile, the even heating environment supplied by the microwave resulted in a more uniform distribution of the active component. The microwave also had an effect on the chemical bond and reduced the binding energy of the active component, which enhanced the reactivity between the H₂S and the sorbents. The preferable features generated by microwave in‐situ oxidation accelerate the replacement of S to O, and therefore the Zn‐based MCM‐41 sorbents prepared by the microwave method have an increased capability for H₂S removal in high temperature coal gas.

中文翻译：

---

微波原位氧化制备介孔MCM-41负载的锌吸附剂以去除煤气中的H2S

使用微波原位氧化方法制备了基于锌的MCM-41载体吸附剂。使用常规加热方法加热其他吸附剂，以对比去除H ₂ S的性能。吸附剂在固定反应器中于500°C进行测试，干燥的模拟Texaco煤气用于硫化气氛。结果表明，微波氧化制备的吸附剂对H ₂ S的吸附具有更好的耐受性。微波加热的吸附剂的硫容量提高了13.2％。XRD，具有EDS-元素映射的SEM，TEM，N ₂吸附和XPS用来表征吸附剂的特性。由于微波的选择性加热和原位氧化方法的优越性，微波加热的吸附剂表现出更合适的硫化结构。同时，由微波提供的均匀加热环境导致活性成分的分布更加均匀。微波还对化学键产生影响，并降低了活性成分的结合能，从而提高了H ₂ S与吸附剂之间的反应性。微波原位氧化产生的优选特征加速了S向O的置换，因此，通过微波方法制备的Zn基MCM-41吸附剂对H ₂的吸附能力增强。在高温煤气中脱硫。