Abstract:

This paper summarizes the research progress of the removal of hydrogen sulfide from coal gas by the dry method with activated-carbon, metal oxides, complex metal oxides and activated-carbon supported metal oxides.The characteristics of activated-carbon and metal oxides as sorbents are analyzed, including treatment temperature, desulfurization efficiency and regeneration, etc.The complex metal oxides and activated-carbon supported metal oxides are regarded as prospective sorbents for industrial applications and have better performance during desulfurization and regeneration.According to the mechanisms of desulfurization, it is feasible to prepare sorbents for desulfurization with semi-coke and metal oxides due to the similarity of semi-coke and activated carbon in their properties.

摘要：

综述了活性炭、金属氧化物、复合金属氧化物和活性炭负载金属氧化物干法脱除H₂S的研究进展.分析了活性炭和单一金属氧化物在使用温度、脱硫效率和再生等方面的优缺点，指出复合金属氧化物和活性炭负载金属氧化物在使用温度、硫化效率和再生性能等方面都有很大改进，是应用前景广阔的脱硫剂.根据它们脱硫的原理和特点，结合半焦和活性炭性质上的相似性，对半焦负载金属氧化物制备脱硫剂的可行性进行了探讨.