摘要
高温煤气净化脱硫技术可使发电效率提高,成本降低,流程简化,是许多国家非常重视的研发工作。可再生金属氧化物与硫化氢或其他硫化物的作用机理及其行为是高温煤气脱硫研究中的关键所在。在已有文献工作的基础上,对国内外高温煤气脱硫剂的研究进行了系统总结,着重介绍了含钙、锌、铁、铜和锰等金属氧化物脱硫剂的研究现状,认为研究重点应从性能单一的金属氧化物转向可耐高温的多功能复合金属氧化物,同时具有再生硫回收的特性。
Hot coal gas desulfurization, which can enhance efficiency of IGCC electric generation, lower electricity cost and simplify the process, has been paid much attention. The key to researches in this aspect are mechanism of the interaction between regeneratible metal oxides and hydrogen sulfide and other sulfides, and behaviors of the oxides. Latest researches in the sorbents for high temperature coal gas desulfurization were reviewed in this paper, especially calcium-, zinc-, iron-, copper-and manganese-based sorbents. The trends in this field would be a transfer from single metal oxide to multifunctional mixed metal oxides with high-temperature resistance and good regeneratibility.
出处
《工业催化》
CAS
2005年第11期6-11,共6页
Industrial Catalysis
基金
国家重点基础研究发展计划(973)项目资助课题(2005CB221203)
关键词
高温煤气
脱硫
金属氧化物
hot coal gas
desulfurization
sorbent
metal oxides
