Preparation,performance index and application prospect of metal oxides for mercury removal
Elemental mercury in flue gas is extremely difficult to dissolve in water and has high volatility,which is difficult to be removed by existing equipment,which is also the main factor causing environmental pollution.Metal oxide adsorption method is one of the most widely used methods to control the elemental mercury emission from coal-fired flue gas.The development of adsorbents with low cost,high efficiency and cleanliness is a research hotspot.The research status and progress of metal oxide mercury removal adsorbents were reviewed.The types and mechanism of common metal oxide mercury removal adsorbents were comprehensively described.The traditional preparation methods and innovative methods of metal oxide adsorbents were sorted out.The adsorption performance indexes of metal oxide mercury removal adsorbents were proposed and statistically compared.The application conditions of metal oxide mercury removal adsorbents in coal-fired flue gas were analyzed.The research of metal oxide adsorbents was summarized,suggested and prospected,which provides new ideas and methods for the pollution control of elemental mercury in flue gas.
万方数据
维普
