介孔氧化铝改性及其CO_(2)吸附性能研究

Modification of Mesoporous Alumina and Its CO_(2) Adsorption Performance

近年来,化石燃料燃烧排放的CO_(2)威胁着环境,在化石燃料燃烧的同时捕集CO_(2)进行高效利用越来越关键。介孔氧化铝负载金属吸附CO_(2)前景广泛,本文通过以介孔氧化铝为载体负载不同活性金属吸附CO_(2),采用N2吸附-脱附、XRD、热重等表征评价了吸附剂的性能,金属改性的介孔氧化铝可以增加吸附剂载体的表面碱性位数量,为CO_(2)提供了更多的吸附位点,从而提高了对室温气体CO_(2)捕集。

In recent years,CO_(2) emitted from fossil fuel combustion has threatened the environment.It was increasingly critical to capture CO_(2) for efficient use while burning fossil fuels.Mesoporous alumina-supported metal adsorption of CO_(2) has broad prospects.Mesoporous alumina was used as a carrier to support different active metals to adsorb CO_(2) and N_(2) adsorption-desorption,XRD,thermograys,and other characterization were used to evaluate the performance of the adsorbent.The metal-modified mesoporous alumina could increase the number of surface basic sites of the adsorbent carrier,providing more adsorption sites for CO_(2).Thus,the room temperature gas CO_(2) capture was improved.