CAJ | 학술논문

为了解CuO/Cl负载对活性炭吸附剂汞脱除特性的影响,开展了利用HCI,Cu(NO_3)_2·3H_2O,Cu(NO_3)_2·3H_2O混合NH_4Cl溶液3种浸渍负栽处理方法获得的活性炭吸附材料汞脱除性能实验研究.汞吸附实验在实验室规模的固态吸附刺汞吸附效能测定系统上进行.结果表明,3种负载改性的活性炭对单质汞的吸附能力均高于原始活性炭,且所获得的汞吸附能力从低到高依次为AC-CuO,AC-HCl,AC-CuO(Cl).活性炭负载CuO/Cl可以使吸附反应器出口处烟气中含有40%以上的二价汞,吸附能力的提高可归因于CuO对活性炭表面汞氧化的催化作用.温度提高有利于催化氧化过程,实际运行工况的最佳温度区间为370～470K.随着SO2浓度的升高,汞吸附能力明显降低.
위료해CuO/Cl부재대활성탄흡부제홍탈제특성적영향,개전료이용HCI,Cu(NO_3)_2·3H_2O,Cu(NO_3)_2·3H_2O혼합NH_4Cl용액3충침지부재처리방법획득적활성탄흡부재료홍탈제성능실험연구.홍흡부실험재실험실규모적고태흡부자홍흡부효능측정계통상진행.결과표명,3충부재개성적활성탄대단질홍적흡부능력균고우원시활성탄,차소획득적홍흡부능력종저도고의차위AC-CuO,AC-HCl,AC-CuO(Cl).활성탄부재CuO/Cl가이사흡부반응기출구처연기중함유40%이상적이개홍,흡부능력적제고가귀인우CuO대활성탄표면홍양화적최화작용.온도제고유리우최화양화과정,실제운행공황적최가온도구간위370～470K.수착SO2농도적승고,홍흡부능력명현강저.
In order to understand the effect of a CuO/Cl-impregnated active carbon on the mercury catalytic oxidation,a series of active carbons are prepared by impregnation with hydrogen chloride,copper nitrate and copper nitrate mixed with ammonium chloride.The laboratory studies on the characteristics of the catalytic oxidation of vapour-phase elemental mercury are conducted in a laboratory-scale fixedbed reactor through these active carbons-supported CuO/Cl.Experimental results show that all of these impregnation methods enhance the elemental mercury removal capacities and the order of the removal capacity of elemental mercury is shown as follows:AC-CuO<AC-HCI<AC-CuO(Cl).The result shows the occurrence of catalytic oxidation and chemisorption on the catalytic effect of CuO,and confirms that the proportion of the oxidized mercury in all speciations is above 40%at the outlet of the reactor.The adsorption tests over a wide range of temperatures indicate that the higher temperature can prompt the process of catalytic oxidation and the optimum reaction temperature among 370～470 K.The presence of sulphur dioxide suppresses the removal activity of the elemental mercury.