Porous Cu-BTC material was synthesized by the solvothermal method. Powder X-ray diffraction （PXRD） was used to test the phase purity of the synthesized material and investigate its structural stability under the inf...Porous Cu-BTC material was synthesized by the solvothermal method. Powder X-ray diffraction （PXRD） was used to test the phase purity of the synthesized material and investigate its structural stability under the influence of flue gas components. The thermal stability of the material was determined through thermal gravimetric （TG） analysis. Scanning electron microscopy （SEM） was employed to study the microstructure of the material. Cu-BTC was demonstrated not only to have high CO2 adsorption capacity but also good selectivity of CO2 over N2 by means of packed bed tests. The adsorption capacity of Cu-BTC for CO2 was about 69 mL/g at 22℃. The influence of the main flue gas components on the CO2 capacity of the material were discussed as well.展开更多
In this work, a catalytic membrane using Mn/ Mo/Ru/A12O3 as the catalyst was employed to remove elemental mercury （Hg^0） from flue gas at low temperature. Compared with traditional catalytic oxidation （TCO） mode, ...In this work, a catalytic membrane using Mn/ Mo/Ru/A12O3 as the catalyst was employed to remove elemental mercury （Hg^0） from flue gas at low temperature. Compared with traditional catalytic oxidation （TCO） mode, Mn/A12O3 membrane catalytic system had much higher removal efficiency of Hg^0. After the incorporation of Mo and Ru, the production of C12 from the Deacon reaction and the retainability for oxidants over Mn/A12O3 membrane were greatly enhanced. As a result, the oxidization of Hg^0 over Mn/A12O3 membrane was obviously promoted due to incorporation of Mo and Ru. In the presence of 8 ppmv HC1, the removal efficiency of Hg^0 by Mn/Mo/Ru/A12O3 membrane reached 95% at 423 K. The influence of NO and SO2 on Hg^0 removal were insignificant even if 200 ppmv NO and 1000 ppmv SO2 were used. Moreover, compared with the TCO mode, the Mn/Mo/Ru/A12O3 membrane catalytic system could remarkably reduce the demanded amount of oxidants for Hg^0 removal. Therefore, the Mn/Mo/Ru/A12O3 membrane catalytic system may be a promising technology for the control of Hg~ emission.展开更多
文摘Porous Cu-BTC material was synthesized by the solvothermal method. Powder X-ray diffraction （PXRD） was used to test the phase purity of the synthesized material and investigate its structural stability under the influence of flue gas components. The thermal stability of the material was determined through thermal gravimetric （TG） analysis. Scanning electron microscopy （SEM） was employed to study the microstructure of the material. Cu-BTC was demonstrated not only to have high CO2 adsorption capacity but also good selectivity of CO2 over N2 by means of packed bed tests. The adsorption capacity of Cu-BTC for CO2 was about 69 mL/g at 22℃. The influence of the main flue gas components on the CO2 capacity of the material were discussed as well.
文摘In this work, a catalytic membrane using Mn/ Mo/Ru/A12O3 as the catalyst was employed to remove elemental mercury （Hg^0） from flue gas at low temperature. Compared with traditional catalytic oxidation （TCO） mode, Mn/A12O3 membrane catalytic system had much higher removal efficiency of Hg^0. After the incorporation of Mo and Ru, the production of C12 from the Deacon reaction and the retainability for oxidants over Mn/A12O3 membrane were greatly enhanced. As a result, the oxidization of Hg^0 over Mn/A12O3 membrane was obviously promoted due to incorporation of Mo and Ru. In the presence of 8 ppmv HC1, the removal efficiency of Hg^0 by Mn/Mo/Ru/A12O3 membrane reached 95% at 423 K. The influence of NO and SO2 on Hg^0 removal were insignificant even if 200 ppmv NO and 1000 ppmv SO2 were used. Moreover, compared with the TCO mode, the Mn/Mo/Ru/A12O3 membrane catalytic system could remarkably reduce the demanded amount of oxidants for Hg^0 removal. Therefore, the Mn/Mo/Ru/A12O3 membrane catalytic system may be a promising technology for the control of Hg~ emission.
