Natural mordenite （NMOR）, modified by acid treatment and ion-exchange, was employed for NO adsorption in the present study. The NO storage capacity of modified NMOR was greatly improved compared with its original co...Natural mordenite （NMOR）, modified by acid treatment and ion-exchange, was employed for NO adsorption in the present study. The NO storage capacity of modified NMOR was greatly improved compared with its original correspondents, mainly due to the preservation of crystalline structure and the improvement of surface area of NMOR. Among all the modified NMOR, Ni-NMOR exhibited the highest adsorption capacity for NO （1.20 mmol-g^ 1） in the presence of 10% 02 at 308 K. The influence of the main ingredients in flue gas on the storage capacity of NMOR for NO had also been investigated. In general, H2O, CO2 and SO2 all displayed negative impact on NO adsorption due to their competitive adsorption on the surface of NMOR with NO, while the presence of 02 greatly improved the adsorption of NO because of the formation of NO2 and N203. Moreover, Ni-NMOR exhibited high efficiency for NOx removal through the NOx adsorption-plasma discharge process.展开更多
基金Supporting information for this article is available on the WWW under http：//dx.doi.org/10.1002/cjoc.201200102 or from the authorAcknowledgement This work was financially supported by the Major Project of Zhejiang Province （No. 2009Cl1141）, the National Natural Science Foundation of China （No. 20977080） and the Natural Science Foundation of Zhejiang Province （No. J20091504）. We are also grateful to the assistance from Xiamen University for the situ-FI-IR test.
文摘Natural mordenite （NMOR）, modified by acid treatment and ion-exchange, was employed for NO adsorption in the present study. The NO storage capacity of modified NMOR was greatly improved compared with its original correspondents, mainly due to the preservation of crystalline structure and the improvement of surface area of NMOR. Among all the modified NMOR, Ni-NMOR exhibited the highest adsorption capacity for NO （1.20 mmol-g^ 1） in the presence of 10% 02 at 308 K. The influence of the main ingredients in flue gas on the storage capacity of NMOR for NO had also been investigated. In general, H2O, CO2 and SO2 all displayed negative impact on NO adsorption due to their competitive adsorption on the surface of NMOR with NO, while the presence of 02 greatly improved the adsorption of NO because of the formation of NO2 and N203. Moreover, Ni-NMOR exhibited high efficiency for NOx removal through the NOx adsorption-plasma discharge process.
