In order to develop a new removal technology for SO2, NO and CO2, which has the advantages of high efficiency, less area occupied, low investment and operation cost, and reduce of the second pollution, a series of experiments were carried out on synchronous adsorption removal of SO2, NO and CO2 from simulated flue gas using the zeolites modified by ion exchange of Cu2+, Ag+, Fe3+, and Zn2+, under the microwave irradiation. Various effects on the adsorption rates were investigated. The results indicated that the adsorption capacities of zeolite ion exchanged by Cu2+ were higher than those modified by Ag+, Fe3+, and Zn2+ orderly. When copper content in zeolite was 1.5%, the optimum adsorption rates of SO2, NO and CO2 were obtained, respectively. The power of microwave radiation also has significant effect on the adsorption rates. The higher microwave power, the higher adsorption rates of SO2 and NO, but too high microwave power leads to the decrease of CO2 adsorption capacity. With the same microwave power (600w) and the same copper content, the successive order of the adsorption amount was CO2, SO2 and NO. The adsorption capacity of SO2 and NO reached the maximum values,21.05 mg/g and 7.33mg/g, in the O2 content range of 6%~7%, respectively; while the content of O2 had less influence on the adsorption capacity of CO2. The water content also effects on the adsorption capacities of CO2 and SO2. In the presence of a small amount of water, the adsorption rates of SO2, CO2 and NO increased, but with the increasing of the water content, the increasing trend of adsorption rates of NO flattened out and the adsorption rate of CO2 and SO2 even declined, which may be caused by the competing adsorption between water and pollutants.

Synchronous adsorption of SO<sub>2,</sub> NO and CO<sub>2</sub> using modified zeolite assistant by the microwave irradiation

248th National Meeting (2014)

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.

Synchronous adsorption of SO2, NO and CO2 using modified zeolite assistant by the microwave irradiation

Synchronous adsorption of SO_2, NO and CO₂ using modified zeolite assistant by the microwave irradiation