| Issue |
Korean Journal of Chemical Engineering,
Vol.34, No.11, 2933-2943, 2017
Vol.34, No.11, 2933-2943, 2017
Evaluating the ability of separation and adsorption of SO2 by nano-CuO-Fe2O3/TiO2 in high concentrations and moderate temperatures
Nano CuO-Fe2O3/TiO2 adsorbents were made with different compositions of metal oxides using precipitation- desorption method. The adsorbents were applied for adsorption of SO2 at high concentrations ranging from 10,000 to 30,000 ppm and temperatures between 523 and 627 K. Adsorption experiments were applied for adsorbents in a laboratory fixed bed adsorption column. The adsorption capacity was measured by calculating the area under the adsorption curve using the integral method. The results showed that temperature is the most affecting factor on the adsorption capacity. The highest adsorption capacity was obtained by using 17, 8 and 75 wt% of CuO, Fe2O3 and nano TiO2, respectively. Characteristics of the best sorbent were determined by using Fe-SEM, XRD and nitrogen adsorption- desorption analyses.
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