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《Journal of Functional Materials》 2010-12
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Adsorption of sulfur-containing compounds on CuCl/SBA-15 molecular sieve prepared by the thermal diffusion method

SHAN Jia-hui1,LIU Xiao-qin2(1.School of Chemistry and Chemical Engineering,Nantong University,Nantong 226019,China;2.State Key Laboratory of Materials-oriented Chemical Engineering,Nanjing University of Technology,Nanjing 210009,China)  
The adsorbent CuCl/SBA-15 was prepared with the thermal diffusion method,the dispersions of CuCl on SBA-15 were studied by XRD,and adsorptive performance of the adsorbents for thiophene was investigated via static adsorption experiments.The effects of CeO2 added into the adsorbent and toluene content in model fuel on thiophene removal were also studied.The results showed that:CuCl dispersed uniformly on SBA-15 surface when CuCl loading was lower than the threshold,0.3502g CuCl/g SBA-15 measured by XRD method.When the CuCl loading amount was 0.33g CuCl/g SBA-15,the adsorbent had the best desulfurization performance and it's adsorption capacity was high to 0.8767mmol/g,indicating the threshold effect.With the addition of CeO2,the adsorption capacity improved 7.3%,and the best quality ratio was m(Ce)/m(Cu)=0.3.There was dramatic decrease in the capacity on CuCl/SBA-15 for thiophene removal in model fuel with a small toluene content,but toluene had a less effect on thiophene adsorption over CuCl/SBA-15 with CeO2.
【Fund】: 国家自然科学基金资助项目(20976082);; 南通大学自然科学基金资助项目(09Z009)
【CateGory Index】: TE624.55
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