TY - GEN
T1 - Selective removal of sulfur from model diesel fuel over regenerable metal oxide adsorbents for fuel cell applications
AU - Sun, Fuxia
AU - Shingo, Watanabe
AU - Ma, Xiaoliang
AU - Song, Chunshan
PY - 2006
Y1 - 2006
N2 - Our recent research indicated that adsorbents containing Ti-Ce-O metal oxides can be made selective towards sulfur compounds. In the present work, oxidatively regenerable metal oxide adsorbents, M-Al-Ti-Ce-O (M = Zr, V, Zn, Cr, Co, Ni and Mo), were prepared by urea-gelation/ co-precipitation method and tested for removing sulfur from liquid hydrocarbon fuel. Liquid-phase adsorption of a model diesel fuel containing sulfur compounds, aromatics and olefin was conducted over these adsorbents and a supported oxide CoMo/Al2O3 at room temperature under atmospheric pressure in a batch adsorption system. The adsorptive capacity, selectivity and regenerability of the adsorbents were investigated. The adsorbents were characterized by XRD, BET and SEM methods and the results correlated with their adsorption performance. The results indicate that these multi-metal oxides have higher sulfur adsorptive capacity and sulfur adsorptive selectivity than that of commercial CoMo/Al2O3. The sulfur adsorptive capacity of model fuel over Mo-Al-Ti-Ce-O can be increased by 48.4% than that of CoMo/Al2O3. The multi-metal oxides, M-Al-Ti-Ce-O (M = Zr, Cr, Co, Ni and Mo), prefer to adsorb sulfur compounds rather than aromatics coexisting in the model fuel. These multi-component metal oxides can be regenerated in air and have better oxidatively regenerable stability.
AB - Our recent research indicated that adsorbents containing Ti-Ce-O metal oxides can be made selective towards sulfur compounds. In the present work, oxidatively regenerable metal oxide adsorbents, M-Al-Ti-Ce-O (M = Zr, V, Zn, Cr, Co, Ni and Mo), were prepared by urea-gelation/ co-precipitation method and tested for removing sulfur from liquid hydrocarbon fuel. Liquid-phase adsorption of a model diesel fuel containing sulfur compounds, aromatics and olefin was conducted over these adsorbents and a supported oxide CoMo/Al2O3 at room temperature under atmospheric pressure in a batch adsorption system. The adsorptive capacity, selectivity and regenerability of the adsorbents were investigated. The adsorbents were characterized by XRD, BET and SEM methods and the results correlated with their adsorption performance. The results indicate that these multi-metal oxides have higher sulfur adsorptive capacity and sulfur adsorptive selectivity than that of commercial CoMo/Al2O3. The sulfur adsorptive capacity of model fuel over Mo-Al-Ti-Ce-O can be increased by 48.4% than that of CoMo/Al2O3. The multi-metal oxides, M-Al-Ti-Ce-O (M = Zr, Cr, Co, Ni and Mo), prefer to adsorb sulfur compounds rather than aromatics coexisting in the model fuel. These multi-component metal oxides can be regenerated in air and have better oxidatively regenerable stability.
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M3 - Conference contribution
AN - SCOPUS:34047270753
SN - 0841274266
SN - 9780841274266
T3 - ACS National Meeting Book of Abstracts
BT - Abstracts of Papers - 232nd American Chemical Society Meeting and Exposition
T2 - 232nd American Chemical Society Meeting and Exposition
Y2 - 10 September 2006 through 14 September 2006
ER -