Pd/TiO2 washcoated cordierite minimonoliths for hydrodechlorination of light organochlorinated compounds

被引:25
作者
Gonzalez, Carlos A.
Ardila, Alba N.
de Correa, C. Montes
Martinez, Miguel A.
Fuentes-Zurita, Gustavo
机构
[1] Univ Antioquia, Sede Invest Univ, Environm Catal Res Grp, Medellin, Colombia
[2] Univ Autonoma Metropolitana Iztapalapa, Dept Ingn Proc Hidraul, Mexico City 09340, DF, Mexico
关键词
D O I
10.1021/ie070713r
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
Pd over TiO2 (sol-gel and Hombikat uv-100) slurries with and without binders have been deposited on square-channel cordierite honeycombs, and vibration, heat, and abrasion resistance of washcoated minimonoliths have been evaluated. Activity tests were carried out in a microreactor operated at differential conditions. Fresh and used catalyst samples were characterized by elemental analysis, XRD, BET, H-2-chemisorption, H-2-TPR, NH3-TPD, UV-vis, and SEM in order to assess not only the properties but also the homogeneity of catalyst layers. The results show that washcoat loading and catalytic performance are affected by the kind of binder used in the slurry. Washcoat differences are also found regarding vibration, heat, and abrasion resistance.
引用
收藏
页码:7961 / 7969
页数:9
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