Synthesis of Ag/SBA-15 as adsorbent for propane/propylene separation

被引：0
|
作者：
Basaldella, EI [1 ]
Vázquez, PG [1 ]
Firpo, NF [1 ]
机构：
[1] UNLP, CONICET, CIC, Ctr Invest & Desarrollo Ciencias Aplicadas Dr Jor, La Plata, Buenos Aires, Argentina
来源：
MOLECULAR SIEVES: FROM BASIC RESEARCH TO INDUSTRIAL APPLICATIONS, PTS A AND B | 2005年 / 158卷
关键词：
D O I：
暂无
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Mesoporous silica SBA-15 was used as support for the synthesis of pi-complexation adsorbents. Samples of mesoporous silica containing variable quantities of AgNO3 were prepared in order to study changes in the Ag+ dispersion produced by different thermal treatments. The samples were activated by heating at different temperatures in air. The solids were characterized by XRD, nitrogen adsorption, EDX, SEM, TEM, FT-IR, TPR and the corresponding propylene equilibrium adsorption curves were obtained. It was found that thermal treatment conducted at about 100 degrees C in air produces high salt dispersion and prevents the transformation in Ag2O or Ag degrees. Activated samples having intermediate values of Ag concentration showed the highest propylene adsorption capacity.
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页码：1081 / 1088
页数：8
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