Propane/propylene separation by selective olefin adsorption on Cu/SBA-15 mesoporous silica

被引:30
作者
Basaldella, EI
Tara, JC
Armenta, GA
Patiño-Iglesias, ME
Castellón, E
机构
[1] Nacl La Plata Univ, CONICET, CIC, Res & Dev Ctr Appl Sci Dr Jorge J Ronco, RA-1900 La Plata, Argentina
[2] Univ Autonoma Puebla, Fac Ciencias Quim, Ctr Invest, Puebla 72570, Mexico
[3] Univ Malaga, Fac Ciencias, Dept Quim Inorgan, E-29071 Malaga, Spain
关键词
SBA-15; propane; propylene separation; olefin selective adsorption;
D O I
10.1007/s10971-006-6434-y
中图分类号
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Samples of mesoporous silica, SBA-15, were prepared under hydrothermal conditions and Cu cations were incorporated into the framework by two different impregnation techniques. The corresponding adsorption/desorption isotherms of propylene, propane, and N-2 were measured to evaluate the material's effectiveness in the separation of propane/propylene mixtures. Adsorption uptake of propylene increased and that of propane decreased in Cu containing samples as compared to the uptakes observed in undoped SBA-15 samples. It was demonstrated that the presence of Cu atoms in the adsorbent lattice led to a greater selectivity towards propylene. Furthermore, the highest level of Cu(I) were obtained in samples prepared by equilibrium impregnation, which in turn improved the olefin/paraffin uptake ratio. Under some working conditions, the amount of propylene adsorbed in selected samples is totally reversible while propane uptake was negligible.
引用
收藏
页码:141 / 146
页数:6
相关论文
共 6 条
[1]   THE DETERMINATION OF PORE VOLUME AND AREA DISTRIBUTIONS IN POROUS SUBSTANCES .1. COMPUTATIONS FROM NITROGEN ISOTHERMS [J].
BARRETT, EP ;
JOYNER, LG ;
HALENDA, PP .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1951, 73 (01) :373-380
[2]  
BASALDELLA EI, 2003, 6 NAT C AIZ VIETR MA
[3]   New π-complexation adsorbents for propane-propylene separation [J].
Grande, CA ;
Araujo, JDP ;
Cavenati, S ;
Firpo, N ;
Basaldella, E ;
Rodrigues, AE .
LANGMUIR, 2004, 20 (13) :5291-5297
[4]  
Gregg S. J., 1982, ADSORPTION SURFACE A, P285
[5]   Potential adsorbent for light hydrocarbon separation: Role of SBA-15 framework porosity [J].
Newalkar, BL ;
Choudary, NV ;
Turaga, UT ;
Vijayalakshmi, RP ;
Kumar, P ;
Komarneni, S ;
Bhat, TSG .
CHEMISTRY OF MATERIALS, 2003, 15 (07) :1474-1479
[6]   Influence of Ag content and H2S exposure on 1,3-butadiene/1-butene adsorption by Ag ion-exchanged Y-zeolites (Ag-Y) [J].
Takahashi, A ;
Yang, RT ;
Munson, CL ;
Chinn, D .
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2001, 40 (18) :3979-3988