Xylene Isomerization in a ZSM-5/SS Membrane Reactor |
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| Authors: | Ana M Tarditi G I Horowitz E A Lombardo |
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| Affiliation: | 1. Instituto de Investigaciones en Catálisis y Petroquímica (FIQ, UNL-CONICET), Santiago del Estero 2829, 3000, Santa Fe, Argentina
2. Repsol-YPF, Baradero S/N, 1925, Ensenada, Buenos Aires, Argentina
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| Abstract: | A membrane reactor containing different types of ZSM-5/porous SS membranes was used to perform the xylene isomerization reaction. The parent Na-ZSM-5 layer was synthesized by secondary growth on top of porous stainless steel tubes. The xylene isomerization reaction was carried out at different temperatures in the membrane reactor and in a fixed-bed reactor of identical geometry for comparison. Two different kinds of membranes were prepared by ion exchange: a Pt/H-ZSM-5 catalytic membrane and two Ba-ZSM-5 composites with different Ba2+ concentration. The p-xylene production using 100% exchanged Ba-membrane was about 28% higher than the fixed-bed reactor at 370 °C, when m-xylene was fed. |
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