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Xylene separation on a diverse library of exchanged faujasite zeolites

MICROPOROUS AND MESOPOROUS MATERIALS (2017)

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MICROPOROUS AND MESOPOROUS MATERIALS
卷 247, 期 -, 页码 52-59

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ELSEVIER SCIENCE BV
DOI: 10.1016/j.micromeso.2017.03.026

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Xylenes; Faujasite; Adsorption; PCA; Classification

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Chemistry, Applied Chemistry, Physical Nanoscience & Nanotechnology Materials Science, Multidisciplinary

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For the first time, a systematic, consistent domain exploration has been conducted on mono- and bicationic exchanged X and Y faujasites for xylene separation using a combinatorial approach. In total, a large, diverse library of 68 faujasites exchanged with alkali cations (Na+, K+, Cs+) and alkali earth cations (Ca2+, Ba2+) was prepared and tested in the presence of three distinct mixture conditions of relevance to the separation process. From the measurements of the 68 x 3 breakthrough curves, we calculated separation performances for the three xylene isomers (p-, m-, o-X), EB, and PDEB. The set of performance properties generated for each adsorbent was analyzed by statistical methods enabling sorting into different classes of selective adsorbents. A rational mapping of exchanged faujasites for xylene separation was performed. (C) 2017 Elsevier Inc. All rights reserved.

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