2007
DOI: 10.1039/b700358g
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Pure silica ITQ-32 zeolite allows separation of linear olefins from paraffins

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Cited by 87 publications
(71 citation statements)
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“…A second source (and at least equally important) is the accuracy of experimental methods and the corresponding adsorption models used during the data analysis for calculating the Henry coefficients and heats of adsorption. For instance, the experimental data on the pure silica ITQ-32 sample were obtained by some of the authors of this paper and published in ref 45 as Supporting Information. In this work, these data were fitted using the Virial formalism to describe the isotherm and the Henry coefficients were calculated at each temperature (25, 60, and 90°C).…”
Section: Alkane-zeolite Interactionmentioning
confidence: 99%
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“…A second source (and at least equally important) is the accuracy of experimental methods and the corresponding adsorption models used during the data analysis for calculating the Henry coefficients and heats of adsorption. For instance, the experimental data on the pure silica ITQ-32 sample were obtained by some of the authors of this paper and published in ref 45 as Supporting Information. In this work, these data were fitted using the Virial formalism to describe the isotherm and the Henry coefficients were calculated at each temperature (25, 60, and 90°C).…”
Section: Alkane-zeolite Interactionmentioning
confidence: 99%
“…To demonstrate that our parameters are transferable to other pure silica zeolites other than MFI, we also calculated the adsorption isotherms, together with those of Henry coefficients and isosteric heat of adsorption at infinite dilution of ethene and propene in TON, DD3R, ITQ-29, CHA, ITQ-3, and ITQ-32 zeolites and compared with experimental data available, 2,3,[42][43][44][45] as shown in Table 3 and Figures 3 and 4. Figure 3 shows for ethene the agreement between our simulations and the experiments is good for TON, ITQ-29 (our simulations agree well with the experimental data of ref 43 at 298 K, but less with that of ref 44 at 301 K, attributing to the existence of discrepancy between experimental data measured by different authors), and CHA, but less for DD3R.…”
Section: Alkane-zeolite Interactionmentioning
confidence: 99%
“…Zeolitas con poros separados por anillos formados de 8 unidades tetraédricas de SiO 4/2 (8 Member Ring, 8-MR) han sido recientemente reconocidas como candidatos potenciales para separar mezclas de compuestos con diámetros cinéticos que están en el mismo rango de las dimensiones de las ventanas. 13,[20][21][22] Ejemplos de este tipo especial de zeolitas son las recientemente sintetizadas ITQ-3 (ITE), 21 ITQ-12 (ITW) 22 e ITQ-32 (IHW), 11 las cuales han mostrado ser potencialmenteútiles en la separación de mezclas de hidrocarburos que presentan propiedades químicas y tamaños similares. Aún más sobresaliente, es su capaci-…”
Section: Zeolitas Y Su Papel En Procesos De Separaciónunclassified
“…147 Los procesos de separación basados en zeolitas intercambiadas se llevan a cabo a través de la formación de complejos de tipo π, los cuales se forman cuando iones de Cu o Ag, previamente adicionados a la estructura zeolíti-ca, interaccionan con las moléculas insaturadas, 148,149 mientras que en el caso de separaciones que involucran zeolitas puramente silíceas la separación se da por efectos de tamizado molecular. 20,21,141,150 En este capítulo se estudia la dinámica de la red cristalina y las consecuencias que el modelamiento de la flexibilidad de dicha red tendrá sobre la movilidad de las especies adsorbidas. Para este fin usaremos la técnica de Dinámica Molecular…”
Section: Términos No-enlazantesunclassified
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