Separation of mono‐ and dibranched hydrocarbons on silicalite

Jolimaître, Elsa; Ragil, K.; Tayakout‐Fayolle, Mélaz; Jallut, Christian

doi:10.1002/aic.690480910

Cited by 39 publications

(48 citation statements)

References 10 publications

(6 reference statements)

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“…Isotherms of (a) methane and (b) 2-methylbutane in MFI at various temperatures. Experimental data are taken from Sun et al, 36 Choudhary et al, 37 and Jolimaitre et al 30,31 Figure 9. Isotherms of branched alkanes (a) 2-methylpentane and (b) 3-methylpentane in MFI at various temperatures.…”

Section: B Extension To Mixtures In Mfimentioning

confidence: 50%

United Atom Force Field for Alkanes in Nanoporous Materials

et al. 2004

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A novel united atom force field affords accurate and quantitative reproduction of the adsorption properties of linear and branched alkanes in nanoporous framework structures. The force field was generated by adjusting the parameters so as to faithfully reproduce the experimentally determined isotherms (particularly the inflection points) on MFI-type zeolite over a wide range of pressures and temperatures. It reproduces extremely well the Henry coefficients, heats of adsorption, preexponential factors, entropies of adsorption, and maximum loading. It is shown that the extension of the force field from MFI to other nanoporous framework topologies is successful, that it affords the prediction of topology-specific adsorption properties, and that it can be an effective tool to resolve the many discrepancies among experimental data sets.

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Section: B Extension To Mixtures In Mfimentioning

confidence: 50%

United Atom Force Field for Alkanes in Nanoporous Materials

et al. 2004

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“…Zeolites, silica gels, and activated carbons are used primarily as sorbents to remove pollutants because of their good surface characteristics [2][3][4]. Up to the present, the use of zeolites for the removal of pollutants has not been fully explored.…”

Section: Introductionsupporting

confidence: 43%

Dynamic determination of the concentration of volatile alcohols in a fixed bed of zeolite 13X by FT-IR

Chung

Yang

et al. 2006

Journal of Hazardous Materials

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“…Adsorption based separation process are widely used in the industry for separation of several close boiling point hydrocarbon mixtures during the past three decades [1][2][3]. Zeolite molecular sieves have been employed as a major adsorbent material in many industrial separation processes for separation of various organic mixtures.…”

Section: Introductionsupporting

confidence: 42%

Fixed-Bed Adsorption Separation Of Xylene Isomers over SiO2/Silicallite-1 Core-Shell Adsorbents

Khan¹,

Rajendran²,

Lai³

2013

Chem. Eng. Res. Bull.

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Abstract:SiO 2 /Silicalite-1 core-shell material has been demonstrated as potential shape selective adsorbent in gas phase separation of p-xylene from a mixture of p/o-xylene isomers. The core-shell composite comprised of large silica core and thin polycrystalline silicalite-1 shell which was synthesized via a self-assembly of silicalite-1 nanocrystals on core silica surface followed by a secondary seeded growth method. The core materials, SiO 2 used in this study has mesoporosity with an average pore diameter of 60Å and hence offers no shape selectivity for xylene isomers. However, the shell, silicalite-1 contains rigid pore structures and preferentially adsorbs p-xylene from their isomers mixtures. A series of adsorption fixed bed breakthrough adsorption/desorption experiment was performed to obtain the equilibrium isotherms and adsorption isotherm parameters of xylene isomers. The equilibrium isotherms of xylene isomers follow the Langmuir's model. A chromatographic adsorption model has been used to describe the fixed-bed breakthrough profiles of xylene isomers. The model has successfully predicted the responses of the binary mixtures of p/o-xylene isomers. The SiO 2 /silicalite-1 core-shell adsorbents have shown para-selectivity as high as 15.

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Separation of mono‐ and dibranched hydrocarbons on silicalite

Cited by 39 publications

References 10 publications

United Atom Force Field for Alkanes in Nanoporous Materials

United Atom Force Field for Alkanes in Nanoporous Materials

Dynamic determination of the concentration of volatile alcohols in a fixed bed of zeolite 13X by FT-IR

Fixed-Bed Adsorption Separation Of Xylene Isomers over SiO2/Silicallite-1 Core-Shell Adsorbents

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