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Liquid-phase diffusivity of benzene within mesoporous materials measured by a laser Raman technique
Title: | Liquid-phase diffusivity of benzene within mesoporous materials measured by a laser Raman technique |
Authors: | Nakasaka, Yuta Browse this author →KAKEN DB | Tago, Teruoki Browse this author →KAKEN DB | Yano, Kazuhisa Browse this author →KAKEN DB | Masuda, Takao Browse this author →KAKEN DB |
Keywords: | Intracrystalline diffusivity | Mesoporous silica | Liquid phase | Benzene–Cyclohexane solution | Raman spectroscopy |
Issue Date: | 1-Jan-2010 |
Publisher: | Elsevier |
Journal Title: | Chemical Engineering Science |
Volume: | 65 |
Issue: | 1 |
Start Page: | 226 |
End Page: | 231 |
Publisher DOI: | 10.1016/j.ces.2009.06.022 |
Abstract: | The intracrystalline diffusivities of benzene within a series of porous materials in the liquid phase (cyclohexane was used as solvent) were measured by a constant volumetric method using Raman spectroscopy at a temperature range from 323 to 393 K. Silicalite-1, mono-dispersed mesoporous silica spheres (MMSS), Silica Gel, γ-Al2O3, and SiO2-Al2O3 were used as adsorbents. The intracrystalline diffusivity was calculated by parameter fitting using theoretical equations and the experimental transient change of benzene concentrations with time in response to the adsorption. The intracrystalline diffusivities of benzene within mesoporous silicas were almost the same as that within the micropore of silicalite-1, though the pore diameters of silicalite-1 and mesoporous silicas were different from each other. It is considered that the pore walls as well as the solvent molecules of cyclohexane affect the diffusion of benzene molecules in the meso pore region. |
Type: | article (author version) |
URI: | http://hdl.handle.net/2115/48285 |
Appears in Collections: | 工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 中坂 佑太
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