Search Results - "Ruthven, Douglas M"

The Nature of Surface Barriers on Nanoporous Solids Explored by Microimaging of Transient Guest Distributions by Hibbe, Florian, Chmelik, Christian, Heinke, Lars, Pramanik, Sanhita, Li, Jing, Ruthven, Douglas M, Tzoulaki, Despina, Kärger, Jörg

“…Nanoporous solids are attractive materials for energetically efficient and environmentally friendly catalytic and adsorption separation processes. Although the…”
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Uphill diffusion and overshooting in the adsorption of binary mixtures in nanoporous solids by Lauerer, Alexander, Binder, Tomas, Chmelik, Christian, Miersemann, Erich, Haase, Jürgen, Ruthven, Douglas M., Kärger, Jörg

“…Under certain conditions, during binary mixture adsorption in nanoporous hosts, the concentration of one component may temporarily exceed its equilibrium…”
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Adsorptive separation of light olefins from paraffins by Ruthven, Douglas M., Reyes, Sebastian C.

“…Equilibrium and kinetic data for the sorption of light olefins and paraffins are reviewed. The equilibrium selectivities of cation rich zeolites are about 12…”
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The Effect of Water on the Adsorption of CO2 and C3H8 on Type X Zeolites by Brandani, Federico, Ruthven, Douglas M

“…The effect of small amounts of water, in regard to inhibiting the adsorption of carbon dioxide (CO2), on several different cationic forms of zeolite X has been…”
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Diffusion in type A zeolites: New insights from old data by Ruthven, Douglas M.

“…Structure of zeolite A showing exchangeable cation sites. [Display omitted] ► Sorption rates in type A zeolites vary widely depending on sample pre-treatment…”
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Analysis and Interpretation of Zero Length Column Response Curves by Mangano, Enzo, Brandani, Stefano, Ruthven, Douglas M.

“…To obtain reliable diffusivity data it is essential that the zero length columns (ZLC) response curve is measured under conditions of kinetic control. For…”
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Surface barriers and symmetry of adsorption and desorption processes by Sastre, German, Kärger, Jörg, Ruthven, Douglas M.

“…Adsorption and desorption of hydrocarbons in a realistic model (2496 atoms) of ZSM-5 zeolite (MFI), including an external surface and a reservoir for…”
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Molecular Dynamics Study of Diffusion and Surface Permeation of Benzene in Silicalite by Sastre, German, Kärger, Jörg, Ruthven, Douglas M

“…Molecular dynamics simulations have been carried out to determine the uptake and release rates for benzene in an idealized crystal of silicalite (the pure…”
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Past Progress and Future Challenges in Adsorption Research by Ruthven, Douglas M

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A review of common practices in gravimetric and volumetric adsorption kinetic experiments by Wang, Jin-Yu, Mangano, Enzo, Brandani, Stefano, Ruthven, Douglas M.

“…The availability of commercial gravimetric and volumetric systems for the measurement of adsorption equilibrium has seen also a growth of the use of these…”
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Diffusion Path Reversibility Confirms Symmetry of Surface Barriers by Sastre, German, Kärger, Jörg, Ruthven, Douglas M

“…The mass transfer resistance encountered by guest molecules entering or leaving a microporous host material (the “surface barrier”) is often comparable with or…”
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A rigorous criterion for approach to cyclic steady-state in PSA simulations by Effendy, Surya, Farooq, Shamsuzzaman, Ruthven, Douglas M.

“…An algorithm based on rigorous mathematical analysis is presented for determining the cyclic steady-state (CSS) in the simulation of Pressure Swing Adsorption…”
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CO2 capture: Value functions, separative work and process economics by Ruthven, Douglas M.

“…The relationship between the thermodynamic minimum work of separation and the “separative work” from the theory of staged separation processes is examined…”
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Diffusion in nanopores: inspecting the grounds by Kärger, Jörg, Ruthven, Douglas M., Valiullin, Rustem

“…This paper provides a general overview of the phenomenon of guest diffusion in nanoporous materials. It introduces the different types of diffusion measurement…”
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Transport in Nanoporous Materials Including MOFs: The Applicability of Fick's Laws by Titze, Tobias, Lauerer, Alexander, Heinke, Lars, Chmelik, Christian, Zimmermann, Nils E. R., Keil, Frerich J., Ruthven, Douglas M., Kärger, Jörg

“…Diffusion in nanoporous host–guest systems is often considered to be too complicated to comply with such “simple” relationships as Fick’s first and second law…”
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Sorption kinetics: measurement of surface resistance by Ruthven, Douglas M., Kärger, Jörg, Brandani, Stefano, Mangano, Enzo

“…The problem of measuring sorption kinetics in microporous adsorbents and distinguishing experimentally between surface resistance and internal diffusion is…”
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ZLC diffusion measurements: Combined effect of surface resistance and internal diffusion by Ruthven, Douglas M., Vidoni, Adam

“…The mathematical model for a zero length column (ZLC) system has been extended to the practically important situation in which the sorption kinetics are…”
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Comment on “On Asymmetric Surface Barriers in MFI Zeolites Revealed by Frequency Response” by Ruthven, Douglas M, Kaerger, Joerg

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Synergies between adsorption and energy conversion technologies by Keefer, Bowie G., Ruthven, Douglas M.

“…The analogy between heat uptake in a thermal regenerator and selective uptake of gas components in an adsorbent bed has inspired development of alternative…”
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Diffusion of C2H6 and C2H4 in DDR Zeolite by Vidoni, Adam, Ruthven, Douglas M

“…Diffusion of ethane and ethylene in large crystals of DDR clathrisil (the pure silica analogue of ZSM-58) has been studied in detail by the zero length column…”
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