Results 261 to 270 of about 819,966 (301)

Mass transfer coefficients in fluidized systems

Chemistry and Technology of Fuels and Oils, 1967
1. During the adsorption of nitrogen oxides by the ASM grade silica gel, the increase in relative saturation is accompanied by a rapid fall in the total mass transfer coefficient caused by the increased diffusion resistance of the adsorbate in the pores of the adsorbent. 2.
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SURFACE MASS TRANSFER COEFFICIENTS FOR WOOD

Drying Technology, 1993
ABSTRACT Experimentally determined mass transfer coefficients for wood surfaces are often much lower than theoretically and experimentally determined coefficients for other surfaces. An investigation of this is made by comparing mass transfer coefficients for water and saturated non-wood surfaces, with coefficients measured for wood surfaces.
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Mass transfer coefficients in liquid–liquid extraction

Chemical Engineering and Processing: Process Intensification, 2001
Abstract The paper concerns with mass transfer in liquid–liquid extraction, considering that the experimental determination of the individual mass transfer coefficients during liquid–liquid extraction is still considered to be a difficult problem. In this work, the liquid–liquid extraction using a ternary system, water–acetone–carbon tetrachloride ...
Radu Z Tudose, Gabriela Apreotesei
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External Mass Transfer Coefficients for Monolith Catalysts

Industrial & Engineering Chemistry Research, 1996
Monolith catalyst reactors are used for controlling emissions of automotive and industrial pollutants.
Mohit Uberoi, Carmo J. Pereira
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Mass transfer coefficients across ion‐exchange membranes

The Canadian Journal of Chemical Engineering, 1964
AbstractA study of the interchange of hydrogen ion with various cations across polystyrene sulphonic acid ion‐exchange membranes has been made. The effects of membrane exchange capacity and crosslinking, solution concentration, temperature, counter ion valence and size on mass transfer rates were determined.
A. S. Tombalakian, C. Y. Yeh, W. F. Graydon   +2 more
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Volumetric mass transfer coefficient in stirred reactors

Chemical Engineering & Technology, 1988
AbstractIt is shown that the volumetric mass transfer coefficients, presented recently by Schmitz et al. [1] for viscous solutions of carboxymethyl cellulose (CMC) in aqueous sodium sulphite, are considerably underestimated as a result of unjustified neglect of the oxygen back pressure during oxygen absorption. Schmitz et. al.
Václav Linek, Václav Vacek
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Calculation of Photon Mass Energy-Transfer and Mass Energy-Absorption Coefficients

Radiation Research, 1993
Calculations of mass energy-transfer and mass energy-absorption coefficients for photon energies from 1 keV to 100 MeV have been developed, based on a re-examination of the processes involved after the initial photon interaction. The probabilities for the initial interaction are from the current photon interaction cross-section database at the National
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Rapid measurement of indoor mass-transfer coefficients

Atmospheric Environment, 2003
Abstract Indoor air pollutant concentrations can be influenced by how rapidly species are transported to and from surfaces. Consequently, a greater understanding of indoor transport phenomena to surfaces improves estimates of human exposure to indoor air pollutants.
Glenn C. Morrison, Zhao Ping, Deborah J. Wiseman, Maneerat Ongwandee, Hong Chang, Julie Portman, Shekhar Regmi   +6 more
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Mass-Transfer Coefficients in Dense Binary Mixtures

Theoretical Foundations of Chemical Engineering, 2005
A modified elementary kinetic theory of gases is generalized to arbitrary densities of mixtures (from the gaseous to the solid state). Derived expressions for the mass-transfer coefficients are based on the lattice gas model, which is applicable to all the three aggregation states. For a rarefied gas, the expression for the mutual diffusion coefficient
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Mass transfer coefficients determination from linear gradient elution experiments

Journal of Chromatography A, 2015
A procedure to estimate mass transfer coefficients in linear gradient elution chromatography is presented and validated by comparison with experimental data. Mass transfer coefficients are traditionally estimated experimentally through the van Deemter plot, which represents the HETP as a function of the fluid velocity.
David, Pfister, Massimo, Morbidelli
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