Publication

Separation of binary mixtures by thermostatic sweeping gas membrane distillation I. Theory and simulations

Urs von Stockar, Ian William Marison
2002
Journal Articles

Abstract

A math. model describing a novel sweeping gas membrane distn. (SGMD) configuration is presented and the sepn. of two volatile components from binary mixts. by this membrane process is theor. investigated. SGMD configuration is modified by using a thermostated sweeping gas in order to enhance the driving forces decrease along the module. A Stefan-Maxwell-based model that includes vapor-liq. equil. and heat and mass transfer relations is used. This model that takes into account temp. and concn. polarization effects as well as temp. and concn. variation along the module length is employed to predict the flux and selectivity under the relevant operating conditions. Finally, a theor. evaluation of this particular configuration with respect to direct contact MD configuration is discussed. [on SciFinder (R)]

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https://infoscience.epfl.ch/entities/publication/f8054964-46ff-47e4-9fdb-e4041b94d85a

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Urs von Stockar, Ian William Marison
2002
Journal Articles

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/f8054964-46ff-47e4-9fdb-e4041b94d85a

About this result

Related concepts (18)

Membrane

A membrane is a selective barrier; it allows some things to pass through but stops others. Such things may be molecules, ions, or other small particles. Membranes can be generally classified into synthetic membranes and biological membranes. Biological membranes include cell membranes (outer coverings of cells or organelles that allow passage of certain constituents); nuclear membranes, which cover a cell nucleus; and tissue membranes, such as mucosae and serosae.

Membrane technology

Membrane technology encompasses the scientific processes used in the construction and application of membranes. Membranes are used to facilitate the transport or rejection of substances between mediums, and the mechanical separation of gas and liquid streams. In the simplest case, filtration is achieved when the pores of the membrane are smaller than the diameter of the undesired substance, such as a harmful microorganism.

Synthetic membrane

An artificial membrane, or synthetic membrane, is a synthetically created membrane which is usually intended for separation purposes in laboratory or in industry. Synthetic membranes have been successfully used for small and large-scale industrial processes since the middle of twentieth century. A wide variety of synthetic membranes is known. They can be produced from organic materials such as polymers and liquids, as well as inorganic materials. The most of commercially utilized synthetic membranes in separation industry are made of polymeric structures.

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Separation of binary mixtures by thermostatic sweeping gas membrane distillation I. Theory and simulations

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