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Countercurrent exchange

About: Countercurrent exchange is a research topic. Over the lifetime, 2255 publications have been published within this topic receiving 28687 citations. The topic is also known as: Countercurrent exchange.


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Journal ArticleDOI
E. M. Lobanov1
TL;DR: In this paper, the structure of a saturation jump in the one-dimensional countercurrent capillary imbibition of a wetting phase (water) into a semi-infinite porous medium is considered.
Abstract: Consideration has been given to the structure of a saturation jump in the one-dimensional countercurrent capillary imbibition of a wetting phase (water) into a semiinfinite porous medium. An equation having a geometric interpretation has been derived, and boundary conditions have been determined for a stabilized zone due to the nonequilibrium of the phase distribution. Calculation of the saturation-jump and phase-pressure profiles has been performed for a sandstone sample.

1 citations

Journal ArticleDOI
TL;DR: In this paper, the absorption of a gas in liquid filled porous particles in gas-solid reactors was studied both theoretically and experimentally. And the results of the simulations for the removal of H2S from a gas stream also containing CO2 showed that a very selective absorption process can be obtained.
Abstract: The absorption of a gas in liquid filled porous particles in gas-solid reactors was studied both theoretically and experimentally. In the theoretical study a micro mode!, describing mass transport accompanied with reaction inside the particles, was implemented in the macro balance for several asymptotic operation modes. The theoretical study showed that the gas separation can be carried out very efficiently with the liquid filled porous particles, especially for the countercurrent mode of operation. The results of the simulations for the removal of H2S from a gas stream also containing CO2 showed that a very selective absorption process can be obtained. For these kind of selective absorption processes the simulations showed that the residence time of the particles is a crucial parameter In the experimental part of this contribution the absorption of CO2 in porous y-alumina particles filled with water or 2M aqueous solutions of tertiary - or primary alkanolamines was investigated. Experiments were carried ...

1 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
202358
2022115
202127
202041
201947
201849