Effects of the residence time in four-bed pressure swing adsorption process

Se Il Yang; Ju Yong Park; Dae Ki Choi; Sung Hyun Kim

doi:10.1080/01496390902729122

Effects of the residence time in four-bed pressure swing adsorption process

Se Il Yang, Ju Yong Park, Dae Ki Choi, Sung Hyun Kim

Honorary professors

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

Hydrogen separation by the four-bed PSA process using layered beds of activated carbon and zeolite 5A was investigated experimentally and theoretically to recover high purity H₂ from steam methane reforming off-gas. The recovery increased with increasing the residence time at given product purity because of the contact time between the impurities and the adsorbents is increased. The difference of increasing the recovery became smaller with increasing the residence time and then the recovery was not increased after 43.6 seconds of the residence time. The minimum residence time exists to obtain the maximum recovery at desired product purity (99.999%{thorn}).

Original language	English
Pages (from-to)	1023-1044
Number of pages	22
Journal	Separation Science and Technology
Volume	44
Issue number	5
DOIs	https://doi.org/10.1080/01496390902729122
Publication status	Published - 2009 Jan

Keywords

Hydrogen
Pressure swing adsorption
Residence times

ASJC Scopus subject areas

Chemistry(all)
Chemical Engineering(all)
Process Chemistry and Technology
Filtration and Separation

Access to Document

10.1080/01496390902729122

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abstract = "Hydrogen separation by the four-bed PSA process using layered beds of activated carbon and zeolite 5A was investigated experimentally and theoretically to recover high purity H2 from steam methane reforming off-gas. The recovery increased with increasing the residence time at given product purity because of the contact time between the impurities and the adsorbents is increased. The difference of increasing the recovery became smaller with increasing the residence time and then the recovery was not increased after 43.6 seconds of the residence time. The minimum residence time exists to obtain the maximum recovery at desired product purity (99.999%{thorn}).",

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AU - Park, Ju Yong

AU - Choi, Dae Ki

AU - Kim, Sung Hyun

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N2 - Hydrogen separation by the four-bed PSA process using layered beds of activated carbon and zeolite 5A was investigated experimentally and theoretically to recover high purity H2 from steam methane reforming off-gas. The recovery increased with increasing the residence time at given product purity because of the contact time between the impurities and the adsorbents is increased. The difference of increasing the recovery became smaller with increasing the residence time and then the recovery was not increased after 43.6 seconds of the residence time. The minimum residence time exists to obtain the maximum recovery at desired product purity (99.999%{thorn}).

AB - Hydrogen separation by the four-bed PSA process using layered beds of activated carbon and zeolite 5A was investigated experimentally and theoretically to recover high purity H2 from steam methane reforming off-gas. The recovery increased with increasing the residence time at given product purity because of the contact time between the impurities and the adsorbents is increased. The difference of increasing the recovery became smaller with increasing the residence time and then the recovery was not increased after 43.6 seconds of the residence time. The minimum residence time exists to obtain the maximum recovery at desired product purity (99.999%{thorn}).

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KW - Residence times

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