Pressure swing adsorption method with additional elution

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United States of America Patent

PATENT NO 9919258
APP PUB NO 20160236134A1
SERIAL NO

15027208

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Abstract

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A pressure swing adsorption process for producing a gas stream enriched in a compound X from a feed gas stream is provided. The process includes at least 2 adsorbers, with each adsorber being subjected to a pressure cycle having a high pressure and a low pressure. The process includes adsorption at the high pressure with production of the gas stream enriched in compound X; then depressurization; then elution at the low pressure; and finally repressurization to the high pressure. The elution gas is made up fractions of gas stream resulting from the depressurization of an adsorber and the gas stream enriched in compound X. The pressure cycle has a phase time corresponding to the duration of a pressure cycle divided by the number of adsorbers and the fraction of the gas stream enriched in compound X is determined as a function of the phase time.

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Patent Owner(s)

  • L'AIR LIQUIDE, SOCIETE ANONYME POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Lemaire, Yann-Pierrick Verrières, FR 6 7
Monereau, Christian Montpellier, FR 97 1138
Renou, Elise Paris, FR 10 37
Toulemonde, Louis Douai, FR 6 10

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