Carbon dioxide absorbent requiring less regeneration energy

B - Operations – Transporting – 01 – D

Patent

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Details

B01D 53/14 (2006.01) B01D 53/62 (2006.01)

Patent

CA 2651888

Disclosed is an absorbent for eliminating carbon dioxide from a gas flow. Said absorbent comprises an aqueous solution of at least one amine and at least one amino carboxylic acid and/or amino sulfonic acid. Additionally using an amino carboxylic acid or amino sulfonic acid reduces the amount of energy required for regenerating the absorbent.

La présente invention concerne un agent d'absorption destiné à éliminer du dioxyde de carbone d'un flux de gaz, qui comprend une solution aqueuse d'au moins une amine et d'au moins un acide aminocarboxylique et/ou acide aminosulfonique. L'utilisation complémentaire d'un acide aminocarboxylique ou d'un acide aminosulfonique permet de limiter l'énergie nécessaire à la régénération de l'agent d'absorption.

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