Absorbent, co2 or h2s reducing apparatus, and co2 or h2s...

B - Operations – Transporting – 01 – D

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B01D 53/62 (2006.01) B01D 53/14 (2006.01) B01D 53/52 (2006.01) B01D 53/77 (2006.01)

Patent

CA 2692154

An absorbing liquid for absorbing the CO2 or H2S contained in a discharge gas discharged from, e.g., power generation facilities in a thermal power station or the like. It contains three or more amine compounds selected among linear or cyclic amine compounds each having a primary amino group and linear or cyclic amine compounds each having a secondary amino group. By the synergistic effect of the combination of these, the rate of absorbing CO2 or H2S is improved. The CO2 contained in a slight amount in a large amount of a gas discharged from a boiler can be efficiently absorbed.

Un liquide d'absorption pour absorber du CO2 ou du H2S contenu dans un gaz de décharge provenant, par exemple, d'installation de production d'énergie dans une centrale thermique ou dans une installation similaire. Le liquide décrit dans cette invention contient au moins trois composés amine choisis parmi des composés amine cycliques ou linaires présentant chacun un groupe amino primaire ou parmi des composés amine cycliques ou linéaires présentant chacun un groupe amino secondaire. Grâce à l'effet de synergie développé par la combinaison de ces composés, la vitesse d'absorption du CO2 ou du H2S est amélioré. Le CO2 contenu en infime quantité dans une grande quantité de gaz déchargé d'une chaudière peut être efficacement absorbé.

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