B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
B01D 53/14 (2006.01)
Patent
CA 2741248
The invention relates to a method and a solvent combination for the gas scrubbing of industrial gases, said method being used for the gas separation of acid gases, in particular carbon dioxide and hydrogen sulphide. The claimed solvent combina-tion comprises a solution of amines in water, which contains ammonia for improving the CO2 absorption. Any amines with one or two substituents fall into the groups of primary and secondary amines. Piperazine and piperazine derivatives are particularly suita-ble as components of the claimed solvent combination.
L'invention concerne un procédé utilisant une combinaison de solvants pour le lavage de gaz techniques, en vue de séparer les gaz des gaz acides, en particulier du dioxyde de carbone et de l'acide sulfhydrique. La combinaison de solvants selon l'invention comprend une solution d'amines dans l'eau, qui renferme de l'ammoniac en vue d'améliorer l'absorption de CO2. Dans le groupe des amines primaires et secondaires, on mentionne toutes les amines voulues présentant un ou deux substituants. On mentionne comme constituant particulièrement approprié de la combinaison de solvants selon l'invention, la pipérazine et des dérivés de la pipérazine.
Borden Ladner Gervais Llp
Uhde Gmbh
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