Method of scrubbing lower mass sulfides with a sulfide...

B - Operations – Transporting – 01 – D

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B01D 53/14 (2006.01) B01D 53/18 (2006.01) B01D 53/50 (2006.01) B01D 53/52 (2006.01) C01B 17/04 (2006.01) C01B 17/05 (2006.01)

Patent

CA 2434233

A method of scrubbing lower mass sulfides with a sulfide scrubbing medium capable of regeneration. The sequential order of gas flow through three vessels is altered. A first of the three vessels is maintained in a scrubbing mode, scrubbing to breakthrough sulphides from the gas that passes through it. A second of the three vessels is maintained in a conditioning mode. Sulfide scrubbing medium in the vessel removes any residual sulphides from the gas while being conditioned by such limited exposure to the sulphides. A third of the three vessels is maintained in a regeneration mode. Saturated sulfide scrubbing medium in the vessel removes excess oxygen from the gas while being regenerated by such exposure to oxygen.

L'invention concerne une méthode de lavage de sulfures de faible masse au moyen d'un milieu de lavage de sulfures capable de regénération. L'ordre séquentiel du débit de gaz à travers trois récipients est modifié. Un premier récipient parmi les trois est maintenu en mode de lavage, pour enlever les sulfures du gaz qui le traverse. Un deuxième récipient parmi les trois est maintenu en mode de conditionnement. Le milieu de lavage de sulfures dans le vaisseau retire tout sulfure résiduel du gas, tout en étant conditionné par une exposition limitée aux sulfures. Un troisième récipient parmi les trois est maintenu en mode de regénération. Le milieu de lavage de sulfures saturés dans le récipient retire l'oxygène excédentaire du gaz, tout en étant conditionné par une exposition à l'oxygène.

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