B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
B01D 53/12 (2006.01) B01D 53/72 (2006.01) B01D 53/83 (2006.01) B01D 53/96 (2006.01) B01J 8/28 (2006.01)
Patent
CA 2192646
A method of cleaning ventilation air that is contaminated with at least two organic solvents, wherein the ventilation air is caused to pass through fluidized beds that contain material capable of adsorbing the solvents and thereafter capable of releasing the organic substances present in the solvents by desorption. The ventilation air is caused to pass first through at least one first fluidized bed (2, 3) that contains an adsorbent material particularly suited for adsorption of one of the organic substances, and is then passed through at least one second fluidized bed (4, 5) that contains an adsorbent material particularly suited for adsorption of the other of said organic substances. The adsorbents are then tapped off separately from the first and the second beds for regeneration of the adsorbents by desorption of the organic substances, whereafter the absorbents are returned to their respective beds. The invention also relates to an arrangement for use when carrying out the method.
La présente invention concerne un procédé de nettoyage d'air de ventilation contaminé par au moins deux solvants organiques. Le procédé consiste à faire passer l'air de ventilation à travers des lits fluidisés contenant une substance capable d'adsorber les solvants, et de libérer par désorption les substances organiques présentes dans les solvants. L'air de ventilation traverse au moins un premier lit fluidisé (2, 3) contenant une substance adsorbante convenant particulièrement à l'adsorption de l'une des substances organiques, puis au moins un second lit fluidisé (4, 5) contenant une substance adsorbante convenant particulièrement à l'adsorption de l'autre desdites substances organiques. Par la suite, pour régénérer les adsorbants par désorption des substances organiques, lesdits adsorbants sont enlevés séparément des premier et des second lits fluidisés, puis renvoyés sur leurs lits fluidisés respectifs. L'invention concerne également un dispositif utilisable pour la mise en oeuvre de ce procédé.
Chematur Engineering Ab
Kirby Eades Gale Baker
LandOfFree
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