Apparatus for removing solvents from air

Apparatus for removing solvents from air comprising a passage through which solvent laden air is arranged to flow, a plurality of absorption liquid distributor members spaced along and within the passage in the direction of air flow, each said member extending across said passage and having an extended surface area, and a plurality of spray nozzles for an absorption liquid;

• at least one of said spray nozzles being arranged upstream of each said member in the direction of air flow to spray absorption liquid in the direction of air flow into the respective member such that films of absorption liquid are formed within said members in intimate contact with the air flow whereby the solvent is absorbed by the absorption liquid, a multi chambered source container for absorption liquid, liquid conduit means connecting respective chambers of said source to supply respective spray nozzles, sump means in said passage and beneath each member for collecting absorption liquid and solvent solution by gravity flow from respective ones of said members and returning said solution to respective chambers of said source, wier means within the source container for causing a progressive flow of absorption liquid between the chambers of said source container, the direction of flow being such that absorption liquid from the most downstream of said nozzles in said passage flows toward absorption liquid from the most upstream of said nozzles in the direction of air flow.

Apparatus for removing solvents from air comprising a passage through which solvent laden air is arranged to flow, a plurality of absorption liquid distributor members spaced within and along the passage in the direction of air flow, each said member extending across said passage and having an extended surface area, and a plurality of spray nozzles for an absorption liquid;

• at least one of said spray nozzles being arranged upstream of each said member in the direction of air flow to spray absorption liquid in the direction of air flow into the respective member such that films of absorption liquid are formed within said members in intimate contact with the air flow whereby the solvent is absorbed by the absorption liquid, sump means formed within the passage and beneath each member for collecting by gravity flow the absorption liquid and solvent solution from each said member, and means connected in liquid flow relation with the sump means for feeding at least a portion of the collected solution from each said member to the spray nozzles, said means connected in liquid flow relation comprising a tank for containing the collected absorption fluid, a plurality of adjustable wiers within the tank and dividing the tank into a plurality of compartments, a plurality of input pipes equal in number to the number of distributor members, each input pipe connecting a compartment of the tank to a spray nozzle associated with a respective one of said distributor members whereby each compartment of the tank supplies absorption liquid to a spray nozzle associated with a different distributor member, and means connecting each of said sump means to a respective compartment of said tank.