Abstract: A method for separating impurities from process exhaust air is provided and includes the steps of passing a process exhaust air through a separating device comprising a separation unit, regenerating the separating device by passing a regeneration stream therethrough, where outer lateral surfaces of the separation unit are continuously loaded by the process exhaust air and the regeneration stream, dividing the regeneration stream passing through the separating device during regeneration into a first partial stream having an impurity concentration less than a first predetermined limit, and a second partial stream having an impurity concentration equal to or greater than a second predetermined limit, where the second predetermined limit is equal to or greater than the first predetermined limit, returning the first partial stream generated during regeneration to the separating device and directing the second partial stream generated during regeneration to a cleaning device.

Abstract: A method for separating organic solvents from solvent-containing process exhaust air, where the process exhaust air is directed through a separation zone of a separating device, and the separating device is regenerated by passing a regeneration stream through a regeneration zone of the separating device. The regeneration stream passing through the separating device is divided into a first partial stream having an impurity concentration less than a first predetermined limit, and a second partial stream having an impurity concentration equal or greater than a second predetermined limit, by a divider, where the second predetermined limit is equal to or greater than the first predetermined limit, to return the first partial stream generated during regeneration to the separating device and direct the second partial stream generated during regeneration to a cleaning device.

Abstract: In a method for separating organic solvents from solvent-containing process exhaust air, the process exhaust air is directed through a separation zone of a separating device, and the separating device is regenerated by passing a regeneration stream through a regeneration zone of the separating device. The regeneration stream passing through the separating device during regeneration is divided into a first partial stream having an impurity concentration less than a first predetermined limit, and a second partial stream having an impurity concentration equal or greater than a second predetermined limit, by means of a dividing means, wherein the second predetermined limit is equal to or greater than the first predetermined limit, to return the first partial stream generated during regeneration to the separating device and direct the second partial stream generated during regeneration to a cleaning device.

Abstract: In a method for separating organic solvents from solvent-containing process exhaust air, the process exhaust air is directed through a separation zone of a separating device, and the separating device is regenerated by passing a regeneration stream through a regeneration zone of the separating device. The regeneration stream passing through the separating device during regeneration is divided into a first partial stream having an impurity concentration less than a first predetermined limit, and a second partial stream having an impurity concentration equal or greater than a second predetermined limit, by means of a dividing means, wherein the second predetermined limit is equal to or greater than the first predetermined limit, to return the first partial stream generated during regeneration to the separating device and direct the second partial stream generated during regeneration to a cleaning device.