Verfahren zur Rückgewinnung von in einem Adsorber adsorbierten Lösungsmitteln

摘要

The invention relates to a process for the recovery of solvents or other substances, which are condensable, adsorbed in an adsorber (3). The adsorber (3) is first heated to a temperature which is below the decomposition temperature of the solvent, the adsorber space (2) is then sealed off from the surroundings and a high vacuum is applied to the adsorber space (2), as a result of which the solvent is desorbed. For some of the time that this high vacuum is applied, the temperature of the adsorber (3) is brought to a temperature which is above the decomposition temperature of the solvent. Despite this, no decomposition occurs under the conditions mentioned, but the high temperature permits an almost complete desorption of the solvent. Finally, the desorbed solvent is withdrawn from the adsorber space (2) and condensed.