| abstract |
The present invention relates to a process for producing isocyanates, whereby the exhaust stream provided for combustion is directed to an adsorber before being supplied to the exhaust stream combustion process, thereby removing the solvent, Comprising at least two adsorbers connected in parallel, alternately (i) exposed to at least one exhaust stream and (ii) regenerated with water vapor, wherein process step (i) During the process step (ii), a stream containing water and solvent is obtained and the solvent content is recycled to the isocyanate production process. . |