| 摘要 |
A process is proposed for the distillation or reactive distillation of a mixture that includes at least one toxic component, the process being carried out in a column containing a structured packing, having at least one packing layer ( 1 ) having a lower end ( 2 ) and an upper end ( 3 ), the packing layer having an internal geometry varying over its height, in such a manner that in the distillation or reactive distillation, in a first, lower region ( 6 ) of the packing layer ( 1 ) a bubbling layer having a predominantly disperse gas phase can be established and simultaneously in a second, upper region ( 7 ) of the packing layer ( 1 ) a film flow having a predominantly continuous gas phase can be established. |
