| 摘要 |
A method and an apparatus (7') for separating 1,2,4-Trimethylbenzene by fractional distillation of a mixture (31) that contains C9 or C9+ aromatic hydrocarbons, and possibly hydrocarbons with less nine nine carbon atoms. In an aspect of the invention, a first distillation step and a second distillation step are carried out in respective distillation chambers (75, 75') defined by a cylindrical vertical container 501 and by an inner partition wall (85) of the container. |
