| 摘要 |
<p>A processing cycle for separating C8 aromatics (5) (mixtures of ortho-, para-, meta-xylene and ethylbenzene) is disclosed, in which a first subdivision (1) of the mixture is performed into two streams (6,12) respectively constituted of: para-xylene and ethylbenzene the first one (6); meta- and ortho-xylene the second one (12), followed by a separation of the first stream (6) by rectification (2), during which ethylbenzene (7) within specifications is obtained as the overhead fraction, with the second stream (12) being also sent to a separation by rectification (4), with ortho-xylene (14) within specifications being obtained as the bottom fraction: the possible content of C9 species can be furthermore removed by subsequent distillation. <IMAGE></p> |
