| 摘要 |
Construction and operational costs of recovering the high-octane components of an isomerization raffinate product of a simulated moving bed adsorptive separation process units are reduced by employing a dividing wall column to perform the separation. The raffinate product stream is passed into the column at an intermediate point on the first side of the dividing wall, with the column delivering the low-octane raffinate components as a sidedraw from the opposite side of the dividing wall. A stream of higher octane components are removed both as an overhead stream and a bottoms stream. The sidedraw may be recycled to the isomerization zone.
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