Adsorptive separation product recovery by fractional distillation
US6395951B1 · kind B1 · utility
17Cited by
8References
10Claims
0Family size
Assignee
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Key dates
| Filing date | Sep 26, 2000 |
| Grant date | May 28, 2002 |
| Priority date | — |
| Expiry date | Sep 26, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G25/12
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Construction and operational costs of recovering the extract or 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 or extract stream is passed into the column at an intermediate point on the first side of the dividing wall, with the column delivering the adsorptive separation product as a sidedraw from the opposite side of the dividing wall. A stream of co-adsorbed impurity is removed as an overhead stream and desorbent is recovered as a net bottoms stream.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.