Process and apparatus for simulated moving bed separation comprising bypass lines in every other bed and with controlled flushing flow rates during injections and withdrawals
US8123951B2 · kind B2 · utility
1Cited by
7References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 11, 2011 |
| Grant date | Feb 28, 2012 |
| Priority date | — |
| Expiry date | Feb 11, 2031 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C7/12
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process for separating a feed F by simulated moving bed adsorption in a SMB device comprises external bypass lines Li/i+1 which directly connect two successive plates, Pi, Pi+1, the index “i” being either even or (exclusive of the foregoing) odd, along the whole length of the column, allowing said plates to be flushed, in which each of the bypass lines Li/i+1 comprises automated means for regulating the flow rate in the bypass lines, the bypass lines in certain cases being subject to a flushing flow during injection or withdrawal operations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.