High-purity simulated moving bed adsorptive separation apparatus

Details High-purity simulated moving bed adsorptive separation apparatus High-purity simulated moving bed adsorptive separation apparatus

1997-12-12

1999-12-21

Griffin, Walter D.

Chemical apparatus and process disinfecting, deodorizing, preser

Chemical reactor

Including heat exchanger for reaction chamber or reactants...

422114, 422115, 422142, B01J 804, G05D 700, F16K 3100, F16K 1700

Patent

active

060045183

ABSTRACT:
Improved product purity is provided in a simulated moving bed adsorptive separation apparatus by flushing the stagnant volume of the feed valve and the transfer line connecting the feed valve to the rest of the apparatus. The invention adds another line for delivering recycle fluid as the flush stream to an additional inlet port on the feed valve. The apparatus comprises a number of serially connected adsorbent-containing chambers. The chambers are linked together with valving necessary to simulate the continuous countercurrent flow of the adsorbent and liquid phases.

REFERENCES:
patent: 3268605 (1966-08-01), Boyd, Jr.
patent: 3706812 (1972-12-01), DeRosset et al.
patent: 4434051 (1984-02-01), Golem
patent: 5565104 (1996-10-01), Priegnitz
patent: 5635072 (1997-06-01), Moran
"Liquid Column Chromatography as a Predictive Tool for Continuous Countercurrent Adsorptive Separations," Ind. Eng. Chem. Process Des. Dev., vol. 15, No. 2, (1976), pp. 261-266.
"Performance of a Six-Port Simulated Moving-Bed Pilot Plant for Vapor-Phase Adsorption Separations," Separation Science and Technology, 27 (14), (1992), pp. 1889-1916.
"Preparative resolution of praziquantel enantiomers by simulated counter-current chromatography," Journal of Chromatography, 634 (1993), pp. 215-219.
"Optical resolution by simulated moving-bed adsorption technology," Journal of Chromatography, 590 (1992), pp. 113-117.

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