Patent ID: 8841503
Filing Date: 2014-09-23
Classification: B01D,C07C

Abstract:
1. A process for the adsorption-separation of a feed stream into an extract product, containing a defined ratio of extract to impurities, from a raffinate product, in which a head-flush purge fluid is removed from a process vessel containing an adsorption bed and at least one equalization chamber, comprising: I. passing an internal process fluid into the equalization chamber in a process vessel having at least one rounded head, II. passing a head-flush fluid into the equalization chamber, III. withdrawing a head-flush purge from the equalization chamber comprising varying ratios of the extract and impurities to a withdrawal pump, IV. measuring the contained ratio of extract to impurities in the purge, and V. distributing the purge through a valving system to: VI. repeating step V according to the determination of the weight ratio of extract to impurities in the purge.