A - Human Necessities – 23 – F
Patent
A - Human Necessities
23
F
A23F 5/20 (2006.01) B01D 15/00 (2006.01)
Patent
CA 2047500
A b s t r a c t : The invention relates to a process and an apparatus for decaffeinating liquid, especially aqueous raw coffee ex- tracts. The caffeine selective adsorbing agent is pre- ferably a molecular sieve, especially zeolite. This ad- sorbing agent is preferably arranged as a fixed bed in a column through which the raw coffee extract can be passed for decaffeination and through which subsequently at least one regenerating substance for regenerating the adsorbing agent for re-use can be passed. Preferably a plurality of such columns is inter-connected to a closed circuit, so that in a cyclic succession these columns can be connected to the adsorption process or the regeneration process. The columns can remain stationary in this process. The adsorbed caffeine is desorbed and, as a by-product, can be used for other purposes.
Bunselmeyer Dieter
Culmsee Ortwin
Heilmann Wolfgang
Bunselmeyer Dieter
Culmsee Ortwin
Heilmann Wolfgang
Jacobs Suchard Ag
Ridout & Maybee Llp
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