B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
23/369, 23/420
B01D 53/14 (2006.01) B01D 53/34 (2006.01) B01D 53/50 (2006.01) B01D 53/68 (2006.01) C10K 1/20 (2006.01)
Patent
CA 1261120
ABSTRACT OF THE DISCLOSURE The invention relates to a method and an arrangement for enabling a contaminated medium to be cleansed in a contact reactor by introducing thereinto a pulverulent absorption material capable of reacting with contaminants in the medium, the medium and the absorption material being mixed together in the contact reactor over a period of time in which contaminants react with the material, therewith to absorb on and react with individual particles in the pulverulent absorption material. The method includes the steps of (a) removing absorption material partly reacted with contaminants downstream of the contact reactor; (b) storing this removed absorption material for a pre-determined time duration in excess of 20 hours; (c) causing the contaminants to diffuse inwardly into respective individual particles during this storage time, thus to impart to the surfaces of the particles an increased ability to absorb further contaminants; and (d) by returning stored, previously used absorption material to the contact reactor as a pulverulent absorption material capable of reacting with the contaminants contained in the medium.
495557
Flakt Aktiebolag
Gowling Lafleur Henderson Llp
LandOfFree
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