Patent ID: 6610125
Filing Date: 2003-08-26
Classification: B01D,G01N

Abstract:
A method of increasing the relative concentration of an organophosphonate in a gas stream comprising the steps of:passing a first gas stream through an adsorbent, the first gas stream containing molecules of the organophosphonate mixed with molecules of at least one non-target molecule, to adsorb the molecules of the organophosphonate and the molecules of the non-target molecule on the adsorbent; and then passing a second gas stream containing molecules of a chemical displacer through the adsorbent, so that the molecules of the chemical displacer adsorb on the adsorbent to selectively displace molecules of the organophosphonate from the adsorbent while leaving molecules of the non-target molecule adsorbed on the adsorbent, the chemical displacement causing the displaced molecules of the organophosphonate to enter the second gas stream.