Scrubber for reactive gases

B - Operations – Transporting – 01 – D

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Details

B01D 53/52 (2006.01) B01D 53/58 (2006.01) B01D 53/68 (2006.01) G01N 30/02 (2006.01)

Patent

CA 2698114

Scrubber media for reactive gases, that can include but are not necessarily limited to hydrogen chloride (HCl), hydrogen sulfide (H2S), hydrogen fluoride (HF), and ammonia (NH3), can include reactive particles, potentially as small as nano-scale, that can optionally be suspended on macro-scale carrier particles. Reactive gases can be converted to non-volatile compounds by being passed through a bed of such scrubber media. Such scrubber media can be used to remove reactive gases from gas mixtures. Potential applications include differential absorption spectroscopy, air pollutant emission controls, and the like. Methods of preparing scrubber media are also described.

La présente invention a trait à des milieux épurateurs pour gaz réactifs, parmi lesquels on peut citer, non exclusivement, le chlorure d'hydrogène (HCl), le sulfure d'hydrogène (H2S), le fluorure d'hydrogène (HF) et le gaz ammoniac (NH3), les milieux épurateurs pouvant comprendre des particules réactives, potentiellement de taille nanométrique, qui peuvent éventuellement être suspendues à des macro-particules vecteurs. Le passage des gaz réactifs par un lit composé desdits milieux épurateurs permet de les convertir en composés non volatiles. Lesdits milieux épurateurs peuvent être utilisés pour éliminer les gaz réactifs de mélanges gazeux. Parmi les applications potentielles, on peut citer la spectroscopie d'absorption différentielle, la lutte contre les émissions polluantes dans l'air et analogue. L'invention concerne également des procédés de préparation de milieux épurateurs.

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