Process for removing nitrogen oxides from gases

B - Operations – Transporting – 01 – D

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

B01D 53/56 (2006.01)

Patent

CA 2240121

The invention relates to a process for removing nitrogen oxides from a fluid, the fluid being the feed air or a product or product mixture or a process fluid of an air separation plant. According to the invention, the nitrogen oxides are removed by chemisorption on metal oxides. The metal oxides are preferably formed from metals of the 6th to 8th subgroup, manganese dioxide (MnO2) being particularly preferred as the metal oxide. The process can comprise one or more reactor beds, which are preferably operated at 10 to 40°C and are regenerated with nitrogen at a temperature from 130 to 170°C. The process can be used for the recovery of gases of extreme purity, for example for the manufacture of semiconductors.

L'invention porte sur un procédé pour éliminer les oxydes d'azote dans un fluide; ce dernier est l'air d'alimentation ou un produit ou mélange de produits ou encore un fluide de procédé d'une usine de fractionnement de l'air. Selon l'invention, les oxydes d'azote sont éliminés par chimisorption sur les oxydes métalliques. Ceux-ci sont formés de préférence à partir de métaux des sous-groupes 6 à 8, et on privilégie tout particulièrement le dioxyde de manganèse (MnO2) comme oxyde métallique. Le procédé peut comporter un ou plusieurs lits de réacteur, fonctionnant de préférence à 10-40 degrés C, et régénérés avec de l'azote à une température de 130-170 degrés C. Le procédé peut servir à récupérer des gaz d'une pureté extrême, utiles par exemple pour la fabrication de semi-conducteurs.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Process for removing nitrogen oxides from gases does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for removing nitrogen oxides from gases, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for removing nitrogen oxides from gases will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1441602

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.