Method and device for entrained-flow sulfation of flue gas...

B - Operations – Transporting – 01 – D

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

B01D 53/68 (2006.01) F23G 5/48 (2006.01)

Patent

CA 2705043

The invention relates to a method for entrained-flow sulfation of flue gas constituents of a flue gas (9) containing oxygen in combustion systems having at least one combustion chamber. The aim of the invention is to develop a method for a practically complete entrained-flow sulfation of sulfatable flue gas constituents, thus allowing the formation of flue dust containing chloride to be minimized while reducing the use of sulfur oxides. Said aim is attained in that, after passing through an exhaust gas burnout zone, the flue gas constituents are conducted through a reaction chamber (22) in which the flue gas reaches a reaction temperature between 700 and 900°C over a dwell time of 4 to 20 s, wherein the sulfatable flue gas constituents are transitioned (24) while flowing through into solid ash particles containing sulfate with the SO2/SO3 present in the exhaust gas and the halide concentration in the flue ash is reduced.

Procédé de sulfatation en lit entraîné de constituants d'un gaz de fumée (9) à teneur en oxygène dans des installations de combustion pourvues d'au moins une chambre de combustion. L'invention veut développer un procédé de sulfatation en lit entraîné quasiment intégrale de composants de gaz de fumée pouvant être sulfatés, et minimiser ainsi la formation de cendres chlorurées avec une utilisation réduite d'oxydes de soufre. À cet effet, selon l'invention, les constituants de gaz de fumée sont, après avoir balayé la zone de combustion des gaz d'échappement, dirigés à travers une chambre de réaction (22) dans laquelle le gaz de fumée prend, sur un temps de séjour compris entre 4 et 20 s, une température de réaction comprise entre 700 et 900 °C, sachant que les composants de gaz de fumée pouvant être sulfatés sont, lors du balayage, transformés par le SO2/SO3 présent dans les gaz d'échappement en particules de cendres solides sulfatées (24), et que la concentration en halogénures des cendres volantes est réduite.

LandOfFree

Say what you really think

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

Rating

Method and device for entrained-flow sulfation of flue gas... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and device for entrained-flow sulfation of flue gas..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and device for entrained-flow sulfation of flue gas... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1913794

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