A method and an apparatus for injection of nox reducing agent

F - Mech Eng,Light,Heat,Weapons – 23 – J

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

F23J 15/00 (2006.01) B01D 53/56 (2006.01) F23C 10/10 (2006.01) F23J 7/00 (2006.01)

Patent

CA 2264832

The present invention refers to an improved method and an improved apparatus for reducing the concentration of nitrogen oxides in flue gases produced by the combustion of carbonaceous fuel in combustion units having a furnace with a fluidized bed of solids therein. Hot gases produced within the furnace flow mainly upward within the furnace. Heat is recovered from the hot gases and hot solid material by heat transfer surfaces within the furnace. A nitrogen oxides reducing agent is introduced into the furnace through injection means integrally connected to the heat transfer surfaces, for keeping the temperature of the reducing agent at a sufficiently low temperature level at the introduction thereof and for efficiently mixing it with the mainly upward flowing hot gases.

La présente invention concerne un procédé et un dispositif améliorés de réduction de la teneur en oxydes d'azote des effluents gazeux dégagés par la combustion de combustibles carbonés dans des unités de combustion pourvues d'un four à lit de solides fluidifié. Les gaz chauds produits par le four remontent à l'intérieur du four. Des surfaces de transfert thermique garnissant l'intérieur du four permettent de récupérer de l'énergie thermique des gaz chauds et des matières solides chaudes. Le procédé consiste alors, au moyen d'un dispositif d'injection intégralement connecté aux surfaces de transfert thermique, à introduire dans le four un agent réducteur des oxydes d'azote, et ce, de façon à maintenir l'agent réducteur à une température suffisamment basse lors de son introduction, et à le mélanger efficacement aux gaz chauds remontant principalement vers le haut.

LandOfFree

Say what you really think

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

Rating

A method and an apparatus for injection of nox reducing agent does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with A method and an apparatus for injection of nox reducing agent, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A method and an apparatus for injection of nox reducing agent will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1888332

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