Cleaning exhaust gases from combustion installations

Details Cleaning exhaust gases from combustion installations Cleaning exhaust gases from combustion installations

1993-02-19

1995-07-11

Lander, Ferris

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Carbon dioxide or hydrogen sulfide component

42324409, 423235, B01J 800, C01B 2100

Patent

active

054318939

ABSTRACT:
In a process for cleaning the exhaust gases from combustion installations, a dilute urea solution prepared in a reagent tank (20) is introduced into the hot exhaust gas flow (30) of differing concentrations and is finely sprayed in the direction of the exhaust gas flow. After decomposition of the urea in a pyrolysation channel (14), the exhaust gas flow (30) is homogeneously mixed in-line by a mixer located in a mixing channel (16). In a subsequent in-line reaction channel (18), the reducible exhaust gas constituents are converted into non-toxic gases in at least one selective reduction catalyst which does not contain zeolite (36), then, dependent on the installation, the oxidizable exhaust gas components are converted into non-toxic gases without reagent in at least one oxidation catalyst (38) to produce a virtually complete reaction. A dual substance nozzle appliance (26) opening into the pyrolysation channel (14) comprises a reversing valve (88) for the working and blowing out position, a casing tube (24) for the compressed air, located in the area of the exhaust gas flow ( 30), a urea conductor carried at a distance in the casing tube (24) and a nozzle for fine spraying of the dilute urea solution.

REFERENCES:
patent: 3599427 (1971-08-01), Jones
patent: 3801696 (1974-04-01), Mark
patent: 4946659 (1990-08-01), Held et al.
patent: 4992249 (1991-02-01), Bowers
patent: 5120695 (1992-06-01), Blumrich et al.
patent: 5262138 (1993-11-01), Young
patent: 5281403 (1994-01-01), Jones

Affiliated with

Also associated with

Rating

Cleaning exhaust gases from combustion installations does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Cleaning exhaust gases from combustion installations, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cleaning exhaust gases from combustion installations will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-501722