US 12,263,499 B2
Nozzle lance, combustion plant and method for exhaust gas treatment
Peter Frühauf, Gladbeck (DE); and Julian Essler, Gladbeck (DE)
Assigned to RS RITTEL GMBH, Gladbeck (DE)
Appl. No. 17/262,064
Filed by RS RITTEL GMBH, Gladbeck (DE)
PCT Filed Jul. 22, 2019, PCT No. PCT/EP2019/069665
§ 371(c)(1), (2) Date Jan. 21, 2021,
PCT Pub. No. WO2020/025381, PCT Pub. Date Feb. 6, 2020.
Claims priority of application No. 10 2018 006 131.1 (DE), filed on Aug. 3, 2018.
Prior Publication US 2021/0308701 A1, Oct. 7, 2021
Int. Cl. B05B 7/04 (2006.01); B01D 53/50 (2006.01); B01D 53/58 (2006.01); B01D 53/60 (2006.01); B01J 19/00 (2006.01); B05B 12/12 (2006.01); F01N 3/20 (2006.01); F23J 15/00 (2006.01)
CPC B05B 7/0475 (2013.01) [B01D 53/504 (2013.01); B01D 53/58 (2013.01); B01J 19/0013 (2013.01); B05B 12/12 (2013.01); F01N 3/206 (2013.01); F23J 15/003 (2013.01); B01D 53/60 (2013.01); F01N 3/2066 (2013.01); F01N 3/208 (2013.01); F01N 2610/02 (2013.01); F01N 2900/1404 (2013.01); F01N 2900/1411 (2013.01); F01N 2900/1811 (2013.01); F01N 2900/1812 (2013.01); F01N 2900/1818 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A method for exhaust gas treatment in a combustion plant comprising:
injecting a fluid with an active substance by pressurized gas through several nozzles or nozzle lances into a common exhaust gas chamber of the combustion plant, wherein the fluid is a fluid mixture of an admixing fluid and an active fluid with the active substance, wherein a temperature and/or a pollutant concentration is measured in the exhaust gas chamber and a quantity or concentration of the active substance in the atomized fluid is adjusted or controlled as a function of the measured temperature and/or pollutant concentration,
wherein in a temperature range of the exhaust gas between 850° C. and 1150° C. the quantity or concentration of the active substance in the atomized fluid is varied steplessly,
wherein a first temperature T1 and a second temperature T2 are in the temperature range between 850° C. and 1150° C., T2>T1 and the quantity or concentration of the active substance is monotonic increasing in a first temperature range TB1 between the first temperature T1 and the second temperature T2, and
wherein a third temperature T3 is in the temperature range between 850° C. and 1150° C., T3>T2, and the quantity or concentration of the active substance is constant in a second temperature range TB2 between the second temperature T2 and the third temperature T3.