NOx is removed from gas by redn. with at. N in a plasma jet at 50-1000 M and 5000-6000 K. The NOx-contg. gas is injected into the plasma jet at 30 m/s resulting in the reaction NO + N = N2 + O. A high redn. degree of NOx is attained with no salt wastes. Thus, a plasma jet was introduced through a nozzle-shaped plasmotron anode into a reactor and mixed with N contg. 0.9-5.2 vol.% NO. The flow rates of the at. N and the N-NO mixt. were 4.9 m3/h and 500 L/h, resp. The residual NO content in the emerging gas was 190 and 4500 ppm for initial NO contents 0.9 and 5.2 vol.%, resp. [on SciFinder (R)]
5998221
CAN 89:168299
59-2
Air Pollution and Industrial Hygiene
Patent
written in German.
19780713
17778-88-0 Role: RCT (Reactant), RACT (Reactant or reagent) (in redn. of nitrogen oxide in plasma jet); 11104-93-1 Role: REM (Removal or disposal), PROC (Process) (removal of, from waste gases, redn. with atm. nitrogen in plasma jet in)
Alternative title(s) : (ol) Werkwijze voor het reduceren van stikstofoxyden.
Patent number | Country code | Kind code | Date issued |
IT1092707 | IT | B | 1985-07-12 |
GB1544397 | GB | A | 1979-04-19 |
LU78817 | LU | A1 | 1978-09-18 |
FR2376818 | FR | A1 | 1978-08-04 |
JPS5385771 | JP | A | 1978-07-28 |
DE2700435 | DE | A1 | 1978-07-13 |
NL7800225 | NL | A | 1978-07-11 |
BE862754 | BE | A | 1978-07-10 |
DK6878 | DK | A | 1978-07-08 |