ENVIRONMENT|deterioration of the environment|pollution · INDUSTRY|chemistry
- sceitheadh amóinia Reference Faomhadh an téarma seo mar chuid de Thionscadal Lex
- ga
- Context 'Laghdú roghnaitheach ocsaídí nítrigine le hamóinia nó úiré agus catalaíoch ann. Tá an teicníc bunaithe ar dhí-ocsaídiú NOX go nítrigin i scair chatalaíoch trí imoibriú le hamóinia (tuaslagán uiscí de ghnáth) ag teocht oibríochtúil optamach thart ar 200-450 °C. Go ginearálta, instealltar amóinia mar thuaslagán uiscí; is féidir an fhoinse amóinia a bheith ina amóinia ainhidriúil nó tuaslagán úiré. Féadfar roinnt sraitheanna den chatalaíoch a chur i bhfeidhm. Baintear laghdú NOX níos airde amach trí dhromchla catalaíoch níos mó a úsáid, a shuiteáiltear mar shraith amháin nó níos mó. Meascann DRC “sceite” SNCR le SCR iartheachtach lena laghdaítear an sceitheadh amóinia ó SNCR.' Reference "Cinneadh Cur Chun Feidhme (AE) 2022/2427 lena mbunaítear conclúidí maidir leis na teicnící is fearr atá ar fáil (BAT), faoi Threoir 2010/75/AE ó Pharlaimint na hEorpa agus ón gComhairle maidir le hastaíochtaí tionsclaíocha, le haghaidh córais choiteanna bhainistíochta agus chóireála dramhgháis in earnáil na gceimiceán (a bhfuil fógra tugtha ina leith faoi dhoiciméad C(2022) 8788), CELEX:32022D2427/GA"
- ammonia slip
- en
- Definition emissions of unreacted ammonia that result from incomplete reaction between NOx and the reagent Reference "COM-Terminology Coordination, based on:US Environmental Protection Agency. Air Pollution Control Technology Fact Sheet. EPA-452/F-03-032, http://www.epa.gov/ttn/catc/dir1/fscr.pdf [28.11.2013]"
- Comment "When ammonia is used as reagent, there is a quantity of ammonia that does not participate to the reaction and escapes into the environment. Urea is used in SNCR and SCR reactions to reduce the NOx pollutants in exhaust gases from combustion from Diesel, dual fuel, and lean-burn natural gas engines. The BlueTec system, for example, injects water-based urea solution into the exhaust system. The ammonia produced by the hydrolysis of the urea reacts with the nitrogen oxide emissions and is converted into nitrogen and water within the catalytic converter.See also: TigerOptics. Selective Catalytic Reduction – Ammonia Slip. APPLICATION NOTE ENV#4, Version 1.0, Publication date 21st August 2013, http://tigeroptics.com/TA/photo/view.php?gal=users;site,cms,files&s=orig&f=ENV_4_SCR_ammonia_slip.pdf [28.11.2013]"