diesel catalyst

Lub catalytic converter yog ib qho cuab yeej siv los txo cov emission ntawm cov khoom tsis zoo rau hauv cov pa roj thiab tseem siv rau hauv cov cav tov diesel.

Tau ntau tshaj 20 xyoo, cov tuam txhab tsheb tau siv cov catalytic converters nyob rau hauv lub tshuab tso pa ntawm roj av cav. Txij li thaum lub catalytic converter yog ib qho cuab yeej siv los txo cov emission ntawm cov khoom tsis zoo rau hauv cov pa roj, nws kuj tseem siv rau hauv cov cav tov diesel.

Lub cav diesel emissions kua qaub, hydrocarbons, sulfur dioxide, nitrogen oxides thiab hlau: calcium, magnesium, hlau thiab zinc vim lub hauv paus ntsiab lus ntawm kev ua haujlwm thiab cov roj siv. Kev siv dav siv oxidation catalyst tuaj yeem txo cov sulfur dioxide emissions los ntawm 98 feem pua, hydrocarbon thiab carbon monoxide emissions ntau tshaj 80 feem pua.

Tus qauv Euro IV tau pib siv txij li xyoo 2005. Hauv cov tshuab hluav taws xob ntawm cov tshuab hluav taws xob, kev teeb tsa ntawm cov catalysts thiab cov lim dej tshwj xeeb yuav yog qhov tsim nyog, tej zaum yuav ntxiv cov catalyst ntxiv rau neutralize nitrogen oxides.