Taw qhia rau peb-txoj kev hloov catalytic
Peb txoj kev hloov pauv catalytic yog qhov tseem ceeb tshaj plaws off-board purification twj ntsia hauv cov pa tso tawm ntawm lub tsheb. Nws tuaj yeem hloov cov pa phem xws li CO, HC thiab NOx tawm ntawm tsheb tso pa tawm mus rau cov pa roj carbon dioxide, dej thiab nitrogen los ntawm kev tiv thaiv oxidation thiab txo qis. Cov. Thaum lub tshuab hluav taws xob kub siab dhau los ntawm cov khoom siv ua kom huv, tus neeg sawv cev huv rau hauv peb txoj kev hloov pauv catalytic yuav txhim kho cov dej num ntawm peb cov roj cua CO, HC thiab NOx, thiab ua rau nws raug rau qee yam oxidation-txo kev siv tshuaj, nyob rau hauv uas CO oxidized ntawm qhov kub kom dhau los Ua Xim, cov pa roj carbon dioxide tsis muaj tshuaj lom; HC cov tshuaj tiv thaiv yog oxidized rau dej (H20) thiab carbon dioxide ntawm qhov kub siab; NOx raug txo kom nitrogen thiab oxygen. Peb roj cua ua lub kem tsis zoo, ua kom lub tsheb tso pa kom huv.
Peb txoj kev hloov pauv catalytic yog qhov tseem ceeb tshaj plaws off-board purification twj ntsia hauv cov pa tso tawm ntawm lub tsheb. Nws tuaj yeem hloov cov pa roj phom sij xws li CO carbon monoxide, HC hydrocarbons thiab NOx nitrogen oxides tawm los ntawm lub tsheb tso pa mus rau hauv oxidation thiab txo los ntawm kev tiv thaiv oxidation thiab txo qis. Cov pa phem carbon dioxide, dej thiab nitrogen.
Txij li cov ntawv tsa tawm no tuaj yeem sib pauv hloov peb qho tseem ceeb hauv cov pa hauv lub cev mus rau hauv cov tshuaj tsis huv, nws hu ua ternary.