Catalytic Converter And Temperature; Purification Of Catalytic Converter; Chemical Reaction Formula - SSANGYONG 2004 Rexton 2.7XDi Workshop Manual

Catalytic converter and temperature

Catalytic converter has the normal function of purification at a
range of the temperature. Because it has a weak point of de-
creasing of the purification rate in the condition of continuous
high temperature, it should keep the temperature range of 400
to 500°C for normal condition. HC purification rate becomes
better according to the increase of temperature in the normal
range of temperature. CO purification rate becomes the best
near the temperature of 450°C, and NOx does so near the
temperature of 400 to 500°C.

Purification of catalytic converter

• Adhesion of soluble organic fraction (SOF) below 180°C
• Purification of soluble organic fraction (SOF) over 180°C

Chemical reaction formula

• SOF(HC) + O2 ............... O2 + H2O
• 2CO + O2 ...................... 2CO2
• 2C2H6 + 7O2 ................. 4CO2 + 6H2O
• Oxygen adheres to catalytic material : below 180°C
EXHAUST SYSTEM
DI ENG SM - 2004.4
Aldehide
Aromatic HC
Catalytic Material
Catalytic Material
EFFECTIVE DATE
AFFECTED VIN
DI04-39
Y220_04041
Y220_04042
Y220_04043
CHANGED BY