Our DOC/SCR substrate completely meets the requirement of Euro4 emission standard. Coated with different catalyst on the surface, it is widely used for DOC/SCR system to purify the exhaust gas from diesel engine. Because the diesel engine has bigger displacement than gasoline engine, so the diameter of DOC/SCR substrate is normally bigger than 120mm.
1.Good thermal property: low thermal expansion, high thermal shock resistance
and high durability;
2.Good coating property: high and stable water absorption, making good
absorption on catalyst;
3.Good heating property: small bulk density, heated to the working temperature
of catalyst very fast.
4.Good specific surface area: high CPSI and thin wall thickness, possessing
lower back pressure but bigger specific surface area.
Common used sizes
Heating rate comparison between wall thickness 8mil and 5mil of DOC/SCR substrate (reference for coating process)
Properties comparison between wall thickness 8mil and 5mil of DOC/SCR substrate
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