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Johnson-Matthey - Catalysed Soot Filter (CSF)
FromJohnson Matthey
Remove over 99% of particulate matter. Have high performance at low precious metal loadings and low back pressure. Are optimised for specific systems and are durable against temperatures and poisons. Oxidise NO to provide favourable NO:NO2 ratios for passive filter regeneration and for downstream catalyst reactions. Can be coated onto a range of different filter substrate types.
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mobile emissions
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CRT
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exhauster system
The operating principle of the CDPF is shown here. CDPFs require higher exhaust gas temperatures for regeneration than CRT and CCRT systems.
CSF system performance
The emissions reduction performance of a CSF is similar to that for a CRT system.
Operating conditions
CSFs require higher exhaust temperatures than CRT systems if they are to regenerate passively.