Abstract
Hydrocarbon adsorber is considered as a promising technology to reduce cold start HCs in automotive exhaust gas. In this study, three in-line adsorber systems were tried to reduce the cold start emission. To check the basic characteristics of adsorber converters, surface areas, TPD and TPA were examined after a hydrothermal aging. Also idle engine bench was used to find the adsorption and desorption capabilities of the adsorber systems at cold start. Finally a practicability of the adsorber systems for the LEV achievement was checked with FTP test on a 2.0 D M/T vehicle. The results of this study indicate that hydrocarbon adsorber system is one of the promising passive technologies to meet the ULEV regulation.
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Abbreviations
- BET:
-
Brunauer, Emmett, Teller
- CARB:
-
California Air Resources Board
- CCC:
-
Close-Coupled Catalyst
- cpsi:
-
Cell per square inch
- DOHC:
-
Double Over Head Cam
- EGR:
-
Exhaust Gas Recirculation
- EHC:
-
Electrically Heated Catalyst
- FID:
-
Flame Ionized Detector
- FTP:
-
Federal Test Procedure
- GC:
-
Gas Chromatography
- L:
-
liter in volume
- LEV:
-
Low Emission Vehicle
- M/T:
-
Manual Transmission
- MY:
-
Model Year
- min:
-
minute in time
- PM:
-
Precious Metal
- UCC:
-
Underbody Catalyst Converter
- ULEV:
-
Ultra Low Emission Vehicle
- SOHC:
-
Single Over Head Cam
- TPA:
-
Temperature Programmed Adsorption
- TPD:
-
Temperature Programmed Desorption
- TWC:
-
Three Way Catalyst
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Son, G.S., Yun, S.W., Kim, D.J. et al. A study of HC reduction with hydrocarbon adsorber systems. KSME International Journal 14, 1168–1177 (2000). https://doi.org/10.1007/BF03185071
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DOI: https://doi.org/10.1007/BF03185071