This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Effect of Ceramic Monolith Particulate Filters on Diesel Exhaust Odorant and Irritant Species
Annotation ability available
Sector:
Language:
English
Abstract
Ceramic monolith particulate filters were evaluated for reduction of odor and irritant species in diesel exhaust. Three types of diesel particulate filters (DPF's) were tested: high efficiency catalyzed and uncatalyzed, and mid efficiency uncatalyzed. Testing was done with a single cylinder CFR diesel test engine run under steady-state conditions at low, mid and high equivalence ratios. Exhaust was sampled immediately upstream and downstream of the DPF's and analyzed on liquid chromatographs. The odorant species analyzed were oxygenated hydrocarbons (oxygenates), measured using the DOAS methodology. The irritant species analyzed were Cl to C5 aldehydes, measured using a DNPH reagent method. The high efficiency catalyzed DPF reduced exhaust oxygenate concentrations about 30% at low and mid equivalence ratios, which was the only substantial oxygenate reduction seen. However, this corresponds to only a slight reduction in perceived diesel odor intensity, due to the logarithmic dependence of TIA (total intensity of aroma) on oxygenate concentration. None of the measured exhaust aldehydes were affected by the DPF's.
Recommended Content
| Technical Paper | DPF Acoustic Performance: An Evaluation of Various Substrate Materials and Soot Conditions |
| Technical Paper | Diesel Exhaust Odor |
| Technical Paper | Diesel Exhaust Offensive Effect – True Odor or Irritancy? |
Authors
Topic
Citation
Danis, A., Partridge, P., and Cernansky, N., "Effect of Ceramic Monolith Particulate Filters on Diesel Exhaust Odorant and Irritant Species," SAE Technical Paper 850011, 1985, https://doi.org/10.4271/850011.Also In
References
- Diesel Technology: Impacts of Diesel-Powered Light-Duty Vehicles National Academy Press Washington, DC 1982
- Howitt, J.S. Montierth, M.R. “Cellular Ceramic Diesel Particulate Filter” SAE Paper No. 810114 February 1981
- Cernansky, N.P. Savery, C.W. Suffet, T.H. Cohen, R.S. “Diesel Odor Sampling and Analysis Using the Diesel Odor Analysis System (DOAS)” SAE Paper No. 780223 1973
- Lipari, F. Swarin, S.J. “Determination of Formaldehyde and Other Aldehydes in Automobile Exhaust with an Improved 2,4-Dinitrophenylhydrazine Method” Journal of Chromatography 247 297 306 1982
- Agaram, J.R. Cernansky, N.P. “Fuel Effects on Diesel Odor from an IDI CFR Diesel Engine” presented at the 1981 Central States Section/Combustion Institute Meeting Warren, HI 23-24 March 1981