This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Chemical and Physical Characteristics of Organic Particulate Matter from Exhaust After-Treatment System of Euro 6 Diesel Engine Operating at Full Load
Technical Paper
2019-24-0053
ISSN: 0148-7191, e-ISSN: 2688-3627
This content contains downloadable datasets
Annotation ability available
Sector:
Language:
English
Abstract
The current legislation does not take into account the limitation of sub 23 nm particles from engine. Nevertheless, the Common Rail Diesel engine emits a large number of nanoparticle, solid and volatiles, that are very dangerous for human health. In this contest, the challenge of the “dieper EU project” is to apply advanced technologies for exhaust after-treatment to existing diesel engines and to optimize the characteristics of a new generation of engines with regards to emissions, fuel consumption and drivability.
Aim of the present paper is to provide useful information for the development of the after-treatment system that will have to fulfill Euro6 further steps. In order to characterize the chemical and physical nature of Particulate Matter emitted from Euro 6b Medium Duty diesel engine, the pollutants were collected and analyzed: from engine-out, downstream of the particulate filter (DPF), and at the exit of a selective catalytic reactor (SCR). An array of chemical, physical and spectroscopic techniques (Gas chromatography coupled with mass spectrometry (GC-MS), mobility analyzer, UV-visible absorption and fluorescence spectroscopy) was applied for characterizing the organic particulate matter (PM, constituted of polycyclic aromatic hydrocarbons (PAH), heavy aromatic compounds, soot) in the exhaust line. The engine was operated in full-load condition (100% of the accelerator pedal position, representing the best performance of the engine operation) at different engine speeds.
Results showed that the abetment efficiency of soot after DPF and SCR systems, at all engine speeds, is very high (around 90% or more), as evaluated gravimetrically and by mobility analyzer, which discriminates also among the different dimensional ranges of particles. The DPF is more efficient at collecting <23nm than >23nm particles whereas in the SCR system particles are subjected to reactions which seem to support an agglomeration of particles, with beneficial effect on the harmfulness to human health. For PAH the abatement efficiency is lower with respect to soot, but it increases at higher engine speeds, when the concentration is much higher.
Recommended Content
| Technical Paper | Catalytic Reduction of NOx and Diesel Exhaust |
| Technical Paper | Catalytic Reduction of NOx in Actual Diesel Engine Exhaust |
Authors
- Ezio Mancaruso - Istituto Motori-CNR
- Bianca Maria Vaglieco - Istituto Motori-CNR
- Antonio Tregrossi - Istituto Ricerche Sulla Combustion
- Carmela Russo - Istituto Ricerche Sulla Combustion
- Anna Ciajolo - Istituto Ricerche Sulla Combustion
- Barbara Apicella - Istituto Ricerche Sulla Combustion
- Wolfgang Gstrein - FPT Motorenforschung AG
- Konstantinos Priftis - FPT Motorenforschung AG
Topic
Citation
Mancaruso, E., Vaglieco, B., Gstrein, W., Priftis, K. et al., "Chemical and Physical Characteristics of Organic Particulate Matter from Exhaust After-Treatment System of Euro 6 Diesel Engine Operating at Full Load," SAE Technical Paper 2019-24-0053, 2019, https://doi.org/10.4271/2019-24-0053.Data Sets - Support Documents
| Title | Description | Download |
|---|---|---|
| Unnamed Dataset 1 |
Also In
References
- www.downtoten.com 2019
- www.sureal-23.cperi.certh.gr 2019
- www.pems4nano.eu 2019
- www.dieper-project.eu 2019
- World Health Organization 2013
- Giechaskiel , B. , Lahde , T. , Suarez-Bertoa , R. et al. Particle Number Measurements in the European Legislation and Future JRC Activities Combustion Engines. 174 3 3 16 2018 10.19206/CE-2018-301
- EPA 1979
- Ciajolo , A. , Barbella , R. , Tregrossi , A. , and Bonfanti , L. Spectroscopic and Compositional Signatures of PAH-Loaded Mixtures in the Soot Inception Region of a Premixed Ethylene Flame Proc. Comb. Inst. 27 1481 1487 1998
- Apicella , B. , Mancaruso , E. , Russo , C. , Tregrossi , A. , Oliano , M. M. , Ciajolo , A. , and Vaglieco , B. M. Effect of After-Treatment Systems on Organic Particulate Matter Emissions in Diesel Engine Exhaust Proceeding of the Mediterranean Combustion Symposium MCS11 Tenerife, Spain June 16-20 2019
- Berlman , I. Handbook of Florescence Spectra of Aromatic Molecules Elsevier 1971
- Tregrossi , A. , Apicella , B. , Ciajolo , A. , and Russo , C. Fast Analysis of PAH in Complex Organic Carbon Mixtures by Reconstruction of UV-Visible Spectra Chem. Eng. Trans. 57 1447 1452 2017
- Kittelson , D. B. Engines and Nanoparticles: A Review J. Aerosol Sci 29 5/6 575 588 1998
- Mancaruso , E. , Merola , S. S. , and Vaglieco , B. M. Study of the Multi-Injection Combustion Process in a Transparent Direct Injection Common Rail Diesel Engine by Means of Optical Techniques International Journal of Engine Research 9 6 483 498 2008 10.1243/14680874JER01308
- Amanatidis , S. , Ntziachristos , L. , Giechaskiel , B. , Bergmann , A. et al. Impact of Selective Catalytic Reduction on Exhaust Particle Formation over Excess Ammonia Events Environ. Sci. Technol. 48 19 11527 11534 2014 10.1021/es502895v
- Czerwinski , J. , Zimmerli , Y. , Mayer , A. , Lemaire , J. et al. Investigations of SDPF -Diesel Particle Filter with SCR Coating for HD-Applications SAE Technical Paper 2015-01-1023 2015 10.4271/2015-01-1023