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Chemical and Spectroscopic Characterization of SOF and Soot from a Euro-4 Diesel Engine Fueled by Model Fuels
Technical Paper
2011-01-2098
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
This work regards the study of the effect of the fuel properties on the diesel engine emissions of particulate separated in soluble organic fraction (SOF) and soot. A Euro-4 engine was used operating at two engine conditions: 1500 rpm speed − 8% of maximum load and 2300 rpm − 13%. Model hydrocarbon fuels containing 100% of n-alkanes and iso-alkanes were used for studying the effect of cetane number. The effect of fuel composition on soot and SOF emissions was studied at a fixed cetane number (52) by using six fuels formulated with 90 vol% of model alkanes and iso-alkanes and 10 vol% of different components as alkylbenzenes, naphthenes (decaline), diaromatics (methylnaphthalene), fatty acid methyl esters (FAME) and highly paraffinic refinery streams (Fischer-Tropsch GtL and high-pressure Hydro cracking). Gas chromatography-Mass spectrometry (GC-MS), UV-visible spectroscopy and Size Exclusion Chromatography (SEC) were used for studying the effect of fuel properties on the composition and structure of particulate (SOF and soot) emissions. It was found that a low cetane number promoted the emission of SOF, in particular at low engine speeds. In this condition a high content of oxygenated species, derived from the partial oxidation of the fuel, was detected in the SOF. On the other hand, high cetane number fuels and a high engine speed produced higher amounts of soot and lower emissions of SOF. The latter was characterized by a high content of aliphatic species mostly derived from unburnt fuel hydrocarbons. Among the different fuel components, naphthalene showed to increase SOF and soot emissions with respect to the paraffinic base fuel; moreover both SOF and soot exhibited a high presence of oxygenated aromatic species.
Independently on the cetane number and fuel composition the SEC analysis of soot showed a three-mode particle size distribution with the main mode peaked at 110 nm and minor peaks at 10 nm and 7 nm. The UV-visible spectrum of the 7-nm peak soot revealed the presence of oxygenated aromatic functionalities whereas the 110-nm and 10-nm peak soot have the typical broad spectra of aromatic/graphitic carbon particles.
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Florio, S., Pellegrini, L., Alf\af, M., Ciajolo, A. et al., "Chemical and Spectroscopic Characterization of SOF and Soot from a Euro-4 Diesel Engine Fueled by Model Fuels," SAE Technical Paper 2011-01-2098, 2011, https://doi.org/10.4271/2011-01-2098.Also In
References
- Vaaraslahti, K. Ristimaki, J. Virtanen, A. Keskinen, J. Giechaskiel, B. Solla, A. Effect of Oxidation Catalysts on Diesel Soot Particles Environ. Sci. Technol. 40 4776 4781 2006
- Farrauto, R. J. Voss, K. E. Monolithic diesel oxidation catalysts Appl. Catal. B 10 29 51 1996
- Hansen, K. F. Bak, F., E Andersen, M. Bejder, H. Autrup, H. The influence of an oxidation catalytic converter on the chemical and biological characteristics of diesel exhaust emissions SAE Technical Paper No. 940241 1994
- Manni, M. Pedicillo, a. An Engine Test to Assess the Effect of Fuels and Lubricating Oils on Soot Loading of Diesel Particulate Filters SAE Technical Paper No. 2009-01-1871 June 2009
- Rose, D. Boger, T. Different Approaches to Soot estimation as Key Requirement for DPF Applications SAE Technical Paper No. 2009-01-1262 April 2009
- Chiatti, G. Chiavola, O. Falcucci, G. Soot Morphology Effects on DPF Performance SAE Technical Paper No. 2009-01-1279 April 2009
- Fang, H. L. Lance, M. J. Influence of Soot Surface Changes on DPF Regeneration SAE Technical Paper No. 2004-01-3043 October 2004
- Uitz, R. cracknel, R. Jansma, H. Makkee, M. Impact of Diesel Fuel Composition on Soot oxidation Characteristics SAE Technical Paper No. 2009-01-0286 April 2009
- Kawano, D. Senda, J. Kawakami, K. Shimada, A. Fujimoto, H. Fuel Design Concept for Low emission in Engine Systems 2nd Report: Analysis of Combustion Characteristics for the Mixed Fuels SAE Technical Paper No. 2001-01-0202 March 2001
- Khalek, I.A. et al. Particle emissions from 2007 HD on-highway Diesel engines during active regeneration of Catalyzed DPF 13th ETH Conference on Combustion Generated Nanoparticles Zurich 22 24 June 2009
- Duran, A. Carmona, M. Lucas De, A. Lapuerta, M. Characterization of Soluble Organic Fraction in Dpm: Optimization of the Extraction Method SAE Technical Paper No. 1999-01-3532 October 1999
- Montajir, R. M. Kusaka, T. Bamba, Y. Adachi, M. A New Concept for Real-Time Measurement of Particulate Matter (Soot and SOF) SAE Technical Paper No. 2005-01-3605 November 2005
- Besch, M. C. et al. Investigation of Morphology and Volatility of Ultrafine Diesel PM using Atomic Force Microscopy 13th ETH Conference on Combustion Generated Nanoparticles Zurich 22 24 June 2009
- Adam, T. Simultaneous real-time analysis of gas phase and particulate phase of heavy duty (HD) vehicle exhaust 14th ETH Conference on Combustion Generated Nanoparticles Zurich 1 4 August 2010
- Mehring, M. Investigation of diesel soot reactivities with condensable and corrosive gases in a new TG-FTIR system 14th ETH Conference on Combustion Generated Nanoparticles Zurich 1 4 August 2010
- Andrews, G. E. Ishaq, R. B. Farrar-Khan, J. R. Shen, Y. Williams, P, T. The Influence of Speciated Diesel Fuel Composition on Speciated Particulates SOF Emissions SAE Technical Paper No. 980527 February 1998
- Narushima, T. Morishima, A. Moriwaki, H. Kusaka, J. Diasho, Y. Experimental and Numerical Studies on Soot formation in Fuel Rich Mixture SAE Technical Paper No. 2003-01-1850 May 2003
- Yamada, H. Goto, Y. Formation Process of Soot precursors in a Laminar Flow Reactor SAE Technical Paper No. 2007-01-0061 January 2007
- Herod, A.A. Lazaro, M.-J. Suelves, I. Dubau, C. Richaud, R. Shearman, J. Card, J. Jones, A. R. Domin, M. Kandiyoti, R. Size Exclusion Chromatography of Soots and Coal-Derived Materials with 1-Methyl-2-pyrrolidinone as Eluent: Observations on High Molecular Mass Material Energy & Fuels 14 1009 1020 2000
- Apicella, B. Ciajolo, A. Barbella, R. Tregrossi, A. Morgan, T. J. Herod, A. A. Kandiyoti, R. Size Exclusion Chromatography of Particulate Produced in Fuel-Rich Combustion of Different Fuels Energy & Fuels 17 565 570 2003
- Sgro, L. A. Minutolo, P. Basile, G. D'Alessio, A. UV-visible spectroscopy of organic carbon particulate sampled from ethylene/air flames Chemosphere 42 671 680 2001
- Apicella, B. Alfè, M. Barbella, R. Tregrossi, A. Ciajolo, A. Aromatic structure of carbonaceous materials and soot inferred by spectroscopic analysis Carbon 42 1583 1589 2004
- Hori, S. Narusawa, K. Fuel Composition Effects on SOF and PAH Exhaust Emissions from DI Diesel Engines SAE Technical Paper No. 980507 February 1998
- Nishiumi, R. Yasuda, A. Tsukasaki, Y. Tanaka, T. Effects of Cetane Number and Distillation Characteristics of Paraffinic Diesel fuels on PM Emission from a DI Diesel Engine SAE Technical Paper No. 2004-01-2960 October 2004
- Boulter, P.G. Latham, S. Emission factors 2009: Report 5 - A review of the effects of fuel properties on road vehicle emissions TRL Limited Published Public Report n. PPR358 June 2009
- Ryan, T. W. III Erwin, J. Mason, R.L. Moulton, D. S. Relationships Between Fuel Properties and Composition and Diesel Engine Combustion Performance and Emissions SAE Paper 941018
- Ogawa, T. Nakakita, K. Yamamoto, M. Okada, M. Fujimoto, Y. Fuel Effects on Particulate Emissions from D.I. Engine. Relationships among Diesel Fuel, Exhaust Gas and Particulates SAE Technical Paper No. 971605 May 1997
- Camarsa, M. et al. “Impact of EPEFE Data on the European Auto-Oil Process” SAE Paper 961076
- Kono, N. et al “Effects of Driving Conditions and Fuel Properties on Diesel Emissions” SAE Paper 2005-01-3835
- Henein, N.A. Patterson, D.J. “Emissions from Combustion Engines and Their Control” Ann Arbor Science Publishers Inc. 1972
- Faiz, A. Weaver, C. S. Walsh, M. P. Air pollution from motor vehicles: standards and technologies for controlling emissions World Bank Publications 1996
- Westbrook, C.K. Pitz, W. J. Curran, H. J. Chemical Kinetic Modelling Study of the Effects of Oxygenated Hydrocarbons on Soot Emissions from Diesel Engines J. Phys. Chem. A 2006 110 6912 2006
- Guido, C. Beatrice, C. Di Iorio, S. Fraioli, V. et al. “Alternative Diesel Fuels Effects on Combustion and Emissions of an Euro5 Automotive Diesel Engine,” SAE Int. J. Fuels Lubr. 3 1 107 132 2010 10.4271/2010-01-0472
- Takatori, Y. Mandokoro, Y. Akihama, K. Nakakita, K. Tsukasaki, Y. Iguchi, S. Yeh, L.I. Dean, A.M. “Effect of hydrocarbon molecular structure on diesel exhaust emissions part 2: effect of branched and ring structures of paraffins on benzene and soot formation” SAE Paper 982495
- Nakakita, K. Ban, H. Takasu, S. Hotta, Y. Inagaki, K. Weissman, W. Farrell, J.T. “Effect of hydrocarbon molecular structure in diesel fuel on in-cylinder soot formation and exhaust emissions SAE Paper 2003-01-1914
- Gudzinowicz, B.J. Gudzinowicz, M.J. Martin, H. Fundamentals of Integrated GC-MS Part II: Mass Spectrometry” Chromatographic Science Series, 7 Marcel Dekker Inc. New York and Basel 0-8247-6430-7 1976
- Roessler, D.M. Faxvog, F.R. Stevenson, R. Smith, G.W. Optical Properties and Morphology of Particulate Carbon Variation with Air/Fuel Ratio Particulate Carbon Formation during Combustion Siegla, D.C. Smith, G.W. Plenum New York, NY 1981
- Kittelson, D.B. Watts, W.F. Johnson, J. “Diesel Aerosol Sampling Methodology - CRC E-43: Final Report” University of Minnesota Report for the Coordinating Research Council 19 August 2002
- Caroca, J.C. Millo, F. Vezza, D. Vlachos, T. De Filippo, A. Bensaid, s. Russo, N. Fino, D. Detailed investigation on soot particle size distribution during DPF re generation, using standard and bio-diesel fuels Ind. Eng. Chem. Res. 50 2650 2658 2011
- Matis, U. Mohr, M. Kaegi, R. Bertola, A. Boulouchos, K. “Influence of Diesel Engine Combustion Parameters on Primary Soot Particle Diameter” Environ. Sci. Technol. 39 1887 1892 2005