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Fuel, Lubricant and Additive Effects on Combustion Chamber Deposits
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Abstract
There is continuing interest in understanding how fuel, fuel additives, and lubricants contribute to combustion chamber deposit (CCD) weights and compositions in order to better anticipate the impact of CCD on exhaust emissions and engine performance. For this reason, we have characterized a range of CCDs from bench engines and vehicles using solid state 13C Nuclear Magnetic Resonance Spectroscopy (NMR) and X-ray Photoelectron Spectroscopy (XPS). Differences in CCD composition and structure were related to the fuel, fuel additives, and engine oil used in the test. CCDs derived from most fuels run in modern engines are predominantly organic. The fraction of aromatic carbon ranges between 24 and 74% depending on fuels and test conditions over a test length of 1,000 to 20,000 miles. These aromatic carbons exist in predominantly 1 and 2 ring structures that are independent of the amount of aromatic carbon in the CCD. These 1 and 2 ring aromatic carbon units are even present in CCD produced from non-aromatic fuels and non-aromatic lubes. The major structural difference among CCD appears in the average aliphatic carbon chain length, which decreases with increasing amount of aromatic carbon in CCD. In general, intake valve detergent packages decreased the aromatic carbon content and increased the average aliphatic chain length in CCD. In some cases, the change in CCD composition occurs even though there is little change in the total amount of CCD produced. The amount of aromatic carbon in CCD increases with increasing mileage. This implies that some oxidative aromatization reactions and reactions, which eliminate aliphatic groups in CCD take place over time on the combustion chamber walls.
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Kelemen, S., Siskin, M., Homan, H., Pugmire, R. et al., "Fuel, Lubricant and Additive Effects on Combustion Chamber Deposits," SAE Technical Paper 982715, 1998, https://doi.org/10.4271/982715.Also In
References
- Kalghatgi, G. “Combustion Chamber Deposits in Spark-Ignition Engines: A Literature Review” SAE # 952443 1995
- Alquist, H. E. Holman, G. E. Wimmer, D. B. “Some Observations of Factors Affecting ORI” SAE # 750932 1975
- Huls, N. “Influence of Engine Variables on Exhaust Oxides of Nitrogen Concentrations from a Multi-Cylinder Engine” SAE # 670482 1967
- Keller, B. D. Meguerin, G. H. Tracey, C. B. Smith, J. B. “ORI of Today's Vehicles” SAE # 760195 1976
- Cheng, W. K. Hamrin, D. Heywood, J. B. Hochgreb, S. Min, K. Norris, M. “An Overview of Hydrocarbon Emissions Mechanisms in Spark-Ignition Engines” SAE # 932708 1993
- Bower, S. L. Jr. Litzinger, T. A. Frottier, V. “The Effects of Fuel Composition and Engine Deposits and Emissions from a Spark Ignition Engine SAE # 932707 1993
- Bitting, W. H. Firmstone, G. P. Keller, C. T. “Effects of Combustion Chamber Deposits on Tailpipe Emissions” SAE # 940345 1993
- Studzinski, W. M. Liiva, P. M. Choate, P. J. Aker, W. P. Smooke, M. Brezinsky, K. Litzinger, T. Bower, S. “An Computational and Experimental Study of Combustion Chamber Deposit Effects on NOx Emissions” SAE # 932815 1993
- Harpster, M. O. Scott, E. M Fry, J. H. Litzinger, T. A. “An Experimental Study of Fuel Composition and Combustion Chamber Deposit Effects on Emissions from a Spark Ignition Engine” SAE #950749 1995
- Barnes, J. R. Stephenson, T. “Influence of Combustion Chamber Deposits on Vehicle Performance and Tailpipe Emissions” SAE # 962027 1996
- Omata, T. Yoshii, T Kaneko, T. Hamatani, K. Nagao, M. “Analytical Studies of Combustion Chamber Deposits and Effects of CCD on Emissions” SAE # 971721 1997
- Haidar, H. A. Heywood, J. B. “Combustion Chamber Deposit Effects on Hydrocarbon Emissions from a Spark-Ignition Engine” SAE # 972887 1997
- Bachman, H. E. Prestridge, E. B. “The Use of Combustion Deposit Analysis for Studying Lubricant Induced ORI” SAE # 750938 1975
- Cheng, S. S. “The Effects of Engine Oils on Intake Valve and Combustion Chamber Deposits” SAE # 932810 1993
- Corkwell, K. C. Megnin, M. K. “Fleet Test Evaluation of Gasoline Additives for Intake Valve and Combustion Chamber Deposit Clean Up” SAE # 950742 1995
- Nagao, M. Kaneko, T. Omata, T. Iwamoto, S. Ohmori, H. Matsuno, S. “Mechanism of Combustion Chamber Deposit Interference and Effects of Gasoline Additives on CCD Formation” SAE # 950741 1995
- Jackson, M. M. Pocinki, S. B. “Effects of Fuel Additives on Combustion Chamber Deposits” SAE # 941890 1994
- Kelemen, S. R. Maxey, C. T. “The Effect of Intake Valve Detergent Structure on the Quantity and Composition of Combustion Chamber Deposits” SAE # 952449 1995
- Takei, Y. Uehara, T. Hoshi, H. Okada, M. “Effects of Gasoline and Gasoline Detergents on Combustion Chamber Deposit Formation” SAE # 941893 1994
- Kalghatgi, G. T. “Combustion Chamber Deposit and Knock in a Spark Ignition Engine - Some Additive and Fuel Effects” SAE # 962009 1996
- Richardson, C. E. Fischer, J. L. Pawczuk, G. “Evaluation of the Effect of Fuel Composition and Gasoline Additives on Combustion Chamber Deposits” SAE # 962012 1996
- Kalghatgi, G. T. “Fuel and Additive Effects on the Rates of Growth of Combustion Chamber Deposits in a Spark Ignition Engine” SAE # 972841 1997
- Weaver, S. L. Lin, J. J. Haury, E. J. Graham, J. Macias, J. R. “A Family of Fuel Additives Reduces the Octane Demand of Automobile Engines” ACS Div. Pet. Chem. 42 1995 344
- Nago, M. Omata, T. Morinaga, M. Baba, Y. Uchiyama,, T. Kagami, M. Takarabe, A. Okazaki, J. Fujimori, Y. Komori, M. Shimoyama, J. Fujiwara, S. Hosono, K. Takei, Y. Matsudaira, J. “Joint PAJ/JAMA Project - Development of a JASO Gasoline Bench Engine Test for Measurung CCD” SAE # 972837 1997
- Homan, H. S. Kelemen, S. R. “The Effect of a Gasoline Additive, Automobile Make, and Driving Cycle on Intake Valve Deposits (IVD) and Combustion Chamber Deposits (CCD) in a Ten Car Fleet Test” SAE # 972836 1997
- Kim, C. Cheng, S. Majorski, S. A. SAE # 912379 1991
- Wood, B. S. Anderson, C. L. “Gasification of Porous Combustion Chamber Deposits in a Spark Ignition Engine” SAE # 930773 1993
- Lepperhoff, G. Houben, M. “Mechanism of Deposit Formation in Internal Combustion Engines and Heat Exchangers” SAE # 931032 1993
- Cheng, S. S. “A Physical Mechanism for Deposit Formation in a Combustion Chamber” SAE # 941892 1994
- Daly, D. T. Bannon S. A. Fog, D. A. Harold, S. M “Mechanism of Combustion Chamber Deposit Formation” SAE# 941889 1994
- Price, R. J. Wilkinson, J. P. T. Jones, D. A. J. Morley “A Laboratory Simulation and Mechanism for the Fuel Dependence of SI Combustion Chamber Deposit Formation” SAE # 952445 1995
- Cheng, S. S. “A Micrographic Study of Deposit Formation Processes in a Combustion Chamber” SAE # 962008 1996
- Uehara, T. Takei, Y. Hoshi, H. Shiratani, K. Esaki, Y. “Investigation of Combustion Chamber Deposit Formation Mechanism” SAE #971723 1997
- Price, R. J. Spink, C. D. Morley, C. “Prediction of Combustion Chamber Deposit Growth in SI Engines” SAE # 972835 1997
- Cheng, S. S. Kim, C. “Effect of Engine Operating Parameters on Engine Combustion Chamber Deposits” SAE # 902108 1991
- Choate, P. J. Edwards, J. C. “Relationship Between Combustion Chamber Deposits, “Fuel Composition, and Combustion Chamber Deposit Structure” SAE # 932812 1993
- Edwards, J. C. Choate, P. J. “Average Molecular Structure of Gasoline Engine Combustion Chamber Deposits Obtained by Solid-State 13C, 31P and 1H Nuclear Magnetic Resonance Spectroscopy” SAE # 932811 1993
- Keller, C. T. Corkwell, K. C. “Honda Generators Used to Evaluate Fuels and Additive Effects on Combustion Chamber Deposits” SAE # 940347 1994
- Edwards, J. C. “Multinuclear and Multidimentional Solid-State NMR Investigations of Combustion Chamber Deposits” ACS Div. Pet. Chem. 42 1995 319
- Yeh, S. W. Moore, S. M. Sabourin, E. T. “The Effect of Engine Operating Conditions on CCD Chemistry and Morphology” ACS Div. Pet. Chem. 42 1995 323
- Daly, D. T. Dohner, B. R. Weisenberger, L. A. Budinger, P. A. “The Rate and Characterization of Combustion Chamber Deposits” ACS Div. Pet. Chem. 42 1995 330
- Kelemen, S. R. Rose, K. D. Kwiatek, P. J. “Carbon Aromaticity Based on XPS π to π* Signal Intensity” Applied Surface Science 64 1993 167
- Kelemen, S. R. Gorbaty, M. L. Vaughn, S. N. Kwiatek, P. J. “Quantification of Nitrogen Forms in Argonne Premium Coal” Energy and Fuels 8 1994 896
- Kelemen, S. R. Kwiatek, P. J. “Quantification of Organic Oxygen Species on the Surface of Fresh and Reacted Argonne Premium Coal” Energy and Fuels 9 1995 841
- Kelemen, S. R. Vaughn, S. N. Gorbaty, M. L. Kwiatek, P. J. “Transformation Kinetics of Sulfur Forms in Argonne Premium Coal” Fuel 72 1993 645
- Solum, M. S. Pugmire, R. K. Grant, D. M. “13C Solid State NMR of Argonne Premium Coals” Energy and Fuels 3 187 1989
- Solomon, P. R. Fletcher, T. H. Pugmire, R. J. “Progress in Coal Pyrolysis” Fuel 72 587 1993
- Newman, R. H. “Chemical-Shift Anisotropies Can Dominate in Dipolar Dephasing” J. Magn. Reson. 96 370 1992
- Enomoto, Y. Furuhama, S. “A study of the Local Heat Transfer Coefficient on the Combustion Chamber Walls of a Four-Stroke Gasoline Engine” JSME Int. Journal 32 1989 107
- Enomoto, Y. Kitahara, N. Takai, M. “Heat Losses during Knocking in a Four-Stroke Gasoline Engine” JSME Int. Journal 37 1994 668
- Bethel, S. Anderson, C. L. “In-Situ Infrared Technique for Measuring Cycle-Resolved Transient Combustion Chamber Surface Temperatures in a Fired Engine” SAE # 860240 1986
- Hayes, T. K. White, R. A. Peters, J. E. “Combustion Chamber Temperature and Instantaneous Local Heat Flux Measurements in a Spark Ignition Engine” SAE # 930217 1993
- Nakic, D. J. Assanis, D. N. White, R. A. “Effect of Elevated Pistion Temperature on Combustion Chamber deposit Growth” SAE # 940948 1994
- Owens, J. P. “Comparison of Cylinder Head Deposit Thickness and Weight Data in Fleet and Dynamometer Testing” SAE # 952448 1995
- Ehmann, W. D. Koppenall, D. W. Hamrin, C. E., Jr. Jones, W. C. Prasad, M. N. Tian, W. Z. “Comparison of Methods for the Determination of Organic Oxygen in Coals” Fuel 65 563 1986
- Perry, D. L. Grint, A. Fuel 62 1029 1983
- Clark, D. T. Wilson, R. “XPS Applied to Aspects of Coal Surface Chemistry” Fuel 62 1034 1983
- Pels, J. R. “Nitrous Oxide in Coal Combustion” Delft Univ. of Tech. The Netherlands 1995
- Clarke, L. J. Haddock, G. J. “The relationship Between Gasoline Additive Thermal Stability and Combustion Chamber Deposits” SAE# 972840 1997
- Orelup, J. W. Lee, O. I. “Factors Influencing Carbon Formation in Automobile Engines” Industrial and Engineering Chemistry 17 731 1925
- Ebert, L. B. Davis, W. H. Mills, D. R. Dannerlin, D. I. Rose K. D. Melchior, M. T. “The Chemistry of Internal Combustion Engine Deposits - Parts I, II and III” Plenum Press 1985 Ebert, L. B.