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Fischer-Tropsch Diesel Fuels - Properties and Exhaust Emissions: A Literature Review
Technical Paper
2003-01-0763
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Natural gas, coal, and biomass can be converted to diesel fuel through Fischer-Tropsch (F-T) processes. Variations of the F-T process and/or product work-up can be used to tailor the fuel properties to meet end-users needs. Regardless of feedstock or process, F-T diesel fuels typically have a number of very desirable properties.
This review describes typical F-T diesel fuel properties, discusses how these fuel properties impact pollutant emissions, and draws together data from known engine and chassis dynamometer studies of emissions.
The comparison of fuel properties reveals that F-T diesel fuel is typically one of two types - a very high cetane number (>74), zero aromatic product or a moderate cetane (∼60), low aromatic (≤15%) product. The very high cetane fuels typically have less desirable low temperature properties while the moderate cetane fuels have cold flow properties more typical of conventional diesel fuels. The lubricity of both types of F-T diesel fuels is poor, but can be improved with additives. The effects of long-term use of F-T diesel fuel on engine durability have not been documented.
Fischer-Tropsch diesel fuel can be used neat without engine modification or can be blended in any proportion with conventional diesel fuel. A number of studies have collected emissions data from F-T diesel and F-T/conventional diesel fuel blends in engine and chassis dynamometers. In almost every case, NOx, CO, and PM emissions are reduced with neat F-T diesel fuel. The impact of F-T diesel fuel on HC emissions is more variable, although the HC emissions are very low in any case. Average NOx reductions are 13% and average PM reductions are 26% compared to conventional diesel fuel.
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Citation
Alleman, T. and McCormick, R., "Fischer-Tropsch Diesel Fuels - Properties and Exhaust Emissions: A Literature Review," SAE Technical Paper 2003-01-0763, 2003, https://doi.org/10.4271/2003-01-0763.Also In
Ci Engine Combustion Processes & Performance With Alternative Fuels
Number: SP-1737; Published: 2003-03-03
Number: SP-1737; Published: 2003-03-03
References
- Dry, Mark E. “Fischer-Tropsch reactions and the environment” App. Catal. A 189 1999 185
- “Fischer-Tropsch Technology” Howard, Weil, Labouisse, Friedrichs, December 18 1998
- Dry, Mark E. “Practical and theoretical aspects of the catalytic Fischer-Tropsch process” Applied Catalysis A: General 138 1996 319
- Dry, Mark E. “The Fischer-Tropsch process: 1950-2000” Catal. Today 71 2002 227
- Docket for Rulemaking on Fischer-Tropsch Diesel Fuels (EE-RM-02-200), Mossgas Pty Ltd Petition www.ott.doe.gov/epact/fuel_pet.shtml 2002
- Morgan, Paul M. Viljoen, Carl L. Roets, Piet N. Schaberg, Paul W. Myburgh, Ian S. Botha, Jacobus J. Dancuart, Luis P. “Some Comparative Chemical, Physical and Compatibility Properties of Sasol Slurry Phase Distillate Diesel Fuel” SAE Technical Paper No. 982488 1998
- “Gas-to-Liquids At-a-Glance 2000” Hart Energy Publication 2000
- Norton, Paul Vertin, Keith Bailey, Brent Clark, Nigel N. Lyons, Donald Goguen, Stephen Eberhardt, James “Emissions from Trucks using Fischer-Tropsch Diesel Fuel” SAE Technical Paper No. 982526 1998
- Norton, Paul Vertin, Keith Clark, Nigel N. Lyons, Donald W. Gautam, Mridul Goguen, Stephen Eberhardt, James “Emissions from Buses with DDC 6V92 Engines Using Synthetic Diesel Fuel” SAE Technical Paper No. 1999-01-1512 1999
- McCormick, Robert L. Alvarez, Javier R. Graboski, Michael S. Tyson, K. Shaine Vertin, Keith “Fuel Additive and Blending Approaches to Reducing NO x Emissions from Biodiesel” SAE Technical Paper No. 2002-01-1658 2002
- Owen, Keith Coley, Trevor Automotive Fuels Reference Book 2nd Edition Society of Automotive Engineers 1995
- Lee, Rob Pedley, Joanna Hobbs, Christine “Fuel Quality Impact on Heavy Duty Diesel Emissions: - A Literature Review” SAE Technical Paper No. 982649 1998
- Daniels, Teresa L. McCormick, Robert L. Graboski, Michael S. Carlson, Philip N. Rao, Venkatesh Rice, Gary W. “The Effect of Diesel Sulfur Content and Oxidation Catalysts on Transient Emissions at High Altitude from a 1995 Detroit Diesel Series 50 Urban Bus Engine” SAE Technical Paper No. 961974 1996
- Harayama, Naoya Niimura, Keiichi Watanabe, Yoshito “Effects of Sulfate Adsorption on Performance of Diesel Oxidation Catalysts” SAE Technical Paper No. 920852 1992
- “Catalyst-Based Diesel Particulate Filters and NO x Adsorbers: A Summary of the Technologies and the Effects of Fuel Sulfur” August 14 2000 www.meca.org
- DECSE website Dec. 2001 www.ott.doe.gov/decse/
- Ryan Thomas W., III Buckingham, Janet Dodge, Lee G. Olikara, Cherian “The Effects of Fuel Properties on Emissions from a 2.5gm NO x Heavy-Duty Diesel Engine” SAE Technical Paper No. 982491 1998
- Advanced Petroleum Based Fuel Property Database www.ott.doe.gov/fuelprops
- Beatrice, C. Bertoli, C. Del Giacomo, N. “The Influence of Fuel Formulations on Pollutant of a Light Duty D.I. Diesel Engine” SAE Technical Paper No. 961972 1996
- Martin, Brigitte Aakko, Paivi Beckman, Derek Del Giacomo, Nicola Giavazzi, Fulvio “Influence of Future Fuel Formulations on Diesel Engine Emissions - A Joint European Study” SAE Technical Paper No. 972966 1997
- Suppes, G.J. Lula, C.J. Burkhart, M.L. Swearingen, J.D. “Type Performance of Fischer-Tropsch Liquids (FTL) in Modified Off-Highway Diesel Engine Test Cycle” SAE Technical Paper No. 1999-01-1474 1999
- Clark, R.H. Virrels, I.G. Maillard, C. Schmidt, M. “The performance of Diesel fuel manufactured by Shell's GtL technology in the latest technology vehicles” Proceeding of 3 rd Int. Colloquium, “Fuels” Tech. Akad. Essligen Ostfildern, Germany Jan. 17-18 2001
- Clark, R.H. Battersby, N.S. Louis, J.J.J. Palmer, A.P. Stradling, R.J. Whale, G.F. “The Environmental Benefits of Shell GTL Diesel” Proceeding of 4 th Int. Colloquium, “Fuels” Tech. Akad. Esslingen Ostfildern, Germany Jan 15-16 2003
- Sirman, M.B. Owens, E.C. Whitney, K.A. “Emissions Comparison of Alternative Fuels in an Advanced Automotive Diesel Engine” SAE Technical Paper No. 2000-01-2048 2000
- Kenney, Thomas E. Gardner, Timothy P. Low, Scott S. Eckstrom, John C. Wolf, Leslie R. Korn, Salo J. Szymkowicz, Patrick G. “Overall Results” Phase I Ad Hoc Diesel Fuel Test Program” SAE Technical Paper No. 2001-01-0151 2001
- Ball, James C. Gonzalez D. Manuel A. Lapin, Charles Liney, Eleanor Buckingham, Janet Frame, Edwin Yost, Doug Natarajan, Mani Garbak, John Wallace James P., III “Dimethoxy Methane in Diesel Fuel: Part 2. The Effect of Fuels on Emissions of Toxic Air Pollutants and Gas/Solid Phase PAH Using a Composite Of Engine Operating Modes” SAE Technical Paper No. 2001-01-3628 2001
- Johnson, Jack W. Berlowitz, Paul J. Ryan, D.F. Wittenbrink, R.J. Benetti, W.B. Ansell, L.L. Kwon, Y. Rickeard, D.J. “Emissions from Fischer-Tropsch Diesel Fuels” SAE Technical Paper No. 2001-01-3518 2001
- Fanick, E. Robert Schubert, Paul F. Russell, Branch J. Freerks, Robert L. “Comparison of Emission Characteristics of Conventional, Hydrotreated, and Fischer-Tropsch Diesel Fuels in a Heavy-Duty Diesel Engine” SAE Technical Paper No. 2001-01-3519 2001
- Schubert, Paul F. Russell, Branch J. Freerks, Robert L. DeVore, Jason Fanick, E. Robert “Impact of Ultra-Clean Fischer-Tropsch Diesel Fuel on Emissions in a Light Duty Passenger Car Diesel Engine” SAE Technical Paper No. 2002-01-2725 2002
- Schaberg, Paul W. Myburgh, Ian S. Botha, Jacobus J. Roets, Piet N. Viljoen, Carl L. Dancuart, Luis P. Starr, Michael E. “Diesel Exhaust Emissions Using Sasol Slurry Phase Distillate Process Fuels” SAE Technical Paper No. 972898 1997
- Schaberg, Paul W. Myburgh, Ian S. Botha, Jacobus J. Khalek, Imad A. “Comparative Emissions Performance of Sasol Fischer-Tropsch Diesel Fuel in Current and Older Technology Heavy-Duty Engines” SAE Technical Paper No. 2000-01-1912 2000
- Clark, Nigel N. Atkinson, Christopher M. Thompson, Gregory J. Nine, Ralph D. “Transient Emissions Comparisons of Alternative Compression Ignition Fuels” SAE Technical Paper No. 1999-01-1117 1999
- Atkinson, Christopher M. Thompson, Gregory J. Traver, Michael L. Clark, Nigel N. “In-Cylinder Combustion Pressure Characteristics of Fischer-Tropsch and Conventional Diesel Fuels in a Heavy Duty CI Engine” SAE Technical Paper No. 1999-01-1472 1999
- Cheng, Adelbert S. Dibble, Robert W. “Emissions Performance of Oxygenate-in-Diesel Blends and Fischer-Tropsch Diesel in a Compression Ignition Engine” SAE Technical Paper No. 1999-01-3606 1999
- Stavinoha, Leo L. Alfaro, Emilio S. Dobbs Herbert H., Jr. Villahermosa, Luis A. Heywood, John B. “Alternative Fuels: Gas to Liquids as Potential 21 st Century Truck Fuels” SAE Technical Paper No. 2000-01-3422 2000
- Code of Federal Regulations, Title 40, Part 86, Subpart N “Emission Regulations for New-Otto Cycle and Diesel Heavy-Duty Engines; Gaseous and Particulate Exhaust Test Procedures”
- Nord, Kent Haupt, Dan “Evaluating a Fischer-Tropsch Fuel, Eco-Par™, in a Valmet Diesel Engine” SAE Technical Paper No. 2002-01-2726 2002
- Schaberg, Paul W. Zarling, Darrick D. Waytulonis, Robert W. Kittelson, David B. “Exhaust Particle Number and Size Distributions with Conventional and Fischer-Tropsch Diesel Fuels” SAE Technical Paper No. 2002-01-2727 2002
- May, Mike P. Vertin, Keith Ren, Shouxian Gui, Xinqun Myburgh, Ian Schaberg, Paul “Development of Truck Engine Technologies for Use with Fischer-Tropsch Fuels” SAE Technical Paper No. 2001-01-3520 2001
- “The Wilcoxon Signed-Rank Test” http://faculty.vassar.edu/lowry/ch12a.html