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Emissions from Low- and Mid-Level Blends of Anhydrous Ethanol in Gasoline
Technical Paper
2019-01-0997
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Typically ethanol is present in gasoline as a 10% blend by volume (E10), although E15, E85 (51 to 83%), and E0 are also available at selected stations. Numerous studies of tailpipe regulated emissions have been conducted to compare emissions from E10 and E0, and there is a growing body of literature addressing blends of E15 and higher. Isolating the effect of ethanol in a study is philosophically difficult, because the ethanol naturally displaces some hydrocarbons, because the ethanol interacts with the remaining gasoline, and because properties of mixing are often nonlinear. Some studies have used splash blending, simply mixing the ethanol with a reference gasoline to produce a blend for comparison to the reference. Others have used match blending, where the objective is to match selected properties of the blend to properties of a reference gasoline. Recent studies have examined both port injected and direct injected engines, the latter being both naturally aspirated and turbocharged, and differing test cycles have been used. In consequence, the conclusions of the studies are not uniform. This paper examines the available data and statistical analyses to determine the effects of blending approach, engine technology and test cycle on the comparative emissions. Of central interest are the parameters selected as study variables or to be held constant in match blending of fuels at different ethanol levels. Distillation matching must acknowledge the effect of ethanol on the curve, demanding correction by selective addition of hydrocarbons. Some multivariate studies have employed aromatic content and the particle mass index for additional matching With splash blending studies, the parameters vary by inherent nature of the mix, and octane number (ON) rises with ethanol content. Statistics and causes behind variability of results are explained, and the match blends employed in studies are compared with common refinery practice in producing gasoline. Results demonstrate the importance of including all multivariate study parameters for emissions prediction.
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Clark, N., Klein, T., Higgins, T., and McKain, D., "Emissions from Low- and Mid-Level Blends of Anhydrous Ethanol in Gasoline," SAE Technical Paper 2019-01-0997, 2019, https://doi.org/10.4271/2019-01-0997.Data Sets - Support Documents
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References
- Argonne National Laboratory GREET Model https://greet.es.anl.gov/net 2018
- National Highway Traffic Safety Administration https://www.nhtsa.gov/laws-regulations/corporate-average-fuel-economy 2018
- Durbin , T.D. , Miller , J.W. , Younglove , T. , Huai , T. et al. 2006
- West , B.H. , Sluder , C.S. , Knoll , K.E. , Orban , J.E. et al. 2012
- Environmental Protection Agency Assessing the Effect of Five Gasoline Properties from Light-Duty Vehicles Certified to Tier 2 Standards: Analysis of Data from EPAct Phase 3 (EPAct/V2/E-89), Final Report 2013 https://www.epa.gov/moves/EPActv2e-89-tier-2-gasoline-fuel-effects-study
- Environmental Protection Agency 2013
- Whitney , K. 2014
- Morgan , P. , Smith , I. , Premnath , V. and Kroll , S. 2017
- Environmental Protection Agency 2014
- International Council on Clean Transportation An Introduction to Petroleum Refining and The Production of Ultra Low Sulfur Gasoline and Diesel Fuel 2011 www.theicct.org
- Jechura , J. Product Blending & Optimization Considerations 2018 https://inside.mines.edu/~jjechura/Refining/11_Blending_Optimization.pdf
- Jechura , J. Refinery Feedstocks & Products Properties and Specifications, Colorado School of Mines 2018 https://inside.mines.edu/~jjechura/Refining/02_Feedstocks_&_Products.pdf
- National Petroleum Refiners Association 1990
- Bishop , G.A. , Hoekman , K. , and Broch , A. 2017
- Anderson , J.E. , Wallington , T.J. , Stein , R.A. , and Studzinski , W.M. Issues with T50 and T90 as Match Criteria for Ethanol-Gasoline Blends SAE Int. J. Fuels Lubr 7 3 1027 1040 2014 10.4271/2014-01-9080
- Anderson , J.E. , Kramer , U. , Mueller , S.A. , and Wallington , T.J. Octane Numbers of Ethanol- and Methanol-Gasoline Blends Estimated from Molar Concentrations Energy & Fuels 24 6576 6585 2010 10.1021/ef101125c
- Environmental Protection Agency Vehicle and Emissions Testing Dynamometer Drive Schedules www.epa.gov/vehicle-and-fuel-emissions-testing/dynamometer-drive-schedules 2018
- Morgan , P. , Smith , I. , Premnath , V. , and Kroll , S. 2014
- Morgan , P. and Lobato , P. 2014
- Morgan , P. , Lobato , P. , Premnath , V. , Kroll , S. et al. 2018
- Schifter , I. , Dfaz , L. , Avalos , S. , Vera , M. et al. Effect of Methyl Tertiary Butyl Ether Concentrations on Exhaust Emissions from Gasoline Used in the Metropolitan Area of Mexico City Journal of the Air & Waste Management Association 50 4 488 494 2000 10.1080/10473289.2000.10464042
- Environmental Protection Agency MOVES and other Mobile Source Emissions Models www.epa.gov/moves 2018
- Sobotowski , R.A. , Butler , A. , and Guerra , Z. A Pilot Study of Fuel Impacts on PM Emissions from Light-Duty Gasoline Vehicles SAE Int. J. Fuels Lubr 8 1 214 233 2015 10.4271/2015-01-9071
- Aikawa , K. , Sakurai , T. , and Jetter , J.J. Development of a Predictive Model for Gasoline Vehicle Particulate Matter Emissions SAE Int. J. Fuels Lubr 3 2 610 622 2010 10.4271/2010-01-2115
- Butler , A.D. , Sobotowski , R.A. , Hoffman , G.J. , and Machiele , P. Influence of Fuel PM Index and Ethanol Content on Particulate Emissions from Light-Duty Gasoline Vehicles SAE Technical Paper 2015-01-1072 2015 10.4271/2015-01-1072
- Haskew , H. and Liberty , T. 2011
- Vertin , K. , Glinsky , G. , and Reek , A. 2012
- Maricq , M.M. , Szente , J.J. , and Jahr , K. The Impact of Ethanol Fuel Blends on PM Emissions from a Light-Duty GDI Vehicle Aerosol Science & Technology 46 576 583 2012
- Schulz , M. and Clark , S. Vehicle Emissions and Fuel Economy Effects of 16% Butanol and Various Ethanol Blended Fuels (E10, E20 and E85) Journal of ASTM International 8 2 2011
- Graham , L.A. , Belisle , S.L. , and Baas , C.-L. Emissions from Light-Duty Gasoline Vehicles Operating on Low Blend Ethanol Gasoline and E85 Atmospheric Environment 42 4498 4516 2008
- Yassine , M.K. and La Pan , M. Impact of Ethanol Fuels on Regulated Tailpipe Emissions SAE Technical Paper 2012-01-0872 2012 10.4271/2012-01-0872
- Cooney , C. , Wallner , T. , McConnell , S. , Gillen , J.C. et al. Effects of Blending Gasoline with Ethanol and Butanol on Engine Efficiency and Emissions Using a Direct-Injection, Spark-Ignited Engine ASME Internal Combustion Engine Division Conference 2009
- Hubbard , C.P. , Anderson , J.E. , and Wallington , T.J. Ethanol and Air Quality: Influence of Fuel Ethanol Content on Emissions and Fuel Economy of Flexible Fuel Vehicles Environmental Science & Technology 48 861 867 2014
- Wallner , T. , Ickes , A. , Lawyer , K. , Miers , S. et al. Meeting RFS2 Targets with an E10/E15-Like Fuel - Experimental and Analytical Assessment of Higher Alcohols in Multi-Component Blends with Gasoline SAE Int. J. Fuels Lubr 6 3 691 701 2013 10.4271/2013-01-2612
- Suarez-Bertoa , R. , Zardini , A.A. , Keuken , H. , and Astorga , C. Impact of Ethanol Containing Gasoline Blends on Emissions from a Flex-Fuel Vehicle Tested over the Worldwide Harmonized Light-Duty Test Cycle (WLTC) Fuel 143 173 182 2015
- Karavalakis , G. , Durbin , T.D. , Yang , J. , Ventura , L. et al. Fuel Effects on PM Emissions from Different Vehicle/Engine Configurations: A Literature Review SAE Technical Paper 2018-01-0349 2018 10.4271/2018-01-0349
- Raza , M. , Chen , L. , Leach , F. , and Ding , S. A Review of Particulate Number (PN) Emissions from Gasoline Direct Injection (GDI) Engines and Their Control Techniques Energies 11 1417 2018 10.3390/en11061417
- Stein , R. , Anderson , J. , and Wallington , T. An Overview of the Effects of Ethanol-Gasoline Blends on SI Engine Performance, Fuel Efficiency, and Emissions SAE Int. J. Engines 6 2013 10.4271/2013-01-1635
- Chan , T. , Lax , D. , Gunter , G. , Hendren , J. et al. Assessment of the Fuel Composition Impact on Black Carbon Mass, Particle Number Size Distributions, Solid Particle Number, Organic Materials, and Regulated Gaseous Emissions from a Light-Duty Gasoline Direct Injection Truck and Passenger Car Energy & Fuels 31 2017
- Darlington , T. , Kahlbaum , D. , Van Hulzen , S. , and Furey , R. Analysis of EPAct Emission Data Using T70 as an Additional Predictor of PM Emissions from Tier 2 Gasoline Vehicles SAE Technical Paper 2016-01-0996 2016 10.4271/2016-01-0996
- American Petroleum Institute 2010
- 2017
- Jewitt , C.H. , Gibbs , L.M. , and Evans , B. Gasoline Drivability Index, Ethanol Content and Cold-Start/Warm-Up Vehicle Performance SAE Technical Paper 2005-01-3864 2005 10.4271/2005-01-3864