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Blend Ratio Optimization of Fuels Containing Gasoline Blendstock, Ethanol, and Higher Alcohols (C3-C6): Part II - Blend Properties and Target Value Sensitivity
Technical Paper
2013-01-1126
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Higher carbon number alcohols offer an opportunity to meet the Renewable Fuel Standard (RFS2) and improve the energy content, petroleum displacement, and/or knock resistance of gasoline-alcohol blends from traditional ethanol blends such as E10 while maintaining desired and regulated fuel properties. Part II of this paper builds upon the alcohol selection, fuel implementation scenarios, criteria target values, and property prediction methodologies detailed in Part I.
For each scenario, optimization schemes include maximizing energy content, knock resistance, or petroleum displacement. Optimum blend composition is very sensitive to energy content, knock resistance, vapor pressure, and oxygen content criteria target values. Iso-propanol is favored in both scenarios' suitable blends because of its high RON value. A range of blends of ethanol, propanol, butanol, and pentanol with a gasoline blendstock can possess energy content, knock resistance, and/or petroleum displacement that exceed current gasoline-ethanol blends while meeting oxygen content and vapor pressure regulations.
Results are similar whether examining blends with total alcohol content comparable to E10/E15 or alcohol content high enough to meet RFS2 requirements. Blends of higher alcohols with BOB can meet oxygen content, vapor pressure, and/or knock resistance requirements while increasing energy content and/or petroleum displacement. For example, if higher knock resistance is desired, a blend of iso-propanol and iso-butanol with BOB meets oxygen content, vapor pressure, and energy content requirements while increasing knock resistance and petroleum displacement as compared to E10.
Authors
- David Ertl - Iowa Corn Promotion Board
- Rodney Williamson - Iowa Corn Promotion Board
- Andrew Ickes - Argonne National Laboratory
- Thomas Wallner - Argonne National Laboratory
- Kristina Lawyer - Michigan Technological University
- Scott Miers - Michigan Technological University
- Jeffrey Naber - Michigan Technological University
Citation
Lawyer, K., Ickes, A., Wallner, T., Ertl, D. et al., "Blend Ratio Optimization of Fuels Containing Gasoline Blendstock, Ethanol, and Higher Alcohols (C3-C6): Part II - Blend Properties and Target Value Sensitivity," SAE Technical Paper 2013-01-1126, 2013, https://doi.org/10.4271/2013-01-1126.Also In
References
- Perry , Robert H. and Green , Don W. Perry's Chemical Engineers' Handbook McGraw-Hill Handbooks 0071346384 1999
- Wallner , T. , Ickes , A. , Lawyer , K. Analytical Assessment of C2-C8 Alcohols as Spark-Ignition Engine Fuels FISITA World Automotive Congress 2012
- Lawyer , K. , Ickes , A. , Wallner , T. , Ertl , D. et al. Blend Ratio Optimization of Fuels Containing Gasoline Blendstock, Ethanol, and Higher Alcohols (C3-C6): Part I - Methodology and Scenario Definition SAE Technical Paper 2013-01-1144 2013
- Andersen , V.F. et al Distillation Curves for Alcohol-Gasoline Blends Energy Fuels 2012 2683 2691
- Anderson , J.E. et al Octane Numbers of Ethanol- and Methanol-Gasoline Blends Estimated from Molar Concentrations Energy Fuels 2010 6576 6585
- Andersen , V.F. et al Vapor Pressures of Alcohol-Gasoline Blends Energy Fuels 2010 3647 3654
- U.S. Energy Information Administration Analysis and Projections http://www.eia.gov/analysis/ Oct. 2012
- Environmental Protection Agency Regulation of Fuels and Fuel Additives: 2012 Renewable Fuel Standards; Final Rule Federal Register 77 5 Jan. 2012
- Toukoniitty , E. , Madnani , D. et al Conversion of Bioethanol to 1-Butanol - A Step Towards Sustainable Transportation Fuels 21 st North American Catalysis Society Meeting 2011 2322