Maximizing net fuel economy improvement from fusel alcohol blends in gasoline using multivariate optimization
Fusel alcohol mixtures containing ethanol, isobutanol, isopentanol, and 2-phenylethanol have been shown to be a promising means to maximize renewable fuel yield from various biomass feedstocks and waste streams. We hypothesized that use of these fusel alcohol mixtures as a blending agent with gasoli...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2022-06-01
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| Series: | Fuel Communications |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666052022000115 |
| _version_ | 1811244592288235520 |
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| author | Lily Behnke Eric Monroe Bernard Nguyen Alexander Landera Anthe George Zhibin Yang Joshua Heyne Ryan W. Davis |
| author_facet | Lily Behnke Eric Monroe Bernard Nguyen Alexander Landera Anthe George Zhibin Yang Joshua Heyne Ryan W. Davis |
| author_sort | Lily Behnke |
| collection | DOAJ |
| description | Fusel alcohol mixtures containing ethanol, isobutanol, isopentanol, and 2-phenylethanol have been shown to be a promising means to maximize renewable fuel yield from various biomass feedstocks and waste streams. We hypothesized that use of these fusel alcohol mixtures as a blending agent with gasoline can significantly lower the greenhouse gas emissions from the light-duty fleet. Since the composition of fusel alcohol mixtures derived from fermentation is dependent on a variety of factors such as biocatalyst selection and feedstock composition, multi-objective optimization was performed to identify optimal fusel alcohol blends in gasoline that simultaneously maximize thermodynamic efficiency gain and energy density. Pareto front analysis combined with fuel property predictions and a Merit Score-based metric led to prediction of optimal fusel alcohol-gasoline blends over a range of blending volumes. The optimal fusel blends were analyzed based on a Net Fuel Economy Improvement Potential metric for volumetric blending in a gasoline base fuel. The results demonstrate that various fusel alcohol blends provide the ability to maximize efficiency improvement while minimizing increases to blending vapor pressure and decreases to energy density compared to an ethanol-only bioblendstock. Fusel blends exhibit predicted Net Fuel Economy Improvement Potential comparable to neat ethanol when blended with gasoline in all scenarios, with increased improvement over ethanol at moderate to high bio-blendstock blending levels. The optimal fusel blend that was identified was a mixture of 90% v/v isobutanol and 10% v/v 2-phenylethanol, blended at 45% v/v with gasoline, yielding a predicted 4.67% increase in Net Fuel Economy Improvement Potential. These findings suggest that incorporation of fusel alcohols as a gasoline bioblendstock can improve both fuel performance and the net fuel yield of the bioethanol industry. |
| first_indexed | 2024-04-12T14:27:53Z |
| format | Article |
| id | doaj.art-c547f693166749eaa669af7b6969ad2c |
| institution | Directory Open Access Journal |
| issn | 2666-0520 |
| language | English |
| last_indexed | 2024-04-12T14:27:53Z |
| publishDate | 2022-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Fuel Communications |
| spelling | doaj.art-c547f693166749eaa669af7b6969ad2c2022-12-22T03:29:23ZengElsevierFuel Communications2666-05202022-06-0111100059Maximizing net fuel economy improvement from fusel alcohol blends in gasoline using multivariate optimizationLily Behnke0Eric Monroe1Bernard Nguyen2Alexander Landera3Anthe George4Zhibin Yang5Joshua Heyne6Ryan W. Davis7University of Dayton, Department of Mechanical & Aerospace Engineering, 300 College Park, Dayton, Ohio 45469, United States; Sandia National Laboratories, 7011 East Avenue, Livermore, California 94550, United StatesSandia National Laboratories, 7011 East Avenue, Livermore, California 94550, United StatesSandia National Laboratories, 7011 East Avenue, Livermore, California 94550, United StatesSandia National Laboratories, 7011 East Avenue, Livermore, California 94550, United StatesSandia National Laboratories, 7011 East Avenue, Livermore, California 94550, United StatesUniversity of Dayton, Department of Mechanical & Aerospace Engineering, 300 College Park, Dayton, Ohio 45469, United StatesUniversity of Dayton, Department of Mechanical & Aerospace Engineering, 300 College Park, Dayton, Ohio 45469, United StatesSandia National Laboratories, 7011 East Avenue, Livermore, California 94550, United States; Corresponding author at: Sandia National Laboratories California, United States.Fusel alcohol mixtures containing ethanol, isobutanol, isopentanol, and 2-phenylethanol have been shown to be a promising means to maximize renewable fuel yield from various biomass feedstocks and waste streams. We hypothesized that use of these fusel alcohol mixtures as a blending agent with gasoline can significantly lower the greenhouse gas emissions from the light-duty fleet. Since the composition of fusel alcohol mixtures derived from fermentation is dependent on a variety of factors such as biocatalyst selection and feedstock composition, multi-objective optimization was performed to identify optimal fusel alcohol blends in gasoline that simultaneously maximize thermodynamic efficiency gain and energy density. Pareto front analysis combined with fuel property predictions and a Merit Score-based metric led to prediction of optimal fusel alcohol-gasoline blends over a range of blending volumes. The optimal fusel blends were analyzed based on a Net Fuel Economy Improvement Potential metric for volumetric blending in a gasoline base fuel. The results demonstrate that various fusel alcohol blends provide the ability to maximize efficiency improvement while minimizing increases to blending vapor pressure and decreases to energy density compared to an ethanol-only bioblendstock. Fusel blends exhibit predicted Net Fuel Economy Improvement Potential comparable to neat ethanol when blended with gasoline in all scenarios, with increased improvement over ethanol at moderate to high bio-blendstock blending levels. The optimal fusel blend that was identified was a mixture of 90% v/v isobutanol and 10% v/v 2-phenylethanol, blended at 45% v/v with gasoline, yielding a predicted 4.67% increase in Net Fuel Economy Improvement Potential. These findings suggest that incorporation of fusel alcohols as a gasoline bioblendstock can improve both fuel performance and the net fuel yield of the bioethanol industry.http://www.sciencedirect.com/science/article/pii/S2666052022000115Net fuel economy improvement potentialFusel alcoholsEthanolMerit scoreOptimizationBiofuels |
| spellingShingle | Lily Behnke Eric Monroe Bernard Nguyen Alexander Landera Anthe George Zhibin Yang Joshua Heyne Ryan W. Davis Maximizing net fuel economy improvement from fusel alcohol blends in gasoline using multivariate optimization Fuel Communications Net fuel economy improvement potential Fusel alcohols Ethanol Merit score Optimization Biofuels |
| title | Maximizing net fuel economy improvement from fusel alcohol blends in gasoline using multivariate optimization |
| title_full | Maximizing net fuel economy improvement from fusel alcohol blends in gasoline using multivariate optimization |
| title_fullStr | Maximizing net fuel economy improvement from fusel alcohol blends in gasoline using multivariate optimization |
| title_full_unstemmed | Maximizing net fuel economy improvement from fusel alcohol blends in gasoline using multivariate optimization |
| title_short | Maximizing net fuel economy improvement from fusel alcohol blends in gasoline using multivariate optimization |
| title_sort | maximizing net fuel economy improvement from fusel alcohol blends in gasoline using multivariate optimization |
| topic | Net fuel economy improvement potential Fusel alcohols Ethanol Merit score Optimization Biofuels |
| url | http://www.sciencedirect.com/science/article/pii/S2666052022000115 |
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