Pollutant emissions and environmental assessment of ethyl 3-ethoxybutyrate, a potential renewable fuel.

Autor: Storey JM; Fuels, Engines, and Emissions Research Center, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA., Bunce MP; Fuels, Engines, and Emissions Research Center, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA.; MAHLE Powertrain, LLC, Farmington Hills, MI, 48337, USA., Clarke EM; Department of Biological Sciences, University of Alabama, Tuscaloosa, AL, 35487, USA.; Feinberg School of Medicine, Northwestern University, Chicago, IL, 60611, USA., Edmonds JW; Department of Biological Sciences, University of Alabama, Tuscaloosa, AL, 35487, USA.; Physical and Life Sciences, Nevada State College, Henderson, NV, 89002, USA., Findlay RH; Department of Biological Sciences, University of Alabama, Tuscaloosa, AL, 35487, USA., Ritchie SM; Department of Chemical and Biological Engineering, University of Alabama, Tuscaloosa, AL, 35487, USA., Eyers L; C/e- Solutions, Inc., Woodland, CA, 95695, USA.; 1234, Vessy, Switzerland., McMurry ZA; C/e- Solutions, Inc., Woodland, CA, 95695, USA.; Vitruvian Energy, SPC, Seattle, WA, 98107, USA., Smoot JC; C/e- Solutions, Inc., Woodland, CA, 95695, USA. jc_smoot@yahoo.com.; West Sacramento, CA, 95691, USA. jc_smoot@yahoo.com.
Jazyk: angličtina
Zdroj: Environmental science and pollution research international [Environ Sci Pollut Res Int] 2016 Sep; Vol. 23 (18), pp. 18575-84. Date of Electronic Publication: 2016 Jun 14.
DOI: 10.1007/s11356-016-7052-z
Abstrakt: Renewable and bio-based transportation fuel sources can lower the life-cycle greenhouse gas emissions from vehicles. We present an initial assessment of ethyl 3-ethoxybutyrate (EEB) as a biofuel in terms of its performance as a fuel oxygenate and its persistence in the environment. EEB can be produced from ethanol and poly-3-hydroxybutyrate, a bacterial storage polymer that can be produced from non-food biomass and other organic feedstocks. Physicochemical properties of EEB and fuel-relevant properties of EEB-gasoline blends were measured, emissions of criteria pollutants from EEB as a gasoline additive in a production vehicle were evaluated, and fate and persistence of EEB in the environment were estimated. EEB solubility in water was 25.8 g/L, its Kow was 1.8, and its Henry's Law constant was 1.04 × 10(-5) atm-m(3)/mole. The anti-knock index values for 5 and 20 % v/v EEB-gasoline blends were 91.6 and 91.9, respectively. Reductions in fuel economy were consistent with the level of oxygenation, and criteria emissions were met by the vehicle operated over the urban dynamometer driving cycle (FTP 75). Predicted environmental persistence ranged from 15 to 30 days which indicates that EEB is not likely to be a persistent organic pollutant. In combination, these results suggest a high potential for the use of EEB as a renewable fuel source.
Databáze: MEDLINE
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