Green Car Congress
MAY 23, 2010
RVPs (predicted DVPE) of single- and dual-alcohol blends in gasoline with different relative proportions of ethanol and 1-butanol. As part of the study, they demonstrated a simple method to prepare dual-alcohol-gasoline blends with Reid vapor pressures (RVPs) “ indistinguishable ” from that of the base gasoline.
Green Car Congress
MAY 1, 2009
A study by engineers from Mahle Powertrain Ltd and BP found strong synergy between spark ignition (SI) engine downsizing and fuel containing low-to-moderate amounts of alcohol, including ethanol and butanol. A Study of Gasoline-Alcohol Blended Fuels in an Advanced Turbocharged DISI Engine. ( Cairns et al.
Green Car Congress
JANUARY 5, 2011
ExxonMobil Research and Engineering Company has filed a US patent application (# 20100326387 , published 30 December 2010) on methods using a wide range of fuel-alcohol blends to expand the operating envelope of engines operating in advanced combustion modes. Lü et al. 2007.01.002.
Green Car Congress
NOVEMBER 26, 2013
Results of a study led by a team from the National Renewable Energy Laboratory on the impact of butanol-gasoline blends on light-duty vehicle emissions suggest that widespread deployment of n-butanol or i-butanol in the gasoline pool could result in changes to the estimated emissions of alcohols and carbonyls in the emissions inventory.
Green Car Congress
DECEMBER 14, 2015
The study results, reported in the journal Fuel , demonstrated that the fuel composition has a significant on particulate emissions from GDI engines. 2014) “Novel Characterization of GDI Engine Exhaust for Gasoline and Mid-Level Gasoline-Alcohol Blends,” SAE Int. Storey et al. 2015.11.019 Storey, J., Szybist, J., Fuels Lubr.
Green Car Congress
AUGUST 30, 2009
d) further provides for alcohol blends as follows: Special provisions for alcohol blends. (1) The 2007 flex-fuel Chevrolet Impala utilized in midlevel blends testing revealed a 15% increase in fuel efficiency using the Highway Fuel Economy Test (HWFET) for E20 in comparison with unleaded regular gasoline.
Green Car Congress
AUGUST 25, 2015
Alcohol and gasoline-alcohol blends also offer efficiency benefits independent of their octane value. There have been many studies that have investigated the potential change in CR enabled by a given increase in fuel octane rating while maintaining similar knock characteristics—these, Leone et al. Leone et al.
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