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Study of Vapor Pressures of Gasoline-Alcohol Blends Finds That Dual-Alcohol Blends Can Result in RVPs Identical to That of Gasoline

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RVPs (predicted DVPE) of single- and dual-alcohol blends in gasoline with different relative proportions of ethanol and 1-butanol.

Study Finds Strong Synergy Between Spark Ignition Engine Downsizing and Low-to-Moderate Alcohol Blend Fuels

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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. Blends with lower alcohol content allowed small improvements in EGR tolerance; only E85 showed a notable increase in tolerance.

ExxonMobil Research files patent application on methods for expanding HCCI and other advanced combustion modes load range with fuel-alcohol blends

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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. The patent application covers blends of between 5% and 95% alcohol.

GM and U Mich receive patent on plug-in series hybrid/extended range electric vehicle powertrain using multiple free piston linear alternator engines

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Fuels can include gasoline blends, and alcohol blended hydrocarbon fuel grades. Ethanol blended hydrocarbon fuels can include higher ethanol blends (e.g. The GM/U Mich patent envisages using multiple free-piston engines (240A through 240D in the patent drawing). Click to enlarge. Patent Drawing of an FPLA.

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NREL study probes emissions impact of butanol-gasoline blends in light-duty vehicles

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Ethanol produced the highest unburned alcohol emissions of 1.38 Summary of significant emissions results from the fuel testing. Resources.

Team from GM, Ford, FCA reviews how to calculate engine efficiency benefits of high octane fuels

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Alcohol and gasoline-alcohol blends also offer efficiency benefits independent of their octane value. —Leone et al.

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Geely invests in Carbon Recycling Intl.; vehicles fueled by methanol from CO2, water and renewable energy

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Vulcanol is fuel-grade methanol, a clean burning, high-octane fuel that can be blended with gasoline for automobiles and used in the production of biodiesel or fuel ethers (DME, MTBE, OME etc.). China Association of Alcohol & Ether Fuel and Automobiles (2014) Methanol Fuel and Vehicles in China: An Overview of Industrial Applications (2014).

Perspective: US Needs to Transition to Hydrous Ethanol as the Primary Renewable Transportation Fuel

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The growth in hydrous ethanol, which uses a blend of 94-95% ethanol to 5-6% water, rapidly increased during the 1980s, with consumption peaking in 1989. Although it previously used a hydrous ethanol blend, Brazil shifted toward the aforementioned anhydrous ethanol, which is used in a ratio of ethanol to gasoline of 20-24:80-76. psi).