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High Octane Fuels

[Due to the increasing size of the archives, each topic page now contains only the prior 365 days of content. Access to older stories is now solely through the Monthly Archive pages or the site search function.]

Clariant, Mercedes-Benz, Haltermann Carless report successful fleet test of E20 cellulosic ethanol blend

February 06, 2017

Clariant, a leading global specialty chemicals company, together with Mercedes-Benz and Haltermann Carless, a well-established HCS Group brand, tested the use of sustainable cellulosic ethanol from agricultural residues in a fleet test with Mercedes-Benz series vehicles over a period of 12 months for the first time in Germany. sunliquid 20 was used for the test—a fuel produced by Haltermann Carless with a cellulosic ethanol content of 20 vol% (E20) from Clariant’s sunliquid plant in Straubing.

The cellulosic ethanol allows greenhouse gas emission savings of up to 95% across the entire value chain without competing with food production or tying up agricultural land.

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Study: splash blended ethanol fuels with higher ethanol percentage enable higher thermal efficiency in SI engine

February 03, 2017

A team from the University of Birmingham (UK) and Shell Global Solutions has investigated the effect of RON, octane sensitivity and charge cooling in splash-blended ethanol fuels with different volume percentages of ethanol on a single-cylinder direct-injection spark ignition (DISI) research engine.

In a paper published in the journal Fuel, the researchers report that at the knock-limited engine loads, splash-blended ethanol fuels with a higher ethanol percentage enabled higher engine thermal efficiency through allowing more advanced combustion phasing and less fuel enrichment for limiting the exhaust gas temperature under the upper limit of 850 °C, which was due to the synergic effects of higher RON and octane sensitivity, as well as better charge cooling.

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Saudi Aramco R&D proposes SuperButol as new low-cost high-octane blend component

January 27, 2017

A team from Saudi Aramco Research and Development Center has developed a novel low-cost, high-octane gasoline blend component it calls SuperButol. SuperButol is made from low-value mixed butenes using a new process the team has named Butenes to Butanol (BTB); it has slightly lower blending RON compared to MTBE but has lower blending vapor pressure and higher energy content compared to ethanol.

It also has an insignificant effect on key gasoline specifications, including potential and actual gum; oxidation stability; intake valve deposits; port fuel injector fouling; haze formation; and water extractability performance. The team suggests that SuperButol is thus a viable and affordable gasoline component, which can help to meet future demands for high-octane gasoline. In addition, the process helps to optimize refinery operations by valorizing low-value products. The team describes SuperButol in a paper in the journal Fuel.

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DOE awarding $16M to 54 projects to help commercialize promising energy technology from national labs

June 22, 2016

The US Department of Energy (DOE) announced nearly $16 million in funding to help businesses move promising energy technologies from DOE’s National Laboratories to the marketplace. This first Department-wide round of funding through the Technology Commercialization Fund (TCF) will support 54 projects at 12 national labs involving 52 private-sector partners. Among the selected technologies are a number addressing advanced vehicle and transportation needs.

The TCF is administered by DOE’s Office of Technology Transitions (OTT), which works to expand the commercial impact of DOE’s portfolio of research, development, demonstration and deployment activities. In February of 2016, OTT announced the first solicitation to the DOE National Laboratories for TCF funding proposals. It received 104 applications from across the laboratory system, for projects in two topic areas:

  • Topic Area 1: Projects for which additional technology maturation is needed to attract a private partner; and

  • Topic Area 2: Cooperative development projects between a lab and industry partner(s), designed to bolster the commercial application of a lab developed technology.

All projects selected for the TCF will receive an equal amount of non-federal funds to match the federal investment.

A selected list of transportation-related TCF selections, as well as the Topic Area 2 projects and their private sector partners is below.

Transportation-related TCF Awards
Technology National Lab Partner Funding
Manufacturing Of Advanced Alnico Magnets for Energy Efficient Traction Drive Motors Ames Carpenter Powder Products $325,000
Direct Fabrication of Fuel Cell Electrodes by Electrodeposition of High-performance Core-shell Catalysts Brookhaven $100,000
Nitride-Stabilized Pt Core-Shell Electrocatalysts for Fuel Cell Cathodes Brookhaven $100,000
Enhancing Lithium-Ion Battery Safety for Vehicle Technologies and Energy Storage Idaho $119,005
Vehicle Controller Area Network (CAN) Bus Network Safety and Security System Idaho Mercedes-Benz R&D North America $150,000
Large Area Polymer Protected Lithium Metal Electrodes with Engineered Dendrite-Blocking Ability Lawrence Berkeley $73,831
Cryo-Compressed Hydrogen Tank Technology in an Internal Combustion Engine Application Lawrence Livermore GoTek Energy $431,995
Scaled Production Of High Octane Biofuel From Biomass-Derived Dimethyl Ether NREL Enerkem $740,000
Thermal Management for Planar Package Power Electronics NREL John Deere Electronic Solutions (JDES) $250,000
Assembly Of Dissimilar Aluminum Alloys For Automotive Application PNNL $500,000
Development of Electrolytes for Lithium Ion Batteries in Wide Temperature Range Applications PNNL Farasis Energy, Navitas Systems $375,000
Direct Extruded High Conductivity Copper for Electric Machines Manufactured Using the ShAPE Process PNNL General Motors R&D $600,000
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EIA: trends in downsized engine design leading to increased demand for higher-octane gasoline

April 06, 2016

Since 2013, the share of premium gasoline in total motor gasoline sales in the US has steadily increased to 11.3% in August and September 2015—the highest share in more than a decade, according to data from the US Energy Information Administration (EIA).

This trend of increasing demand for higher octane gasoline is likely driven by changes in fuel requirements for light-duty vehicles (LDV) in response to increasing fuel economy standards, which will have widespread implications for future gasoline markets, according to EIA analysts.

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Diesel/2-methylfuran blends show higher brake thermal efficiency, higher NOx than diesel

February 22, 2016

Researchers at Wuhan University report on the first comprehensive study of the combustion and emissions performance of blends of diesel and the renewable fuel 2-methylfuran (MF) in compression-ignition engines. Their paper is published in the journal Fuel.

Among their findings were that diesel–MF blends show higher brake thermal efficiency (BTE) than pure diesel. However, diesel–MF blends also lead to higher NOx emissions than pure diesel and the NOx emissions are increased with the increase of MF fraction.

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