Green Car Congress
Home Topics Archives About Contact  RSS Headlines
Google search

GCC Web

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.]

EIA: growing octane needs widen price difference between regular and premium in US

June 22, 2017

The difference between US average retail prices for premium and regular gasoline reached $0.50/gallon in late 2016 and it has remained near that level so far in 2017. This price difference, or spread, has been generally increasing since 2000. Many factors on both the supply and demand sides are influencing this trend, according to a new brief prepared by the US Energy Information Administration (EIA).

In the US, retail gasoline is usually classified by its octane rating: regular gasoline with a typical octane rating of 87 and premium gasoline with a typical octane rating of 91 to 93. On the demand side, the premium gasoline share of total motor gasoline sales has steadily increased in recent years, reaching a high of nearly 12% in August 2016—the highest share since 2004.

More... | Comments (0)

ASTM releases new high-octane fuel standard D8067-17 to support development of more efficient engines

April 26, 2017

ASTM International recently announced the release of a new high-octane fuel standard that is expected to impact the development of gasoline products compatible with vehicles that feature high-performance fuel-efficient engines. Formation and approval of the standard was led by Dr. Robert L. McCormick, an the National Renewable Energy Laboratory (NREL) transportation research engineer.

The new standard—“Specification for 100 Research Octane Number Test Fuel for Automotive Spark-Ignition Engines” (D8067-17)—covers the requirements of a high octane number fuel suitable for spark-ignition engines to be utilized in ground vehicles that will require 100 research octane number (RON) minimum rated fuel.

More... | Comments (1)

Sugar-derived levulinic esters and cyclic ether show superior anti-knock quality to Euro95 reference gasoline

April 24, 2017

A team from The Netherlands and the US reports that the sugar-derived levulinic esters methyl levulinate (ML) and ethyl levulinate (EL) and the sugar-derived cyclic ether (furfuryl ethyl ether (FEE) demonstrate superior anti-knock quality (in 10% blends) to a reference Euro95 gasoline.

The sugar-derived ethyl tetrahydrofurfuryl ether (ETE), another cyclic ether, conversely, performed markedly worse than the reference fuel on both setups. ETE this may be a more appropriate fuel additive for compression ignition engines, the authors suggest in an open-access paper published in the journal Fuel.

More... | Comments (0)

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.

More... | Comments (4)

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.

More... | Comments (15)

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.

More... | Comments (6)

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
| Comments (0)

Green Car Congress © 2017 BioAge Group, LLC. All Rights Reserved. | Home | BioAge Group