National Library of Energy BETA

Sample records for fuel ethanol blends

  1. Ethanol-blended Fuels

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Ethanol-Blended Fuels A Study Guide and Overview of: * Ethanol's History in the U.S. and Worldwide * Ethanol Science and Technology * Engine Performance * Environmental Effects * Economics and Energy Security The Curriculum This curriculum on ethanol and its use as a fuel was developed by the Clean Fuels Development Coalition in cooperation with the Nebraska Ethanol Board. This material was developed in response to the need for instructional materials on ethanol and its effects on vehicle

  2. Alternative Fuels Data Center: Ethanol Blends

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Ethanol Blends to someone by E-mail Share Alternative Fuels Data Center: Ethanol Blends on Facebook Tweet about Alternative Fuels Data Center: Ethanol Blends on Twitter Bookmark Alternative Fuels Data Center: Ethanol Blends on Google Bookmark Alternative Fuels Data Center: Ethanol Blends on Delicious Rank Alternative Fuels Data Center: Ethanol Blends on Digg Find More places to share Alternative Fuels Data Center: Ethanol Blends on AddThis.com... More in this section... Ethanol Basics Blends E15

  3. Low-Level Ethanol Fuel Blends

    SciTech Connect (OSTI)

    Not Available

    2005-04-01

    This fact sheet addresses: (a) why Clean Cities promotes ethanol blends; (b) how these blends affect emissions; (c) fuel performance and availability; and (d) cost, incentives, and regulations.

  4. Alternative Fuels Data Center: Status Update: New Mid-Level Ethanol Blends

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Certification Path, UL Meeting, and Mid-Level Blends Testing (August 2009) New Mid-Level Ethanol Blends Certification Path, UL Meeting, and Mid-Level Blends Testing (August 2009) to someone by E-mail Share Alternative Fuels Data Center: Status Update: New Mid-Level Ethanol Blends Certification Path, UL Meeting, and Mid-Level Blends Testing (August 2009) on Facebook Tweet about Alternative Fuels Data Center: Status Update: New Mid-Level Ethanol Blends Certification Path, UL Meeting, and

  5. Emissions from ethanol-blended fossil fuel flames

    SciTech Connect (OSTI)

    Akcayoglu, Azize

    2011-01-15

    A fundamental study to investigate the emission characteristics of ethanol-blended fossil fuels is presented. Employing a heterogeneous experimental setup, emissions are measured from diffusion flames around spherical porous particles. Using an infusion pump, ethanol-fossil fuel blend is transpired into a porous sphere kept in an upward flowing air stream. A typical probe of portable digital exhaust gas analyzer is placed in and around the flame with the help of a multi-direction traversing mechanism to measure emissions such as un-burnt hydrocarbons, carbon monoxide and carbon dioxide. Since ethanol readily mixes with water, emission characteristics of ethanol-water blends are also studied. For comparison purpose, emissions from pure ethanol diffusion flames are also presented. A simplified theoretical analysis has been carried out to determine equilibrium surface temperature, composition of the fuel components in vapor-phase and heat of reaction of each blend. These theoretical predictions are used in explaining the emission characteristics of flames from ethanol blends. (author) This paper presents the results of an experimental study of flow structure in horizontal equilateral triangular ducts having double rows of half delta-wing type vortex generators mounted on the duct's slant surfaces. The test ducts have the same axial length and hydraulic diameter of 4 m and 58.3 mm, respectively. Each duct consists of double rows of half delta wing pairs arranged either in common flow-up or common flow-down configurations. Flow field measurements were performed using a Particle Image Velocimetry Technique for hydraulic diameter based Reynolds numbers in the range of 1000-8000. The secondary flow field differences generated by two different vortex generator configurations were examined in detail. The secondary flow is found stronger behind the second vortex generator pair than behind the first pair but becomes weaker far from the second pair in the case of Duct1. However

  6. NMOG Emissions Characterizations and Estimation for Vehicles Using Ethanol-Blended Fuels

    SciTech Connect (OSTI)

    Sluder, Scott; West, Brian H

    2011-10-01

    Ethanol is a biofuel commonly used in gasoline blends to displace petroleum consumption; its utilization is on the rise in the United States, spurred by the biofuel utilization mandates put in place by the Energy Independence and Security Act of 2007 (EISA). The United States Environmental Protection Agency (EPA) has the statutory responsibility to implement the EISA mandates through the promulgation of the Renewable Fuel Standard. EPA has historically mandated an emissions certification fuel specification that calls for ethanol-free fuel, except for the certification of flex-fuel vehicles. However, since the U.S. gasoline marketplace is now virtually saturated with E10, some organizations have suggested that inclusion of ethanol in emissions certification fuels would be appropriate. The test methodologies and calculations contained in the Code of Federal Regulations for gasoline-fueled vehicles have been developed with the presumption that the certification fuel does not contain ethanol; thus, a number of technical issues would require resolution before such a change could be accomplished. This report makes use of the considerable data gathered during the mid-level blends testing program to investigate one such issue: estimation of non-methane organic gas (NMOG) emissions. The data reported in this paper were gathered from over 600 cold-start Federal Test Procedure (FTP) tests conducted on 68 vehicles representing 21 models from model year 2000 to 2009. Most of the vehicles were certified to the Tier-2 emissions standard, but several older Tier-1 and national low emissions vehicle program (NLEV) vehicles were also included in the study. Exhaust speciation shows that ethanol, acetaldehyde, and formaldehyde dominate the oxygenated species emissions when ethanol is blended into the test fuel. A set of correlations were developed that are derived from the measured non-methane hydrocarbon (NMHC) emissions and the ethanol blend level in the fuel. These correlations were

  7. NMOG Emissions Characterization and Estimation for Vehicles Using Ethanol-Blended Fuels

    SciTech Connect (OSTI)

    Sluder, Scott; West, Brian H

    2012-01-01

    Ethanol is a biofuel commonly used in gasoline blends to displace petroleum consumption; its utilization is on the rise in the United States, spurred by the biofuel utilization mandates put in place by the Energy Independence and Security Act of 2007 (EISA). The United States Environmental Protection Agency (EPA) has the statutory responsibility to implement the EISA mandates through the promulgation of the Renewable Fuel Standard. EPA has historically mandated an emissions certification fuel specification that calls for ethanol-free fuel, except for the certification of flex-fuel vehicles. However, since the U.S. gasoline marketplace is now virtually saturated with E10, some organizations have suggested that inclusion of ethanol in emissions certification fuels would be appropriate. The test methodologies and calculations contained in the Code of Federal Regulations for gasoline-fueled vehicles have been developed with the presumption that the certification fuel does not contain ethanol; thus, a number of technical issues would require resolution before such a change could be accomplished. This report makes use of the considerable data gathered during the mid-level blends testing program to investigate one such issue: estimation of non-methane organic gas (NMOG) emissions. The data reported in this paper were gathered from over 600 cold-start Federal Test Procedure (FTP) tests conducted on 68 vehicles representing 21 models from model year 2000 to 2009. Most of the vehicles were certified to the Tier-2 emissions standard, but several older Tier-1 and national low emissions vehicle program (NLEV) vehicles were also included in the study. Exhaust speciation shows that ethanol, acetaldehyde, and formaldehyde dominate the oxygenated species emissions when ethanol is blended into the test fuel. A set of correlations were developed that are derived from the measured non-methane hydrocarbon (NMHC) emissions and the ethanol blend level in the fuel. These correlations were

  8. Susceptibility of Aluminum Alloys to Corrosion in Simulated Fuel Blends Containing Ethanol

    SciTech Connect (OSTI)

    Thomson, Jeffery K; Pawel, Steven J; Wilson, Dane F

    2013-01-01

    The compatibility of aluminum and aluminum alloys with synthetic fuel blends comprised of ethanol and reference fuel C (a 50/50 mix of toluene and iso-octane) was examined as a function of water content and temperature. Commercially pure wrought aluminum and several cast aluminum alloys were observed to be similarly susceptible to substantial corrosion in dry (< 50 ppm water) ethanol. Corrosion rates of all the aluminum materials examined was accelerated by increased temperature and ethanol content in the fuel mixture, but inhibited by increased water content. Pretreatments designed to stabilize passive films on aluminum increased the incubation time for onset of corrosion, suggesting film stability is a significant factor in the mechanism of corrosion.

  9. Mid-Blend Ethanol Fuels – Implementation Perspectives

    Broader source: Energy.gov [DOE]

    Breakout Session 2: Frontiers and Horizons Session 2–B: End Use and Fuel Certification Bill Woebkenberg, Fuels Technical and Regulatory Affairs Senior Engineer, Mercedes-Benz

  10. Legacy Vehicle Fuel System Testing with Intermediate Ethanol Blends

    SciTech Connect (OSTI)

    Davis, G. W.; Hoff, C. J.; Borton, Z.; Ratcliff, M. A.

    2012-03-01

    The effects of E10 and E17 on legacy fuel system components from three common mid-1990s vintage vehicle models (Ford, GM, and Toyota) were studied. The fuel systems comprised a fuel sending unit with pump, a fuel rail and integrated pressure regulator, and the fuel injectors. The fuel system components were characterized and then installed and tested in sample aging test rigs to simulate the exposure and operation of the fuel system components in an operating vehicle. The fuel injectors were cycled with varying pulse widths during pump operation. Operational performance, such as fuel flow and pressure, was monitored during the aging tests. Both of the Toyota fuel pumps demonstrated some degradation in performance during testing. Six injectors were tested in each aging rig. The Ford and GM injectors showed little change over the aging tests. Overall, based on the results of both the fuel pump testing and the fuel injector testing, no major failures were observed that could be attributed to E17 exposure. The unknown fuel component histories add a large uncertainty to the aging tests. Acquiring fuel system components from operational legacy vehicles would reduce the uncertainty.

  11. Stripping ethanol from ethanol-blended fuels for use in NO.sub.x SCR

    DOE Patents [OSTI]

    Kass, Michael Delos; Graves, Ronald Lee; Storey, John Morse Elliot; Lewis, Sr., Samuel Arthur; Sluder, Charles Scott; Thomas, John Foster

    2007-08-21

    A method to use diesel fuel alchohol micro emulsions (E-diesel) to provide a source of reductant to lower NO.sub.x emissions using selective catalytic reduction. Ethanol is stripped from the micro emulsion and entered into the exhaust gasses upstream of the reducing catalyst. The method allows diesel (and other lean-burn) engines to meet new, lower emission standards without having to carry separate fuel and reductant tanks.

  12. Experimental and Modeling Study of the Flammability of Fuel Tank Headspace Vapors from Ethanol/Gasoline Fuels; Phase 3: Effects of Winter Gasoline Volatility and Ethanol Content on Blend Flammability; Flammability Limits of Denatured Ethanol

    SciTech Connect (OSTI)

    Gardiner, D. P.; Bardon, M. F.; Clark, W.

    2011-07-01

    This study assessed differences in headspace flammability for summertime gasolines and new high-ethanol content fuel blends. The results apply to vehicle fuel tanks and underground storage tanks. Ambient temperature and fuel formulation effects on headspace vapor flammability of ethanol/gasoline blends were evaluated. Depending on the degree of tank filling, fuel type, and ambient temperature, fuel vapors in a tank can be flammable or non-flammable. Pure gasoline vapors in tanks generally are too rich to be flammable unless ambient temperatures are extremely low. High percentages of ethanol blended with gasoline can be less volatile than pure gasoline and can produce flammable headspace vapors at common ambient temperatures. The study supports refinements of fuel ethanol volatility specifications and shows potential consequences of using noncompliant fuels. E85 is flammable at low temperatures; denatured ethanol is flammable at warmer temperatures. If both are stored at the same location, one or both of the tanks' headspace vapors will be flammable over a wide range of ambient temperatures. This is relevant to allowing consumers to splash -blend ethanol and gasoline at fueling stations. Fuels compliant with ASTM volatility specifications are relatively safe, but the E85 samples tested indicate that some ethanol fuels may produce flammable vapors.

  13. Effects of High Octane Ethanol Blends on Four Legacy Flex-Fuel Vehicles, and a Turbocharged GDI Vehicle

    SciTech Connect (OSTI)

    Thomas, John F; West, Brian H; Huff, Shean P

    2015-03-01

    The U.S. Department of Energy (DOE) is supporting engine and vehicle research to investigate the potential of high-octane fuels to improve fuel economy. Ethanol has very high research octane number (RON) and heat of vaporization (HoV), properties that make it an excellent spark ignition engine fuel. The prospects of increasing both the ethanol content and the octane number of the gasoline pool has the potential to enable improved fuel economy in future vehicles with downsized, downsped engines. This report describes a small study to explore the potential performance benefits of high octane ethanol blends in the legacy fleet. There are over 17 million flex-fuel vehicles (FFVs) on the road today in the United States, vehicles capable of using any fuel from E0 to E85. If a future high-octane blend for dedicated vehicles is on the horizon, the nation is faced with the classic chicken-and-egg dilemma. If today’s FFVs can see a performance advantage with a high octane ethanol blend such as E25 or E30, then perhaps consumer demand for this fuel can serve as a bridge to future dedicated vehicles. Experiments were performed with four FFVs using a 10% ethanol fuel (E10) with 88 pump octane, and a market gasoline blended with ethanol to make a 30% by volume ethanol fuel (E30) with 94 pump octane. The research octane numbers were 92.4 for the E10 fuel and 100.7 for the E30 fuel. Two vehicles had gasoline direct injected (GDI) engines, and two featured port fuel injection (PFI). Significant wide open throttle (WOT) performance improvements were measured for three of the four FFVs, with one vehicle showing no change. Additionally, a conventional (non-FFV) vehicle with a small turbocharged direct-injected engine was tested with a regular grade of gasoline with no ethanol (E0) and a splash blend of this same fuel with 15% ethanol by volume (E15). RON was increased from 90.7 for the E0 to 97.8 for the E15 blend. Significant wide open throttle and thermal efficiency performance

  14. Improving Ethanol-Gasoline Blends by Addition of Higher Alcohols |

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Department of Energy Ethanol-Gasoline Blends by Addition of Higher Alcohols Improving Ethanol-Gasoline Blends by Addition of Higher Alcohols Mixtures of ethanol, gasoline, and higher alcohols were evaluated to determine if they offer superior performance to ethanol/gasoline blends in meeting the Renewal Fuels Standard II. deer12_ickes.pdf (1.45 MB) More Documents & Publications Vehicle Certification Test Fuel and Ethanol Flex Fuel Quality Impact of ethanol and butanol as oxygenates on

  15. Vehicle Technologies Office: Intermediate Ethanol Blends Research...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Intermediate Ethanol Blends Research and Testing Vehicle Technologies Office: Intermediate Ethanol Blends Research and Testing Ethanol can be combined with gasoline in blends ...

  16. Fuel and Fuel Additive Registration Testing of Ethanol-Diesel Blend for O2Diesel, Inc.

    SciTech Connect (OSTI)

    Fanick, E. R.

    2004-02-01

    O2 Diesel Inc. (formerly AAE Technologies Inc.) tested a heavy duty engine with O2Diesel (diesel fuel with 7.7% ethanol and additives) for regulated emissions and speciation of vapor-phase and semi-volatile hydrocarbon compounds. This testing was performed in support of EPA requirements for registering designated fuels and fuel additives as stipulated by sections 211(b) and 211(e) of the Clean Air Act.

  17. Vehicle Technologies Office: Intermediate Ethanol Blends Research and

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Testing | Department of Energy Intermediate Ethanol Blends Research and Testing Vehicle Technologies Office: Intermediate Ethanol Blends Research and Testing Ethanol can be combined with gasoline in blends ranging from E10 (10% or less ethanol, 90% gasoline) up to E85 (up to 85% ethanol, 15% gasoline), with those in-between being called "intermediate blends." The U.S. Environmental Protection Agency's Renewable Fuels Standard (under the Energy Policy Act of 2005 and the Energy

  18. Consumer Choice of E85 Denatured Ethanol Fuel Blend: Price Sensitivity and Cost of Limited Fuel Availability

    SciTech Connect (OSTI)

    Liu, Changzheng; Greene, David

    2014-12-01

    The promotion of greater use of E85, a fuel blend of 85% denatured ethanol, by flex-fuel vehicle owners is an important means of complying with the Renewable Fuel Standard 2. A good understanding of factors affecting E85 demand is necessary for effective policies that promote E85 and for developing models that forecast E85 sales in the United States. In this paper, the sensitivity of aggregate E85 demand to E85 and gasoline prices is estimated, as is the relative availability of E85 versus gasoline. The econometric analysis uses recent data from Minnesota, North Dakota, and Iowa. The more recent data allow a better estimate of nonfleet demand and indicate that the market price elasticity of E85 choice is substantially higher than previously estimated.

  19. Consumer Choice of E85 Denatured Ethanol Fuel Blend: Price Sensitivity and Cost of Limited Fuel Availability

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Liu, Changzheng; Greene, David

    2014-12-01

    The promotion of greater use of E85, a fuel blend of 85% denatured ethanol, by flex-fuel vehicle owners is an important means of complying with the Renewable Fuel Standard 2. A good understanding of factors affecting E85 demand is necessary for effective policies that promote E85 and for developing models that forecast E85 sales in the United States. In this paper, the sensitivity of aggregate E85 demand to E85 and gasoline prices is estimated, as is the relative availability of E85 versus gasoline. The econometric analysis uses recent data from Minnesota, North Dakota, and Iowa. The more recent data allowmore » a better estimate of nonfleet demand and indicate that the market price elasticity of E85 choice is substantially higher than previously estimated.« less

  20. Methanol/ethanol/gasoline blend-fuels demonstration with stratified-charge-engine vehicles: Consultant report. Final report

    SciTech Connect (OSTI)

    Pefley, R.; Adelman, H.; Suga, T.

    1980-03-01

    Four 1978 Honda CVCC vehicles have been in regular use by California Energy Commission staff in Sacramento for 12 months. Three of the unmodified vehicles were fueled with alcohol/gasoline blends (5% methanol, 10% methanol, and 10% ethanol) with the fourth remaining on gasoline as a control. The operators did not know which fuels were in the vehicles. At 90-day intervals the cars were returned to the Univerity of Santa Clara for servicing and for emissions and fuel economy testing in accordance with the Federal Test Procedures. The demonstration and testing have established the following: (1) the tested blends cause no significant degradation in exhaust emissions, fuel economy, and driveability; (2) the tested blends cause significant increases in evaporative emissions; (3) analysis of periodic oil samples shows no evidence of accelerated metal wear; and (4) higher than 10% alcohols will require substantial modification to most existing California motor vehicles for acceptable emissions, performance, and fuel economy. Many aspects of using methanol and ethanol fuels, both straight and in blends, in various engine technologies are discussed.

  1. Ethanol Fuel Basics | Department of Energy

    Broader source: Energy.gov (indexed) [DOE]

    More than 95% of U.S. gasoline contains ethanol in a low-level blend to oxygenate the fuel and reduce air pollution. Ethanol is also increasingly available in a high-level blend ...

  2. EffectsIntermediateEthanolBlends.pdf | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    EffectsIntermediateEthanolBlends.pdf EffectsIntermediateEthanolBlends.pdf EffectsIntermediateEthanolBlends.pdf EffectsIntermediateEthanolBlends.pdf (1.43 MB) More Documents & Publications Effects of Intermediate Ethanol Blends on Legacy Vehicles and Small Non-Road Engines, Report 1 … Updated Feb 2009 Mid-Level Ethanol Blends Test Program Mid-Level Ethanol Blends

  3. Compatibility Study for Plastic, Elastomeric, and Metallic Fueling Infrastructure Materials Exposed to Aggressive Formulations of Ethanol-blended Gasoline

    SciTech Connect (OSTI)

    Kass, Michael D; Pawel, Steven J; Theiss, Timothy J; Janke, Christopher James

    2012-07-01

    In 2008 Oak Ridge National Laboratory began a series of experiments to evaluate the compatibility of fueling infrastructure materials with intermediate levels of ethanol-blended gasoline. Initially, the focus was elastomers, metals, and sealants, and the test fuels were Fuel C, CE10a, CE17a and CE25a. The results of these studies were published in 2010. Follow-on studies were performed with an emphasis on plastic (thermoplastic and thermoset) materials used in underground storage and dispenser systems. These materials were exposed to test fuels of Fuel C and CE25a. Upon completion of this effort, it was felt that additional compatibility data with higher ethanol blends was needed and another round of experimentation was performed on elastomers, metals, and plastics with CE50a and CE85a test fuels. Compatibility of polymers typically relates to the solubility of the solid polymer with a solvent. It can also mean susceptibility to chemical attack, but the polymers and test fuels evaluated in this study are not considered to be chemically reactive with each other. Solubility in polymers is typically assessed by measuring the volume swell of the polymer exposed to the solvent of interest. Elastomers are a class of polymers that are predominantly used as seals, and most o-ring and seal manufacturers provide compatibility tables of their products with various solvents including ethanol, toluene, and isooctane, which are components of aggressive oxygenated gasoline as described by the Society of Automotive Engineers (SAE) J1681. These tables include a ranking based on the level of volume swell in the elastomer associated with exposure to a particular solvent. Swell is usually accompanied by a decrease in hardness (softening) that also affects performance. For seal applications, shrinkage of the elastomer upon drying is also a critical parameter since a contraction of volume can conceivably enable leakage to occur. Shrinkage is also indicative of the removal of one or more

  4. New Analysis Methods Estimate a Critical Property of Ethanol Fuel Blends (Fact Sheet), Highlights in Research & Development, NREL (National Renewable Energy Laboratory)

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Methods developed at NREL disclose the impact of ethanol on gasoline blend heat of vaporization with potential for improved efficiency of spark-ignition engines. More stringent standards for fuel economy, regulation of greenhouse gas emissions, and the mandated increase in the use of renew- able fuel are driving research to improve the efficiency of spark ignition engines. When fuel properties such as octane number and evaporative cooling (heat of vaporization or HOV) are insufficient, they

  5. Intermediate Ethanol Blends Catalyst Durability Program

    SciTech Connect (OSTI)

    West, Brian H; Sluder, Scott; Knoll, Keith; Orban, John; Feng, Jingyu

    2012-02-01

    In the summer of 2007, the U.S. Department of Energy (DOE) initiated a test program to evaluate the potential impacts of intermediate ethanol blends (also known as mid-level blends) on legacy vehicles and other engines. The purpose of the test program was to develop information important to assessing the viability of using intermediate blends as a contributor to meeting national goals for the use of renewable fuels. Through a wide range of experimental activities, DOE is evaluating the effects of E15 and E20 - gasoline blended with 15% and 20% ethanol - on tailpipe and evaporative emissions, catalyst and engine durability, vehicle driveability, engine operability, and vehicle and engine materials. This report provides the results of the catalyst durability study, a substantial part of the overall test program. Results from additional projects will be reported separately. The principal purpose of the catalyst durability study was to investigate the effects of adding up to 20% ethanol to gasoline on the durability of catalysts and other aspects of the emissions control systems of vehicles. Section 1 provides further information about the purpose and context of the study. Section 2 describes the experimental approach for the test program, including vehicle selection, aging and emissions test cycle, fuel selection, and data handling and analysis. Section 3 summarizes the effects of the ethanol blends on emissions and fuel economy of the test vehicles. Section 4 summarizes notable unscheduled maintenance and testing issues experienced during the program. The appendixes provide additional detail about the statistical models used in the analysis, detailed statistical analyses, and detailed vehicle specifications.

  6. Mid-Level Ethanol Blends

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Mid-Level Ethanol Blends Test Program DOE, NREL, and ORNL Team Presented by Keith Knoll Work supported by DOE/EERE Vehicle Technologies Program Annual Merit Review and Peer Evaluation meeting May 19, 2009 Kevin Stork Vehicle Technologies Program Shab Fardanesh and Joan Glickman Office of the Biomass Program This presentation does not contain any proprietary or classified information Project ID: ft_05_knoll Collaborators Kevin Stork DOE OVT Shab Fardanesh DOE OBP Joan Glickman DOE OBP Wendy Clark

  7. Effects of intermediate ethanol blends on legacy vehicles and small non-road engines, report 1

    SciTech Connect (OSTI)

    West, Brian; Knoll, Keith; Clark, Wendy; Graves, Ronald; Orban, John; Przesmitzki, Steve; Theiss, Timothy

    2008-10-01

    Report on the test program to assess the viability of using intermediate ethanol blends as a contributor to meeting national goals in the use of renewable fuels.

  8. Impact of Ethanol Blending on U.S. Gasoline Prices

    SciTech Connect (OSTI)

    Not Available

    2008-11-01

    This study assesses the impact of ethanol blending on gasoline prices in the US today and the potential impact of ethanol on gasoline prices at higher blending concentrations.

  9. Effects of Intermediate Ethanol Blends on Legacy Vehicles and...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Effects of Intermediate Ethanol Blends on Legacy Vehicles and Small Non-Road Engines, Report 1 Updated Feb 2009 Effects of Intermediate Ethanol Blends on Legacy Vehicles and ...

  10. Alternative Fuels Data Center: Ethanol Fuel Basics

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Fuel Basics to someone by E-mail Share Alternative Fuels Data Center: Ethanol Fuel Basics on Facebook Tweet about Alternative Fuels Data Center: Ethanol Fuel Basics on Twitter Bookmark Alternative Fuels Data Center: Ethanol Fuel Basics on Google Bookmark Alternative Fuels Data Center: Ethanol Fuel Basics on Delicious Rank Alternative Fuels Data Center: Ethanol Fuel Basics on Digg Find More places to share Alternative Fuels Data Center: Ethanol Fuel Basics on AddThis.com... More in this

  11. Alternative Fuels Data Center: Ethanol Fueling Stations

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Fueling Stations to someone by E-mail Share Alternative Fuels Data Center: Ethanol Fueling Stations on Facebook Tweet about Alternative Fuels Data Center: Ethanol Fueling Stations on Twitter Bookmark Alternative Fuels Data Center: Ethanol Fueling Stations on Google Bookmark Alternative Fuels Data Center: Ethanol Fueling Stations on Delicious Rank Alternative Fuels Data Center: Ethanol Fueling Stations on Digg Find More places to share Alternative Fuels Data Center: Ethanol Fueling Stations on

  12. Preliminary Compatibility Assessment of Metallic Dispenser Materials for Service in Ethanol Fuel Blends

    SciTech Connect (OSTI)

    Pawel, Steven J; Kass, Michael D; Janke, Christopher James

    2009-11-01

    The compatibility of selected metals representative of those commonly used in dispensing systems was evaluated in an aggressive E20 formulation (CE20a) and in synthetic gasoline (Reference Fuel C) in identical testing to facilitate comparison of results. The testing was performed at modestly elevated temperature (nominally 60 C) and with constant fluid flow in an effort to accelerate potential interactions in the screening test. Based on weight change, the general corrosion of all individual coupons exposed in the vapor phase above Reference Fuel C and CE20a as well as all coupons immersed in Reference Fuel C was essentially nil (<0.3 {micro}m/y), with no evidence of localized corrosion such as pitting/crevice corrosion or selective leaching at any location. Modest discoloration was observed on the copper-based alloys (cartridge brass and phosphor bronze), but the associated corrosion films were quite thin and apparently protective. For coupons immersed in CE20a, four different materials exhibited net weight loss over the entire course of the experiment: cartridge brass, phosphor bronze, galvanized steel, and terne-plated steel. None of these exhibited substantial incompatibility with the test fluid, with the largest general corrosion rate calculated from coupon weight loss to be approximately 4 {micro}m/y for the cartridge brass specimens. Selective leaching of zinc (from brass) and tin (from bronze) was observed, as well as the presence of sulfide surface films rich in these elements, suggesting the importance of the role of sulfuric acid in the CE20a formulation. Analysis of weight loss data for the slightly corroded metals indicated that the corrosivity of the test environment decreased with exposure time for brass and bronze and increased for galvanized and terne-plated steel. Other materials immersed in CE20a - type 1020 mild steel, type 1100 aluminum, type 201 nickel, and type 304 stainless steel - each appeared essentially immune to corrosion at the test

  13. Alternative Fuels Data Center: Ethanol

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Ethanol Printable Version Share this resource Send a link to Alternative Fuels Data Center: Ethanol to someone by E-mail Share Alternative Fuels Data Center: Ethanol on Facebook Tweet about Alternative Fuels Data Center: Ethanol on Twitter Bookmark Alternative Fuels Data Center: Ethanol on Google Bookmark Alternative Fuels Data Center: Ethanol on Delicious Rank Alternative Fuels Data Center: Ethanol on Digg Find More places to share Alternative Fuels Data Center: Ethanol on AddThis.com... More

  14. Mid-Level Ethanol Blends Test Program | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Mid-Level Ethanol Blends Test Program Mid-Level Ethanol Blends Test Program 2010 DOE Vehicle Technologies and Hydrogen Programs Annual Merit Review and Peer Evaluation Meeting, June 7-11, 2010 -- Washington D.C. ft005_west_2010_o.pdf (1.76 MB) More Documents & Publications Mid-Level Ethanol Blends Effects of Intermediate Ethanol Blends on Legacy Vehicles and Small Non-Road Engines, Report 1 … Updated Feb 2009 EffectsIntermediateEthanolBlends.pdf

  15. Well-to-Wheels Greenhouse Gas Emissions Analysis of High-Octane Fuels with Various Market Shares and Ethanol Blending Levels

    SciTech Connect (OSTI)

    Han, Jeongwoo; Elgowainy, Amgad; Wang, Michael; Divita, Vincent

    2015-07-14

    In this study, we evaluated the impacts of producing HOF with a RON of 100, using a range of ethanol blending levels (E10, E25, and E40), vehicle efficiency gains, and HOF market penetration scenarios (3.4% to 70%), on WTW petroleum use and GHG emissions. In particular, we conducted LP modeling of petroleum refineries to examine the impacts of different HOF production scenarios on petroleum refining energy use and GHG emissions. We compared two cases of HOF vehicle fuel economy gains of 5% and 10% in terms of MPGGE to baseline regular gasoline vehicles. We incorporated three key factors in GREET — (1) refining energy intensities of gasoline components for the various ethanol blending options and market shares, (2) vehicle efficiency gains, and (3) upstream energy use and emissions associated with the production of different crude types and ethanol — to compare the WTW GHG emissions of various HOF/vehicle scenarios with the business-as-usual baseline regular gasoline (87 AKI E10) pathway.

  16. Experimental and Modeling Study of the Flammability of Fuel Tank Headspace Vapors from Ethanol/Gasoline Fuels, Phase 2: Evaluations of Field Samples and Laboratory Blends

    SciTech Connect (OSTI)

    Gardiner, D. P.; Bardon, M. F.; LaViolette, M.

    2010-04-01

    Study to measure the flammability of gasoline/ethanol fuel vapors at low ambient temperatures and develop a mathematical model to predict temperatures at which flammable vapors were likely to form.

  17. Experiences from Introduction of Ethanol Buses and Ethanol Fuel...

    Open Energy Info (EERE)

    of Ethanol Buses and Ethanol Fuel Station Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Experiences from Introduction of Ethanol Buses and Ethanol Fuel Station Agency...

  18. Fact Sheet: Effects of Intermediate Ethanol Blends | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Fact Sheet: Effects of Intermediate Ethanol Blends Fact Sheet: Effects of Intermediate Ethanol Blends October 7, 2008 - 4:14pm Addthis In August 2007, the U.S. Department of Energy (DOE) initiated a test program to assess the potential impacts of higher intermediate ethanol blends on conventional vehicles and other engines that rely on gasoline. The test program focuses specifically on the effects of intermediate blends of E15 and E20-gasoline blended with 15 and 20 percent ethanol,

  19. Investigation of Knock limited Compression Ratio of Ethanol Gasoline Blends

    SciTech Connect (OSTI)

    Szybist, James P; Youngquist, Adam D; Wagner, Robert M; Moore, Wayne; Foster, Matthew; Confer, Keith

    2010-01-01

    Ethanol offers significant potential for increasing the compression ratio of SI engines resulting from its high octane number and high latent heat of vaporization. A study was conducted to determine the knock limited compression ratio of ethanol gasoline blends to identify the potential for improved operating efficiency. To operate an SI engine in a flex fuel vehicle requires operating strategies that allow operation on a broad range of fuels from gasoline to E85. Since gasoline or low ethanol blend operation is inherently limited by knock at high loads, strategies must be identified which allow operation on these fuels with minimal fuel economy or power density tradeoffs. A single cylinder direct injection spark ignited engine with fully variable hydraulic valve actuation (HVA) is operated at WOT conditions to determine the knock limited compression ratio (CR) of ethanol fuel blends. The geometric compression ratio is varied by changing pistons, producing CR from 9.2 to 13.66. The effective CR is varied using an electro-hydraulic valvetrain that changed the effective trapped displacement using both Early Intake Valve Closing (EIVC) and Late Intake Valve Closing (LIVC). The EIVC and LIVC strategies result in effective CR being reduced while maintaining the geometric expansion ratio. It was found that at substantially similar engine conditions, increasing the ethanol content of the fuel results in higher engine efficiency and higher engine power. These can be partially attributed to a charge cooling effect and a higher heating valve of a stoichiometric mixture for ethanol blends (per unit mass of air). Additional thermodynamic effects on and a mole multiplier are also explored. It was also found that high CR can increase the efficiency of ethanol fuel blends, and as a result, the fuel economy penalty associated with the lower energy content of E85 can be reduced by about a third. Such operation necessitates that the engine be operated in a de-rated manner for

  20. Emissions from ethanol and LPG fueled vehicles

    SciTech Connect (OSTI)

    Pitstick, M.E.

    1992-01-01

    This paper addresses the environmental concerns of using neat ethanol and liquified petroleum gas (LPG) as transportation fuels in the US Low-level blends of ethanol (10%) with gasoline have been used as fuels in the US for more than a decade, but neat ethanol (85% or more) has only been used extensively in Brazil. LPG, which consists mostly of propane, is already used extensively as a vehicle fuel in the US, but its use has been limited primarily to converted fleet vehicles. Increasing US interest in alternative fuels has raised the possibility of introducing neat ethanol vehicles into the market and expanding the number of LPG vehicles. Use of such vehicles and increased production and consumption of fuel ethanol and LPG will undoubtedly have environmental impacts. If the impacts are determined to be severe, they could act as barriers to the introduction of neat ethanol and LPG vehicles. Environmental concerns include exhaust and evaporative emissions and their impact on ozone formation and global warming, toxic emissions from fuel combustion and evaporation, and agricultural emissions from production of ethanol. The paper is not intended to be judgmental regarding the overall attractiveness of ethanol or LPG compared to other transportation fuels. The environmental concerns are reviewed and summarized, but the only conclusion reached is that there is no single concern that is likely to prevent the introduction of neat ethanol fueled vehicles or the increase in LPG fueled vehicles.

  1. Emissions from ethanol and LPG fueled vehicles

    SciTech Connect (OSTI)

    Pitstick, M.E.

    1992-12-31

    This paper addresses the environmental concerns of using neat ethanol and liquified petroleum gas (LPG) as transportation fuels in the US Low-level blends of ethanol (10%) with gasoline have been used as fuels in the US for more than a decade, but neat ethanol (85% or more) has only been used extensively in Brazil. LPG, which consists mostly of propane, is already used extensively as a vehicle fuel in the US, but its use has been limited primarily to converted fleet vehicles. Increasing US interest in alternative fuels has raised the possibility of introducing neat ethanol vehicles into the market and expanding the number of LPG vehicles. Use of such vehicles and increased production and consumption of fuel ethanol and LPG will undoubtedly have environmental impacts. If the impacts are determined to be severe, they could act as barriers to the introduction of neat ethanol and LPG vehicles. Environmental concerns include exhaust and evaporative emissions and their impact on ozone formation and global warming, toxic emissions from fuel combustion and evaporation, and agricultural emissions from production of ethanol. The paper is not intended to be judgmental regarding the overall attractiveness of ethanol or LPG compared to other transportation fuels. The environmental concerns are reviewed and summarized, but the only conclusion reached is that there is no single concern that is likely to prevent the introduction of neat ethanol fueled vehicles or the increase in LPG fueled vehicles.

  2. Mid-Level Ethanol Blends | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Mid-Level Ethanol Blends Mid-Level Ethanol Blends 2009 DOE Hydrogen Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting, May 18-22, 2009 -- Washington D.C. ft_05_knoll.pdf (1.74 MB) More Documents & Publications Mid-Level Ethanol Blends Test Program Biofuels Quality Surveys Effects of Intermediate Ethanol Blends on Legacy Vehicles and Small Non-Road Engines, Report 1 … Updated Feb 2009

  3. Knock-limited performance of ethanol blends in a spark-ignition engine

    SciTech Connect (OSTI)

    Ferfecki, F.J.; Sorenson, S.C.

    1981-01-01

    An experimental study was performed to determine the effect of varying percentages of ethanol in fuel using a CFR engine operated at knock-limited compression ratio and maximum power spark timing. Blends of 85 octane primary reference fuel and ethanol in concentrations between 10 and 25% by volume were tested for performance, fuel economy, and exhaust emissions. The results indicated that when the engine was operated at knock-limited conditions at a constant equivalence ratio, the use of ethanol resulted in a reduction in petroleum fuel usage of 10% greater than the volumetric percentage of the ethanol used in the blend. These results were independent of the amount of ethanol used in the blend. Under these conditions, as the ethanol concentration was increased, BMEP and BSHC increased, BSNO and BSCO remained essentially constant, and exhaust temperature decreased.

  4. Alternative Fuels Data Center: Biodiesel Blends

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Blends to someone by E-mail Share Alternative Fuels Data Center: Biodiesel Blends on Facebook Tweet about Alternative Fuels Data Center: Biodiesel Blends on Twitter Bookmark Alternative Fuels Data Center: Biodiesel Blends on Google Bookmark Alternative Fuels Data Center: Biodiesel Blends on Delicious Rank Alternative Fuels Data Center: Biodiesel Blends on Digg Find More places to share Alternative Fuels Data Center: Biodiesel Blends on AddThis.com... More in this section... Biodiesel Basics

  5. JV Task 112-Optimal Ethanol Blend-Level Investigation

    SciTech Connect (OSTI)

    Richard Shockey; Ted Aulich; Bruce Jones; Gary Mead; Paul Steevens

    2008-01-31

    Highway Fuel Economy Test (HWFET) and Federal Test Procedure 75 (FTP-75) tests were conducted on four 2007 model vehicles; a Chevrolet Impala flex-fuel and three non-flex-fuel vehicles: a Ford Fusion, a Toyota Camry, and a Chevrolet Impala. This investigation utilized a range of undenatured ethanol/Tier II gasoline blend levels from 0% to 85%. HWFET testing on ethanol blend levels of E20 in the flex fuel Chevrolet Impala and E30 in the non-flex-fuel Ford Fusion and Toyota Camry resulted in miles-per-gallon (mpg) fuel economy greater than Tier 2 gasoline, while E40 in the non-flex-fuel Chevrolet Impala resulted in an optimum mpg based on per-gallon fuel Btu content. Exhaust emission values for non-methane organic gases (NMOG), carbon monoxide (CO), and nitrogen oxides (NO{sub x}) obtained from both the FTP-75 and the HWFET driving cycles were at or below EPA Tier II, Light-Duty Vehicles, Bin 5 levels for all vehicles tested with one exception. The flex-fuel Chevrolet Impala exceeded the NMOG standard for the FTP-75 on E-20 and Tier II gasoline.

  6. Table B1. Pipe Manufacturer Compatibility with Ethanol Blends

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    B1. Pipe Manufacturer Compatibility with Ethanol Blends Manufacturer Product Model Ethanol Compatibility Piping-All Companies have UL 971 listing for E100 Advantage Earth Products Piping 1.5", 2", 3", 4" E0-E100 Brugg Piping FLEXWELL-HL, SECON-X, NITROFLEX, LPG E0-E100 Franklin Fueling Piping Franklin has third-party certified piping compatible with up to E85. Contact manufacturer for specific part numbers. E0-E85 OPW Piping FlexWorks, KPS, Pisces (discontinued) E0-E100 NOV

  7. Chief Ethanol Fuels Inc | Open Energy Information

    Open Energy Info (EERE)

    Fuels Inc Jump to: navigation, search Name: Chief Ethanol Fuels Inc Place: Hastings, Nebraska Product: Ethanol producer and supplier References: Chief Ethanol Fuels Inc1 This...

  8. Alternative Fuels Data Center: Ethanol Fueling Infrastructure Development

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Infrastructure Development to someone by E-mail Share Alternative Fuels Data Center: Ethanol Fueling Infrastructure Development on Facebook Tweet about Alternative Fuels Data Center: Ethanol Fueling Infrastructure Development on Twitter Bookmark Alternative Fuels Data Center: Ethanol Fueling Infrastructure Development on Google Bookmark Alternative Fuels Data Center: Ethanol Fueling Infrastructure Development on Delicious Rank Alternative Fuels Data Center: Ethanol Fueling Infrastructure

  9. Effects of Intermediate Ethanol Blends on Legacy Vehicles and...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    117 Effects of Intermediate Ethanol Blends on Legacy Vehicles and Small Non-Road Engines, Report 1 - Updated February 2009 Prepared by Keith Knoll Brian West Wendy Clark...

  10. Algenol Announces Commercial Algal Ethanol Fuel Partnership

    Broader source: Energy.gov [DOE]

    U.S. Department of Energy’s Bioenergy Technologies Office (BETO) partner Algenol signed an agreement with Protec Fuel to market and distribute commercial ethanol produced from algae for fleets and retail consumption from Algenol’s commercial demonstration module in Fort Myers, Florida. Algenol expects that the first two gas stations offering the fuel will open next year in Tampa and Orlando. The companies will distribute both E15 and E85 blends of ethanol that Algenol will produce at its future full-scale commercial plant upon completion in 2017.

  11. Ethanol fuel modification for highway vehicle use. Final report

    SciTech Connect (OSTI)

    Not Available

    1980-01-01

    A number of problems that might occur if ethanol were used as a blending stock or replacement for gasoline in present cars are identified and characterized as to the probability of occurrence. The severity of their consequences is contrasted to those found with methanol in a previous contract study. Possibilities for correcting several problems are reported. Some problems are responsive to fuel modifications but others require or are better dealt with by modification of vehicles and the bulk fuel distribution system. In general, problems with ethanol in blends with gasoline were found to be less severe than those with methanol. Phase separation on exposure to water appears to be the major problem with ethanol/gasoline blends. Another potentially serious problem with blends is the illict recovery of ethanol for beverage usage, or bootlegging, which might be discouraged by the use of select denaturants. Ethanol blends have somewhat greater tendency to vapor lock than base gasoline but less than methanol blends. Gasoline engines would require modification to operate on fuels consisting mostly of ethanol. If such modifications were made, cold starting would still be a major problem, more difficult with ethanol than methanol. Startability can be provided by adding gasoline or light hydrocarbons. Addition of gasoline also reduces the explosibility of ethanol vapor and furthermore acts as denaturant.

  12. The Impact of Low Octane Hydrocarbon Blending Streams on Ethanol Engine Optimization

    SciTech Connect (OSTI)

    Szybist, James P; West, Brian H

    2013-01-01

    Ethanol is a very attractive fuel from an end-use perspective because it has a high chemical octane number and a high latent heat of vaporization. When an engine is optimized to take advantage of these fuel properties, both efficiency and power can be increased through higher compression ratio, direct fuel injection, higher levels of boost, and a reduced need for enrichment to mitigate knock or protect the engine and aftertreatment system from overheating. The ASTM D5798 specification for high level ethanol blends, commonly called E85, underwent a major revision in 2011. The minimum ethanol content was revised downward from 68 vol% to 51 vol%, which combined with the use of low octane blending streams such as natural gasoline introduces the possibility of a lower octane E85 fuel. While this fuel is suitable for current ethanol tolerant flex fuel vehicles, this study experimentally examines whether engines can still be aggressively optimized for the resultant fuel from the revised ASTM D5798 specification. The performance of six ethanol fuel blends, ranging from 51-85% ethanol, is compared to a premium-grade certification gasoline (UTG-96) in a single-cylinder direct-injection (DI) engine with a compression ratio of 12.9:1 at knock-prone engine conditions. UTG-96 (RON = 96.1), light straight run gasoline (RON = 63.6), and n-heptane (RON = 0) are used as the hydrocarbon blending streams for the ethanol-containing fuels in an effort to establish a broad range of knock resistance for high ethanol fuels. Results show that nearly all ethanol-containing fuels are more resistant to engine knock than UTG-96 (the only exception being the ethanol blend with 49% n-heptane). This knock resistance allows ethanol blends made with 33 and 49% light straight run gasoline, and 33% n-heptane to be operated at significantly more advanced combustion phasing for higher efficiency, as well as at higher engine loads. While experimental results show that the octane number of the hydrocarbon

  13. Chief Ethanol Fuels | Open Energy Information

    Open Energy Info (EERE)

    Fuels Jump to: navigation, search Name: Chief Ethanol Fuels Place: Hastings, NE Website: www.chiefethanolfuels.com References: Chief Ethanol Fuels1 Information About Partnership...

  14. Vehicle Certification Test Fuel and Ethanol Flex Fuel Quality...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Vehicle Certification Test Fuel and Ethanol Flex Fuel Quality Vehicle Certification Test Fuel and Ethanol Flex Fuel Quality Breakout Session 2: Frontiers and Horizons Session 2-B: ...

  15. Alternative Fuels Data Center: Ethanol Flexible Fuel Vehicle Conversions

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Ethanol Flexible Fuel Vehicle Conversions to someone by E-mail Share Alternative Fuels Data Center: Ethanol Flexible Fuel Vehicle Conversions on Facebook Tweet about Alternative Fuels Data Center: Ethanol Flexible Fuel Vehicle Conversions on Twitter Bookmark Alternative Fuels Data Center: Ethanol Flexible Fuel Vehicle Conversions on Google Bookmark Alternative Fuels Data Center: Ethanol Flexible Fuel Vehicle Conversions on Delicious Rank Alternative Fuels Data Center: Ethanol Flexible Fuel

  16. Alternative Fuels Data Center: Ethanol Vehicle Emissions

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Ethanol Vehicle Emissions to someone by E-mail Share Alternative Fuels Data Center: Ethanol Vehicle Emissions on Facebook Tweet about Alternative Fuels Data Center: Ethanol Vehicle Emissions on Twitter Bookmark Alternative Fuels Data Center: Ethanol Vehicle Emissions on Google Bookmark Alternative Fuels Data Center: Ethanol Vehicle Emissions on Delicious Rank Alternative Fuels Data Center: Ethanol Vehicle Emissions on Digg Find More places to share Alternative Fuels Data Center: Ethanol Vehicle

  17. Alternative Fuels Data Center: Ethanol Related Links

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Ethanol Printable Version Share this resource Send a link to Alternative Fuels Data Center: Ethanol Related Links to someone by E-mail Share Alternative Fuels Data Center: Ethanol Related Links on Facebook Tweet about Alternative Fuels Data Center: Ethanol Related Links on Twitter Bookmark Alternative Fuels Data Center: Ethanol Related Links on Google Bookmark Alternative Fuels Data Center: Ethanol Related Links on Delicious Rank Alternative Fuels Data Center: Ethanol Related Links on Digg Find

  18. Low and intermediate temperature oxidation of ethanol and ethanol-PRF blends: An experimental and modeling study

    SciTech Connect (OSTI)

    Haas, Francis M.; Chaos, Marcos; Dryer, Frederick L.

    2009-12-15

    In this brief communication, we present new experimental species profile measurements for the low and intermediate temperature oxidation of ethanol under knock-prone conditions. These experiments show that ethanol exhibits no global low temperature reactivity at these conditions, although we note the heterogeneous decomposition of ethanol to ethylene and water. Similar behavior is reported for an E85 blend in n-heptane. Kinetic modeling results are presented to complement these experiments and elucidate the interaction of ethanol and primary reference fuels undergoing cooxidation. (author)

  19. Fact #588: September 14, 2009 Fuel Economy Changes Due to Ethanol Content

    Broader source: Energy.gov [DOE]

    The fuel economy of a vehicle is dependent on many things, one of which is the fuel used in the vehicle. Two National Laboratories recently studied the effects that ethanol blends have on the fuel...

  20. Fuel Ethanol Oxygenate Production

    Gasoline and Diesel Fuel Update (EIA)

    Product: Fuel Ethanol Methyl Tertiary Butyl Ether Merchant Plants Captive Plants Period-Unit: Monthly-Thousand Barrels Monthly-Thousand Barrels per Day Annual-Thousand Barrels Annual-Thousand Barrels per Day Download Series History Download Series History Definitions, Sources & Notes Definitions, Sources & Notes Show Data By: Product Area Jan-16 Feb-16 Mar-16 Apr-16 May-16 Jun-16 View History U.S. 30,319 28,678 30,812 28,059 30,228 30,258 1981-2016 East Coast (PADD 1) 641 698 804 725 734

  1. Alternative Fuels Data Center: Ethanol Feedstocks

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Feedstocks to someone by E-mail Share Alternative Fuels Data Center: Ethanol Feedstocks on Facebook Tweet about Alternative Fuels Data Center: Ethanol Feedstocks on Twitter Bookmark Alternative Fuels Data Center: Ethanol Feedstocks on Google Bookmark Alternative Fuels Data Center: Ethanol Feedstocks on Delicious Rank Alternative Fuels Data Center: Ethanol Feedstocks on Digg Find More places to share Alternative Fuels Data Center: Ethanol Feedstocks on AddThis.com... More in this section...

  2. Alternative Fuels Data Center: Ethanol Production

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Production to someone by E-mail Share Alternative Fuels Data Center: Ethanol Production on Facebook Tweet about Alternative Fuels Data Center: Ethanol Production on Twitter Bookmark Alternative Fuels Data Center: Ethanol Production on Google Bookmark Alternative Fuels Data Center: Ethanol Production on Delicious Rank Alternative Fuels Data Center: Ethanol Production on Digg Find More places to share Alternative Fuels Data Center: Ethanol Production on AddThis.com... More in this section...

  3. Platte Valley Fuel Ethanol | Open Energy Information

    Open Energy Info (EERE)

    Valley Fuel Ethanol Jump to: navigation, search Name: Platte Valley Fuel Ethanol Place: Central City, Nebraska Product: Bioethanol producer using corn as feedstock References:...

  4. Alternative Fuels Data Center: Ethanol Fueling Station Locations

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Station Locations to someone by E-mail Share Alternative Fuels Data Center: Ethanol Fueling Station Locations on Facebook Tweet about Alternative Fuels Data Center: Ethanol Fueling Station Locations on Twitter Bookmark Alternative Fuels Data Center: Ethanol Fueling Station Locations on Google Bookmark Alternative Fuels Data Center: Ethanol Fueling Station Locations on Delicious Rank Alternative Fuels Data Center: Ethanol Fueling Station Locations on Digg Find More places to share Alternative

  5. Effects of Intermediate Ethanol Blends on Legacy Vehicles and Small Non-Road Engines, Report 1

    SciTech Connect (OSTI)

    Knoll, Keith; West, Brian; Clark, Wendy; Graves, Ronald; Orban, John; Przesmitzki, Steve; Theiss, Timothy

    2009-02-01

    This report (February 2009) is an update of the original version, which was published in October 2008. This report is the result of the U.S. Department of Energy's test program to evaluate the potential impacts of intermediate ethanol blends on legacy vehicles and other engines. The purpose of the test program is to assess the viability of using intermediate blends as a contributor to meeting national goals in the use of renewable fuels.

  6. Experimental and Modeling Study of the Flammability of Fuel Tank Headspace Vapors from High Ethanol Content Fuels

    SciTech Connect (OSTI)

    Gardiner, D.; Bardon, M.; Pucher, G.

    2008-10-01

    Study determined the flammability of fuel tank headspace vapors as a function of ambient temperature for seven E85 fuel blends, two types of gasoline, and denatured ethanol at a low tank fill level.

  7. Emissions from ethanol- and LPG-fueled vehicles

    SciTech Connect (OSTI)

    Pitstick, M.E.

    1995-06-01

    This paper addresses the environmental concerns of using neat ethanol and liquefied petroleum gas (LPG) as transportation fuels in the United States. Low-level blends of ethanol (10%) with gasoline have been used as fuels in the United States for more than a decade, but neat ethanol (85% or more) has only been used extensively in Brazil. LPG, which consists mostly of propane, is already used extensively as a vehicle fuel in the United States, but its use has been limited primarily to converted fleet vehicles. Increasing U.S. interest in alternative fuels has raised the possibility of introducing neat-ethanol vehicles into the market and expanding the number of LPG vehicles. Use of such vehicles, and increased production and consumption of fuel ethanol and LPG, will undoubtedly have environmental impacts. If the impacts are determined to be severe, they could act as barriers to the introduction of neat-ethanol and LPG vehicles. Environmental concerns include exhaust and evaporative emissions and their impact on ozone formation and global warming, toxic emissions from fuel combustion and evaporation, and agricultural impacts from production of ethanol. The paper is not intended to be judgmental regarding the overall attractiveness of ethanol or LPG as compared with other transportation fuels. The environmental concerns are reviewed and summarized, but only conclusion reached is that there is no single concern that is likely to prevent the introduction of neat-ethanol-fueled vehicles or the increase in LPG-fueled vehicles.

  8. Alternative Fuels Data Center: Underwriters Laboratories Ethanol...

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    August 2009: New Mid-Level Ethanol Blends Certification Path, UL Meeting, and Mid-Level ... In 2007, UL published new testing procedures for E85 ethanol dispenser systems and, in ...

  9. Effects of Mid-Level Ethanol Blends on Conventional Vehicle Emissions

    SciTech Connect (OSTI)

    Knoll, K.; West, B.; Huff, S.; Thomas, J.; Orban, J.; Cooper, C.

    2010-06-01

    Tests were conducted in 2008 on 16 late-model conventional vehicles (1999-2007) to determine short-term effects of mid-level ethanol blends on performance and emissions. Vehicle odometer readings ranged from 10,000 to 100,000 miles, and all vehicles conformed to federal emissions requirements for their federal certification level. The LA92 drive cycle, also known as the Unified Cycle, was used for testing because it more accurately represents real-world acceleration rates and speeds than the Federal Test Procedure. Test fuels were splash-blends of up to 20 volume percent ethanol with federal certification gasoline. Both regulated and unregulated air-toxic emissions were measured. For the 16-vehicle fleet, increasing ethanol content resulted in reductions in average composite emissions of both nonmethane hydrocarbons and carbon monoxide and increases in average emissions of ethanol and aldehydes.

  10. Underground Storage Tanks: New Fuels and Compatibility

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    high octane ethanol blended fuels will require careful consideration of material compatibility issues with existing infrastructure Outline: 1. Ethanol blended fuels ...

  11. Ethanol: farm and fuel issues

    SciTech Connect (OSTI)

    Not Available

    1980-08-01

    The current U.S. and world grain situations are described as well as adjustments which would be likely for fuel production of 1, 2 and 4 billion gallons of ethanol annually in the 1985-86 period. Predicted acreage shifts in corn, soybeans, wheat and the total of seven major crops are shown. The most likely effects on the feed grains markets both here and abroad are discussed. The value of corn for fuel both with and without the gasoline tax exemption is compared to the actual farm price expected if in the base case (1 billion gallons) real corn prices do not rise. In the higher 2 and 4 billion gallon cases, increases in the real cost of corn and its impact on food prices and the CPI are estimated. A theoretical maximum level of ethanol production recognizing market factors is discussed in terms of acreage, yield, corn production and the fuel ethanol available. Agricultural and other policy frameworks are discussed.

  12. Exhaust particle characterization for lean and stoichiometric DI vehicles operating on ethanol-gasoline blends

    SciTech Connect (OSTI)

    Storey, John Morse; Barone, Teresa L; Thomas, John F; Huff, Shean P

    2012-01-01

    Gasoline direct injection (GDI) engines can offer better fuel economy and higher performance over their port fuel-injected (PFI) counterparts, and are now appearing in increasingly more U.S. and European vehicles. Small displacement, turbocharged GDI engines are replacing large displacement engines, particularly in light-duty trucks and sport utility vehicles, in order for manufacturers to meet the U.S. fuel economy standards for 2016. Furthermore, lean-burn GDI engines can offer even higher fuel economy than stoichiometric GDI engines and have overcome challenges associated with cost-effective aftertreatment for NOx control. Along with changes in gasoline engine technology, fuel composition may increase in ethanol content beyond the current 10% due to the recent EPA waiver allowing 15% ethanol. In addition, the Renewable Fuels Standard passed as part of the 2007 Energy Independence and Security Act (EISA) mandates the use of biofuels in upcoming years. GDI engines are of environmental concern due to their high particulate matter (PM) emissions relative to port-fuel injected (PFI) gasoline vehicles; widespread market penetration of GDI vehicles may result in additional PM from mobile sources at a time when the diesel contribution is declining. In this study, we characterized particulate emissions from a European certified lean-burn GDI vehicle operating on ethanol-gasoline blends. Particle mass and particle number concentration emissions were measured for the Federal Test Procedure urban driving cycle (FTP 75) and the more aggressive US06 driving cycle. Particle number-size distributions and organic to elemental carbon ratios (OC/EC) were measured for 30 MPH and 80 MPH steady-state operation. In addition, particle number concentration was measured during wide open throttle accelerations (WOTs) and gradual accelerations representative of the FTP 75. Fuels included certification gasoline and 10% (E10) and 20% (E20) ethanol blends from the same supplier. The particle

  13. Detailed HCCI Exhaust Speciation - ORNL Reference Fuel Blends...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    HCCI Exhaust Speciation - ORNL Reference Fuel Blends Detailed HCCI Exhaust Speciation - ORNL Reference Fuel Blends *Accurately measure exhaust profile from an HCCI engine with a ...

  14. A Multicomponent Blend as a Diesel Fuel Surrogate for Compression...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    A Multicomponent Blend as a Diesel Fuel Surrogate for Compression Ignition Engine Applications Title A Multicomponent Blend as a Diesel Fuel Surrogate for Compression Ignition...

  15. Vehicle Technologies Office: Intermediate Ethanol Blends Research and Testing

    Broader source: Energy.gov [DOE]

    DOE's Vehicle Technologies Office supported work to examine the impact of intermediate ethanol blends on passenger vehicles, outdoor equipment and generator sets. Based on this research, the EPA issued waivers allowing vehicles from model year 2001 and beyond to use E15.

  16. Volatility of Gasoline and Diesel Fuel Blends for Supercritical Fuel

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Injection | Department of Energy Gasoline and Diesel Fuel Blends for Supercritical Fuel Injection Volatility of Gasoline and Diesel Fuel Blends for Supercritical Fuel Injection Supercritical dieseline could be used in diesel engines having efficient fuel systems and combustion chamber designs that decrease fuel consumption and mitigate emissions. p-02_anitescu.pdf (339.45 KB) More Documents & Publications Preparation, Injection and Combustion of Supercritical Fluids Evaluation of

  17. Evaluation of Ethanol Blends for PHEVs using Simulation and

    Broader source: Energy.gov (indexed) [DOE]

    Advanced Distillation Curve Method | Department of Energy Supercritical transesterification processing permits efficient fuel system and combustion chamber designs to optimize fuel utilization in diesel engines., p-01_anitescu.pdf (408.75 KB) More Documents & Publications Preparation, Injection and Combustion of Supercritical Fluids Volatility of Gasoline and Diesel Fuel Blends for Supercritical Fuel Injection Algae Biofuels Technology Energy

    This research effort is a part of the

  18. Greenhouse gases in the corn-to-fuel ethanol pathway.

    SciTech Connect (OSTI)

    Wang, M. Q.

    1998-06-18

    Argonne National Laboratory (ANL) has applied its Greenhouse gas, Regulated Emissions and Energy in Transportation (GREET) full-fuel-cycle analysis model to examine greenhouse gas (GHG) emissions of corn-feedstock ethanol, given present and near-future production technology and practice. On the basis of updated information appropriate to corn farming and processing operations in the four principal corn- and ethanol-producing states (Illinois, Iowa, Minnesota, and Nebraska), the model was used to estimate energy requirements and GHG emissions of corn farming; the manufacture, transportation to farms, and field application of fertilizer and pesticide; transportation of harvested corn to ethanol plants; nitrous oxide emissions from cultivated cornfields; ethanol production in current average and future technology wet and dry mills; and operation of cars and light trucks using ethanol fuels. For all cases examined on the basis of mass emissions per travel mile, the corn-to-ethanol fuel cycle for Midwest-produced ethanol used in both E85 and E10 blends with gasoline outperforms conventional (current) and reformulated (future) gasoline with respect to energy use and GHG production. Also, GHG reductions (but not energy use) appear surprisingly sensitive to the value chosen for combined soil and leached N-fertilizer conversion to nitrous oxide. Co-product energy-use attribution remains the single key factor in estimating ethanol's relative benefits because this value can range from 0 to 50%, depending on the attribution method chosen.

  19. Economics of ethanol fuel for crop production

    SciTech Connect (OSTI)

    Fontana, C.; Rotz, C.A.

    1982-07-01

    A computer model was developed to simulate conventional and ethanol fuel consumption for crop production. The model was validated by obtaining a close comparison between simulated and actual diesel requirements for farms in Michigan. Parameters for ethanol consumption were obtained from laboratory tests using total fueling of spark-ignition engines and dual-fueling of diesel engines with ethanol. Ethanol fuel will always be more economically used in spark-ignition engines than in dual-fueled diesel engines. The price of gasoline must inflate at least 14 percent/year greater than that of ethanol and diesel must inflate at least 23 percent/year more than ethanol to allow economic use of ethanol as tractor fuel within the next 5 years. (Refs. 13).

  20. High-Octane Mid-Level Ethanol Blend Market Assessment

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    High-Octane Mid-Level Ethanol Blend Market Assessment Caley Johnson, Emily Newes, Aaron Brooker, and Robert McCormick National Renewable Energy Laboratory Steve Peterson Lexidyne, LLC Paul Leiby, Rocio Uria Martinez, and Gbadebo Oladosu Oak Ridge National Laboratory Maxwell L. Brown Colorado School of Mines Technical Report NREL/TP-5400-63698 December 2015 NREL is a national laboratory of the U.S. Department of Energy Office of Energy Efficiency & Renewable Energy Operated by the Alliance

  1. Ethanol Blend Effects On Direct Injection Spark-Ignition Gasoline Vehicle Particulate Matter Emissions

    SciTech Connect (OSTI)

    Storey, John Morse; Lewis Sr, Samuel Arthur; Barone, Teresa L

    2010-01-01

    Direct injection spark-ignition (DISI) gasoline engines can offer better fuel economy and higher performance over their port fuel-injected counterparts, and are now appearing increasingly in more U.S. vehicles. Small displacement, turbocharged DISI engines are likely to be used in lieu of large displacement engines, particularly in light-duty trucks and sport utility vehicles, to meet fuel economy standards for 2016. In addition to changes in gasoline engine technology, fuel composition may increase in ethanol content beyond the 10% allowed by current law due to the Renewable Fuels Standard passed as part of the 2007 Energy Independence and Security Act (EISA). In this study, we present the results of an emissions analysis of a U.S.-legal stoichiometric, turbocharged DISI vehicle, operating on ethanol blends, with an emphasis on detailed particulate matter (PM) characterization. Gaseous species, particle mass, and particle number concentration emissions were measured for the Federal Test Procedure urban driving cycle (FTP 75) and the more aggressive US06 cycle. Particle number-size distributions and organic to elemental carbon ratios (OC/EC) were measured for 30 MPH and 80 MPH steady-state operation. In addition, particle number concentration was measured during wide open throttle accelerations (WOTs) and gradual accelerations representative of the FTP 75. For the gaseous species and particle mass measurements, dilution was carried out using a full flow constant volume sampling system (CVS). For the particle number concentration and size distribution measurements, a micro-tunnel dilution system was employed. The vehicles were fueled by a standard test gasoline and 10% (E10) and 20% (E20) ethanol blends from the same supplier. The particle mass emissions were approximately 3 and 7 mg/mile for the FTP75 and US06, respectively, with lower emissions for the ethanol blends. During steady-state operation, the geometric mean diameter of the particle-number size

  2. Vehicle Certification Test Fuel and Ethanol Flex Fuel Quality | Department

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    of Energy Vehicle Certification Test Fuel and Ethanol Flex Fuel Quality Vehicle Certification Test Fuel and Ethanol Flex Fuel Quality Breakout Session 2: Frontiers and Horizons Session 2-B: End Use and Fuel Certification Paul Machiele, Center Director for Fuel Programs, Office of Transportation & Air Quality, U.S. Environmental Protection Agency b13_machiele_2-b.pdf (124.12 KB) More Documents & Publications High Octane Fuels Can Make Better Use of Renewable Transportation Fuels The

  3. Algenol Announces Commercial Algal Ethanol Fuel Partnership ...

    Energy Savers [EERE]

    Protec Fuel to market and distribute commercial ethanol produced from algae for fleets and retail consumption from Algenol's commercial demonstration module in Fort Myers, Florida. ...

  4. Ethanol: Producting Food, Feed, and Fuel

    Broader source: Energy.gov [DOE]

    At the August 7, 2008 joint quarterly Web conference of DOE's Biomass and Clean Cities programs, Todd Sneller (Nebraska Ethanol Board) discussed the food versus fuel issue.

  5. Alternative Fuels Data Center

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Ethanol Blend Dispenser Requirement A retail motor fuel dispenser that dispenses fuel containing more than 10% ethanol by volume must be labeled with the capital letter "E" ...

  6. Evaluation of Ethanol Blends for PHEVs using Simulation andEngine...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Ethanol Blends for PHEVs using Simulation and Engine-in-the-Loop Evaluation of Ethanol ... Program Annual Merit Review and Peer Evaluation PDF icon vss049shidore2011o.pdf More ...

  7. Fuel and fuel blending components from biomass derived pyrolysis oil

    DOE Patents [OSTI]

    McCall, Michael J.; Brandvold, Timothy A.; Elliott, Douglas C.

    2012-12-11

    A process for the conversion of biomass derived pyrolysis oil to liquid fuel components is presented. The process includes the production of diesel, aviation, and naphtha boiling point range fuels or fuel blending components by two-stage deoxygenation of the pyrolysis oil and separation of the products.

  8. Henan Tianguan Fuel Ethanol Co Ltd | Open Energy Information

    Open Energy Info (EERE)

    Tianguan Fuel Ethanol Co Ltd Jump to: navigation, search Name: Henan Tianguan Fuel Ethanol Co Ltd Place: Nanyang, Henan Province, China Product: Project developer of a bioethanol...

  9. Experiences from Ethanol Buses and Fuel Station Report - La Spezia...

    Open Energy Info (EERE)

    Experiences from Ethanol Buses and Fuel Station Report - La Spezia Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Experiences from Ethanol Buses and Fuel Station Report...

  10. Microbial fuel cell treatment of ethanol fermentation process...

    Office of Scientific and Technical Information (OSTI)

    Microbial fuel cell treatment of ethanol fermentation process water Title: Microbial fuel cell treatment of ethanol fermentation process water The present invention relates to a ...

  11. Pilot Integrated Cellulosic Biorefinery Operations to Fuel Ethanol

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Biorefinery Operations to Fuel Ethanol Award Number: DE-EE0002875 March 23, 2015 ... to refine cellulosic biomass into fuel ethanol and co-products Create an ...

  12. Heavy Alcohols as a Fuel Blending Agent for Compression Ignition...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Avoidance Characterization of Dual-Fuel Reactivity Controlled Compression Ignition (RCCI) Using Hydrated Ethanol and Diesel Fuel BiodieselFuelManagementBestPracticesReport.pdf

  13. Dual-fueling turbocharged diesels with ethanol

    SciTech Connect (OSTI)

    Cruz, J.M.; Rotz, C.A.; Watson, D.H.

    1982-09-01

    Spray addition and carburetion methods were tested for dual-fueling a turbocharged, 65 kW diesel tractor. Approximately 30 percent of the fuel energy for the tractor was supplied by spraying ethanol into the intake air and about 46 percent by carburetion with little affect on the engine thermal efficiency. Further substitution of diesel fuel with ethanol was limited by knock. As the amount of ethanol fed into the engine was increased, ignition apparently changed from the steady burning process which normally occurs in a diesel engine to a rapid explosion which caused knock. The best fuel for the spray approach was a 50 percent ethanol/water solution and with the carburetor it was an 80 percent ethanol/water solution.

  14. Dual-fueling turbocharged diesels with ethanol

    SciTech Connect (OSTI)

    Cruz, J.M.; Rotz, C.A.; Watson, D.H.

    1982-09-01

    Spray addition and carburetion methods were tested for dual-fueling a turbocharged, 65 kW diesel tractor. Approximately 30 percent of the fuel energy for the tractor was supplied by spraying ethanol into the intake air and about 46 percent by carburetion with little affect on the engine thermal efficiency. Further substitution of diesel fuel with ethanol was limited by knock. As the amount of ethanol fed into the engine was increased, ignition apparently changed from the steady burning process which normally occurs in a diesel engine to a rapid explosion which caused knock. The best fuel for the spray approach was a 50 percent ethanol/water solution and with the carburetor it was an 80 percent ethanol/water solution. (Refs. 6).

  15. Mixed waste paper to ethanol fuel

    SciTech Connect (OSTI)

    Not Available

    1991-01-01

    The objectives of this study were to evaluate the use of mixed waste paper for the production of ethanol fuels and to review the available conversion technologies, and assess developmental status, current and future cost of production and economics, and the market potential. This report is based on the results of literature reviews, telephone conversations, and interviews. Mixed waste paper samples from residential and commercial recycling programs and pulp mill sludge provided by Weyerhauser were analyzed to determine the potential ethanol yields. The markets for ethanol fuel and the economics of converting paper into ethanol were investigated.

  16. Alternative Fuels Data Center: Ethanol Benefits and Considerations

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Ethanol Benefits and Considerations to someone by E-mail Share Alternative Fuels Data Center: Ethanol Benefits and Considerations on Facebook Tweet about Alternative Fuels Data Center: Ethanol Benefits and Considerations on Twitter Bookmark Alternative Fuels Data Center: Ethanol Benefits and Considerations on Google Bookmark Alternative Fuels Data Center: Ethanol Benefits and Considerations on Delicious Rank Alternative Fuels Data Center: Ethanol Benefits and Considerations on Digg Find More

  17. The Impact of Ethanol Blending on U.S. Gasoline Prices

    SciTech Connect (OSTI)

    none,

    2008-11-01

    This study assesses the impact of ethanol blending on gasoline prices in the United States today and the potential impact of ethanol on gasoline prices at higher blending concentrations (10%, 15% and 20% of the total U.S. gasoline consumption).

  18. Handbook for Handling, Storing, and Dispensing E85 and Other Ethanol-Gasoline Blends

    SciTech Connect (OSTI)

    2013-09-17

    This document serves as a guide for blenders, distributors, sellers, and users of E85 and other ethanol blends above E10. It provides basic information on the proper and safe use of E85 and other ethanol blends and includes supporting technical and policy references.

  19. Handbook for Handling, Storing, and Dispensing E85 and Other Ethanol-Gasoline Blends (Book)

    SciTech Connect (OSTI)

    Moriarty, K.

    2013-09-01

    This document serves as a guide for blenders, distributors, sellers, and users of E85 and other ethanol blends above E10. It provides basic information on the proper and safe use of E85 and other ethanol blends and includes supporting technical and policy references.

  20. Effects of Intermediate Ethanol Blends on Legacy Vehicles and Small Non-Road Engines, Report 1 … Updated Feb 2009

    Broader source: Energy.gov [DOE]

    Effects of Intermediate Ethanol Blends on Legacy Vehicles and Small Non-Road Effects of Intermediate Ethanol Blends on Legacy Vehicles and Small Non-Road Engines, Report 1 … Updated Feb 2009

  1. Algenol Announces Commercial Algal Ethanol Fuel Partnership

    Broader source: Energy.gov [DOE]

    U.S. Department of Energys Bioenergy Technologies Office (BETO) partner Algenol signed an agreement with Protec Fuel to market and distribute commercial ethanol produced from algae for fleets and...

  2. Analysis of Fuel Ethanol Transportation Activity and Potential Distribution Constraints

    SciTech Connect (OSTI)

    Das, Sujit; Peterson, Bruce E; Chin, Shih-Miao

    2010-01-01

    This paper provides an analysis of fuel ethanol transportation activity and potential distribution constraints if the total 36 billion gallons of renewable fuel use by 2022 is mandated by EPA under the Energy Independence and Security Act (EISA) of 2007. Ethanol transport by domestic truck, marine, and rail distribution systems from ethanol refineries to blending terminals is estimated using Oak Ridge National Laboratory s (ORNL s) North American Infrastructure Network Model. Most supply and demand data provided by EPA were geo-coded and using available commercial sources the transportation infrastructure network was updated. The percentage increases in ton-mile movements by rail, waterways, and highways in 2022 are estimated to be 2.8%, 0.6%, and 0.13%, respectively, compared to the corresponding 2005 total domestic flows by various modes. Overall, a significantly higher level of future ethanol demand would have minimal impacts on transportation infrastructure. However, there will be spatial impacts and a significant level of investment required because of a considerable increase in rail traffic from refineries to ethanol distribution terminals.

  3. Alternative Fuels Data Center: Federal Laws and Incentives for Ethanol

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Ethanol Printable Version Share this resource Send a link to Alternative Fuels Data Center: Federal Laws and Incentives for Ethanol to someone by E-mail Share Alternative Fuels Data Center: Federal Laws and Incentives for Ethanol on Facebook Tweet about Alternative Fuels Data Center: Federal Laws and Incentives for Ethanol on Twitter Bookmark Alternative Fuels Data Center: Federal Laws and Incentives for Ethanol on Google Bookmark Alternative Fuels Data Center: Federal Laws and Incentives for

  4. Investigation of critical equivalence ratio and chemical speciation in flames of ethylbenzene-ethanol blends

    SciTech Connect (OSTI)

    Therrien, Richard J.; Ergut, Ali; Levendis, Yiannis A.; Richter, Henning; Howard, Jack B.; Carlson, Joel B.

    2010-02-15

    This work investigates five different one-dimensional, laminar, atmospheric pressure, premixed ethanol/ethylbenzene flames (0%, 25%, 50%, 75% and 90% ethanol by weight) at their soot onset threshold ({phi}{sub critical}). Liquid ethanol/ethylbenzene mixtures were pre-vaporized in nitrogen, blended with an oxygen-nitrogen mixture and, upon ignition, burned in premixed one-dimensional flames at atmospheric pressure. The flames were controlled so that each was at its visual soot onset threshold, and all had similar temperature profiles (determined by thermocouples). Fixed gases, light volatile hydrocarbons, polycyclic aromatic hydrocarbons (PAH), and oxygenated aromatic hydrocarbons were directly sampled at three locations in each flame. The experimental results were compared with a detailed kinetic model, and the modeling results were used to perform a reaction flux analysis of key species. The critical equivalence ratio was observed to increase in a parabolic fashion as ethanol concentration increased in the fuel mixture. The experimental results showed increasing trends of methane, ethane, and ethylene with increasing concentrations of ethanol in the flames. Carbon monoxide was also seen to increase significantly with the increase of ethanol in the flame, which removes carbon from the PAH and soot formation pathways. The PAH and oxygenated aromatic hydrocarbon values were very similar in the 0%, 25% and 50% ethanol flames, but significantly lower in the 75% and 90% ethanol flames. These results were in general agreement with the model and were reflected by the model soot predictions. The model predicted similar soot profiles for the 0%, 25% and 50% ethanol flames, however it predicted significantly lower values in the 75% and 90% ethanol flames. The reaction flux analysis revealed benzyl to be a major contributor to single and double ring aromatics (i.e., benzene and naphthalene), which was identified in a similar role in nearly sooting or highly sooting

  5. Novel Vertimass Catalyst for Conversion of Ethanol and Other...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Novel Vertimass Catalyst for Conversion of Ethanol and Other Alcohols into Fungible Gasoline, Jet, and Diesel Fuel Blend Stocks Novel Vertimass Catalyst for Conversion of Ethanol ...

  6. Experiences from Ethanol Buses and Fuel Station Report - Nanyang...

    Open Energy Info (EERE)

    Nanyang Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Experiences from Ethanol Buses and Fuel Station Report - Nanyang AgencyCompany Organization: BioEthanol for...

  7. Adapting ethanol fuels to diesel engines

    SciTech Connect (OSTI)

    Not Available

    1981-08-01

    During the 2nd International Alcohol Symposium 1977, Daimler-Benz reported on the advantages and disadvantages of the various methods of using ethanol in originally diesel-operated commercial vehicles, and especially about the first results in the field of adapting the ethanol fuel to the requirements of conventional diesel engines. Investigations to this effect were continued by Daimler-Benz AG, Stuttgart, and Mercedes-Benz of Brasil in coordination with competent Brazilian government departments. The development effort is primarily adapted to Brazilian conditions, since ethanol fuel is intended as a long-term project in this country. This report is presented under headings - auto-ignition; durability tests; remedial measures; the injection systems; ethanol quality.

  8. Alternative Fuels Data Center

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Diesel Fuel Blend Tax Exemption The biodiesel or ethanol portion of blended fuel containing taxable diesel is exempt from the diesel fuel tax. The biodiesel or ethanol fuel blend must be clearly identified on the retail pump, storage tank, and sales invoice in order to be eligible for the exemption. (Reference Texas Statutes, Tax Code 162.2

  9. Regulated and Unregulated Exhaust Emissions Comparison for Three Tier II Non-Road Diesel Engines Operating on Ethanol-Diesel Blends

    SciTech Connect (OSTI)

    Merritt, P. M.; Ulmet, V.; McCormick, R. L.; Mitchell, W. E.; Baumgard, K. J.

    2005-11-01

    Regulated and unregulated emissions (individual hydrocarbons, ethanol, aldehydes and ketones, polynuclear aromatic hydrocarbons (PAH), nitro-PAH, and soluble organic fraction of particulate matter) were characterized in engines utilizing duplicate ISO 8178-C1 eight-mode tests and FTP smoke tests. Certification No. 2 diesel (400 ppm sulfur) and three ethanol/diesel blends, containing 7.7 percent, 10 percent, and 15 percent ethanol, respectively, were used. The three, Tier II, off-road engines were 6.8-L, 8.1-L, and 12.5-L in displacement and each had differing fuel injection system designs. It was found that smoke and particulate matter emissions decreased with increasing ethanol content. Changes to the emissions of carbon monoxide and oxides of nitrogen varied with engine design, with some increases and some decreases. As expected, increasing ethanol concentration led to higher emissions of acetaldehyde (increases ranging from 27 to 139 percent). Benzene emissions were reduced by up to 50 percent with the ethanol-blended fuels. Emissions of 1,3-butadiene were also substantially decreased, with reductions ranging from 24 to 82 percent. Isolated trends were noted for certain PAHs. There was a decrease in 1-nitropyrene with use of ethanol in all cases. Particulate phase 1-nitropyrene was reduced from 18 to 62 percent. There was also a general increase in the proportion of heavy PAHs in the particulate phase with ethanol use, and although less pronounced, a general decrease in light PAHs in the particulate phase.

  10. Alternative Fuels Data Center: Pennsylvania's Ethanol Corridor Project

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Surpasses 1 Million Gallons Pennsylvania's Ethanol Corridor Project Surpasses 1 Million Gallons to someone by E-mail Share Alternative Fuels Data Center: Pennsylvania's Ethanol Corridor Project Surpasses 1 Million Gallons on Facebook Tweet about Alternative Fuels Data Center: Pennsylvania's Ethanol Corridor Project Surpasses 1 Million Gallons on Twitter Bookmark Alternative Fuels Data Center: Pennsylvania's Ethanol Corridor Project Surpasses 1 Million Gallons on Google Bookmark Alternative

  11. Alternative Fuels Data Center: Status Update: Ethanol Blender Pump

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Dispenser Certified (August 2010) Ethanol Blender Pump Dispenser Certified (August 2010) to someone by E-mail Share Alternative Fuels Data Center: Status Update: Ethanol Blender Pump Dispenser Certified (August 2010) on Facebook Tweet about Alternative Fuels Data Center: Status Update: Ethanol Blender Pump Dispenser Certified (August 2010) on Twitter Bookmark Alternative Fuels Data Center: Status Update: Ethanol Blender Pump Dispenser Certified (August 2010) on Google Bookmark Alternative

  12. Key Benefits in Using Ethanol-Diesel Blends | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Verifying the Benefits and Resolving the Issues in the Commercialization of Ethanol Containing Diesel Fuels Biodiesel Basics (Fact Sheet), Vehicle Technologies Program (VTP) ...

  13. Certification of alternative aviation fuels and blend components

    SciTech Connect (OSTI)

    Wilson III, George R. ); Edwards, Tim; Corporan, Edwin ); Freerks, Robert L. )

    2013-01-15

    Aviation turbine engine fuel specifications are governed by ASTM International, formerly known as the American Society for Testing and Materials (ASTM) International, and the British Ministry of Defence (MOD). ASTM D1655 Standard Specification for Aviation Turbine Fuels and MOD Defence Standard 91-91 are the guiding specifications for this fuel throughout most of the world. Both of these documents rely heavily on the vast amount of experience in production and use of turbine engine fuels from conventional sources, such as crude oil, natural gas condensates, heavy oil, shale oil, and oil sands. Turbine engine fuel derived from these resources and meeting the above specifications has properties that are generally considered acceptable for fuels to be used in turbine engines. Alternative and synthetic fuel components are approved for use to blend with conventional turbine engine fuels after considerable testing. ASTM has established a specification for fuels containing synthesized hydrocarbons under D7566, and the MOD has included additional requirements for fuels containing synthetic components under Annex D of DS91-91. New turbine engine fuel additives and blend components need to be evaluated using ASTM D4054, Standard Practice for Qualification and Approval of New Aviation Turbine Fuels and Fuel Additives. This paper discusses these specifications and testing requirements in light of recent literature claiming that some biomass-derived blend components, which have been used to blend in conventional aviation fuel, meet the requirements for aviation turbine fuels as specified by ASTM and the MOD. The 'Table 1' requirements listed in both D1655 and DS91-91 are predicated on the assumption that the feedstocks used to make fuels meeting these requirements are from approved sources. Recent papers have implied that commercial jet fuel can be blended with renewable components that are not hydrocarbons (such as fatty acid methyl esters). These are not allowed blend

  14. Intermediate Alcohol-Gasoline Blends, Fuels for Enabling Increased Engine Efficiency and Powertrain Possibilities

    SciTech Connect (OSTI)

    Splitter, Derek A; Szybist, James P

    2014-01-01

    The present study experimentally investigates spark-ignited combustion with 87 AKI E0 gasoline in its neat form and in mid-level alcohol-gasoline blends with 24% vol./vol. iso-butanol-gasoline (IB24) and 30% vol./vol. ethanol-gasoline (E30). A single-cylinder research engine is used with a low and high compression ratio of 9.2:1 and 11.85:1 respectively. The engine is equipped with hydraulically actuated valves, laboratory intake air, and is capable of external exhaust gas recirculation (EGR). All fuels are operated to full-load conditions with =1, using both 0% and 15% external cooled EGR. The results demonstrate that higher octane number bio-fuels better utilize higher compression ratios with high stoichiometric torque capability. Specifically, the unique properties of ethanol enabled a doubling of the stoichiometric torque capability with the 11.85:1 compression ratio using E30 as compared to 87 AKI, up to 20 bar IMEPg at =1 (with 15% EGR, 18.5 bar with 0% EGR). EGR was shown to provide thermodynamic advantages with all fuels. The results demonstrate that E30 may further the downsizing and downspeeding of engines by achieving increased low speed torque, even with high compression ratios. The results suggest that at mid-level alcohol-gasoline blends, engine and vehicle optimization can offset the reduced fuel energy content of alcohol-gasoline blends, and likely reduce vehicle fuel consumption and tailpipe CO2 emissions.

  15. Elastomer Compatibility Testing of Renewable Diesel Fuels

    SciTech Connect (OSTI)

    Frame, E.; McCormick, R. L.

    2005-11-01

    In this study, the integrity and performance of six elastomers were tested with ethanol-diesel and biodiesel fuel blends.

  16. Impacts of ethanol fuel level on emissions of regulated and unregulated pollutants from a fleet of gasoline light-duty vehicles

    SciTech Connect (OSTI)

    Karavalakis, Georgios; Durbin, Thomas; Shrivastava, ManishKumar B.; Zheng, Zhongqing; Villella, Phillip M.; Jung, Hee-Jung

    2012-03-30

    The study investigated the impact of ethanol blends on criteria emissions (THC, NMHC, CO, NOx), greenhouse gas (CO2), and a suite of unregulated pollutants in a fleet of gasoline-powered light-duty vehicles. The vehicles ranged in model year from 1984 to 2007 and included one Flexible Fuel Vehicle (FFV). Emission and fuel consumption measurements were performed in duplicate or triplicate over the Federal Test Procedure (FTP) driving cycle using a chassis dynamometer for four fuels in each of seven vehicles. The test fuels included a CARB phase 2 certification fuel with 11% MTBE content, a CARB phase 3 certification fuel with a 5.7% ethanol content, and E10, E20, E50, and E85 fuels. In most cases, THC and NMHC emissions were lower with the ethanol blends, while the use of E85 resulted in increases of THC and NMHC for the FFV. CO emissions were lower with ethanol blends for all vehicles and significantly decreased for earlier model vehicles. Results for NOx emissions were mixed, with some older vehicles showing increases with increasing ethanol level, while other vehicles showed either no impact or a slight, but not statistically significant, decrease. CO2 emissions did not show any significant trends. Fuel economy showed decreasing trends with increasing ethanol content in later model vehicles. There was also a consistent trend of increasing acetaldehyde emissions with increasing ethanol level, but other carbonyls did not show strong trends. The use of E85 resulted in significantly higher formaldehyde and acetaldehyde emissions than the specification fuels or other ethanol blends. BTEX and 1,3-butadiene emissions were lower with ethanol blends compared to the CARB 2 fuel, and were almost undetectable from the E85 fuel. The largest contribution to total carbonyls and other toxics was during the cold-start phase of FTP.

  17. Selective Catalytic Reduction of Oxides of Nitrogen with Ethanol/Gasoline Blends over a Silver/Alumina Catalyst on Lean Gasoline Engine

    SciTech Connect (OSTI)

    Prikhodko, Vitaly Y; Pihl, Josh A; Toops, Todd J; Thomas, John F; Parks, II, James E; West, Brian H

    2015-01-01

    Ethanol is a very effective reductant of nitrogen oxides (NOX) over silver/alumina (Ag/Al2O3) catalysts in lean exhaust environment. With the widespread availability of ethanol/gasoline-blended fuel in the USA, lean gasoline engines equipped with an Ag/Al2O3 catalyst have the potential to deliver higher fuel economy than stoichiometric gasoline engines and to increase biofuel utilization while meeting exhaust emissions regulations. In this work a pre-commercial 2 wt% Ag/Al2O3 catalyst was evaluated on a 2.0-liter BMW lean burn gasoline direct injection engine for the selective catalytic reduction (SCR) of NOX with ethanol/gasoline blends. The ethanol/gasoline blends were delivered via in-pipe injection upstream of the Ag/Al2O3 catalyst with the engine operating under lean conditions. A number of engine conditions were chosen to provide a range of temperatures and space velocities for the catalyst performance evaluations. High NOX conversions were achieved with ethanol/gasoline blends containing at least 50% ethanol; however, higher C1/N ratio was needed to achieve greater than 90% NOX conversion, which also resulted in significant HC slip. Temperature and HC dosing were important in controlling selectivity to NH3 and N2O. At high temperatures, NH3 and N2O yields increased with increased HC dosing. At low temperatures, NH3 yield was very low, however, N2O levels became significant. The ability to generate NH3 under lean conditions has potential for application of a dual SCR approach (HC SCR + NH3 SCR) to reduce fuel consumption needed for NOX reduction and/or increased NOX conversion, which is discussed in this work.

  18. Alternative Fuels Data Center: Status Update: Clarification of Ethanol

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Certification Limits for Legacy Equipment (December 2008) Clarification of Ethanol Certification Limits for Legacy Equipment (December 2008) to someone by E-mail Share Alternative Fuels Data Center: Status Update: Clarification of Ethanol Certification Limits for Legacy Equipment (December 2008) on Facebook Tweet about Alternative Fuels Data Center: Status Update: Clarification of Ethanol Certification Limits for Legacy Equipment (December 2008) on Twitter Bookmark Alternative Fuels Data

  19. Novel Vertimass Catalyst for Conversion of Ethanol and Other Alcohols into

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Fungible Gasoline, Jet, and Diesel Fuel Blend Stocks | Department of Energy Novel Vertimass Catalyst for Conversion of Ethanol and Other Alcohols into Fungible Gasoline, Jet, and Diesel Fuel Blend Stocks Novel Vertimass Catalyst for Conversion of Ethanol and Other Alcohols into Fungible Gasoline, Jet, and Diesel Fuel Blend Stocks Breakout Session 2-B: New/Emerging Pathways Novel Vertimass Catalyst for Conversion of Ethanol and Other Alcohols into Fungible Gasoline, Jet, and Diesel Fuel Blend

  20. Selective catalytic reduction of nitric oxide with ethanol/gasoline blends over a silver/alumina catalyst

    SciTech Connect (OSTI)

    Pihl, Josh A; Toops, Todd J; Fisher, Galen; West, Brian H

    2014-01-01

    Lean gasoline engines running on ethanol/gasoline blends and equipped with a silver/alumina catalyst for selective catalytic reduction (SCR) of NO by ethanol provide a pathway to reduced petroleum consumption through both increased biofuel utilization and improved engine efficiency relative to the current stoichiometric gasoline engines that dominate the U.S. light duty vehicle fleet. A pre-commercial silver/alumina catalyst demonstrated high NOx conversions over a moderate temperature window with both neat ethanol and ethanol/gasoline blends containing at least 50% ethanol. Selectivity to NH3 increases with HC dosing and ethanol content in gasoline blends, but appears to saturate at around 45%. NO2 and acetaldehyde behave like intermediates in the ethanol SCR of NO. NH3 SCR of NOx does not appear to play a major role in the ethanol SCR reaction mechanism. Ethanol is responsible for the low temperature SCR activity observed with the ethanol/gasoline blends. The gasoline HCs do not deactivate the catalyst ethanol SCR activity, but they also do not appear to be significantly activated by the presence of ethanol.

  1. Effects of Intermediate Ethanol Blends on Legacy Vehicles and Small Non‑Road Engines, Report 1 - Updated

    SciTech Connect (OSTI)

    Knoll, Keith; West, Brian H; Clark, Wendy; Graves, Ronald L; Orban, John; Przesmitzki, Steve; Theiss, Timothy J

    2009-02-01

    In summer 2007, the U.S. Department of Energy (DOE) initiated a test program to evaluate the potential impacts of intermediate ethanol blends on legacy vehicles and other engines. The purpose of the test program is to assess the viability of using intermediate blends as a contributor to meeting national goals in the use of renewable fuels. Through a wide range of experimental activities, DOE is evaluating the effects of E15 and E20--gasoline blended with 15 and 20% ethanol--on tailpipe and evaporative emissions, catalyst and engine durability, vehicle driveability, engine operability, and vehicle and engine materials. This first report provides the results available to date from the first stages of a much larger overall test program. Results from additional projects that are currently underway or in the planning stages are not included in this first report. The purpose of this initial study was to quickly investigate the effects of adding up to 20% ethanol to gasoline on the following: (1) Regulated tailpipe emissions for 13 popular late model vehicles on a drive cycle similar to real-world driving and 28 small non-road engines (SNREs) under certification or typical in use procedures. (2) Exhaust and catalyst temperatures of the same vehicles under more severe conditions. (3) Temperature of key engine components of the same SNREs under certification or typical in-use conditions. (4) Observable operational issues with either the vehicles or SNREs during the course of testing. As discussed in the concluding section of this report, a wide range of additional studies are underway or planned to consider the effects of intermediate ethanol blends on materials, emissions, durability, and driveability of vehicles, as well as impacts on a wider range of nonautomotive engines, including marine applications, snowmobiles, and motorcycles. Section 1 (Introduction) gives background on the test program and describes collaborations with industry and agencies to date. Section 2

  2. Alternative Fuels Data Center

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Ethanol Blend Requirement Suppliers that import gasoline for sale in North Carolina must offer fuel that is not pre-blended with fuel alcohol but that is suitable for future blending. Future contract provisions that restrict distributors or retailers from blending gasoline with fuel alcohol are void. (Reference North Carolina General Statutes 75-90, 105-449.60

  3. U.S. Fuel Ethanol Plant Production Capacity

    Gasoline and Diesel Fuel Update (EIA)

    All Petrolem Reports U.S. Fuel Ethanol Plant Production Capacity Release Date: June 29, ... This is the sixth release of the U.S. Energy Information Administration data on fuel ...

  4. Fuels Technologies | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Fuels Technologies Fuels Technologies Overview of DOE Fuels Technologies R&D activities, including fuels for advanced combustion engines, advanced petroleum-based and non-petroleum based fuels, and biofuels. deer08_stork.pdf (644.47 KB) More Documents & Publications Mid-Level Ethanol Blends Mid-Level Ethanol Blends Test Program Effects of Intermediate Ethanol Blends on Legacy Vehicles and Small Non-Road Engines, Report 1 … Updated Feb 2009

  5. Development of an SI DI Ethanol Optimized Flex Fuel Engine Using...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    an SI DI Ethanol Optimized Flex Fuel Engine Using Advanced Valvetrain Development of an SI DI Ethanol Optimized Flex Fuel Engine Using Advanced Valvetrain Presentation given at the ...

  6. Making Better Use of Ethanol as a Transportation Fuel With "Renewable...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Making Better Use of Ethanol as a Transportation Fuel With "Renewable Super Premium" Making Better Use of Ethanol as a Transportation Fuel With "Renewable Super Premium" Breakout ...

  7. Effects of Intermediate Ethanol Blends on Legacy Vehicles and Small Non-Road Engines, Report 1 - Updated

    SciTech Connect (OSTI)

    Knoll, K.; West, B.; Clark, W.; Graves, R.; Orban, J.; Przesmitzki, S.; Theiss, T.

    2009-02-01

    Intended for policymakers and others who make decisions about, and set guidelines for, the proper use of intermediate ethanol blends such as E20 in both vehicle engines and other engine types.

  8. Vehicle Technologies Office: Intermediate Ethanol Blends | Department of

    Broader source: Energy.gov (indexed) [DOE]

    | Department of Energy For biofuels to succeed in the marketplace, they must be easy to use with a minimum of problems. The Vehicle Technologies Office has collaborated with industry to test biofuel samples and improve both their quality and consistency over time. Unfortunately, in the mid-2000s, a substantial percentage of biodiesel sold did not meet fuel quality specifications and caused vehicles' filters to clog. To improve the quality of biodiesel, VTO partnered with the National

  9. Technical Issues Associated With the Use of Intermediate Ethanol Blends (>E10) in the U.S. Legacy Fleet

    SciTech Connect (OSTI)

    Rich, Bechtold; Thomas, John F; Huff, Shean P; Szybist, James P; West, Brian H; Theiss, Timothy J; Timbario, Tom; Goodman, Marc

    2007-08-01

    The Oak Ridge National Laboratory (ORNL) supports the U.S. Department of Energy (DOE) in assessing the impact of using intermediate ethanol blends (E10 to E30) in the legacy fleet of vehicles in the U.S. fleet. The purpose of this report is to: (1) identify the issues associated with intermediate ethanol blends with an emphasis on the end-use or vehicle impacts of increased ethanol levels; (2) assess the likely severity of the issues and whether they will become more severe with higher ethanol blend levels, or identify where the issue is most severe; (3) identify where gaps in knowledge exist and what might be required to fill those knowledge gaps; and (4) compile a current and complete bibliography of key references on intermediate ethanol blends. This effort is chiefly a critical review and assessment of available studies. Subject matter experts (authors and selected expert contacts) were consulted to help with interpretation and assessment. The scope of this report is limited to technical issues. Additional issues associated with consumer, vehicle manufacturer, and regulatory acceptance of ethanol blends greater than E10 are not considered. The key findings from this study are given.

  10. Alternative Fuels Data Center

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Biofuel Specifications Ethanol-blended gasoline must conform to ASTM D4814, E85 must conform to ASTM D4806, and biodiesel-blended fuel containing at least 6%, but no more than 20%, ...

  11. INVESTIGATION ON THE FLAME EXTINCTION LIMIT OF FUEL BLENDS

    SciTech Connect (OSTI)

    Ahsan R. Choudhuri

    2005-02-01

    Lean flame extinction limits of binary fuel mixtures of methane (CH{sub 4}), propane (C{sub 3}H{sub 8}), and ethane (C{sub 2}H{sub 6}) were measured using a twin-flame counter-flow burner. Experiments were conducted to generate an extinction equivalence ratio vs. global stretch rate plot and an extrapolation method was used to calculate the equivalence ratio corresponding to an experimentally unattainable zero-stretch condition. The foregoing gases were selected because they are the primary constitutes of natural gas, which is the primary focus of the present study. To validate the experimental setup and methodology, the flame extinction limit of pure fuels at zero stretch conditions were also estimated and compared with published values. The lean flame extinction limits of methane (f{sub ext} = 4.6%) and propane (f{sub ext} = 2.25%) flames measured in the present study agreed with the values reported in the literature. It was observed that the flame extinction limit of fuel blends have a polynomial relation with the concentration of component fuels in the mixture. This behavior contradicts with the commonly used linear Le Chatelier's approximation. The experimentally determined polynomial relations between the flame extinction limits of fuel blends (i.e. methane-propane and methane-ethane) and methane concentration are as follows: (1) Methane-Propane--%f{sub ext} = (1.05 x 10{sup -9}) f{sup 5}-(1.3644 x 10{sup -7}) f{sup 4}+(6.40299 x 10{sup -6}) f{sup 3}-(1.2108459 x 10{sup -4}) f{sup 2}+(2.87305329 x 10{sup -3}) f+2.2483; (2) Methane-Ethane--%f{sub ext} = (2.1 x 10{sup -9})f{sup 5}-(3.5752 x 10{sup -7}) f{sup 4}+(2.095425 x 10{sup -5}) f{sup 3}-(5.037353 x 10{sup -4}) f{sup 2} + 6.08980409 f + 2.8923. Where f{sub ext} is the extinction limits of methane-propane and methane-ethane fuel blends, and f is the concentration (% volume) of methane in the fuel mixture. The relations were obtained by fitting fifth order curve (polynomial regression) to experimentally

  12. Fact #679: June 13, 2011 U.S. Imports of Fuel Ethanol Drop Sharply

    Broader source: Energy.gov [DOE]

    U.S. imports of fuel ethanol were low until 2004 when imports began to rise sharply. By 2006 imports of fuel ethanol reached a record high of 735.8 million gallons. As domestic supply of fuel...

  13. Alternative Fuels Data Center

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Alternative Fuel Use and Vehicle Acquisition Requirements State agency fleets with more than 15 vehicles, excluding emergency and law enforcement vehicles, may not purchase or lease a motor vehicle unless the vehicle uses compressed or liquefied natural gas, propane, ethanol or fuel blends of at least 85% ethanol (E85), methanol or fuel blends of at least 85% methanol (M85), biodiesel or fuel blends of at least 20% biodiesel (B20), or electricity (including plug-in hybrid electric vehicles).

  14. Characterization of Dual-Fuel Reactivity Controlled Compression Ignition (RCCI) Using Hydrated Ethanol and Diesel Fuel

    Broader source: Energy.gov [DOE]

    This study uses numerical simulations to explore the use of wet ethanol as the low-reactivity fuel and diesel as the high-reactivity fuel for RCCI operation in a heavy-duty diesel engine.

  15. Alternative Fuels Data Center

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Ethanol Fuel Blend Tax Rate The tax rate on fuel containing ethanol is $0.06 per gallon less than the tax rate on other motor fuels in certain geographic areas. This reduced rate is in effect during months ethanol fuel blends must be sold, transferred, or used to operate motor vehicles to reduce carbon monoxide emissions and attain federal or state air quality standards. (Reference Alaska Statutes 43.40.01

  16. Alternative Fuels Data Center

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Ethanol Fuel Blend Standard At least 85% of gasoline supplied to a retailer or sold in Hawaii must contain a minimum of 10% ethanol (E10), unless the Director determines that...

  17. Alternative Fuels Data Center: Status Update: E25 Dispensers Certified, E15

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Warranty Upgraded, and Testing on Ethanol Blends Continues (May 2010) E25 Dispensers Certified, E15 Warranty Upgraded, and Testing on Ethanol Blends Continues (May 2010) to someone by E-mail Share Alternative Fuels Data Center: Status Update: E25 Dispensers Certified, E15 Warranty Upgraded, and Testing on Ethanol Blends Continues (May 2010) on Facebook Tweet about Alternative Fuels Data Center: Status Update: E25 Dispensers Certified, E15 Warranty Upgraded, and Testing on Ethanol Blends

  18. Heavy Alcohols as a Fuel Blending Agent for Compression Ignition Engine

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Applications | Department of Energy Alcohols as a Fuel Blending Agent for Compression Ignition Engine Applications Heavy Alcohols as a Fuel Blending Agent for Compression Ignition Engine Applications Blends of Phytol and diesel (by volume) were compared against baseline diesel experiments and simulations p-21_ramirez.pdf (351.23 KB) More Documents & Publications HD Applications of Significantly Downsized SI Engines Using Alcohol DI for Knock Avoidance Characterization of Dual-Fuel

  19. EERE Success Story-Algenol Announces Commercial Algal Ethanol Fuel

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Partnership | Department of Energy Algenol Announces Commercial Algal Ethanol Fuel Partnership EERE Success Story-Algenol Announces Commercial Algal Ethanol Fuel Partnership October 21, 2015 - 10:35am Addthis Algenol is a company located in Fort Myers, FL that is working with its unique photosynthetic algae to take carbon dioxide that is in the atmosphere and produce a variety of affordable and sustainable biofuels. The scale-up of this work by Algenol was funded in part by the U.S.

  20. Identification and quantification of organic chemicals in supplemental fuel blends

    SciTech Connect (OSTI)

    Salter, F.

    1996-12-31

    Continental Cement Company, Inc. (Continental) burns waste fuels to supplement coal in firing the kiln. It is to be expected that federal and state agencies want an accounting of the chemicals burned. As rules and regulations become more plentiful, a company such as Continental must demonstrate that it has made a reasonable attempt to identify and quantify many specific organic compounds. The chemicals on the SARA 313 list can change frequently. Also the number and concentrations of compounds that can disqualify a material from consideration as a supplemental fuel at Continental continues to change. A quick and reliable method of identifying and quantifying organics in waste fuel blends is therefore crucial. Using a Hewlett-Packard 5972 GC/MS system Continental has developed a method of generating values for the total weight of compounds burned. A similar procedure is used to verify that waste streams meet Continental`s acceptance criteria.

  1. Fuel Economy and Emmissions of the Ethanol-Optimized Saab 9-5...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Fuel Economy and Emmissions of the Ethanol-Optimized Saab 9-5 Biopower Fuel Economy and Emmissions of the Ethanol-Optimized Saab 9-5 Biopower This page contains information on the ...

  2. IMPACT OF DME-DIESEL FUEL BLEND PROPERTIES ON DIESEL FUEL INJECTION SYSTEMS

    SciTech Connect (OSTI)

    Elana M. Chapman; Andre L. Boehman; Kimberly Wain; Wallis Lloyd; Joseph M. Perez; Donald Stiver; Joseph Conway

    2002-07-01

    The objectives of this research program are to develop information on lubricity and viscosity improvers and their impact on the wear mechanisms in fuel injectors operating on blends of dimethyl ether (DME) and diesel fuel. This project complements another ongoing project titled ''Development of a Dimethyl Ether (DME)-Fueled Shuttle Bus Demonstration Project''. The objectives of that research and demonstration program are to convert a campus shuttle bus to operation on dimethyl ether, a potential ultra-clean alternative diesel fuel. To accomplish this objective, this project includes laboratory evaluation of a fuel conversion strategy, as well as, field demonstration of the DME-fueled shuttle bus. Since DME is a fuel with no lubricity (i.e., it does not possess the lubricating quality of diesel fuel), conventional fuel delivery and fuel injection systems are not compatible with dimethyl ether. Therefore, to operate a diesel engine on DME one must develop a fuel-tolerant injection system, or find a way to provide the necessary lubricity to the DME. In the shuttle bus project, they have chosen the latter strategy in order to achieve the objective with minimal need to modify the engine. The strategy is to blend DME with diesel fuel, to obtain the necessary lubricity to protect the fuel injection system and to achieve low emissions. In this project, they have sought to develop methods for extending the permissible DME content in the DME-diesel blends without experiencing rapid injector failure due to wear. To date, the activities have covered two areas: development of a high-pressure lubricity test apparatus for studies of lubricity and viscosity improvers and development of an injector durability stand for evaluation of wear rates in fuel injectors. This report provides summaries of the progress toward completion of both experimental systems and a summary of the plan for completion of the project objectives.

  3. Ethanol Production for Automotive Fuel Usage

    SciTech Connect (OSTI)

    Lindemuth, T.E.; Stenzel, R.A.; Yim, Y.J.; Yu, J.

    1980-01-31

    The conceptual design of the 20 million gallon per year anhydrous ethanol facility a t Raft River has been completed. The corresponding geothermal gathering, extraction and reinjection systems to supply the process heating requirement were also completed. The ethanol facility operating on sugar beets, potatoes and wheat will share common fermentation and product recovery equipment. The geothermal fluid requirement will be approximately 6,000 gpm. It is anticipated that this flow will be supplied by 9 supply wells spaced at no closer than 1/4 mile in order to prevent mutual interferences. The geothermal fluid will be flashed in three stages to supply process steam at 250 F, 225 F and 205 F for various process needs. Steam condensate plus liquid remaining after the third flash will all be reinjected through 9 reinjection wells. The capital cost estimated for this ethanol plant employing all three feedstocks is $64 million. If only a single feedstock were used (for the same 20 mm gal/yr plant) the capital costs are estimated at $51.6 million, $43.1 million and $40. 5 million for sugar beets, potatoes and wheat respectively. The estimated capital cost for the geothermal system is $18 million.

  4. Alternative Fuels Data Center: Goss' Garage Provides Tips for Using Ethanol

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    in Classic Cars Goss' Garage Provides Tips for Using Ethanol in Classic Cars to someone by E-mail Share Alternative Fuels Data Center: Goss' Garage Provides Tips for Using Ethanol in Classic Cars on Facebook Tweet about Alternative Fuels Data Center: Goss' Garage Provides Tips for Using Ethanol in Classic Cars on Twitter Bookmark Alternative Fuels Data Center: Goss' Garage Provides Tips for Using Ethanol in Classic Cars on Google Bookmark Alternative Fuels Data Center: Goss' Garage Provides

  5. IMPACT OF DME-DIESEL FUEL BLEND PROPERTIES ON DIESEL FUEL INJECTION SYSTEMS

    SciTech Connect (OSTI)

    Elana M. Chapman; Andre Boehman; Kimberly Wain; Wallis Lloyd; Joseph M. Perez; Donald Stiver; Joseph Conway

    2004-04-01

    The objectives of this research program are to develop information on lubricity and viscosity improvers and their impact on the wear mechanisms in fuel injectors operating on blends of dimethyl ether (DME) and diesel fuel. Since DME is a fuel with no lubricity (i.e., it does not possess the lubricating quality of diesel fuel), conventional fuel delivery and fuel injection systems are not compatible with dimethyl ether. Therefore, to operate a diesel engine on DME one must develop a fuel-tolerant injection system, or find a way to provide the necessary lubricity to the DME. In the shuttle bus project, we have chosen the latter strategy in order to achieve the objective with minimal need to modify the engine. Our strategy is to blend DME with diesel fuel, to obtain the necessary lubricity to protect the fuel injection system and to achieve low emissions. In this project, we have sought to develop methods for extending the permissible DME content in the DME-diesel blends without experiencing rapid injector failure due to wear. Our activities have covered three areas: examination of the impact of lubricity additives on the viscosity of DME, development of a high-pressure lubricity test apparatus for studies of lubricity and viscosity improvers and development of an injector durability stand for evaluation of wear rates in fuel injectors. The first two of these areas have resulted in valuable information about the limitations of lubricity and viscosity additives that are presently available in terms of their impact on the viscosity of DME and on wear rates on injector hardware. The third area, that of development of an injector durability test stand, has not resulted in a functioning experiment. Some information is provided in this report to identify the remaining tasks that need to be performed to make the injector stand operational. The key observations from the work are that when blended at 25 wt.% in either diesel fuel or Biodiesel fuel, DME requires more than 5 wt

  6. IMPACT OF DME-DIESEL FUEL BLEND PROPERTIES ON DIESEL FUEL INJECTION SYSTEMS

    SciTech Connect (OSTI)

    Elana M. Chapman; Andre Boehman; Kimberly Wain; Wallis Lloyd; Joseph M. Perez; Donald Stiver; Joseph Conway

    2003-06-01

    The objectives of this research program are to develop information on lubricity and viscosity improvers and their impact on the wear mechanisms in fuel injectors operating on blends of dimethyl ether (DME) and diesel fuel. Since DME is a fuel with no lubricity (i.e., it does not possess the lubricating quality of diesel fuel), conventional fuel delivery and fuel injection systems are not compatible with dimethyl ether. Therefore, to operate a diesel engine on DME one must develop a fuel-tolerant injection system, or find a way to provide the necessary lubricity to the DME. In the shuttle bus project, we have chosen the latter strategy in order to achieve the objective with minimal need to modify the engine. Our strategy is to blend DME with diesel fuel, to obtain the necessary lubricity to protect the fuel injection system and to achieve low emissions. In this project, we have sought to develop methods for extending the permissible DME content in the DME-diesel blends without experiencing rapid injector failure due to wear. To date, our activities have covered three areas: examination of the impact of lubricity additives on the viscosity of DME, development of a high-pressure lubricity test apparatus for studies of lubricity and viscosity improvers and development of an injector durability stand for evaluation of wear rates in fuel injectors. This report provides summaries of the progress toward evaluation of the viscosity impacts of lubricity additives, completion of both experimental systems and a summary of the plan for completion of the project objectives.

  7. Ethanol Fuels Incentives Applied in the U.S.: Reviewed from California's Perspective

    SciTech Connect (OSTI)

    MacDonald, Tom

    2004-01-01

    This report describes measures employed by state governments and by the federal government to advance the production and use of ethanol fuel in the United States. The future of ethanol as an alternative transportation fuel poses a number of increasingly-important issues and decisions for California government, as the state becomes a larger consumer, and potentially a larger producer, of ethanol.

  8. Fuel Economy and Emmissions of the Ethanol-Optimized Saab 9-5 Biopower |

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Department of Energy Fuel Economy and Emmissions of the Ethanol-Optimized Saab 9-5 Biopower Fuel Economy and Emmissions of the Ethanol-Optimized Saab 9-5 Biopower This page contains information on the recently released BioPower engines. analysis_saab2007.pdf (248.89 KB) More Documents & Publications Enabling High Efficiency Ethanol Engines Flexible Fuel Vehicles: Providing a Renewable Fuel Choice, Vehicle Technologies Program (VTP) (Fact Sheet) The Impact of Low Octane Hydrocarbon

  9. NREL: State and Local Governments - Renewable Fuel Standards

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    to RFS effectiveness: Imposing stringency to require use of higher blends of ethanol or alternative fuels. Adopting an implementation plan that can ease measurement and...

  10. Missouri Renewable Fuel Standard Brochure

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    The Missouri Renewable Fuel Standard requires ethanol in most gasoline beginning January 1, 2008. ARE YOU READY? TEN THINGS MISSOURI TANK OWNERS AND OPERATORS NEED TO KNOW ABOUT ETHANOL 1. Ethanol is a type of alcohol made usually from corn in Missouri and other states. 2. E10 is a blend of 10% ethanol and 90% unleaded gasoline. E85 is a blend of 75% to 85% fuel ethanol and 25% to 15% unleaded gasoline. Blends between E10 and E85 are not allowed to be sold at retail. 3. Any vehicle or small

  11. Microbial fuel cell treatment of ethanol fermentation process water

    DOE Patents [OSTI]

    Borole, Abhijeet P.

    2012-06-05

    The present invention relates to a method for removing inhibitor compounds from a cellulosic biomass-to-ethanol process which includes a pretreatment step of raw cellulosic biomass material and the production of fermentation process water after production and removal of ethanol from a fermentation step, the method comprising contacting said fermentation process water with an anode of a microbial fuel cell, said anode containing microbes thereon which oxidatively degrade one or more of said inhibitor compounds while producing electrical energy or hydrogen from said oxidative degradation, and wherein said anode is in electrical communication with a cathode, and a porous material (such as a porous or cation-permeable membrane) separates said anode and cathode.

  12. Impacts of Biodiesel Fuel Blends Oil Dilution on Light-Duty Diesel Engine Operation

    SciTech Connect (OSTI)

    Thornton, M. J.; Alleman, T. L.; Luecke, J.; McCormick, R. L.

    2009-08-01

    Assesses oil dilution impacts on a diesel engine operating with a diesel particle filter, NOx storage, a selective catalytic reduction emission control system, and a soy-based 20% biodiesel fuel blend.

  13. CNG, Hydrogen, CNG-Hydrogen Blends - Critical Fuel Properties and Behavior

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    | Department of Energy CNG, Hydrogen, CNG-Hydrogen Blends - Critical Fuel Properties and Behavior CNG, Hydrogen, CNG-Hydrogen Blends - Critical Fuel Properties and Behavior Presentation given by Jay Keller of Sandia National Laboratories at the CNG and Hydrogen Lessons Learned Workshop on December 10, 2009 cng_h2_workshop_2_keller.pdf (3.5 MB) More Documents & Publications US DRIVE Hydrogen Codes and Standards Technical Team Roadmap Hydrogen Release Behavior Overview of HyRAM (Hydrogen

  14. Infrastructure Requirements for an Expanded Fuel Ethanol Industry

    SciTech Connect (OSTI)

    Reynolds, Robert E.

    2002-01-15

    This report provides technical information specifically related to ethanol transportation, distribution, and marketing issues. This report required analysis of the infrastructure requirements for an expanded ethanol industry.

  15. High Ethanol Fuel Endurance: A Study of the Effects of Running Gasoline with 15% Ethanol Concentration in Current Production Outboard Four-Stroke Engines and Conventional Two-Stroke Outboard Marine Engines

    SciTech Connect (OSTI)

    Hilbert, D.

    2011-10-01

    Three Mercury Marine outboard marine engines were evaluated for durability using E15 fuel -- gasoline blended with 15% ethanol. Direct comparison was made to operation on E0 (ethanol-free gasoline) to determine the effects of increased ethanol on engine durability. Testing was conducted using a 300-hour wide-open throttle (WOT) test protocol, a typical durability cycle used by the outboard marine industry. Use of E15 resulted in reduced CO emissions, as expected for open-loop, non-feedback control engines. HC emissions effects were variable. Exhaust gas and engine operating temperatures increased as a consequence of leaner operation. Each E15 test engine exhibited some deterioration that may have been related to the test fuel. The 9.9 HP, four-stroke E15 engine exhibited variable hydrocarbon emissions at 300 hours -- an indication of lean misfire. The 300HP, four-stroke, supercharged Verado engine and the 200HP, two-stroke legacy engine tested with E15 fuel failed to complete the durability test. The Verado engine failed three exhaust valves at 285 endurance hours while the 200HP legacy engine failed a main crank bearing at 256 endurance hours. All E0-dedicated engines completed the durability cycle without incident. Additional testing is necessary to link the observed engine failures to ethanol in the test fuel.

  16. Enabling High Efficiency Ethanol Engines

    SciTech Connect (OSTI)

    Szybist, J.; Confer, K.

    2011-03-01

    Delphi Automotive Systems and ORNL established this CRADA to explore the potential to improve the energy efficiency of spark-ignited engines operating on ethanol-gasoline blends. By taking advantage of the fuel properties of ethanol, such as high compression ratio and high latent heat of vaporization, it is possible to increase efficiency with ethanol blends. Increasing the efficiency with ethanol-containing blends aims to remove a market barrier of reduced fuel economy with E85 fuel blends, which is currently about 30% lower than with petroleum-derived gasoline. The same or higher engine efficiency is achieved with E85, and the reduction in fuel economy is due to the lower energy density of E85. By making ethanol-blends more efficient, the fuel economy gap between gasoline and E85 can be reduced. In the partnership between Delphi and ORNL, each organization brought a unique and complementary set of skills to the project. Delphi has extensive knowledge and experience in powertrain components and subsystems as well as overcoming real-world implementation barriers. ORNL has extensive knowledge and expertise in non-traditional fuels and improving engine system efficiency for the next generation of internal combustion engines. Partnering to combine these knowledge bases was essential towards making progress to reducing the fuel economy gap between gasoline and E85. ORNL and Delphi maintained strong collaboration throughout the project. Meetings were held regularly, usually on a bi-weekly basis, with additional reports, presentations, and meetings as necessary to maintain progress. Delphi provided substantial hardware support to the project by providing components for the single-cylinder engine experiments, engineering support for hardware modifications, guidance for operational strategies on engine research, and hardware support by providing a flexible multi-cylinder engine to be used for optimizing engine efficiency with ethanol-containing fuels.

  17. Enabling High Efficiency Ethanol Engines

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    High Efficiency Ethanol Engines (VSSP 12) Presented by Robert Wagner Oak Ridge National ... advantage of the unique properties of ethanol and ethanol-gasoline blends.. 3 Managed ...

  18. Effects of ethanol on small engines and the environment

    SciTech Connect (OSTI)

    Bettis, M.D.

    1995-01-09

    With the support of the Missouri Corn Merchandising Council and the Department of Energy, Northwest Missouri State University conducted an applied research project to investigate the effects of the commercially available ethanol/gasoline fuel blend on small engines. The study attempted to identify any problems when using the 10% ethanol/gasoline blend in engines designed for gasoline and provide solutions to the problems identified. Fuel economy, maximum power, internal component wear, exhaust emissions and engine efficiency were studied.

  19. Fuel Tables.indd

    Annual Energy Outlook [U.S. Energy Information Administration (EIA)]

    ... Where shown, (s) Btu value less than 0.05. Notes: Motor gasoline estimates include fuel ethanol blended into motor gasoline. * Totals may not equal sum of components due to ...

  20. Fuel Tables.indd

    Gasoline and Diesel Fuel Update (EIA)

    ... 3,709.1 863,909.0 Where shown, (s) Expenditure value less than 0.05. Notes: Total petroleum includes fuel ethanol blended into motor gasoline. * Totals may not equal sum

  1. Methylal and Methylal-Diesel Blended Fuels from Use In Compression-Ignition Engines

    SciTech Connect (OSTI)

    Keith D. Vertin; James M. Ohi; David W. Naegeli; Kenneth H. Childress; Gary P. Hagen; Chris I. McCarthy; Adelbert S. Cheng; Robert W. Dibble

    1999-05-05

    Gas-to-liquids catalytic conversion technologies show promise for liberating stranded natural gas reserves and for achieving energy diversity worldwide. Some gas-to-liquids products are used as transportation fuels and as blendstocks for upgrading crude derived fuels. Methylal (CH{sub 3}-O-CH{sub 2}-O-CH{sub 3}) also known as dimethoxymethane or DMM, is a gas-to-liquid chemical that has been evaluated for use as a diesel fuel component. Methylal contains 42% oxygen by weight and is soluble in diesel fuel. The physical and chemical properties of neat methylal and for blends of methylal in conventional diesel fuel are presented. Methylal was found to be more volatile than diesel fuel, and special precautions for distribution and fuel tank storage are discussed. Steady state engine tests were also performed using an unmodified Cummins 85.9 turbocharged diesel engine to examine the effect of methylal blend concentration on performance and emissions. Substantial reductions of particulate matter emissions h ave been demonstrated 3r IO to 30% blends of methylal in diesel fuel. This research indicates that methylal may be an effective blendstock for diesel fuel provided design changes are made to vehicle fuel handling systems.

  2. FRACTIONATION OF LIGNOCELLULOSIC BIOMASS FOR FUEL-GRADE ETHANOL PRODUCTION

    SciTech Connect (OSTI)

    F.D. Guffey; R.C. Wingerson

    2002-10-01

    PureVision Technology, Inc. (PureVision) of Fort Lupton, Colorado is developing a process for the conversion of lignocellulosic biomass into fuel-grade ethanol and specialty chemicals in order to enhance national energy security, rural economies, and environmental quality. Lignocellulosic-containing plants are those types of biomass that include wood, agricultural residues, and paper wastes. Lignocellulose is composed of the biopolymers cellulose, hemicellulose, and lignin. Cellulose, a polymer of glucose, is the component in lignocellulose that has potential for the production of fuel-grade ethanol by direct fermentation of the glucose. However, enzymatic hydrolysis of lignocellulose and raw cellulose into glucose is hindered by the presence of lignin. The cellulase enzyme, which hydrolyzes cellulose to glucose, becomes irreversibly bound to lignin. This requires using the enzyme in reagent quantities rather than in catalytic concentration. The extensive use of this enzyme is expensive and adversely affects the economics of ethanol production. PureVision has approached this problem by developing a biomass fractionator to pretreat the lignocellulose to yield a highly pure cellulose fraction. The biomass fractionator is based on sequentially treating the biomass with hot water, hot alkaline solutions, and polishing the cellulose fraction with a wet alkaline oxidation step. In September 2001 PureVision and Western Research Institute (WRI) initiated a jointly sponsored research project with the U.S. Department of Energy (DOE) to evaluate their pretreatment technology, develop an understanding of the chemistry, and provide the data required to design and fabricate a one- to two-ton/day pilot-scale unit. The efforts during the first year of this program completed the design, fabrication, and shakedown of a bench-scale reactor system and evaluated the fractionation of corn stover. The results from the evaluation of corn stover have shown that water hydrolysis prior to

  3. Mixed waste paper to ethanol fuel. A technology, market, and economic assessment for Washington

    SciTech Connect (OSTI)

    Not Available

    1991-01-01

    The objectives of this study were to evaluate the use of mixed waste paper for the production of ethanol fuels and to review the available conversion technologies, and assess developmental status, current and future cost of production and economics, and the market potential. This report is based on the results of literature reviews, telephone conversations, and interviews. Mixed waste paper samples from residential and commercial recycling programs and pulp mill sludge provided by Weyerhauser were analyzed to determine the potential ethanol yields. The markets for ethanol fuel and the economics of converting paper into ethanol were investigated.

  4. Feasibility study for a 10-MM-GPY fuel ethanol plant, Brady Hot Springs,

    Office of Scientific and Technical Information (OSTI)

    Nevada. Volume 1. Process and plant design (Technical Report) | SciTech Connect -MM-GPY fuel ethanol plant, Brady Hot Springs, Nevada. Volume 1. Process and plant design Citation Details In-Document Search Title: Feasibility study for a 10-MM-GPY fuel ethanol plant, Brady Hot Springs, Nevada. Volume 1. Process and plant design An investigation was performed to determine the technical and economic viability of constructing and operating a geothermally heated, biomass, motor fuel alcohol plant

  5. Ethanol as a fuel: design and construction of an ethanol production facility for a farm

    SciTech Connect (OSTI)

    Pelger, E.C. III

    1981-01-01

    This dissertation describes the production of ethanol from biomass. It includes descriptions of photosynthesis, feedstock preparation, fermentation, distillation and end use. Technical problems and limitations as well as social, political, and economic aspects of producing ethanol are addressed. The potential of small-scale ethanol production and specific case studies are reviewed. A low-cost efficient design for a single farm ethanol facility is included. (DMC)

  6. Feedstock selection for small- and intermediate-scale fuel ethanol distilleries

    SciTech Connect (OSTI)

    Meo, M.

    1985-07-01

    A variety of commercial and experimental starch- and sugar-rich crops were evaluated for their suitability as feedstocks for both small-scale, on-farm and intermediate-scale, off-farm fuel ethanol production in California's Sacramento Valley. Solutions of linear programming models indicated that sweet sorghum is the least-cost feedstock for on-farm production of 50,000 gallons of fuel ethanol per year. Fodder beet proved to be the least-cost feedstock for off-farm production of 1 million gallons of fuel ethanol per year.

  7. Renewable Fuels Association’s National Ethanol Conference

    Broader source: Energy.gov [DOE]

    Mark Elless, a BETO technology manager, will be representing BETO at the 20th anniversary of the National Ethanol Conference.

  8. Feasibility study for a 10 MM GPY fuel ethanol plant, Brady Hot Springs,

    Office of Scientific and Technical Information (OSTI)

    Nevada. Volume II. Geothermal resource, agricultural feedstock, markets and economic viability (Technical Report) | SciTech Connect MM GPY fuel ethanol plant, Brady Hot Springs, Nevada. Volume II. Geothermal resource, agricultural feedstock, markets and economic viability Citation Details In-Document Search Title: Feasibility study for a 10 MM GPY fuel ethanol plant, Brady Hot Springs, Nevada. Volume II. Geothermal resource, agricultural feedstock, markets and economic viability The issues

  9. Blender Pump Fuel Survey: CRC Project E-95

    SciTech Connect (OSTI)

    Alleman, T. L.

    2011-07-01

    To increase the number of ethanol blends available in the United States, several states have 'blender pumps' that blend gasoline with flex-fuel vehicle (FFV) fuel. No specification governs the properties of these blended fuels, and little information is available about the fuels sold at blender pumps. No labeling conventions exist, and labeling on the blender pumps surveyed was inconsistent.; The survey samples, collected across the Midwestern United States, included the base gasoline and FFV fuel used in the blends as well as the two lowest blends offered at each station. The samples were tested against the applicable ASTM specifications and for critical operability parameters. Conventional gasoline fuels are limited to 10 vol% ethanol by the U.S. EPA. The ethanol content varied greatly in the samples. Half the gasoline samples contained some ethanol, while the other half contained none. The FFV fuel samples were all within the specification limits. No pattern was observed for the blend content of the higher ethanol content samples at the same station. Other properties tested were specific to higher-ethanol blends. This survey also tested the properties of fuels containing ethanol levels above conventional gasoline but below FFV fuels.

  10. Indiana Brings Alternative Fuels to the Forefront | Department...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    of technologies and fuels in both light and heavy-duty vehicles, including natural gas, propane, hybrid electric drive, and E85 (a fuel blend containing up to 85% ethanol)....

  11. Detailed HCCI Exhaust Speciation- ORNL Reference Fuel Blends

    Broader source: Energy.gov [DOE]

    ·Accurately measure exhaust profile from an HCCI engine with a variety of fuels and create a better understanding of HCCI engine emissions.

  12. NREL UL Fuel Dispensing Infrastructure Intermediate Blends Performance Testing (Presentation)

    SciTech Connect (OSTI)

    Moriarty, K.; Clark, W.

    2011-01-01

    Presentation provides an overview of NREL's project to determine compatibility and safe performance of installed fuel dispensing infrastructure with E15.

  13. Volatility of Gasoline and Diesel Fuel Blends for Supercritical...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    More Documents & Publications Preparation, Injection and Combustion of Supercritical Fluids Evaluation of Biodiesel Fuels from Supercritical Fluid Processing with the Advanced ...

  14. U.S. Fuel Ethanol Plant Production Capacity

    Annual Energy Outlook [U.S. Energy Information Administration (EIA)]

    Note: In previous ethanol capacity reports, EIA included data on maximum sustainable ... The collection and publication efforts for the maximum sustainable data value were ...

  15. Alternative Fuels Data Center

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Alternative Fuel Definition The following fuels are defined as alternative fuels by the Energy Policy Act (EPAct) of 1992: pure methanol, ethanol, and other alcohols; blends of 85% or more of alcohol with gasoline; natural gas and liquid fuels domestically produced from natural gas; liquefied petroleum gas (propane); coal-derived liquid fuels; hydrogen; electricity; pure biodiesel (B100); fuels, other than alcohol, derived from biological materials; and P-Series fuels. In addition, the U.S.

  16. Low-temperature pyrolysis of coal to produce diesel-fuel blends

    SciTech Connect (OSTI)

    Shafer, T.B.; Jett, O.J.; Wu, J.S.

    1982-10-01

    Low-temperature (623 to 773/sup 0/K) coal pyrolysis was investigated in a bench-scale retort. Factorially designed experiments were conducted to determine the effects of temperature, coal-particle size, and nitrogen flow rate on the yield of liquid products. Yield of condensable organic products relative to the proximate coal volatile matter increased by 3.1 and 6.4 wt % after increasing nitrogen purge flow rate from 0.465 to 1.68 L/min and retort temperature from 623 to 723/sup 0/K, respectively. The liquid product may be suitable for blending with diesel fuel. The viscosity and density of coal liquids produced at 723/sup 0/K were compared with those of diesel fuel. The coal liquids had a higher carbon-to-hydrogen ratio and a lower aliphatic-to-aromatic ratio than premium quality No. 2 diesel fuel. It was recommended that liquids from coal pyrolysis be blended with diesel fuel to determine stability of the mixture and performance of the blend in internal combustion engines.

  17. Cold start characteristics of ethanol as an automobile fuel

    DOE Patents [OSTI]

    Greiner, Leonard

    1982-01-01

    An alcohol fuel burner and decomposer in which one stream of fuel is preheated by passing it through an electrically heated conduit to vaporize the fuel, the fuel vapor is mixed with air, the air-fuel mixture is ignited and combusted, and the combustion gases are passed in heat exchange relationship with a conduit carrying a stream of fuel to decompose the fuel forming a fuel stream containing hydrogen gas for starting internal combustion engines, the mass flow of the combustion gas being increased as it flows in heat exchange relationship with the fuel carrying conduit, is disclosed.

  18. Alternative Fuels Data Center

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Biofuel Compatibility Requirements for Underground Storage Tanks (USTs) Fueling station owners and operators must notify the appropriate state and local implementing agencies at least 30 days before switching USTs to store ethanol blends greater than 10%, biodiesel blends greater than 20%, or any other regulated fuel the agency has identified. This notification timeframe allows agencies to request information on UST compatibility before the owner or operator stores the fuel. Owners and operators

  19. Alternative Fuels Data Center

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Alternative Fuel and Alternative Fuel Vehicle (AFV) Fund The North Carolina State Energy Office administers the Energy Policy Act (EPAct) Credit Banking and Selling Program, which enables the state to generate funds from the sale of EPAct 1992 credits. The funds that EPAct credit sales generate are deposited into the Alternative Fuel Revolving Fund (Fund) for state agencies to offset the incremental costs of purchasing biodiesel blends of at least 20% (B20) or ethanol blends of at least 85%

  20. The ethanol heavy-duty truck fleet demonstration project

    SciTech Connect (OSTI)

    1997-06-01

    This project was designed to test and demonstrate the use of a high- percentage ethanol-blended fuel in a fleet of heavy-duty, over-the- road trucks, paying particular attention to emissions, performance, and repair and maintenance costs. This project also represents the first public demonstration of the use of ethanol fuels as a viable alternative to conventional diesel fuel in heavy-duty engines.

  1. Handbook for Handling, Storing, and Dispensing E85 and Other Ethanol-Gasoline Blends (Brochure), Clean Cities, Energy Efficiency & Renewable Energy (EERE)

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    DOE/GO-102016-4854 February 2016 Handbook for Handling, Storing, and Dispensing E85 and Other Ethanol-Gasoline Blends Disclaimer This report was prepared as an account of work sponsored by an agency of the United States government. Neither the United States government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or

  2. Microbial Fuel Cells for Recycle of Process Water from Cellulosic Ethanol

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Biorefineries - Energy Innovation Portal Microbial Fuel Cells for Recycle of Process Water from Cellulosic Ethanol Biorefineries Oak Ridge National Laboratory Contact ORNL About This Technology Technology Marketing SummaryA method was invented at ORNL for removing inhibitor compounds from process water in biomass-to-ethanol production. This invention can also be used to produce power for other industrial processes. DescriptionLarge amounts of water are used in the processing of cellulosic

  3. A NMR-Based Carbon-Type Analysis of Diesel Fuel Blends From Various Sources

    SciTech Connect (OSTI)

    Bays, J. Timothy; King, David L.

    2013-05-10

    spectroscopy for the detailed characterization and comparison of fuels and fuel blends.

  4. Alternative Fuels Data Center

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Ethanol Fueling Infrastructure Grants The Minnesota Corn Research & Promotion Council and the Minnesota Department of Agriculture offer funding assistance to fuel retailers for the installation of equipment to dispense ethanol fuel blends ranging from E15 through E85. Grant amounts are based on the extent to which the installation meets project priorities. For more information, refer to the Clean Air Choice E85 Retailer Information website. Point of Contact Kelly Marczak Director American

  5. Demonstration and implementation of ethanol as an aviation fuel. Final report

    SciTech Connect (OSTI)

    1998-01-01

    The objectives of the program were to demonstrate the viability of ethanol as an aviation fuel at appropriate locations and audiences in the participating Biomass Energy Program Regions, and to promote implementation projects in the area. Seven demonstrations were to be performed during the Summer 1995 through December 1996 period. To maximize the cost effectiveness of the program, additional corporate co-sponsorships were sought at each demonstration site and the travel schedule was arranged to take advantage of appropriate events taking place in the vicinity of the schedule events or enroute. This way, the original funded amount was stretched to cover another year of activities increasing the number of demonstrations from seven to thirty-nine. While the Renewable Aviation Fuels Development Center (RAFDC) contract focused on ethanol as an aviation fuel, RAFDC also promoted the broader use of ethanol as a transportation fuel. The paper summarizes locations and occasions, and gives a brief description of each demonstration/exhibit/presentation held during the term of the project. Most of the demonstrations took place at regularly scheduled air shows, such as the Oshkosh, Wisconsin Air Show. The paper also reviews current and future activities in the areas of certification, emission testing, the international Clean Airports Program, air pollution monitoring with instrumented aircraft powered by renewable fuels, training operation and pilot project on ethanol, turbine fuel research, and educational programs.

  6. Fuel Economy and Emmissions of the Ethanol-Optimized Saab 9-5 Biopower

    Broader source: Energy.gov (indexed) [DOE]

    07-01-3994 Fuel Economy and Emissions of the Ethanol- Optimized Saab 9-5 Biopower Brian H. West, Alberto J. López, Timothy J. Theiss, Ronald L. Graves, John M. Storey and Samuel A. Lewis Oak Ridge National Laboratory ABSTRACT Saab Automobile recently released the BioPower engines, advertised to use increased turbocharger boost and spark advance on ethanol fuel to enhance performance. Specifications for the 2.0 liter turbocharged engine in the Saab 9-5 Biopower 2.0t report 150 hp (112 kW) on

  7. Preliminary report on blending strategies for inert-matrix fuel recycling in LWRs.

    SciTech Connect (OSTI)

    Hoffman, E. A.; Nuclear Engineering Division

    2005-04-29

    Various recycle strategies have been proposed to manage the inventory of transuranics in commercial spent nuclear fuel (CSNF), with a particular goal of increasing the loading capacity of spent fuel and reprocessing wastes in the Yucca Mountain repository. Transuranic recycling in commercial LWRs can be seen as a viable means of slowing the accumulation of transuranics in the nationwide CSNF stockpile. Furthermore, this type of approach is an important first step in demonstrating the benefits of a nuclear fuel cycle which incorporates recycling, such as envisioned for Generation-IV reactor systems under development. Recycling strategies of this sort are not proposed as an attempt to eliminate the need of a geologic nuclear waste repository, but as a means to enhance the usefulness of the repository currently under construction in the U.S., perhaps circumventing the need for a second facility. A US-DOE Secretarial recommendation on the need for the construction of a second geologic repository is required by 2010. The Advanced Fuel Cycle Initiative (AFCI) has supported a breadth of work to evaluate the ideal transuranic separation and recycle strategy. Previous AFCI studies of LWR-based transmutation have considered the benefits of homogeneously recycling plutonium, plutonium and neptunium, and all transuranic (TRU) species. A study of a wide range of hypothetical separation schemes (Pu, Pu+Np, Pu+Np+Am, etc.) with multi-recycling has also been performed, focusing on the proliferation resistance of the various fuel cycles and fuel handling issues. The direct recycle of the recovered TRU from spent inert-matrix fuel (IMF) into new IMF was found to be quite limited due to the rapid burndown of the fissile plutonium. The IMF is very effective at destroying the fissile fraction of the TRU with destruction rates in excess of 80% of the fissile material without recycling the IMF. Blending strategies have been proposed to mitigate the rapid burndown of the fissile plutonium

  8. Fuel cycle evaluations of biomass-ethanol and reformulated gasoline. Volume 1

    SciTech Connect (OSTI)

    Tyson, K.S.

    1993-11-01

    The US Department of Energy (DOE) is using the total fuel cycle analysis (TFCA) methodology to evaluate energy choices. The National Energy Strategy (NES) identifies TFCA as a tool to describe and quantify the environmental, social, and economic costs and benefits associated with energy alternatives. A TFCA should quantify inputs and outputs, their impacts on society, and the value of those impacts that occur from each activity involved in producing and using fuels, cradle-to-grave. New fuels and energy technologies can be consistently evaluated and compared using TFCA, providing a sound basis for ranking policy options that expand the fuel choices available to consumers. This study is limited to creating an inventory of inputs and outputs for three transportation fuels: (1) reformulated gasoline (RFG) that meets the standards of the Clean Air Act Amendments of 1990 (CAAA) using methyl tertiary butyl ether (MTBE); (2) gasohol (E10), a mixture of 10% ethanol made from municipal solid waste (MSW) and 90% gasoline; and (3) E95, a mixture of 5% gasoline and 95% ethanol made from energy crops such as grasses and trees. The ethanol referred to in this study is produced from lignocellulosic material-trees, grass, and organic wastes -- called biomass. The biomass is converted to ethanol using an experimental technology described in more detail later. Corn-ethanol is not discussed in this report. This study is limited to estimating an inventory of inputs and outputs for each fuel cycle, similar to a mass balance study, for several reasons: (1) to manage the size of the project; (2) to provide the data required for others to conduct site-specific impact analysis on a case-by-case basis; (3) to reduce data requirements associated with projecting future environmental baselines and other variables that require an internally consistent scenario.

  9. Federal Test Procedure Emissions Test Results from Ethanol Variable-Fuel Vehicle Chevrolet Luminas

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Federal Test Procedure Emissions Test Results from Ethanol Variable-Fuel Vehicle Chevrolet Luminas Kenneth J. Kelly, Brent K. Bailey, and Timothy C. Coburn National Renewable Energy Laboratory Wendy Clark Automotive Testing Laboratories, Inc. Peter Lissiuk Environmental Research and Development Corp. Presented at Society for Automotive Engineers International Spring Fuels and Lubricants Meeting Dearborn, MI May 6-8, 1996 The work described here was wholly funded by the U.S. Department of Energy,

  10. Fuel Economy and Emissions of the Ethanol-Optimized Saab 9-5 Biopower

    SciTech Connect (OSTI)

    West, Brian H; Lopez Vega, Alberto; Theiss, Timothy J; Graves, Ronald L; Storey, John Morse; Lewis Sr, Samuel Arthur

    2007-01-01

    Saab Automobile recently released the BioPower engines, advertised to use increased turbocharger boost and spark advance on ethanol fuel to enhance performance. Specifications for the 2.0 liter turbocharged engine in the Saab 9-5 Biopower 2.0t report 150 hp on gasoline and a 20% increase to 180 hp on E85 (nominally 85% ethanol, 15% gasoline). While FFVs sold in the U.S. must be emissions certified on Federal Certification Gasoline as well as on E85, the European regulations only require certification on gasoline. Owing to renewed and growing interest in increased ethanol utilization in the U.S., a European-specification 2007 Saab 9-5 Biopower 2.0t was acquired by the Department of Energy and Oak Ridge National Laboratory (ORNL) for benchmark evaluations. Results show that the BioPower vehicle's gasoline equivalent fuel economy on the Federal Test Procedure (FTP) and the Highway Fuel Economy Test (HFET) are on par with similar U.S.-legal flex-fuel vehicles. Regulated and unregulated emissions measurements on the FTP and the US06 aggressive driving test (part of the supplemental FTP) show that despite the lack of any certification testing requirement in Europe on E85 or on the U.S. cycles, the BioPower is within Tier 2, Bin 5 emissions levels (note that full useful life emissions have not been measured) on the FTP, and also within the 4000 mile US06 emissions limits. Emissions of hydrocarbon-based hazardous air pollutants are higher on Federal Certification Gasoline while ethanol and aldehyde emissions are higher on ethanol fuel. The advertised power increase on E85 was confirmed through acceleration tests on the chassis dyno as well as on-road.

  11. Fuel ethanol and South Carolina: a feasibility assessment. Volume II. Detailed report

    SciTech Connect (OSTI)

    1980-07-01

    The feasibility of producing ethanol from carbohydrates in the State of South Carolina is discussed. It is preliminary in the sense that it provides partial answers to some of the questions that exist concerning ethanol production in the state, and is not intended to be a comprehensive treatment of the subject. A great deal more work needs to be done as ethanol fuels become a more significant element in South Carolina's energy mix. The existing carbohydrate resource base in the state is reviewed, the extent to which this base can be increased is estimated, and importation of out-of-state feedstocks to expand the base further is discussed. A discussion of the economics of ethanol production is provided for farm-scale and commercial-sized plants, as is a general discussion of environmental impacts and state permitting and approval requirements. Several other considerations affecting the small-scale producer are addressed, including the use of agricultural residues and manure-derived methane to fuel the ethanol production process. Research needs are identified, and brief case studies for Williamsburg and Orangeburg counties are provided.

  12. Ethanol Basics

    SciTech Connect (OSTI)

    2015-01-30

    Ethanol is a widely-used, domestically-produced renewable fuel made from corn and other plant materials. More than 96% of gasoline sold in the United States contains ethanol. Learn more about this alternative fuel in the Ethanol Basics Fact Sheet, produced by the U.S. Department of Energy's Clean Cities program.

  13. Feasibility study of fuel grade ethanol plant for Alcohol Fuels of Mississippi, Inc. , Vicksburg, Mississippi

    SciTech Connect (OSTI)

    1981-01-01

    The results are presented of a feasibility study performed to determine the technical and economic viability of constructing an alcohol plant utilizing the N.Y.U. continuous acid hydrolysis process to convert wood wastes to fuel grade alcohol. The following is a summary of the results: (1) The proposed site in the Vicksburg Industrial Foundation Corporation Industrial Park is adequate from all standpoints, for all plant capacities envisioned. (2) Local hardwood sawmills can provide adequate feedstock for the facility. The price per dry ton varies between $5 and $15. (3) Sale of fuel ethanol would be made primarily through local distributors and an adequate market exists for the plant output. (4) With minor modifications to the preparation facilities, other waste cellulose materials can also be utilized. (5) There are no anticipated major environmental, health, safety or socioeconomic risks related to the construction and operation of the proposed facility. (6) The discounted cash flow and rate of return analysis indicated that the smallest capacity unit which should be built is the 16 million gallon per year plant, utilizing cogeneration. This facility has a 3.24 year payback. (7) The 25 million gallon per year plant utilizing cogeneration is an extremely attractive venture, with a zero interest break-even point of 1.87 years, and with a discounted rate of return of 73.6%. (8) While the smaller plant capacities are unattractive from a budgetary viewpoint, a prudent policy would dictate that a one million gallon per year plant be built first, as a demonstration facility. This volume contains process flowsheets and maps of the proposed site.

  14. Alternative Fuels Data Center

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Prohibition of the Sale of Ethanol-Blended Gasoline A person or distributor may not offer, sell, or distribute gasoline that contains ethanol at a level greater than 10% (E10) or contains corn-based ethanol as an additive. The prohibition does not take effect until at least ten other states or a number of states with a collective population of 30 million have enacted laws preventing the sale of these fuel blends. (Reference Maine Revised Statutes Title 38, Section 585M and Title 10, Section

  15. Dispensing Equipment Testing with Mid-Level Ethanol/Gasoline Test Fluid: Summary Report

    SciTech Connect (OSTI)

    Boyce, K.; Chapin, J. T.

    2010-11-01

    The National Renewable Energy Laboratory's (NREL) Nonpetroleum-Based Fuel Task addresses the hurdles to commercialization of biomass-derived fuels and fuel blends. One such hurdle is the unknown compatibility of new fuels with current infrastructure, such as the equipment used at service stations to dispense fuel into automobiles. The U.S. Department of Energy's (DOE) Vehicle Technology Program and the Biomass Program have engaged in a joint project to evaluate the potential for blending ethanol into gasoline at levels higher than nominal 10 volume percent. This project was established to help DOE and NREL better understand any potentially adverse impacts caused by a lack of knowledge about the compatibility of the dispensing equipment with ethanol blends higher than what the equipment was designed to dispense. This report provides data about the impact of introducing a gasoline with a higher volumetric ethanol content into service station dispensing equipment from a safety and a performance perspective.

  16. NREL: Transportation Research - Alternative Fuels Characterization

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Alternative Fuels Characterization Find out about other biomass research projects at NREL. NREL alternative fuels projects help overcome technical barriers and expand markets for renewable, biodegradable vehicle fuels. These liquid fuels include higher-level ethanol blends, butanol, biodiesel, renewable diesel, other biomass-derived fuels, and natural gas. By studying the fuel chemistry as well as combustion and emissions impacts of alternative fuels, NREL helps improve engine efficiency, reduce

  17. Feasibility of converting a sugar beet plant to fuel ethanol production

    SciTech Connect (OSTI)

    Hammaker, G S; Pfost, H B; David, M L; Marino, M L

    1981-04-01

    This study was performed to assess the feasibility of producing fuel ethanol from sugar beets. Sugar beets are a major agricultural crop in the area and the beet sugar industry is a major employer. There have been some indications that increasing competition from imported sugar and fructose sugar produced from corn may lead to lower average sugar prices than have prevailed in the past. Fuel ethanol might provide an attractive alternative market for beets and ethanol production would continue to provide an industrial base for labor. Ethanol production from beets would utilize much of the same field and plant equipment as is now used for sugar. It is logical to examine the modification of an existing sugar plant from producing sugar to ethanol. The decision was made to use Great Western Sugar Company's plant at Mitchell as the example plant. This plant was selected primarily on the basis of its independence from other plants and the availability of relatively nearby beet acreage. The potential feedstocks assessed included sugar beets, corn, hybrid beets, and potatoes. Markets were assessed for ethanol and fermentation by-products saleability. Investment and operating costs were determined for each prospective plant. Plants were evaluated using a discounted cash flow technique to obtain data on full production costs. Environmental, health, safety, and socio-economic aspects of potential facilities were examined. Three consulting engineering firms and 3 engineering-construction firms are considered capable of providing the desired turn-key engineering design and construction services. It was concluded that the project is technically feasible. (DMC)

  18. Farm-scale production of fuel ethanol and wet grain from corn in a batch process

    SciTech Connect (OSTI)

    Westby, C.A.; Gibbons, W.R.

    1982-07-01

    The batch production of fuel grade ethanol and distillers' wet grain (wet solids) in a farm-scale process (1240-15,580 L/batch) is described. The procedure employs yeast fermentation of amylase-treated corn mash and a two-stage distillation. Primary emphasis in this study was on the cooking, fermentation and centrifugation steps. Without recycling, fermentation of the mash yielded beers with 10.0-10.5% ethanol. Recycling of stillage supernatant at full, 75, or 50% strengths produced enriched mashes that after 48-hour fermentation yielded beers with 5-14% more ethanol. Recycling twice with full-strength stillage supernatant at pH 7.0 increased the ethanol yield in the final beer 16.5%; however, the time to complete the final fermentation was extended from 48 to 72 hours and salt buildup occurred. By recycling at pH 5.4, it was possible to avoid salt buildup and obtain beers with 10.3-10.5% ethanol. Recycling resulted in increased levels of glucose, starch, crude protein, and fat in the beer and a reduced moisture content while the wet solids showed an increased starch content. Centrifugation after cooking or fermentation instead of after distillation reduced the mash volume 17-20% and this lowered the ethanol yield in the subsequently produced beer. Fermentation of a volume-restored mash supernatant gave a beer with only 9.25% ethanol. Mash wet solids varied somewhat chemically from beer and stillage solids. An economic and energy balance analysis of various modes of plant operation are provided and plant design considerations are suggested. (Refs. 31).

  19. Decision guide to farm fuel production: ethanol, methanol, or vegetable oils

    SciTech Connect (OSTI)

    Kerstetter, J.D.

    1984-09-01

    The purpose of this paper is to inform farmers of the choices they have today regarding production of motor vehicle fuels. Its intent is to inform farmers of what is involved in producing an alternative fuel, its compatibility with existing engines, the costs involved, and the markets for the fuel and any by-products. This paper is not a how-to-do-it manual or a policy document. Some of the data has been developed from the Appropriate Technology Small Grants Program managed by the Washington State Energy Office. Part One provides background information on Washington's fuel use patterns, highlighting the agricultural sector. In Part Two, general considerations common to all alternative fuels are covered. Part Three contains three detailed discussions of the alternative fuels most favored by Washington farmers for production and use - ethanol, vegetable oils, and methanol. The Appendix contains a brief summary of the 11 ethanol projects in Washington funded as a result of the Appropriate Technology Small Grants Program. 5 references, 12 figures, 2 tables.

  20. Plasma-Enhanced Combustion of Hydrocarbon Fuels and Fuel Blends Using Nanosecond Pulsed Discharges

    SciTech Connect (OSTI)

    Cappelli, Mark; Mungal, M Godfrey

    2014-10-28

    This project had as its goals the study of fundamental physical and chemical processes relevant to the sustained premixed and non-premixed jet ignition/combustion of low grade fuels or fuels under adverse flow conditions using non-equilibrium pulsed nanosecond discharges.

  1. Alternative Fuels Data Center

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Alternative Fueling Infrastructure Tax Credit for Residents Through the Residential Energy Tax Credit program, qualified residents may receive a tax credit for 25% of alternative fuel infrastructure project costs, up to $750. Qualified residents may receive a tax credit for 50% of project costs, up to $750. Qualified alternative fuels include electricity, natural gas, gasoline blended with at least 85% ethanol (E85), propane, and other fuels that the Oregon Department of Energy approves. A

  2. Alternative Fuels Data Center

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    and Infrastructure Tax Credit for Businesses Business owners and others may be eligible for a tax credit of 35% of eligible costs for qualified alternative fuel infrastructure projects, or the incremental or conversion cost of two or more AFVs. Qualified infrastructure includes facilities for mixing, storing, compressing, or dispensing fuels for vehicles operating on alternative fuels. Qualified alternative fuels include electricity, natural gas, gasoline blended with at least 85% ethanol (E85),

  3. A comparison of ethanol and butanol as oxygenates using a direct-injection, spark-ignition (DISI) engine.

    SciTech Connect (OSTI)

    Wallner, T.; Miers, S. A.; McConnell, S.

    2009-05-01

    This study was designed to evaluate a 'what if' scenario in terms of using butanol as an oxygenate in place of ethanol in an engine calibrated for gasoline operation. No changes to the stock engine calibration were performed for this study. Combustion analysis, efficiency, and emissions of pure gasoline, 10% ethanol, and 10% butanol blends in a modern direct-injection four-cylinder spark-ignition engine were analyzed. Data were taken at engine speeds of 1000 rpm up to 4000 rpm with load varying from 0 N m (idle) to 150 N m. Relatively minor differences existed between the three fuels for the combustion characteristics such as heat release rate, 50% mass fraction burned, and coefficient of variation in indicated mean effective pressure at low and medium engine loads. However at high engine loads the reduced knock resistance of the butanol blend forced the engine control unit to retard the ignition timing substantially, compared with the gasoline baseline and, even more pronounced, compared with the ethanol blend. Brake specific volumetric fuel consumption, which represented a normalized volumetric fuel flow rate, was lowest for the gasoline baseline fuel due to the higher energy density. The 10% butanol blend had a lower volumetric fuel consumption compared with the ethanol blend, as expected, based on energy density differences. The results showed little difference in regulated emissions between 10% ethanol and 10% butanol. The ethanol blend produced the highest peak specific NO{sub x} due to the high octane rating of ethanol and effective antiknock characteristics. Overall, the ability of butanol to perform equally as well as ethanol from an emissions and combustion standpoint, with a decrease in fuel consumption, initially appears promising. Further experiments are planned to explore the full operating range of the engine and the potential benefits of higher blend ratios of butanol.

  4. Comparative Emissions Testing of Vehicles Aged on E0, E15 and E20 Fuels

    SciTech Connect (OSTI)

    Vertin, K.; Glinsky, G.; Reek, A.

    2012-08-01

    The Energy Independence and Security Act passed into law in December 2007 has mandated the use of 36 billion ethanol equivalent gallons per year of renewable fuel by 2022. A primary pathway to achieve this national goal is to increase the amount of ethanol blended into gasoline. This study is part of a multi-laboratory test program coordinated by DOE to evaluate the effect of higher ethanol blends on vehicle exhaust emissions over the lifetime of the vehicle.

  5. Detailed chemical kinetic mechanism for the oxidation of biodiesel fuels blend surrogate

    SciTech Connect (OSTI)

    Herbinet, Olivier; Pitz, William J.; Westbrook, Charles K.

    2010-05-15

    Detailed chemical kinetic mechanisms were developed and used to study the oxidation of two large unsaturated esters: methyl-5-decenoate and methyl-9-decenoate. These models were built from a previous methyl decanoate mechanism and were compared with rapeseed oil methyl esters oxidation experiments in a jet-stirred reactor. A comparative study of the reactivity of these three oxygenated compounds was performed and the differences in the distribution of the products of the reaction were highlighted showing the influence of the presence and the position of a double bond in the chain. Blend surrogates, containing methyl decanoate, methyl-5-decenoate, methyl-9-decenoate and n-alkanes, were tested against rapeseed oil methyl esters and methyl palmitate/n-decane experiments. These surrogate models are realistic kinetic tools allowing the study of the combustion of biodiesel fuels in diesel and homogeneous charge compression ignition engines. (author)

  6. Chlorinated organic compounds evolved during the combustion of blends of refuse-derived fuels and coals

    SciTech Connect (OSTI)

    Xiaodong Yang; Napier, J.; Sisk, B.; Wei-Ping Pan; Riley, J.T.; Lloyd, W.G.

    1996-12-31

    The objective of this study was to examine the possible formation of chlorinated organic compounds during the combustion of blends of refuse derived fuels (RDF) and coal under conditions similar to those of an atmospheric fluidized bed combustion (AFBC) system. A series of experiments were conducted using a TGA interfaced to FTIR and MS systems. Additional experiments using a tube furnace preheated to AFBC operating temperatures were also conducted. The combustion products were cryogenically trapped and analyzed with a GUMS system. The chlorination of phenols and the condensation reactions of chlorophenols were investigated in this study. A possible mechanism for the formation of chlorinated organic; compounds such as dibenzodioxins and dibenzofurans, by chlorination and condensation reactions involving phenols, was proposed.

  7. Detailed chemical kinetic mechanism for the oxidation of biodiesel fuels blend surrogate.

    SciTech Connect (OSTI)

    Herbinet, O; Pitz, W J; Westbrook, C K

    2009-07-21

    Detailed chemical kinetic mechanisms were developed and used to study the oxidation of two large unsaturated esters: methyl-5-decenoate and methyl-9-decenoate. These models were built from a previous methyl decanoate mechanism and were compared with rapeseed oil methyl esters oxidation experiments in a jet stirred reactor. A comparative study of the reactivity of these three oxygenated compounds was performed and the differences in the distribution of the products of the reaction were highlighted showing the influence of the presence and the position of a double bond in the chain. Blend surrogates, containing methyl decanoate, methyl-5-decenoate, methyl-9-decenoate and n-alkanes, were tested against rapeseed oil methyl esters and methyl palmitate/n-decane experiments. These surrogate models are realistic kinetic tools allowing the study of the combustion of biodiesel fuels in diesel and homogeneous charge compression ignition engines.

  8. Autoignition response of n-butanol and its blend with primary reference fuel constituents of gasoline.

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Kumar, Kamal; Zhang, Yu; Sung, Chi -Jen; Pitz, William J.

    2015-04-13

    We study the influence of blending n-butanol on the ignition delay times of n-heptane and iso-octane, the primary reference fuels for gasoline. The ignition delay times are measured using a rapid compression machine, with an emphasis on the low-to-intermediate temperature conditions. The experiments are conducted at equivalence ratios of 0.4 and 1.0, for a compressed pressure of 20 bar, with the temperatures at the end of compression ranging from 613 K to 979 K. The effect of n-butanol addition on the development of the two-stage ignition characteristics for the two primary reference fuels is also examined. The experimental results aremore » compared to predictions obtained using a detailed chemical kinetic mechanism, which has been obtained by a systematic merger of previously reported base models for the combustion of the individual fuel constituents. In conclusion, a sensitivity analysis on the base, and the merged models, is also performed to understand the dependence of autoignition delay times on the model parameters.« less

  9. Alternative Fuels Data Center

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Biofuels Tax Exemption Sales and use taxes apply to 80% of the proceeds from the sale of fuel blends containing between 1% and 10% biodiesel and the sale of fuels containing 10% ethanol (E10) made between July 1, 2003, and December 31, 2018. If at any time these taxes are imposed at a rate of 1.25%, the tax on biodiesel blends and E10 will then apply to 100% of the proceeds of sales. These taxes do not apply to the proceeds from the sale of biodiesel blends containing more than 10% biodiesel or

  10. Evaluation of the feasibility of ethanol steam reforming in a molten carbonate fuel cell

    SciTech Connect (OSTI)

    Cavallaro, S.; Passalacqua, E.; Maggio, G.; Patti, A.; Freni, S.

    1996-12-31

    The molten carbonate fuel cells (MCFCs) utilizing traditional fuels represent a suitable technological progress in comparison with pure hydrogen-fed MCFCs. The more investigated fuel for such an application is the methane, which has the advantages of low cost and large availability; besides, several authors demonstrated the feasibility of a methane based MCFC. In particular, the methane steam-reforming allows the conversion of the fuel in hydrogen also inside the cell (internal reforming configuration), utilizing the excess heat to compensate the reaction endothermicity. In this case, however, both the catalyst and the cell materials are subjected to thermal stresses due to the cold spots arising near to the reaction sites MCFC. An alternative, in accordance with the recent proposals of other authors, may be to produce hydrogen from methane by the partial oxidation reaction, rather than by steam reforming. This reaction is exothermic ({Delta}H{degrees}=-19.1 kJ/mol H{sub 2}) and it needs to verify the possibility to obtain an acceptable distribution of the temperature inside the cell. The alcohols and, in particular, methanol shows the gas reformed compositions as a function of the steam/ethanol molar ratio, ranging from 1.0 to 3.5. The hydrogen production enhances with this ratio, but it presents a maximum at S/EtOH of about 2.0. Otherwise, the increase of S/EtOH depresses the production of CO and CH{sub 4}, and ethanol may be a further solution for the hydrogen production inside a MCFC. In this case, also, the reaction in cell is less endothermic compared with the methane steam reforming with the additional advantage of a liquid fuel more easily storable and transportable. Aim of the present work is to perform a comparative evaluation of the different solutions, with particular reference to the use of ethanol.

  11. DOE Project 18546, AOP Task 1.1, Fuel Effects on Advanced Combustion...

    Office of Scientific and Technical Information (OSTI)

    of ethanol blends based on the gasoline characteristics used for blending. Results indicate that much of the octane benefits gained by high level ethanol blending can ...

  12. Emission Characteristics of a Diesel Engine Operating with In-Cylinder Gasoline and Diesel Fuel Blending

    SciTech Connect (OSTI)

    Prikhodko, Vitaly Y; Curran, Scott; Barone, Teresa L; Lewis Sr, Samuel Arthur; Storey, John Morse; Cho, Kukwon; Wagner, Robert M; Parks, II, James E

    2010-01-01

    Advanced combustion regimes such as homogeneous charge compression ignition (HCCI) and premixed charge compression ignition (PCCI) offer benefits of reduced nitrogen oxides (NOx) and particulate matter (PM) emissions. However, these combustion strategies often generate higher carbon monoxide (CO) and hydrocarbon (HC) emissions. In addition, aldehydes and ketone emissions can increase in these modes. In this study, the engine-out emissions of a compression-ignition engine operating in a fuel reactivity- controlled PCCI combustion mode using in-cylinder blending of gasoline and diesel fuel have been characterized. The work was performed on a 1.9-liter, 4-cylinder diesel engine outfitted with a port fuel injection system to deliver gasoline to the engine. The engine was operated at 2300 rpm and 4.2 bar brake mean effective pressure (BMEP) with the ratio of gasoline to diesel fuel that gave the highest engine efficiency and lowest emissions. Engine-out emissions for aldehydes, ketones and PM were compared with emissions from conventional diesel combustion. Sampling and analysis was carried out following micro-tunnel dilution of the exhaust. Particle geometric mean diameter, number-size distribution, and total number concentration were measured by a scanning mobility particle sizer (SMPS). For the particle mass measurements, samples were collected on Teflon-coated quartz-fiber filters and analyzed gravimetrically. Gaseous aldehydes and ketones were sampled using dinitrophenylhydrazine-coated solid phase extraction cartridges and the extracts were analyzed by liquid chromatography/mass spectrometry (LC/MS). In addition, emissions after a diesel oxidation catalyst (DOC) were also measured to investigate the destruction of CO, HC and formaldehydes by the catalyst.

  13. Effects of Propane/Natural Gas Blended Fuels on Gas Turbine Pollutant Emissions

    SciTech Connect (OSTI)

    D. Straub; D. Ferguson; K. Casleton; G. Richards

    2006-03-01

    U.S. natural gas composition is expected to be more variable in the future. Liquefied natural gas (LNG) imports to the U.S. are expected to grow significantly over the next 10-15 years. Unconventional gas supplies, like coal-bed methane, are also expected to grow. As a result of these anticipated changes, the composition of fuel sources may vary significantly from existing domestic natural gas supplies. To allow the greatest use of gas supplies, end-use equipment should be able to accommodate the widest possible gas composition. For this reason, the effect of gas composition on combustion behavior is of interest. This paper will examine the effects of fuel variability on pollutant emissions for premixed gas turbine conditions. The experimental data presented in this paper have been collected from a pressurized single injector combustion test rig at the National Energy Technology Laboratory (NETL). The tests are conducted at 7.5 atm with a 589K air preheat. A propane blending facility is used to vary the Wobbe Index of the site natural gas. The results indicate that propane addition of about five (vol.) percent does not lead to a significant change in the observed NOx emissions. These results vary from data reported in the literature for some engine applications and potential reasons for these differences are discussed.

  14. Fuzzy linear programming based optimal fuel scheduling incorporating blending/transloading facilities

    SciTech Connect (OSTI)

    Djukanovic, M.; Babic, B.; Milosevic, B.; Sobajic, D.J.; Pao, Y.H. |

    1996-05-01

    In this paper the blending/transloading facilities are modeled using an interactive fuzzy linear programming (FLP), in order to allow the decision-maker to solve the problem of uncertainty of input information within the fuel scheduling optimization. An interactive decision-making process is formulated in which decision-maker can learn to recognize good solutions by considering all possibilities of fuzziness. The application of the fuzzy formulation is accompanied by a careful examination of the definition of fuzziness, appropriateness of the membership function and interpretation of results. The proposed concept provides a decision support system with integration-oriented features, whereby the decision-maker can learn to recognize the relative importance of factors in the specific domain of optimal fuel scheduling (OFS) problem. The formulation of a fuzzy linear programming problem to obtain a reasonable nonfuzzy solution under consideration of the ambiguity of parameters, represented by fuzzy numbers, is introduced. An additional advantage of the FLP formulation is its ability to deal with multi-objective problems.

  15. Effects of Propane/Natural Gas Blended Fuels on Gas Turbine Pollutant Emissions

    SciTech Connect (OSTI)

    Straub, D.L.; Ferguson, D.H.; Casleton, K.H.; Richards, G.A.

    2007-03-01

    Liquefied natural gas (LNG) imports to the U.S. are expected to grow significantly over the next 10-15 years. Likewise, it is expected that changes to the domestic gas supply may also introduce changes in natural gas composition. As a result of these anticipated changes, the composition of fuel sources may vary significantly from conventional domestic natural gas supplies. This paper will examine the effects of fuel variability on pollutant emissions for premixed gas turbine conditions. The experimental data presented in this paper have been collected from a pressurized single injector combustion test rig at the National Energy Technology Laboratory (NETL). The tests are conducted at 7.5 atm with a 588 K air preheat. A propane blending facility is used to vary the Wobbe Index of the site natural gas. The results indicate that propane addition of about five (vol.) percent does not lead to a significant change in the observed NOx or CO emissions. These results are different from data collected on some engine applications and potential reasons for these differences will be described.

  16. Alternative Fuels Data Center

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Ethanol Infrastructure Grants and Loan Guarantees The Rural Energy for America Program (REAP) provides loan guarantees and grants to agricultural producers and rural small businesses to purchase renewable energy systems or make energy efficiency improvements. Eligible renewable energy systems include flexible fuel pumps, or blender pumps, that dispense intermediate ethanol blends. The maximum loan guarantee is $25 million and the maximum grant funding is 25% of project costs. At least 20% of the

  17. Fuel-blending stocks from the hydrotreatment of a distillate formed by direct coal liquefaction

    SciTech Connect (OSTI)

    Andile B. Mzinyati

    2007-09-15

    The direct liquefaction of coal in the iron-catalyzed Suplex process was evaluated as a technology complementary to Fischer-Tropsch synthesis. A distinguishing feature of the Suplex process, from other direct liquefaction processes, is the use of a combination of light- and heavy-oil fractions as the slurrying solvent. This results in a product slate with a small residue fraction, a distillate/naphtha mass ratio of 6, and a 65.8 mass % yield of liquid fuel product on a dry, ash-free coal basis. The densities of the resulting naphtha (C{sub 5}-200{sup o}C) and distillate (200-400{sup o}C) fractions from the hydroprocessing of the straight-run Suplex distillate fraction were high (0.86 and 1.04 kg/L, respectively). The aromaticity of the distillate fraction was found to be typical of coal liquefaction liquids, at 60-65%, with a Ramsbottom carbon residue content of 0.38 mass %. Hydrotreatment of the distillate fraction under severe conditions (200{sup o}C, 20.3 MPa, and 0.41 g{sub feed} h{sup -1} g{sub catalyst}{sup -1}) with a NiMo/Al{sub 2}O{sub 3} catalyst gave a product with a phenol content of {lt}1 ppm, a nitrogen content {lt}200 ppm, and a sulfur content {lt}25 ppm. The temperature was found to be the main factor affecting diesel fraction selectivity when operating at conditions of WHSV = 0.41 g{sub feed} h{sup -1} g{sub catalyst}{sup -1} and PH{sub 2} = 20.3 MPa, with excessively high temperatures (T {gt} 420{sup o}C) leading to a decrease in diesel selectivity. The fuels produced by the hydroprocessing of the straight-run Suplex distillate fraction have properties that make them desirable as blending components, with the diesel fraction having a cetane number of 48 and a density of 0.90 kg/L. The gasoline fraction was found to have a research octane number (RON) of 66 and (N + 2A) value of 100, making it ideal as a feedstock for catalytic reforming and further blending with Fischer-Tropsch liquids. 44 refs., 9 figs., 12 tabs.

  18. The Impact of Low Octane Hydrocarbon Blending Streams on "E85" Engine

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Optimization | Department of Energy The Impact of Low Octane Hydrocarbon Blending Streams on "E85" Engine Optimization The Impact of Low Octane Hydrocarbon Blending Streams on "E85" Engine Optimization deer12_szybist.pdf (3.46 MB) More Documents & Publications High Octane Fuels Can Make Better Use of Renewable Transportation Fuels Making Better Use of Ethanol as a Transportation Fuel With "Renewable Super Premium" Gasoline-Like Fuel Effects on Advanced

  19. Development of a dedicated ethanol ultra-low emission vehicle (ULEV) -- Phase 2 report

    SciTech Connect (OSTI)

    Dodge, L.G.; Bourn, G.; Callahan, T.J.; Naegeli, D.W.; Shouse, K.R.; Smith, L.R.; Whitney, K.A.

    1995-09-01

    The objective of this 3.5-year project is to develop a commercially competitive vehicle powered by ethanol (or an ethanol blend) that can meet California`s ultra-low emission vehicle (ULEV) standards and equivalent corporate average fuel economy (CAFE) energy efficiency for a light-duty passenger car application. The definition of commercially competitive is independent of fuel cost, but does include technical requirements for competitive power, performance, refueling times, vehicle range, driveability, fuel handling safety, and overall emissions performance. This report summarizes the second phase of this project, which lasted 12 months. This report documents two baseline vehicles, the engine modifications made to the original equipment manufacturer (OEM) engines, advanced aftertreatment testing, and various fuel tests to evaluate the flammability, lubricity, and material compatibility of the ethanol fuel blends.

  20. Flexible Fuel Vehicle Basics | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Vehicles & Fuels » Vehicles » Flexible Fuel Vehicle Basics Flexible Fuel Vehicle Basics August 20, 2013 - 9:05am Addthis Photo of a gray van with 'E85 Ethanol' written on the side. Flexible fuel vehicles (FFVs) have an internal combustion engine and are capable of operating on gasoline, E85 (a high-level blend of gasoline and ethanol), or a mixture of both. There are more than 10.6 million flexible fuel vehicles on U.S. roads today. However, many flexible fuel vehicle owners don't realize

  1. Design and Testing of a Liquid Nitrous Oxide and Ethanol Fueled Rocket Engine

    SciTech Connect (OSTI)

    Youngblood, Stewart

    2015-08-01

    A small-scale, bi-propellant, liquid fueled rocket engine and supporting test infrastructure were designed and constructed at the Energetic Materials Research and Testing Center (EMRTC). This facility was used to evaluate liquid nitrous oxide and ethanol as potential rocket propellants. Thrust and pressure measurements along with high-speed digital imaging of the rocket exhaust plume were made. This experimental data was used for validation of a computational model developed of the rocket engine tested. The developed computational model was utilized to analyze rocket engine performance across a range of operating pressures, fuel-oxidizer mixture ratios, and outlet nozzle configurations. A comparative study of the modeling of a liquid rocket engine was performed using NASA CEA and Cantera, an opensource equilibrium code capable of being interfaced with MATLAB. One goal of this modeling was to demonstrate the ability of Cantera to accurately model the basic chemical equilibrium, thermodynamics, and transport properties for varied fuel and oxidizer operating conditions. Once validated for basic equilibrium, an expanded MATLAB code, referencing Cantera, was advanced beyond CEAs capabilities to predict rocket engine performance as a function of supplied propellant flow rate and rocket engine nozzle dimensions. Cantera was found to comparable favorably to CEA for making equilibrium calculations, supporting its use as an alternative to CEA. The developed rocket engine performs as predicted, demonstrating the developedMATLAB rocket engine model was successful in predicting real world rocket engine performance. Finally, nitrous oxide and ethanol were shown to perform well as rocket propellants, with specific impulses experimentally recorded in the range of 250 to 260 seconds.

  2. Dispensing Equipment Testing With Mid-Level Ethanol/Gasoline Test Fluid

    Office of Energy Efficiency and Renewable Energy (EERE)

    The National Renewable Energy Laboratory’s (NREL) Nonpetroleum-Based Fuel Task addresses the hurdles to commercialization of biomass-derived fuels and fuel blends. One such hurdle is the unknown compatibility of new fuels with current infrastructure, such as the equipment used at service stations to dispense fuel into automobiles. The U.S. Department of Energy’s (DOE) Vehicle Technology Program and the Biomass Program have engaged in a joint project to evaluate the potential for blending ethanol into gasoline at levels higher than nominal 10 volume percent. The U.S. Environmental Protection Agency (EPA) is considering a waiver application for 15% by volume ethanol blended into gasoline (E15). Should the waiver be granted, service stations may be able to use their current equipment to dispense the new fuel. This project was established to help DOE and NREL better understand any potentially adverse impacts caused by a lack of knowledge about the compatibility of the dispensing equipment with ethanol blends higher than what the equipment was designed to dispense. This report provides data about the impact of introducing a gasoline with a higher volumetric ethanol content into service station dispensing equipment from a safety and a performance perspective.

  3. Western Ethanol Company LLC | Open Energy Information

    Open Energy Info (EERE)

    Ethanol Company LLC Jump to: navigation, search Name: Western Ethanol Company LLC Place: Placentia, California Zip: 92871 Product: California-based fuel ethanol distribution and...

  4. Federal and State Ethanol and Biodiesel Requirements (released in AEO2007)

    Reports and Publications (EIA)

    2007-01-01

    The Energy Policy Act 2005 requires that the use of renewable motor fuels be increased from the 2004 level of just over 4 billion gallons to a minimum of 7.5 billion gallons in 2012, after which the requirement grows at a rate equal to the growth of the gasoline pool. The law does not require that every gallon of gasoline or diesel fuel be blended with renewable fuels. Refiners are free to use renewable fuels, such as ethanol and biodiesel, in geographic regions and fuel formulations that make the most sense, as long as they meet the overall standard. Conventional gasoline and diesel can be blended with renewables without any change to the petroleum components, although fuels used in areas with air quality problems are likely to require adjustment to the base gasoline or diesel fuel if they are to be blended with renewables.

  5. Powertrain Component Inspection from Mid-Level Blends Vehicle Aging Study

    SciTech Connect (OSTI)

    Shoffner, Brent; Johnson, Ryan; Heimrich, Martin J.; Lochte, Michael

    2010-11-01

    The Energy Independence and Security Act of 2007 calls on the nation to significantly increase its use of renewable fuels to meet its transportation energy needs. The law expands the renewable fuel standard to require use of 36 billion gallons of renewable fuel by 2022. Given that ethanol is the most widely used renewable fuel in the U.S. market, ethanol will likely make up a significant portion of the 36-billion-gallon requirement. The vast majority of ethanol used in the United States is blended with gasoline to create E10-gasoline with up to 10% ethanol. The remaining ethanol is sold in the form of E85 - a gasoline blend with as much as 85% ethanol that can only be used in flexible-fuel vehicles (FFVs). Consumption of E85 is at present limited by both the size of the FFV fleet and the number of E85 fueling stations. Gasoline consumption in the United States is currently about 140 billion gallons per year; thus the maximum use of ethanol as E10 is only about 14 billion gallons. While the U.S. Department of Energy (DOE) remains committed to expanding the E85 infrastructure, that market represented less than 1% of the ethanol consumed in 2010 and will not be able to absorb projected volumes of ethanol in the near term. Because of these factors, DOE and others have been assessing the viability of using mid-level ethanol blends (E15 or E20) as a way to accommodate growing volumes of ethanol. The DOE Mid-Level Ethanol Blends Test Program has been under way since 2007, supported jointly by the Office of the Biomass Program and the Vehicle Technologies Program. One of the larger projects, the Catalyst Durability Study, or Vehicle Aging Study, will be completed early in calendar year 2011. The following report describes a subproject of the Vehicle Aging Study in which powertrain components from 18 of the vehicles were examined at Southwest Research Institute under contract to Oak Ridge National Laboratory (ORNL).

  6. Alternative Fuels Data Center

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Fuel Vehicle (AFV) Parking Space Regulation An individual is not allowed to park a motor vehicle within any parking space specifically designated for public parking and fueling of AFVs unless the motor vehicle is an AFV fueled by electricity, natural gas, methanol, propane, gasoline blended with at least 85% ethanol (E85), or other fuel the Oregon Department of Energy approves. Eligible AFVs must also be in the process of fueling or charging to park in the space. A person found responsible for a

  7. Performance, Efficiency, and Emissions Characterization of Reciprocating Internal Combustion Engines Fueled with Hydrogen/Natural Gas Blends

    SciTech Connect (OSTI)

    Kirby S. Chapman; Amar Patil

    2007-06-30

    Hydrogen is an attractive fuel source not only because it is abundant and renewable but also because it produces almost zero regulated emissions. Internal combustion engines fueled by compressed natural gas (CNG) are operated throughout a variety of industries in a number of mobile and stationary applications. While CNG engines offer many advantages over conventional gasoline and diesel combustion engines, CNG engine performance can be substantially improved in the lean operating region. Lean operation has a number of benefits, the most notable of which is reduced emissions. However, the extremely low flame propagation velocities of CNG greatly restrict the lean operating limits of CNG engines. Hydrogen, however, has a high flame speed and a wide operating limit that extends into the lean region. The addition of hydrogen to a CNG engine makes it a viable and economical method to significantly extend the lean operating limit and thereby improve performance and reduce emissions. Drawbacks of hydrogen as a fuel source, however, include lower power density due to a lower heating value per unit volume as compared to CNG, and susceptibility to pre-ignition and engine knock due to wide flammability limits and low minimum ignition energy. Combining hydrogen with CNG, however, overcomes the drawbacks inherent in each fuel type. Objectives of the current study were to evaluate the feasibility of using blends of hydrogen and natural gas as a fuel for conventional natural gas engines. The experiment and data analysis included evaluation of engine performance, efficiency, and emissions along with detailed in-cylinder measurements of key physical parameters. This provided a detailed knowledge base of the impact of using hydrogen/natural gas blends. A four-stroke, 4.2 L, V-6 naturally aspirated natural gas engine coupled to an eddy current dynamometer was used to measure the impact of hydrogen/natural gas blends on performance, thermodynamic efficiency and exhaust gas emissions

  8. Alternative Fuels Data Center

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Mid-level Ethanol Blend Retailer Tax Credit Retail stations dispensing mid-level blends of ethanol in gasoline between 15% (E15) up to 69% (E69) for use in motor vehicles may be ...

  9. Energy balances in the production and end use of alcohols derived from biomass. A fuels-specific comparative analysis of alternate ethanol production cycles

    SciTech Connect (OSTI)

    Not Available

    1980-10-01

    Considerable public interest and debate have been focused on the so-called energy balance issue involved in the conversion of biomass materials into ethanol for fuel use. This report addresses questions of net gains in premium fuels that can be derived from the production and use of ethanol from biomass, and shows that for the US alcohol fuel program, energy balance need not be a concern. Three categories of fuel gain are discussed in the report: (1) Net petroleum gain; (2) Net premium fuel gain (petroleum and natural gas); and (3) Net energy gain (for all fuels). In this study the investment of energy (in the form of premium fuels) in alcohol production includes all investment from cultivating, harvesting, or gathering the feedstock and raw materials, through conversion of the feedstock to alcohol, to the delivery to the end-user. To determine the fuel gains in ethanol production, six cases, encompassing three feedstocks, five process fuels, and three process variations, have been examined. For each case, two end-uses (automotive fuel use and replacement of petrochemical feedstocks) were scrutinized. The end-uses were further divided into three variations in fuel economy and two different routes for production of ethanol from petrochemicals. Energy requirements calculated for the six process cycles accounted for fuels used directly and indirectly in all stages of alcohol production, from agriculture through distribution of product to the end-user. Energy credits were computed for byproducts according to the most appropriate current use.

  10. U.S. Department of Energy FreedomCAR & Vehicle Technologies Program Advanced Vehicle Testing Activity, Hydrogen/CNG Blended Fuels Performance Testing in a Ford F-150

    SciTech Connect (OSTI)

    James E. Francfort

    2003-11-01

    Federal regulation requires energy companies and government entities to utilize alternative fuels in their vehicle fleets. To meet this need, several automobile manufacturers are producing compressed natural gas (CNG)-fueled vehicles. In addition, several converters are modifying gasoline-fueled vehicles to operate on both gasoline and CNG (Bifuel). Because of the availability of CNG vehicles, many energy company and government fleets have adopted CNG as their principle alternative fuel for transportation. Meanwhile, recent research has shown that blending hydrogen with CNG (HCNG) can reduce emissions from CNG vehicles. However, blending hydrogen with CNG (and performing no other vehicle modifications) reduces engine power output, due to the lower volumetric energy density of hydrogen in relation to CNG. Arizona Public Service (APS) and the U.S. Department of Energy’s Advanced Vehicle Testing Activity (DOE AVTA) identified the need to determine the magnitude of these effects and their impact on the viability of using HCNG in existing CNG vehicles. To quantify the effects of using various blended fuels, a work plan was designed to test the acceleration, range, and exhaust emissions of a Ford F-150 pickup truck operating on 100% CNG and blends of 15 and 30% HCNG. This report presents the results of this testing conducted during May and June 2003 by Electric Transportation Applications (Task 4.10, DOE AVTA Cooperative Agreement DEFC36- 00ID-13859).

  11. Ethanol Basics (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2015-01-01

    Ethanol is a widely-used, domestically-produced renewable fuel made from corn and other plant materials. More than 96% of gasoline sold in the United States contains ethanol. Learn more about this alternative fuel in the Ethanol Basics Fact Sheet, produced by the U.S. Department of Energy's Clean Cities program.

  12. Heterobimetallic zeolite, InV-ZSM-5, enables efficient conversion of biomass derived ethanol to renewable hydrocarbons

    SciTech Connect (OSTI)

    Narula, Chaitanya K.; Li, Zhenglong; Casbeer, Erik M.; Geiger, Robert A.; Moses-Debusk, Melanie; Keller, Martin; Buchanan, Michelle V.; Davison, Brian H.

    2015-11-03

    Here, direct catalytic conversion of ethanol to hydrocarbon blend-stock can increase biofuels use in current vehicles beyond the ethanol blend-wall of 10–15%. Literature reports describe quantitative conversion of ethanol over zeolite catalysts but high C2 hydrocarbon formation renders this approach unsuitable for commercialization. Furthermore, the prior mechanistic studies suggested that ethanol conversion involves endothermic dehydration step. Here, we report the complete conversion of ethanol to hydrocarbons over InV-ZSM-5 without added hydrogen and which produces lower C2 (<13%) as compared to that over H-ZSM-5. Experiments with C2H5OD and in situ DRIFT suggest that most of the products come from the hydrocarbon pool type mechanism and dehydration step is not necessary. Thus, our method of direct conversion of ethanol offers a pathway to produce suitable hydrocarbon blend-stock that may be blended at a refinery to produce fuels such as gasoline, diesel, JP-8, and jet fuel, or produce commodity chemicals such as BTX.

  13. Heterobimetallic zeolite, InV-ZSM-5, enables efficient conversion of biomass derived ethanol to renewable hydrocarbons

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Narula, Chaitanya K.; Li, Zhenglong; Casbeer, Erik M.; Geiger, Robert A.; Moses-Debusk, Melanie; Keller, Martin; Buchanan, Michelle V.; Davison, Brian H.

    2015-11-03

    Here, direct catalytic conversion of ethanol to hydrocarbon blend-stock can increase biofuels use in current vehicles beyond the ethanol blend-wall of 10–15%. Literature reports describe quantitative conversion of ethanol over zeolite catalysts but high C2 hydrocarbon formation renders this approach unsuitable for commercialization. Furthermore, the prior mechanistic studies suggested that ethanol conversion involves endothermic dehydration step. Here, we report the complete conversion of ethanol to hydrocarbons over InV-ZSM-5 without added hydrogen and which produces lower C2 (<13%) as compared to that over H-ZSM-5. Experiments with C2H5OD and in situ DRIFT suggest that most of the products come from the hydrocarbonmore » pool type mechanism and dehydration step is not necessary. Thus, our method of direct conversion of ethanol offers a pathway to produce suitable hydrocarbon blend-stock that may be blended at a refinery to produce fuels such as gasoline, diesel, JP-8, and jet fuel, or produce commodity chemicals such as BTX.« less

  14. Ethanol Tolerant Yeast for Improved Production of Ethanol from Biomass -

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Ethanol Basics Ethanol is a widely used, domesti- cally produced renewable fuel made from corn and other plant materials. More than 96% of gasoline sold in the United States contains ethanol. Fuel ethanol contains the same chemical compound as beverage alcohol, but it is denatured with a small amount of gasoline or other chemicals during the production process, making it unsafe for human consumption. Ethanol's primary market drivers are the Federal Renewable Fuel Standard requiring its use and

  15. Cellulosic Ethanol Technology on Track to Being Competitive With Other Transportation Fuels (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2011-02-01

    Researchers at the National Renewable Energy Laboratory (NREL) have been driving down the cost of cellulosic ethanol and overcoming the technical challenges that surround it-major milestones toward the Department of Energy (DOE) goal of making cellulosic ethanol cost-competitive by 2012.

  16. NREL UL E15 Fuel Dispensing Infrastructure Intermediate Blends Performance Testing (Presentation)

    SciTech Connect (OSTI)

    Moriarty, K.; Clark, W.

    2011-02-01

    Presentation provides an overview of NREL's project to determine compatibility and safe performance of installed fuel dispensing infrastructure with E15.

  17. Compression-ignition fuel properties of Fischer-Tropsch syncrude

    SciTech Connect (OSTI)

    Suppes, G.J.; Terry, J.G.; Burkhart, M.L.; Cupps, M.P.

    1998-05-01

    Fischer-Tropsch conversion of natural gas to liquid hydrocarbon fuel typically includes Fischer-Tropsch synthesis followed by refining (hydrocracking and distillation) of the syncrude into mostly diesel or kerosene with some naphtha (a feedstock for gasoline production). Refining is assumed necessary, possibly overlooking the exception fuel qualities of syncrude for more direct utilization as a compression-ignition (CI) fuel. This paper evaluates cetane number, viscosity, cloud-point, and pour-point properties of syncrude and blends of syncrude with blend stocks such as ethanol and diethyl ether. The results show that blends comprised primarily of syncrude are potentially good CI fuels, with pour-point temperature depression being the largest development obstacle. The resulting blends may provide a much-needed and affordable alternative CI fuel. Particularly good market opportunities exist with Environmental Policy Act (EPACT) applications.

  18. I DOE/RA/50354 FEASIBILITY STUDY FOR A 1~--QfY FUEL ETHANOL...

    Office of Scientific and Technical Information (OSTI)

    ... Material Balance 3.3 Energy Balance 3.4 Water Balance 4 PROCESS DESCRIPTION 4. 1 ... yeast formed per pound ethanol Pounds water- produced pei' pound yeast Pound carbon ...

  19. Alternative Fuels Data Center: E15

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    E15 to someone by E-mail Share Alternative Fuels Data Center: E15 on Facebook Tweet about Alternative Fuels Data Center: E15 on Twitter Bookmark Alternative Fuels Data Center: E15 on Google Bookmark Alternative Fuels Data Center: E15 on Delicious Rank Alternative Fuels Data Center: E15 on Digg Find More places to share Alternative Fuels Data Center: E15 on AddThis.com... More in this section... Ethanol Basics Blends E15 E85 Specifications Production & Distribution Feedstocks Related Links

  20. DOE/RA/50354 Volume II FEAS)IBILITY STUDY FOR A 10 MM GPY FUEL ETHANOL PLANT

    Office of Scientific and Technical Information (OSTI)

    DOE/RA/50354 Volume II FEAS)IBILITY STUDY FOR A 10 MM GPY FUEL ETHANOL PLANT BRADY HOT SPRINGS, NEVADA . Volume II - Geothermal Resource, Agricultural Feedstock, Markets and E c o q h i c Viability 8 *e _. - - * 7 , - - - September 1980 i Prepared by Geothermal Food Processors, Inc. Fernley, Nevada and The Andersen Group DISCLAIMER This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency Thereof,

  1. Estimating Impacts of Diesel Fuel Reformulation with Vector-based Blending

    SciTech Connect (OSTI)

    Hadder, G.R.

    2003-01-23

    The Oak Ridge National Laboratory Refinery Yield Model has been used to study the refining cost, investment, and operating impacts of specifications for reformulated diesel fuel (RFD) produced in refineries of the U.S. Midwest in summer of year 2010. The study evaluates different diesel fuel reformulation investment pathways. The study also determines whether there are refinery economic benefits for producing an emissions reduction RFD (with flexibility for individual property values) compared to a vehicle performance RFD (with inflexible recipe values for individual properties). Results show that refining costs are lower with early notice of requirements for RFD. While advanced desulfurization technologies (with low hydrogen consumption and little effect on cetane quality and aromatics content) reduce the cost of ultra low sulfur diesel fuel, these technologies contribute to the increased costs of a delayed notice investment pathway compared to an early notice investment pathway for diesel fuel reformulation. With challenging RFD specifications, there is little refining benefit from producing emissions reduction RFD compared to vehicle performance RFD. As specifications become tighter, processing becomes more difficult, blendstock choices become more limited, and refinery benefits vanish for emissions reduction relative to vehicle performance specifications. Conversely, the emissions reduction specifications show increasing refinery benefits over vehicle performance specifications as specifications are relaxed, and alternative processing routes and blendstocks become available. In sensitivity cases, the refinery model is also used to examine the impact of RFD specifications on the economics of using Canadian synthetic crude oil. There is a sizeable increase in synthetic crude demand as ultra low sulfur diesel fuel displaces low sulfur diesel fuel, but this demand increase would be reversed by requirements for diesel fuel reformulation.

  2. Feasibility study for a 10 MM GPY fuel ethanol plant, Brady Hot Springs, Nevada. Volume II. Geothermal resource, agricultural feedstock, markets and economic viability

    SciTech Connect (OSTI)

    Not Available

    1980-09-01

    The issues of the geothermal resource at Brady's Hot Springs are dealt with: the prospective supply of feedstocks to the ethanol plant, the markets for the spent grain by-products of the plant, the storage, handling and transshipment requirements for the feedstocks and by-products from a rail siding facility at Fernley, the probable market for fuel ethanol in the region, and an assessment of the economic viability of the entire undertaking.

  3. Fuel from farms: A guide to small-scale ethanol production: Second edition

    SciTech Connect (OSTI)

    Not Available

    1982-05-01

    This guide presents the current status of on-farm fermentation ethanol production as well as an overview of some of the technical and economic factors. Tools such as decision and planning worksheets and a sample business plan for use in exploring whether or not to go into ethanol production are given. Specifics in production including information on the raw materials, system components, and operational requirements are also provided. Recommendation of any particular process is deliberately avoided because the choice must be tailored to the needs and resources of each individual producer. The emphasis is on providing the facts necessary to make informed judgments. 98 refs., 14 figs., 9 tabs.

  4. Fuel from farms: a guide to small-scale ethanol production

    SciTech Connect (OSTI)

    1980-02-01

    A guide on fermentation processes with emphasis on small-scale production of ethanol using farm crops as a source of raw material is published. The current status of on-farm ethanol production as well as an overview of some of the technical and economic factors is presented. Decision and planning worksheets and a sample business plan for use in decision making are included. Specifics in production including information on the raw materials, system components, and operational requirements are also provided. Diagrams of fermentors and distilling apparatus are included. (DC)

  5. A Multicomponent Blend as a Diesel Fuel Surrogate for Compression Ignition Engine Applications

    SciTech Connect (OSTI)

    Pei, Yuanjiang; Mehl, Marco; Liu, Wei; Lu, Tianfeng; Pitz, William J.; Som, Sibendu

    2015-05-12

    A mixture of n-dodecane and m-xylene is investigated as a diesel fuel surrogate for compression ignition engine applications. Compared to neat n-dodecane, this binary mixture is more representative of diesel fuel because it contains an alkyl-benzene which represents an important chemical class present in diesel fuels. A detailed multi-component mechanism for n-dodecane and m-xylene was developed by combining a previously developed n-dodecane mechanism with a recently developed mechanism for xylenes. The xylene mechanism is shown to reproduce experimental ignition data from a rapid compression machine and shock tube, speciation data from the jet stirred reactor and flame speed data. This combined mechanism was validated by comparing predictions from the model with experimental data for ignition in shock tubes and for reactivity in a flow reactor. The combined mechanism, consisting of 2885 species and 11754 reactions, was reduced to a skeletal mechanism consisting 163 species and 887 reactions for 3D diesel engine simulations. The mechanism reduction was performed using directed relation graph (DRG) with expert knowledge (DRG-X) and DRG-aided sensitivity analysis (DRGASA) at a fixed fuel composition of 77% of n-dodecane and 23% m-xylene by volume. The sample space for the reduction covered pressure of 1 – 80 bar, equivalence ratio of 0.5 – 2.0, and initial temperature of 700 – 1600 K for ignition. The skeletal mechanism was compared with the detailed mechanism for ignition and flow reactor predictions. Finally, the skeletal mechanism was validated against a spray flame dataset under diesel engine conditions documented on the Engine Combustion Network (ECN) website. These multi-dimensional simulations were performed using a Representative Interactive Flame (RIF) turbulent combustion model. Encouraging results were obtained compared to the experiments with regards to the predictions of ignition delay and lift-off length at different ambient temperatures.

  6. Correlation between speciated hydrocarbon emissions and flame ionization detector response for gasoline/alcohol blends .

    SciTech Connect (OSTI)

    Wallner, T.

    2011-08-01

    The U.S. renewable fuel standard has made it a requirement to increase the production of ethanol and advanced biofuels to 36 billion by 2022. Ethanol will be capped at 15 billion, which leaves 21 billion to come from other sources such as butanol. Butanol has a higher energy density and lower affinity for water than ethanol. Moreover, alcohol fueled engines in general have been shown to positively affect engine-out emissions of oxides of nitrogen and carbon monoxide compared with their gasoline fueled counterparts. In light of these developments, the variety and blend levels of oxygenated constituents is likely to increase in the foreseeable future. The effect on engine-out emissions for total hydrocarbons is less clear due to the relative insensitivity of the flame ionization detector (FID) toward alcohols and aldehydes. It is well documented that hydrocarbon (HC) measurement using a conventional FID in the presence of oxygenates in the engine exhaust stream can lead to a misinterpretation of HC emissions trends for alcohol fuel blends. Characterization of the exhaust stream for all expected hydrocarbon constituents is required to accurately determine the actual concentration of unburned fuel components in the exhaust. In addition to a conventional exhaust emissions bench, this characterization requires supplementary instrumentation capable of hydrocarbon speciation and response factor independent quantification. Although required for certification testing, this sort of instrumentation is not yet widely available in engine development facilities. Therefore, an attempt is made to empirically determine FID correction factors for oxygenate fuels. Exhaust emissions of an engine fueled with several blends of gasoline and ethanol, n-butanol and iso-Butanol were characterized using both a conventional FID and a Fourier transform infrared. Based on these results, a response factor predicting the actual hydrocarbon emissions based solely on FID results as a function of

  7. Making Better Use of Ethanol as a Transportation Fuel With “Renewable Super Premium”

    Broader source: Energy.gov [DOE]

    Breakout Session 2: Frontiers and Horizons Session 2–B: End Use and Fuel Certification Brian West, Deputy Director for the Fuels, Engines, and Emissions Research Center, Oak Ridge National Laboratory

  8. Feasibility study for a 10 MM GPY fuel ethanol plant, Brady Hot...

    Office of Scientific and Technical Information (OSTI)

    Legacy 151000* -- Geothermal Energy-- Direct Energy Utilization; 140504 -- Solar Energy Conversion-- Biomass Production & Conversion-- (-1989); 090222 -- Alcohol Fuels-- ...

  9. Feasibility study for a 10-MM-GPY fuel ethanol plant, Brady Hot...

    Office of Scientific and Technical Information (OSTI)

    ... -- Alcohol Fuels-- Preparation from Wastes or Biomass-- (1976-1989); 140504 -- Solar Energy Conversion-- Biomass Production & Conversion-- (-1989); 151000 -- Geothermal ...

  10. Fuel Economy and Emissions of the Ethanol-Optimized Saab 9-5 Biopower

    SciTech Connect (OSTI)

    West, Brian H.; Lopez, Alberto J.; Theiss, Timothy J.; Graves, Ronald L.; Storey, John M.; Lewis, Samuel A.

    2007-01-01

    Owing to renewed and growing interest in increased ethanol utilization in the U.S., a European-specification 2007 Saab 9-5 Biopower 2.0t was acquired by the Department of Energy and Oak Ridge National Laboratory (ORNL) for benchmark evaluations. This report details the results of these evaluations.