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Sample records for lean gasoline system

  1. Lean Gasoline System Development for Fuel Efficient Small Car...

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

    Vehicle Technologies Program Annual Merit Review and Peer Evaluation PDF icon ace063smith2011o.pdf More Documents & Publications Lean Gasoline System Development for Fuel ...

  2. Lean Gasoline System Development for Fuel Efficient Small Car...

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

    Technologies Program Annual Merit Review and Peer Evaluation Meeting PDF icon ace063smith2013o.pdf More Documents & Publications Lean Gasoline System Development for Fuel ...

  3. Lean Gasoline System Development for Fuel Efficient Small Cars

    SciTech Connect (OSTI)

    2013-08-30

    The General Motors and DOE cooperative agreement program DE-EE0003379 is completed. The program has integrated and demonstrated a lean-stratified gasoline engine, a lean aftertreatment system, a 12V Stop/Start system and an Active Thermal Management system along with the necessary controls that significantly improves fuel efficiency for small cars. The fuel economy objective of an increase of 25% over a 2010 Chevrolet Malibu and the emission objective of EPA T2B2 compliance have been accomplished. A brief review of the program, summarized from the narrative is: The program accelerates development and synergistic integration of four cost competitive technologies to improve fuel economy of a light-duty vehicle by at least 25% while meeting Tier 2 Bin 2 emissions standards. These technologies can be broadly implemented across the U.S. light-duty vehicle product line between 2015 and 2025 and are compatible with future and renewable biofuels. The technologies in this program are: lean combustion, innovative passive selective catalyst reduction lean aftertreatment, 12V stop/start and active thermal management. The technologies will be calibrated in a 2010 Chevrolet Malibu mid-size sedan for final fuel economy demonstration.

  4. Lean Gasoline Engine Reductant Chemistry During Lean NOx Trap Regeneration

    SciTech Connect (OSTI)

    Choi, Jae-Soon; Prikhodko, Vitaly Y; Partridge Jr, William P; Parks, II, James E; Norman, Kevin M; Huff, Shean P; Chambon, Paul H; Thomas, John F

    2010-01-01

    Lean NOx Trap (LNT) catalysts can effectively reduce NOx from lean engine exhaust. Significant research for LNTs in diesel engine applications has been performed and has led to commercialization of the technology. For lean gasoline engine applications, advanced direct injection engines have led to a renewed interest in the potential for lean gasoline vehicles and, thereby, a renewed demand for lean NOx control. To understand the gasoline-based reductant chemistry during regeneration, a BMW lean gasoline vehicle has been studied on a chassis dynamometer. Exhaust samples were collected and analyzed for key reductant species such as H2, CO, NH3, and hydrocarbons during transient drive cycles. The relation of the reductant species to LNT performance will be discussed. Furthermore, the challenges of NOx storage in the lean gasoline application are reviewed.

  5. Reductant Chemistry during LNT Regeneration for a Lean Gasoline...

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

    Chemistry during LNT Regeneration for a Lean Gasoline Engine Reductant Chemistry during LNT Regeneration for a Lean Gasoline Engine Poster presented at the 16th Directions in ...

  6. European Lean Gasoline Direct Injection Vehicle Benchmark

    SciTech Connect (OSTI)

    Chambon, Paul H; Huff, Shean P; Edwards, Kevin Dean; Norman, Kevin M; Prikhodko, Vitaly Y; Thomas, John F

    2011-01-01

    Lean Gasoline Direct Injection (LGDI) combustion is a promising technical path for achieving significant improvements in fuel efficiency while meeting future emissions requirements. Though Stoichiometric Gasoline Direct Injection (SGDI) technology is commercially available in a few vehicles on the American market, LGDI vehicles are not, but can be found in Europe. Oak Ridge National Laboratory (ORNL) obtained a European BMW 1-series fitted with a 2.0l LGDI engine. The vehicle was instrumented and commissioned on a chassis dynamometer. The engine and after-treatment performance and emissions were characterized over US drive cycles (Federal Test Procedure (FTP), the Highway Fuel Economy Test (HFET), and US06 Supplemental Federal Test Procedure (US06)) and steady state mappings. The vehicle micro hybrid features (engine stop-start and intelligent alternator) were benchmarked as well during the course of that study. The data was analyzed to quantify the benefits and drawbacks of the lean gasoline direct injection and micro hybrid technologies from a fuel economy and emissions perspectives with respect to the US market. Additionally that data will be formatted to develop, substantiate, and exercise vehicle simulations with conventional and advanced powertrains.

  7. Emissions Control for Lean Gasoline Engines | Department of Energy

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

    1 DOE Hydrogen and Fuel Cells Program, and Vehicle Technologies Program Annual Merit Review and Peer Evaluation PDF icon ace033_toops_2011_o.pdf More Documents & Publications Pre-Competitive Catalysis Research: Fundamental Sulfation/Desulfation Studies of Lean NOx Traps CLEERS Coordination & Development of Catalyst Process Kinetic Data Emissions Control for Lean Gasoline Engines

  8. Emissions Control for Lean Gasoline Engines | Department of Energy

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

    0 DOE Vehicle Technologies and Hydrogen Programs Annual Merit Review and Peer Evaluation Meeting, June 7-11, 2010 -- Washington D.C. PDF icon ace018_parks_2010_o.pdf More Documents & Publications Emissions Control for Lean Gasoline Engines Light-Duty Lean GDI Vehicle Technology Benchmark Spatiotemporal Distribution of NOx Storage: a Factor Controlling NH3 and N2O Selectivities over a Commercial LNT Catalyst

  9. Application of charge stratification, lean burn combustion systems and anti-knock control devices in small two-stroke cycle gasoline engines

    SciTech Connect (OSTI)

    Kuentscher, V.

    1986-01-01

    For essentially reducing the specific fuel consumption in two-stroke cycle engines and the concentration of hydrocarbons (HC) in the exhaust gas, the normal engine was equipped with a new ram tuned fuel injection system. By the application of charge stratification, lean burn combustion, different ignition systems and a special anti-knock device, considerable fuel consumption and HC emission reductions were obtained.

  10. Ammonia Generation over TWC for Passive SCR NOX Control for Lean Gasoline Engines

    SciTech Connect (OSTI)

    Prikhodko, Vitaly Y; Parks, II, James E; Pihl, Josh A; Toops, Todd J

    2014-01-01

    A commercial three-way catalyst (TWC) was evaluated for ammonia (NH3) generation on a 2.0-liter BMW lean burn gasoline direct injection engine as a component in a passive ammonia selective catalytic reduction (SCR) system. The passive NH3 SCR system is a potential low cost approach for controlling nitrogen oxides (NOX) emissions from lean burn gasoline engines. In this system, NH3 is generated over a close-coupled TWC during periodic slightly rich engine operation and subsequently stored on an underfloor SCR catalyst. Upon switching to lean, NOX passes through the TWC and is reduced by the stored NH3 on the SCR catalyst. NH3 generation was evaluated at different air-fuel equivalence ratios at multiple engine speed and load conditions. Near complete conversion of NOX to NH3 was achieved at =0.96 for nearly all conditions studied. At the =0.96 condition, HC emissions were relatively minimal, but CO emissions were significant. Operation at AFRs richer than =0.96 did not provide more NH3 yield and led to higher HC and CO emissions. Results of the reductant conversion and consumption processes were used to calculate a representative fuel consumption of the engine operating with an ideal passive SCR system. The results show a 1-7% fuel economy benefit at various steady-state engine speed and load points relative to a stoichiometric engine operation.

  11. Emissions Control for Lean Gasoline Engines | Department of Energy

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

    2 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting PDF icon ace033_toops_2012_o.pdf More Documents & Publications NH3 generation over commercial Three-Way Catalysts and Lean-NOx Traps Vehicle Technologies Office Merit Review 2015: Cummins-ORNL\FEERC Emissions CRADA: NOx Control & Measurement Technology for Heavy-Duty Diesel Engines, Self-Diagnosing SmartCatalyst Systems Spatiotemporal Distribution of NOx Storage: a

  12. 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.

  13. 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 mass emissions were approximately 3 and 7 mg/mile for the FTP75 and US06, respectively, with lower emissions for the ethanol blends. The data are compared to a previous study on a U.S.-legal stoichiometric GDI vehicle operating on the same ethanol blends. The lean-burn GDI vehicle emitted a higher number of particles, but had an overall smaller average size. Particle number per mile decreased with increasing ethanol content for the transient tests. For the 30 and 80 mph tests, particle number concentration decreased with increasing ethanol content, although the shape of the particle size distribution remained the same. Engine-out OC/EC ratios were highest for the stoichiometric GDI vehicle with E20, but tailpipe OC/EC ratios were similar for all vehicles.

  14. Modeling of Lean Exhaust Emissions Control Systems | Department...

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

    Lean Exhaust Emissions Control Systems Modeling of Lean Exhaust Emissions Control Systems 2002 DEER Conference Presentation: National Renewable Energy Laboratory PDF icon...

  15. Catalyst Design for Urea-less Passive Ammonia SCR Lean-Burn SIDI

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

    Aftertreatment System | Department of Energy Design for Urea-less Passive Ammonia SCR Lean-Burn SIDI Aftertreatment System Catalyst Design for Urea-less Passive Ammonia SCR Lean-Burn SIDI Aftertreatment System Lean-burn SIDI engine technology offers improved fuel economy. PDF icon deer10_viola.pdf More Documents & Publications Emissions Control for Lean Gasoline Engines NH3 generation over commercial Three-Way Catalysts and Lean-NOx Traps Emissions Control for Lean Gasoline Engines

  16. Lean Gasoline System Development for Fuel Efficient Small Car

    Broader source: Energy.gov [DOE]

    2013 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting

  17. Lean Gasoline System Development for Fuel Efficient Small Car

    Broader source: Energy.gov [DOE]

    2011 DOE Hydrogen and Fuel Cells Program, and Vehicle Technologies Program Annual Merit Review and Peer Evaluation

  18. Lean Gasoline System Development for Fuel Efficient Small Car

    Broader source: Energy.gov [DOE]

    2012 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting

  19. Lean Gasoline System Development for Fuel Efficient Small Car

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

    ... Concept Phase 2 Refinement Phase 3 Optimization May 10 May 11 May 12 Sep 13 May 13 ... 12v SS & ATM Integration Vehicle FE Optimization FE Demo GM Powertrain Advanced ...

  20. Lean NOx Trap Catalysis for Lean Natural Gas Engine Applications

    SciTech Connect (OSTI)

    Parks, II, James E; Storey, John Morse; Theiss, Timothy J; Ponnusamy, Senthil; Ferguson, Harley Douglas; Williams, Aaron M; Tassitano, James B

    2007-09-01

    Distributed energy is an approach for meeting energy needs that has several advantages. Distributed energy improves energy security during natural disasters or terrorist actions, improves transmission grid reliability by reducing grid load, and enhances power quality through voltage support and reactive power. In addition, distributed energy can be efficient since transmission losses are minimized. One prime mover for distributed energy is the natural gas reciprocating engine generator set. Natural gas reciprocating engines are flexible and scalable solutions for many distributed energy needs. The engines can be run continuously or occasionally as peak demand requires, and their operation and maintenance is straightforward. Furthermore, system efficiencies can be maximized when natural gas reciprocating engines are combined with thermal energy recovery for cooling, heating, and power applications. Expansion of natural gas reciprocating engines for distributed energy is dependent on several factors, but two prominent factors are efficiency and emissions. Efficiencies must be high enough to enable low operating costs, and emissions must be low enough to permit significant operation hours, especially in non-attainment areas where emissions are stringently regulated. To address these issues the U.S. Department of Energy and the California Energy Commission launched research and development programs called Advanced Reciprocating Engine Systems (ARES) and Advanced Reciprocating Internal Combustion Engines (ARICE), respectively. Fuel efficiency and low emissions are two primary goals of these programs. The work presented here was funded by the ARES program and, thus, addresses the ARES 2010 goals of 50% thermal efficiency (fuel efficiency) and <0.1 g/bhp-hr emissions of oxides of nitrogen (NOx). A summary of the goals for the ARES program is given in Table 1-1. ARICE 2007 goals are 45% thermal efficiency and <0.015 g/bhp-hr NOx. Several approaches for improving the efficiency and emissions of natural gas reciprocating engines are being pursued. Approaches include: stoichiometric engine operation with exhaust gas recirculation and three-way catalysis, advanced combustion modes such as homogeneous charge compression ignition, and extension of the lean combustion limit with advanced ignition concepts and/or hydrogen mixing. The research presented here addresses the technical approach of combining efficient lean spark-ignited natural gas combustion with low emissions obtained from a lean NOx trap catalyst aftertreatment system. This approach can be applied to current lean engine technology or advanced lean engines that may result from related efforts in lean limit extension. Furthermore, the lean NOx trap technology has synergy with hydrogen-assisted lean limit extension since hydrogen is produced from natural gas during the lean NOx trap catalyst system process. The approach is also applicable to other lean engines such as diesel engines, natural gas turbines, and lean gasoline engines; other research activities have focused on those applications. Some commercialization of the technology has occurred for automotive applications (both diesel and lean gasoline engine vehicles) and natural gas turbines for stationary power. The research here specifically addresses barriers to commercialization of the technology for large lean natural gas reciprocating engines for stationary power. The report presented here is a comprehensive collection of research conducted by Oak Ridge National Laboratory (ORNL) on lean NOx trap catalysis for lean natural gas reciprocating engines. The research was performed in the Department of Energy's ARES program from 2003 to 2007 and covers several aspects of the technology. All studies were conducted at ORNL on a Cummins C8.3G+ natural gas engine chosen based on industry input to simulate large lean natural gas engines. Specific technical areas addressed by the research include: NOx reduction efficiency, partial oxidation and reforming chemistry, and the effects of sulfur poisons on the partial oxidation

  1. Exhaust gas purification system for lean burn engine

    DOE Patents [OSTI]

    Haines, Leland Milburn (Northville, MI)

    2002-02-19

    An exhaust gas purification system for a lean burn engine includes a thermal mass unit and a NO.sub.x conversion catalyst unit downstream of the thermal mass unit. The NO.sub.x conversion catalyst unit includes at least one catalyst section. Each catalyst section includes a catalytic layer for converting NO.sub.x coupled to a heat exchanger. The heat exchanger portion of the catalyst section acts to maintain the catalytic layer substantially at a desired temperature and cools the exhaust gas flowing from the catalytic layer into the next catalytic section in the series. In a further aspect of the invention, the exhaust gas purification system includes a dual length exhaust pipe upstream of the NO.sub.x conversion catalyst unit. The dual length exhaust pipe includes a second heat exchanger which functions to maintain the temperature of the exhaust gas flowing into the thermal mass downstream near a desired average temperature.

  2. Vehicle Technologies Office Merit Review 2015: Lean Miller Cycle System Development for Light-Duty Vehicles

    Broader source: Energy.gov [DOE]

    Presentation given by General Motors at 2015 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about lean miller cycle system...

  3. Passive Ammonia SCR for Lean Burn SIDI Engines

    Broader source: Energy.gov [DOE]

    Passive NH3 SCR has been demonstrated as a high efficiency and low cost alternative lean NOx aftertreatment technology for stratified gasoline engines.

  4. Hybrid lean premixing catalytic combustion system for gas turbines

    DOE Patents [OSTI]

    Critchley, Ian L.

    2003-12-09

    A system and method of combusting a hydrocarbon fuel is disclosed. The system combines the accuracy and controllability of an air staging system with the ultra-low emissions achieved by catalytic combustion systems without the need for a pre-heater. The result is a system and method that is mechanically simple and offers ultra-low emissions over a wide range of power levels, fuel properties and ambient operating conditions.

  5. Path to High Efficiency Gasoline Engine | Department of Energy

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

    Path to High Efficiency Gasoline Engine Path to High Efficiency Gasoline Engine Path to High Efficiency Gasoline Engine PDF icon deer10_johansson.pdf More Documents & Publications Partially Premixed Combustion High-Efficiency, Ultra-Low Emission Combustion in a Heavy-Duty Engine via Fuel Reactivity Control Advanced Lean-Burn DI Spark Ignition Fuels Research

  6. Emissions Control for Lean Gasoline Engines

    Broader source: Energy.gov [DOE]

    2013 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting

  7. Monolithic Metal Oxide based Composite Nanowire Lean NOx Emission Control

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

    Catalysts | Department of Energy Monolithic Metal Oxide based Composite Nanowire Lean NOx Emission Control Catalysts Monolithic Metal Oxide based Composite Nanowire Lean NOx Emission Control Catalysts Presents latest progress in the development of a new type of lean NOx trapping catalyst based on heterogenous composite nanowires, which could potentially be used in gasoline and diesel engines. PDF icon deer11_gao.pdf More Documents & Publications Three-Dimensional Composite Nanostructures

  8. Method and apparatus for controlling fuel/air mixture in a lean burn engine

    DOE Patents [OSTI]

    Kubesh, John Thomas (San Antonio, TX); Dodge, Lee Gene (San Antonio, TX); Podnar, Daniel James (San Antonio, TX)

    1998-04-07

    The system for controlling the fuel/air mixture supplied to a lean burn engine when operating on natural gas, gasoline, hydrogen, alcohol, propane, butane, diesel or any other fuel as desired. As specific humidity of air supplied to the lean burn engine increases, the oxygen concentration of exhaust gas discharged by the engine for a given equivalence ratio will decrease. Closed loop fuel control systems typically attempt to maintain a constant exhaust gas oxygen concentration. Therefore, the decrease in the exhaust gas oxygen concentration resulting from increased specific humidity will often be improperly attributed to an excessive supply of fuel and the control system will incorrectly reduce the amount of fuel supplied to the engine. Also, the minimum fuel/air equivalence ratio for a lean burn engine to avoid misfiring will increase as specific humidity increases. A relative humidity sensor to allow the control system to provide a more enriched fuel/air mixture at high specific humidity levels. The level of specific humidity may be used to compensate an output signal from a universal exhaust gas oxygen sensor for changing oxygen concentrations at a desired equivalence ratio due to variation in specific humidity specific humidity. As a result, the control system will maintain the desired efficiency, low exhaust emissions and power level for the associated lean burn engine regardless of the specific humidity level of intake air supplied to the lean burn engine.

  9. Development of Optimal Catalyst Designs and Operating Strategies for Lean NOx Reduction in Coupled LNT-SCR Systems

    SciTech Connect (OSTI)

    Harold, Michael; Crocker, Mark; Balakotaiah, Vemuri; Luss, Dan; Choi, Jae-Soon; Dearth, Mark; McCabe, Bob; Theis, Joe

    2013-09-30

    Oxides of nitrogen in the form of nitric oxide (NO) and nitrogen dioxide (NO{sub 2}) commonly referred to as NO{sub x}, is one of the two chemical precursors that lead to ground-level ozone, a ubiquitous air pollutant in urban areas. A major source of NO{sub x} is generated by equipment and vehicles powered by diesel engines, which have a combustion exhaust that contains NO{sub x} in the presence of excess O{sub 2}. Catalytic abatement measures that are effective for gasoline-fueled engines such as the precious metal containing three-way catalytic converter (TWC) cannot be used to treat O2-laden exhaust containing NO{sub x}. Two catalytic technologies that have emerged as effective for NO{sub x} abatement are NO{sub x} storage and reduction (NSR) and selective catalytic reduction (SCR). NSR is similar to TWC but requires much larger quantities of expensive precious metals and sophisticated periodic switching operation, while SCR requires an on-board source of ammonia which serves as the chemical reductant of the NO{sub x}. The fact that NSR produces ammonia as a byproduct while SCR requires ammonia to work has led to interest in combining the two together to avoid the need for the cumbersome ammonia generation system. In this project a comprehensive study was carried out of the fundamental aspects and application feasibility of combined NSR/SCR. The project team, which included university, industry, and national lab researchers, investigated the kinetics and mechanistic features of the underlying chemistry in the lean NOx trap (LNT) wherein NSR was carried out, with particular focus on identifying the operating conditions such as temperature and catalytic properties which lead to the production of ammonia in the LNT. The performance features of SCR on both model and commercial catalysts focused on the synergy between the LNT and SCR converters in terms of utilizing the upstream-generated ammonia and alternative reductants such as propylene, representing the hydrocarbon component of diesel exhaust. First-principle models of the LNT and SCR converters, which utilized the mechanistic-based kinetics and realistic treatments of the flow and transport processes, in combination with bench-scale reactor experiments helped to identify the best designs for combining the NSR and SCR catalysts over a range of operating conditions encountered in practice. This included catalysts having multiple zones and layers and additives with the focus on determining the minimal precious metal component needed to meet emission abatement targets over a wide range of operating conditions. The findings from this study provide diesel vehicle and catalyst companies valuable information to develop more cost effective diesel emissions catalysts which helps to expand the use of more fuel efficient diesel power. The fundamental modeling and experimental tools and findings from this project can be applied to catalyst technologies used in the energy and chemical industries. Finally, the project also led to training of several doctoral students who were placed in research jobs in industry and academia.

  10. TRITIUM PERMEATION AND TRANSPORT IN THE GASOLINE PRODUCTION SYSTEM COUPLED WITH HIGH TEMPERATURE GAS-COOLED REACTORS (HTGRS)

    SciTech Connect (OSTI)

    Chang H. Oh; Eung S. Kim; Mike Patterson

    2011-05-01

    This paper describes scoping analyses on tritium behaviors in the HTGR-integrated gasoline production system, which is based on a methanol-to-gasoline (MTG) plant. In this system, the HTGR transfers heat and electricity to the MTG system. This system was analyzed using the TPAC code, which was recently developed by Idaho National Laboratory. The global sensitivity analyses were performed to understand and characterize tritium behaviors in the coupled HTGR/MTG system. This Monte Carlo based random sampling method was used to evaluate maximum 17,408 numbers of samples with different input values. According to the analyses, the average tritium concentration in the product gasoline is about 3.0510-3 Bq/cm3, and 62 % cases are within the tritium effluent limit (= 3.7x10-3 Bq/cm3[STP]). About 0.19% of released tritium is finally transported from the core to the gasoline product through permeations. This study also identified that the following four parameters are important concerning tritium behaviors in the HTGR/MTG system: (1) tritium source, (2) wall thickness of process heat exchanger, (3) operating temperature, and (4) tritium permeation coefficient of process heat exchanger. These four parameters contribute about 95 % of the total output uncertainties. This study strongly recommends focusing our future research on these four parameters to improve modeling accuracy and to mitigate tritium permeation into the gasol ine product. If the permeation barrier is included in the future study, the tritium concentration will be significantly reduced.

  11. Catalyst Design for Urea-less Passive Ammonia SCR Lean-Burn SIDI...

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

    Design for Urea-less Passive Ammonia SCR Lean-Burn SIDI Aftertreatment System Catalyst Design for Urea-less Passive Ammonia SCR Lean-Burn SIDI Aftertreatment System Lean-burn SIDI ...

  12. Fuel Consumption and NOx Trade-offs on a Port-Fuel-Injected SI Gasoline

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

    Engine Equipped with a Lean-NOx Trap | Department of Energy NOx Trade-offs on a Port-Fuel-Injected SI Gasoline Engine Equipped with a Lean-NOx Trap Fuel Consumption and NOx Trade-offs on a Port-Fuel-Injected SI Gasoline Engine Equipped with a Lean-NOx Trap Lean-burn improves PFI fuel economy by ~3% relative to best stoichiometric VCT/EGR conditions, when used in combination with VCT & EGR. PDF icon deer09_lymburner.pdf More Documents & Publications Vehicle Technologies Office Merit

  13. NOx Reduction with Natural Gas for Lean Large-Bore Engine Applications Using Lean NOx Trap Aftertreatment

    SciTech Connect (OSTI)

    Parks, JE

    2005-02-11

    Large-bore natural gas engines are used for distributed energy and gas compression since natural gas fuel offers a convenient and reliable fuel source via the natural gas pipeline and distribution infrastructure. Lean engines enable better fuel efficiency and lower operating costs; however, NOx emissions from lean engines are difficult to control. Technologies that reduce NOx in lean exhaust are desired to enable broader use of efficient lean engines. Lean NOx trap catalysts have demonstrated greater than 90% NOx reduction in lean exhaust from engines operating with gasoline, diesel, and natural gas fuels. In addition to the clean nature of the technology, lean NOx traps reduce NOx with the fuel source of the engine thereby eliminating the requirement for storage and handling of secondary fuels or reducing agents. A study of lean NOx trap catalysts for lean natural gas engines is presented here. Testing was performed on a Cummins C8.3G (CG-280) engine on a motor dynamometer. Lean NOx trap catalysts were tested for NOx reduction performance under various engine operating conditions, and the utilization of natural gas as the reductant fuel source was characterized. Engine test results show that temperature greatly affects the catalytic processes involved, specifically methane oxidation and NOx storage on the lean NOx trap. Additional studies on a bench flow reactor demonstrate the effect of precious metal loading (a primary cost factor) on lean NOx trap performance at different temperatures. Results and issues related to the potential of the lean NOx trap technology for large-bore engine applications will be discussed.

  14. Lean blowoff detection sensor

    DOE Patents [OSTI]

    Thornton, Jimmy (Morgantown, WV); Straub, Douglas L. (Morgantown, WV); Chorpening, Benjamin T. (Morgantown, WV); Huckaby, David (Morgantown, WV)

    2007-04-03

    Apparatus and method for detecting incipient lean blowoff conditions in a lean premixed combustion nozzle of a gas turbine. A sensor near the flame detects the concentration of hydrocarbon ions and/or electrons produced by combustion and the concentration monitored as a function of time are used to indicate incipient lean blowoff conditions.

  15. Reducing the Particulate Emission Numbers in DI Gasoline Engines |

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

    Department of Energy the Particulate Emission Numbers in DI Gasoline Engines Reducing the Particulate Emission Numbers in DI Gasoline Engines Formation of droplets was minimized through optimization of fuel vaporization and distribution avoiding air/fuel zones richer than stoichiometric and temperatures that promote particle formation PDF icon deer10_klindt.pdf More Documents & Publications Bosch Powertrain Technologies Vehicle Emissions Review - 2012 Ethanol Effects on Lean-Burn and

  16. Finished Motor Gasoline Net Production

    Gasoline and Diesel Fuel Update (EIA)

    Data Series: Finished Motor Gasoline Finished Motor Gasoline (less Adj.) Reformulated Gasoline Reformulated Gasoline Blenede w/ Fuel Ethanol Reformulated Other Gasoline Conventional Gasoline Conventional Gasoline Blended w/ Fuel Ethanol Conventional Gasoline Blended w/ Fuel Ethanol, Ed55 & < Conventional Gasoline Blended w/ Fuel Ethanol, > Ed55 Other Conventional Gasoline Finished Motor Gasoline Adjustment Kerosene-Type Jet Fuel Kerosene-Type Jet, Commercial Kerosene-Type Jet, Military

  17. Micro-Mixing Lean-Premix System for Ultra-Low Emission Hydrogen/Syngas Combustion

    SciTech Connect (OSTI)

    Erlendur Steinthorsson; Brian Hollon; Adel Mansour

    2010-06-30

    The focus of this project was to develop the next generation of fuel injection technologies for environmentally friendly, hydrogen syngas combustion in gas turbine engines that satisfy DOE's objectives of reducing NOx emissions to 3 ppm. Building on Parker Hannifin's proven Macrolamination technology for liquid fuels, Parker developed a scalable high-performing multi-point injector that utilizes multiple, small mixing cups in place of a single conventional large-scale premixer. Due to the small size, fuel and air mix rapidly within the cups, providing a well-premixed fuel-air mixture at the cup exit in a short time. Detailed studies and experimentation with single-cup micro-mixing injectors were conducted to elucidate the effects of various injector design attributes and operating conditions on combustion efficiency, lean stability and emissions and strategies were developed to mitigate the impact of flashback. In the final phase of the program, a full-scale 1.3-MWth multi-cup injector was built and tested at pressures from 6.9bar (100psi) to 12.4bar (180psi) and flame temperatures up to 2000K (3150 F) using mixtures of hydrogen and natural gas as fuel with nitrogen and carbon dioxide as diluents. The injector operated without flash back on fuel mixtures ranging from 100% natural gas to 100% hydrogen and emissions were shown to be insensitive to combustor pressure. NOx emissions of 3-ppm were achieved at a flame temperature of 1750K (2690 F) when operating on a fuel mixture containing 50% hydrogen and 50% natural gas by volume with 40% nitrogen dilution and 1.5-ppm NOx was achieved at a flame temperature of 1680K (2564 F) using only 10% nitrogen dilution. NOx emissions of 3.5-ppm were demonstrated at a flame temperature of 1730K (2650 F) with only 10% carbon dioxide dilution. Finally, 3.6-ppm NOx emissions were demonstrated at a flame temperature over 1600K (2420 F) when operating on 100% hydrogen fuel with 30% carbon dioxide dilution. Superior operability was demonstrated for the hydrogen-natural gas fuel. The micro-mixing fuel injectors show great promise for use in future gas turbine engines operating on hydrogen, syngas or other fuel mixtures of various compositions, supporting the Department of Energy goals related to increased energy diversity while reducing greenhouse gases.

  18. USPS: Lean Green Teams

    Broader source: Energy.gov [DOE]

    Fact sheet describes a case study on the Lean Green Teams. The teams employ on-line tools including a Lean Green Team Guide, a Green Project List, and a Green Initiative Tracking Tool that tracks both leading indicators (status of project implementation) and lagging indicators (financial and environmental impacts).

  19. Gasoline and Diesel Fuel Update

    Gasoline and Diesel Fuel Update (EIA)

    Gasoline Sampling Methodology The sample for the Motor Gasoline Price Survey was drawn from a frame of approximately 115,000 retail gasoline outlets. The gasoline outlet frame was...

  20. USPS Lean Green Teams

    SciTech Connect (OSTI)

    2012-08-01

    Institutional change case study details the U.S. Postal Service's Lean Green Teams, which collaborate across functions to identify and implement low- and no-cost ways to conserve natural resources, purchase fewer consumable products, and reduce waste.

  1. Gasoline Biodesulfurization Fact Sheet

    Broader source: Energy.gov [DOE]

    This petroleum industry fact sheet describes how biodesulfurization can yield lower sulfur gasoline at lower production costs.

  2. Reductant Chemistry during LNT Regeneration for a Lean Gasoline Engine

    Broader source: Energy.gov [DOE]

    Poster presented at the 16th Directions in Engine-Efficiency and Emissions Research (DEER) Conference in Detroit, MI, September 27-30, 2010.

  3. DOE Gasoline Price Watch Website and Hotline | Department of Energy

    Energy Savers [EERE]

    Gasoline Price Watch Website and Hotline DOE Gasoline Price Watch Website and Hotline April 20, 2006 - 12:26pm Addthis WASHINGTON, DC - Secretary of Energy Samuel W. Bodman today is reminding consumers about the Department of Energy's (DOE) gasoline price reporting system. Consumers can report activity at local gasoline filling stations that they believe may constitute "gouging" or "price fixing" by visiting gaswatch.energy.gov/. "There are many legitimate factors

  4. Gasoline Ultra Fuel Efficient Vehicle Program Update | Department of Energy

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

    Vehicle Program Update Gasoline Ultra Fuel Efficient Vehicle Program Update Discusses hardware and system development activities to achieve in-vehicle fuel economy and emissions performance improvements compared to a production baseline vehicle. PDF icon deer12_confer.pdf More Documents & Publications Gasoline Ultra Fuel Efficient Vehicle Gasoline Ultra Fuel Efficient Vehicle

  5. Metal/metal oxide doped oxide catalysts having high deNOx selectivity for lean NOx exhaust aftertreatment systems

    DOE Patents [OSTI]

    Park, Paul W.

    2004-03-16

    A lean NOx catalyst and method of preparing the same is disclosed. The lean NOx catalyst includes a ceramic substrate, an oxide support material, preferably .gamma.-alumina, deposited on the substrate and a metal promoter or dopant introduced into the oxide support material. The metal promoters or dopants are selected from the group consisting of indium, gallium, tin, silver, germanium, gold, nickel, cobalt, copper, iron, manganese, molybdenum, chromium, cerium, vanadium, oxides thereof, and combinations thereof. The .gamma.-alumina preferably has a pore volume of from about 0.5 to about 2.0 cc/g; a surface area of between about 80 to 350 m.sup.2 /g; an average pore size diameter of between about 3 to 30 nm; and an impurity level of less than or equal to 0.2 weight percent. In a preferred embodiment the .gamma.-alumina is prepared by a sol-gel method, with the metal doping of the .gamma.-alumina preferably accomplished using an incipient wetness impregnation technique.

  6. The Performance of Gasoline Fuels and Surrogates in Gasoline HCCI

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

    Combustion | Department of Energy The Performance of Gasoline Fuels and Surrogates in Gasoline HCCI Combustion The Performance of Gasoline Fuels and Surrogates in Gasoline HCCI Combustion Almost 2 dozen gasoline fuels, blending components, and surrogates were evaluated in a single-cylinder HCCI gasoline engine for combustion, emissions, and efficiency performance. PDF icon p-05_bunting.pdf More Documents & Publications APBF Effects on Combustion Fuel-Borne Reductants for NOx

  7. Gasoline and Diesel Fuel Update

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

    Procedures, Methodology, and Coefficients of Variation Gasoline price data collection procedures Every Monday, retail prices for all three grades of gasoline are collected by...

  8. Gasoline and Diesel Fuel Update

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

    February 16, 2016 Reformulated Gasoline States in each PADD Region Procedures & Methodology Gasoline Data collection procedures Sampling methodology Coefficient of variation...

  9. Education Highlights: Gasoline Compression Ignition | Argonne National

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

    Laboratory Education Highlights: Gasoline Compression Ignition Share Description Argonne intern Kendyl Partridge from Mississippi State University worked with Argonne mentor Steve Ciatti of the Energy Systems division in studying gasoline compression ignition engines. This research will help engineers increase an engine's efficiency while reducing its environmental impact. Speakers Kendyl Partridge, Argonne National Laboratory Intern from Mississippi State University Duration 1:56 Topic

  10. Motor gasolines, summer 1985

    SciTech Connect (OSTI)

    Dickson, C.L.; Woodward, P.W.

    1986-06-01

    Samples for this report were collected from service stations throughout the country and were analyzed in laboratories of various refiners, motor manufacturers, chemical companies, and research institutes. Analytical data for the 1571 motor gasoline and 206 motor gasoline/alcohol blend samples were submitted to the National Institute for Petroleum and Energy Research (NIPER), Bartlesville, Oklahoma, for reporting. This work is jointly funded by the American Petroleum Institute (API) and the United States Department of Energy (DOE), Bartlesville Project Office (DOE cooperative agreement No. FC22-83FE60149). The data are representative of the products of 62 marketers, large and small, which manufacture and supply gasoline. They are tabulated by groups according to brands (unlabeled) and grades for 17 marketing districts into which the country is divided. A map shows the marketing areas, districts, and sampling locations. The report includes trend charts of selected properties of motor fuels over the last twenty-five years. Twelve octane distribution graphs for leaded and unleaded grades of gasoline are presented for areas 1, 2, 3, and 4. The average antiknock (octane) index (R + M)/2 of gasoline sold in the United States during June, July, and August 1985 was 87.4 for unleaded below 90.0, 91.7 for unleaded 90.0 and above, and 88.8 for leaded below 93.0 grades of gasoline. Analyses of motor gasoline containing various alcohols are reported in separate tables beginning with this report. The average antiknock (octane) index (R + M)/2 of gasoline containing alcohols was 88.6 for unleaded below 90.0, 91.4 for unleaded 90.0 and above, and 90.2 for leaded below 93.0 grades of gasoline. 16 figs., 8 tabs.

  11. Gasoline and Diesel Fuel Update

    Gasoline and Diesel Fuel Update (EIA)

    Detailed Price and CV Report Motor Gasoline Prices & Coefficients of Variation Spreadsheet

  12. Comparative urban drive cycle simulations of light-duty hybrid vehicles with gasoline or diesel engines and emissions controls

    SciTech Connect (OSTI)

    Gao, Zhiming; Daw, C Stuart; Smith, David E

    2013-01-01

    Electric hybridization is a very effective approach for reducing fuel consumption in light-duty vehicles. Lean combustion engines (including diesels) have also been shown to be significantly more fuel efficient than stoichiometric gasoline engines. Ideally, the combination of these two technologies would result in even more fuel efficient vehicles. However, one major barrier to achieving this goal is the implementation of lean-exhaust aftertreatment that can meet increasingly stringent emissions regulations without heavily penalizing fuel efficiency. We summarize results from comparative simulations of hybrid electric vehicles with either stoichiometric gasoline or diesel engines that include state-of-the-art aftertreatment emissions controls for both stoichiometric and lean exhaust. Fuel consumption and emissions for comparable gasoline and diesel light-duty hybrid electric vehicles were compared over a standard urban drive cycle and potential benefits for utilizing diesel hybrids were identified. Technical barriers and opportunities for improving the efficiency of diesel hybrids were identified.

  13. Gasoline and Diesel Fuel Update

    Gasoline and Diesel Fuel Update (EIA)

    Learn more... Price trends and regional differences What causes fluctuations in motor gasoline prices? Retail gasoline prices are mainly affected by crude oil prices and the level of gasoline supply relative to demand. Strong and increasing demand for gasoline and other petroleum products in the United States and the rest of the world at times places intense pressure on available supplies. Even when crude oil prices are stable... read more in Gasoline Explained What causes fluctuations in diesel

  14. Reformulated Gasoline Complex Model

    Gasoline and Diesel Fuel Update (EIA)

    Refiners Switch to Reformulated Gasoline Complex Model Contents * Summary * Introduction o Table 1. Comparison of Simple Model and Complex Model RFG Per Gallon Requirements * Statutory, Individual Refinery, and Compliance Baselines o Table 2. Statutory Baseline Fuel Compositions * Simple Model * Complex Model o Table 3. Complex Model Variables * Endnotes Related EIA Short-Term Forecast Analysis Products * RFG Simple and Complex Model Spreadsheets * Areas Particpating in the Reformulated Gasoline

  15. This Week In Petroleum Gasoline Section

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

    Regular gasoline retail prices (dollars per gallon) U.S. Average Conventional Reformulated U.S. retail regular gasoline prices graph Retail average regular gasoline prices graph...

  16. Blender Net Production of Finished Motor Gasoline

    U.S. Energy Information Administration (EIA) Indexed Site

    Product: Total Finished Motor Gasoline Reformulated Gasoline Reformulated Blended w Fuel Ethanol Reformulated Other Conventional Gasoline Conventional Blended w Fuel Ethanol ...

  17. Price of Motor Gasoline Through Retail Outlets

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

    & Stocks by State (Dollars per Gallon Excluding Taxes) Data Series: Retail Price - Motor Gasoline Retail Price - Regular Gasoline Retail Price - Midgrade Gasoline Retail Price...

  18. Chemistry Impacts in Gasoline HCCI

    SciTech Connect (OSTI)

    Szybist, James P; Bunting, Bruce G

    2006-09-01

    The use of homogeneous charge compression ignition (HCCI) combustion in internal combustion engines is of interest because it has the potential to produce low oxides of nitrogen (NOx) and particulate matter (PM) emissions while providing diesel-like efficiency. In HCCI combustion, a premixed charge of fuel and air auto-ignites at multiple points in the cylinder near top dead center (TDC), resulting in rapid combustion with very little flame propagation. In order to prevent excessive knocking during HCCI combustion, it must take place in a dilute environment, resulting from either operating fuel lean or providing high levels of either internal or external exhaust gas recirculation (EGR). Operating the engine in a dilute environment can substantially reduce the pumping losses, thus providing the main efficiency advantage compared to spark-ignition (SI) engines. Low NOx and PM emissions have been reported by virtually all researchers for operation under HCCI conditions. The precise emissions can vary depending on how well mixed the intake charge is, the fuel used, and the phasing of the HCCI combustion event; but it is common for there to be no measurable PM emissions and NOx emissions <10 ppm. Much of the early HCCI work was done on 2-stroke engines, and in these studies the CO and hydrocarbon emissions were reported to decrease [1]. However, in modern 4-stroke engines, the CO and hydrocarbon emissions from HCCI usually represent a marked increase compared with conventional SI combustion. This literature review does not report on HCCI emissions because the trends mentioned above are well established in the literature. The main focus of this literature review is the auto-ignition performance of gasoline-type fuels. It follows that this discussion relies heavily on the extensive information available about gasoline auto-ignition from studying knock in SI engines. Section 2 discusses hydrocarbon auto-ignition, the octane number scale, the chemistry behind it, its shortcomings, and its relevance to HCCI. Section 3 discusses the effects of fuel volatility on fuel and air mixing and the consequences it has on HCCI. The effects of alcohol fuels on HCCI performance, and specifically the effects that they have on the operable speed/load range, are reviewed in Section 4. Finally, conclusions are drawn in Section 5.

  19. Motor gasolines, summer 1983

    SciTech Connect (OSTI)

    Shelton, E.M.

    1984-02-01

    The samples were collected from service stations throughout the country and were analyzed in the laboratories of various refiners, motor manufacturers, chemical companies, and research institutes. The analytical data for 1583 samples of motor gasoline, were submitted to the National Institute for Petroleum and Energy Research, Bartlesville, Oklahoma for study, necessary calculations, and compilation under a cooperative agreement between the National Institute for Petroleum and Energy Research (NIPER) and the American Petroleum Institute (API). They represent the products of 48 companies, large and small, which manufacture and supply gasoline. These data are tabulated by groups according to brands (unlabeled) and grades for 17 marketing districts into which the country is divided. A map included in this report, shows marketing areas, districts and sampling locations. The report also includes charts indicating the trends of selected properties of motor fuels since 1959. Sixteen octane distribution percent charts for areas 1, 2, 3, and 4 for unleaded antiknock index (R+M)/2 below 90.0, unleaded antiknock index (R+M)/2 90.0 and above, and leaded antiknock index (R+M)/2 below 93.0 grades of gasoline are presented in this report. The antiknock (octane) index (R+M)/2 averages of gasoline sold in this country were 87.5 for unleaded below 90.0, 91.4 for unleaded 90.0 and above, and 89.0 for leaded below 93.0 grades of gasoline. 16 figures, 5 tables.

  20. Motor gasolines, Summer 1982

    SciTech Connect (OSTI)

    Shelton, E.M.

    1983-03-01

    The samples were collected from service stations throughout the country and were analyzed in the laboratories of various refiners, motor manufacturers, and chemical companies. The analytical data for 796 samples of motor gasoline, were submitted to the Bartlesville Energy Technology Center for study, necessary calculations, and compilation under a cooperative agreement between the Bartlesville Energy Technology Center (BETC) and the American Petroleum Institute (API). They represent the products of 22 companies, large and small, which manufacture and supply gasoline. These data are tabulated by groups according to brands (unlabeled) and grades for 17 marketing districts into which the country is divided. A map included in this report, shows marketing areas, districts and sampling locations. The report also includes charts indicating the trends of selected properties of motor fuels since 1959. Sixteen octane distribution percent charts for areas 1, 2, 3, and 4 for unleaded antiknock index (R + M)/2 below 90.0, unleaded antiknock index (R + M)/2 90.0 and above, leaded antiknock index (R + M)/2 below 93.0, and leaded antiknock index (R + M)/2 93.0 and above grades of gasoline are presented in this report. The antiknock (octane) index (R + M)/2 averages of gasoline sold in this country were 87.3 for unleaded below 90.0, 91.7 for unleaded 90.0 and above, 89.0 for leaded below 93.0, and no data in this report for 93.0 and above grades of leaded gasoline.

  1. Advanced Gasoline Turbocharged Direct Injection (GTDI) Engine...

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

    Vehicle Technologies Office Merit Review 2014: Advanced Gasoline Turbocharged Direct Injection (GTDI) Engine Development Advanced Gasoline Turbocharged Direct Injection (GTDI) ...

  2. Gasoline and Diesel Fuel Update

    Gasoline and Diesel Fuel Update (EIA)

    Methodology For Gasoline and Diesel Fuel Pump Components The components for the gasoline and diesel fuel pumps are calculated in the following manner in cents per gallon and then...

  3. Gasoline prices decrease (short version)

    U.S. Energy Information Administration (EIA) Indexed Site

    Gasoline prices decrease (short version) The U.S. average retail price for regular gasoline fell to 3.67 a gallon on Monday. That's down 3-tenths of a penny from a week ago, based...

  4. Gasoline prices decrease (short version)

    U.S. Energy Information Administration (EIA) Indexed Site

    Gasoline prices decrease (short version) The U.S. average retail price for regular gasoline fell to 3.68 a gallon on Monday. That's down 2.9 cents from a week ago, based on the...

  5. Gasoline prices increase (short version)

    U.S. Energy Information Administration (EIA) Indexed Site

    gasoline prices increase (short version) The U.S. average retail price for regular gasoline rose to 3.69 a gallon on Monday. That's up 1.2 cents from a week ago, based on the...

  6. Gasoline prices decrease (long version)

    U.S. Energy Information Administration (EIA) Indexed Site

    Gasoline prices decrease (long version) The U.S. average retail price for regular gasoline fell to 3.70 a gallon on Monday. That's down 1.4 cents from a week ago, based on the...

  7. Gasoline prices decrease (long version)

    U.S. Energy Information Administration (EIA) Indexed Site

    5, 2014 Gasoline prices decrease (long version) The U.S. average retail price for regular gasoline fell to 3.68 a gallon on Monday. That's down 2.9 cents from a week ago, based on...

  8. MTBE, Oxygenates, and Motor Gasoline

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

    MTBE, Oxygenates, and Motor Gasoline Contents * Introduction * Federal gasoline product quality regulations * What are oxygenates? * Who gets gasoline with oxygenates? * Which areas get MTBE? * How much has been invested in MTBE production capacity? * What does new Ethanol capacity cost? * What would an MTBE ban cost? * On-line information resources * Endnotes * Summary of revisions to this analysis Introduction The blending of methyl tertiary butyl ether (MTBE) into motor gasoline has increased

  9. Lean and Green Michigan PACE

    Broader source: Energy.gov [DOE]

    Interested property owners should start by performing an energy audit on their facilities to find the most cost effective energy improvements. Lean & Green Michigan can help customers find a ...

  10. Reformulated Gasoline Foreign Refinery Rules

    Gasoline and Diesel Fuel Update (EIA)

    Reformulated Gasoline Foreign Refinery Rules Contents * Introduction o Table 1. History of Foreign Refiner Regulations * Foreign Refinery Baseline * Monitoring Imported Conventional Gasoline * Endnotes Related EIA Short-Term Forecast Analysis Products * Areas Participating in the Reformulated Gasoline Program * Environmental Regulations and Changes in Petroleum Refining Operations * Oxygenate Supply/Demand Balances in the Short-Term Integrated Forecasting Model * Refiners Switch to Reformulated

  11. Price changes in the gasoline market: Are Midwestern gasoline prices downward sticky?

    SciTech Connect (OSTI)

    1999-03-01

    This report examines a recurring question about gasoline markets: why, especially in times of high price volatility, do retail gasoline prices seem to rise quickly but fall back more slowly? Do gasoline prices actually rise faster than they fall, or does this just appear to be the case because people tend to pay more attention to prices when they`re rising? This question is more complex than it might appear to be initially, and it has been addressed by numerous analysts in government, academia and industry. The question is very important, because perceived problems with retail gasoline pricing have been used in arguments for government regulation of prices. The phenomenon of prices at different market levels tending to move differently relative to each other depending on direction is known as price asymmetry. This report summarizes the previous work on gasoline price asymmetry and provides a method for testing for asymmetry in a wide variety of situations. The major finding of this paper is that there is some amount of asymmetry and pattern asymmetry, especially at the retail level, in the Midwestern states that are the focus of the analysis. Nevertheless, both the amount asymmetry and pattern asymmetry are relatively small. In addition, much of the pattern asymmetry detected in this and previous studies could be a statistical artifact caused by the time lags between price changes at different points in the gasoline distribution system. In other words, retail gasoline prices do sometimes rise faster than they fall, but this is largely a lagged market response to an upward shock in the underlying wholesale gasoline or crude oil prices, followed by a return toward the previous baseline. After consistent time lags are factored out, most apparent asymmetry disappears.

  12. Motor gasoline assessment, Spring 1997

    SciTech Connect (OSTI)

    1997-07-01

    The springs of 1996 and 1997 provide an excellent example of contrasting gasoline market dynamics. In spring 1996, tightening crude oil markets pushed up gasoline prices sharply, adding to the normal seasonal gasoline price increases; however, in spring 1997, crude oil markets loosened and crude oil prices fell, bringing gasoline prices down. This pattern was followed throughout the country except in California. As a result of its unique reformulated gasoline, California prices began to vary significantly from the rest of the country in 1996 and continued to exhibit distinct variations in 1997. In addition to the price contrasts between 1996 and 1997, changes occurred in the way in which gasoline markets were supplied. Low stocks, high refinery utilizations, and high imports persisted through 1996 into summer 1997, but these factors seem to have had little impact on gasoline price spreads relative to average spread.

  13. Anti-air pollution & energy conservation system for automobiles using leaded or unleaded gasoline, diesel or alternate fuel

    DOE Patents [OSTI]

    Bose, Ranendra K.

    2002-06-04

    Exhaust gases from an internal combustion engine operating with leaded or unleaded gasoline or diesel or natural gas, are used for energizing a high-speed gas turbine. The convoluting gas discharge causes a first separation stage by stratifying of heavier and lighter exhaust gas components that exit from the turbine in opposite directions, the heavier components having a second stratifying separation in a vortex tube to separate combustible pollutants from non-combustible components. The non-combustible components exit a vortex tube open end to atmosphere. The lighter combustible, pollutants effected in the first separation are bubbled through a sodium hydroxide solution for dissolving the nitric oxide, formaldehyde impurities in this gas stream before being piped to the engine air intake for re-combustion, thereby reducing the engine's exhaust pollution and improving its fuel economy. The combustible, heavier pollutants from the second separation stage are piped to air filter assemblies. This gas stream convoluting at a high-speed through the top stator-vanes of the air filters, centrifugally separates the coalescent water, aldehydes, nitrogen dioxides, sulfates, sulfur, lead particles which collect at the bottom of the bowl, wherein it is periodically released to the roadway. Whereas, the heavier hydrocarbon, carbon particles are piped through the air filter's porous element to the engine air intake for re-combustion, further reducing the engine's exhaust pollution and improving its fuel economy.

  14. Prices of Refiner Motor Gasoline Sales to End Users

    U.S. Energy Information Administration (EIA) Indexed Site

    Product/ Sales Type: Gasoline, All Grades - Sales to End Users (U.S. only) Gasoline, All Grades - Through Retail Outlets Gasoline, All Grades - Other End Users Gasoline, All Grades - Sales for Resale Gasoline, All Grades - DTW (U.S. only) Gasoline, All Grades - Rack (U.S. only) Gasoline, All Grades - Bulk (U.S. only) Regular Gasoline - Sales to End Users (U.S. only) Regular Gasoline - Through Retail Outlets Regular Gasoline - Other End Users Regular Gasoline - Sales for Resale Regular Gasoline -

  15. EIS-0039: Motor Gasoline Deregulation and the Gasoline Tilt

    Broader source: Energy.gov [DOE]

    The Economic Regulatory Administration developed this EIS to evaluate the environmental impacts, including social and economic impacts, that may result from either of two proposed regulatory changes: (1) the exemption of motor gasoline from the Department of Energy's Mandatory Petroleum Price and Allocation Regulations, and (2) the adoption of the gasoline tilt, a proposed regulation that would allow refiners to recover an additional amount of their total increased costs on gasoline.

  16. The Performance of Gasoline Fuels and Surrogates in Gasoline...

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

    components, and surrogates were evaluated in a single-cylinder HCCI gasoline engine for combustion, emissions, and efficiency performance. PDF icon p-05bunting.pdf More...

  17. Syngas Conversion to Gasoline-Range Hydrocarbons over Pd/ZnO/Al2O3 and ZSM-5 Composite Catalyst System

    SciTech Connect (OSTI)

    Dagle, Robert A.; Lizarazo Adarme, Jair A.; Lebarbier, Vanessa MC; Gray, Michel J.; White, James F.; King, David L.; Palo, Daniel R.

    2014-07-01

    A composite Pd/ZnO/Al2O3-HZSM-5 (Si/Al=40) catalytic system was evaluated for the synthesis of gasoline-range hydrocarbons directly from synthesis gas. Bifunctional catalyst comprising PdZn metal and acid sites present the required catalytically active sites necessary for the methanol synthesis, methanol dehydration, and methanol-to-gasoline reactions. This system provides a unique catalytic pathway for the production of liquid hydrocarbons directly from syngas. However, selectivity control is difficult and poses many challenges. The composite catalytic system was evaluated under various process conditions. Investigated were the effects of temperature (310-375oC), pressure (300-1000 psig), time-on-stream (50 hrs), and gas-hour space velocity (740-2970 hr-1), using a H2/CO molar syngas ratio of 2.0. By operating at the lower end of the temperature range investigated, liquid hydrocarbon formation was favored, as was decreased amounts of undesirable light hydrocarbons. However, lower operating temperatures also facilitated undesirable CO2 formation via the water-gas shift reaction. Higher operating pressures slightly favored liquid synthesis. Operating at relatively low pressures (e.g. 300 psig) was made possible, whereas for methanol synthesis alone higher pressure are usually required to achieve similar conversion levels (e.g. 1000 psig). Thermodynamic constraints on methanol synthesis are eased by pushing the equilibrium through hydrocarbon formation. Catalytic performance was also evaluated by altering Pd and Zn composition of the Pd/ZnO/Al2O3 catalyst. Of the catalysts and conditions tested, selectivity toward liquid hydrocarbon was highest when using a 5% Pd metal loading and Pd/Zn molar ratio of 0.25 and mixed with HZMS-5, operating at 310oC and 300 psig, CO conversion was 43 % and selectivity (carbon weight basis) to hydrocarbons was 49 wt. %. Of the hydrocarbon fraction, 44wt. % was in the C5-C12 liquid product range and consisted primarily of aromatic polymethylbenzenes. However, as syngas conversion increases with increasing temperature, selectivity to liquid product diminished. This is attributed, in large part, to increased saturation of the olefinic intermediates over PdZn metal sites. Under all the conditions and catalysts evaluated in this study, generating liquid product in high yield was challenging (<10 wt. % C5+ yield).

  18. Gasoline and Diesel Fuel Update

    Gasoline and Diesel Fuel Update (EIA)

    Retail motor gasoline city definitions The table below shows the counties included in the sampling area for the ten cities that EIA publishes retail motor gasoline prices for. EIA does not have gasoline prices by county. City Counties included Boston Barnstable County, MA Bristol County, MA Dukes County, MA Essex County, MA Hillsborough County, NH Merrimack County, NH Middlesex County, MA Nantucket County, MA Norfolk County, MA Plymouth County, MA Rockingham County, NH Strafford County, NH

  19. California Gasoline Price Study, 2003

    Reports and Publications (EIA)

    2003-01-01

    This is the final report to Congressman Ose describing the factors driving California's spring 2003 gasoline price spike and the subsequent price increases in June and August.

  20. Motor Gasoline Assessment, Spring 1997

    Reports and Publications (EIA)

    1997-01-01

    Analyzes the factors causing the run up of motor gasoline prices during spring 1996 and the different market conditions during spring 1997 that caused prices to decline.

  1. Development of Optimal Catalyst Designs and Operating Strategies for Lean

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

    NOx Reduction in Coupled LNT-SCR Systems | Department of Energy 0 DOE Vehicle Technologies and Hydrogen Programs Annual Merit Review and Peer Evaluation Meeting, June 7-11, 2010 -- Washington D.C. PDF icon ace029_harold_2010_o.pdf More Documents & Publications Development of Optimal Catalyst Designs and Operating Strategies for Lean NOx Reduction in Coupled LNT-SCR Systems Development of Optimal Catalyst Designs and Operating Strategies for Lean NOx Reduction in Coupled LNT-SCR Systems

  2. System Study of Rich Catalytic/Lean burn (RCL) Catalytic Combustion for Natural Gas and Coal-Derived Syngas Combustion Turbines

    SciTech Connect (OSTI)

    Shahrokh Etemad; Lance Smith; Kevin Burns

    2004-12-01

    Rich Catalytic/Lean burn (RCL{reg_sign}) technology has been successfully developed to provide improvement in Dry Low Emission gas turbine technology for coal derived syngas and natural gas delivering near zero NOx emissions, improved efficiency, extending component lifetime and the ability to have fuel flexibility. The present report shows substantial net cost saving using RCL{reg_sign} technology as compared to other technologies both for new and retrofit applications, thus eliminating the need for Selective Catalytic Reduction (SCR) in combined or simple cycle for Integrated Gasification Combined Cycle (IGCC) and natural gas fired combustion turbines.

  3. Topsoe integrated gasoline synthesis (TIGAS)

    SciTech Connect (OSTI)

    Hansen, H.K.; Joensen, F.

    1987-01-01

    Integration of Haldor Topsoe's oxygenate (MeOH, DME) synthesis and the MTG process into one single synthesis loop provides a new low investment route to gasoline from natural gas. The integrated process has been demonstrated in an industrial pilot with a capacity of 1 MTPD gasoline since 1984. The pilot has operated successfully for more than 10,000 hours.

  4. Development of Optimal Catalyst Designs and Operating Strategies for Lean

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

    NOx Reduction in Coupled LNT-SCR Systems | Department of Energy 1 DOE Hydrogen and Fuel Cells Program, and Vehicle Technologies Program Annual Merit Review and Peer Evaluation PDF icon ace029_harold_2011_o.pdf More Documents & Publications Development of Optimal Catalyst Designs and Operating Strategies for Lean NOx Reduction in Coupled LNT-SCR Systems

  5. Impact of Sulfur Dioxide on Lean NOx Trap Catalysts | Department of Energy

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

    Sulfur Dioxide on Lean NOx Trap Catalysts Impact of Sulfur Dioxide on Lean NOx Trap Catalysts 2004 Diesel Engine Emissions Reduction (DEER) Conference Presentation: University of New Mexico PDF icon 2004_deer_hammache.pdf More Documents & Publications CLEERS Aftertreatment Modeling and Analysis CLEERS Aftertreatment Modeling and Analysis An Improvement of Diesel PM and NOx Reduction System

  6. Hazard analysis of compressed natural gas fueling systems and fueling procedures used at retail gasoline service stations. Final report

    SciTech Connect (OSTI)

    1995-04-28

    An evaluation of the hazards associated with operations of a typical compressed natural gas (CNG) fueling station is presented. The evaluation includes identification of a typical CNG fueling system; a comparison of the typical system with ANSI/NFPA (American National Standards Institute/National Fire Protection Association) Standard 52, Compressed Natural Gas (CNG) Vehicular Fuel System, requirements; a review of CNG industry safety experience as identified in current literature; hazard identification of potential internal (CNG system-specific causes) and external (interface of co-located causes) events leading to potential accidents; and an analysis of potential accident scenarios as determined from the hazard evaluation. The study considers CNG dispensing equipment and associated equipment, including the compressor station, storate vessels, and fill pressure sensing system.

  7. Restructuring: The Changing Face of Motor Gasoline Marketing

    Reports and Publications (EIA)

    2001-01-01

    This report reviews the U.S. motor gasoline marketing industry during the period 1990 to 1999, focusing on changes that occurred during the period. The report incorporates financial and operating data from the Energy Information Administration's Financial Reporting System (FRS), motor gasoline outlet counts collected by the National Petroleum News from the states, and U.S. Census Bureau salary and employment data published in County Business Patterns.

  8. 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. PDF icon p-02_anitescu.pdf More Documents & Publications Preparation, Injection and Combustion of Supercritical Fluids Evaluation of Biodiesel

  9. U.S. Motor Gasoline Prices

    U.S. Energy Information Administration (EIA) Indexed Site

    Formulation/ Grade: Gasoline, Average Regular Gasoline Midgrade Gasoline Premium Gasoline Conventional, Average Conventional Regular Conventional Midgrade Conventional Premium Oxygenated, Average Oxygenated Regular Oxygenated Midgrade Oxygenated Premium Reformulated, Average Reformulated Regular Reformulated Midgrade Reformulated Premium Download Series History Download Series History Definitions, Sources & Notes Definitions, Sources & Notes Show Data By: Formulation/ Grade Sales Type

  10. Gasoline and Diesel Fuel Update

    Gasoline and Diesel Fuel Update (EIA)

    Gasoline Price Data Collection Procedures Every Monday, retail prices for all three grades of gasoline are collected by telephone from a sample of approximately 800 retail gasoline outlets. The prices are published around 5:00 p.m. ET Monday, except on government holidays, when the data are released on Tuesday (but still represent Monday's price). The reported price includes all taxes and is the pump price paid by a consumer as of 8:00 A.M. Monday. This price represents the self-serve price

  11. Development of Optimal Catalyst Designs and Operating Strategies for Lean

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

    NOx Reduction in Coupled LNT-SCR Systems | Department of Energy 2 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting PDF icon ace029_harold_2012_o.pdf More Documents & Publications Lean NOx Reduction with Dual Layer LNT/SCR Catalysts

  12. Northeast Gasoline Supply Reserve | Department of Energy

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

    Northeast Gasoline Supply Reserve Northeast Gasoline Supply Reserve The Northeast region of the U.S. is particularly vulnerable to gasoline disruptions as a result of hurricanes and other natural events. Hurricane Sandy in 2012 caused widespread issues related to the availability of gasoline. In response to help build a more secure and resilient energy infrastructure, the Energy Department established the first federal regional refined petroleum product reserve containing gasoline. To help

  13. 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.

  14. Gasoline Price Pass-through

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

    differences, whereas stationary series can be estimated in level form. The unit root test could not reject the hypothesis that the retail and spot gasoline price series have a...

  15. Gasoline prices decrease (short version)

    U.S. Energy Information Administration (EIA) Indexed Site

    short version) The U.S. average retail price for regular gasoline fell to 3.63 a gallon on Monday. That's down 2.9 cents from a week ago, based on the weekly price survey by the...

  16. Gasoline prices - January 7, 2013

    U.S. Energy Information Administration (EIA) Indexed Site

    short version) The U.S. average retail price for regular gasoline showed little movement from last week. Prices remained flat at 3.30 a gallon on Monday, based on the weekly price...

  17. Gasoline prices decrease (long version)

    U.S. Energy Information Administration (EIA) Indexed Site

    long version) The U.S. average retail price for regular gasoline fell to 3.65 a gallon on Monday. That's down 2.8 cents from a week ago, based on the weekly price survey by the...

  18. Gasoline prices decrease (Short version)

    U.S. Energy Information Administration (EIA) Indexed Site

    Short version) The U.S. average retail price for regular gasoline fell to 3.65 a gallon on Monday. That's down 2.8 cents from a week ago, based on the weekly price survey by the...

  19. Gasoline prices - January 7, 2013

    U.S. Energy Information Administration (EIA) Indexed Site

    long version) The U.S. average retail price for regular gasoline showed little movement from last week. Prices remained flat at 3.30 a gallon on Monday, based on the weekly price...

  20. Gasoline prices decrease (long version)

    U.S. Energy Information Administration (EIA) Indexed Site

    long version) The U.S. average retail price for regular gasoline fell to 3.63 a gallon on Monday. That's down 2.9 cents from a week ago, based on the weekly price survey by the...

  1. Thermal Deactivation Mechanisms of Fully-Formed Lean NOx Trap...

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

    Lean NOx Trap Catalysts Aged by LeanRich Cycling Catalysts in fully formulated lean NOx traps are aged and evaluated in a bench-flow reactor using simulated diesel...

  2. A Case Study of Lean Implementation at Sandia National Laboratories...

    Office of Scientific and Technical Information (OSTI)

    A Case Study of Lean Implementation at Sandia National Laboratories. Citation Details In-Document Search Title: A Case Study of Lean Implementation at Sandia National Laboratories. ...

  3. Monolithic Metal Oxide based Composite Nanowire Lean NOx Emission...

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

    Monolithic Metal Oxide based Composite Nanowire Lean NOx Emission Control Catalysts Monolithic Metal Oxide based Composite Nanowire Lean NOx Emission Control Catalysts Presents...

  4. Three-Dimensional Composite Nanostructures for Lean NOx Emission...

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

    More Documents & Publications Monolithic Metal Oxide based Composite Nanowire Lean NOx Emission Control Catalysts Three-Dimensional Composite Nanostructures for Lean NOx...

  5. Three-Dimensional Composite Nanostructures for Lean NOx Emission...

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

    More Documents & Publications Three-Dimensional Composite Nanostructures for Lean NOx Emission Control Monolithic Metal Oxide based Composite Nanowire Lean NOx Emission...

  6. Measurement and Characterization of Lean NOx Adsorber Regeneration...

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

    Lean NOx Adsorber Regeneration and Desulfation and Controlling NOx from Multi-mode Measurement and Characterization of Lean NOx Adsorber Regeneration and Desulfation and...

  7. A University Consortium on High Pressure, Lean Combustion for...

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

    High Pressure, Lean Combustion for Efficient and Clean IC Engines (UM - lead, MIT, UCB) A University Consortium on High Pressure, Lean Combustion for Efficient and Clean IC Engines ...

  8. McLean County, Illinois: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    Zone Subtype A. Registered Energy Companies in McLean County, Illinois State Farm Insurance Places in McLean County, Illinois Anchor, Illinois Arrowsmith, Illinois Bellflower,...

  9. Development of Optimal Catalyst Designs and Operating Strategies for Lean

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

    NOx Reduction in Coupled LNT-SCR Systems | Department of Energy Poster presented at the 16th Directions in Engine-Efficiency and Emissions Research (DEER) Conference in Detroit, MI, September 27-30, 2010. PDF icon p-05_harold.pdf More Documents & Publications Development of Optimal Catalyst Designs and Operating Strategies for Lean NOx Reduction in Coupled LNT-SCR Systems Development of Optimal Catalyst Designs and Operating Strategies for Coupled LNT/SCR

  10. Methanol as a fuel for a lean turbocharged spark ignition engine

    SciTech Connect (OSTI)

    Pannone, G.M.; Johnson, R.T.

    1989-01-01

    Lean turbocharged operation with methanol was characterized using a single-cylinder spark, ignition engine. Efficiency, exhaust emissions, and combustion properties were measured over a range of air/fuel ratios at two naturally-aspirated and three turbocharged conditions. When compared to stoichiometric, naturally-aspirated operation, the lean turbocharged conditions improved efficiency while reducing carbon monoxide and oxides of nitrogen emissions. However, unburned fuel and aldehyde emissions increased. If used in conjunction with an oxidizing catalyst and appropriate feedback controls, lean turbocharged operation has the potential of improving efficiency and exhaust emissions performance over a stoichiometric, three-way catalyst system.

  11. Gasoline prices inch down (long version)

    U.S. Energy Information Administration (EIA) Indexed Site

    Gasoline prices inch down (long version) The U.S. average retail price for regular gasoline fell to 3.68 a gallon on Monday. That's down 1.6 cents from a week ago, based on the...

  12. STEO January 2013 - average gasoline prices

    U.S. Energy Information Administration (EIA) Indexed Site

    drivers to see lower average gasoline prices in 2013 and 2014 U.S. retail gasoline prices are expected to decline over the next two years. The average pump price for regular...

  13. Price Changes in the Gasoline Market - Are Midwestern Gasoline Prices Downward Sticky?

    Reports and Publications (EIA)

    1999-01-01

    The report concentrates on regional gasoline prices in the Midwest from October 1992 through June 1998.

  14. Advanced Gasoline Turbocharged Direct Injection (GTDI) Engine...

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

    Turbocharged Direct Injection (GTDI) Engine Development Vehicle Technologies Office Merit Review 2014: Advanced Gasoline Turbocharged Direct Injection (GTDI) Engine ...

  15. Motor Gasoline Outlook and State MTBE Bans

    Reports and Publications (EIA)

    2003-01-01

    The U.S. is beginning the summer 2003 driving season with lower gasoline inventories and higher prices than last year. Recovery from this tight gasoline market could be made more difficult by impending state bans on the blending of methyl tertiary butyl ether (MTBE) into gasoline that are scheduled to begin later this year.

  16. Case Study: USPS - Lean Green Teams

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

    "Lean Green" teams and a detailed guidebook helps develop a conservation culture throughout the USPS USPS - Lean Green Teams The Postal Service's 630+ Lean Green Teams are made up of postal employees who collaborate across functions to identify and implement low- and no-cost ways to con- serve natural resources, purchase fewer consumable products, and reduce waste of all kinds. Teams are organized at the area, district, and facility levels. The teams employ on-line tools including a

  17. Catalysts, systems and methods to reduce NOX in an exhaust gas stream

    DOE Patents [OSTI]

    Castellano, Christopher R. (Ringoes, NJ); Moini, Ahmad (Princeton, NJ); Koermer, Gerald S. (Basking Ridge, NJ); Furbeck, Howard (Hamilton, NJ)

    2010-07-20

    Catalysts, systems and methods are described to reduce NO.sub.x emissions of an internal combustion engine. In one embodiment, an emissions treatment system for an exhaust stream is provided having an SCR catalyst comprising silver tungstate on an alumina support. The emissions treatment system may be used for the treatment of exhaust streams from diesel engines and lean burn gasoline engines. An emissions treatment system may further comprise an injection device operative to dispense a hydrocarbon reducing agent upstream of the catalyst.

  18. Reduction of Nitrogen Oxide Emissions for lean Burn Engine Technology

    SciTech Connect (OSTI)

    McGill, R.N.

    1998-08-04

    Lean-burn engines offer the potential for significant fuel economy improvements in cars and trucks, perhaps the next great breakthrough in automotive technology that will enable greater savings in imported petroleum. The development of lean-burn engines, however, has been an elusive goal among automakers because of the emissions challenges associated with lead-burn engine technology. Presently, cars operate with sophisticated emissions control systems that require the engine's air-fuel ratio to be carefully controlled around the stoichiometric point (chemically correct mixture). Catalysts in these systems are called "three-way" catalysts because they can reduce hydrocarbon, carbon monoxide, and nitrogen oxide emissions simultaneously, but only because of the tight control of the air-fuel ratio. The purpose of this cooperative effort is to develop advanced catalyst systems, materials, and necessary engine control algorithms for reducing NOX emissions in oxygen-rich automotive exhaust (as with lean-burn engine technology) to meet current and near-future mandated Clean Air Act standards. These developments will represent a breakthrough in both emission control technology and automobile efficiency. The total project is a joint effort among five national laboratories, together with US CAR. The role of Lockheed-Martin Energy Systems in the total project is two fold: characterization of catalyst performance through laboratory evaluations from bench-scale flow reactor tests to engine laboratory tests of full-scale prototype catalysts, and microstructural characterization of catalyst material before and after test stand and/or engine testing.

  19. 5 Hz Catalytic Emissions FT-IR Monitoring during Lean-Rich Engine Cycles:

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

    Comparison to Reference Methods | Department of Energy Hz Catalytic Emissions FT-IR Monitoring during Lean-Rich Engine Cycles: Comparison to Reference Methods 5 Hz Catalytic Emissions FT-IR Monitoring during Lean-Rich Engine Cycles: Comparison to Reference Methods 2005 Diesel Engine Emissions Reduction (DEER) Conference Presentations and Posters PDF icon 2005_deer_lake.pdf More Documents & Publications Reductant Utilization in a LNT + SCR System Spatiotemporal Distribution of NOx

  20. Effects of Ignition and Injection Perturbation under Lean and Dilute GDI Engine Operation

    SciTech Connect (OSTI)

    Wallner, Thomas; Kaul, Brian C; Sevik, James; Scarcelli, Riccardo; Wagner, Robert M

    2015-01-01

    Turbocharged gasoline direct injection (GDI) engines are quickly becoming more prominent in light-duty automotive applications because of their potential improvements in efficiency and fuel economy. While EGR dilute and lean operation serve as potential pathways to further improve efficiencies and emissions in GDI engines, they also pose challenges for stable engine operation. Tests were performed on a single-cylinder research engine that is representative of current automotive-style GDI engines. Baseline cases were performed under steady-state operating conditions where combustion phasing and dilution levels were varied to determine the effects on indicated efficiency and combustion stability. Sensitivity studies were then carried out by introducing binary low-high perturbation of spark timing and injection duration on a cycle-by-cycle basis under EGR dilute and lean operation to determine dominant feedback mechanisms. Ignition perturbation was phased early/late of MBT timing, and injection perturbation was set fuel rich/lean of the given air-to-fuel ratio. COVIMEP was used to define acceptable operation limits when comparing different perturbation cases. Overall sensitivity data shows COVIMEP is more sensitive to injection perturbation over ignition perturbation. This is because of the greater effect injection perturbation has on combustion phasing, ignition delay, and combustion duration.

  1. Vehicle Technologies Office Merit Review 2014: Emissions Control for Lean Gasoline Engines

    Broader source: Energy.gov [DOE]

    Presentation given by Oak Ridge National Laboratory at 2014 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about emissions...

  2. Microsoft Word - Summer 2004 Motor Gasoline Outlook.doc

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

    April 2004 Summer 2004 Motor Gasoline Outlook Summary * Gasoline markets are tight as the 2004 driving season begins and conditions are likely to remain volatile through the summer. High crude oil costs, strong gasoline demand growth, low gasoline inventories, uncertainty about the availability of gasoline imports, high transportation costs, and changes in gasoline specifications have added to current and expected gasoline costs and pump prices. * For the upcoming summer driving season (April to

  3. Evaluation of processes for producing gasoline from wood. Final report

    SciTech Connect (OSTI)

    1980-05-01

    Three processes for producing gasoline from wood by pyrolysis have been investigated. Technical and economic comparisons among the processes have been made, based on a hypothetical common plant size of 2000 tons per day green wood chip feedstock. In order to consider the entire fuel production process, the energy and cost inputs for producing and delivering the feedstock were included in the analysis. In addition, perspective has been provided by comparisons of the wood-to-gasoline technologies with other similar systems, including coal-to-methanol and various biomass-to-alcohol systems. Based on several assumptions that were required because of the candidate processes' information gaps, comparisons of energy efficiency were made. Several descriptors of energy efficiency were used, but all showed that methanol production from wood, with or without subsequent processing by the Mobil route to gasoline, appears most promising. It must be emphasized, however, that the critical wood-to-methanol system remains conceptual. Another observation was that the ethanol production systems appear inferior to the wood-to-gasoline processes. Each of the processes investigated requires further research and development to answer the questions about their potential contributions confidently. The processes each have so many unknowns that it appears unwise to pursue any one while abandoning the others.

  4. Areas Participating in the Reformulated Gasoline Program

    Gasoline and Diesel Fuel Update (EIA)

    Reformulated Gasoline Program Contents * Introduction * Mandated RFG Program Areas o Table 1. Mandated RFG Program Areas * RFG Program Opt-In Areas o Table 2. RFG Program Opt-In Areas * RFG Program Opt-Out Procedures and Areas o Table 3. History of EPA Rulemaking on Opt-Out Procedures o Table 4. RFG Program Opt-Out Areas * State Programs o Table 5. State Reformulated Gasoline Programs * Endnotes Spreadsheets Referenced in this Article * Reformulated Gasoline Control Area Populations Related EIA

  5. Diesel vs Gasoline Production | Department of Energy

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

    vs Gasoline Production Diesel vs Gasoline Production A look at refinery decisions that decide "swing" between diesel and gasoline production PDF icon deer08_leister.pdf More Documents & Publications Marathon Sees Diesel Fuel in Future ITP Petroleum Refining: Energy Bandwidth for Petroleum Refining Processes ITP Petroleum Refining: Profile of the Petroleum Refining Industry in California: California Industries of the Future Program

  6. Microsoft Word - Gasoline_2008 Supplement.doc

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

    8 1 April 2008 Short-Term Energy Outlook Supplement: Motor Gasoline Consumption 2008 A Historical Perspective and Short-Term Projections 1 Highlights * Income growth rates have less of an impact on recent trends in gasoline consumption than in the past, but short-run effects are still significant. * High gasoline prices are once again motivating drivers to conserve by driving less and purchasing more fuel-efficient transportation. * The increasing share of lower-Btu-content ethanol has

  7. California Gasoline Price Study, 2003 Preliminary Findings

    Reports and Publications (EIA)

    2003-01-01

    This is the preliminary report to Congressman Ose describing the factors driving California's spring 2003 gasoline price spike and the subsequent price increases in June and August.

  8. Eliminating MTBE in Gasoline in 2006

    Gasoline and Diesel Fuel Update (EIA)

    in 2006. Companies' decisions to eliminate MTBE have been driven by State bans due to water contamination concerns, continuing liability exposure from adding MTBE to gasoline,...

  9. What Drives U.S. Gasoline Prices?

    U.S. Energy Information Administration (EIA) Indexed Site

    ... Past EIA research and analysis 1 has shown that changes in wholesale gasoline ... price. 3 http:www.eia.govpetroleumgasdieselpumpmethodology.cfm 4 This Week In Petroleum ...

  10. Motor Gasoline Outlook and State MTBE Bans

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

    Motor Gasoline Outlook and State MTBE Bans Tancred Lidderdale Contents 1. Summary 2. MTBE Supply and Demand 3. Ethanol Supply 4. Gasoline Supply 5. Gasoline Prices A. Long-Term Equilibrium Price Analysis B. Short-Term Price Volatility 6. Conclusion 7. Appendix A. Estimating MTBE Consumption by State 8. Appendix B. MTBE Imports and Exports 9. Appendix C. Glossary of Terms 10. End Notes 11. References 1. Summary The U.S. is beginning the summer 2003 driving season with lower gasoline inventories

  11. ,"Motor Gasoline Sales Through Retail Outlets Prices "

    U.S. Energy Information Administration (EIA) Indexed Site

    ,"Worksheet Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","Motor Gasoline Sales Through Retail Outlets Prices ",60,"Annual",2014,"6301984" ,"Release...

  12. Summer 2002 Motor Gasoline Outlook2.doc

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

    ... as shown in Figure MG2. Uniquely stringent air quality standards imposed on gasoline sales ... regional phenomenon: the more stringent pollution requirements resulted in ...

  13. Two-Stage Variable Compression Ratio (VCR) System to Increase...

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

    Stage Variable Compression Ratio (VCR) System to Increase Efficiency in Gasoline Powertrains Two-Stage Variable Compression Ratio (VCR) System to Increase Efficiency in Gasoline ...

  14. Be a Lean, Mean, Green Eating Machine | Department of Energy

    Energy Savers [EERE]

    Be a Lean, Mean, Green Eating Machine Be a Lean, Mean, Green Eating Machine January 31, ... for the year ahead, to understand his energy outlook and plans, and of course, to see ...

  15. Comparing Scales of Environmental Effects from Gasoline and Ethanol Production

    SciTech Connect (OSTI)

    Parish, Esther S; Kline, Keith L; Dale, Virginia H; Efroymson, Rebecca Ann; McBride, Allen; Johnson, Timothy L; Hilliard, Michael R; Bielicki, Dr Jeffrey M

    2013-01-01

    Understanding the environmental effects of alternative fuel production is critical to characterizing the sustainability of energy resources to inform policy and regulatory decisions. The magnitudes of these environmental effects vary according to the intensity and scale of fuel production along each step of the supply chain. We compare the scales (i.e., spatial extent and temporal duration) of ethanol and gasoline production processes and environmental effects based on a literature review, and then synthesize the scale differences on space-time diagrams. Comprehensive assessment of any fuel-production system is a moving target, and our analysis shows that decisions regarding the selection of spatial and temporal boundaries of analysis have tremendous influences on the comparisons. Effects that strongly differentiate gasoline and ethanol supply chains in terms of scale are associated with when and where energy resources are formed and how they are extracted. Although both gasoline and ethanol production may result in negative environmental effects, this study indicates that ethanol production traced through a supply chain may impact less area and result in more easily reversed effects of a shorter duration than gasoline production.

  16. Lean-NOx Catalyst Development for Diesel Engine Applications | Department

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

    of Energy Lean-NOx Catalyst Development for Diesel Engine Applications Lean-NOx Catalyst Development for Diesel Engine Applications 2002 DEER Conference Presentation: Caterpillar Inc. PDF icon 2002_deer_park.pdf More Documents & Publications Lean NOx Catalysis Research and Development Selective reduction of NOx in oxygen rich environments with plasma-assisted catalysis: Catalyst development and mechanistic studies Plasma-Activated Lean NOx Catalysis for Heavy-Duty Diesel Emissions

  17. Pt-free, Perovskite-based Lean NOx Trap Catalysts

    Broader source: Energy.gov [DOE]

    Perovskite-based lean NOx catalysts shown to achieve comparable NOx reduction performance as commercial platinum based counterpart

  18. Benchmark Reaction Mechanisms and Kinetics for Lean NOx Traps | Department

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

    of Energy Benchmark Reaction Mechanisms and Kinetics for Lean NOx Traps Benchmark Reaction Mechanisms and Kinetics for Lean NOx Traps 2009 DOE Hydrogen Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting, May 18-22, 2009 -- Washington D.C. PDF icon acep_01_larson.pdf More Documents & Publications Development of Chemical Kinetic Models for Lean NOx Traps Development of Optimal Catalyst Designs and Operating Strategies for Lean NOx Reduction in Coupled

  19. Long Beach Transit: Two-Year Evaluation of Gasoline-Electric Hybrid Transit Buses

    SciTech Connect (OSTI)

    Lammert, M.

    2008-06-01

    This report focuses on a gasoline-electric hybrid transit bus propulsion system. The propulsion system is an alternative to standard diesel buses and allows for reductions in emissions (usually focused on reductions of particulate matter and oxides of nitrogen) and petroleum use. Gasoline propulsion is an alternative to diesel fuel and hybrid propulsion allows for increased fuel economy, which ultimately results in reduced petroleum use.

  20. Load Expansion with Diesel/Gasoline RCCI for Improved Engine...

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

    with DieselGasoline RCCI for Improved Engine Efficiency and Emissions Load Expansion with DieselGasoline RCCI for Improved Engine Efficiency and Emissions This poster will...

  1. Fact #890: September 14, 2015 Gasoline Prices Are Affected by...

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

    Fact 890: September 14, 2015 Gasoline Prices Are Affected by Changes in Refinery Output - Dataset Excel file and dataset for Gasoline Prices Are Affected by Changes in Refinery ...

  2. Design Case Summary: Production of Gasoline and Diesel from Biomass...

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

    Design Case Summary: Production of Gasoline and Diesel from Biomass via Fast Pyrolysis, Hydrotreating, and Hydrocracking Design Case Summary: Production of Gasoline and Diesel from ...

  3. Dispensing Equipment Testing With Mid-Level Ethanol/Gasoline...

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

    Dispensing Equipment Testing With Mid-Level EthanolGasoline Test Fluid Dispensing Equipment Testing With Mid-Level EthanolGasoline Test Fluid The National Renewable Energy...

  4. An Experimental Investigation of Low Octane Gasoline in Diesel...

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

    Low Octane Gasoline in Diesel Engines An Experimental Investigation of Low Octane Gasoline in Diesel Engines Presentation given at the 16th Directions in Engine-Efficiency and...

  5. 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.

  6. Production of Gasoline and Diesel from Biomass via Fast Pyrolysis...

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

    Production of Gasoline and Diesel from Biomass via Fast Pyrolysis, Hydrotreating and Hydrocracking: A Design Case Production of Gasoline and Diesel from Biomass via Fast Pyrolysis, ...

  7. Oxidation characteristics of gasoline direct-injection (GDI)...

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

    characteristics of gasoline direct-injection (GDI) engine soot: Catalytic effects of ash and modified kinetic correlation Title Oxidation characteristics of gasoline...

  8. Advantages of Oxygenates Fuels over Gasoline in Direct Injection...

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

    Advantages of Oxygenates Fuels over Gasoline in Direct Injection Spark Ignition Engines Advantages of Oxygenates Fuels over Gasoline in Direct Injection Spark Ignition Engines ...

  9. 3-Cylinder Turbocharged Gasoline Direct Injection: A High Value...

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

    Cylinder Turbocharged Gasoline Direct Injection: A High Value Solution for Euro VI Emissions 3-Cylinder Turbocharged Gasoline Direct Injection: A High Value Solution for Euro VI ...

  10. Characterization of Pre-Commercial Gasoline Engine Particulates...

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

    Pre-Commercial Gasoline Engine Particulates Through Advanced Aerosol Methods Characterization of Pre-Commercial Gasoline Engine Particulates Through Advanced Aerosol Methods...

  11. Improving Ethanol-Gasoline Blends by Addition of Higher Alcohols

    Broader source: Energy.gov [DOE]

    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.

  12. Education Highlights: Gasoline Compression Ignition | Argonne National

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

    Laboratory Education Highlights: Gasoline Compression Ignition Share Description Argonne intern Kendyl Partridge from Mississippi State University worked with Argonne mentor Steve Ciatti in studying gasoline compression ignition engines. This research will help engineers increase an engine's efficiency while reducing its environmental impact. Speakers Kendyl Partridge, Argonne National Laboratory Intern from Mississippi State University Duration 1:56 Topic Energy Energy efficiency Vehicles

  13. Gasoline prices continue to decrease (short version)

    Gasoline and Diesel Fuel Update (EIA)

    Gasoline prices continue to decrease (short version) The U.S. average retail price for regular gasoline fell to $3.29 a gallon on Monday. That's down 3-tenths of a penny from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  14. Gasoline prices continue to increase (short version)

    Gasoline and Diesel Fuel Update (EIA)

    Gasoline prices continue to increase (short version) The U.S. average retail price for regular gasoline rose to $3.44 a gallon on Monday. That's up 6.4 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  15. Gasoline prices continue to increase (short version)

    Gasoline and Diesel Fuel Update (EIA)

    Gasoline prices continue to increase (short version) The U.S. average retail price for regular gasoline rose to $3.48 a gallon on Monday. That's up 3 ½ cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  16. Gasoline prices continue to increase (short version)

    Gasoline and Diesel Fuel Update (EIA)

    Gasoline prices continue to increase (short version) The U.S. average retail price for regular gasoline rose to $3.51 a gallon on Monday. That's up 3.3 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  17. Gasoline prices continue to increase (short version)

    Gasoline and Diesel Fuel Update (EIA)

    Gasoline prices continue to increase (short version) The U.S. average retail price for regular gasoline rose to $3.55 a gallon on Monday. That's up 3½ cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  18. Gasoline prices continue to increase (short version)

    Gasoline and Diesel Fuel Update (EIA)

    4, 2014 Gasoline prices continue to increase (short version) The U.S. average retail price for regular gasoline rose to $3.65 a gallon on Monday. That's up 5½ cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. This is Amerine Woodyard, with EIA, in Washington.

  19. Gasoline prices continue to increase (short version)

    Gasoline and Diesel Fuel Update (EIA)

    1, 2014 Gasoline prices continue to increase (short version) The U.S. average retail price for regular gasoline rose to $3.68 a gallon on Monday. That's up 3.2 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. This is Amerine Woodyard, with EIA, in Washington.

  20. Gasoline prices continue to rise (Short version)

    Gasoline and Diesel Fuel Update (EIA)

    Gasoline prices continue to rise (short version) The U.S. average retail price for regular gasoline rose to $3.67 a gallon on Monday. That's up 7 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  1. Gasoline and Diesel Fuel Update

    Gasoline and Diesel Fuel Update (EIA)

    Gasoline Pump Components History WHAT WE PAY FOR IN A GALLON OF REGULAR GASOLINE Mon-yr Retail Price (Dollars per gallon) Refining (percentage) Distribution & Marketing (percentage) Taxes (percentage) Crude Oil (percentage) Jan-00 1.289 7.8 13.0 32.1 47.1 Feb-00 1.377 17.9 7.5 30.1 44.6 Mar-00 1.517 15.4 12.8 27.3 44.6 Apr-00 1.465 10.1 20.2 28.3 41.4 May-00 1.485 20.2 9.2 27.9 42.7 Jun-00 1.633 22.2 8.8 25.8 43.1 Jul-00 1.551 13.2 15.8 27.2 43.8 Aug-00 1.465 15.8 7.5 28.8 47.8 Sep-00 1.550

  2. Assessment of Summer 1997 Motor Gasoline Price Increase

    Reports and Publications (EIA)

    1998-01-01

    Assesses the 1997 late summer gasoline market and some of the important issues surrounding that event.

  3. EIA lowers forecast for summer gasoline prices

    Gasoline and Diesel Fuel Update (EIA)

    EIA lowers forecast for summer gasoline prices U.S. gasoline prices are expected to be lower this summer than previously thought. The price for regular gasoline this summer is now expected to average $3.53 a gallon, according to the new monthly forecast from the U.S. Energy Information Administration. That's down 10 cents from last month's forecast and 16 cents cheaper than last summer. After reaching a weekly peak of $3.78 a gallon in late February, pump prices fell nine weeks in a row to $3.52

  4. FUEL INTERCHANGEABILITY FOR LEAN PREMIXED COMBUSTION IN GAS TURBINE ENGINES

    SciTech Connect (OSTI)

    Don Ferguson; Geo. A. Richard; Doug Straub

    2008-06-13

    In response to environmental concerns of NOx emissions, gas turbine manufacturers have developed engines that operate under lean, pre-mixed fuel and air conditions. While this has proven to reduce NOx emissions by lowering peak flame temperatures, it is not without its limitations as engines utilizing this technology are more susceptible to combustion dynamics. Although dependent on a number of mechanisms, changes in fuel composition can alter the dynamic response of a given combustion system. This is of particular interest as increases in demand of domestic natural gas have fueled efforts to utilize alternatives such as coal derived syngas, imported liquefied natural gas and hydrogen or hydrogen augmented fuels. However, prior to changing the fuel supply end-users need to understand how their system will respond. A variety of historical parameters have been utilized to determine fuel interchangeability such as Wobbe and Weaver Indices, however these parameters were never optimized for todays engines operating under lean pre-mixed combustion. This paper provides a discussion of currently available parameters to describe fuel interchangeability. Through the analysis of the dynamic response of a lab-scale Rijke tube combustor operating on various fuel blends, it is shown that commonly used indices are inadequate for describing combustion specific phenomena.

  5. Alternative Fuels Data Center: Michigan Fleet Reduces Gasoline and Diesel

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

    Use Michigan Fleet Reduces Gasoline and Diesel Use to someone by E-mail Share Alternative Fuels Data Center: Michigan Fleet Reduces Gasoline and Diesel Use on Facebook Tweet about Alternative Fuels Data Center: Michigan Fleet Reduces Gasoline and Diesel Use on Twitter Bookmark Alternative Fuels Data Center: Michigan Fleet Reduces Gasoline and Diesel Use on Google Bookmark Alternative Fuels Data Center: Michigan Fleet Reduces Gasoline and Diesel Use on Delicious Rank Alternative Fuels Data

  6. Insights into Spring 2008 Gasoline Prices

    Reports and Publications (EIA)

    2008-01-01

    Gasoline prices rose rapidly in spring 2007 due a variety of factors, including refinery outages and lower than expected imports. This report explores those factors and looks at the implications for 2008.

  7. Gasoline prices inch down slightly (short version)

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

    short version) The U.S. average retail price for regular gasoline fell slightly to 3.54 a gallon on Monday. That's down 6-tenths of a penny from a week ago, based on the weekly...

  8. Reformulated Gasoline Market Affected Refiners Differently, 1995

    Reports and Publications (EIA)

    1996-01-01

    This article focuses on the costs of producing reformulated gasoline (RFG) as experienced by different types of refiners and on how these refiners fared this past summer, given the prices for RFG at the refinery gate.

  9. Inquiry into August 2003 Gasoline Price Spike

    Reports and Publications (EIA)

    2003-01-01

    U.S. Secretary of Energy Spencer Abraham requested that the Energy Information Administration conduct an inquiry into the causes of the price increases of gasoline in July and August of 2003.

  10. U.S. gasoline prices increase slightly

    U.S. Energy Information Administration (EIA) Indexed Site

    long version) The U.S. average retail price for regular gasoline rose slightly to 3.55 a gallon on Monday. That's up 2-tenths of a penny from a week ago, based on the weekly price...

  11. Gasoline prices rise again (long version)

    U.S. Energy Information Administration (EIA) Indexed Site

    long version) The U.S. average retail price for regular gasoline rose to 3.78 a gallon on Monday. That's up 3.7 cents from a week ago and up almost 43 cents from 4 weeks ago,...

  12. Gasoline prices inch down (short version)

    U.S. Energy Information Administration (EIA) Indexed Site

    short version) The U.S. average retail price for regular gasoline fell to 3.68 a gallon on Monday. That's down 1.6 cents from a week ago, based on the weekly price survey by the...

  13. Gasoline prices inch up (long version)

    U.S. Energy Information Administration (EIA) Indexed Site

    long version) The U.S. average retail price for regular gasoline rose slightly to 3.66 a gallon on Monday. That's up nine tenths of a penny from a week ago, based on the weekly...

  14. Gasoline prices inch down (Short version)

    U.S. Energy Information Administration (EIA) Indexed Site

    short version) The U.S. average retail price for regular gasoline rose slightly to 3.66 a gallon on Monday. That's up nine tenths of a penny from a week ago, based on the weekly...

  15. Gasoline prices fall slightly (long version)

    U.S. Energy Information Administration (EIA) Indexed Site

    long version) The U.S. average retail price for regular gasoline fell slightly to 3.49 a gallon on Monday. That's down 4-tenths of a penny from a week ago, based on the weekly...

  16. Gasoline prices fall slightly (short version)

    U.S. Energy Information Administration (EIA) Indexed Site

    short version) The U.S. average retail price for regular gasoline fell slightly to 3.49 a gallon on Monday. That's down 4-tenths of a penny from a week ago, based on the weekly...

  17. Summer 2003 Motor Gasoline Outlook.doc

    Gasoline and Diesel Fuel Update (EIA)

    3 1 Short-Term Energy Outlook April 2003 Summer 2003 Motor Gasoline Outlook Summary For the upcoming summer season (April to September 2003), high crude oil costs and other factors are expected to yield average retail motor gasoline prices higher than those of last year. Current crude oil prices reflect a substantial uncertainty premium due to concerns about the current conflict in the Persian Gulf, lingering questions about whether Venezuelan oil production will recover to near pre-strike

  18. Flashback detection sensor for lean premix fuel nozzles

    DOE Patents [OSTI]

    Thornton, Jimmy Dean (Morgantown, WV); Richards, George Alan (Morgantown, WV); Straub, Douglas L. (Morgantown, WV); Liese, Eric Arnold (Morgantown, WV); Trader, Jr., John Lee (Morgantown, WV); Fasching, George Edward (Morgantown, WV)

    2002-08-06

    A sensor for detecting the flame occurring during a flashback condition in the fuel nozzle of a lean premix combustion system is presented. The sensor comprises an electrically isolated flashback detection electrode and a guard electrode, both of which generate electrical fields extending to the walls of the combustion chamber and to the walls of the fuel nozzle. The sensor is positioned on the fuel nozzle center body at a location proximate the entrance to the combustion chamber of the gas turbine combustion system. The sensor provides 360.degree. detection of a flashback inside the fuel nozzle, by detecting the current conducted by the flame within a time frame that will prevent damage to the gas turbine combustion system caused by the flashback condition.

  19. Three-Dimensional Composite Nanostructures for Lean NOx Emission Control |

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

    Department of Energy 0 DOE Vehicle Technologies and Hydrogen Programs Annual Merit Review and Peer Evaluation Meeting, June 7-11, 2010 -- Washington D.C. PDF icon ace030_gao_2010_o.pdf More Documents & Publications Three-Dimensional Composite Nanostructures for Lean NOx Emission Control Monolithic Metal Oxide based Composite Nanowire Lean NOx Emission Control Catalysts Three-Dimensional Composite Nanostructures for Lean NOx Emission Control

  20. Three-Dimensional Composite Nanostructures for Lean NOx Emission...

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

    More Documents & Publications Monolithic Metal Oxide based Composite Nanowire Lean NOx Emission Control Catalysts Vehicle Technologies Office Merit Review 2015: Metal Oxide...

  1. Lean NOx Traps - Microstructural Studies of Real World and Model...

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

    Traps - Microstructural Studies of Real World and Model Catalysts Lean NOx Traps - Microstructural Studies of Real World and Model Catalysts 2005 Diesel Engine Emissions Reduction...

  2. The potential for low petroleum gasoline

    SciTech Connect (OSTI)

    Hadder, G.R.; Webb, G.M.; Clauson, M.

    1996-06-01

    The Energy Policy Act requires the Secretary of Energy to determine the feasibility of producing sufficient replacement fuels to replace at least 30 percent of the projected consumption of motor fuels by light duty vehicles in the year 2010. The Act also requires the Secretary to determine the greenhouse gas implications of the use of replacement fuels. A replacement fuel is a non-petroleum portion of gasoline, including certain alcohols, ethers, and other components. The Oak Ridge National Laboratory Refinery Yield Model has been used to study the cost and refinery impacts for production of {open_quotes}low petroleum{close_quotes} gasolines, which contain replacement fuels. The analysis suggests that high oxygenation is the key to meeting the replacement fuel target, and a major contributor to cost increase is investment in processes to produce and etherify light olefins. High oxygenation can also increase the costs of control of vapor pressure, distillation properties, and pollutant emissions of gasolines. Year-round low petroleum gasoline with near-30 percent non-petroleum components might be produced with cost increases of 23 to 37 cents per gallon of gasoline, and with greenhouse gas emissions changes between a 3 percent increase and a 16 percent decrease. Crude oil reduction, with decreased dependence on foreign sources, is a major objective of the low petroleum gasoline program. For year-round gasoline with near-30 percent non-petroleum components, crude oil use is reduced by 10 to 12 percent, at a cost $48 to $89 per barrel. Depending upon resolution of uncertainties about extrapolation of the Environmental Protection Agency Complex Model for pollutant emissions, availability of raw materials and other issues, costs could be lower or higher.

  3. Ethanol Demand in United States Gasoline Production

    SciTech Connect (OSTI)

    Hadder, G.R.

    1998-11-24

    The Oak Ridge National Laboratory (OWL) Refinery Yield Model (RYM) has been used to estimate the demand for ethanol in U.S. gasoline production in year 2010. Study cases examine ethanol demand with variations in world oil price, cost of competing oxygenate, ethanol value, and gasoline specifications. For combined-regions outside California summer ethanol demand is dominated by conventional gasoline (CG) because the premised share of reformulated gasoline (RFG) production is relatively low and because CG offers greater flexibility for blending high vapor pressure components like ethanol. Vapor pressure advantages disappear for winter CG, but total ethanol used in winter RFG remains low because of the low RFG production share. In California, relatively less ethanol is used in CG because the RFG production share is very high. During the winter in California, there is a significant increase in use of ethanol in RFG, as ethanol displaces lower-vapor-pressure ethers. Estimated U.S. ethanol demand is a function of the refiner value of ethanol. For example, ethanol demand for reference conditions in year 2010 is 2 billion gallons per year (BGY) at a refiner value of $1.00 per gallon (1996 dollars), and 9 BGY at a refiner value of $0.60 per gallon. Ethanol demand could be increased with higher oil prices, or by changes in gasoline specifications for oxygen content, sulfur content, emissions of volatile organic compounds (VOCS), and octane numbers.

  4. Lean NOx Catalysis Research and Development | Department of Energy

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

    NOx Catalysis Research and Development Lean NOx Catalysis Research and Development 2003 DEER Conference Presentation: Caterpillar, Inc. PDF icon 2003_deer_park.pdf More Documents & Publications Lean-NOx Catalyst Development for Diesel Engine Applications Fuel Effects on Emissions Control Technologies Fuel Effects on Emissions Control Technologies

  5. Gasoline from Wood via Integrated Gasification, Synthesis, and Methanol-to-Gasoline Technologies

    SciTech Connect (OSTI)

    Phillips, S. D.; Tarud, J. K.; Biddy, M. J.; Dutta, A.

    2011-01-01

    This report documents the National Renewable Energy Laboratory's (NREL's) assessment of the feasibility of making gasoline via the methanol-to-gasoline route using syngas from a 2,000 dry metric tonne/day (2,205 U.S. ton/day) biomass-fed facility. A new technoeconomic model was developed in Aspen Plus for this study, based on the model developed for NREL's thermochemical ethanol design report (Phillips et al. 2007). The necessary process changes were incorporated into a biomass-to-gasoline model using a methanol synthesis operation followed by conversion, upgrading, and finishing to gasoline. Using a methodology similar to that used in previous NREL design reports and a feedstock cost of $50.70/dry ton ($55.89/dry metric tonne), the estimated plant gate price is $16.60/MMBtu ($15.73/GJ) (U.S. $2007) for gasoline and liquefied petroleum gas (LPG) produced from biomass via gasification of wood, methanol synthesis, and the methanol-to-gasoline process. The corresponding unit prices for gasoline and LPG are $1.95/gallon ($0.52/liter) and $1.53/gallon ($0.40/liter) with yields of 55.1 and 9.3 gallons per U.S. ton of dry biomass (229.9 and 38.8 liters per metric tonne of dry biomass), respectively.

  6. Fast-regenerable sulfur dioxide absorbents for lean-burn diesel engine emission control

    SciTech Connect (OSTI)

    Li, Liyu; King, David L.

    2010-01-23

    It is known that sulfur oxides contribute significantly and deleteriously to the overall performance of lean-burn diesel engine aftertreatment systems, especially in the case of NOx traps. A Ag-based, fast regenerable SO2 absorbent has been developed and will be described. Over a temperature range of 300oC to 550oC, it absorbs almost all of the SO2 in the simulated exhaust gases during the lean cycles and can be fully regenerated by the short rich cycles at the same temperature. Its composition has been optimized as 1 wt% Pt-5wt%Ag-SiO2, and the preferred silica source for the supporting material has been identified as inert Cabosil fumed silica. The thermal instability of Ag2O under fuel-lean conditions at 230oC and above makes it possible to fast regenerate the sulfur-loaded absorbent during the following fuel-rich cycles. Pt catalyst helps reducing Ag2SO4 during rich cycles at low temperatures. And the chemically inert fumed SiO2 support gives the absorbent long term stability. This absorbent shows great potential to work under the same lean-rich cycling conditions as those imposed on the NOx traps, and thus, can protect the downstream particulate filter and the NOx trap from sulfur poisoning.

  7. Motor Gasoline Market Spring 2007 and Implications for Spring 2008

    Reports and Publications (EIA)

    2008-01-01

    This report focuses on the major factors that drove the widening difference between wholesale gasoline and crude oil prices in 2007 and explores how those factors might impact gasoline prices in 2008.

  8. Fact #835: August 25, 2014 Average Annual Gasoline Pump Price...

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

    Fact 835: August 25, 2014 Average Annual Gasoline Pump Price, 1929-2013 - Dataset Excel file with dataset for Fact 835: Average Annual Gasoline Pump Price, 1929-2013 File ...

  9. Fact #915: March 7, 2016 Average Historical Annual Gasoline Pump...

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

    Fact 915: March 7, 2016 Average Historical Annual Gasoline Pump Price, 1929-2015 - Dataset Excel file and dataset for Average Historical Annual Gasoline Pump Price, 1929-2015 File ...

  10. Enabling and Expanding HCCI in PFI Gasoline Engines with High...

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

    and Expanding HCCI in PFI Gasoline Engines with High EGR and Spark Assist Enabling and Expanding HCCI in PFI Gasoline Engines with High EGR and Spark Assist 2005 Diesel Engine...

  11. Combustion and Emissions Performance of Dual-Fuel Gasoline and...

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

    Combustion and Emissions Performance of Dual-Fuel Gasoline and Diesel HECC on a Multi-Cylinder Light Duty Diesel Engine Combustion and Emissions Performance of Dual-Fuel Gasoline...

  12. Plasma-Activated Lean NOx Catalysis for Heavy-Duty Diesel Emissions...

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

    Plasma-Activated Lean NOx Catalysis for Heavy-Duty Diesel Emissions Control Plasma-Activated Lean NOx Catalysis for Heavy-Duty Diesel Emissions Control PDF icon ...

  13. Motor Gasoline Market Model documentation report

    SciTech Connect (OSTI)

    Not Available

    1993-09-01

    The purpose of this report is to define the objectives of the Motor Gasoline Market Model (MGMM), describe its basic approach and to provide detail on model functions. This report is intended as a reference document for model analysts, users, and the general public. The MGMM performs a short-term (6- to 9-month) forecast of demand and price for motor gasoline in the US market; it also calculates end of month stock levels. The model is used to analyze certain market behavior assumptions or shocks and to determine the effect on market price, demand and stock level.

  14. Gasoline prices continue to decrease (long version)

    Gasoline and Diesel Fuel Update (EIA)

    3, 2014 Gasoline prices continue to decrease (long version) The U.S. average retail price for regular gasoline fell to $3.29 a gallon on Monday. That's down 3-tenths of a penny from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Pump prices were highest in the West Coast states at 3.49 a gallon, up 6-tenths of a penny from a week ago. Prices were lowest in the Gulf Coast region at 3.08 a gallon, down 9-tenths of a penny. This is Amerine Woodyard, with

  15. Gasoline prices continue to decrease (long version)

    Gasoline and Diesel Fuel Update (EIA)

    19, 2014 Gasoline prices continue to decrease (long version) The U.S. average retail price for regular gasoline fell to $3.67 a gallon on Monday. That's down 3-tenths of a penny from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Pump prices were highest in the West Coast states at 4.02 a gallon, down 7-tenths of a penny from a week ago. Prices were lowest in the Gulf Coast region at 3.44 a gallon, up 2-tenths of a penny.

  16. Gasoline prices continue to fall (long version)

    Gasoline and Diesel Fuel Update (EIA)

    Gasoline prices continue to fall (long version) The U.S. average retail price for regular gasoline decreased for the second week in a row to $3.71 a gallon on Monday. That's down 4.9 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Pump prices were highest in the West Coast region at 4.05 a gallon, down 2 cents from a week ago. Prices were lowest in the Rocky Mountain States at 3.47 a gallon, down 7-tenths of a penny

  17. Gasoline prices continue to fall (long version)

    Gasoline and Diesel Fuel Update (EIA)

    Gasoline prices continue to fall (long version) The U.S. average retail price for regular gasoline fell to $3.61 a gallon on Monday. That's down 3.7 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Pump prices were highest in the West Coast region at 3.93 a gallon, down 1.7 cents from a week ago. Prices were lowest in the Gulf Coast States at 3.43 a gallon, down 4.6

  18. Gasoline prices continue to increase (long version)

    Gasoline and Diesel Fuel Update (EIA)

    , 2014 Gasoline prices continue to increase (long version) The U.S. average retail price for regular gasoline rose to $3.48 a gallon on Monday. That's up 3 ½ cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Pump prices were highest in the West Coast states at 3.71 a gallon, up 5.6 cents from a week ago. Prices were lowest in the Gulf Coast region at 3.23 a gallon, up 1.8 cents. This is Marcela Rourk, with EIA, in Washington.

  19. Gasoline prices continue to increase (long version)

    Gasoline and Diesel Fuel Update (EIA)

    March 10, 2014 Gasoline prices continue to increase (long version) The U.S. average retail price for regular gasoline rose to $3.51 a gallon on Monday. That's up 3.3 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Pump prices were highest in the West Coast states at 3.76 a gallon, up 4.7 cents from a week ago. Prices were lowest in the Gulf Coast region at 3.25 a gallon, up 2 ½ cents.

  20. Gasoline prices continue to increase (long version)

    Gasoline and Diesel Fuel Update (EIA)

    7, 2014 Gasoline prices continue to increase (long version) The U.S. average retail price for regular gasoline rose to $3.55 a gallon on Monday. That's up 3½ cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Pump prices were highest in the West Coast states at 3.81 a gallon, up 5½ cents from a week ago. Prices were lowest in the Gulf Coast region at 3.28 a gallon, up 3.1 cents. This is Marcela Rourk, with EIA, in Washington.

  1. Gasoline prices continue to increase (long version)

    Gasoline and Diesel Fuel Update (EIA)

    14, 2014 Gasoline prices continue to increase (long version) The U.S. average retail price for regular gasoline rose to $3.65 a gallon on Monday. That's up 5½ cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Pump prices were highest in the West Coast states at 3.98 a gallon, up 9.7 cents from a week ago. Prices were lowest in the Rocky Mountain states at 3.44 a gallon, down 8-tenths of a penny

  2. Gasoline prices continue to increase (long version)

    Gasoline and Diesel Fuel Update (EIA)

    21, 2014 Gasoline prices continue to increase (long version) The U.S. average retail price for regular gasoline rose to $3.68 a gallon on Monday. That's up 3.2 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Pump prices were highest in the West Coast states at 4.03 a gallon, up a nickel from a week ago. Prices were lowest in the Rocky Mountain states at 3.45 a gallon, up 8-tenths of a penny

  3. Gasoline prices continue to increase (long version)

    Gasoline and Diesel Fuel Update (EIA)

    24, 2014 Gasoline prices continue to increase (long version) The U.S. average retail price for regular gasoline rose to $3.44 a gallon on Monday. That's up 6.4 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Pump prices were highest in the West Coast states at 3.65 a gallon, up 8 cents from a week ago. Prices were lowest in the Gulf Coast region at 3.21 a gallon, up

  4. Gasoline prices continue to rise (long version)

    Gasoline and Diesel Fuel Update (EIA)

    Gasoline prices continue to rise (long version) The U.S. average retail price for regular gasoline rose to $3.67 a gallon on Monday. That's up 7 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Pump prices were highest in the West Coast region at 3.95 a gallon, up 1.4 cents from a week ago. Prices were lowest in the Gulf Coast States at 3.39 a gallon, up 2.8 cents. The Midwest region boasted the highest weekly increase at 18.8 cents with

  5. Why Do Motor Gasoline Prices Vary Regionally? California Case Study

    Reports and Publications (EIA)

    1998-01-01

    Analysis of the difference between the retail gasoline prices in California and the average U.S. retail prices.

  6. Advanced Particulate Filter Technologies for Direct Injection Gasoline

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

    Engine Applications | Department of Energy Particulate Filter Technologies for Direct Injection Gasoline Engine Applications Advanced Particulate Filter Technologies for Direct Injection Gasoline Engine Applications Specific designs and material properties have to be developed for gasoline particulate filters based on the different engine and exhaust gas characteristic of gasoline engines compared to diesel engines, e.g., generally lower levels of engine-out particulate emissions or higher

  7. Demand and Price Outlook for Phase 2 Reformulated Gasoline, 2000

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

    Demand and Price Outlook for Phase 2 Reformulated Gasoline, 2000 Tancred Lidderdale and Aileen Bohn (1) Contents * Summary * Introduction * Reformulated Gasoline Demand * Oxygenate Demand * Logistics o Interstate Movements and Storage o Local Distribution o Phase 2 RFG Logistics o Possible Opt-Ins to the RFG Program o State Low Sulfur, Low RVP Gasoline Initiatives o NAAQS o Tier 2 Gasoline * RFG Production Options o Toxic Air Pollutants (TAP) Reduction o Nitrogen Oxides (NOx) Reduction o

  8. National Survey of E85 and Gasoline Prices

    SciTech Connect (OSTI)

    Bergeron, P.

    2008-10-01

    Study compares the prices of E85 and regular gasoline nationally and regionally over time for one year.

  9. Fact #565: April 6, 2009 Household Gasoline Expenditures by Income |

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

    Department of Energy 5: April 6, 2009 Household Gasoline Expenditures by Income Fact #565: April 6, 2009 Household Gasoline Expenditures by Income In the annual Consumer Expenditure Survey, household incomes are grouped into five equal parts called quintiles (each quintile is 20%). Households in the second and third quintiles consistently have a higher share of spending on gasoline each year than households in the other quintiles. Household Gasoline Expenditures by Income Quintile Bar graph

  10. DOE's Gasoline/Diesel PM Split Study | Department of Energy

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

    3 DEER Conference Presentation: Desert Research Institute PDF icon 2003_deer_fujita.pdf More Documents & Publications DOE's Gasoline/Diesel PM Split Study DOE's Gasoline/Diesel PM Split Study Long-Term Changes in Gas- and Particle-Phase Emissions from On-Road Diesel and Gasoline Vehicles

  11. Eliminating MTBE in Gasoline in 2006

    Reports and Publications (EIA)

    2006-01-01

    A review of the market implications resulting from the rapid change from methyl tertiary butyl ether (MTBE) to ethanol-blended reformulated gasoline (RFG) on the East Coast and in Texas. Strains in ethanol supply and distribution will increase the potential for price volatility in these regions this summer.

  12. Gasoline prices show sharp increase (short version)

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

    short version) The U.S. average retail price for regular gasoline saw its sharpest increase this year at $3.54 a gallon on Monday. That's up 18.1 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  13. Gasoline prices up this week (short version)

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

    short version) The U.S. average retail price for regular gasoline rose to $3.61 a gallon on Monday. That's up 7.3 cents from a week ago and up 25.4 cents from two weeks ago, based on the weekly price survey by the U.S. Energy Information Administration.

  14. Gasoline prices up this week (short version)

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

    short version) The U.S. average retail price for regular gasoline rose to $3.75 a gallon on Monday. That's up almost 14 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  15. Gasoline prices up this week (short version)

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

    short version) The U.S. average retail price for regular gasoline rose to $3.78 a gallon on Monday. That's up 3.7 cents from a week ago and up almost 43 cents from 4 weeks ago, based on the weekly price survey by the U.S. Energy Information Administration.

  16. Gasoline price shows small increase (Short version)

    Gasoline and Diesel Fuel Update (EIA)

    shows small increase (Short version) The U.S. average retail price for regular gasoline rose to $3.32 a gallon on Monday. That's up 1.2 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  17. Gasoline price shows small increase (short version)

    Gasoline and Diesel Fuel Update (EIA)

    Short version) The U.S. average retail price for regular gasoline showed little movement from last week. Prices rose 4/10 of a cent to $3.30 a gallon on Monday, based on the weekly price survey by the U.S. Energy Information Administration.

  18. Gasoline price up this week (short version)

    Gasoline and Diesel Fuel Update (EIA)

    short version) The U.S. average retail price for regular gasoline rose to $3.36 a gallon on Monday. That's up 4.2 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  19. Gasoline prices continue to decrease (short version)

    Gasoline and Diesel Fuel Update (EIA)

    (short version) The U.S. average retail price for regular gasoline fell to $3.65 a gallon on Monday. That's down 3 1/2 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. This is Amerine Woodyard, with EIA, in Washington.

  20. Gasoline prices continue to decrease (short version)

    Gasoline and Diesel Fuel Update (EIA)

    short version) The U.S. average retail price for regular gasoline fell to $3.50 a gallon on Monday. That's down 8.1 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  1. Gasoline prices continue to fall (short version)

    Gasoline and Diesel Fuel Update (EIA)

    (short version) The U.S. average retail price for regular gasoline fell to $3.54 a gallon on Monday. That's down 6.6 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  2. Gasoline prices continue to fall (short version)

    Gasoline and Diesel Fuel Update (EIA)

    (short version) The U.S. average retail price for regular gasoline decreased for the second week in a row to $3.71 a gallon on Monday. That's down 4.9 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. This is Amerine Woodyard, with EIA, in Washington.

  3. Gasoline prices continue to fall (short version)

    Gasoline and Diesel Fuel Update (EIA)

    short version) The U.S. average retail price for regular gasoline fell to $3.70 a gallon on Monday. That's down 1.4 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. This is Amerine Woodyard, with EIA, in Washington.

  4. Gasoline prices continue to fall (short version)

    Gasoline and Diesel Fuel Update (EIA)

    short version) The U.S. average retail price for regular gasoline fell to $3.61 a gallon on Monday. That's down 3.7 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. This is Amerine Woodyard, with EIA, in Washington.

  5. Gasoline prices continue to fall (short version)

    Gasoline and Diesel Fuel Update (EIA)

    short version) The U.S. average retail price for regular gasoline fell to $3.52 a gallon on Monday. That's down 1.6 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  6. Gasoline distribution cycle and vapor emissions in Mexico City metropolitan area

    SciTech Connect (OSTI)

    Molina, M.M.; Secora, I.S.; Gallegos, J.R.M.; Grapain, V.M.G.; Villegas, F.M.R.; Flores, L.A.M.

    1997-12-31

    Ozone in the main air pollutant in Mexico City Metropolitan Area (MCMA). This kind of pollution is induced by the emissions of nitrogen oxides and hydrocarbons. According to Official Statistics National Air Pollution Quality Standard is exceeded over 300 days a year. Volatile hydrocarbons are generated in the cycle of storage transport and distribution of fuel (Gasoline Distribution Cycle). Above 17 millions of liters are handled daily in MCMA. Evaporative emission control is a complex task involving: floating roof tanks and vapor recovery units installation at bulk terminals and implementation of Phase 1 and Phase 2 vapor recovery systems at service stations. Since 1990, IMP has been involved in researching vapor emissions associated to gasoline storage and distribution cycle. Besides, the authors evaluate several technologies for bulk terminals and service stations. In this job, the authors present the results of an evaluation according to Mexican Official Standard of 500 vehicles. The gasoline vapors are trapped during refueling of cars and they are conduced to an equipment that includes an activated charcoal canister in order to adsorb them. Another Activated charcoal canister adsorbs ambient air as a reference. Experimental results showed that refueling hydrocarbon emissions are between 0.4 and 1.2 grams per liter with averages of 0.79 and 0.88 grams per liter according with two different gasoline types. These results were applied to Mexico City Vehicular fleet for the gasoline distribution cycle in order to obtain a total volatile hydrocarbon emission in Mexico City Metropolitan Area.

  7. U.S. gasoline consumption highest in 8 years

    Gasoline and Diesel Fuel Update (EIA)

    U.S. gasoline consumption highest in 8 years U.S. gasoline consumption this year is expected to be at the highest level since the record fuel demand seen back in 2007 as lower gasoline prices and more people finding jobs means more sales at the gasoline pump. In its new monthly forecast, the U.S. Energy Information Administration said gasoline consumption increased by 2.7% during the first eight months of 2015 and should rise by an average of 190,000 barrels per day this year to 9.1 million

  8. SELECTIVE NOx RECIRCULATION FOR STATIONARY LEAN-BURN NATURAL GAS ENGINES

    SciTech Connect (OSTI)

    Nigel Clark; Gregory Thompson; Richard Atkinson; Chamila Tissera; Matt Swartz; Emre Tatli; Ramprabhu Vellaisamy

    2005-01-01

    The research program conducted at the West Virginia University Engine and Emissions Research Laboratory (EERL) is working towards the verification and optimization of an approach to remove nitric oxides from the exhaust gas of lean burn natural gas engines. This project was sponsored by the US Department of Energy, National Energy Technology Laboratory (NETL) under contract number: DE-FC26-02NT41608. Selective NOx Recirculation (SNR) involves three main steps. First, NOx is adsorbed from the exhaust stream, followed by periodic desorption from the aftertreatment medium. Finally the desorbed NOx is passed back into the intake air stream and fed into the engine, where a percentage of the NOx is decomposed. This reporting period focuses on the NOx decomposition capability in the combustion process. Although researchers have demonstrated NOx reduction with SNR in other contexts, the proposed program is needed to further understand the process as it applies to lean burn natural gas engines. SNR is in support of the Department of Energy goal of enabling future use of environmentally acceptable reciprocating natural gas engines through NOx reduction under 0.1 g/bhp-hr. The study of decomposition of oxides of nitrogen (NOx) during combustion in the cylinder was conducted on a 1993 Cummins L10G 240 hp lean burn natural gas engine. The engine was operated at different air/fuel ratios, and at a speed of 800 rpm to mimic a larger bore engine. A full scale dilution tunnel and analyzers capable of measuring NOx, CO{sub 2}, CO, HC concentrations were used to characterize the exhaust gas. Commercially available nitric oxide (NO) was used to mimic the NOx stream from the desorption process through a mass flow controller and an injection nozzle. The same quantity of NOx was injected into the intake and exhaust line of the engine for 20 seconds at various steady state engine operating points. NOx decomposition rates were obtained by averaging the peak values at each set point minus the baseline and finding the ratio between the injected NO amounts. It was observed that the air/fuel ratio, injected NO quantity and engine operating points affected the NOx decomposition rates of the natural gas engine. A highest NOx decomposition rate of 27% was measured from this engine. A separate exploratory tests conducted with a gasoline engine with a low air/fuel ratio yielded results that suggested, that high NOx decomposition rates may be possible if a normally lean burn engine were operated at conditions closer to stoichiometric, with high exhaust gas recirculation (EGR) for a brief period of time during the NOx decomposition phase and with a wider range of air/fuel ratios. Chemical kinetic model predictions using CHEMKIN were performed to relate the experimental data with the established rate and equilibrium models. NOx decomposition rates from 35% to 42% were estimated using the CHEMKIN software. This provided insight on how to maximize NOx decomposition rates for a large bore engine. In the future, the modeling will be used to examine the effect of higher NO{sub 2}/NO ratios that are associated with lower speed and larger bore lean burn operation.

  9. Lean NOx Trap Regeneration Selectivity Towards N2O -- Similarities...

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

    Towards N2O -- Similarities and Differences Between H2, CO and C3H6 Reductants Lean NOx Trap Regeneration Selectivity Towards N2O -- Similarities and Differences Between H2,...

  10. McLean Electric Coop, Inc | Open Energy Information

    Open Energy Info (EERE)

    mcleanelectric.com Twitter: @McLeanElectric Facebook: https:www.facebook.commclean.electric.coop Outage Hotline: 1-800-263-4922 References: EIA Form EIA-861 Final Data File...

  11. Benchmark Reaction Mechanisms and Kinetics for Lean NOx Traps...

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

    and Peer Evaluation Meeting, May 18-22, 2009 -- Washington D.C. PDF icon acep01larson.pdf More Documents & Publications Development of Chemical Kinetic Models for Lean NOx ...

  12. Bioventing approach to remediate a gasoline contaminated subsurface. Book chapter

    SciTech Connect (OSTI)

    Kampbell, D.H.; Wilson, J.T.; Griffin, C.J.

    1992-01-01

    Bioventing is a subsurface process using an air stream to enhance biodegradation of oily contaminants. Two pilot-scale bioventing systems were installed at a field site. Process operations began in October 1990. The field site is located at an air station. A spill in 1969 of about 100,000 kilograms aviation gasoline was caused by a broken underground transfer line. A major portion of the spilled product still persists as an oily-phase residue in a 80x360 meter plume. The subsurface is a uniform beach sand with the ground water level near five meters. Prior to startup of the venting systems, a grass cover was established and a nutrient solution was dispersed throughout the unsaturated subsurface. Subsurface air flow patterns are being determined with a tracer gas of sulfur hexafloride. Soil gas, core material, and underground water are being monitored to determine the extent of remediation. Objectives of the study are to demonstrate that surface emissions of gasoline are minimal, oily residue will be reduced to <100 mg fuel carbon/Kg core material, and the process will be applicable to full-scale remediation. Flow rate is based on a calculated residence time of 24 hours. Surface emission of fuel hydrocarbons have not exceeded 1 micrograms/liter soil gas.

  13. Three-Dimensional Composite Nanostructures for Lean NOx Emission Control |

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

    Department of Energy 2 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting PDF icon ace030_gao_2012_o.pdf More Documents & Publications Monolithic Metal Oxide based Composite Nanowire Lean NOx Emission Control Catalysts Three-Dimensional Composite Nanostructures for Lean NOx Emission Control Vehicle Technologies Office Merit Review 2015: Metal Oxide Nano-Array Catalysts for Low Temperature Diesel Oxidation

  14. Detailed Kinetic Modeling of Gasoline Surrogate Mixtures

    SciTech Connect (OSTI)

    Mehl, M; Curran, H J; Pitz, W J; Westbrook, C K

    2009-03-09

    Real fuels are complex mixtures of thousands of hydrocarbon compounds including linear and branched paraffins, naphthenes, olefins and aromatics. It is generally agreed that their behavior can be effectively reproduced by simpler fuel surrogates containing a limited number of components. In this work, a recently revised version of the kinetic model by the authors is used to analyze the combustion behavior of several components relevant to gasoline surrogate formulation. Particular attention is devoted to linear and branched saturated hydrocarbons (PRF mixtures), olefins (1-hexene) and aromatics (toluene). Model predictions for pure components, binary mixtures and multi-component gasoline surrogates are compared with recent experimental information collected in rapid compression machine, shock tube and jet stirred reactors covering a wide range of conditions pertinent to internal combustion engines. Simulation results are discussed focusing attention on the mixing effects of the fuel components.

  15. CREATING THE NORTHEAST GASOLINE SUPPLY RESERVE

    Broader source: Energy.gov [DOE]

    In 2012, Superstorm Sandy made landfall in the northeastern United States and caused heavy damage to two refineries and left more than 40 terminals in New York Harbor closed due to water damage and loss of power. This left some New York gas stations without fuel for as long as 30 days. As part of the Obama Administration’s ongoing response to the storm, the Department of Energy created the first federal regional refined product reserve, the Northeast Gasoline Supply Reserve.

  16. Reformulated gasoline deal with Venezuela draws heat

    SciTech Connect (OSTI)

    Begley, R.

    1994-04-06

    A fight is brewing in Congress over a deal to let Venezuela off the hook in complying with the Clean Air Act reformulated gasoline rule. When Venezuela threatened to call for a GATT panel to challenge the rule as a trade barrier, the Clinton Administration negotiated to alter the rule, a deal that members of Congress are characterizing as {open_quotes}secret{close_quotes} and {open_quotes}back door.{close_quotes}

  17. Investigation of Aging Mechanisms in Lean NOx Traps

    SciTech Connect (OSTI)

    Mark Crocker

    2010-03-31

    Lean NO{sub x} traps (LNTs) represent a promising technology for the abatement of NO{sub x} under lean conditions. Although LNTs are starting to find commercial application, the issue of catalyst durability remains problematic. LNT susceptibility to sulfur poisoning is the single most important factor determining effective catalyst lifetime. The NO{sub x} storage element of the catalyst has a greater affinity for SO{sub 3} than it does for NO{sub 2}, and the resulting sulfate is more stable than the stored nitrate. Although this sulfate can be removed from the catalyst by means of high temperature treatment under rich conditions, the required conditions give rise to deactivation mechanisms such as precious metal sintering, total surface area loss, and solid state reactions between the various oxides present. The principle objective of this project was to improve understanding of the mechanisms of lean NO{sub x} trap aging, and to understand the effect of washcoat composition on catalyst aging characteristics. The approach utilized involved detailed characterization of model catalysts prior to and after aging, in tandem with measurement of catalyst performance in NO{sub x} storage and reduction. In this manner, NO{sub x} storage and reduction characteristics were correlated with the evolution of catalyst physico-chemical properties upon aging. Rather than using poorly characterized proprietary catalysts, or simple model catalysts of the Pt/BaO/Al{sub 2}O{sub 3} type (representing the first generation of LNTs), Pt/Rh/BaO/Al{sub 2}O{sub 3} catalysts were employed which also incorporated CeO{sub 2} or CeO{sub 2}-ZrO{sub 2}, representing a model system which more accurately reflects current LNT formulations. Catalysts were prepared in which the concentration of each of the main components was systematically varied: Pt (50, 75 or 100 g/ft{sup 3}), Rh (10 or 20 g/ft{sup 3}), BaO (15, 30 or 45 g/L), and either CeO{sub 2} (0, 50 or 100 g/L) or CeO{sub 2}-ZrO{sub 2} (0, 50 or 100 g/L). A high surface area La-stabilized alumina was used to support the BaO phase. Catalysts were obtained by washcoating onto standard cordierite substrates, the total washcoat loading being set at 260 g/L. La-stabilized alumina was used as the balance. Subsequent to de-greening, the NO{sub x} storage and reduction characteristics of the catalysts were evaluated on a bench reactor, after which the catalysts were aged on a bench reactor to the equivalent of ca. 75,000 miles of road aging using a published accelerated aging protocol. The aged catalysts were then subjected to the same evaluation proecdure used for the de-greened catalysts. In addition to the use of standard physico-chemical analytical techniques for studying the fresh and aged model catalysts, use was made of advanced analytical tools for characterizing their NO{sub x} storage/reduction and sulfation/desulfation characteristics, such as Spatially resolved capillary-inlet Mass Spectrometry (SpaciMS) and in situ Diffuse Reflectance Infrared Fourier Transform Spectroscopy (DRIFTS).

  18. High Efficiency Clean Combustion Engine Designs for Gasoline and Diesel

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

    Engines | Department of Energy Engine Designs for Gasoline and Diesel Engines High Efficiency Clean Combustion Engine Designs for Gasoline and Diesel Engines 2009 DOE Hydrogen Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting, May 18-22, 2009 -- Washington D.C. PDF icon ace_35_patton.pdf More Documents & Publications High Efficiency Clean Combustion Engine Designs for Gasoline and Diesel Engines Development of High-Efficiency Clean Combustion

  19. High Thermal Efficiency and Low Emissions with Supercritical Gasoline

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

    Injection-Ignition in a Light Duty Engine | Department of Energy High Thermal Efficiency and Low Emissions with Supercritical Gasoline Injection-Ignition in a Light Duty Engine High Thermal Efficiency and Low Emissions with Supercritical Gasoline Injection-Ignition in a Light Duty Engine A novel fuel injector has been developed and tested that addresses the technical challenges of LTC, HCCI, gasoline PPC, and RCCI by reducing complexity and cost. PDF icon p-16_zoldak.pdf More Documents &

  20. Application of Synergistic Technologies to Achieve High Levels of Gasoline

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

    Engine Downsizing | Department of Energy Synergistic Technologies to Achieve High Levels of Gasoline Engine Downsizing Application of Synergistic Technologies to Achieve High Levels of Gasoline Engine Downsizing Discussed technologies applied in highly downsized efficient gasoline engine concept such as multiple injection, advanced boosting, cooled exhaust gas recirculation, and electrical supercharger PDF icon deer11_boggs.pdf More Documents & Publications Meeting the CO2 Challenge DEER

  1. Vehicle Technologies Office Merit Review 2015: Low-Temperature Gasoline

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

    Combustion (LTGC) Engine Research | Department of Energy Low-Temperature Gasoline Combustion (LTGC) Engine Research Vehicle Technologies Office Merit Review 2015: Low-Temperature Gasoline Combustion (LTGC) Engine Research Presentation given by Sandia National Laboratories at 2015 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about low-temperature gasoline combustion engine research. PDF icon ace004_dec_2015_o.pdf More

  2. Characterization of Pre-Commercial Gasoline Engine Particulates Through

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

    Advanced Aerosol Methods | Department of Energy Pre-Commercial Gasoline Engine Particulates Through Advanced Aerosol Methods Characterization of Pre-Commercial Gasoline Engine Particulates Through Advanced Aerosol Methods Advanced aerosol analysis methods were used to examine particulates from single cylinder test engines running on gasoline and ethanol blends. PDF icon deer12_zelenyuk.pdf More Documents & Publications Fuel-Neutral Studies of Particulate Matter Transport Emissions

  3. Energy Department Announces First Regional Gasoline Reserve to Strengthen

    Office of Environmental Management (EM)

    Fuel Resiliency | Department of Energy First Regional Gasoline Reserve to Strengthen Fuel Resiliency Energy Department Announces First Regional Gasoline Reserve to Strengthen Fuel Resiliency May 2, 2014 - 10:29am Addthis News Media Contact 202-586-4940 WASHINGTON - As part of the Obama Administration's response to Superstorm Sandy, Energy Secretary Ernest Moniz today announced the creation of the first federal regional refined petroleum product reserve containing gasoline. Based on the

  4. Vehicle Technologies Office Merit Review 2014: Low-Temperature Gasoline

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

    Combustion (LTGC) Engine Research | Department of Energy Low-Temperature Gasoline Combustion (LTGC) Engine Research Vehicle Technologies Office Merit Review 2014: Low-Temperature Gasoline Combustion (LTGC) Engine Research Presentation given by Sandia National Laboratories at 2014 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about low-temperature gasoline combustion engine research. PDF icon ace004_dec_2014_o.pdf More

  5. High Efficiency Clean Combustion Engine Designs for Gasoline...

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

    High Efficiency Clean Combustion Engine Designs for Gasoline and Diesel Engines Development of High-Efficiency Clean Combustion Engines Designs for SI and CI Engines Expanding ...

  6. Low-Temperature Gasoline Combustion (LTGC) Engine Research

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

    ... adjacent to the cylinder-wall from temperature-map images. September 2013 ... 2013 Determine effects of intake temperature, gasoline direct injection (GDI) timing ...

  7. Motor Gasoline Market Spring 2007 and Implications for Spring...

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

    began to decline, and with the transition from methyl tertiary butyl ether (MTBE) to ethanol completed and the end of the summer driving season drawing near, gasoline prices...

  8. Geographic Area Month Aviation Gasoline Kerosene-Type Jet Fuel

    U.S. Energy Information Administration (EIA) Indexed Site

    District and State (Cents per Gallon Excluding Taxes) - Continued Geographic Area Month Aviation Gasoline Kerosene-Type Jet Fuel Kerosene Sales to End Users Sales for Resale...

  9. Petroleum Products Table 43. Refiner Motor Gasoline Volumes...

    U.S. Energy Information Administration (EIA) Indexed Site

    of table. 43. Refiner Motor Gasoline Volumes by Grade, Sales Type, PAD District, and State 262 Energy Information Administration Petroleum Marketing Annual 1997 Table 43....

  10. Petroleum Products Table 43. Refiner Motor Gasoline Volumes...

    U.S. Energy Information Administration (EIA) Indexed Site

    1995 Table 43. Refiner Motor Gasoline Volumes by Grade, Sales Type, PAD District, and State (Thousand Gallons per Day) - Continued Geographic Area Month Premium All Grades Sales...

  11. Petroleum Products Table 43. Refiner Motor Gasoline Volumes...

    U.S. Energy Information Administration (EIA) Indexed Site

    2000 Table 43. Refiner Motor Gasoline Volumes by Grade, Sales Type, PAD District, and State (Thousand Gallons per Day) - Continued Geographic Area Month Premium All Grades Sales...

  12. Petroleum Products Table 31. Motor Gasoline Prices by Grade...

    U.S. Energy Information Administration (EIA) Indexed Site

    Annual 1995 Table 31. Motor Gasoline Prices by Grade, Sales Type, PAD District, and State (Cents per Gallon Excluding Taxes) - Continued Geographic Area Month Premium All...

  13. Petroleum Products Table 31. Motor Gasoline Prices by Grade...

    U.S. Energy Information Administration (EIA) Indexed Site

    Annual 2000 Table 31. Motor Gasoline Prices by Grade, Sales Type, PAD District, and State (Cents per Gallon Excluding Taxes) - Continued Geographic Area Month Premium All...

  14. Petroleum Products Table 43. Refiner Motor Gasoline Volumes...

    U.S. Energy Information Administration (EIA) Indexed Site

    of table. 43. Refiner Motor Gasoline Volumes by Grade, Sales Type, PAD District, and State 262 Energy Information Administration Petroleum Marketing Annual 1996 Table 43....

  15. Petroleum Products Table 31. Motor Gasoline Prices by Grade...

    U.S. Energy Information Administration (EIA) Indexed Site

    at end of table. 31. Motor Gasoline Prices by Grade, Sales Type, PAD District, and State 56 Energy Information Administration Petroleum Marketing Annual 1996 Table 31. Motor...

  16. Table 34. Reformulated Motor Gasoline Prices by Grade, Sales...

    U.S. Energy Information Administration (EIA) Indexed Site

    Information AdministrationPetroleum Marketing Annual 1999 Table 34. Reformulated Motor Gasoline Prices by Grade, Sales Type, PAD District, and Selected States (Cents per...

  17. Table 35. Refiner Motor Gasoline Prices by Grade, Sales Type...

    U.S. Energy Information Administration (EIA) Indexed Site

    Energy Information Administration Petroleum Marketing Annual 1995 Table 35. Refiner Motor Gasoline Prices by Grade, Sales Type, PAD District, and State (Cents per Gallon...

  18. Table 44. Refiner Motor Gasoline Volumes by Formulation, Sales...

    U.S. Energy Information Administration (EIA) Indexed Site

    250 Energy Information AdministrationPetroleum Marketing Annual 1999 Table 44. Refiner Motor Gasoline Volumes by Formulation, Sales Type, PAD District, and State (Thousand Gallons...

  19. Table 32. Conventional Motor Gasoline Prices by Grade, Sales...

    U.S. Energy Information Administration (EIA) Indexed Site

    Information Administration Petroleum Marketing Annual 1995 Table 32. Conventional Motor Gasoline Prices by Grade, Sales Type, PAD District, and State (Cents per Gallon...

  20. Table 44. Refiner Motor Gasoline Volumes by Formulation, Sales...

    U.S. Energy Information Administration (EIA) Indexed Site

    Energy Information Administration Petroleum Marketing Annual 1995 Table 44. Refiner Motor Gasoline Volumes by Formulation, Sales Type, PAD District, and State (Thousand Gallons...

  1. Table 48. Prime Supplier Sales Volumes of Motor Gasoline by...

    U.S. Energy Information Administration (EIA) Indexed Site

    Petroleum Marketing Annual 1998 Table 48. Prime Supplier Sales Volumes of Motor Gasoline by Grade, Formulation, PAD District, and State (Thousand Gallons per Day) -...

  2. Table 35. Refiner Motor Gasoline Prices by Grade, Sales Type...

    U.S. Energy Information Administration (EIA) Indexed Site

    134 Energy Information AdministrationPetroleum Marketing Annual 1998 Table 35. Refiner Motor Gasoline Prices by Grade, Sales Type, PAD District, and State (Cents per Gallon...

  3. Table 35. Refiner Motor Gasoline Prices by Grade, Sales Type...

    U.S. Energy Information Administration (EIA) Indexed Site

    134 Energy Information AdministrationPetroleum Marketing Annual 1999 Table 35. Refiner Motor Gasoline Prices by Grade, Sales Type, PAD District, and State (Cents per Gallon...

  4. Table 43. Refiner Motor Gasoline Volumes by Grade, Sales Type...

    U.S. Energy Information Administration (EIA) Indexed Site

    220 Energy Information AdministrationPetroleum Marketing Annual 1998 Table 43. Refiner Motor Gasoline Volumes by Grade, Sales Type, PAD District, and State (Thousand Gallons per...

  5. Table 33. Oxygenated Motor Gasoline Prices by Grade, Sales Type...

    U.S. Energy Information Administration (EIA) Indexed Site

    - - - - - - - - - - - - See footnotes at end of table. 33. Oxygenated Motor Gasoline Prices by Grade, Sales Type, PAD District, and State 116 Energy Information...

  6. Table 44. Refiner Motor Gasoline Volumes by Formulation, Sales...

    U.S. Energy Information Administration (EIA) Indexed Site

    - - - - W W - - - - - - See footnotes at end of table. 44. Refiner Motor Gasoline Volumes by Formulation, Sales Type, PAD District, and State 292 Energy...

  7. Table 48. Prime Supplier Sales Volumes of Motor Gasoline by...

    U.S. Energy Information Administration (EIA) Indexed Site

    Petroleum Marketing Annual 1999 Table 48. Prime Supplier Sales Volumes of Motor Gasoline by Grade, Formulation, PAD District, and State (Thousand Gallons per Day) -...

  8. Table 34. Reformulated Motor Gasoline Prices by Grade, Sales...

    U.S. Energy Information Administration (EIA) Indexed Site

    Information AdministrationPetroleum Marketing Annual 1998 Table 34. Reformulated Motor Gasoline Prices by Grade, Sales Type, PAD District, and Selected States (Cents per...

  9. Table 32. Conventional Motor Gasoline Prices by Grade, Sales...

    U.S. Energy Information Administration (EIA) Indexed Site

    - - - - W W - - - - - - See footnotes at end of table. 32. Conventional Motor Gasoline Prices by Grade, Sales Type, PAD District, and State 86 Energy Information...

  10. Table 48. Prime Supplier Sales Volumes of Motor Gasoline by...

    U.S. Energy Information Administration (EIA) Indexed Site

    Petroleum Marketing Annual 1995 Table 48. Prime Supplier Sales Volumes of Motor Gasoline by Grade, Formulation, PAD District, and State (Thousand Gallons per Day) -...

  11. Table 32. Conventional Motor Gasoline Prices by Grade, Sales...

    U.S. Energy Information Administration (EIA) Indexed Site

    - - - - 64.7 64.7 - - - - - - See footnotes at end of table. 32. Conventional Motor Gasoline Prices by Grade, Sales Type, PAD District, and State 86 Energy Information...

  12. Table 44. Refiner Motor Gasoline Volumes by Formulation, Sales...

    U.S. Energy Information Administration (EIA) Indexed Site

    250 Energy Information AdministrationPetroleum Marketing Annual 1998 Table 44. Refiner Motor Gasoline Volumes by Formulation, Sales Type, PAD District, and State (Thousand Gallons...

  13. Table 43. Refiner Motor Gasoline Volumes by Grade, Sales Type...

    U.S. Energy Information Administration (EIA) Indexed Site

    220 Energy Information AdministrationPetroleum Marketing Annual 1999 Table 43. Refiner Motor Gasoline Volumes by Grade, Sales Type, PAD District, and State (Thousand Gallons per...

  14. Table 34. Reformulated Motor Gasoline Prices by Grade, Sales...

    U.S. Energy Information Administration (EIA) Indexed Site

    Information Administration Petroleum Marketing Annual 1995 Table 34. Reformulated Motor Gasoline Prices by Grade, Sales Type, PAD District, and State (Cents per Gallon...

  15. Table 43. Refiner Motor Gasoline Volumes by Grade, Sales Type...

    U.S. Energy Information Administration (EIA) Indexed Site

    Energy Information Administration Petroleum Marketing Annual 1995 Table 43. Refiner Motor Gasoline Volumes by Grade, Sales Type, PAD District, and State (Thousand Gallons per...

  16. Table 32. Conventional Motor Gasoline Prices by Grade, Sales...

    U.S. Energy Information Administration (EIA) Indexed Site

    Information AdministrationPetroleum Marketing Annual 1998 Table 32. Conventional Motor Gasoline Prices by Grade, Sales Type, PAD District, and State (Cents per Gallon...

  17. Table 33. Oxygenated Motor Gasoline Prices by Grade, Sales Type...

    U.S. Energy Information Administration (EIA) Indexed Site

    Information Administration Petroleum Marketing Annual 1995 Table 33. Oxygenated Motor Gasoline Prices by Grade, Sales Type, PAD District, and State (Cents per Gallon...

  18. Reformulated Gasoline Use Under the 8-Hour Ozone Rule

    Reports and Publications (EIA)

    2002-01-01

    This paper focuses on the impact on gasoline price and supply when additional ozone non-attainment areas come under the new 8-hour ozone standard.

  19. Thermal Deactivation Mechanisms of Fully-Formed Lean NOx Trap Catalysts

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

    Aged by Lean/Rich Cycling | Department of Energy Deactivation Mechanisms of Fully-Formed Lean NOx Trap Catalysts Aged by Lean/Rich Cycling Thermal Deactivation Mechanisms of Fully-Formed Lean NOx Trap Catalysts Aged by Lean/Rich Cycling Catalysts in fully formulated lean NOx traps are aged and evaluated in a bench-flow reactor using simulated diesel engine exhaust. PDF icon deer08_toops.pdf More Documents & Publications APBF-DEC Heavy Duty NOx Adsorber/DPF Project: Heavy Duty Linehaul

  20. Gasoline prices inch down slightly (long version)

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

    long version) The U.S. average retail price for regular gasoline fell slightly to $3.54 a gallon on Monday. That's down 6-tenths of a penny from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Pump prices were highest in the West Coast region at 3.84 a gallon, down 5.2 cents from a week ago. Prices were lowest in the Gulf Coast States at 3.32 a gallon, down 3.9 cents.

  1. Gasoline prices show sharp increase (long version)

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

    long version) The U.S. average retail price for regular gasoline saw its sharpest increase this year at $3.54 a gallon on Monday. That's up 18.1 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Pump prices were highest in the West Coast region at 3.74 a gallon, up 19.3 cents from a week ago. Prices were lowest in the Rocky Mountain States at 3.14 a gallon, up 16.3 cents.

  2. Gasoline prices up this week (long version)

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

    long version) The U.S. average retail price for regular gasoline rose to $3.61 a gallon on Monday. That's up 7.3 cents from a week ago and up 25.4 cents from two weeks ago, based on the weekly price survey by the U.S. Energy Information Administration. Pump prices were highest in the West Coast region at 3.87 a gallon, up almost 13 cents from a week ago. Prices were lowest in the Rocky Mountain States at 3.27 a gallon, up 13 cents.

  3. Gasoline prices up this week (long version)

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

    long version) The U.S. average retail price for regular gasoline rose to $3.75 a gallon on Monday. That's up almost 14 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Pump prices were highest in the West Coast region at 3.97 a gallon, up almost 11 cents from a week ago. Prices were lowest in the Rocky Mountain States at 3.41 a gallon, up 13.5 cents.

  4. Gasoline price shows small increase (long version)

    Gasoline and Diesel Fuel Update (EIA)

    long version) The U.S. average retail price for regular gasoline showed little movement from last week. Prices rose 4/10 of a cent to $3.30 a gallon on Monday, based on the weekly price survey by the U.S. Energy Information Administration. Pump prices were highest in the New England States, at 3.52 a gallon, down 1/10 of a penny from a week ago. Prices were lowest at 2.87 a gallon in the Rocky Mountain States, with the biggest regional price drop at close to 7 cents.

  5. Gasoline price up this week (long version)

    Gasoline and Diesel Fuel Update (EIA)

    up this week (long version) The U.S. average retail price for regular gasoline rose to $3.32 a gallon on Monday. That's up 1.2 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. For the first time since early December pump prices were highest in the West Coast at 3.50 a gallon, up 1.2 cents from a week ago. For the fourth week in a row, prices were lowest in the Rocky Mountain States at 2.88 a gallon, up 1.3 cents.

  6. Gasoline price up this week (long version)

    Gasoline and Diesel Fuel Update (EIA)

    long version) The U.S. average retail price for regular gasoline rose to $3.36 a gallon on Monday. That's up 4.2 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. For the second week in a row, pump prices were highest in the West Coast at 3.55 a gallon, up 4.2 cents from a week ago. Prices were lowest in the Rocky Mountain States at 2.98 a gallon, up 10.1 cents marking the greatest regional increase this week.

  7. Gasoline prices continue to decrease (long version)

    Gasoline and Diesel Fuel Update (EIA)

    (long version) The U.S. average retail price for regular gasoline fell to $3.65 a gallon on Monday. That's down 3 1/2 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Pump prices were highest in the West Coast region at 3.95 a gallon, down 1.7 cents from a week ago. Prices were lowest in the Gulf Coast States at 3.48 a gallon, down 2.5 cents. This is Amerine Woodyard, with EIA, in Washington.

  8. Gasoline prices continue to decrease (long version)

    Gasoline and Diesel Fuel Update (EIA)

    long version) The U.S. average retail price for regular gasoline fell to $3.50 a gallon on Monday. That's down 8.1 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Pump prices were highest in the West Coast region at 3.89 a gallon, down 5.6 cents from a week ago. Prices were lowest in the Gulf Coast States at 3.31 a gallon, down 6 1/2 cents.

  9. Gasoline prices continue to fall (long version)

    Gasoline and Diesel Fuel Update (EIA)

    (long version) The U.S. average retail price for regular gasoline fell to $3.54 a gallon on Monday. That's down 6.6 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Pump prices were highest in the West Coast region at 3.89 a gallon, down 4 cents from a week ago. Prices were lowest in the Gulf Coast States at 3.36 a gallon, down 7.1 cents.

  10. Gasoline prices continue to fall (long version)

    Gasoline and Diesel Fuel Update (EIA)

    long version) The U.S. average retail price for regular gasoline fell to $3.52 a gallon on Monday. That's down 1.6 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Pump prices were highest in the West Coast region at 3.80 a gallon, down 3.6 cents from a week ago. Prices were lowest in the Gulf Coast States at 3.30 a gallon, down 2.9 cents.

  11. Vehicle Technologies Office: 2013 Advanced Combustion R&D Annual...

    Energy Savers [EERE]

    of Advanced Combustion Engines Vehicle Technologies Office: 2012 Advanced Combustion R&D Annual Progress Report Lean Gasoline System Development for Fuel Efficient Small Car...

  12. Hydrogen Vehicle and Infrastructure Demonstration and Validation...

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

    Technologies Office Merit Review 2014: Accelerating Alternatives for Minnesota Drivers Lean Gasoline System Development for Fuel Efficient Small Car HYDROGEN TO THE HIGHWAYS...

  13. Lean-Burn Stationary Natural Gas Reciprocating Engine Operation with a Prototype Miniature Diode Side Pumped Passively Q-switched Laser Spark Plug

    SciTech Connect (OSTI)

    McIntyre, D.L.; Woodruff, S.D.; McMillian, M.H.; Richardson, S.W.; Gautam, Mridul

    2008-04-01

    To meet the ignition system needs of large bore lean burn stationary natural gas engines a laser diode side pumped passively Q-switched laser igniter was developed and used to ignite lean mixtures in a single cylinder research engine. The laser design was produced from previous work. The in-cylinder conditions and exhaust emissions produced by the miniaturized laser were compared to that produced by a laboratory scale commercial laser system used in prior engine testing. The miniaturized laser design as well as the combustion and emissions data for both laser systems was compared and discussed. It was determined that the two laser systems produced virtually identical combustion and emissions data.

  14. A Case Study of Lean Implementation at Sandia National Laboratories.

    Office of Scientific and Technical Information (OSTI)

    (Conference) | SciTech Connect A Case Study of Lean Implementation at Sandia National Laboratories. Citation Details In-Document Search Title: A Case Study of Lean Implementation at Sandia National Laboratories. Abstract not provided. Authors: de Luna, Raul ; Lopez, Mike R. ; Wan, Hung-da ; Chen, Frank F. Publication Date: 2013-02-01 OSTI Identifier: 1116099 Report Number(s): SAND2013-0908C 480106 DOE Contract Number: AC04-94AL85000 Resource Type: Conference Resource Relation: Conference:

  15. Modeling the Regeneration Chemistry of Lean NOx Traps | Department of

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

    Energy the Regeneration Chemistry of Lean NOx Traps Modeling the Regeneration Chemistry of Lean NOx Traps Presentation given at DEER 2006, August 20-24, 2006, Detroit, Michigan. Sponsored by the U.S. DOE's EERE FreedomCar and Fuel Partnership and 21st Century Truck Programs. PDF icon 2006_deer_larson.pdf More Documents & Publications Kinetic and Performance Studies of the Regeneration Phase of Model Pt/Rh/Ba NOx Traps for Design and Optimization Production, Storage, and FC Analysis

  16. SULI Intern: Gasoline Compression Ignition | Argonne National Laboratory

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

    Gasoline Compression Ignition Share Argonne intern Kendyl Partridge from Mississippi State University worked with Argonne mentor Steve Ciatti in studying gasoline compression ignition engines. This research will help engineers increase an engine's efficiency while reducing its environmental impact. Browse By - Any - Energy -Energy efficiency --Vehicles ---Alternative fuels ---Automotive engineering ---Diesel ---Electric drive technology ---Hybrid & electric vehicles ---Hydrogen & fuel

  17. Demand, Supply, and Price Outlook for Reformulated Motor Gasoline 1995

    Reports and Publications (EIA)

    1994-01-01

    Provisions of the Clean Air Act Amendments of 1990 designed to reduce ground-level ozone will increase the demand for reformulated motor gasoline in a number of U.S. metropolitan areas. This article discusses the effects of the new regulations on the motor gasoline market and the refining industry.

  18. U.S. Gasoline Price Continues to Increase (Short version)

    Gasoline and Diesel Fuel Update (EIA)

    Gasoline Price Continues to Increase (Short version) The U.S. average retail price for regular gasoline rose to $2.27 a gallon on Monday. That's up 8.3 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  19. U.S. Gasoline prices continue increase (short version)

    Gasoline and Diesel Fuel Update (EIA)

    Gasoline prices continue to increase (short version) The U.S. average retail price for regular gasoline rose to $3.69 a gallon on Monday. That's up 1.6 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  20. U.S. gasoline continue to increase (short version)

    Gasoline and Diesel Fuel Update (EIA)

    U.S. gasoline continue to increase (short version) The U.S. average retail price for regular gasoline rose to $3.33 a gallon on Monday. That's up 1- tenth of a penny from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  1. U.S. gasoline continue to increase (short version)

    Gasoline and Diesel Fuel Update (EIA)

    U.S. gasoline continue to increase (short version) The U.S. average retail price for regular gasoline rose to $3.33 a gallon on Monday. That's up 6 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  2. U.S. gasoline price continue to decrease (short version)

    Gasoline and Diesel Fuel Update (EIA)

    gasoline price continue to decrease (short version) The U.S. average retail price for regular gasoline fell to $2.75 a gallon on Monday. That's down 5.7 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. This is Amerine Woodyard, with EIA, in Washington.

  3. U.S. gasoline price continue to decrease (short version)

    Gasoline and Diesel Fuel Update (EIA)

    Gasoline Price Increases (short version) The U.S. average retail price for regular gasoline rose to $2.72 a gallon on Monday. That's up 8.7 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  4. U.S. gasoline price continues to decrease (short version)

    Gasoline and Diesel Fuel Update (EIA)

    gasoline price continues to decrease (short version) The U.S. average retail price for regular gasoline fell to $2.79 a gallon on Monday. That's down 8-tenths of a penny from a week ago, based on the weekly price survey by the U.S. Energy Information Administration

  5. U.S. gasoline price continues to decrease (short version)

    Gasoline and Diesel Fuel Update (EIA)

    5, 2015 U.S. gasoline price continue to decrease (short version) The U.S. average retail price for regular gasoline fell to $2.32 a gallon on Monday. That's down 4-tenths of a penny from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. This is Amerine Woodydard

  6. U.S. gasoline price continues to increase (short version)

    Gasoline and Diesel Fuel Update (EIA)

    gasoline price continues to increase (short version) The U.S. average retail price for regular gasoline rose to $2.19 a gallon on Monday. That's up 12.3 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  7. U.S. gasoline price continues to increase (short version)

    Gasoline and Diesel Fuel Update (EIA)

    gasoline price continues to increase (short version) The U.S. average retail price for regular gasoline rose to $2.33 a gallon on Monday. That's up 5.8 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  8. U.S. gasoline price continues to increase (short version)

    Gasoline and Diesel Fuel Update (EIA)

    gasoline price continues to increase (short version) The U.S. average retail price for regular gasoline rose to $2.47 a gallon on Monday. That's up 14.1 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  9. U.S. gasoline price decrease (short version)

    Gasoline and Diesel Fuel Update (EIA)

    gasoline price decrease (short version) The U.S. average retail price for regular gasoline dropped to $2.80 a gallon on Monday. That's down 3.2 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration

  10. U.S. gasoline price increases (short version)

    Gasoline and Diesel Fuel Update (EIA)

    gasoline price increases (short version) The U.S. average retail price for regular gasoline rose to $2.83 a gallon on Monday. That's up 4.1 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration

  11. U.S. gasoline price increases this week (short version)

    Gasoline and Diesel Fuel Update (EIA)

    gasoline price increases this week (short version) The U.S. average retail price for regular gasoline rose to $2.46 a gallon on Monday. That's up 4 tenths of a penny from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  12. U.S. gasoline prices continue to decrease (short version)

    Gasoline and Diesel Fuel Update (EIA)

    gasoline prices continue to decrease (short version) The U.S. average retail price for regular gasoline fell to $2.82 a gallon on Monday. That's down 7.3 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  13. U.S. gasoline prices continue to decrease (short version)

    Gasoline and Diesel Fuel Update (EIA)

    gasoline prices continue to decrease (short version) The U.S. average retail price for regular gasoline fell to $2.78 a gallon on Monday. That's down 4.3 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration

  14. U.S. gasoline prices continue to decrease (short version)

    Gasoline and Diesel Fuel Update (EIA)

    gasoline prices continue to decrease (short version) The U.S. average retail price for regular gasoline fell to $3.45 a gallon on Monday. That's down 1.8 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration

  15. U.S. gasoline prices continue to increase (short version)

    Gasoline and Diesel Fuel Update (EIA)

    gasoline prices continue to increase (short version) The U.S. average retail price for regular gasoline rose to $2.49 a gallon on Monday. That's up 1.4 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  16. U.S. gasoline prices continue to increase (short version)

    Gasoline and Diesel Fuel Update (EIA)

    gasoline prices continue to increase (short version) The U.S. average retail price for regular gasoline rose to $2.69 a gallon on Monday. That's up 2.7 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration

  17. U.S. gasoline prices continue to increase (short version)

    Gasoline and Diesel Fuel Update (EIA)

    gasoline prices continue to increase (short version) The U.S. average retail price for regular gasoline rose to $2.74 a gallon on Monday. That's up 5.3 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  18. U.S. gasoline prices continue to increase (short version)

    Gasoline and Diesel Fuel Update (EIA)

    gasoline prices continue to increase (short version) The U.S. average retail price for regular gasoline rose to $2.77 a gallon on Memorial Day Monday. That's up 3 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration

  19. U.S. gasoline prices continue to increase (short version)

    Gasoline and Diesel Fuel Update (EIA)

    gasoline prices continue to increase (short version) The U.S. average retail price for regular gasoline rose to $2.78 a gallon on Monday. That's up 6- tenths of a penny from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  20. U.S. gasoline prices continued to decreased (short version)

    Gasoline and Diesel Fuel Update (EIA)

    U.S. gasoline prices continued to decreased (short version) The U.S. average retail price for regular gasoline fell to $3.24 a gallon on Monday. That's down 3 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration

  1. U.S. gasoline prices decrease (Short version)

    Gasoline and Diesel Fuel Update (EIA)

    6, 2015 U.S. gasoline prices decrease (Short version) The U.S. average retail price for regular gasoline fell to $2.41 a gallon on Monday. That's down 3 ½ cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  2. U.S. gasoline prices decrease (short version)

    Gasoline and Diesel Fuel Update (EIA)

    6, 2014 U.S. gasoline prices decrease (short version) The U.S. average retail price for regular gasoline fell to $3.30 a gallon on Monday. That's down a nickel and a half from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. This is Amerine Woodyard

  3. U.S. gasoline prices decrease (short version)

    Gasoline and Diesel Fuel Update (EIA)

    14, 2014 U.S. gasoline prices decrease (short version) The U.S. average retail price for regular gasoline fell to its lowest level of the year at $3.21 a gallon on Monday. That's down 9.2 cents from a week ago, based on the weekly price survey by the

  4. U.S. gasoline prices decrease (short version)

    Gasoline and Diesel Fuel Update (EIA)

    gasoline prices decrease (short version) The U.S. average retail price for regular gasoline fell to $3.64 a gallon on Monday. That's down 4.3 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  5. U.S. gasoline prices remain steady (short version)

    Gasoline and Diesel Fuel Update (EIA)

    gasoline prices remain steady (short version) The U.S. average retail price for regular gasoline remained unchanged this week at $2.78 a gallon on Monday, based on the weekly price survey by the U.S. Energy Information Administration

  6. U.S. gasoline prices unchanged (short version)

    Gasoline and Diesel Fuel Update (EIA)

    gasoline prices unchanged (short version) The U.S. average retail price for regular gasoline showed no movement from last week. The average price remained flat at $3.70 a gallon on Monday, based on the weekly price survey by the U.S. Energy Information Administration. This

  7. U.S. gasoline prices unchanged (short version)

    Gasoline and Diesel Fuel Update (EIA)

    gasoline prices decrease (short version) The U.S. average retail price for regular gasoline fell to $3.68 a gallon on Monday. That's down 2.6 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. This is Amerine Woodyard, with EIA, in Washington

  8. Gasoline Ultra Fuel Efficient Vehicle | Department of Energy

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

    2 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting PDF icon ace064_confer_2012_o.pdf More Documents & Publications Gasoline Ultra Fuel Efficient Vehicle Program Update Gasoline Ultra Fuel Efficient Vehicle

  9. Gasoline Ultra Fuel Efficient Vehicle | Department of Energy

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

    1 DOE Hydrogen and Fuel Cells Program, and Vehicle Technologies Program Annual Merit Review and Peer Evaluation PDF icon ace064_confer_2011_o.pdf More Documents & Publications Gasoline Ultra Fuel Efficient Vehicle Gasoline Ultra Fuel Efficient Vehicle Program Update

  10. DOE's Gasoline/Diesel PM Split Study | Department of Energy

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

    5 Diesel Engine Emissions Reduction (DEER) Conference Presentations and Posters PDF icon 2005_deer_fujita.pdf More Documents & Publications DOE's Gasoline/Diesel PM Split Study DOE's Gasoline/Diesel PM Split Study Weekend/Weekday Ozone Study in the South Coast Air Basin

  11. DOE's Gasoline/Diesel PM Split Study | Department of Energy

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

    4 Diesel Engine Emissions Reduction (DEER) Conference Presentation: National Renewable Energy Laboratory PDF icon 2004_deer_lawson.pdf More Documents & Publications DOE's Gasoline/Diesel PM Split Study DOE's Gasoline/Diesel PM Split Study Collaborative Lubricating Oil Study on Emissions (CLOSE) Project

  12. NH3 generation over commercial Three-Way Catalysts and Lean-NOx...

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

    generation over commercial Three-Way Catalysts and Lean-NOx Traps NH3 generation over commercial Three-Way Catalysts and Lean-NOx Traps Research to identify most promising...

  13. Intra-catalyst Reductant Chemistry in Lean NOx Traps: A Study...

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

    Intra-catalyst Reductant Chemistry in Lean NOx Traps: A Study on Sulfur Effects Intra-catalyst Reductant Chemistry in Lean NOx Traps: A Study on Sulfur Effects Presentation given ...

  14. Combining Low-Temperature Combustion with Lean-NOx Trap Yields...

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

    Low-Temperature Combustion with Lean-NOx Trap Yields Progress Toward Targets of Efficient ... Intra-catalyst Reductant Chemistry in Lean NOx Traps: A Study on Sulfur Effects Reductant ...

  15. 5 Hz Catalytic Emissions FT-IR Monitoring during Lean-Rich Engine...

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

    Hz Catalytic Emissions FT-IR Monitoring during Lean-Rich Engine Cycles: Comparison to Reference Methods 5 Hz Catalytic Emissions FT-IR Monitoring during Lean-Rich Engine Cycles: ...

  16. McLean County, North Dakota: Energy Resources | Open Energy Informatio...

    Open Energy Info (EERE)

    Dakota Mercer, North Dakota North Central McLean, North Dakota Riverdale, North Dakota Ruso, North Dakota South McLean, North Dakota Turtle Lake, North Dakota Underwood, North...

  17. Assessment of Summer 1997 motor gasoline price increase

    SciTech Connect (OSTI)

    1998-05-01

    Gasoline markets in 1996 and 1997 provided several spectacular examples of petroleum market dynamics. The first occurred in spring 1996, when tight markets, following a long winter of high demand, resulted in rising crude oil prices just when gasoline prices exhibit their normal spring rise ahead of the summer driving season. Rising crude oil prices again pushed gasoline prices up at the end of 1996, but a warm winter and growing supplies weakened world crude oil markets, pushing down crude oil and gasoline prices during spring 1997. The 1996 and 1997 spring markets provided good examples of how crude oil prices can move gasoline prices both up and down, regardless of the state of the gasoline market in the United States. Both of these spring events were covered in prior Energy Information Administration (EIA) reports. As the summer of 1997 was coming to a close, consumers experienced yet another surge in gasoline prices. Unlike the previous increase in spring 1996, crude oil was not a factor. The late summer 1997 price increase was brought about by the supply/demand fundamentals in the gasoline markets, rather than the crude oil markets. The nature of the summer 1997 gasoline price increase raised questions regarding production and imports. Given very strong demand in July and August, the seemingly limited supply response required examination. In addition, the price increase that occurred on the West Coast during late summer exhibited behavior different than the increase east of the Rocky Mountains. Thus, the Petroleum Administration for Defense District (PADD) 5 region needed additional analysis (Appendix A). This report is a study of this late summer gasoline market and some of the important issues surrounding that event.

  18. Investigation of Aging Mechanisms in Lean NOx Traps | Department of Energy

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

    Aging Mechanisms in Lean NOx Traps Investigation of Aging Mechanisms in Lean NOx Traps 2009 DOE Hydrogen Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting, May 18-22, 2009 -- Washington D.C. PDF icon ace_26_crocker.pdf More Documents & Publications Pt-free, Perovskite-based Lean NOx Trap Catalysts CLEERS Coordination & Development of Catalyst Process Kinetic Data Lean NOx Reduction with Dual Layer LNT/SCR Catalysts

  19. Synergies of High-Efficiency Clean Combustion and Lean NOx Trap Catalysts |

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

    Department of Energy Synergies of High-Efficiency Clean Combustion and Lean NOx Trap Catalysts Synergies of High-Efficiency Clean Combustion and Lean NOx Trap Catalysts investigation of potential synergies of low emission advanced combustion techniques and advanced lean exhaust catalytic aftertreatment. PDF icon deer08_parks.pdf More Documents & Publications Measurement and Characterization of Lean NOx Adsorber Regeneration and Desulfation and Controlling NOx from Multi-mode High

  20. The hybrid rich-burn/lean burn engine. Part 2

    SciTech Connect (OSTI)

    Smith, J.A.; Podnar, D.; Meyers, D.P.

    1996-12-31

    Southwest Research Institute (SwRI) has developed a unique engine technology called Hybrid Rich-Burn/Lean-Burn (HRBLB) that capitalizes on the low production of oxides of nitrogen (NO{sub x}) during extremely rich and lean combustion. The HRBLB concept is predicated on simultaneous combustion of extremely rich and lean natural gas-air mixtures in separate cylinders. Rich exhaust products undergo a catalytic water-gas shift reaction to form an intermediate combustible fuel composed of carbon monoxide, water vapor, hydrogen, and carbon dioxide. All of the intermediate fuel is added to lean natural gas-air mixtures in other cylinders to enhance ignitability that would otherwise result in misfire. This paper presents results obtained during the development of a stationary, turbocharged, and intercooled, 18-liter HRBLB engine. Results show that NO{sub x} can be reduced by a factor of 2.5 to 3.5 relative to stock engine emissions at equivalent efficiency. The HRBLB engine has demonstrated corrected NO{sub x} (15% O{sub 2}) levels of 23 ppm at rated load with thermal efficiencies of 35%.

  1. Savannah River Site hosts regional Lean Alliance event | National Nuclear

    National Nuclear Security Administration (NNSA)

    Security Administration regional Lean Alliance event | National Nuclear Security Administration Facebook Twitter Youtube Flickr RSS People Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure Countering Nuclear Terrorism About Our Programs Our History Who We Are Our Leadership Our Locations Budget Our Operations Library Bios Congressional Testimony Fact Sheets Newsletters Press Releases Photo Gallery Jobs Apply

  2. GASOLINE VEHICLE EXHAUST PARTICLE SAMPLING STUDY

    SciTech Connect (OSTI)

    Kittelson, D; Watts, W; Johnson, J; Zarling, D Schauer,J Kasper, K; Baltensperger, U; Burtscher, H

    2003-08-24

    The University of Minnesota collaborated with the Paul Scherrer Institute, the University of Wisconsin (UWI) and Ricardo, Inc to physically and chemically characterize the exhaust plume from recruited gasoline spark ignition (SI) vehicles. The project objectives were: (1) Measure representative particle size distributions from a set of on-road SI vehicles and compare these data to similar data collected on a small subset of light-duty gasoline vehicles tested on a chassis dynamometer with a dilution tunnel using the Unified Drive Cycle, at both room temperature (cold start) and 0 C (cold-cold start). (2) Compare data collected from SI vehicles to similar data collected from Diesel engines during the Coordinating Research Council E-43 project. (3) Characterize on-road aerosol during mixed midweek traffic and Sunday midday periods and determine fleet-specific emission rates. (4) Characterize bulk- and size-segregated chemical composition of the particulate matter (PM) emitted in the exhaust from the gasoline vehicles. Particle number concentrations and size distributions are strongly influenced by dilution and sampling conditions. Laboratory methods were evaluated to dilute SI exhaust in a way that would produce size distributions that were similar to those measured during laboratory experiments. Size fractionated samples were collected for chemical analysis using a nano-microorifice uniform deposit impactor (nano-MOUDI). In addition, bulk samples were collected and analyzed. A mixture of low, mid and high mileage vehicles were recruited for testing during the study. Under steady highway cruise conditions a significant particle signature above background was not measured, but during hard accelerations number size distributions for the test fleet were similar to modern heavy-duty Diesel vehicles. Number emissions were much higher at high speed and during cold-cold starts. Fuel specific number emissions range from 1012 to 3 x 1016 particles/kg fuel. A simple relationship between number and mass emissions was not observed. Data were collected on-road to compare weekday with weekend air quality around the Twin Cities area. This portion of the study resulted in the development of a method to apportion the Diesel and SI contribution to on-road aerosol.

  3. Hige Compression Ratio Turbo Gasoline Engine Operation Using Alcohol Enhancement

    SciTech Connect (OSTI)

    Heywood, John; Jo, Young Suk; Lewis, Raymond; Bromberg, Leslie; Heywood, John

    2015-10-31

    The overall objective of this project was to quantify the potential for improving the performance and efficiency of gasoline engine technology by use of alcohols to suppress knock. Knock-free operation is obtained by direct injection of a second “anti-knock” fuel such as ethanol, which suppresses knock when, with gasoline fuel, knock would occur. Suppressing knock enables increased turbocharging, engine downsizing, and use of higher compression ratios throughout the engine’s operating map. This project combined engine testing and simulation to define knock onset conditions, with different mixtures of gasoline and alcohol, and with this information quantify the potential for improving the efficiency of turbocharged gasoline spark-ignition engines, and the on-vehicle fuel consumption reductions that could then be realized. The more focused objectives of this project were therefore to: Determine engine efficiency with aggressive turbocharging and downsizing and high compression ratio (up to a compression ratio of 13.5:1) over the engine’s operating range; Determine the knock limits of a turbocharged and downsized engine as a function of engine speed and load; Determine the amount of the knock-suppressing alcohol fuel consumed, through the use of various alcohol-gasoline and alcohol-water gasoline blends, for different driving cycles, relative to the gasoline consumed; Determine implications of using alcohol-boosted engines, with their higher efficiency operation, in both light-duty and medium-duty vehicle sectors.

  4. Microsoft Word - Summer 2006 Motor Gasoline Prices.doc

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

    1 STEO Supplement: Summer 2006 Motor Gasoline Prices This supplement to the July 2006 Short-Term Energy Outlook (STEO) examines the various factors that have contributed to this summer's high gasoline prices and discusses how they may continue to impact markets over the next several months. EIA's forecast of the retail price of regular gasoline for the summer 2006 driving season (April 1 through September 30) has been revised steadily upwards from $2.62 per gallon in the April STEO to $2.88 per

  5. EIA-878 Motor Gasoline Price Survey - Reference Guide

    Gasoline and Diesel Fuel Update (EIA)

    8 Motor Gasoline Price Survey - Reference Guide For the purposes of the Motor Gasoline Price Survey (EIA-878), prices are collected for the following gasoline grades as defined by octane rating and ethanol content (ranging from no ethanol through up to 10% ethanol). At this time, we do not collect prices for E15 or above. Grade Octane Rating Ethanol Content Regular 85, 86, or 87 Contains no ethanol (E0) to Contains up to 10% ethanol (E10) Midgrade 88, 89, or 90 E0 to E10 Premium 91 or higher E0

  6. Table 48. Prime Supplier Sales Volumes of Motor Gasoline by...

    U.S. Energy Information Administration (EIA) Indexed Site

    - - 466.1 466.1 See footnotes at end of table. 48. Prime Supplier Sales Volumes of Motor Gasoline by Grade, Formulation, PAD District, and State 356 Energy Information...

  7. Table 43. Refiner Motor Gasoline Volumes by Grade, Sales Type...

    U.S. Energy Information Administration (EIA) Indexed Site

    253.2 2,222.4 W W 206.4 134.3 - 340.7 See footnotes at end of table. 43. Refiner Motor Gasoline Volumes by Grade, Sales Type, PAD District, and State 262 Energy Information...

  8. Table 48. Prime Supplier Sales Volumes of Motor Gasoline by...

    U.S. Energy Information Administration (EIA) Indexed Site

    - - 532.1 532.1 See footnotes at end of table. 48. Prime Supplier Sales Volumes of Motor Gasoline by Grade, Formulation, PAD District, and State 356 Energy Information...

  9. Table 43. Refiner Motor Gasoline Volumes by Grade, Sales Type...

    U.S. Energy Information Administration (EIA) Indexed Site

    150.0 2,026.7 W W 234.5 161.7 - 396.3 See footnotes at end of table. 43. Refiner Motor Gasoline Volumes by Grade, Sales Type, PAD District, and State 262 Energy Information...

  10. ,"Finished Motor Gasoline Refinery, Bulk Terminal, and Natural...

    U.S. Energy Information Administration (EIA) Indexed Site

    ,,"(202) 586-8800",,,"1252016 6:37:20 PM" "Back to Contents","Data 1: Finished Motor Gasoline Refinery, Bulk Terminal, and Natural Gas Plant Stocks" "Sourcekey","MGFSXUS1"...

  11. Process for conversion of lignin to reformulated hydrocarbon gasoline

    DOE Patents [OSTI]

    Shabtai, Joseph S. (Salt Lake City, UT); Zmierczak, Wlodzimierz W. (Salt Lake City, UT); Chornet, Esteban (Golden, CO)

    1999-09-28

    A process for converting lignin into high-quality reformulated hydrocarbon gasoline compositions in high yields is disclosed. The process is a two-stage, catalytic reaction process that produces a reformulated hydrocarbon gasoline product with a controlled amount of aromatics. In the first stage, a lignin material is subjected to a base-catalyzed depolymerization reaction in the presence of a supercritical alcohol as a reaction medium, to thereby produce a depolymerized lignin product. In the second stage, the depolymerized lignin product is subjected to a sequential two-step hydroprocessing reaction to produce a reformulated hydrocarbon gasoline product. In the first hydroprocessing step, the depolymerized lignin is contacted with a hydrodeoxygenation catalyst to produce a hydrodeoxygenated intermediate product. In the second hydroprocessing step, the hydrodeoxygenated intermediate product is contacted with a hydrocracking/ring hydrogenation catalyst to produce the reformulated hydrocarbon gasoline product which includes various desirable naphthenic and paraffinic compounds.

  12. Gasoline Compression Ignition - Start of Injection Timing Sweep...

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

    Contact Us For more information, contact Greg Cunningham at (630) 252-8232 or media@anl.gov. Gasoline Compression Ignition - Start of Injection Timing Sweep (VERIFI) Share Topic...

  13. U.S. gasoline prices decrease (short version)

    Gasoline and Diesel Fuel Update (EIA)

    price for regular gasoline fell to 3.46 a gallon on Monday. That's down 2-tenths of a penny from a week ago, based on the weekly price survey by the U.S. Energy Information...

  14. U.S. gasoline prices continue to decrease (short version)

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

    retail price for regular gasoline fell to 3.51 a gallon on Monday. That's down a penny from a week ago and down 13 cents from a month ago, based on the weekly price survey...

  15. U.S. gasoline prices continue to decrease (long version)

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

    retail price for regular gasoline fell to 3.51 a gallon on Monday. That's down a penny from a week ago and down 13 cents from a month ago, based on the weekly price survey...

  16. U.S. gasoline prices continues to decrease (short version)

    U.S. Energy Information Administration (EIA) Indexed Site

    retail price for regular gasoline fell to 2.32 a gallon on Monday. That's down half a penny from a week ago, based on the weekly price survey by the U.S. Energy Information...

  17. U.S. gasoline prices decrease (Short version)

    U.S. Energy Information Administration (EIA) Indexed Site

    price for regular gasoline fell to 2.45 a gallon on Monday. That's down 9-tenths of a penny from a week ago, based on the weekly price survey by the U.S. Energy Information...

  18. Oxidation characteristics of gasoline direct-injection (GDI) engine soot:

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

    Catalytic effects of ash and modified kinetic correlation | Argonne National Laboratory Oxidation characteristics of gasoline direct-injection (GDI) engine soot: Catalytic effects of ash and modified kinetic correlation Title Oxidation characteristics of gasoline direct-injection (GDI) engine soot: Catalytic effects of ash and modified kinetic correlation Publication Type Journal Article Year of Publication 2015 Authors Choi, S, Seong, H Journal Combustion and Flame Volume 162 Start Page

  19. Short-Term Energy Outlook April 1999-Summer Gasoline Outlook

    Gasoline and Diesel Fuel Update (EIA)

    Summer Motor Gasoline Outlook This year's base case outlook for summer (April-September) motor gasoline markets may be summarized as follows: * Pump Prices: (average regular) projected to average about $1.13 per gallon this summer, up 9-10 cents from last year. The increase, while substantial, still leaves average prices low compared to pre-1998 history, especially in inflation-adjusted terms. * Supplies: expected to be adequate, overall. Beginning-of-season inventories were even with the 1998

  20. Production of Gasoline and Diesel from Biomass via Fast Pyrolysis,

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

    Hydrotreating and Hydrocracking: A Design Case | Department of Energy Production of Gasoline and Diesel from Biomass via Fast Pyrolysis, Hydrotreating and Hydrocracking: A Design Case Production of Gasoline and Diesel from Biomass via Fast Pyrolysis, Hydrotreating and Hydrocracking: A Design Case The goal of the U.S. Department of Energy's Bioenergy Technologies Office (BETO) is to enable the development of biomass technologies. PDF icon PNNL-23053.pdf More Documents & Publications

  1. Gasoline Hybrid Electric Delivery Vehicles Reduce Tailpipe Emissions While

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

    Maintaining Fuel Economy - News Releases | NREL Gasoline Hybrid Electric Delivery Vehicles Reduce Tailpipe Emissions While Maintaining Fuel Economy February 23, 2011 The U.S. Department of Energy's (DOE) National Renewable Energy Laboratory (NREL) recently completed a yearlong technology evaluation of gasoline hybrid electric (gHEV) trucks compared with conventional diesel vehicles. A report released this week details NREL's efforts to determine the impact of hybridization on performance,

  2. In Vitro Genotoxicity of Gasoline and Diesel Engine Vehicle Exhaust

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

    Particulate and Semi-Volatile Organic Compound Materials | Department of Energy Gasoline and Diesel Engine Vehicle Exhaust Particulate and Semi-Volatile Organic Compound Materials In Vitro Genotoxicity of Gasoline and Diesel Engine Vehicle Exhaust Particulate and Semi-Volatile Organic Compound Materials 2002 DEER Conference Presentation: U.S. Centers for Disease Control and Prevention - National Institute for Occupational Safety and Health PDF icon 2002_deer_wallace.pdf More Documents &

  3. U.S. gasoline price falls under $3 (short version)

    Gasoline and Diesel Fuel Update (EIA)

    3, 2014 U.S. gasoline price falls under $3 (short version) The U.S. average retail price for regular gasoline fell to its lowest level since December 2010 at $2.99 a gallon on Monday. That's down 6.3 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. This is Amerine Woodyard, with EIA, in Washington. For more information, contact Amerine Woodyard, 202-586-1256

  4. U.S. gasoline prices continue to decrease (short version)

    Gasoline and Diesel Fuel Update (EIA)

    gasoline prices continue to decrease (short version) The U.S. average retail price for regular gasoline fell 5.4 cents from a week ago to $3.54 a gallon on Monday. This marks the first time since early March that prices have dipped below 3.55, based on the weekly price survey by the U.S. Energy Information Administration. This is Amerine Woodyard, with EIA, in Washington

  5. U.S. gasoline prices unchanged (short version)

    Gasoline and Diesel Fuel Update (EIA)

    gasoline prices continue to decrease (short version) The U.S. average retail price for regular gasoline fell 4.2 cents from a week ago to $3.59 a gallon on Monday. This marks the first time since early April that prices have dipped below 3.60, based on the weekly price survey by the U.S. Energy Information Administration. This is Amerine Woodyard, with EIA, in Washington

  6. U.S. gasoline prices unchanged (short version)

    Gasoline and Diesel Fuel Update (EIA)

    gasoline prices continue to decrease (short version) The U.S. average retail price for regular gasoline fell for the 5 th week in a row to $3.52 a gallon on Monday. That's down 2.4 cents from a week ago and down 16.3 cents from a month ago, based on the weekly price survey by the U.S. Energy Information Administration. This is Amerine Woodyard, with EIA, in Washington

  7. Diesel and Gasoline Engine Emissions: Characterization of Atmosphere

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

    Composition and Health Responses to Inhaled Emissions | Department of Energy and Gasoline Engine Emissions: Characterization of Atmosphere Composition and Health Responses to Inhaled Emissions Diesel and Gasoline Engine Emissions: Characterization of Atmosphere Composition and Health Responses to Inhaled Emissions 2005 Diesel Engine Emissions Reduction (DEER) Conference Presentations and Posters PDF icon 2005_deer_mcdonald.pdf More Documents & Publications The Effect of Changes in Diesel

  8. The motor gasoline industry: Past, present, and future. [Contains glossary

    SciTech Connect (OSTI)

    Not Available

    1991-01-01

    Motor gasoline constitutes the largest single component of US demand for petroleum products and is the Nation's most widely used transportation fuel. Because of its importance as a transportation fuel, motor gasoline has been the focus of several regulatory and tax policy initiatives in recent years. Much of the US refining capacity is specifically geared toward maximizing motor gasoline production, and future investments by the petroleum industry in refining infrastructure are likely to be made largely to produce larger volumes of clean motor gasoline. This report addresses major events and developments that have had an impact on motor gasoline supply, distribution, prices, and demand. The report provides historical perspective as well as analyses of important events from the 1970's and 1980's. Long-term forecasts are provided for the period from 1990 to 2010 in an effort to present and analyze possible future motor gasoline trends. Other forecasts examine the near-term impact of the invasion of Kuwait. 18 figs., 10 tabs.

  9. Three-Dimensional Composite Nanostructures for Lean NOx Emission Control |

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

    Department of Energy 1 DOE Hydrogen and Fuel Cells Program, and Vehicle Technologies Program Annual Merit Review and Peer Evaluation PDF icon ace030_gao_2011_o.pdf More Documents & Publications Monolithic Metal Oxide based Composite Nanowire Lean NOx Emission Control Catalysts Vehicle Technologies Office Merit Review 2015: Metal Oxide Nano-Array Catalysts for Low Temperature Diesel Oxidation Ultra-efficient, Robust and Well-defined Nano-Array based Monolithic Catalysts

  10. Applying Lean Concepts to Waste Site Closure - 13137

    SciTech Connect (OSTI)

    Proctor, M.L. [Washington Closure Hanford, 2620 Fermi, Richland, Washington 99354 (United States)] [Washington Closure Hanford, 2620 Fermi, Richland, Washington 99354 (United States)

    2013-07-01

    Washington Closure Hanford (WCH) was selected by the U.S. Department of Energy, Richland Operations Office to manage the River Corridor Closure Project, a 10-year contract in which WCH will clean up 220 mi{sup 2} of contaminated land at the Hanford Site in Richland, Washington. In the summer of 2011, with Tri-Party (DOE-RL, Environmental Protection Agency and Washington State Department of Ecology) Agreement Milestones due at the end of the calendar year, standard work practices were challenged in regards to closure documentation development. The Lean process, a concept that maximizes customer value while minimizing waste, was introduced to WCH's Sample Design and Cleanup Verification organization with the intention of eliminating waste and maximizing efficiencies. The outcome of implementing Lean processes and concepts was impressive. It was determined that the number of non-value added steps far outnumbered the value added steps. Internal processing time, document size, and review times were all reduced significantly; relationships with the customer and the regulators were also improved; and collaborative working relationships with the Tri Parties have been strengthened by working together on Lean initiatives. (authors)

  11. Electric and Gasoline Vehicle Fuel Efficiency Analysis

    Energy Science and Technology Software Center (OSTI)

    1995-05-24

    EAGLES1.1 is PC-based interactive software for analyzing performance (e.g., maximum range) of electric vehicles (EVs) or fuel economy (e.g., miles/gallon) of gasoline vehicles (GVs). The EV model provides a second by second simulation of battery voltage and current for any specified vehicle velocity/time or power/time profile. It takes into account the effects of battery depth-of-discharge (DOD) and regenerative braking. The GV fuel economy model which relates fuel economy, vehicle parameters, and driving cycle characteristics, canmore »be used to investigate the effects of changes in vehicle parameters and driving patterns on fuel economy. For both types of vehicles, effects of heating/cooling loads on vehicle performance can be studied. Alternatively, the software can be used to determine the size of battery needed to satisfy given vehicle mission requirements (e.g., maximum range and driving patterns). Options are available to estimate the time necessary for a vehicle to reach a certain speed with the application of a specified constant power and to compute the fraction of time and/or distance in a drivng cycle for speeds exceeding a given value.« less

  12. U.S. average gasoline prices falling to near $2 in December

    Gasoline and Diesel Fuel Update (EIA)

    U.S. average gasoline prices falling to near $2 in December U.S. retail gasoline prices are expected to continue falling over the next few months, dropping to a national average near $2 per gallon in December. In its new forecast, the U.S. Energy Information Administration said high gasoline production, cheaper winter-grade gasoline, and lower gasoline demand following this summer's peak driving season will contribute to savings at the pump for consumers. The monthly average price for gasoline

  13. MTBE, Oxygenates, and Motor Gasoline (Released in the STEO October 1999)

    Reports and Publications (EIA)

    1999-01-01

    The blending of methyl tertiary butyl ether (MTBE) into motor gasoline has increased dramatically since it was first produced 20 years ago. MTBE usage grew in the early 1980's in response to octane demand resulting initially from the phaseout of lead from gasoline and later from rising demand for premium gasoline. The oxygenated gasoline program stimulated an increase in MTBE production between 1990 and 1994. MTBE demand increased from 83,000 in 1990 to 161,000 barrels per day in 1994. The reformulated gasoline (RFG) program provided a further boost to oxygenate blending. The MTBE contained in motor gasoline increased to 269,000 barrels per day by 1997.

  14. Fact #741: August 20, 2012 Historical Gasoline Prices, 1929-2011 |

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

    Department of Energy 741: August 20, 2012 Historical Gasoline Prices, 1929-2011 Fact #741: August 20, 2012 Historical Gasoline Prices, 1929-2011 When adjusted for inflation, the average annual price of gasoline in 2011 was $1.24 above the price of gasoline in 1929. The effect of the U.S. embargo of oil from Iran can be seen in the early 1980's with the price of gasoline peaking in 1982. From 2002 to 2008 the price of gasoline rose substantially, but then fell in 2009 during the economic

  15. Plasma-Activated Lean NOx Catalysis for Heavy-Duty Diesel Emissions Control

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

    | Department of Energy Plasma-Activated Lean NOx Catalysis for Heavy-Duty Diesel Emissions Control Plasma-Activated Lean NOx Catalysis for Heavy-Duty Diesel Emissions Control PDF icon 2002_deer_aardahl.pdf More Documents & Publications Heavy-Duty NOx Emissions Control: Reformer-Assisted vs. Plasma-Facilitated Lean NOx Catalysis Selective reduction of NOx in oxygen rich environments with plasma-assisted catalysis: Catalyst development and mechanistic studies

  16. Lean NOx Traps - Microstructural Studies of Real World and Model Catalysts

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

    | Department of Energy Traps - Microstructural Studies of Real World and Model Catalysts Lean NOx Traps - Microstructural Studies of Real World and Model Catalysts 2005 Diesel Engine Emissions Reduction (DEER) Conference Presentations and Posters PDF icon 2005_deer_narula.pdf More Documents & Publications Low Temperature Emission Control Pre-Competitive Catalysis Research: Fundamental Sulfation/Desulfation Studies of Lean NOx Traps Investigation of Aging Mechanisms in Lean

  17. Ethanol Effects on Lean-Burn and Stoichiometric GDI Emissions | Department

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

    of Energy Ethanol Effects on Lean-Burn and Stoichiometric GDI Emissions Ethanol Effects on Lean-Burn and Stoichiometric GDI Emissions Characterized particulate emissions from U.S.-legal stoichiometric GDI and European certified lean-burn GDI vehicles operating on ethanol blends PDF icon deer11_storey.pdf More Documents & Publications Measurement and Characterization of Unregulated Emissions from Advanced Technologies Measurement and Characterization of Unregulated Emissions from Advanced

  18. IGNITION IMPROVEMENT OF LEAN NATURAL GAS MIXTURES

    SciTech Connect (OSTI)

    Jason M. Keith

    2005-02-01

    This report describes work performed during a thirty month project which involves the production of dimethyl ether (DME) on-site for use as an ignition-improving additive in a compression-ignition natural gas engine. A single cylinder spark ignition engine was converted to compression ignition operation. The engine was then fully instrumented with a cylinder pressure transducer, crank shaft position sensor, airflow meter, natural gas mass flow sensor, and an exhaust temperature sensor. Finally, the engine was interfaced with a control system for pilot injection of DME. The engine testing is currently in progress. In addition, a one-pass process to form DME from natural gas was simulated with chemical processing software. Natural gas is reformed to synthesis gas (a mixture of hydrogen and carbon monoxide), converted into methanol, and finally to DME in three steps. Of additional benefit to the internal combustion engine, the offgas from the pilot process can be mixed with the main natural gas charge and is expected to improve engine performance. Furthermore, a one-pass pilot facility was constructed to produce 3.7 liters/hour (0.98 gallons/hour) DME from methanol in order to characterize the effluent DME solution and determine suitability for engine use. Successful production of DME led to an economic estimate of completing a full natural gas-to-DME pilot process. Additional experimental work in constructing a synthesis gas to methanol reactor is in progress. The overall recommendation from this work is that natural gas to DME is not a suitable pathway to improved natural gas engine performance. The major reasons are difficulties in handling DME for pilot injection and the large capital costs associated with DME production from natural gas.

  19. Apparatus and method for burning a lean, premixed fuel/air mixture with low NOx emission

    DOE Patents [OSTI]

    Kostiuk, Larry W. (Edmonton, CA); Cheng, Robert K. (Kensington, CA)

    1996-01-01

    An apparatus for enabling a burner to stably burn a lean fuel/air mixture. The burner directs the lean fuel/air mixture in a stream. The apparatus comprises an annular flame stabilizer; and a device for mounting the flame stabilizer in the fuel/air mixture stream. The burner may include a body having an internal bore, in which case, the annular flame stabilizer is shaped to conform to the cross-sectional shape of the bore, is spaced from the bore by a distance greater than about 0.5 mm, and the mounting device mounts the flame stabilizer in the bore. An apparatus for burning a gaseous fuel with low NOx emissions comprises a device for premixing air with the fuel to provide a lean fuel/air mixture; a nozzle having an internal bore through which the lean fuel/air mixture passes in a stream; and a flame stabilizer mounted in the stream of the lean fuel/air mixture. The flame stabilizer may be mounted in the internal bore, in which case, it is shaped and is spaced from the bore as just described. In a method of burning a lean fuel/air mixture, a lean fuel/air mixture is provided, and is directed in a stream; an annular eddy is created in the stream of the lean fuel/air mixture; and the lean fuel/air mixture is ignited at the eddy.

  20. Vehicle Technologies Office Merit Review 2014: Advanced Lean-Burn DI Spark Ignition Fuels Research

    Broader source: Energy.gov [DOE]

    Presentation given by Sandia National Laboratories at 2014 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about advanced lean...

  1. Lean NOx Trap Formulation Effect on Performance with In-Cylinder...

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

    Formulation Effect on Performance with In-Cylinder Regeneration Strategies Lean NOx Trap Formulation Effect on Performance with In-Cylinder Regeneration Strategies Poster ...

  2. Synergies of High-Efficiency Clean Combustion and Lean NOx Trap...

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

    Trap Catalysts investigation of potential synergies of low emission advanced combustion techniques and advanced lean exhaust catalytic aftertreatment. PDF icon deer08parks.pdf...

  3. Two-Stage Variable Compression Ratio (VCR) System to Increase Efficiency in

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

    Gasoline Powertrains | Department of Energy Stage Variable Compression Ratio (VCR) System to Increase Efficiency in Gasoline Powertrains Two-Stage Variable Compression Ratio (VCR) System to Increase Efficiency in Gasoline Powertrains Presents two-stage variable compression ratio mechanism realized by varying the connecting rod length, description of the system layout, working principle and expected fuel savings benefits when used in current and future gasoline engine concepts PDF icon

  4. Simulation of catalytic oxidation and selective catalytic NOx reduction in lean-exhaust hybrid vehicles

    SciTech Connect (OSTI)

    Gao, Zhiming; Daw, C Stuart; Chakravarthy, Veerathu K

    2012-01-01

    We utilize physically-based models for diesel exhaust catalytic oxidation and urea-based selective catalytic NOx reduction to study their impact on drive cycle performance of hypothetical light-duty diesel powered hybrid vehicles. The models have been implemented as highly flexible SIMULINK block modules that can be used to study multiple engine-aftertreatment system configurations. The parameters of the NOx reduction model have been adjusted to reflect the characteristics of Cu-zeolite catalysts, which are of widespread current interest. We demonstrate application of these models using the Powertrain System Analysis Toolkit (PSAT) software for vehicle simulations, along with a previously published methodology that accounts for emissions and temperature transients in the engine exhaust. Our results illustrate the potential impact of DOC and SCR interactions for lean hybrid electric and plug-in hybrid electric vehicles.

  5. Electrical impedance tomography of the 1995 OGI gasoline release

    SciTech Connect (OSTI)

    Daily, W.; Ramirez, A.

    1996-10-01

    Electrical impedance tomography (EIT) was used to image the plume resulting from a release of 378 liters (100 gallons) of gasoline into a sandy acquifer. Images were made in 5 planes before and 5 times during the release, to generate a detailed picture of the spatial as well as the temporal development of the plume as it spread at the water table. Information of the electrical impedance (both in phase and out of phase voltages) was used or several different frequencies to produce images. We observed little dispersion in the images either before or after the gasoline entered the acquifer. Likewise, despite some laboratory measurements of impedances, there was no evidence of a change in the reactance in the soil because of the gasoline.

  6. Novel Characterization of GDI Engine Exhaust for Gasoline and Mid-Level Gasoline-Alcohol Blends

    SciTech Connect (OSTI)

    Storey, John Morse; Lewis Sr, Samuel Arthur; Szybist, James P; Thomas, John F; Barone, Teresa L; Eibl, Mary A; Nafziger, Eric J; Kaul, Brian C

    2014-01-01

    Gasoline direct injection (GDI) engines can offer improved 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 more stringent fuel economy standards. GDI engines typically emit the most particulate matter (PM) during periods of rich operation such as start-up and acceleration, and emissions of air toxics are also more likely during this condition. A 2.0 L GDI engine was operated at lambda of 0.91 at typical loads for acceleration (2600 rpm, 8 bar BMEP) on three different fuels; an 87 anti-knock index (AKI) gasoline (E0), 30% ethanol blended with the 87 AKI fuel (E30), and 48% isobutanol blended with the 87 AKI fuel. E30 was chosen to maximize octane enhancement while minimizing ethanol-blend level and iBu48 was chosen to match the same fuel oxygen level as E30. Particle size and number, organic carbon and elemental carbon (OC/EC), soot HC speciation, and aldehydes and ketones were all analyzed during the experiment. A new method for soot HC speciation is introduced using a direct, thermal desorption/pyrolysis inlet for the gas chromatograph (GC). Results showed high levels of aromatic compounds were present in the PM, including downstream of the catalyst, and the aldehydes were dominated by the alcohol blending.

  7. Fact #906: January 4, 2016 VMT and the Price of Gasoline Typically...

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

    the Price of Gasoline Typically Move in Opposition Fact 906: January 4, 2016 VMT and the Price of Gasoline Typically Move in Opposition SUBSCRIBE to the Fact of the Week The ...

  8. Fact #906: January 4, 2016 VMT and the Price of Gasoline Typically...

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

    Fact 906: January 4, 2016 VMT and the Price of Gasoline Typically Move in Opposition - Dataset Excel file and dataset for VMT and the Price of Gasoline Typically Move in ...

  9. Motor Gasoline Consumption 2008 - Historical Perspective and Short-Term Projections

    Reports and Publications (EIA)

    2008-01-01

    This report reviews how gasoline markets relate to population, income, prices, and the growing role of ethanol. It also analyzes the structural shift in motor gasoline markets that took place in the late 1990s.

  10. Modeling and Analysis of Natural Gas and Gasoline In A High Compressio...

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

    and Gasoline In A High Compression Ratio High Efficiency ICRE Modeling and Analysis of Natural Gas and Gasoline In A High Compression Ratio High Efficiency ICRE performance of a ...

  11. Experimental investigation into the effect of reformer gas addition on flame speed and flame front propagation in premixed, homogeneous charge gasoline engines

    SciTech Connect (OSTI)

    Conte, Enrico; Boulouchos, Konstantinos

    2006-07-15

    The effect of reformer gas addition to gasoline in internal combustion engines is assessed based on in-cylinder measurement techniques. These include ion sensors, an optical spark plug and heat release analysis from the cylinder pressure. A detailed analysis of these measurements is presented, giving insight into the combustion process and into the energy release. The flame front shape and propagation in the combustion chamber are reconstructed and the flame speed is estimated. The laminar flame speed has been observed to increase linearly with the energy fraction of reformer gas in the fuel blend. From pure gasoline to pure reformer gas the laminar flame speed increases by a factor of 4.4. The relative increase in the turbulent flame speed is lower. These results confirm what can be observed from the heat release analysis, that reformer gas addition mainly shortens the first phase of the combustion process. Different reformer gas compositions were tested, varying the ratio of hydrogen to inert species. Finally, flame propagation and flame speed at EGR-burn limit and at lean-burn limit are investigated. (author)

  12. An Experimental Investigation of Low Octane Gasoline in Diesel Engines |

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

    Department of Energy Low Octane Gasoline in Diesel Engines An Experimental Investigation of Low Octane Gasoline in Diesel Engines Presentation given at the 16th Directions in Engine-Efficiency and Emissions Research (DEER) Conference in Detroit, MI, September 27-30, 2010. PDF icon deer10_ciatti.pdf More Documents & Publications Use of Low Cetane Fuel to Enable Low Temperature Combustion High-Efficiency, Ultra-Low Emission Combustion in a Heavy-Duty Engine via Fuel Reactivity Control

  13. U.S. Gasoline Price Continues to Increase (Long version)

    Gasoline and Diesel Fuel Update (EIA)

    7, 2015 U.S. Gasoline Price Continues to Increase (Long version) The U.S. average retail price for regular gasoline rose to $2.27 a gallon on Monday. That's up 8.3 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Pump prices were highest in the West Coast states at 2.62 a gallon, up 14.8 cents from a week ago. Prices were lowest in the Rocky Mountain states at 2 dollars a gallon, up 4.9 cents. This is Marcela Rourk, with EIA, in Washington.

  14. U.S. Gasoline prices continue to decrease (Long version)

    Gasoline and Diesel Fuel Update (EIA)

    , 2014 U.S. Gasoline prices continue to increase (long version) The U.S. average retail price for regular gasoline rose to $3.69 a gallon on Monday. That's up 1.6 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Pump prices were highest in the West Coast states at 4.01 a gallon, up 3-tenths of a penny from a week ago. Prices were lowest in the Gulf Coast region at 3.44 a gallon, up half a penny

  15. U.S. average gasoline price up slightly

    Gasoline and Diesel Fuel Update (EIA)

    U.S. average gasoline price up slightly The U.S. average retail price for regular gasoline rose slightly to $3.65 a gallon on Monday. That's up a tenth of a penny from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Pump prices were highest in the West Coast region at 3.89 a gallon, down 4.4 cents from a week ago. Prices were lowest in the Gulf Coast States at 3.34 a gallon, down 2.6 cents. Jonathan Cogan for EIA,

  16. U.S. gasoline continue to increase (long version)

    Gasoline and Diesel Fuel Update (EIA)

    6, 2014 U.S. gasoline continue to increase (long version) The U.S. average retail price for regular gasoline rose to $3.33 a gallon on Monday. That's up 1- tenth of a penny from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Pump prices were highest in the New England region at 3.56 a gallon, up 8-tenths of a penny from a week ago. Prices were lowest in the Rocky Mountain States and the Gulf Coast region at 3.12 a gallon, up 2 cents and up 6-tenths of

  17. U.S. gasoline continue to increase (long version)

    Gasoline and Diesel Fuel Update (EIA)

    30, 2013 U.S. gasoline continue to increase (long version) The U.S. average retail price for regular gasoline rose to $3.33 a gallon on Monday. That's up 6 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Pump prices were highest in the New England region at 3.55 a gallon, up 2.8 cents from a week ago. Prices were lowest in the Rocky Mountain States at 3.10 a gallon, up 4 1/2 cents from a week ago. This is Amerine Woodyard, with EIA, in

  18. U.S. gasoline price continue to decrease (long version)

    Gasoline and Diesel Fuel Update (EIA)

    7, 2015 U.S. gasoline price continue to decrease (long version) The U.S. average retail price for regular gasoline fell to $2.75 a gallon on Monday. That's down 5.7 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Pump prices were highest in the West Coast states at 3.55 a gallon, down 5.9 cents from a week ago. Prices were lowest in the Gulf Coast states at 2.44 a gallon, down 4.9 cents. This is Amerine Woodyard, with EIA, in Washington.

  19. U.S. gasoline price continue to decrease (long version)

    Gasoline and Diesel Fuel Update (EIA)

    gasoline price increases ( (long version) The U.S. average retail price for regular gasoline rose to $2.72 a gallon on Monday. That's up 8.7 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Pump prices were highest in the West Coast states at 3.36 a gallon, up 2-tenths of a penny from a week ago. Prices were lowest in the Gulf Coast states at 2.34 a gallon.This is Amerine Woodyard

  20. U.S. gasoline price continues to decrease (long version)

    Gasoline and Diesel Fuel Update (EIA)

    6, 2015 U.S. gasoline price continues to decrease (long version) The U.S. average retail price for regular gasoline fell to $2.79 a gallon on Monday. That's down 8-tenths of a penny from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Pump prices were highest in the West Coast states at 3.30 a gallon, down 1.2 cents from a week ago. Prices were lowest in the Gulf Coast states at 2.52

  1. U.S. gasoline price continues to decrease (long version)

    Gasoline and Diesel Fuel Update (EIA)

    gasoline price continue to decrease (long version) The U.S. average retail price for regular gasoline fell to $2.32 a gallon on Monday. That's down 4-tenths of a penny from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Pump prices were highest in the West Coast states at 2.79 a gallon, down 5.1 cents from a week ago. Prices were lowest in the Gulf Coast states at 2.04 a gallon, up 2 cents. This is Amerine Woodydard

  2. U.S. gasoline price continues to increase (long version)

    Gasoline and Diesel Fuel Update (EIA)

    February 9, 2015 U.S. gasoline price continues to increase (long version) The U.S. average retail price for regular gasoline rose to $2.19 a gallon on Monday. That's up 12.3 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Pump prices were highest in the West Coast states at 2.47 a gallon, up 14.6 cents from a week ago. Prices were lowest in the Rocky Mountain states at 1.95 a gallon, up 7.9

  3. U.S. gasoline price continues to increase (long version)

    Gasoline and Diesel Fuel Update (EIA)

    3, 2015 U.S. gasoline price continues to increase (long version) The U.S. average retail price for regular gasoline rose to $2.33 a gallon on Monday. That's up 5.8 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Pump prices were highest in the West Coast states at 2.76 a gallon, up 13.6 cents from a week ago. Prices were lowest in the Rocky Mountain states at 2.04 a gallon, up 4.6 cents

  4. U.S. gasoline price decrease (long version)

    Gasoline and Diesel Fuel Update (EIA)

    0, 2015 U.S. gasoline price decrease (long version) The U.S. average retail price for regular gasoline dropped to $2.80 a gallon on Monday. That's down 3.2 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Pump prices were highest in the West Coast states at 3.60 a gallon, up 1.5 cents from a week ago. Prices were lowest in the Gulf Coast states at 2.49 a gallon, down 3.9 cents. This is Marlana Anderson, with EIA, in Washington. For more

  5. U.S. gasoline price falls under $3 (long version)

    Gasoline and Diesel Fuel Update (EIA)

    November 3, 2014 U.S. gasoline price falls under $3 (long version) The U.S. average retail price for regular gasoline fell to its lowest level since December 2010 at $2.99 a gallon on Monday. That's down 6.3 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Pump prices were highest in the West Coast states at 3.30 a gallon, down 9 cents from a week ago. Prices were lowest in the Gulf Coast region at 2.77 a gallon, down 6

  6. U.S. gasoline price increases (long version)

    Gasoline and Diesel Fuel Update (EIA)

    3, 2015 U.S. gasoline price increases (long version) The U.S. average retail price for regular gasoline rose to $2.83 a gallon on Monday. That's up 4.1 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Pump prices were highest in the West Coast states at 3.59 a gallon, up 29.2 cents from a week ago. Prices were lowest in the Gulf Coast states at 2.53 a gallon, up 6-tenths of a penny

  7. U.S. gasoline prices continue to decrease (long version)

    Gasoline and Diesel Fuel Update (EIA)

    , 2014 U.S. gasoline prices continue to decrease (long version) The U.S. average retail price for regular gasoline fell to $2.78 a gallon on Monday. That's down 4.3 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Pump prices were highest in the West Coast states at 3.02 a gallon, down 3.2 cents from a week ago. Prices were lowest in the Gulf Coast region at 2.53 a gallon, down 6

  8. U.S. gasoline prices continue to increase (long version)

    Gasoline and Diesel Fuel Update (EIA)

    9, 2015 U.S. gasoline prices continue to increase (long version) The U.S. average retail price for regular gasoline rose to $2.49 a gallon on Monday. That's up 1.4 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Pump prices were highest in the West Coast states at 3.18 a gallon, up 5.2 cents from a week ago. Prices were lowest in the Rocky Mountain states and Gulf Coast region at 2.23 a gallon. This is Amerine Woodyard, with EIA, in

  9. U.S. gasoline prices continue to increase (long version)

    Gasoline and Diesel Fuel Update (EIA)

    8, 2015 U.S. gasoline prices continue to increase (long version) The U.S. average retail price for regular gasoline rose to $2.74 a gallon on Monday. That's up 5.3 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Pump prices were highest in the West Coast states at 3.51 a gallon, up 6.9 cents from a week ago. Prices were lowest in the Gulf Coast states at 2.47 a gallon, up 3 cents. This is Amerine Woodyard, with EIA, in Washington.

  10. U.S. gasoline prices continue to increase (long version)

    Gasoline and Diesel Fuel Update (EIA)

    26, 2015 U.S. gasoline prices continue to increase (long version) The U.S. average retail price for regular gasoline rose to $2.77 a gallon on Memorial Day Monday. That's up 3 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Pump prices were highest in the West Coast states at 3.49 a gallon, down 2.6 cents from a week ago. Prices were lowest in the Gulf Coast states at 2.49 a gallon, up 2

  11. U.S. gasoline prices continue to increase (long version)

    Gasoline and Diesel Fuel Update (EIA)

    June 1, 2015 U.S. gasoline prices continue to increase (long version) The U.S. average retail price for regular gasoline rose to $2.78 a gallon on Monday. That's up 6- tenths of a penny from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Pump prices were highest in the West Coast states at 3.44 a gallon, down 4.3 cents from a week ago. Prices were lowest in the Gulf Coast states at 2.48 a gallon, down 3-tenths of a penny.

  12. U.S. gasoline prices continued to decreased (long version)

    Gasoline and Diesel Fuel Update (EIA)

    6, 2013 U.S. gasoline prices continued to decreased (long version) The U.S. average retail price for regular gasoline fell to $3.24 a gallon on Monday. That's down 3 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Pump prices were highest in the New England region at 3.51 a gallon, up 1.4 cents from a week ago. Prices were lowest in the Gulf Coast States at 3.05 a gallon, down 5.7 cents. This is Amerine Woodyard, with EIA, in Washi

  13. U.S. gasoline prices decrease (long version)

    Gasoline and Diesel Fuel Update (EIA)

    0, 2015 U.S. gasoline prices decrease (long version) The U.S. average retail price for regular gasoline fell to $2.45 a gallon on Monday. That's down 9-tenths of a penny from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Pump prices were highest in the West Coast states at $3 a gallon, down 4.7 cents from a week ago. Prices were lowest in the Gulf Coast states at 2.19 a gallon, down 4-tenths of a penny. This is Amerine Woodyard, with EIA, in

  14. U.S. gasoline prices decrease (long version)

    Gasoline and Diesel Fuel Update (EIA)

    April 6, 2015 U.S. gasoline prices decrease (long version) The U.S. average retail price for regular gasoline fell to $2.41 a gallon on Monday. That's down 3 ½ cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Pump prices were highest in the West Coast states at 2.95 a gallon, down 4.6 cents from a week ago. Prices were lowest in the Gulf Coast states at 2.18 a gallon, down 4-tenths of a penny

  15. U.S. gasoline prices decrease (long version)

    Gasoline and Diesel Fuel Update (EIA)

    6, 2014 U.S. gasoline prices decrease (long version) The U.S. average retail price for regular gasoline fell to $3.30 a gallon on Monday. That's down a nickel and a half from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Pump prices were highest in the West Coast states at 3.61 a gallon, down 3 ½ cents from a week ago. Prices were lowest in the Gulf Coast region at 3.11 a gallon, down 4.7 cents. This is Amerine Woodyard

  16. U.S. gasoline prices decrease (long version)

    Gasoline and Diesel Fuel Update (EIA)

    4, 2014 U.S. gasoline prices decrease (long version) The U.S. average retail price for regular gasoline fell to $3.64 a gallon on Monday. That's down 4.3 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Pump prices were highest in the West Coast states at $4 a gallon, down 3.6 cents from a week ago. Prices were lowest in the Gulf Coast region at 3.44 a gallon, down 2.2 cents

  17. U.S. gasoline prices decrease (long version)

    Gasoline and Diesel Fuel Update (EIA)

    September 8, 2014 U.S. gasoline prices decrease (long version) The U.S. average retail price for regular gasoline fell to $3.46 a gallon on Monday. That's down 2-tenths of a penny from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Pump prices were highest in the West Coast states at 3.77 a gallon, down 2.3 cents from a week ago. Prices were lowest in the Gulf Coast region at 3.22 a gallon, up 7-tenths of a penny. This is Amerine Woodyard, with EIA,

  18. U.S. gasoline prices show little movement (long version)

    Gasoline and Diesel Fuel Update (EIA)

    30, 2014 U.S. gasoline prices show little movement (long version) The U.S. average retail price for regular gasoline showed no movement from last week. The average price remained flat at $3.70 a gallon on Monday, based on the weekly price survey by the U.S. Energy Information Administration. Pump prices were highest in the West Coast states at 4.04 a gallon, up 2 ½ cents from a week ago. Prices were lowest in the Gulf Coast region at 3.48 a gallon, down 1.1 cents. This is Amerine Woodyard, with

  19. U.S. gasoline prices show little movement (long version)

    Gasoline and Diesel Fuel Update (EIA)

    7, 2014 U.S. gasoline prices decrease (long version) The U.S. average retail price for regular gasoline fell to $3.68 a gallon on Monday. That's down 2.6 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Pump prices were highest in the West Coast states at 4.04 a gallon, up a tenth of a penny from a week ago. Prices were lowest in the Gulf Coast region at 3.46

  20. U.S. gasoline prices show little movement (long version)

    Gasoline and Diesel Fuel Update (EIA)

    1, 2014 U.S. gasoline prices decrease for third week in a row (long version) The U.S. average retail price for regular gasoline fell 4.2 cents from a week ago to $3.59 a gallon on Monday. This marks the first time since early April that prices have dipped below 3.60, based on the weekly price survey by the U.S. Energy Information Administration. Pump prices were highest in the West Coast states at 3.96 a gallon, down 4.4 cents from a week ago. Prices were lowest in the Gulf Coast region at 3.39

  1. U.S. gasoline prices show little movement (long version)

    Gasoline and Diesel Fuel Update (EIA)

    August 4, 2014 U.S. gasoline prices decrease for fifth week in a row (long version) The U.S. average retail price for regular gasoline fell for the 5 th week in a row to $3.52 a gallon on Monday. That's down 2.4 cents from a week ago and down 16.3 cents from a month ago, based on the weekly price survey by the U.S. Energy Information Administration. Pump prices were highest in the West Coast states at 3.89 a gallon, down 3.1 cents from a week ago. Prices were lowest in the Gulf Coast region at

  2. Methyl aryl ethers from coal liquids as gasoline extenders and octane improvers

    SciTech Connect (OSTI)

    Singerman, G.M.

    1980-11-01

    A mixture of methyl aryl ethers derived from the phenols present in direct liquefaction coal liquids shows considerable promise as a gasoline blending agent and octane improver. The mixture of methyl aryl ethers was blended at five volume percent with a commercial, unleaded gasoline. The properties and performance of the blend in a variety of laboratory and automotive tests is reported. The tests show that the mixture of methyl aryl ethers improves gasoline octane without degrading other gasoline properties.

  3. U.S. Sales to End Users Prices for Motor Gasoline

    U.S. Energy Information Administration (EIA) Indexed Site

    Sales Type: Sales to End Users, Average Through Retail Outlets Sales for Resale, Average DTW Rack Bulk Download Series History Download Series History Definitions, Sources & Notes Definitions, Sources & Notes Show Data By: Formulation/ Grade Sales Type Area Jul-15 Aug-15 Sep-15 Oct-15 Nov-15 Dec-15 View History Gasoline, Average - - - - - - 1983-2015 Regular Gasoline - - - - - - 1983-2015 Midgrade Gasoline - - - - - - 1988-2015 Premium Gasoline - - - - - - 1983-2015 Conventional, Average

  4. Fact #824: June 9, 2014 EPA Sulfur Standards for Gasoline | Department of

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

    Energy 4: June 9, 2014 EPA Sulfur Standards for Gasoline Fact #824: June 9, 2014 EPA Sulfur Standards for Gasoline Sulfur naturally occurs in gasoline and diesel fuel, contributing to pollution when the fuel is burned. Beginning in 2004, standards were set on the amount of sulfur in gasoline (Tier 2 standards). Separate standards were set for different entities, such as large refiners, small refiners, importers, downstream wholesalers, etc. In March 2014, Tier 3 standards were finalized by

  5. Fact #835: August 25, 2014 Average Annual Gasoline Pump Price, 1929-2013

    Office of Environmental Management (EM)

    - Dataset | Department of Energy 35: August 25, 2014 Average Annual Gasoline Pump Price, 1929-2013 - Dataset Fact #835: August 25, 2014 Average Annual Gasoline Pump Price, 1929-2013 - Dataset Excel file with dataset for Fact #835: Average Annual Gasoline Pump Price, 1929-2013 File fotw#835_web.xlsx More Documents & Publications Fact #915: March 7, 2016 Average Historical Annual Gasoline Pump Price, 1929-2015 - Dataset Fact #888: August 31, 2015 Historical Gas Prices - Dataset Offshore

  6. Fact #890: September 14, 2015 Gasoline Prices Are Affected by Changes in

    Office of Environmental Management (EM)

    Refinery Output - Dataset | Department of Energy 0: September 14, 2015 Gasoline Prices Are Affected by Changes in Refinery Output - Dataset Fact #890: September 14, 2015 Gasoline Prices Are Affected by Changes in Refinery Output - Dataset Excel file and dataset for Gasoline Prices Are Affected by Changes in Refinery Output File fotw#890_web.xlsx More Documents & Publications Fact #858 February 2, 2015 Retail Gasoline Prices in 2014 Experienced the Largest Decline since 2008 - Dataset LCC

  7. 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).

  8. Development of Chemical Kinetic Models for Lean NOx Traps | Department of

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

    Energy 1 DOE Hydrogen and Fuel Cells Program, and Vehicle Technologies Program Annual Merit Review and Peer Evaluation PDF icon ace035_larson_2011_o.pdf More Documents & Publications Development of Chemical Kinetic Models for Lean NOx Traps Benchmark Reaction Mechanisms and Kinetics for Lean NOx Traps CLEERS Coordination & Development of Catalyst Process Kinetic Data

  9. Utilization of Renewable Oxygenates as Gasoline Blending Components

    SciTech Connect (OSTI)

    Yanowitz, J.; Christensen, E.; McCormick, R. L.

    2011-08-01

    This report reviews the use of higher alcohols and several cellulose-derived oxygenates as blend components in gasoline. Material compatibility issues are expected to be less severe for neat higher alcohols than for fuel-grade ethanol. Very little data exist on how blending higher alcohols or other oxygenates with gasoline affects ASTM Standard D4814 properties. Under the Clean Air Act, fuels used in the United States must be 'substantially similar' to fuels used in certification of cars for emission compliance. Waivers for the addition of higher alcohols at concentrations up to 3.7 wt% oxygen have been granted. Limited emission testing on pre-Tier 1 vehicles and research engines suggests that higher alcohols will reduce emissions of CO and organics, while NOx emissions will stay the same or increase. Most oxygenates can be used as octane improvers for standard gasoline stocks. The properties of 2-methyltetrahydrofuran, dimethylfuran, 2-methylfuran, methyl pentanoate and ethyl pentanoate suggest that they may function well as low-concentration blends with gasoline in standard vehicles and in higher concentrations in flex fuel vehicles.

  10. Gasoline prices fall for first time this year (short version)

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

    short version) The U.S. average retail price for regular gasoline fell for the first time this year to $3.76 a gallon on Monday. That's down 2 1/2 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  11. Gasoline prices increase for first time since February (short version)

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

    (short version) The U.S. average retail price for regular gasoline rose for the first time since February to $3.54 a gallon on Monday. That's up 1.8 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  12. U.S. gasoline price continue to decrease (short version)

    Gasoline and Diesel Fuel Update (EIA)

    short version) The U.S. average retail price for regular gasoline fell to $2.69 a gallon on Monday. That's down 5.6 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration

  13. U.S. gasoline price continue to decrease (short version)

    Gasoline and Diesel Fuel Update (EIA)

    short version) The U.S. average retail price for regular gasoline fell to $2.63 a gallon on Monday. That's down 6 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  14. U.S. gasoline price decreases (short version)

    Gasoline and Diesel Fuel Update (EIA)

    short version) The U.S. average retail price for regular gasoline fell to $2.64 a gallon on Monday. That's down 7.9 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  15. U.S. gasoline prices continue to decrease (short version)

    Gasoline and Diesel Fuel Update (EIA)

    short version) The U.S. average retail price for regular gasoline fell to $2.03 a gallon on Monday. That's down 6-tenths of a penny from a week ago, based on the weekly price survey by the U.S. Energy Information Administration

  16. U.S. gasoline prices continue to decrease (short version)

    Gasoline and Diesel Fuel Update (EIA)

    short version) The U.S. average retail price for regular gasoline fell to $2.00 a gallon on Monday. That's down 3.2 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  17. U.S. gasoline prices continue to decrease (short version)

    Gasoline and Diesel Fuel Update (EIA)

    short version) The U.S. average retail price for regular gasoline fell to $1.91 a gallon on Monday. That's down 8.2 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration

  18. U.S. gasoline prices continue to decrease (short version)

    Gasoline and Diesel Fuel Update (EIA)

    short version) The U.S. average retail price for regular gasoline fell to $1.86 a gallon on Monday. That's down 5.8 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  19. U.S. gasoline prices continue to decrease (short version)

    Gasoline and Diesel Fuel Update (EIA)

    short version) The U.S. average retail price for regular gasoline fell to $1.82 a gallon on Monday. That's down 3.4 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration

  20. U.S. gasoline prices continue to decrease (short version)

    Gasoline and Diesel Fuel Update (EIA)

    short version) The U.S. average retail price for regular gasoline fell to $1.76 a gallon on Monday. That's down 6.3 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration

  1. U.S. gasoline prices continue to decrease (short version)

    Gasoline and Diesel Fuel Update (EIA)

    short version) The U.S. average retail price for regular gasoline fell to $1.72 a gallon on Monday. That's down 3 ½ cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  2. U.S. gasoline prices continue to decrease (short version)

    Gasoline and Diesel Fuel Update (EIA)

    short version) The U.S. average retail price for regular gasoline rose to $1.73 a gallon on Monday. That's up 6- tenths of a penny from a week ago, based on the weekly price survey by the U.S. Energy Information Administration

  3. U.S. gasoline prices continue to decrease (short version)

    Gasoline and Diesel Fuel Update (EIA)

    short version) The U.S. average retail price for regular gasoline rose to $1.78 a gallon on Monday. That's up 5.3 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  4. U.S. gasoline prices continue to decrease (short version)

    Gasoline and Diesel Fuel Update (EIA)

    short version) The U.S. average retail price for regular gasoline rose to $1.84 a gallon on Monday. That's up 5.8 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  5. U.S. gasoline prices continue to decrease (short version)

    Gasoline and Diesel Fuel Update (EIA)

    short version) The U.S. average retail price for regular gasoline rose to $1.96 a gallon on Monday. That's up 12 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  6. U.S. gasoline prices continue to decrease (short version)

    Gasoline and Diesel Fuel Update (EIA)

    short version) The U.S. average retail price for regular gasoline fell to $2.44 a gallon on Monday. That's down 7.3 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  7. U.S. gasoline prices continue to decrease (short version)

    Gasoline and Diesel Fuel Update (EIA)

    short version) The U.S. average retail price for regular gasoline fell to $2.38 a gallon on Monday. That's down 6.2 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  8. U.S. gasoline prices continue to decrease (short version)

    Gasoline and Diesel Fuel Update (EIA)

    short version) The U.S. average retail price for regular gasoline fell to $2.23 a gallon on Monday. That's down 4.9 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration

  9. U.S. gasoline prices continue to decrease (short version)

    Gasoline and Diesel Fuel Update (EIA)

    short version) The U.S. average retail price for regular gasoline fell to $2.22 a gallon on Monday. That's down 4-tenths of a penny from a week ago, based on the weekly price survey by the U.S. Energy Information Administration

  10. U.S. gasoline prices continue to decrease (short version)

    Gasoline and Diesel Fuel Update (EIA)

    short version) The U.S. average retail price for regular gasoline fell to $2.09 a gallon on Monday. That's down 8.4 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration

  11. U.S. gasoline prices continue to decrease (short version)

    Gasoline and Diesel Fuel Update (EIA)

    short version) The U.S. average retail price for regular gasoline fell to $2.06 a gallon on Monday. That's down 3 ½ cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  12. U.S. gasoline prices continue to decrease (short version)

    Gasoline and Diesel Fuel Update (EIA)

    short version) The U.S. average retail price for regular gasoline fell to $2.05 a gallon on Monday. That's down 6-tenths of a penny from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  13. U.S. gasoline prices continue to decrease (short version)

    Gasoline and Diesel Fuel Update (EIA)

    short version) The U.S. average retail price for regular gasoline fell to its lowest level since April 2009 to $2.04 a gallon on Monday. That's down 1.6 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration

  14. U.S. gasoline prices continue to decrease (short version)

    Gasoline and Diesel Fuel Update (EIA)

    short version) The U.S. average retail price for regular gasoline fell to $2.03 a gallon on Monday. That's down 1.1 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration

  15. U.S. gasoline prices continue to decrease (short version)

    Gasoline and Diesel Fuel Update (EIA)

    short version) The U.S. average retail price for regular gasoline fell to $3.35 a gallon on Monday. That's down 1.3 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  16. U.S. gasoline prices continue to decrease (short version)

    Gasoline and Diesel Fuel Update (EIA)

    short version) The U.S. average retail price for regular gasoline fell to $3.27 a gallon on Monday. That's down 2.9 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  17. U.S. gasoline prices continue to increase (short version)

    Gasoline and Diesel Fuel Update (EIA)

    increase (short version) The U.S. average retail price for regular gasoline rose to $2.66 a gallon on Monday. That's up 9.4 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  18. U.S. gasoline prices continue to increase (short version)

    Gasoline and Diesel Fuel Update (EIA)

    short version) The U.S. average retail price for regular gasoline rose to $3.68 a gallon on Monday. That's up 4 1/2 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  19. U.S. gasoline prices continue to increase (short version)

    Gasoline and Diesel Fuel Update (EIA)

    short version) The U.S. average retail price for regular gasoline fell to $3.63 a gallon on Monday. That's down 1.4 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  20. U.S. gasoline prices continue to increase (short version)

    Gasoline and Diesel Fuel Update (EIA)

    short version) The U.S. average retail price for regular gasoline fell to $3.56 a gallon on Monday. That's down 7.1 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  1. U.S. gasoline prices continue to increase (short version)

    Gasoline and Diesel Fuel Update (EIA)

    short version) The U.S. average retail price for regular gasoline fell to $3.55 a gallon on Monday. That's down 1.1 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  2. U.S. gasoline prices continue to increase (short version)

    Gasoline and Diesel Fuel Update (EIA)

    short version) The U.S. average retail price for regular gasoline rose to $3.61 a gallon on Labor Day Monday. That's up 5.6 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  3. U.S. gasoline prices continue to increase (short version)

    Gasoline and Diesel Fuel Update (EIA)

    short version) The U.S. average retail price for regular gasoline rose to $3.29 a gallon on Monday. That's up 7.4 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  4. U.S. gasoline prices continues to decrease (short version)

    Gasoline and Diesel Fuel Update (EIA)

    short version) The U.S. average retail price for regular gasoline fell to $2.33 a gallon on Monday. That's down 4.8 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  5. U.S. gasoline prices decrease (short version)

    Gasoline and Diesel Fuel Update (EIA)

    short version) The U.S. average retail price for regular gasoline fell to $2.28 a gallon on Monday. That's down 6 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  6. U.S. gasoline prices decrease (short version)

    Gasoline and Diesel Fuel Update (EIA)

    (short version) The U.S. average retail price for regular gasoline fell to $2.18 a gallon on Monday. That's down 5.7 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  7. U.S. gasoline prices increase (short version)

    Gasoline and Diesel Fuel Update (EIA)

    short version) The U.S. average retail price for regular gasoline rose to $2.03 a gallon on Monday. That's up 8- tenths of a penny from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  8. U.S. gasoline prices increase slightly (short version)

    Gasoline and Diesel Fuel Update (EIA)

    short version) The U.S. average retail price for regular gasoline rose slightly to $3.55 a gallon on Monday. That's up 2-tenths of a penny from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  9. U.S. gasoline prices increase slightly (short version)

    Gasoline and Diesel Fuel Update (EIA)

    short version) The U.S. average retail price for regular gasoline rose slightly to $3.36 a gallon on Monday. That's up 6-tenths of a penny from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  10. U.S. Gasoline and Diesel Retail Prices

    U.S. Energy Information Administration (EIA) Indexed Site

    Gasoline - All Grades 2.462 2.387 2.260 2.144 2.057 1.872 1993-2016 All Grades - Conventional Areas 2.369 2.325 2.188 2.052 1.949 1.788 1994-2016 All Grades - Reformulated Areas ...

  11. Gasoline prices continue to decrease nationally (short version)

    Gasoline and Diesel Fuel Update (EIA)

    short version) The U.S. average retail price for regular gasoline fell to $3.58 a gallon on Monday. That's down 4.9 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  12. Table 35. Refiner Motor Gasoline Prices by Grade, Sales Type...

    U.S. Energy Information Administration (EIA) Indexed Site

    71.8 W 70.5 78.9 W 76.0 83.6 W 69.2 75.2 See footnotes at end of table. 35. Refiner Motor Gasoline Prices by Grade, Sales Type, PAD District and State 176 Energy Information...

  13. Table 35. Refiner Motor Gasoline Prices by Grade, Sales Type...

    U.S. Energy Information Administration (EIA) Indexed Site

    W 68.4 70.8 W W 78.6 W 85.7 81.8 W 69.3 73.8 See footnotes at end of table. 35. Refiner Motor Gasoline Prices by Grade, Sales Type, PAD District and State 176 Energy Information...

  14. Table 34. Reformulated Motor Gasoline Prices by Grade, Sales...

    U.S. Energy Information Administration (EIA) Indexed Site

    61.5 70.8 92.7 90.7 81.5 72.8 - 78.0 See footnotes at end of table. 34. Reformulated Motor Gasoline Prices by Grade, Sales Type, PAD District, and State 146 Energy Information...

  15. Table 34. Reformulated Motor Gasoline Prices by Grade, Sales...

    U.S. Energy Information Administration (EIA) Indexed Site

    62.6 71.7 92.3 89.9 82.6 72.7 - 78.2 See footnotes at end of table. 34. Reformulated Motor Gasoline Prices by Grade, Sales Type, PAD District, and State 146 Energy Information...

  16. Fact #569: May 4, 2009 Gasoline Prices Around the World | Department of

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

    Energy 9: May 4, 2009 Gasoline Prices Around the World Fact #569: May 4, 2009 Gasoline Prices Around the World A survey of worldwide gasoline prices for February and March, 2009, shows that European countries had the highest prices for gasoline with the Netherlands topping the list at $6.25 per gallon. The price for gasoline in the United States was about one third as much as northern European nations. Petroleum producing nations with government-controlled pricing such as Venezuela and Iran

  17. Fact #639: September 6, 2010 Gasoline Tax Rates by State | Department of

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

    Energy 9: September 6, 2010 Gasoline Tax Rates by State Fact #639: September 6, 2010 Gasoline Tax Rates by State The Federal Excise Tax on motor gasoline is 18.4 cents per gallon for all states. Each state applies additional taxes which vary from state to state. As of July 2010, Alaska had the lowest overall tax rate for gasoline at 26.4 cents per gallon while California had the highest tax rate at 67.4 cents per gallon. The national average was 47.7 cents per gallon. Gasoline Tax Rates by

  18. Fact #675: May 16, 2011 Gasoline Prices by Region, May 2, 2011 | Department

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

    of Energy 5: May 16, 2011 Gasoline Prices by Region, May 2, 2011 Fact #675: May 16, 2011 Gasoline Prices by Region, May 2, 2011 The West Coast region paid the highest prices for gasoline averaging $4.14 for a gallon of regular gasoline while the Rocky Mountain region paid the least at $3.70 per gallon. The southern states, including the Gulf Coast Region and the Lower Atlantic region, paid less than the states in the Midwest, Central Atlantic and New England regions where gasoline was about

  19. Fact #890: September 14, 2015 Gasoline Prices Are Affected by Changes in

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

    Refinery Output | Department of Energy 0: September 14, 2015 Gasoline Prices Are Affected by Changes in Refinery Output Fact #890: September 14, 2015 Gasoline Prices Are Affected by Changes in Refinery Output SUBSCRIBE to the Fact of the Week Most of the nation has enjoyed average gasoline prices below $3.00 per gallon since the beginning of 2015. California and the rest of the West Coast, however, have experienced higher gasoline prices than the rest of the nation. Although gasoline price

  20. Fact #900: November 23, 2015 States Tax Gasoline at Varying Rates |

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

    Department of Energy 0: November 23, 2015 States Tax Gasoline at Varying Rates Fact #900: November 23, 2015 States Tax Gasoline at Varying Rates SUBSCRIBE to the Fact of the Week In addition to the 18.4 cents per gallon federal gasoline tax, the states also tax gasoline at varying rates and for varying reasons. Some states have sales taxes added to gasoline taxes while others have inspection fees, environmental fees, leaking underground storage tank (LUST) taxes, etc. The Federation of Tax

  1. Gasoline price forecast to stay below 3 dollar a gallon in 2015

    Gasoline and Diesel Fuel Update (EIA)

    Gasoline price forecast to stay below $3 a gallon in 2015 The national average pump price of gasoline is expected to stay below $3 per gallon during 2015. In its new monthly forecast, the U.S. Energy Information Administration said the retail price for regular gasoline should average $2.33 per gallon this year. The price of gasoline increased in early February after falling for 17 weeks in a row. But gasoline prices will continue to remain low in 2015 when compared with pump prices in recent

  2. Biofuel Facts for the Road: The Energy Department and Your Gasoline Pump |

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

    Department of Energy Biofuel Facts for the Road: The Energy Department and Your Gasoline Pump Biofuel Facts for the Road: The Energy Department and Your Gasoline Pump November 24, 2015 - 11:05am Addthis Biofuel Facts for the Road: The Energy Department and Your Gasoline Pump The “Contains 10% ethanol” label means that ethanol has been blended into the petroleum gasoline—10% ethanol and 90% petroleum gasoline. The "Contains 10% ethanol" label means that ethanol has

  3. Application of Hydrogen Assisted Lean Operation to Natural Gas-Fueled Reciprocating Engines (HALO)

    SciTech Connect (OSTI)

    Chad Smutzer

    2006-01-01

    Two key challenges facing Natural Gas Engines used for cogeneration purposes are spark plug life and high NOx emissions. Using Hydrogen Assisted Lean Operation (HALO), these two keys issues are simultaneously addressed. HALO operation, as demonstrated in this project, allows stable engine operation to be achieved at ultra-lean (relative air/fuel ratios of 2) conditions, which virtually eliminates NOx production. NOx values of 10 ppm (0.07 g/bhp-hr NO) for 8% (LHV H2/LHV CH4) supplementation at an exhaust O2 level of 10% were demonstrated, which is a 98% NOx emissions reduction compared to the leanest unsupplemented operating condition. Spark ignition energy reduction (which will increase ignition system life) was carried out at an oxygen level of 9%, leading to a NOx emission level of 28 ppm (0.13 g/bhp-hr NO). The spark ignition energy reduction testing found that spark energy could be reduced 22% (from 151 mJ supplied to the coil) with 13% (LHV H2/LHV CH4) hydrogen supplementation, and even further reduced 27% with 17% hydrogen supplementation, with no reportable effect on NOx emissions for these conditions and with stable engine torque output. Another important result is that the combustion duration was shown to be only a function of hydrogen supplementation, not a function of ignition energy (until the ignitability limit was reached). The next logical step leading from these promising results is to see how much the spark energy reduction translates into increase in spark plug life, which may be accomplished by durability testing.

  4. Effects of gasoline reactivity and ethanol content on boosted premixed and partially stratified low-temperature gasoline combustion (LTGC)

    SciTech Connect (OSTI)

    Dec, John E.; Yang, Yi; Ji, Chunsheng; Dernotte, Jeremie

    2015-04-14

    Low-temperature gasoline combustion (LTGC), based on the compression ignition of a premixed or partially premixed dilute charge, can provide thermal efficiencies (TE) and maximum loads comparable to those of turbo-charged diesel engines, and ultra-low NOx and particulate emissions. Intake boosting is key to achieving high loads with dilute combustion, and it also enhances the fuel's autoignition reactivity, reducing the required intake heating or hot residuals. These effects have the advantages of increasing TE and charge density, allowing greater timing retard with good stability, and making the fuel ?- sensitive so that partial fuel stratification (PFS) can be applied for higher loads and further TE improvements. However, at high boost the autoignition reactivity enhancement can become excessive, and substantial amounts of EGR are required to prevent overly advanced combustion. Accordingly, an experimental investigation has been conducted to determine how the tradeoff between the effects of intake boost varies with fuel-type and its impact on load range and TE. Five fuels are investigated: a conventional AKI=87 petroleum-based gasoline (E0), and blends of 10 and 20% ethanol with this gasoline to reduce its reactivity enhancement with boost (E10 and E20). Furthermore, a second zero-ethanol gasoline with AKI=93 (matching that of E20) was also investigated (CF-E0), and some neat ethanol data are also reported.

  5. Effects of gasoline reactivity and ethanol content on boosted premixed and partially stratified low-temperature gasoline combustion (LTGC)

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

    Dec, John E.; Yang, Yi; Ji, Chunsheng; Dernotte, Jeremie

    2015-04-14

    Low-temperature gasoline combustion (LTGC), based on the compression ignition of a premixed or partially premixed dilute charge, can provide thermal efficiencies (TE) and maximum loads comparable to those of turbo-charged diesel engines, and ultra-low NOx and particulate emissions. Intake boosting is key to achieving high loads with dilute combustion, and it also enhances the fuel's autoignition reactivity, reducing the required intake heating or hot residuals. These effects have the advantages of increasing TE and charge density, allowing greater timing retard with good stability, and making the fuel Φ- sensitive so that partial fuel stratification (PFS) can be applied for highermore » loads and further TE improvements. However, at high boost the autoignition reactivity enhancement can become excessive, and substantial amounts of EGR are required to prevent overly advanced combustion. Accordingly, an experimental investigation has been conducted to determine how the tradeoff between the effects of intake boost varies with fuel-type and its impact on load range and TE. Five fuels are investigated: a conventional AKI=87 petroleum-based gasoline (E0), and blends of 10 and 20% ethanol with this gasoline to reduce its reactivity enhancement with boost (E10 and E20). Furthermore, a second zero-ethanol gasoline with AKI=93 (matching that of E20) was also investigated (CF-E0), and some neat ethanol data are also reported.« less

  6. Fact #858 February 2, 2015 Retail Gasoline Prices in 2014 Experienced the Largest Decline since 2008 – Dataset

    Broader source: Energy.gov [DOE]

    Excel file with dataset for Retail Gasoline Prices in 2014 Experienced the Largest Decline since 2008

  7. Three-Dimensional Composite Nanostructures for Lean NOx Emission Control

    SciTech Connect (OSTI)

    Gao, Pu-Xian

    2013-07-31

    This final report to the Department of Energy (DOE) and National Energy Technology Laboratory (NETL) for DE-EE0000210 covers the period from October 1, 2009 to July 31, 2013. Under this project, DOE awarded UConn about $1,248,242 to conduct the research and development on a new class of 3D composite nanostructure based catalysts for lean NOx emission control. Much of the material presented here has already been submitted to DOE/NETL in quarterly technical reports. In this project, through a scalable solution process, we have successfully fabricated a new class of catalytic reactors, i.e., the composite nanostructure array (nano-array) based catalytic converters. These nanocatalysts, distinct from traditional powder washcoat based catalytic converters, directly integrate monolithic substrates together with nanostructures with well-defined size and shape during the scalable hydrothermal process. The new monolithic nanocatalysts are demonstrated to be able to save raw materials including Pt-group metals and support metal oxides by an order of magnitude, while perform well at various oxidation (e.g., CO oxidation and NO oxidation) and reduction reactions (H{sub 2} reduction of NOx) involved in the lean NOx emissions. The size, shape and arrangement of the composite nanostructures within the monolithic substrates are found to be the key in enabling the drastically reduced materials usage while maintaining the good catalytic reactivity in the enabled devices. The further understanding of the reaction kinetics associated with the unique mass transport and surface chemistry behind is needed for further optimizing the design and fabrication of good nanostructure array based catalytic converters. On the other hand, the high temperature stability, hydrothermal aging stability, as well as S-poisoning resistance have been investigated in this project on the nanocatalysts, which revealed promising results toward good chemical and mechanical robustness, as well as S-poisoning resistance. Further investigation is needed for unraveling the understanding, design and selection principles of this new class of nanostructure based monolithic catalysts.

  8. Techno-economic Analysis for the Conversion of Lignocellulosic Biomass to Gasoline via the Methanol-to-Gasoline (MTG) Process

    SciTech Connect (OSTI)

    Jones, Susanne B.; Zhu, Yunhua

    2009-05-01

    Biomass is a renewable energy resource that can be converted into liquid fuel suitable for transportation applications. As a widely available biomass form, lignocellulosic biomass can have a major impact on domestic transportation fuel supplies and thus help meet the Energy Independence and Security Act renewable energy goals (U.S. Congress 2007). With gasification technology, biomass can be converted to gasoline via methanol synthesis and methanol-to-gasoline (MTG) technologies. Producing a gasoline product that is infrastructure ready has much potential. Although the MTG technology has been commercially demonstrated with natural gas conversion, combining MTG with biomass gasification has not been shown. Therefore, a techno-economic evaluation for a biomass MTG process based on currently available technology was developed to provide information about benefits and risks of this technology. The economic assumptions used in this report are consistent with previous U.S. Department of Energy Office of Biomass Programs techno-economic assessments. The feedstock is assumed to be wood chips at 2000 metric ton/day (dry basis). Two kinds of gasification technologies were evaluated: an indirectly-heated gasifier and a directly-heated oxygen-blown gasifier. The gasoline selling prices (2008 USD) excluding taxes were estimated to be $3.20/gallon and $3.68/gallon for indirectly-heated gasified and directly-heated. This suggests that a process based on existing technology is economic only when crude prices are above $100/bbl. However, improvements in syngas cleanup combined with consolidated gasoline synthesis can potentially reduce the capital cost. In addition, improved synthesis catalysts and reactor design may allow increased yield.

  9. 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.

  10. Selective NOx Recirculation for Stationary Lean-Burn Natural Gas Engines

    SciTech Connect (OSTI)

    Nigel N. Clark

    2006-12-31

    Nitric oxide (NO) and nitrogen dioxide (NO2) generated by internal combustion (IC) engines are implicated in adverse environmental and health effects. Even though lean-burn natural gas engines have traditionally emitted lower oxides of nitrogen (NOx) emissions compared to their diesel counterparts, natural gas engines are being further challenged to reduce NOx emissions to 0.1 g/bhp-hr. The Selective NOx Recirculation (SNR) approach for NOx reduction involves cooling the engine exhaust gas and then adsorbing the NOx from the exhaust stream, followed by the periodic desorption of NOx. By sending the desorbed NOx back into the intake and through the engine, a percentage of the NOx can be decomposed during the combustion process. SNR technology has the support of the Department of Energy (DOE), under the Advanced Reciprocating Engine Systems (ARES) program to reduce NOx emissions to under 0.1 g/bhp-hr from stationary natural gas engines by 2010. The NO decomposition phenomenon was studied using two Cummins L10G natural gas fueled spark-ignited (SI) engines in three experimental campaigns. It was observed that the air/fuel ratio ({lambda}), injected NO quantity, added exhaust gas recirculation (EGR) percentage, and engine operating points affected NOx decomposition rates within the engine. Chemical kinetic model predictions using the software package CHEMKIN were performed to relate the experimental data with established rate and equilibrium models. The model was used to predict NO decomposition during lean-burn, stoichiometric burn, and slightly rich-burn cases with added EGR. NOx decomposition rates were estimated from the model to be from 35 to 42% for the lean-burn cases and from 50 to 70% for the rich-burn cases. The modeling results provided an insight as to how to maximize NOx decomposition rates for the experimental engine. Results from this experiment along with chemical kinetic modeling solutions prompted the investigation of rich-burn operating conditions, with added EGR to prevent preignition. It was observed that the relative air/fuel ratio, injected NO quantity, added EGR fraction, and engine operating points affected the NO decomposition rates. While operating under these modified conditions, the highest NO decomposition rate of 92% was observed. In-cylinder pressure data gathered during the experiments showed minimum deviation from peak pressure as a result of NO injections into the engine. A NOx adsorption system, from Sorbent Technologies, Inc., was integrated with the Cummins engine, comprised a NOx adsorbent chamber, heat exchanger, demister, and a hot air blower. Data were gathered to show the possibility of NOx adsorption from the engine exhaust, and desorption of NOx from the sorbent material. In order to quantify the NOx adsorption/desorption characteristics of the sorbent material, a benchtop adsorption system was constructed. The temperature of this apparatus was controlled while data were gathered on the characteristics of the sorbent material for development of a system model. A simplified linear driving force model was developed to predict NOx adsorption into the sorbent material as cooled exhaust passed over fresh sorbent material. A mass heat transfer analysis was conducted to analyze the possibility of using hot exhaust gas for the desorption process. It was found in the adsorption studies, and through literature review, that NO adsorption was poor when the carrier gas was nitrogen, but that NO in the presence of oxygen was adsorbed at levels exceeding 1% by mass of the sorbent. From the three experimental campaigns, chemical kinetic modeling analysis, and the scaled benchtop NOx adsorption system, an overall SNR system model was developed. An economic analysis was completed, and showed that the system was impractical in cost for small engines, but that economies of scale favored the technology.

  11. Northeast Gasoline Supply Reserve | Department of Energy

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

    demonstration. You can use the system to become more familiar with the bidding process in a realistic environment. The Department plans to run simulated one-day sales,...

  12. Chemical kinetic modeling of component mixtures relevant to gasoline

    SciTech Connect (OSTI)

    Mehl, M; Curran, H J; Pitz, W J; Westbrook, C K

    2009-02-13

    Real fuels are complex mixtures of thousands of hydrocarbon compounds including linear and branched paraffins, naphthenes, olefins and aromatics. It is generally agreed that their behavior can be effectively reproduced by simpler fuel surrogates containing a limited number of components. In this work, a recently revised version of the kinetic model by the authors is used to analyze the combustion behavior of several components relevant to gasoline surrogate formulation. Particular attention is devoted to linear and branched saturated hydrocarbons (PRF mixtures), olefins (1-hexene) and aromatics (toluene). Model predictions for pure components, binary mixtures and multi-component gasoline surrogates are compared with recent experimental information collected in rapid compression machine, shock tube and jet stirred reactors covering a wide range of conditions pertinent to internal combustion engines. Simulation results are discussed focusing attention on the mixing effects of the fuel components.

  13. Gasoline Vehicle Exhuast Particle Sampling Study | Department of Energy

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

    Vehicle Exhuast Particle Sampling Study Gasoline Vehicle Exhuast Particle Sampling Study 2003 DEER Conference Presentation: University of Minnesota PDF icon 2003_deer_kittelson.pdf More Documents & Publications Particle Measurement Methodology: Comparison of On-road and Lab Diesel Particle Size Distributions Evaluation of the European PMP Methodologies Using Chassis Dynamometer and On-road Testing of Heavy-duty Vehicles Mass Correlation of Engine Emissions with Spectral Instruments

  14. Woody Biomass Converted to Gasoline by Five-Company Team

    Broader source: Energy.gov [DOE]

    An international consortium of five companies and organizations came together in a joint effort to transform woody biomass, including trees and wood waste, into a gasoline product suitable for use in today’s automobiles. The collaborative project was cost shared between the project participants and the U.S. Department of Energy’s Office of Bioenergy Technologies Office (BETO) using funding provided by the American Recovery and Reinvestment Act.

  15. Process for conversion of lignin to reformulated, partially oxygenated gasoline

    DOE Patents [OSTI]

    Shabtai, Joseph S. (Salt Lake City, UT); Zmierczak, Wlodzimierz W. (Salt Lake City, UT); Chornet, Esteban (Golden, CO)

    2001-01-09

    A high-yield process for converting lignin into reformulated, partially oxygenated gasoline compositions of high quality is provided. The process is a two-stage catalytic reaction process that produces a reformulated, partially oxygenated gasoline product with a controlled amount of aromatics. In the first stage of the process, a lignin feed material is subjected to a base-catalyzed depolymerization reaction, followed by a selective hydrocracking reaction which utilizes a superacid catalyst to produce a high oxygen-content depolymerized lignin product mainly composed of alkylated phenols, alkylated alkoxyphenols, and alkylbenzenes. In the second stage of the process, the depolymerized lignin product is subjected to an exhaustive etherification reaction, optionally followed by a partial ring hydrogenation reaction, to produce a reformulated, partially oxygenated/etherified gasoline product, which includes a mixture of substituted phenyl/methyl ethers, cycloalkyl methyl ethers, C.sub.7 -C.sub.10 alkylbenzenes, C.sub.6 -C.sub.10 branched and multibranched paraffins, and alkylated and polyalkylated cycloalkanes.

  16. Vehicle Technologies Office Merit Review 2015: Advanced Lean-Burn DI Spark Ignition Fuels Research

    Broader source: Energy.gov [DOE]

    Presentation given by Sandia National Laboratory at 2015 DOE Hydrogen and Fuel Cells Program and vehicle technologies office annual merit review and peer evaluation meeting about advanced lean-burn...

  17. Combining Low-Temperature Combustion with Lean-NOx Trap Yields Progress

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

    Toward Targets of Efficient NOx Control for Diesels | Department of Energy Low-Temperature Combustion with Lean-NOx Trap Yields Progress Toward Targets of Efficient NOx Control for Diesels Combining Low-Temperature Combustion with Lean-NOx Trap Yields Progress Toward Targets of Efficient NOx Control for Diesels 2005 Diesel Engine Emissions Reduction (DEER) Conference Presentations and Posters PDF icon 2005_deer_huff.pdf More Documents & Publications Intra-catalyst Reductant Chemistry in

  18. Development of Chemical Kinetic Models for Lean NOx Traps | Department of

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

    Energy 0 DOE Vehicle Technologies and Hydrogen Programs Annual Merit Review and Peer Evaluation Meeting, June 7-11, 2010 -- Washington D.C. PDF icon ace035_larson_2010_o.pdf More Documents & Publications Development of Chemical Kinetic Models for Lean NOx Traps Benchmark Reaction Mechanisms and Kinetics for Lean NOx Traps Mechanisms of Sulfur Poisoning of NOx Adsorber (LNT) Materials

  19. Efficient Emissions Control for Multi-Mode Lean DI Engines | Department of

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

    Energy 0 DOE Vehicle Technologies and Hydrogen Programs Annual Merit Review and Peer Evaluation Meeting, June 7-11, 2010 -- Washington D.C. PDF icon ace031_parks_2010_o.pdf More Documents & Publications Efficient Emissions Control for Multi-Mode Lean DI Engines Measurement and Characterization of Lean NOx Adsorber Regeneration and Desulfation and Controlling NOx from Multi-mode Measurement and Characterization of Unregulated Emissions from Advanced Technologies

  20. 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 gasoline, which is knock-prone at these high CR, in order to maintain compatibility. By using EIVC and LIVC strategies, good efficiency is maintained with gasoline, but power is reduced by about 34%.