National Library of Energy BETA

Sample records for falling water hydrogen

  1. Oconto Falls Water & Light Comm | Open Energy Information

    Open Energy Info (EERE)

    Oconto Falls Water & Light Comm Jump to: navigation, search Name: Oconto Falls Water & Light Comm Place: Wisconsin Phone Number: (920) 846-4507 Website: ofmu.orgaboutus Outage...

  2. Green Lands Blue Water 2014 Fall Conference

    Broader source: Energy.gov [DOE]

    The Green Lands Blue Water 2014 Fall Conference will be held from November 19–20, 2014, at the Richland Community College in Decatur, Illinois. The event will focus on bioenergy and sustainable agriculture and explore topics ranging from logistics, energy conversion technologies, and markets for grass biomass. BETO Sustainability Program Technology Manager Kristen Johnson will be speaking about the Energy Department’s perspective on sustainable bioenergy landscapes and will focus on BETO’s recent work with landscape design. The conference will be November 19–20 only. On November 18, participants may choose to participate in a pre-conference field tour.

  3. Hydrogen Production: Photoelectrochemical Water Splitting

    Broader source: Energy.gov [DOE]

    In photoelectrochemical (PEC) water splitting, hydrogen is produced from water using sunlight and specialized semiconductors called photoelectrochemical materials, which use light energy to directly dissociate water molecules into hydrogen and oxygen.

  4. Hydrogen Production: Thermochemical Water Splitting

    Broader source: Energy.gov [DOE]

    Thermochemical water splitting uses high temperatures—from concentrated solar power or from the waste heat of nuclear power reactions—and chemical reactions to produce hydrogen and oxygen from water.

  5. Process for exchanging hydrogen isotopes between gaseous hydrogen and water

    DOE Patents [OSTI]

    Hindin, Saul G.; Roberts, George W.

    1980-08-12

    A process for exchanging isotopes of hydrogen, particularly tritium, between gaseous hydrogen and water is provided whereby gaseous hydrogen depeleted in tritium and liquid or gaseous water containing tritium are reacted in the presence of a metallic catalyst.

  6. Fall

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

    15! ! Fall Meeting of the Division of Nuclear Physics of the American Physical Society! Convention Center, Santa Fe, NM ! October 28-31, 2015! http://www.lanl.gov/dnp2015! Conference Coordinator: Tel - 630-416-3030! Complete Conference Coordinators, Inc.! 1260 Iroquois Ave., Suite 202! Naperville, Illinois 60563! Local Organizing Committee :! Joe Carlson! Vincenzo Cirigliano! Steven Clayton! Stefano Gandolfi! Marian Jandel! Christopher Lee! Hye Young Lee! Susan Seestrom! Cesar da Silva! Richard

  7. ARM - Field Campaign - Fall 1997 Water Vapor IOP

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

    Water Vapor IOP ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Campaign : Fall 1997 Water Vapor IOP 1997.09.15 - 1997.10.05 Lead Scientist : Henry Revercomb For data sets, see below. Summary The Water Vapor IOP was conducted as a follow-up to a predecessor IOP on water vapor held in September 1996. This IOP relied heavily on both ground-based guest and CART instrumentation and in-situ aircraft and tethered

  8. Water reactive hydrogen fuel cell power system

    DOE Patents [OSTI]

    Wallace, Andrew P; Melack, John M; Lefenfeld, Michael

    2014-11-25

    A water reactive hydrogen fueled power system includes devices and methods to combine reactant fuel materials and aqueous solutions to generate hydrogen. The generated hydrogen is converted in a fuel cell to provide electricity. The water reactive hydrogen fueled power system includes a fuel cell, a water feed tray, and a fuel cartridge to generate power for portable power electronics. The removable fuel cartridge is encompassed by the water feed tray and fuel cell. The water feed tray is refillable with water by a user. The water is then transferred from the water feed tray into the fuel cartridge to generate hydrogen for the fuel cell which then produces power for the user.

  9. Water reactive hydrogen fuel cell power system

    DOE Patents [OSTI]

    Wallace, Andrew P; Melack, John M; Lefenfeld, Michael

    2014-01-21

    A water reactive hydrogen fueled power system includes devices and methods to combine reactant fuel materials and aqueous solutions to generate hydrogen. The generated hydrogen is converted in a fuel cell to provide electricity. The water reactive hydrogen fueled power system includes a fuel cell, a water feed tray, and a fuel cartridge to generate power for portable power electronics. The removable fuel cartridge is encompassed by the water feed tray and fuel cell. The water feed tray is refillable with water by a user. The water is then transferred from the water feed tray into a fuel cartridge to generate hydrogen for the fuel cell which then produces power for the user.

  10. Turning Sun and Water Into Hydrogen Fuel

    Broader source: Energy.gov [DOE]

    In a key step towards advancing a clean energy economy, scientists have engineered a cheap, abundant way to make hydrogen fuel from sunlight and water.

  11. Hydrogen and water reactor safety: proceedings

    SciTech Connect (OSTI)

    Not Available

    1982-01-01

    Separate abstracts were prepared for papers presented in the following areas of interest: 1) hydrogen research programs; 2) hydrogen behavior during light water reactor accidents; 3) combustible gas generation; 4) hydrogen transport and mixing; 5) combustion modeling and experiments; 6) accelerated flames and detonations; 7) combustion mitigation and control; and 8) equipment survivability.

  12. Hydrogen Production by Water Biophotolysis

    SciTech Connect (OSTI)

    Ghirardi, Maria L.; King, Paul W.; Mulder, David W.; Eckert, Carrie; Dubini, Alexandra; Maness, Pin-Ching; Yu, Jianping

    2014-01-22

    The use of microalgae for production of hydrogen gas from water photolysis has been studied for many years, but its commercialization is still limited by multiple challenges. Most of the barriers to commercialization are attributed to the existence of biological regulatory mechanisms that, under anaerobic conditions, quench the absorbed light energy, down-regulate linear electron transfer, inactivate the H2-producing enzyme, and compete for electrons with the hydrogenase. Consequently, the conversion efficiency of absorbed photons into H2 is significantly lower than its estimated potential of 1213 %. However, extensive research continues towards addressing these barriers by either trying to understand and circumvent intracellular regulatory mechanisms at the enzyme and metabolic level or by developing biological systems that achieve prolonged H2 production albeit under lower than 1213 % solar conversion efficiency. This chapter describes the metabolic pathways involved in biological H2 photoproduction from water photolysis, the attributes of the two hydrogenases, [FeFe] and [NiFe], that catalyze biological H2 production, and highlights research related to addressing the barriers described above. These highlights include: (a) recent advances in improving our understanding of the O2 inactivation mechanism in different classes of hydrogenases; (b) progress made in preventing competitive pathways from diverting electrons from H2 photoproduction; and (c) new developments in bypassing the non-dissipated proton gradient from down-regulating photosynthetic electron transfer. As an example of a major success story, we mention the generation of truncated-antenna mutants in Chlamydomonas and Synechocystis that address the inherent low-light saturation of photosynthesis. In addition, we highlight the rationale and progress towards coupling biological hydrogenases to non-biological, photochemical charge-separation as a means to bypass the barriers of photobiological systems.

  13. Hydrogen isotope separation from water

    DOE Patents [OSTI]

    Jensen, R.J.

    1975-09-01

    A process for separating tritium from tritium-containing water or deuterium enrichment from water is described. The process involves selective, laser-induced two-photon excitation and photodissociation of those water molecules containing deuterium or tritium followed by immediate reaction of the photodissociation products with a scavenger gas which does not substantially absorb the laser light. The reaction products are then separated from the undissociated water. (auth)

  14. Comparison of Water-Hydrogen Catalytic Exchange Processes vs...

    Office of Environmental Management (EM)

    at Tritium Focus Group Meeting, April 22-24, 2014, Aiken, SC COMPARISON OF WATER-HYDROGEN CATALYTIC EXCHANGE PROCESSES VERSUS WATER DISTILLATION FOR WATER DETRITIATION A. Busigin,...

  15. Hydrogen production by the decomposition of water

    DOE Patents [OSTI]

    Hollabaugh, Charles M.; Bowman, Melvin G.

    1981-01-01

    How to produce hydrogen from water was a problem addressed by this invention. The solution employs a combined electrolytical-thermochemical sulfuric acid process. Additionally, high purity sulfuric acid can be produced in the process. Water and SO.sub.2 react in electrolyzer (12) so that hydrogen is produced at the cathode and sulfuric acid is produced at the anode. Then the sulfuric acid is reacted with a particular compound M.sub.r X.sub.s so as to form at least one water insoluble sulfate and at least one water insoluble oxide of molybdenum, tungsten, or boron. Water is removed by filtration; and the sulfate is decomposed in the presence of the oxide in sulfate decomposition zone (21), thus forming SO.sub.3 and reforming M.sub.r X.sub.s. The M.sub.r X.sub.s is recycled to sulfate formation zone (16). If desired, the SO.sub.3 can be decomposed to SO.sub.2 and O.sub.2 ; and the SO.sub.2 can be recycled to electrolyzer (12) to provide a cycle for producing hydrogen.

  16. Reaction of Aluminum with Water to Produce Hydrogen: A Study...

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

    A Study of Issues Related to the Use of Aluminum for On-Board Vehicular Hydrogen Storage. Version 2, 2010. Reaction of Aluminum with Water to Produce Hydrogen: A Study of...

  17. DOE Technical Targets for Hydrogen Production from Thermochemical Water

    Energy Savers [EERE]

    Splitting | Department of Energy from Thermochemical Water Splitting DOE Technical Targets for Hydrogen Production from Thermochemical Water Splitting These tables list the U.S. Department of Energy (DOE) technical targets and example cost and performance parameter values that achieve the targets for hydrogen production from thermochemical water splitting. More information about targets can be found in the Hydrogen Production section of the Fuel Cell Technologies Office's Multi-Year

  18. Process for the production of hydrogen from water

    DOE Patents [OSTI]

    Miller, William E. (Naperville, IL); Maroni, Victor A. (Naperville, IL); Willit, James L. (Batavia, IL)

    2010-05-25

    A method and device for the production of hydrogen from water and electricity using an active metal alloy. The active metal alloy reacts with water producing hydrogen and a metal hydroxide. The metal hydroxide is consumed, restoring the active metal alloy, by applying a voltage between the active metal alloy and the metal hydroxide. As the process is sustainable, only water and electricity is required to sustain the reaction generating hydrogen.

  19. Energetics of Hydrogen Bond Network Rearrangements in Liquid Water

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

    Energetics of Hydrogen Bond Network Rearrangements in Liquid Water Energetics of Hydrogen Bond Network Rearrangements in Liquid Water Print Wednesday, 25 May 2005 00:00 The unique chemical and physical properties of liquid water are thought to result from the highly directional hydrogen bonding (H-bonding) network structure and its associated dynamics. However, despite intense experimental and theoretical scrutiny, a complete description of this structure has been elusive. Recently, with the

  20. Hydrogen and Water: An Engineering, Economic and Environmental Analysis

    SciTech Connect (OSTI)

    Simon, A J; Daily, W; White, R G

    2010-01-06

    The multi-year program plan for the Department of Energy's Hydrogen and Fuel Cells Technology Program (USDOE, 2007a) calls for the development of system models to determine economic, environmental and cross-cutting impacts of the transition to a hydrogen economy. One component of the hydrogen production and delivery chain is water; water's use and disposal can incur costs and environmental consequences for almost any industrial product. It has become increasingly clear that due to factors such as competing water demands and climate change, the potential for a water-constrained world is real. Thus, any future hydrogen economy will need to be constructed so that any associated water impacts are minimized. This, in turn, requires the analysis and comparison of specific hydrogen production schemes in terms of their water use. Broadly speaking, two types of water are used in hydrogen production: process water and cooling water. In the production plant, process water is used as a direct input for the conversion processes (e.g. steam for Steam Methane Reforming {l_brace}SMR{r_brace}, water for electrolysis). Cooling water, by distinction, is used indirectly to cool related fluids or equipment, and is an important factor in making plant processes efficient and reliable. Hydrogen production further relies on water used indirectly to generate other feedstocks required by a hydrogen plant. This second order indirect water is referred to here as 'embedded' water. For example, electricity production uses significant quantities of water; this 'thermoelectric cooling' contributes significantly to the total water footprint of the hydrogen production chain. A comprehensive systems analysis of the hydrogen economy includes the aggregate of the water intensities from every step in the production chain including direct, indirect, and embedded water. Process and cooling waters have distinct technical quality requirements. Process water, which is typically high purity (limited dissolved solids) is used inside boilers, reactors or electrolyzers because as it changes phase or is consumed, it leaves very little residue behind. Pre-treatment of 'raw' source water to remove impurities not only enables efficient hydrogen production, but also reduces maintenance costs associated with component degradation due to those impurities. Cooling water has lower overall quality specifications, though it is required in larger volumes. Cooling water has distinct quality requirements aimed at preserving the cooling equipment by reducing scaling and fouling from untreated water. At least as important as the quantity, quality and cost of water inputs to a process are the quantity, quality and cost of water discharge. In many parts of the world, contamination from wastewater streams is a far greater threat to water supply than scarcity or drought (Brooks, 2002). Wastewater can be produced during the pre-treatment processes for process and cooling water, and is also sometimes generated during the hydrogen production and cooling operations themselves. Wastewater is, by definition, lower quality than supply water. Municipal wastewater treatment facilities can handle some industrial wastewaters; others must be treated on-site or recycled. Any of these options can incur additional cost and/or complexity. DOE's 'H2A' studies have developed cost and energy intensity estimates for a variety of hydrogen production pathways. These assessments, however, have not focused on the details of water use, treatment and disposal. As a result, relatively coarse consumption numbers have been used to estimate water intensities. The water intensity for hydrogen production ranges between 1.5-40 gallons per kilogram of hydrogen, including the embedded water due to electricity consumption and considering the wide variety of hydrogen production, water treatment, and cooling options. Understanding the consequences of water management choices enables stakeholders to make informed decisions regarding water use. Water is a fundamentally regional commodity. Water resources vary in quality and qu

  1. Hydrogen production by the decomposition of water

    DOE Patents [OSTI]

    Hollabaugh, C.M.; Bowman, M.G.

    A process is described for the production of hydrogen from water by a sulfuric acid process employing electrolysis and thermo-chemical decomposition. The water containing SO/sub 2/ is electrolyzed to produce H/sub 2/ at the cathode and to oxidize the SO/sub 2/ to form H/sub 2/SO/sub 4/ at the anode. After the H/sub 2/ has been separated, a compound of the type M/sub r/X/sub s/ is added to produce a water insoluble sulfate of M and a water insoluble oxide of the metal in the radical X. In the compound M/sub r/X/sub s/, M is at least one metal selected from the group consisting of Ba/sup 2 +/, Ca/sup 2 +/, Sr/sup 2 +/, La/sup 2 +/, and Pb/sup 2 +/; X is at least one radical selected from the group consisting of molybdate (MoO/sub 4//sup 2 -/), tungstate (WO/sub 4//sup 2 -/), and metaborate (BO/sub 2//sup 1 -/); and r and s are either 1, 2, or 3 depending upon the valence of M and X. The precipitated mixture is filtered and heated to a temperature sufficiently high to form SO/sub 3/ gas and to reform M/sub r/X/sub s/. The SO/sub 3/ is dissolved in a small amount of H/sub 2/O to produce concentrated H/sub 2/SO/sub 4/, and the M/sub r/X/sub s/ is recycled to the process. Alternatively, the SO/sub 3/ gas can be recycled to the beginning of the process to provide a continuous process for the production of H/sub 2/ in which only water need be added in a substantial amount. (BLM)

  2. Process for hydrogen isotope concentration between liquid water and hydrogen gas

    DOE Patents [OSTI]

    Stevens, William H.

    1976-09-21

    A process for hydrogen isotope exchange and concentration between liquid water and hydrogen gas, wherein liquid water and hydrogen gas are contacted, in an exchange section, with one another and with at least one catalyst body comprising at least one metal selected from Group VIII of the Periodic Table and preferably a support therefor, the catalyst body has a liquid-water-repellent, gas permeable polymer or organic resin coating, preferably a fluorinated olefin polymer or silicone coating, so that the isotope concentration takes place by two simultaneously occurring steps, namely, ##EQU1## WHILE THE HYDROGEN GAS FED TO THE EXCHANGE SECTION IS DERIVED IN A REACTOR VESSEL FROM LIQUID WATER THAT HAS PASSED THROUGH THE EXCHANGE SECTION.

  3. Reaction of Aluminum with Water to Produce Hydrogen - 2010 Update

    Fuel Cell Technologies Publication and Product Library (EERE)

    A Study of Issues Related to the Use of Aluminum for On-Board Vehicular Hydrogen Storage The purpose of this White Paper is to describe and evaluate the potential of aluminum-water reactions for the

  4. Energetics of Hydrogen Bond Network Rearrangements in Liquid Water

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

    Energetics of Hydrogen Bond Network Rearrangements in Liquid Water Print The unique chemical and physical properties of liquid water are thought to result from the highly directional hydrogen bonding (H-bonding) network structure and its associated dynamics. However, despite intense experimental and theoretical scrutiny, a complete description of this structure has been elusive. Recently, with the help of their novel liquid microjet apparatus, a University of California, Berkeley, group derived

  5. Energetics of Hydrogen Bond Network Rearrangements in Liquid Water

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

    Energetics of Hydrogen Bond Network Rearrangements in Liquid Water Print The unique chemical and physical properties of liquid water are thought to result from the highly directional hydrogen bonding (H-bonding) network structure and its associated dynamics. However, despite intense experimental and theoretical scrutiny, a complete description of this structure has been elusive. Recently, with the help of their novel liquid microjet apparatus, a University of California, Berkeley, group derived

  6. Energetics of Hydrogen Bond Network Rearrangements in Liquid Water

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

    Energetics of Hydrogen Bond Network Rearrangements in Liquid Water Print The unique chemical and physical properties of liquid water are thought to result from the highly directional hydrogen bonding (H-bonding) network structure and its associated dynamics. However, despite intense experimental and theoretical scrutiny, a complete description of this structure has been elusive. Recently, with the help of their novel liquid microjet apparatus, a University of California, Berkeley, group derived

  7. Energetics of Hydrogen Bond Network Rearrangements in Liquid Water

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

    Energetics of Hydrogen Bond Network Rearrangements in Liquid Water Print The unique chemical and physical properties of liquid water are thought to result from the highly directional hydrogen bonding (H-bonding) network structure and its associated dynamics. However, despite intense experimental and theoretical scrutiny, a complete description of this structure has been elusive. Recently, with the help of their novel liquid microjet apparatus, a University of California, Berkeley, group derived

  8. Energetics of Hydrogen Bond Network Rearrangements in Liquid Water

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

    Energetics of Hydrogen Bond Network Rearrangements in Liquid Water Print The unique chemical and physical properties of liquid water are thought to result from the highly directional hydrogen bonding (H-bonding) network structure and its associated dynamics. However, despite intense experimental and theoretical scrutiny, a complete description of this structure has been elusive. Recently, with the help of their novel liquid microjet apparatus, a University of California, Berkeley, group derived

  9. Energetics of Hydrogen Bond Network Rearrangements in Liquid Water

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

    Energetics of Hydrogen Bond Network Rearrangements in Liquid Water Print The unique chemical and physical properties of liquid water are thought to result from the highly directional hydrogen bonding (H-bonding) network structure and its associated dynamics. However, despite intense experimental and theoretical scrutiny, a complete description of this structure has been elusive. Recently, with the help of their novel liquid microjet apparatus, a University of California, Berkeley, group derived

  10. Energetics of Hydrogen Bond Network Rearrangements in Liquid Water

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

    Energetics of Hydrogen Bond Network Rearrangements in Liquid Water Print The unique chemical and physical properties of liquid water are thought to result from the highly directional hydrogen bonding (H-bonding) network structure and its associated dynamics. However, despite intense experimental and theoretical scrutiny, a complete description of this structure has been elusive. Recently, with the help of their novel liquid microjet apparatus, a University of California, Berkeley, group derived

  11. Hydrogen production from water: Recent advances in photosynthesis research

    SciTech Connect (OSTI)

    Greenbaum, E.; Lee, J.W.

    1997-12-31

    The great potential of hydrogen production by microalgal water splitting is predicated on quantitative measurement of the algae`s hydrogen-producing capability, which is based on the following: (1) the photosynthetic unit size of hydrogen production; (2) the turnover time of photosynthetic hydrogen production; (3) thermodynamic efficiencies of conversion of light energy into the Gibbs free energy of molecular hydrogen; (4) photosynthetic hydrogen production from sea water using marine algae; (5) the potential for research advances using modern methods of molecular biology and genetic engineering to maximize hydrogen production. ORNL has shown that sustained simultaneous photoevolution of molecular hydrogen and oxygen can be performed with mutants of the green alga Chlamydomonas reinhardtii that lack a detectable level of the Photosystem I light reaction. This result is surprising in view of the standard two-light reaction model of photosynthesis and has interesting scientific and technological implications. This ORNL discovery also has potentially important implications for maximum thermodynamic conversion efficiency of light energy into chemical energy by green plant photosynthesis. Hydrogen production performed by a single light reaction, as opposed to two, implies a doubling of the theoretically maximum thermodynamic conversion efficiency from {approx}10% to {approx}20%.

  12. Molecular cobalt pentapyridine catalysts for generating hydrogen from water

    DOE Patents [OSTI]

    Long, Jeffrey R; Chang, Christopher J; Sun, Yujie

    2013-11-05

    A composition of matter suitable for the generation of hydrogen from water is described, the positively charged cation of the composition including the moiety of the general formula. [(PY5Me.sub.2)CoL].sup.2+, where L can be H.sub.2O, OH.sup.-, a halide, alcohol, ether, amine, and the like. In embodiments of the invention, water, such as tap water or sea water can be subject to low electric potentials, with the result being, among other things, the generation of hydrogen.

  13. Comparison of Water-Hydrogen Catalytic Exchange Processes vs. Water Distillation for Water Detritiation

    Office of Environmental Management (EM)

    at Tritium Focus Group Meeting, April 22-24, 2014, Aiken, SC COMPARISON OF WATER-HYDROGEN CATALYTIC EXCHANGE PROCESSES VERSUS WATER DISTILLATION FOR WATER DETRITIATION A. Busigin, Ph.D., P.Eng. April 22, 2014 NITEK USA, Inc. 8439 Leeward Air Ranch CIR Ocala, FL 34472-9261 U.S.A. Tel: (352) 537-0864 Email: abusigin@nitek.com Presentation Objectives Presented at Tritium Focus Group Meeting, April 22-24, 2014, Aiken, SC 2 * Principles of operation - Elementary separation factors * Historical

  14. Controlled Hydrogen Fleet and Infrastructure Demonstration and Validation Project: Fall 2009; Composite Data Products, Final Version September 11, 2009

    SciTech Connect (OSTI)

    Wipke, K.; Sprik, S.; Kurtz, J.; Ramsden, T.

    2009-09-01

    Graphs of composite data products produced by DOE's Controlled Hydrogen Fleet and Infrastructure Demonstration and Validation project through September 2009.

  15. Electrokinetic Hydrogen Generation from Liquid WaterMicrojets

    SciTech Connect (OSTI)

    Duffin, Andrew M.; Saykally, Richard J.

    2007-05-31

    We describe a method for generating molecular hydrogen directly from the charge separation effected via rapid flow of liquid water through a metal orifice, wherein the input energy is the hydrostatic pressure times the volume flow rate. Both electrokinetic currents and hydrogen production rates are shown to follow simple equations derived from the overlap of the fluid velocity gradient and the anisotropic charge distribution resulting from selective adsorption of hydroxide ions to the nozzle surface. Pressure-driven fluid flow shears away the charge balancing hydronium ions from the diffuse double layer and carries them out of the aperture. Downstream neutralization of the excess protons at a grounded target electrode produces gaseous hydrogen molecules. The hydrogen production efficiency is currently very low (ca. 10-6) for a single cylindrical jet, but can be improved with design changes.

  16. DOE Technical Targets for Hydrogen Production from Photoelectrochemical Water Splitting

    Broader source: Energy.gov [DOE]

    These tables list the U.S. Department of Energy (DOE) technical targets and example cost and performance parameter values that achieve the targets for hydrogen production from photoelectrochemical water splitting. The tables are organized into separate sections for photoelectrode systems and dual bed photocatalyst systems.

  17. Molecular metal-Oxo catalysts for generating hydrogen from water

    DOE Patents [OSTI]

    Long, Jeffrey R; Chang, Christopher J; Karunadasa, Hemamala I

    2015-02-24

    A composition of matter suitable for the generation of hydrogen from water is described, the positively charged cation of the composition having the general formula [(PY5W.sub.2)MO].sup.2+, wherein PY5W.sub.2 is (NC.sub.5XYZ)(NC.sub.5H.sub.4).sub.4C.sub.2W.sub.2, M is a transition metal, and W, X, Y, and Z can be H, R, a halide, CF.sub.3, or SiR.sub.3, where R can be an alkyl or aryl group. The two accompanying counter anions, in one embodiment, can be selected from the following Cl.sup.-, I.sup.-, PF.sub.6.sup.-, and CF.sub.3SO.sub.3.sup.-. In embodiments of the invention, water, such as tap water containing electrolyte or straight sea water can be subject to an electric potential of between 1.0 V and 1.4 V relative to the standard hydrogen electrode, which at pH 7 corresponds to an overpotential of 0.6 to 1.0 V, with the result being, among other things, the generation of hydrogen with an optimal turnover frequency of ca. 1.5 million mol H.sub.2/mol catalyst per h.

  18. Current (2009) State-of-the-Art Hydrogen Production Cost Estimate Using Water Electrolysis

    SciTech Connect (OSTI)

    none,

    2009-09-01

    This independent review examines DOE cost targets for state-of-the art hydrogen production using water electrolysis.

  19. Current (2009) State-of-the-Art Hydrogen Production Cost Estimate Using Water Electrolysis: Independent Review

    SciTech Connect (OSTI)

    Not Available

    2009-09-01

    This independent review examines DOE cost targets for state-of-the art hydrogen production using water electrolysis.

  20. Method of generating hydrogen by catalytic decomposition of water

    DOE Patents [OSTI]

    Balachandran, Uthamalingam (Hinsdale, IL); Dorris, Stephen E. (LaGrange Park, IL); Bose, Arun C. (Pittsburgh, PA); Stiegel, Gary J. (Library, PA); Lee, Tae-Hyun (Naperville, IL)

    2002-01-01

    A method for producing hydrogen includes providing a feed stream comprising water; contacting at least one proton conducting membrane adapted to interact with the feed stream; splitting the water into hydrogen and oxygen at a predetermined temperature; and separating the hydrogen from the oxygen. Preferably the proton conducting membrane comprises a proton conductor and a second phase material. Preferable proton conductors suitable for use in a proton conducting membrane include a lanthanide element, a Group VIA element and a Group IA or Group IIA element such as barium, strontium, or combinations of these elements. More preferred proton conductors include yttrium. Preferable second phase materials include platinum, palladium, nickel, cobalt, chromium, manganese, vanadium, silver, gold, copper, rhodium, ruthenium, niobium, zirconium, tantalum, and combinations of these. More preferably second phase materials suitable for use in a proton conducting membrane include nickel, palladium, and combinations of these. The method for generating hydrogen is preferably preformed in the range between about 600.degree. C. and 1,700.degree. C.

  1. Elk Falls Extended Facility

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

    elk_falls_ef

  2. Method for simultaneous recovery of hydrogen from water and from hydrocarbons

    DOE Patents [OSTI]

    Willms, R. Scott (Los Alamos, NM)

    1996-01-01

    Method for simultaneous recovery of hydrogen and hydrogen isotopes from water and from hydrocarbons. A palladium membrane, when utilized in cooperation with a nickel catalyst in a reactor, has been found to drive reactions such as water gas shift, steam reforming and methane cracking to substantial completion by removing the product hydrogen from the reacting mixture. In addition, ultrapure hydrogen is produced, thereby eliminating the need for an additional processing step.

  3. Hydrogen isotopes as a proxy for the [sup 18]O content of water...

    Office of Scientific and Technical Information (OSTI)

    the sup 18O content of water in carbonates Citation Details In-Document Search Title: Hydrogen isotopes as a proxy for the sup 18O content of water in carbonates Water ...

  4. Polymer formulation for removing hydrogen and liquid water from an enclosed space

    DOE Patents [OSTI]

    Shepodd, Timothy J.

    2006-02-21

    This invention describes a solution to the particular problem of liquid water formation in hydrogen getters exposed to quantities of oxygen. Water formation is usually desired because the recombination reaction removes hydrogen without affecting gettering capacity and the oxygen removal reduces the chances for a hydrogen explosion once free oxygen is essentially removed. The present invention describes a getter incorporating a polyacrylate compound that can absorb up to 500% of its own weight in liquid water without significantly affecting its hydrogen gettering/recombination properties, but that also is insensitive to water vapor.

  5. Reaction of Aluminum with Water to Produce Hydrogen: A Study of Issues

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

    Related to the Use of Aluminum for On-Board Vehicular Hydrogen Storage. Version 2, 2010. | Department of Energy Reaction of Aluminum with Water to Produce Hydrogen: A Study of Issues Related to the Use of Aluminum for On-Board Vehicular Hydrogen Storage. Version 2, 2010. Reaction of Aluminum with Water to Produce Hydrogen: A Study of Issues Related to the Use of Aluminum for On-Board Vehicular Hydrogen Storage. Version 2, 2010. Produced in 2008 by DOE and updated in 2010, this report focuses

  6. Metal-Oxo Catalysts for Generating Hydrogen from Water - Energy Innovation

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

    Portal Hydrogen and Fuel Cell Hydrogen and Fuel Cell Find More Like This Return to Search Metal-Oxo Catalysts for Generating Hydrogen from Water Lawrence Berkeley National Laboratory Contact LBL About This Technology Technology Marketing SummaryScientists at Berkeley Lab have developed an inexpensive, highly efficient catalyst that can be used in the electrolysis of water to generate H2-a source of clean fuel, a reducing agent for metal ores, and a reactant used to produce hydrochloric acid

  7. Spectroscopic and thermodynamic properties of molecular hydrogen dissolved in water at pressures up to 200 MPa

    SciTech Connect (OSTI)

    Borysow, Jacek Rosso, Leonardo del; Celli, Milva; Ulivi, Lorenzo; Moraldi, Massimo

    2014-04-28

    We have measured the Raman Q-branch of hydrogen in a solution with water at a temperature of about 280 K and at pressures from 20 to 200 MPa. From a least-mean-square fitting analysis of the broad Raman Q-branch, we isolated the contributions from the four lowest individual roto-vibrational lines. The vibrational lines were narrower than the pure rotational Raman lines of hydrogen dissolved in water measured previously, but significantly larger than in the gas. The separations between these lines were found to be significantly smaller than in gaseous hydrogen and their widths were slightly increasing with pressure. The lines were narrowing with increasing rotational quantum number. The Raman frequencies of all roto-vibrational lines were approaching the values of gas phase hydrogen with increasing pressure. Additionally, from the comparison of the integrated intensity signal of Q-branch of hydrogen to the integrated Raman signal of the water bending mode, we have obtained the concentration of hydrogen in a solution with water along the 280 K isotherm. Hydrogen solubility increases slowly with pressure, and no deviation from a smooth behaviour was observed, even reaching thermodynamic conditions very close to the transition to the stable hydrogen hydrate. The analysis of the relative hydrogen concentration in solution on the basis of a simple thermodynamic model has allowed us to obtain the molar volume for the hydrogen gas/water solution. Interestingly, the volume relative to one hydrogen molecule in solution does not decrease with pressure and, at high pressure, is larger than the volume pertinent to one molecule of water. This is in favour of the theory of hydrophobic solvation, for which a larger and more stable structure of the water molecules is expected around a solute molecule.

  8. DOE Annual Progress Report: Water Needs and Constraints for Hydrogen Pathways

    SciTech Connect (OSTI)

    Simon, A; Daily, W

    2009-07-02

    Water is a critical feedstock in the production of hydrogen. In fact, water and many of the energy transformations upon which society depends are inextricably linked. Approximately 39% of freshwater withdrawals are used for cooling of power plants, and another 8% are used in industry and mining (including oil and gas extraction and refining). Major changes in the energy infrastructure (as envisioned in a transformation to a hydrogen economy) will necessarily result in changes to the water infrastructure. Depending on the manner in which a hydrogen economy evolves, these changes could be large or small, detrimental or benign. Water is used as a chemical feedstock for hydrogen production and as a coolant for the production process. Process and cooling water must meet minimum quality specifications (limits on mineral and organic contaminants) at both the inlet to the process and at the point of discharge. If these specifications are not met, then the water must be treated, which involves extra expenditure on equipment and energy. There are multiple options for water treatment and cooling systems, each of which has a different profile of equipment cost and operational requirements. The engineering decisions that are made when building out the hydrogen infrastructure will play an important role in the cost of producing hydrogen, and those decisions will be influenced by the regional and national policies that help to manage water resources. In order to evaluate the impacts of water on hydrogen production and of a hydrogen economy on water resources, this project takes a narrowly-scoped lifecycle analysis approach. We begin with a process model of hydrogen production and calculate the process water, cooling, electricity and energy feedstock demands. We expand beyond the production process itself by analyzing the details of the cooling system and water treatment system. At a regional scale, we also consider the water use associated with the electricity and fuel that feed hydrogen production and distribution. The narrow scope of the lifecycle analysis enables economic optimization at the plant level with respect to cooling and water treatment technologies. As water withdrawal and disposal costs increase, more expensive, but more water-efficient technologies become more attractive. Some of the benefits of these technologies are offset by their increased energy usage. We use the H2A hydrogen production model to determine the overall cost of hydrogen under a range of water cost and technology scenarios. At the regional level, we are planning on following the hydrogen roll-out scenarios envisioned by Greene and Leiby (2008) to determine the impact of hydrogen market penetration on various watersheds. The economics of various water technologies will eventually be incorporated into the temporal and geographic Macro System Model via a water module that automates the spreadsheet models described. At the time of this progress report, the major achievement for FY2009 has been the completion of the framework and analytical results of the economic optimization of water technology for hydrogen production. This accomplishment required the collection of cost and performance data for multiple cooling and water treatment technologies, as well as the integration of a water and energy balance model with the H2A framework. 22 (twenty-two) different combinations of production method (SMR, electrolysis), scale (centralized, forecourt), cooling (evaporative tower, dry) and water treatment (reverse osmosis, ion exchange) were evaluated. The following data were collected: water withdrawal, water discharge, electricity consumption, equipment footprint, equipment cost, installation cost, annual equipment and material costs and annual labor costs. These data, when consolidated, fit into a small number of input cells in H2A. Items such as capital cost end up as line-items for which there is space in the existing H2A spreadsheets. Items such as electricity use are added to the values that already exist in H2A. Table 1 lists eight potential technology combina

  9. hydrogen

    National Nuclear Security Administration (NNSA)

    3%2A en Cheaper catalyst may lower fuel costs for hydrogen-powered cars http:www.nnsa.energy.govblogcheaper-catalyst-may-lower-fuel-costs-hydrogen-powered-cars

  10. hydrogen

    National Nuclear Security Administration (NNSA)

    3%2A en Cheaper catalyst may lower fuel costs for hydrogen-powered cars http:nnsa.energy.govblogcheaper-catalyst-may-lower-fuel-costs-hydrogen-powered-cars

  11. Hydrogen from Water in a Novel Recombinant Cyanobacterial System

    SciTech Connect (OSTI)

    Weyman, Philip D; Smith, Hamillton O.

    2014-12-03

    Photobiological processes are attractive routes to renewable H2 production. With the input of solar energy, photosynthetic microbes such as cyanobacteria and green algae carry out oxygenic photosynthesis, using sunlight energy to extract protons and high energy electrons from water. These protons and high energy electrons can be fed to a hydrogenase system yielding H2. However, most hydrogen-evolving hydrogenases are inhibited by O2, which is an inherent byproduct of oxygenic photosynthesis. The rate of H2 production is thus limited. Certain photosynthetic bacteria are reported to have an O2-tolerant evolving hydrogenase, yet these microbes do not split water, and require other more expensive feedstocks. To overcome these difficulties, the goal of this work has been to construct novel microbial hybrids by genetically transferring O2-tolerant hydrogenases from other bacteria into a class of photosynthetic bacteria called cyanobacteria. These hybrid organisms will use the photosynthetic machinery of the cyanobacterial hosts to perform the water-oxidation reaction with the input of solar energy, and couple the resulting protons and high energy electrons to the O2-tolerant bacterial hydrogenase, all within the same microbe (Fig. 1). The ultimate goal of this work has been to overcome the sensitivity of the hydrogenase enzyme to O2 and address one of the key technological hurdles to cost-effective photobiological H2 production which currently limits the production of hydrogen in algal systems. In pursuit of this goal, work on this project has successfully completed many subtasks leading to a greatly increased understanding of the complicated [NiFe]-hydrogenase enzymes. At the beginning of this project, [NiFe] hydrogenases had never been successfully moved across wide species barriers and had never been heterologously expressed in cyanobacteria. Furthermore, the idea that whole, functional genes could be extracted from complicated, mixed-sequence meta-genomes was not established. In the course of this work, we identified a new hydrogenase from environmental DNA sequence and successfully expressed it in a variety of hosts including cyanobacteria. This was one of the first examples of these complicated enzymes being moved across vastly different bacterial species and is the first example of a hydrogenase being brought to life from no other information than a DNA sequence from metagenomic data. The hydrogenase we identified had the molecular signature of other O2-tolerant hydrogenases, and we discovered that the resulting enzyme had exceptionally high oxygen- and thermo-tolerance. The new enzyme retained 80% of its activity after incubation at 80 C for 2 hours and retained 20% activity in 1% O2. We performed detailed analysis on the maturation genes required for construction of a functional enzyme of this class of hydrogenase, and found that seven additional maturation genes were required for minimal activity and a total of nine genes besides the hydrogenase were required for optimal maturation efficiency. Furthermore, we demonstrated that the maturation genes are functional on closely-related hydrogenase enzymes such as those from Alteromonas macleodii and Thiocapsa roseopersicina. Finally, we have extensively modified the hydrogenase to engineer new traits including higher H2 production and better interaction with electron donors. For example, combining two strategies increased hydrogenase activity in cyanobacteria by at least 20-fold over our initial expression level. The activity of this combined strain is almost twice that of the native hydrogenase activity in S. elongatus. This work validates the idea that these enzymes are broadly tolerant to modifications that may help integrate them into a successful photobiological H2 production system. While we did not achieve our ultimate goal of integrating the functional hydrogenase with the cyanobacterial photosynthetic apparatus, the work on this project has led to significant advances in the understanding of these complicated enzymes. This work will greatly benefit future

  12. Comparison of Water-Hydrogen Catalytic Exchange Processes Versus...

    Office of Environmental Management (EM)

    for Water Detritiation More Documents & Publications Tritium R&D at AECL Selected Topics Light Water Detritiation using the CECE Process Fukushima Light Water Detritiation System

  13. AWEA Wind Energy Fall Symposium

    Broader source: Energy.gov [DOE]

    The AWEA Wind Energy Fall Symposium gathers wind energy professionals for informal yet productive interactions with industry peers. Jose Zayas, Director, Wind & Water Power Technologies Office,...

  14. DOE NSF Partnership to Address Critical Challenges in Hydrogen Production from Solar Water Splitting

    Office of Energy Efficiency and Renewable Energy (EERE)

    EERE and the National Science Foundation (NSF) announce a funding opportunity in the area of renewable hydrogen technology research and development, specifically addressing discovery and development of advanced materials systems and chemical proceesses for direct photochemical and/or thermochemical water splitting for application in the solar production of hydrogen fuel.

  15. The sticking of atomic hydrogen on amorphous water ice

    SciTech Connect (OSTI)

    Veeraghattam, Vijay K.; Manrodt, Katie; Lewis, Steven P.; Stancil, P. C. E-mail: lewis@physast.uga.edu

    2014-07-20

    Using classical molecular dynamics, we have simulated the sticking and scattering process of a hydrogen atom on an amorphous ice film to predict the sticking probability of hydrogen on ice surfaces. A wide range of initial kinetic energies of the incident hydrogen atom (10 K-600 K) and two different ice temperatures (10 K and 70 K) were used to investigate this fundamental process in interstellar chemistry. We report here the sticking probability of atomic hydrogen as a function of incident kinetic energy, gas temperature, and substrate temperature, which can be used in astrophysical models. The current results are compared to previous theoretical and experimental studies that have reported a wide range in the sticking coefficient.

  16. Hydrogen production by high-temperature water splitting using electron-conducting membranes

    DOE Patents [OSTI]

    Lee, Tae H.; Wang, Shuangyan; Dorris, Stephen E.; Balachandran, Uthamalingam

    2004-04-27

    A device and method for separating water into hydrogen and oxygen is disclosed. A first substantially gas impervious solid electron-conducting membrane for selectively passing hydrogen is provided and spaced from a second substantially gas impervious solid electron-conducting membrane for selectively passing oxygen. When steam is passed between the two membranes at disassociation temperatures the hydrogen from the disassociation of steam selectively and continuously passes through the first membrane and oxygen selectively and continuously passes through the second membrane, thereby continuously driving the disassociation of steam producing hydrogen and oxygen.

  17. Zeolite Membrane Reactor for Water Gas Shift Reaction for Hydrogen Production

    SciTech Connect (OSTI)

    Lin, Jerry Y.S.

    2013-01-29

    Gasification of biomass or heavy feedstock to produce hydrogen fuel gas using current technology is costly and energy-intensive. The technology includes water gas shift reaction in two or more reactor stages with inter-cooling to maximize conversion for a given catalyst volume. This project is focused on developing a membrane reactor for efficient conversion of water gas shift reaction to produce a hydrogen stream as a fuel and a carbon dioxide stream suitable for sequestration. The project was focused on synthesizing stable, hydrogen perm-selective MFI zeolite membranes for high temperature hydrogen separation; fabricating tubular MFI zeolite membrane reactor and stable water gas shift catalyst for membrane reactor applications, and identifying experimental conditions for water gas shift reaction in the zeolite membrane reactor that will produce a high purity hydrogen stream. The project has improved understanding of zeolite membrane synthesis, high temperature gas diffusion and separation mechanisms for zeolite membranes, synthesis and properties of sulfur resistant catalysts, fabrication and structure optimization of membrane supports, and fundamentals of coupling reaction with separation in zeolite membrane reactor for water gas shift reaction. Through the fundamental study, the research teams have developed MFI zeolite membranes with good perm-selectivity for hydrogen over carbon dioxide, carbon monoxide and water vapor, and high stability for operation in syngas mixture containing 500 part per million hydrogen sulfide at high temperatures around 500C. The research teams also developed a sulfur resistant catalyst for water gas shift reaction. Modeling and experimental studies on the zeolite membrane reactor for water gas shift reaction have demonstrated the effective use of the zeolite membrane reactor for production of high purity hydrogen stream.

  18. Photogeneration of active formate decomposition catalysts to produce hydrogen from formate and water

    DOE Patents [OSTI]

    King, Jr., Allen D. (Athens, GA); King, Robert B. (Athens, GA); Sailers, III, Earl L. (Athens, GA)

    1983-02-08

    A process for producing hydrogen from formate and water by photogenerating an active formate decomposition catalyst from transition metal carbonyl precursor catalysts at relatively low temperatures and otherwise mild conditions is disclosed. Additionally, this process may be expanded to include the generation of formate from carbon monoxide and hydroxide such that the result is the water gas shift reaction.

  19. High Efficiency Generation of Hydrogen Fuels Using Solar Thermochemical Splitting of Water

    SciTech Connect (OSTI)

    Heske, Clemens; Moujaes, Samir; Weimer, Alan; Wong, Bunsen; Siegal, Nathan; McFarland, Eric; Miller, Eric; Lewis, Michele; Bingham, Carl; Roth, Kurth; Sabacky, Bruce; Steinfeld, Aldo

    2011-09-29

    The objective of this work is to identify economically feasible concepts for the production of hydrogen from water using solar energy. The ultimate project objective was to select one or more competitive concepts for pilot-scale demonstration using concentrated solar energy. Results of pilot scale plant performance would be used as foundation for seeking public and private resources for full-scale plant development and testing. Economical success in this venture would afford the public with a renewable and limitless source of energy carrier for use in electric power load-leveling and as a carbon-free transportation fuel. The Solar Hydrogen Generation Research (SHGR) project embraces technologies relevant to hydrogen research under the Office of Hydrogen Fuel Cells and Infrastructure Technology (HFCIT) as well as concentrated solar power under the Office of Solar Energy Technologies (SET). Although the photoelectrochemical work is aligned with HFCIT, some of the technologies in this effort are also consistent with the skills and technologies found in concentrated solar power and photovoltaic technology under the Office of Solar Energy Technologies (SET). Hydrogen production by thermo-chemical water-splitting is a chemical process that accomplishes the decomposition of water into hydrogen and oxygen using only heat or a combination of heat and electrolysis instead of pure electrolysis and meets the goals for hydrogen production using only water and renewable solar energy as feed-stocks. Photoelectrochemical hydrogen production also meets these goals by implementing photo-electrolysis at the surface of a semiconductor in contact with an electrolyte with bias provided by a photovoltaic source. Here, water splitting is a photo-electrolytic process in which hydrogen is produced using only solar photons and water as feed-stocks. The thermochemical hydrogen task engendered formal collaborations among two universities, three national laboratories and two private sector entities. The photoelectrochemical hydrogen task included formal collaborations with three universities and one national laboratory. The formal participants in these two tasks are listed above. Informal collaborations in both projects included one additional university (the University of Nevada, Reno) and two additional national laboratories (Lawrence Livermore National Laboratory and Lawrence Berkeley National Laboratory).

  20. Hydrogen production by high temperature water splitting using electron conducting membranes

    DOE Patents [OSTI]

    Balachandran, Uthamalingam; Wang, Shuangyan; Dorris, Stephen E.; Lee, Tae H.

    2006-08-08

    A device and method for separating water into hydrogen and oxygen is disclosed. A first substantially gas impervious solid electron-conducting membrane for selectively passing protons or hydrogen is provided and spaced from a second substantially gas impervious solid electron-conducting membrane for selectively passing oxygen. When steam is passed between the two membranes at dissociation temperatures the hydrogen from the dissociation of steam selectively and continuously passes through the first membrane and oxygen selectively and continuously passes through the second membrane, thereby continuously driving the dissociation of steam producing hydrogen and oxygen. The oxygen is thereafter reacted with methane to produce syngas which optimally may be reacted in a water gas shift reaction to produce CO2 and H2.

  1. Tellurapyrylium dyes as catalysts for the conversion of singlet oxygen and water to hydrogen peroxide

    SciTech Connect (OSTI)

    Detty, M.R. ); Gibson, S.L. )

    1990-05-09

    The development of methods for light-to-chemical energy conversion is important for application to solar-energy storage schemes. While the major emphasis in such research has been water splitting for the production of hydrogen, the photoproduction of other energy-rich compounds such as hydrogen peroxide has also received attention. The authors report novel, catalytic reactions of tellurapyrlium dye 1 that utilize tellurium(IV) species 2 as an intermediate.

  2. Chippewa Falls

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

    years... & When did it all begin? 2 1974? 1978? 1963? CDC 6600 - 1974 NERSC started service with the first Supercomputer... 3 A well-used system - Serial Number 1 ● On its last legs... Designed and built in Chippewa Falls Launch Date: 1963 Load / Store Architecture ● First RISC Computer! First CRT Monitor Freon Cooled State-of-the-Art Remote Access at NERSC ● Via 4 acoustic modems, manually answered capable of 10 characters /sec 50 th Anniversary of the IBM / Cray Rivalry... 2/6/14

  3. HYDROGEN-DEUTERIUM EXCHANGE IN PHOTOLYZED METHANE-WATER ICES

    SciTech Connect (OSTI)

    Weber, Amanda S.; Hodyss, Robert; Johnson, Paul V.; Willacy, Karen; Kanik, Isik

    2009-09-20

    Previous work has concluded that H-D exchange occurs readily in polycyclic aromatic hydrocarbons frozen in deuterated water (D{sub 2}O) irradiated with ultraviolet light. Here, we examine H-D exchange in methane-water ices following exposure to ultraviolet radiation and analyze the products formed as a result. We find that H-D exchange also occurs in methane-water ices by means of ultraviolet photolysis. Exchange proceeds through a radical mechanism that implies that almost all organic species will undergo significant H-D exchange with the matrix in water ices exposed to ultraviolet radiation. Given sufficient energetic processing of the ice, the H/D ratio of an ice matrix may be transferred to the organic species in the ice.

  4. The effect of plutonium dioxide water surface coverage on the generation of hydrogen and oxygen

    SciTech Connect (OSTI)

    Veirs, Douglas K.; Berg, John M.; Crowder, Mark L.

    2012-06-20

    The conditions for the production of oxygen during radiolysis of water adsorbed onto plutonium dioxide powder are discussed. Studies in the literature investigating the radiolysis of water show that both oxygen and hydrogen can be generated from water adsorbed on high-purity plutonium dioxide powder. These studies indicate that there is a threshold in the amount of water below which oxygen is not generated. The threshold is associated with the number of monolayers of adsorbed water and is shown to occur at approximately two monolayers of molecularly adsorbed water. Material in equilibrium with 50% relative humidity (RH) will be at the threshold for oxygen generation. Using two monolayers of molecularly adsorbed water as the threshold for oxygen production, the total pressure under various conditions is calculated assuming stoichiometric production of hydrogen and oxygen. The specific surface area of the oxide has a strong effect on the final partial pressure. The specific surface areas resulting in the highest pressures within a 3013 container are evaluated. The potential for oxygen generation is mitigated by reduced relative humidity, and hence moisture adsorption, at the oxide surface which occurs if the oxide is warmer than the ambient air. The potential for oxygen generation approaches zero as the temperature difference between the ambient air and the material approaches 6 C.

  5. Hydrogen Production: Photobiological

    Broader source: Energy.gov [DOE]

    The photobiological hydrogen production process uses microorganisms and sunlight to turn water, and sometimes organic matter, into hydrogen.

  6. Hydrogen

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

    - Sandia Energy Energy Search Icon Sandia Home Locations Contact Us Employee Locator Energy & Climate Secure & Sustainable Energy Future Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 Geothermal Natural Gas Safety, Security & Resilience of the Energy Infrastructure Energy Storage Nuclear Power & Engineering Grid Modernization Battery Testing Nuclear Fuel Cycle Defense Waste Management Programs Advanced Nuclear Energy Nuclear

  7. Determination of Hydrogen Bond Structure in Water versus Aprotic Environments To Test the Relationship Between Length and Stability

    SciTech Connect (OSTI)

    Sigala, Paul A.; Ruben, Eliza A.; Liu, Corey W.; Piccoli, Paula M. B.; Hohenstein, Edward G.; Martinez, Todd J.; Schultz, Arthur J.; Herschiag, Daniel

    2015-05-06

    Hydrogen bonds profoundly influence the architecture and activity of biological macromolecules. Deep appreciation of hydrogen bond contributions to biomolecular function thus requires a detailed understanding of hydrogen bond structure and energetics and the relationship between these properties. Hydrogen bond formation energies (Delta G(f)) are enormously more favorable in aprotic solvents than in water, and two classes of contributing factors have been proposed to explain this energetic difference, focusing respectively on the isolated and hydrogen-bonded species: (I) water stabilizes the dissociated donor and acceptor groups much better than aprotic solvents, thereby reducing the driving force for hydrogen bond formation; and (II) water lengthens hydrogen bonds compared to aprotic environments, thereby decreasing the potential energy within the hydrogen bond. Each model has been proposed to provide a dominant contribution to Delta G(f), but incisive tests that distinguish the importance of these contributions are lacking. Here we directly test the structural basis of model II. Neutron crystallography, NMR spectroscopy, and quantum mechanical calculations demonstrate that O-H center dot center dot center dot O hydrogen bonds in crystals, chloroform, acetone, and water have nearly identical lengths and very similar potential energy surfaces despite Delta G(f) differences >8 kcal/mol across these solvents. These results rule out a substantial contribution from solvent-dependent differences in hydrogen bond structure and potential energy after association (model II) and thus support the conclusion that differences in hydrogen bond Delta G(f) are predominantly determined by solvent interactions with the dissociated groups (model I). These findings advance our understanding of universal hydrogen-bonding interactions and have important implications for biology and engineering.

  8. DOE - Office of Legacy Management -- Falls

    Office of Legacy Management (LM)

    Texas Falls City, Texas, Disposal Site Key Documents and Links All documents are Adobe Acrobat files. pdf_icon Key Documents Fact Sheet 2014 Annual Site Inspection and Monitoring Report for Uranium Mill Tailings Radiation Control Act Title I Disposal Sites-Falls City, Texas, Disposal Site April 2015 Groundwater Sampling at the Falls City, Texas, Disposal Site Ground Water Compliance Action Plan Long-Term Surveillance Plan for the U.S. Department of Energy Falls City Uranium Mill Tailings

  9. Mitigation of Hydrogen Gas Generation from the Reaction of Water with Uranium Metal in K Basins Sludge

    SciTech Connect (OSTI)

    Sinkov, Sergey I.; Delegard, Calvin H.; Schmidt, Andrew J.

    2010-01-29

    Means to decrease the rate of hydrogen gas generation from the chemical reaction of uranium metal with water were identified by surveying the technical literature. The underlying chemistry and potential side reactions were explored by conducting 61 principal experiments. Several methods achieved significant hydrogen gas generation rate mitigation. Gas-generating side reactions from interactions of organics or sludge constituents with mitigating agents were observed. Further testing is recommended to develop deeper knowledge of the underlying chemistry and to advance the technology aturation level. Uranium metal reacts with water in K Basin sludge to form uranium hydride (UH3), uranium dioxide or uraninite (UO2), and diatomic hydrogen (H2). Mechanistic studies show that hydrogen radicals (H·) and UH3 serve as intermediates in the reaction of uranium metal with water to produce H2 and UO2. Because H2 is flammable, its release into the gas phase above K Basin sludge during sludge storage, processing, immobilization, shipment, and disposal is a concern to the safety of those operations. Findings from the technical literature and from experimental investigations with simple chemical systems (including uranium metal in water), in the presence of individual sludge simulant components, with complete sludge simulants, and with actual K Basin sludge are presented in this report. Based on the literature review and intermediate lab test results, sodium nitrate, sodium nitrite, Nochar Acid Bond N960, disodium hydrogen phosphate, and hexavalent uranium [U(VI)] were tested for their effects in decreasing the rate of hydrogen generation from the reaction of uranium metal with water. Nitrate and nitrite each were effective, decreasing hydrogen generation rates in actual sludge by factors of about 100 to 1000 when used at 0.5 molar (M) concentrations. Higher attenuation factors were achieved in tests with aqueous solutions alone. Nochar N960, a water sorbent, decreased hydrogen generation by no more than a factor of three while disodium phosphate increased the corrosion and hydrogen generation rates slightly. U(VI) showed some promise in attenuating hydrogen but only initial testing was completed. Uranium metal corrosion rates also were measured. Under many conditions showing high hydrogen gas attenuation, uranium metal continued to corrode at rates approaching those observed without additives. This combination of high hydrogen attenuation with relatively unabated uranium metal corrosion is significant as it provides a means to eliminate uranium metal by its corrosion in water without the accompanying hazards otherwise presented by hydrogen generation.

  10. Pilot Scale Water Gas Shift - Membrane Device for Hydrogen from Coal

    SciTech Connect (OSTI)

    Barton, Tom

    2013-06-30

    The objectives of the project were to build pilot scale hydrogen separation systems for use in a gasification product stream. This device would demonstrate fabrication and manufacturing techniques for producing commercially ready facilities. The design was a 2 lb/day hydrogen device which included composite hydrogen separation membranes, a water gas shift monolith catalyst, and stainless steel structural components. Synkera Technologies was to prepare hydrogen separation membranes with metallic rims, and to adjust the alloy composition in their membranes to a palladium-gold composition which is sulfur resistant. Chart was to confirm their brazing technology for bonding the metallic rims of the composite membranes to their structural components and design and build the 2 lbs/day device incorporating membranes and catalysts. WRI prepared the catalysts and completed the testing of the membranes and devices on coal derived syngas. The reactor incorporated eighteen 2'' by 7'' composite palladium alloy membranes. These membranes were assembled with three stacks of three paired membranes. Initial vacuum testing and visual inspection indicated that some membranes were cracked, either in transportation or in testing. During replacement of the failed membranes, while pulling a vacuum on the back side of the membranes, folds were formed in the flexible composite membranes. In some instances these folds led to cracks, primarily at the interface between the alumina and the aluminum rim. The design of the 2 lb/day device was compromised by the lack of any membrane isolation. A leak in any membrane failed the entire device. A large number of tests were undertaken to bring the full 2 lb per day hydrogen capacity on line, but no single test lasted more than 48 hours. Subsequent tests to replace the mechanical seals with brazing have been promising, but the technology remains promising but not proven.

  11. AGU Fall Meeting 2014

    Broader source: Energy.gov [DOE]

    The American Geophysical Union's 47th Annual Fall Meeting will showcase groundbreaking research in the geosciences.

  12. Study of hydrogen in coals, polymers, oxides, and muscle water by nuclear magnetic resonance; extension of solid-state high-resolution techniques. [Hydrogen molybdenum bronze

    SciTech Connect (OSTI)

    Ryan, L.M.

    1981-10-01

    Nuclear magnetic resonance (NMR) spectroscopy has been an important analytical and physical research tool for several decades. One area of NMR which has undergone considerable development in recent years is high resolution NMR of solids. In particular, high resolution solid state /sup 13/C NMR spectra exhibiting features similar to those observed in liquids are currently achievable using sophisticated pulse techniques. The work described in this thesis develops analogous methods for high resolution /sup 1/H NMR of rigid solids. Applications include characterization of hydrogen aromaticities in fossil fuels, and studies of hydrogen in oxides and bound water in muscle.

  13. Validation of Hydrogen Exchange Methodology on Molecular Sieves for Tritium Removal from Contaminated Water

    Broader source: Energy.gov [DOE]

    Presentation from the 34th Tritium Focus Group Meeting held in Idaho Falls, Idaho on September 23-25, 2014.

  14. Thermochemical generation of hydrogen and oxygen from water. [NaMnO/sub 2/ and TiO/sub 2/

    DOE Patents [OSTI]

    Robinson, P.R.; Bamberger, C.E.

    1980-02-08

    A thermochemical cyclic process for the production of hydrogen exploits the reaction between sodium manganate (NaMnO/sub 2/) and titanium dioxide (TiO/sub 2/) to form sodium titanate (Na/sub 2/TiO/sub 3/), manganese (II) titanate (MnTiO/sub 3/) and oxygen. The titanate mixture is treated with sodium hydroxide, in the presence of steam, to form sodium titanate, sodium manganate (III), water and hydrogen. The sodium titanate-manganate (III) mixture is treated with water to form sodium manganate (III), titanium dioxide and sodium hydroxide. Sodium manganate (III) and titanium dioxide are recycled following dissolution of sodium hydroxide in water.

  15. Apparatus and method for simultaneous recovery of hydrogen from water and from hydrocarbons

    DOE Patents [OSTI]

    Willms, R. Scott (Los Alamos, NM); Birdsell, Stephen A. (Los Alamos, NM)

    2000-01-01

    Apparatus and method for simultaneous recovery of hydrogen from water and from hydrocarbon feed material. The feed material is caused to flow over a heated catalyst which fosters the water-gas shift reaction (H.sub.2 O+COH.sub.2 +CO.sub.2) and the methane steam reforming reaction (CH.sub.4 +H.sub.2 O3 H.sub.2 +CO). Both of these reactions proceed only to partial completion. However, by use of a Pd/Ag membrane which is exclusively permeable to hydrogen isotopes in the vicinity of the above reactions and by maintaining a vacuum on the permeate side of the membrane, product hydrogen isotopes are removed and the reactions are caused to proceed further toward completion. A two-stage palladium membrane reactor was tested with a feed composition of 28% CQ.sub.4, 35% Q.sub.2 O (where Q=H, D, or T), and 31% Ar in 31 hours of continuous operation during which 4.5 g of tritium were processed. Decontamination factors were found to increase with decreasing inlet rate. The first stage was observed to have a decontamination factor of approximately 200, while the second stage had a decontamination factor of 2.9.times.10.sup.6. The overall decontamination factor was 5.8.times.10.sup.8. When a Pt/.alpha.-Al.sub.2 O.sub.3 catalyst is employed, decoking could be performed without catalyst degradation. However, by adjusting the carbon to oxygen ratio of the feed material with the addition of oxygen, coking could be altogether avoided.

  16. Uranium metal reactions with hydrogen and water vapour and the reactivity of the uranium hydride produced

    SciTech Connect (OSTI)

    Godfrey, H.; Broan, C.; Goddard, D.; Hodge, N.; Woodhouse, G.; Diggle, A.; Orr, R.

    2013-07-01

    Within the nuclear industry, metallic uranium has been used as a fuel. If this metal is stored in a hydrogen rich environment then the uranium metal can react with the hydrogen to form uranium hydride which can be pyrophoric when exposed to air. The UK National Nuclear Laboratory has been carrying out a programme of research for Sellafield Limited to investigate the conditions required for the formation and persistence of uranium hydride and the reactivity of the material formed. The experimental results presented here have described new results characterising uranium hydride formed from bulk uranium at 50 and 160 C. degrees and measurements of the hydrolysis kinetics of these materials in liquid water. It has been shown that there is an increase in the proportion of alpha-uranium hydride in material formed at lower temperatures and that there is an increase in the rate of reaction with water of uranium hydride formed at lower temperatures. This may at least in part be attributable to a difference in the reaction rate between alpha and beta-uranium hydride. A striking observation is the strong dependence of the hydrolysis reaction rate on the temperature of preparation of the uranium hydride. For example, the reaction rate of uranium hydride prepared at 50 C. degrees was over ten times higher than that prepared at 160 C. degrees at 20% extent of reaction. The decrease in reaction rate with the extent of reaction also depended on the temperature of uranium hydride preparation.

  17. Transition pathways in a many-body system: Application to hydrogen-bond breaking in water

    SciTech Connect (OSTI)

    Csajka, F.S.; Chandler, D.

    1998-07-01

    We apply a stochastic method introduced by Dellago {ital et al.} [J. Chem. Phys. {bold 108}, 1964 (1998)] to sample transition paths in high-dimensional systems. The method connects two endpoint regions (for example a reactant and a product region) by a set of space-time paths. This approach is an importance sampling for rare events that does not require prior knowledge of the location of dynamical bottlenecks. Transition paths are generated with a weight corresponding to a chain of Metropolis Monte Carlo steps. We derive Monte Carlo algorithms and apply the technique to the dynamics of hydrogen-bond breaking in liquid water. We obtain averages in a transition path ensemble for the structure and energy along the trajectory. While characterized by a rate constant, hydrogen-bond breaking in water occurs frequently enough to be studied by standard methods. The process therefore provides a useful test of path sampling methods. The comparison between path sampling and standard Monte Carlo demonstrate the feasibility of transition path sampling for a many-body system with a rough potential energy surface. {copyright} {ital 1998 American Institute of Physics.}

  18. The hydrogen-bond network of water supports propagating optical phonon-like modes

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

    Elton, Daniel C.; Fernández-Serra, Marivi

    2016-01-04

    The local structure of liquid water as a function of temperature is a source of intense research. This structure is intimately linked to the dynamics of water molecules, which can be measured using Raman and infrared spectroscopies. The assignment of spectral peaks depends on whether they are collective modes or single-molecule motions. Vibrational modes in liquids are usually considered to be associated to the motions of single molecules or small clusters. Using molecular dynamics simulations, here we find dispersive optical phonon-like modes in the librational and OH-stretching bands. We argue that on subpicosecond time scales these modes propagate through water’smore » hydrogen-bond network over distances of up to 2 nm. In the long wavelength limit these optical modes exhibit longitudinal–transverse splitting, indicating the presence of coherent long-range dipole–dipole interactions, as in ice. Lastly, our results indicate the dynamics of liquid water have more similarities to ice than previously thought.« less

  19. Membrane contactor assisted water extraction system for separating hydrogen peroxide from a working solution, and method thereof

    DOE Patents [OSTI]

    Snyder, Seth W.; Lin, Yupo J.; Hestekin' Jamie A.; Henry, Michael P.; Pujado, Peter; Oroskar, Anil; Kulprathipanja, Santi; Randhava, Sarabjit

    2010-09-21

    The present invention relates to a membrane contactor assisted extraction system and method for extracting a single phase species from multi-phase working solutions. More specifically one preferred embodiment of the invention relates to a method and system for membrane contactor assisted water (MCAWE) extraction of hydrogen peroxide (H.sub.2O.sub.2) from a working solution.

  20. Sunlight-Driven Hydrogen Formation by Membrane-Supported Photoelectrochemical Water Splitting

    SciTech Connect (OSTI)

    Lewis, Nathan S.

    2014-03-26

    This report describes the significant advances in the development of the polymer-supported photoelectrochemical water-splitting system that was proposed under DOE grant number DE-FG02-05ER15754. We developed Si microwire-array photoelectrodes, demonstrated control over the material and light-absorption properties of the microwire-array photoelectrodes, developed inexpensive processes for synthesizing the arrays, and doped the arrays p-type for use as photocathodes. We also developed techniques for depositing metal-nanoparticle catalysts of the hydrogen-evolution reaction (HER) on the wire arrays, investigated the stability and catalytic performance of the nanoparticles, and demonstrated that Ni-Mo alloys are promising earth-abundant catalysts of the HER. We also developed methods that allow reuse of the single-crystalline Si substrates used for microwire growth and methods of embedding the microwire photocathodes in plastic to enable large-scale processing and deployment of the technology. Furthermore we developed techniques for controlling the structure of WO3 films, and demonstrated that structural control can improve the quantum yield of photoanodes. Thus, by the conclusion of this project, we demonstrated significant advances in the development of all components of a sunlight-driven membrane-supported photoelectrochemical water-splitting system. This final report provides descriptions of some of the scientific accomplishments that were achieved under the support of this project and also provides references to the peer-reviewed publications that resulted from this effort.

  1. Falls Creek Hydroelectric Project

    SciTech Connect (OSTI)

    Gustavus Electric Company; Richard Levitt; DOE Project Officer - Keith Bennett

    2007-06-12

    This project was for planning and construction of a 700kW hydropower project on the Fall River near Gustavus, Alaska.

  2. 2009, Webbers Falls Open

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

    once the rehabilitation is complete plant capacity will increase by 8.5 percent. Dan Lehman, Project Engineer of the Webbers Falls rehabilitation project, finished up the Open...

  3. NIAGARA FALLS STORAGE SITE

    Office of Legacy Management (LM)

    HITTMAN BUILDING <,' 2:. NIAGARA FALLS STORAGE SITE I . ; " LEWISTON, ' NEW YORK : f? ... Survey and Site Assessment Program EnergyEnvironment Systems Division ;>::; Oak ...

  4. Proton transfer through hydrogen bonds in two-dimensional water layers: A theoretical study based on ab initio and quantum-classical simulations

    SciTech Connect (OSTI)

    Bankura, Arindam; Chandra, Amalendu

    2015-01-28

    The dynamics of proton transfer (PT) through hydrogen bonds in a two-dimensional water layer confined between two graphene sheets at room temperature are investigated through ab initio and quantum-classical simulations. The excess proton is found to be mostly solvated as an Eigen cation where the hydronium ion donates three hydrogen bonds to the neighboring water molecules. In the solvation shell of the hydronium ion, the three coordinated water molecules with two donor hydrogen bonds are found to be properly presolvated to accept a proton. Although no hydrogen bond needs to be broken for transfer of a proton to such presolvated water molecules from the hydronium ion, the PT rate is still found to be not as fast as it is for one-dimensional chains. Here, the PT is slowed down as the probability of finding a water with two donor hydrogen bonds in the solvation shell of the hydronium ion is found to be only 25%-30%. The hydroxide ion is found to be solvated mainly as a complex anion where it accepts four H-bonds through its oxygen atom and the hydrogen atom of the hydroxide ion remains free all the time. Here, the presolvation of the hydroxide ion to accept a proton requires that one of its hydrogen bonds is broken and the proton comes from a neighboring water molecule with two acceptor and one donor hydrogen bonds. The coordination number reduction by breaking of a hydrogen bond is a slow process, and also the population of water molecules with two acceptor and one donor hydrogen bonds is only 20%-25% of the total number of water molecules. All these factors together tend to slow down the hydroxide ion migration rate in two-dimensional water layers compared to that in three-dimensional bulk water.

  5. Influence of water injection on performance and emissions of a direct-injection hydrogen research engine.

    SciTech Connect (OSTI)

    Nande, A. M.; Wallner, T.; Naber, J.

    2008-10-06

    The application of hydrogen (H{sub 2}) as an internal combustion (IC) engine fuel has been under investigation for several decades. The favorable physical properties of hydrogen make it an excellent alternative fuel for IC engines and hence it is widely regarded as the energy carrier of the future. Direct injection of hydrogen allows optimizing this potential as it provides multiple degrees of freedom to influence the in-cylinder combustion processes and consequently engine efficiency and exhaust emissions.

  6. CdO-CdS nano-composites as improved photo-catalysts for the generation of hydrogen from water

    SciTech Connect (OSTI)

    Kahane, Shital V.; Mahamuni, Shailaja; Sasikala, R.; Sudarsan, V.

    2014-04-24

    CdO-CdS nanocomposites were prepared by polyol method followed by heating at 300C. XRD study confirmed the atomic scale mixing of CdO and CdS nanoparticles, leading to the formation of CdSO{sub 3} phase at the interfacial region between CdO and CdS. The enhancement in photo-catalytic activity for hydrogen generation from water is observed in case of CdO-CdS nanocomposites compared to individual CdS and CdO nanoparticles. Based on XRD, steady state and time resolved luminescence studies and surface area measurements, it is determined that, the fine mixing of CdS and CdO, higher surface area of the composite sample and increase in lifetime of the charge carriers are responsible for the observed increase in hydrogen yield from water when composite sample was used as the photo-catalyst compared to individual components.

  7. NWHA Fall Workshop & Tour

    Broader source: Energy.gov [DOE]

    This year’s Fall Regional Workshop on October 30 will focus on extending the longevity of our legacy hydropower projects through upgrades, refurbishment and life extensions, while meeting needs of...

  8. Title: Ames Blue Alert- Wood Cabinet Falls Apart

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

    Ames Blue Alert- Wood Cabinet Falls Apart Lessons Learned Statement- Cumulative damage can cause a loss of structural integrity. When furnishings are repeatedly exposed to water,...

  9. Quantifying Temperature Effects on Fall Chinook Salmon

    SciTech Connect (OSTI)

    Jager, Yetta

    2011-11-01

    The motivation for this study was to recommend relationships for use in a model of San Joaquin fall Chinook salmon. This report reviews literature pertaining to relationships between water temperature and fall Chinook salmon. The report is organized into three sections that deal with temperature effects on development and timing of freshwater life stages, temperature effects on incubation survival for eggs and alevin, and temperature effects on juvenile survival. Recommendations are made for modeling temperature influences for all three life stages.

  10. Striving toward noble-metal-free photocatalytic water splitting: The hydrogenated-graphene-TiO2 prototype

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

    Nguyen-Phan, Thuy -Duong; Luo, Si; Liu, Zongyuan; Gamalski, Andrew D.; Tao, Jing; Xu, Wenqian; Stach, Eric A.; Polyansky, Dmitry E.; Senanayake, Sanjaya D.; Fujita, Etsuko; et al

    2015-08-20

    Graphane, graphone and hydrogenated graphene (HG) have been extensively studied in recent years due to their interesting properties and potential use in commercial and industrial applications. The present study reports investigation of hydrogenated graphene/TiO2-x (HGT) nanocomposites as photocatalysts for H2 and O2 production from water without the assistance of a noble metal co-catalyst. By combination of several techniques, the morphologies, bulk/atomic structure and electronic properties of all the powders were exhaustively interrogated. Hydrogenation treatment efficiently reduces TiO2 nanoparticles, while the graphene oxide sheets undergo the topotactic transformation from a graphene-like structure to a mixture of graphitic and turbostratic carbon (amorphous/disordered)more » upon altering the calcination atmosphere from a mildly reducing to a H2-abundant environment. Remarkably, the hydrogenated graphene-TiO2-x composite that results upon H2-rich reduction exhibits the highest photocatalytic H2 evolution performance equivalent to low loading of Pt (~0.12 wt%), whereas the addition of HG suppresses the O2 production. As a result, we propose that such an enhancement can be attributed to a combination of factors including the introduction of oxygen vacancies and Ti3+ states, retarding the recombination of charge carriers and thus, facilitating the charge transfer from TiO2-x to the carbonaceous sheet.« less

  11. Water-Gas-Shift Membrane Reactor for High-Pressure Hydrogen Production. A comprehensive project report (FY2010 - FY2012)

    SciTech Connect (OSTI)

    Klaehn, John; Peterson, Eric; Orme, Christopher; Bhandari, Dhaval; Miller, Scott; Ku, Anthony; Polishchuk, Kimberly; Narang, Kristi; Singh, Surinder; Wei, Wei; Shisler, Roger; Wickersham, Paul; McEvoy, Kevin; Alberts, William; Howson, Paul; Barton, Thomas; Sethi, Vijay

    2013-01-01

    Idaho National Laboratory (INL), GE Global Research (GEGR), and Western Research Institute (WRI) have successfully produced hydrogen-selective membranes for water-gas-shift (WGS) modules that enable high-pressure hydrogen product streams. Several high performance (HP) polymer membranes were investigated for their gas separation performance under simulated (mixed gas) and actual syngas conditions. To enable optimal module performance, membranes with high hydrogen (H2) selectivity, permeance, and stability under WGS conditions are required. The team determined that the VTEC PI 80-051 and VTEC PI 1388 (polyimide from Richard Blaine International, Inc.) are prime candidates for the H2 gas separations at operating temperatures (~200C). VTEC PI 80-051 was thoroughly analyzed for its H2 separations under syngas processing conditions using more-complex membrane configurations, such as tube modules and hollow fibers. These membrane formats have demonstrated that the selected VTEC membrane is capable of providing highly selective H2/CO2 separation (? = 7-9) and H2/CO separation (? = 40-80) in humidified syngas streams. In addition, the VTEC polymer membranes are resilient within the syngas environment (WRI coal gasification) at 200C for over 1000 hours. The information within this report conveys current developments of VTEC PI 80-051 as an effective H2 gas separations membrane for high-temperature syngas streams.

  12. Striving toward noble-metal-free photocatalytic water splitting: The hydrogenated-graphene-TiO2 prototype

    SciTech Connect (OSTI)

    Nguyen-Phan, Thuy -Duong; Luo, Si; Liu, Zongyuan; Gamalski, Andrew D.; Tao, Jing; Xu, Wenqian; Stach, Eric A.; Polyansky, Dmitry E.; Senanayake, Sanjaya D.; Fujita, Etsuko; Rodriguez, Jose A.

    2015-08-20

    Graphane, graphone and hydrogenated graphene (HG) have been extensively studied in recent years due to their interesting properties and potential use in commercial and industrial applications. The present study reports investigation of hydrogenated graphene/TiO2-x (HGT) nanocomposites as photocatalysts for H2 and O2 production from water without the assistance of a noble metal co-catalyst. By combination of several techniques, the morphologies, bulk/atomic structure and electronic properties of all the powders were exhaustively interrogated. Hydrogenation treatment efficiently reduces TiO2 nanoparticles, while the graphene oxide sheets undergo the topotactic transformation from a graphene-like structure to a mixture of graphitic and turbostratic carbon (amorphous/disordered) upon altering the calcination atmosphere from a mildly reducing to a H2-abundant environment. Remarkably, the hydrogenated graphene-TiO2-x composite that results upon H2-rich reduction exhibits the highest photocatalytic H2 evolution performance equivalent to low loading of Pt (~0.12 wt%), whereas the addition of HG suppresses the O2 production. As a result, we propose that such an enhancement can be attributed to a combination of factors including the introduction of oxygen vacancies and Ti3+ states, retarding the recombination of charge carriers and thus, facilitating the charge transfer from TiO2-x to the carbonaceous sheet.

  13. Selection of clc, cba, and fcb chlorobenzoate-catabolic genotypes from groundwater and surface waters adjacent to the Hyde Park, Niagara Falls, chemical landfill

    SciTech Connect (OSTI)

    Peel, M.C.; Wyndham, R.C.

    1999-04-01

    The frequency of isolation of three nonhomologous chlorobenzoate catabolic genotypes (clc, cba, and fbc) was determined for 464 isolates from freshwater sediments and groundwater in the vicinity of the Hyde Park industrial landfill site in the Niagara watershed. Samples were collected from both contaminated and noncontaminated sites during spring, summer, and fall and enriched at 4, 22, or 32 C with micromolar to millimolar concentrations of chlorobenzoates and 3-chlorobiphenyl. Hybridization at moderate stringency to restriction-digested genomic DNA with DNA probes revealed the chlorocatechol 1,2-dioxygenase operon (clcABD), the 3-chlorobenzoate 3,4-(4,5)-dioxygenase operon (cbaABC), and the 4-chlorobenzoate dehalogenase (fcbB) gene in isolates enriched from all contaminated sites in the vicinity of the industrial landfill. Nevertheless, the known genes were found in less than 10% of the isolates from the contaminated sites, indicating a high level of genetic diversity in the microbial community. The known genotypes were not enriched from the noncontaminated control sites nearby. The clc, cba, and fcb isolates were distributed across five phenotypically distinct groups based on Biolog carbon source utilization, with the breadth of the host range decreasing in the order clc > cba > fcb. Restriction fragment length polymorphism (RFLP) patterns showed that the cba genes were conserved in all isolates whereas the clc and fcb genes exhibited variation in RFLP patterns.

  14. Robust Low-Cost Water-Gas Shift Membrane Reactor for High-Purity Hydrogen Production form Coal-Derived Syngas

    SciTech Connect (OSTI)

    James Torkelson; Neng Ye; Zhijiang Li; Decio Coutinho; Mark Fokema

    2008-05-31

    This report details work performed in an effort to develop a low-cost, robust water gas shift membrane reactor to convert coal-derived syngas into high purity hydrogen. A sulfur- and halide-tolerant water gas shift catalyst and a sulfur-tolerant dense metallic hydrogen-permeable membrane were developed. The materials were integrated into a water gas shift membrane reactor in order to demonstrate the production of >99.97% pure hydrogen from a simulated coal-derived syngas stream containing 2000 ppm hydrogen sulfide. The objectives of the program were to (1) develop a contaminant-tolerant water gas shift catalyst that is able to achieve equilibrium carbon monoxide conversion at high space velocity and low steam to carbon monoxide ratio, (2) develop a contaminant-tolerant hydrogen-permeable membrane with a higher permeability than palladium, (3) demonstrate 1 L/h purified hydrogen production from coal-derived syngas in an integrated catalytic membrane reactor, and (4) conduct a cost analysis of the developed technology.

  15. New hydrogen-isotope measurements refine the picture of water on Mars

    SciTech Connect (OSTI)

    Wilson, R. Mark

    2015-05-15

    Atmospheric maps and in situ spectrometry of clay minerals constrain climate models and the prevalence of water in the planets ancient past.

  16. Thermochemical method for producing hydrogen from hydrogen sulfide

    SciTech Connect (OSTI)

    Herrington, D.R.

    1984-02-21

    Hydrogen is produced from hydrogen sulfide by a 3-step, thermochemical process comprising: (a) contacting hydrogen sulfide with carbon dioxide to form carbonyl sulfide and water, (b) contacting the carbonyl sulfide produced in (a) with oxygen to form carbon monoxide and sulfur dioxide, and (c) contacting the carbon monoxide produced in (b) with water to form carbon dioxide and hydrogen.

  17. Method and apparatus for electrokinetic co-generation of hydrogen and electric power from liquid water microjets

    DOE Patents [OSTI]

    Saykally, Richard J; Duffin, Andrew M; Wilson, Kevin R; Rude, Bruce S

    2013-02-12

    A method and apparatus for producing both a gas and electrical power from a flowing liquid, the method comprising: a) providing a source liquid containing ions that when neutralized form a gas; b) providing a velocity to the source liquid relative to a solid material to form a charged liquid microjet, which subsequently breaks up into a droplet spay, the solid material forming a liquid-solid interface; and c) supplying electrons to the charged liquid by contacting a spray stream of the charged liquid with an electron source. In one embodiment, where the liquid is water, hydrogen gas is formed and a streaming current is generated. The apparatus comprises a source of pressurized liquid, a microjet nozzle, a conduit for delivering said liquid to said microjet nozzle, and a conductive metal target sufficiently spaced from said nozzle such that the jet stream produced by said microjet is discontinuous at said target. In one arrangement, with the metal nozzle and target electrically connected to ground, both hydrogen gas and a streaming current are generated at the target as it is impinged by the streaming, liquid spray microjet.

  18. Coupling reactions of phenylacetylene with water, hydrogen sulfide and primary amines mediated by a Ru(II) phenylvinylidene complex

    SciTech Connect (OSTI)

    Bianchini, C.; Peruzzini, M.; Zanobini, F. [Istituto per lo Studio della Stereochimica ed Energetica dei Composti di Coordinazione, Florence (Italy)] [and others

    1995-12-31

    The Ru(II) fragment [(PNP)RuCl{sub 2}] assists the reaction of phenylacetylene with water, hydrogen sulfide and primary amines to give carbonyl, {eta}{sup 1}-benzylthioaldehyde, and isonitrile complexes, respectively [PNP = CH{sub 3}CH{sub 2}CH{sub 2}N(CH{sub 2}CH{sub 2}PPh{sub 2}){sub 2}]. In all of these processes, the reaction is initiated by the 1-alkyne to vinylidene tautomerization at the Ru(II) center, followed by attack of the H{sub 2}Z molecule (Z = O, S, NR) on the vinylidene ligand. The mechanisms which account for these transformations have been completely elucidated and several of the intermediates in these reactions have been isolated and fully characterized. The scope of these reactions in view of their potential applications in organic syntheses involving thioaldehydes and optically pure isonitriles will be briefly presented.

  19. Granite Falls Energy | Open Energy Information

    Open Energy Info (EERE)

    Name: Granite Falls Energy Place: Granite Falls, Minnesota Zip: 56241 Product: Bioethanol producer using corn as feedstock References: Granite Falls Energy1 This article is...

  20. Klamath Falls geothermal field, Oregon

    SciTech Connect (OSTI)

    Lienau, P.J.; Culver, G.; Lund, J.W.

    1989-09-01

    Klamath Falls, Oregon, is located in a Known Geothermal Resource Area which has been used by residents, principally to obtain geothermal fluids for space heating, at least since the turn of the century. Over 500 shallow-depth wells ranging from 90 to 2,000 ft (27 to 610 m) in depth are used to heat (35 MWt) over 600 structures. This utilization includes the heating of homes, apartments, schools, commercial buildings, hospital, county jail, YMCA, and swimming pools by individual wells and three district heating systems. Geothermal well temperatures range from 100 to 230{degree}F (38 to 110{degree}C) and the most common practice is to use downhole heat exchangers with city water as the circulating fluid. Larger facilities and district heating systems use lineshaft vertical turbine pumps and plate heat exchangers. Well water chemistry indicates approximately 800 ppM dissolved solids, with sodium sulfate having the highest concentration. Some scaling and corrosion does occur on the downhole heat exchangers (black iron pipe) and on heating systems where the geo-fluid is used directly. 73 refs., 49 figs., 6 tabs.

  1. NREL Wind to Hydrogen Project: Renewable Hydrogen Production for Energy

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

    Storage & Transportation | Department of Energy Wind to Hydrogen Project: Renewable Hydrogen Production for Energy Storage & Transportation NREL Wind to Hydrogen Project: Renewable Hydrogen Production for Energy Storage & Transportation Presented at the Renewable Hydrogen Workshop, Nov. 16, 2009, in Palm Springs, CA PDF icon renewable_hydrogen_workshop_nov16_ramsden.pdf More Documents & Publications Hour-by-Hour Cost Modeling of Optimized Central Wind-Based Water Electrolysis

  2. Method of extracting iodine from liquid mixtures of iodine, water and hydrogen iodide

    DOE Patents [OSTI]

    Mysels, Karol J.

    1979-01-01

    The components of a liquid mixture consisting essentially of HI, water and at least about 50 w/o iodine are separated in a countercurrent extraction zone by treating with phosphoric acid containing at least about 90 w/o H.sub.3 PO.sub.4. The bottom stream from the extraction zone is substantially completely molten iodine, and the overhead stream contains water, HI, H.sub.3 PO.sub.4 and a small fraction of the amount of original iodine. When the water and HI are present in near-azeotropic proportions, there is particular advantage in feeding the overhead stream to an extractive distillation zone wherein it is treated with additional concentrated phosphoric acid to create an anhydrous HI vapor stream and bottoms which contain at least about 85 w/o H.sub.3 PO.sub.4. Concentration of these bottoms provides phosphoric acid infeed for both the countercurrent extraction zone and for the extractive distillation zone.

  3. ARM - Measurement - Hydrometeor fall velocity

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

    velocity Fall velocity of hydrometeors (e.g. rain, snow, graupel, hail). Categories Cloud Properties Instruments The above measurement is considered scientifically relevant for the...

  4. Capture and isotopic exchange method for water and hydrogen isotopes on zeolite catalysts up to technical scale for pre-study of processing highly tritiated water

    SciTech Connect (OSTI)

    Michling, R.; Braun, A.; Cristescu, I.; Dittrich, H.; Gramlich, N.; Lohr, N.; Glugla, M.; Shu, W.; Willms, S.

    2015-03-15

    Highly tritiated water (HTW) may be generated at ITER by various processes and, due to the excessive radio toxicity, the self-radiolysis and the exceedingly corrosive property of HTW, a potential hazard is associated with its storage and process. Therefore, the capture and exchange method for HTW utilizing Molecular Sieve Beds (MSB) was investigated in view of adsorption capacity, isotopic exchange performance and process parameters. For the MSB, different types of zeolite were selected. All zeolite materials were additionally coated with platinum. The following work comprised the selection of the most efficient zeolite candidate based on detailed parametric studies during the H{sub 2}/D{sub 2}O laboratory scale exchange experiments (about 25 g zeolite per bed) at the Tritium Laboratory Karlsruhe (TLK). For the zeolite, characterization analytical techniques such as Infrared Spectroscopy, Thermogravimetry and online mass spectrometry were implemented. Followed by further investigation of the selected zeolite catalyst under full technical operation, a MSB (about 22 kg zeolite) was processed with hydrogen flow rates up to 60 mol*h{sup -1} and deuterated water loads up to 1.6 kg in view of later ITER processing of arising HTW. (authors)

  5. Percolation behavior of tritiated water into a soil packed bed | Department

    Office of Environmental Management (EM)

    of Energy Percolation behavior of tritiated water into a soil packed bed Percolation behavior of tritiated water into a soil packed bed Presentation from the 34th Tritium Focus Group Meeting held in Idaho Falls, Idaho on September 23-25, 2014. PDF icon Percolation Behavior of Tritiated Water into a Soil Packed Bed More Documents & Publications Overview of tritium activity in Japan Validation of Hydrogen Exchange Methodology on Molecular Sieves for Tritium Removal from Contaminated Water

  6. Process and apparatus for coal hydrogenation

    DOE Patents [OSTI]

    Ruether, John A. (McMurray, PA)

    1988-01-01

    In a coal liquefaction process an aqueous slurry of coal is prepared containing a dissolved liquefaction catalyst. A small quantity of oil is added to the slurry and then coal-oil agglomerates are prepared by agitation of the slurry at atmospheric pressure. The resulting mixture of agglomerates, excess water, dissolved catalyst, and unagglomerated solids is pumped to reaction pressure and then passed through a drainage device where all but a small amount of surface water is removed from the agglomerates. Sufficient catalyst for the reaction is contained in surface water remaining on the agglomerates. The agglomerates fall into the liquefaction reactor countercurrently to a stream of hot gas which is utilized to dry and preheat the agglomerates as well as deposit catalyst on the agglomerates before they enter the reactor where they are converted to primarily liquid products under hydrogen pressure.

  7. Mitigation of Hydrogen Gas Generation from the Reaction of Uranium Metal with Water in K Basin Sludge and Sludge Waste Forms

    SciTech Connect (OSTI)

    Sinkov, Sergey I.; Delegard, Calvin H.; Schmidt, Andrew J.

    2011-06-08

    Prior laboratory testing identified sodium nitrate and nitrite to be the most promising agents to minimize hydrogen generation from uranium metal aqueous corrosion in Hanford Site K Basin sludge. Of the two, nitrate was determined to be better because of higher chemical capacity, lower toxicity, more reliable efficacy, and fewer side reactions than nitrite. The present lab tests were run to determine if nitrate’s beneficial effects to lower H2 generation in simulated and genuine sludge continued for simulated sludge mixed with agents to immobilize water to help meet the Waste Isolation Pilot Plant (WIPP) waste acceptance drainable liquid criterion. Tests were run at ~60°C, 80°C, and 95°C using near spherical high-purity uranium metal beads and simulated sludge to emulate uranium-rich KW containerized sludge currently residing in engineered containers KW-210 and KW-220. Immobilization agents tested were Portland cement (PC), a commercial blend of PC with sepiolite clay (Aquaset II H), granulated sepiolite clay (Aquaset II G), and sepiolite clay powder (Aquaset II). In all cases except tests with Aquaset II G, the simulated sludge was mixed intimately with the immobilization agent before testing commenced. For the granulated Aquaset II G clay was added to the top of the settled sludge/solution mixture according to manufacturer application directions. The gas volumes and compositions, uranium metal corrosion mass losses, and nitrite, ammonia, and hydroxide concentrations in the interstitial solutions were measured. Uranium metal corrosion rates were compared with rates forecast from the known uranium metal anoxic water corrosion rate law. The ratios of the forecast to the observed rates were calculated to find the corrosion rate attenuation factors. Hydrogen quantities also were measured and compared with quantities expected based on non-attenuated H2 generation at the full forecast anoxic corrosion rate to arrive at H2 attenuation factors. The uranium metal corrosion rates in water alone and in simulated sludge were near or slightly below the metal-in-water rate while nitrate-free sludge/Aquaset II decreased rates by about a factor of 3. Addition of 1 M nitrate to simulated sludge decreased the corrosion rate by a factor of ~5 while 1 M nitrate in sludge/Aquaset II mixtures decreased the corrosion rate by ~2.5 compared with the nitrate-free analogues. Mixtures of simulated sludge with Aquaset II treated with 1 M nitrate had uranium corrosion rates about a factor of 8 to 10 lower than the water-only rate law. Nitrate was found to provide substantial hydrogen mitigation for immobilized simulant sludge waste forms containing Aquaset II or Aquaset II G clay. Hydrogen attenuation factors of 1000 or greater were determined at 60°C for sludge-clay mixtures at 1 M nitrate. Hydrogen mitigation for tests with PC and Aquaset II H (which contains PC) were inconclusive because of suspected failure to overcome induction times and fully enter into anoxic corrosion. Lessening of hydrogen attenuation at ~80°C and ~95°C for simulated sludge and Aquaset II was observed with attenuation factors around 100 to 200 at 1 M nitrate. Valuable additional information has been obtained on the ability of nitrate to attenuate hydrogen gas generation from solution, simulant K Basin sludge, and simulant sludge with immobilization agents. Details on characteristics of the associated reactions were also obtained. The present testing confirms prior work which indicates that nitrate is an effective agent to attenuate hydrogen from uranium metal corrosion in water and simulated K Basin sludge to show that it is also effective in potential candidate solidified K Basin waste forms for WIPP disposal. The hydrogen mitigation afforded by nitrate appears to be sufficient to meet the hydrogen generation limits for shipping various sludge waste streams based on uranium metal concentrations and assumed waste form loadings.

  8. Catalytic dehydrohalogenation and hydrogenation using H{sub 2} and palladium as a method for the removal of tetrachloroethylene from water

    SciTech Connect (OSTI)

    Schreier, C.G.; Reinhard, M.

    1995-12-01

    The reduction of tetrachloroethylene to ethane in water by hydrogen and supported palladium was rapid at room temperature even at the low hydrogen partial pressure of 0.1 atm. The rate constant for reaction of PCE with 0.05g of 1% Pd on polyethylenimine coated beads was 0.034min{sup -1}. Ethane and ethene production were concomitant with ethane accounting for 65% of the initial PCE and ethene about 2%. When the support was alumina pellets, granular carbon, or activated carbon powder, PCE disappeared within 10 minutes and rate data could not obtained. Ethane was produced in these systems with yields of 65-80% while ethene was a reactive intermediate whose maximum amount was about 5% of the initial PCE. Particle size was important when using a carbon support. If hydrogen was added after PCE sorption onto the activated carbon powder, the amount of ethane formed was the same as when hydrogen was added initially. However, when hydrogen was added after PCE sorption onto granular carbon, less than 10% of the PCE could be accounted for as ethane.

  9. Hanford Reach Fall Chinook Redd

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

    0 Hanford Reach Fall Chinook Redd Monitoring Report for Calendar Year 2013 C. Lindsey and J. Nugent Mission Support Alliance Date Published February 2014 Prepared for the U.S....

  10. falls-city2.cdr

    Office of Legacy Management (LM)

    Falls City Disposal Site Uranium ore was processed near Falls City, Texas, between 1961 and 1982. The milling operations created process-related waste and tailings, a sandlike waste containing radioactive material and other contaminants. The U.S. Department of Energy (DOE) encapsulated the tailings in an engineered disposal cell in 1994. DOE established the LTSM Program in 1988 to provide stewardship of disposal cells that contain low-level radioactive material after completion of environmental

  11. NREL: Learning - Hydrogen Basics

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

    Hydrogen Basics Hydrogen is a clean-burning fuel, and when combined with oxygen in a fuel cell, it produces heat and electricity with only water vapor as a by-product. But hydrogen does not exist freely in nature: it is only produced from other sources of energy, so it is often referred to as an energy carrier, that is, an efficient way to store and transport energy. Hydrogen can be made directly from fossil fuels or biomass, or it can be produced by passing electricity through water, breaking

  12. Technology Advancements for Next Generation Falling Particle...

    Office of Scientific and Technical Information (OSTI)

    Technology Advancements for Next Generation Falling Particle Receivers. Citation Details In-Document Search Title: Technology Advancements for Next Generation Falling Particle...

  13. Twin Falls District | Open Energy Information

    Open Energy Info (EERE)

    District Jump to: navigation, search Name: BML Twin Falls District Office Address: 2536 Kimberly Road Place: Twin Falls, ID Zip: 83301 Phone Number: 208-736-2350 Website:...

  14. Hydrogen separation process

    DOE Patents [OSTI]

    Mundschau, Michael (Longmont, CO); Xie, Xiaobing (Foster City, CA); Evenson, IV, Carl (Lafayette, CO); Grimmer, Paul (Longmont, CO); Wright, Harold (Longmont, CO)

    2011-05-24

    A method for separating a hydrogen-rich product stream from a feed stream comprising hydrogen and at least one carbon-containing gas, comprising feeding the feed stream, at an inlet pressure greater than atmospheric pressure and a temperature greater than 200.degree. C., to a hydrogen separation membrane system comprising a membrane that is selectively permeable to hydrogen, and producing a hydrogen-rich permeate product stream on the permeate side of the membrane and a carbon dioxide-rich product raffinate stream on the raffinate side of the membrane. A method for separating a hydrogen-rich product stream from a feed stream comprising hydrogen and at least one carbon-containing gas, comprising feeding the feed stream, at an inlet pressure greater than atmospheric pressure and a temperature greater than 200.degree. C., to an integrated water gas shift/hydrogen separation membrane system wherein the hydrogen separation membrane system comprises a membrane that is selectively permeable to hydrogen, and producing a hydrogen-rich permeate product stream on the permeate side of the membrane and a carbon dioxide-rich product raffinate stream on the raffinate side of the membrane. A method for pretreating a membrane, comprising: heating the membrane to a desired operating temperature and desired feed pressure in a flow of inert gas for a sufficient time to cause the membrane to mechanically deform; decreasing the feed pressure to approximately ambient pressure; and optionally, flowing an oxidizing agent across the membrane before, during, or after deformation of the membrane. A method of supporting a hydrogen separation membrane system comprising selecting a hydrogen separation membrane system comprising one or more catalyst outer layers deposited on a hydrogen transport membrane layer and sealing the hydrogen separation membrane system to a porous support.

  15. Are You Ready for Fall? | Department of Energy

    Energy Savers [EERE]

    Are You Ready for Fall? Are You Ready for Fall? October 21, 2011 - 6:38am Addthis This week, Andrea talked about insulating her water heater tank in preparation for cooler weather (of course, that's something you can do any time of year to save money and energy at home). She also listed many other ways to reduce your water heating costs. Erin blogged about something we don't often think about: the historical perspective of using renewable energy. For example, Leonardo da Vinci had designed a

  16. Diesel prices continue to fall

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

    Diesel prices continue to fall The U.S. average retail price for on-highway diesel fuel fell to 4.09 a gallon on Monday. That's down 4.2 cents from a week ago, based on the weekly...

  17. Hydrogen Filling Station

    SciTech Connect (OSTI)

    Boehm, Robert F; Sabacky, Bruce; Anderson II, Everett B; Haberman, David; Al-Hassin, Mowafak; He, Xiaoming; Morriseau, Brian

    2010-02-24

    Hydrogen is an environmentally attractive transportation fuel that has the potential to displace fossil fuels. The Freedom CAR and Freedom FUEL initiatives emphasize the importance of hydrogen as a future transportation fuel. Presently, Las Vegas has one hydrogen fueling station powered by natural gas. However, the use of traditional sources of energy to produce hydrogen does not maximize the benefit. The hydrogen fueling station developed under this grant used electrolysis units and solar energy to produce hydrogen fuel. Water and electricity are furnished to the unit and the output is hydrogen and oxygen. Three vehicles were converted to utilize the hydrogen produced at the station. The vehicles were all equipped with different types of technologies. The vehicles were used in the day-to-day operation of the Las Vegas Valley Water District and monitoring was performed on efficiency, reliability and maintenance requirements. The research and demonstration utilized for the reconfiguration of these vehicles could lead to new technologies in vehicle development that could make hydrogen-fueled vehicles more cost effective, economical, efficient and more widely used. In order to advance the development of a hydrogen future in Southern Nevada, project partners recognized a need to bring various entities involved in hydrogen development and deployment together as a means of sharing knowledge and eliminating duplication of efforts. A road-mapping session was held in Las Vegas in June 2006. The Nevada State Energy Office, representatives from DOE, DOE contractors and LANL, NETL, NREL were present. Leadership from the National hydrogen Association Board of Directors also attended. As a result of this session, a roadmap for hydrogen development was created. This roadmap has the ability to become a tool for use by other road-mapping efforts in the hydrogen community. It could also become a standard template for other states or even countries to approach planning for a hydrogen future. Project partners also conducted a workshop on hydrogen safety and permitting. This provided an opportunity for the various permitting agencies and end users to gather to share experiences and knowledge. As a result of this workshop, the permitting process for the hydrogen filling station on the Las Vegas Valley Water Districts land was done more efficiently and those who would be responsible for the operation were better educated on the safety and reliability of hydrogen production and storage. The lessons learned in permitting the filling station and conducting this workshop provided a basis for future hydrogen projects in the region. Continuing efforts to increase the working pressure of electrolysis and efficiency have been pursued. Research was also performed on improving the cost, efficiency and durability of Proton Exchange Membrane (PEM) hydrogen technology. Research elements focused upon PEM membranes, electrodes/catalysts, membrane-electrode assemblies, seals, bipolar plates, utilization of renewable power, reliability issues, scale, and advanced conversion topics. Additionally, direct solar-to-hydrogen conversion research to demonstrate stable and efficient photoelectrochemistry (PEC) hydrogen production systems based on a number of optional concepts was performed. Candidate PEC concepts included technical obstacles such as inefficient photocatalysis, inadequate photocurrent due to non-optimal material band gap energies, rapid electron-hole recombination, reduced hole mobility and diminished operational lifetimes of surface materials exposed to electrolytes. Project Objective 1: Design, build, operate hydrogen filling station Project Objective 2: Perform research and development for utilizing solar technologies on the hydrogen filling station and convert two utility vehicles for use by the station operators Project Objective 3: Increase capacity of hydrogen filling station; add additional vehicle; conduct safety workshop; develop a roadmap for hydrogen development; accelerate the development of photovoltaic components Project Objective 4:

  18. NREL Photoelectrode Research Advances Hydrogen Production Efforts

    SciTech Connect (OSTI)

    Gu, Jing

    2015-12-01

    Scientists have created a high-performing photoelectrode that boosts the ability of solar water-splitting to produce hydrogen.

  19. Grain boundary depletion and migration during selective oxidation of Cr in a Ni-5Cr binary alloy exposed to high-temperature hydrogenated water

    SciTech Connect (OSTI)

    Schreiber, Daniel K.; Olszta, Matthew J.; Bruemmer, Stephen M.

    2014-10-01

    High-resolution microscopy of a high-purity Ni-5Cr alloy exposed to 360C hydrogenated water reveals intergranular selective oxidation of Cr accompanied by local Cr depletion and diffusion-induced grain boundary migration (DIGM). The corrosion-product oxide consists of a porous, interconnected network of Cr2O3 platelets with no further O ingress into the metal ahead. Extensive grain boundary depletion of Cr (to <0.05at.%) is observed typically 20100 nm wide as a result of DIGM and reaching depths of many micrometers beyond the oxidation front.

  20. Hydrogenation of carbonaceous materials

    DOE Patents [OSTI]

    Friedman, Joseph (Encino, CA); Oberg, Carl L. (Canoga Park, CA); Russell, Larry H. (Agoura, CA)

    1980-01-01

    A method for reacting pulverized coal with heated hydrogen-rich gas to form hydrocarbon liquids suitable for conversion to fuels wherein the reaction involves injection of pulverized coal entrained in a minimum amount of gas and mixing the entrained coal at ambient temperature with a separate source of heated hydrogen. In accordance with the present invention, the hydrogen is heated by reacting a small portion of the hydrogen-rich gas with oxygen in a first reaction zone to form a gas stream having a temperature in excess of about 1000.degree. C. and comprising a major amount of hydrogen and a minor amount of water vapor. The coal particles then are reacted with the hydrogen in a second reaction zone downstream of the first reaction zone. The products of reaction may be rapidly quenched as they exit the second reaction zone and are subsequently collected.

  1. Hydrogen sensor

    DOE Patents [OSTI]

    Duan, Yixiang (Los Alamos, NM); Jia, Quanxi (Los Alamos, NM); Cao, Wenqing (Katy, TX)

    2010-11-23

    A hydrogen sensor for detecting/quantitating hydrogen and hydrogen isotopes includes a sampling line and a microplasma generator that excites hydrogen from a gas sample and produces light emission from excited hydrogen. A power supply provides power to the microplasma generator, and a spectrometer generates an emission spectrum from the light emission. A programmable computer is adapted for determining whether or not the gas sample includes hydrogen, and for quantitating the amount of hydrogen and/or hydrogen isotopes are present in the gas sample.

  2. Hydrogen production from carbonaceous material

    DOE Patents [OSTI]

    Lackner, Klaus S.; Ziock, Hans J.; Harrison, Douglas P.

    2004-09-14

    Hydrogen is produced from solid or liquid carbon-containing fuels in a two-step process. The fuel is gasified with hydrogen in a hydrogenation reaction to produce a methane-rich gaseous reaction product, which is then reacted with water and calcium oxide in a hydrogen production and carbonation reaction to produce hydrogen and calcium carbonate. The calcium carbonate may be continuously removed from the hydrogen production and carbonation reaction zone and calcined to regenerate calcium oxide, which may be reintroduced into the hydrogen production and carbonation reaction zone. Hydrogen produced in the hydrogen production and carbonation reaction is more than sufficient both to provide the energy necessary for the calcination reaction and also to sustain the hydrogenation of the coal in the gasification reaction. The excess hydrogen is available for energy production or other purposes. Substantially all of the carbon introduced as fuel ultimately emerges from the invention process in a stream of substantially pure carbon dioxide. The water necessary for the hydrogen production and carbonation reaction may be introduced into both the gasification and hydrogen production and carbonation reactions, and allocated so as transfer the exothermic heat of reaction of the gasification reaction to the endothermic hydrogen production and carbonation reaction.

  3. Chromatographic hydrogen isotope separation

    DOE Patents [OSTI]

    Aldridge, Frederick T. (Livermore, CA)

    1981-01-01

    Intermetallic compounds with the CaCu.sub.5 type of crystal structure, particularly LaNiCo.sub.4 and CaNi.sub.5, exhibit high separation factors and fast equilibrium times and therefore are useful for packing a chromatographic hydrogen isotope separation colum. The addition of an inert metal to dilute the hydride improves performance of the column. A large scale mutli-stage chromatographic separation process run as a secondary process off a hydrogen feedstream from an industrial plant which uses large volumes of hydrogen can produce large quantities of heavy water at an effective cost for use in heavy water reactors.

  4. Hydrogen Production | Department of Energy

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

    Production Hydrogen Production Hydrogen Production Hydrogen is the simplest element on earth-it consists of only one proton and one electron-and it is an energy carrier, not an energy source. Hydrogen can store and deliver usable energy, but it doesn't typically exist by itself in nature and must be produced from compounds that contain it. WHY STUDY HYDROGEN PRODUCTION Hydrogen can be used in fuel cells to generate power using a chemical reaction rather than combustion, producing only water and

  5. Hydrogenation apparatus

    DOE Patents [OSTI]

    Friedman, Joseph (Encino, CA); Oberg, Carl L. (Canoga Park, CA); Russell, Larry H. (Agoura, CA)

    1981-01-01

    Hydrogenation reaction apparatus comprising a housing having walls which define a reaction zone and conduits for introducing streams of hydrogen and oxygen into the reaction zone, the oxygen being introduced into a central portion of the hydrogen stream to maintain a boundary layer of hydrogen along the walls of the reaction zone. A portion of the hydrogen and all of the oxygen react to produce a heated gas stream having a temperature within the range of from 1100.degree. to 1900.degree. C., while the boundary layer of hydrogen maintains the wall temperature at a substantially lower temperature. The heated gas stream is introduced into a hydrogenation reaction zone and provides the source of heat and hydrogen for a hydrogenation reaction. There also is provided means for quenching the products of the hydrogenation reaction. The present invention is particularly suitable for the hydrogenation of low-value solid carbonaceous materials to provide high yields of more valuable liquid and gaseous products.

  6. Hydrogen Fuel Basics | Department of Energy

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

    Renewable Energy » Hydrogen & Fuel Cells » Hydrogen Fuel Basics Hydrogen Fuel Basics August 14, 2013 - 2:06pm Addthis Hydrogen is a clean fuel that, when consumed, produces only water. Hydrogen can be produced from a variety of domestic sources, such as coal, natural gas, nuclear power, and renewable power. These qualities make it an attractive fuel option for transportation and electricity generation applications. Hydrogen is an energy carrier that can be used to store, move, and deliver

  7. Analysis of palladium coatings to remove hydrogen isotopes from zirconium fuel rods in Canada deuterium uranium-pressurized heavy water reactors; Thermal and neutron diffusion effects

    SciTech Connect (OSTI)

    Stokes, C.L.; Buxbaum, R.E. )

    1992-05-01

    This paper reports that, in pressurized heavy water nuclear reactors of the type standardly used in Canada (Canada deuterium uranium-pressurized heavy water reactors), the zirconium alloy pressure tubes of the core absorb deuterium produced by corrosion reactions. This deuterium weakens the tubes through hydrogen embrittlement. Thin palladium coatings on the outside of the zirconium are analyzed as a method for deuterium removal. This coating is expected to catalyze the reaction D{sub 2} + 1/2O{sub 2} {r reversible} D{sub 2}O when O{sub 2} is added to the annular (insulating) gas in the tubes. Major reductions in the deuterium concentration and, hence, hydrogen embrittlement are predicted. Potential problems such as plating the tube geometry, neutron absorption, catalyst deactivation, radioactive waste production, and oxygen corrosion are shown to be manageable. Also, a simple set of equations are derived to calculate the effect on diffusion caused by neutron interactions. Based on calculations of ordinary and neutron flux induced diffusion, a palladium coating of 1 {times} 10{sup {minus}6} m is recommended. This would cost approximately $60,000 per reactor unit and should more than double reactor lifetime. Similar coatings and similar interdiffusion calculations might have broad applications.

  8. Long-term surveillance plan for the Falls City Disposal Site, Falls City, Texas. Revision 2

    SciTech Connect (OSTI)

    1996-11-01

    The need for ground water monitoring at the Falls City disposal site was evaluated in accordance with NRC regulations and guidelines established by the DOE in Guidance for Implementing the Long-term Surveillance Program for UMTRA Project Title 1 Disposal Sites (DOE, 1996). Based on evaluation of site characterization data, it has been determined that a program to monitor ground water for demonstration of disposal cell performance based on a set of concentration limits is not appropriate because ground water in the uppermost aquifer is of limited use, and a narrative supplemental standard has been applied to the site that does not include numerical concentration limits or a point of compliance. The limited use designation is based on the fact that ground water in the uppermost aquifer is not currently or potentially a source of drinking water in the area because it contains widespread ambient contamination that cannot be cleaned up using methods reasonably employed by public water supply systems. Background ground water quality varies by orders of magnitude since the aquifer is in an area of redistribution of uranium mineralization derived from ore bodies. The DOE plans to perform post-closure ground water monitoring in the uppermost aquifer as a best management practice (BMP) as requested by the state of Texas.

  9. Benton Falls Associates | Open Energy Information

    Open Energy Info (EERE)

    Falls Associates Place: Maine Sector: Hydro Product: Owns and operates a 4.3MW hydroelectric plant in Benton. References: Benton Falls Associates1 This article is a stub....

  10. Save Energy and be Festive this Fall

    Broader source: Energy.gov [DOE]

    Fall means cooler weather, changing leaves, and festive decorations, now your decorations can help save energy too!

  11. DOE - Office of Legacy Management -- Falls

    Office of Legacy Management (LM)

    Texas Falls City, Texas, Disposal Site UMTRCA Title I site falls_map The Falls City Disposal Site, an Uranium Mill Tailings Radiation Control Act (UMTRCA) Title I disposal site, is licensed to DOE for long-term custody and managed by the Office of Legacy Management. The site transferred to the Office of Legacy Management in 2003 and requires routine inspection and maintenance, records-related activities, and stakeholder support. For more information about the Falls City site, view the fact

  12. Falls City, Texas, Disposal Site Fact Sheet

    Office of Legacy Management (LM)

    Falls City, Texas, Disposal Site This fact sheet provides information about the Uranium Mill Tailings Radiation Control Act of 1978 Title I disposal site located at Falls City, Texas. The site is managed by the U.S. Department of Energy Office of Legacy Management. Location of the Falls City Disposal Site Site Description and History The Falls City disposal site is the location of a former uranium-ore processing facility in Karnes County, Texas, approximately 40 miles southeast of San Antonio

  13. Fall 2013 Composite Data Products - Backup Power

    SciTech Connect (OSTI)

    Kurtz, J.; Sprik, S.; Ainscough, C.; Saur, G.; Post, M.; Peters, M.

    2013-12-01

    This report includes 28 composite data products (CDPs) produced in Fall 2013 for fuel cell backup power systems.

  14. Energy Department Invests $20 Million to Advance Hydrogen Production...

    Office of Environmental Management (EM)

    20 Million to Advance Hydrogen Production and Delivery Technologies Energy Department Invests 20 Million ... materials that can produce hydrogen from water using solar energy. ...

  15. Validation of Hydrogen Exchange Methodology on Molecular Sieves...

    Office of Environmental Management (EM)

    Validation of Hydrogen Exchange Methodology on Molecular Sieves for Tritium Removal from Contaminated Water Validation of Hydrogen Exchange Methodology on Molecular Sieves for...

  16. Polymer formulations for gettering hydrogen

    DOE Patents [OSTI]

    Shepodd, T.J.; Whinnery, L.L.

    1998-11-17

    A novel composition is described comprising organic polymer molecules having carbon-carbon double bonds, for removing hydrogen from the atmosphere within enclosed spaces. Organic polymers molecules containing carbon-carbon double bonds throughout their structures, preferably polybutadiene, polyisoprene and derivatives thereof, intimately mixed with an insoluble catalyst composition, comprising a hydrogenation catalyst and a catalyst support, preferably Pd supported on carbon, provide a hydrogen getter composition useful for removing hydrogen from enclosed spaces even in the presence of contaminants such as common atmospheric gases, water vapor, carbon dioxide, ammonia, oil mists, and water. The hydrogen getter composition disclosed herein is particularly useful for removing hydrogen from enclosed spaces containing potentially explosive mixtures of hydrogen and oxygen. 1 fig.

  17. Polymer formulations for gettering hydrogen

    DOE Patents [OSTI]

    Shepodd, Timothy Jon (Livermore, CA); Whinnery, LeRoy L. (Livermore, CA)

    1998-11-17

    A novel composition comprising organic polymer molecules having carbon-carbon double bonds, for removing hydrogen from the atmosphere within enclosed spaces. Organic polymers molecules containing carbon-carbon double bonds throughout their structures, preferably polybutadiene, polyisoprene and derivatives thereof, intimately mixed with an insoluble catalyst composition, comprising a hydrogenation catalyst and a catalyst support, preferably Pd supported on carbon, provide a hydrogen getter composition useful for removing hydrogen from enclosed spaces even in the presence of contaminants such as common atmospheric gases, water vapor, carbon dioxide, ammonia, oil mists, and water. The hydrogen getter composition disclosed herein is particularly useful for removing hydrogen from enclosed spaces containing potentially explosive mixtures of hydrogen and oxygen.

  18. Polymer system for gettering hydrogen

    DOE Patents [OSTI]

    Shepodd, Timothy Jon (330 Thrasher Ave., Livermore, Alameda County, CA 94550); Whinnery, LeRoy L. (4929 Julie St., Livermore, Alameda County, CA 94550)

    2000-01-01

    A novel composition comprising organic polymer molecules having carbon-carbon double bonds, for removing hydrogen from the atmosphere within enclosed spaces. Organic polymers molecules containing carbon-carbon double bonds throughout their structures, preferably polybutadiene, polyisoprene and derivatives thereof, intimately mixed with an insoluble catalyst composition, comprising a hydrogenation catalyst and a catalyst support, preferably Pd supported on carbon, provide a hydrogen getter composition useful for removing hydrogen from enclosed spaces even in the presence of contaminants such as common atmospheric gases, water vapor, carbon dioxide, ammonia, oil mists, and water. The hydrogen getter composition disclosed herein is particularly useful for removing hydrogen from enclosed spaces containing potentially explosive mixtures of hydrogen and oxygen.

  19. Oxidation resistant organic hydrogen getters

    DOE Patents [OSTI]

    Shepodd, Timothy J. (Livermore, CA); Buffleben, George M. (Tracy, CA)

    2008-09-09

    A composition for removing hydrogen from an atmosphere, comprising a mixture of a polyphenyl ether and a hydrogenation catalyst, preferably a precious metal catalyst, and most preferably Pt. This composition is stable in the presence of oxygen, will not polymerize or degrade upon exposure to temperatures in excess of 200.degree. C., or prolonged exposure to temperatures in the range of 100-300.degree. C. Moreover, these novel hydrogen getter materials can be used to efficiently removing hydrogen from mixtures of hydrogen/inert gas (e.g., He, Ar, N.sub.2), hydrogen/ammonia atmospheres, such as may be encountered in heat exchangers, and hydrogen/carbon dioxide atmospheres. Water vapor and common atmospheric gases have no adverse effect on the ability of these getter materials to absorb hydrogen.

  20. Lessons Learned: Peer Exchange Calls Fall 2014 | Department of...

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

    Fall 2014 Lessons Learned: Peer Exchange Calls Fall 2014 Better Buildings Residential Network, Lessons Learned: Peer Exchange Calls Fall 2014. PDF icon Lessons Learned: Peer...

  1. Hydrogen Safety

    Fuel Cell Technologies Publication and Product Library (EERE)

    This 2-page fact sheet, intended for a non-technical audience, explains the basic properties of hydrogen and provides an overview of issues related to the safe use of hydrogen as an energy carrier.

  2. Hydrogen Storage

    Fuel Cell Technologies Publication and Product Library (EERE)

    This 2-page fact sheet provides a brief introduction to hydrogen storage technologies. Intended for a non-technical audience, it explains the different ways in which hydrogen can be stored, as well a

  3. HMNewsFall06 Reprint

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

    fi c e o f F o s s i l E n e r g y * N a t i o n a l E n e r g y T e c h n o l o g y L a b o r a t o r y CONTaCT Ray Boswell Technology Manager-Methane Hydrates, Strategic Center for Natural Gas & Oil 304-285-4541 ray.boswell@netl.doe.gov Methane Hydrate Newsletter Reprinted from the Fall 2006 1 The Gas hydraTes resource Pyramid Ray Boswell (US DOE/NETL) and Tim Collett (USGS) Over the past six years, the U.S. National Methane Hydrate R&D Program has worked to clarify the resource

  4. Hydrogen Production

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

    Production Hydrogen is an energy carrier, not an energy source-hydrogen stores and delivers energy in a usable form, but it must be produced from hydrogen- containing compounds. Hydrogen can be produced using diverse, domestic resources including fossil fuels, such as natural gas and coal (preferentially with carbon capture, utilization, and storage); biomass grown from renewable, non-food crops; or using nuclear energy and renewable energy sources, such as wind, solar, geothermal, and

  5. Hydrogen Production

    SciTech Connect (OSTI)

    2014-09-01

    This 2-page fact sheet provides a brief introduction to hydrogen production technologies. Intended for a non-technical audience, it explains how different resources and processes can be used to produce hydrogen. It includes an overview of research goals as well as “quick facts” about hydrogen energy resources and production technologies.

  6. Current (2009) State-of-the-Art Hydrogen Production Cost Estimate...

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

    Current (2009) State-of-the-Art Hydrogen Production Cost Estimate Using Water Electrolysis Current (2009) State-of-the-Art Hydrogen Production Cost Estimate Using Water ...

  7. Process analysis and economics of biophotolysis of water. IEA technical report from the IEA Agreement on the Production and Utilization of Hydrogen

    SciTech Connect (OSTI)

    Benemann, J.R.

    1998-03-31

    This report is a preliminary cost analysis of the biophotolysis of water and was prepared as part of the work of Annex 10 of the IEA Hydrogen agreement. Biophotolysis is the conversion of water and solar energy to hydrogen and oxygen using microalgae. In laboratory experiments at low light intensities, algal photosynthesis and some biophotolysis reactions exhibit highlight conversion efficiencies that could be extrapolated to about 10% solar efficiencies if photosynthesis were to saturate at full sunlight intensities. The most promising approach to achieving the critical goal of high conversion efficiencies at full sunlight intensities, one that appears within the capabilities of modern biotechnology, is to genetically control the pigment content of algal cells such that the photosynthetic apparatus does not capture more photons than it can utilize. A two-stage indirect biophotolysis system was conceptualized and general design parameters extrapolated. The process comprises open ponds for the CO{sub 2}fixation stage, an algal concentration step, a dark adaptation and fermentation stage, and a closed tubular photobioreactor in which hydrogen production would take place. A preliminary cost analysis for a 200 hectare (ha) system, including 140 ha of open algal ponds and 14 ha of photobioreactors was carried out. The cost analysis was based on prior studies for algal mass cultures for fuels production and a conceptual analysis of a hypothetical photochemical processes, as well as the assumption that the photobioreactors would cost about $100/m(sup 2). Assuming a very favorable location, with 21 megajoules (MJ)/m{sup 2} total insolation, and a solar conversion efficiency of 10% based on CO{sub 2} fixation in the large algal ponds, an overall cost of $10/gigajoule (GJ) is projected. Of this, almost half is due to the photobioreactors, one fourth to the open pond system, and the remainder to the H{sub 2} handling and general support systems. It must be cautioned that these are highly preliminary, incomplete, and optimistic estimates. Biophotolysis processes, indirect or direct, clearly require considerable basic and applied R and D before a more detailed evaluation of their potential and plausible economics can be carried out. For example, it is not yet clear which type of algae, green algae, or cyanobacteria, would be preferred in biophotolysis. If lower-cost photobioreactors can be developed, then small-scale (<1 ha) single-stage biophotolysis processes may become economically feasible. A major basic and applied R and D effort will be required to develop such biophotolysis processes.

  8. Hydrogen Production Processes | Department of Energy

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

    Processes Hydrogen Production Processes Hydrogen can be produced using a number of different processes. Thermochemical processes use heat and chemical reactions to release hydrogen from organic materials such as fossil fuels and biomass. Water (H2O) can be split into hydrogen (H2) and oxygen (O2) using electrolysis or solar energy. Microorganisms such as bacteria and algae can produce hydrogen through biological processes. Thermochemical Processes Some thermal processes use the energy in various

  9. Hydrogen Production: Electrolysis | Department of Energy

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

    » Processes » Hydrogen Production: Electrolysis Hydrogen Production: Electrolysis Electrolysis is a promising option for hydrogen production from renewable resources. Electrolysis is the process of using electricity to split water into hydrogen and oxygen. This reaction takes place in a unit called an electrolyzer. Electrolyzers can range in size from small, appliance-size equipment that is well-suited for small-scale distributed hydrogen production to large-scale, central production

  10. Hydrogen & Fuel Cells | Department of Energy

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

    Efficiency » Vehicles » Hydrogen & Fuel Cells Hydrogen & Fuel Cells Watch this video to find out how fuel cell technology generates clean electricity from hydrogen to power our buildings and transportation-while emitting nothing but water. Learn more about hydrogen and fuel cell technology basics. Fuel cells produce electricity from a number of domestic fuels, including hydrogen and renewables, and can provide power for virtually any application -- from cars and buses to commercial

  11. IDENTIFYING ROOF FALL PREDICTORS USING FUZZY CLASSIFICATION

    SciTech Connect (OSTI)

    Bertoncini, C. A.; Hinders, M. K.

    2010-02-22

    Microseismic monitoring involves placing geophones on the rock surfaces of a mine to record seismic activity. Classification of microseismic mine data can be used to predict seismic events in a mine to mitigate mining hazards, such as roof falls, where properly bolting and bracing the roof is often an insufficient method of preventing weak roofs from destabilizing. In this study, six months of recorded acoustic waveforms from microseismic monitoring in a Pennsylvania limestone mine were analyzed using classification techniques to predict roof falls. Fuzzy classification using features selected for computational ease was applied on the mine data. Both large roof fall events could be predicted using a Roof Fall Index (RFI) metric calculated from the results of the fuzzy classification. RFI was successfully used to resolve the two significant roof fall events and predicted both events by at least 15 hours before visual signs of the roof falls were evident.

  12. Hydrogenation apparatus

    DOE Patents [OSTI]

    Friedman, J.; Oberg, C. L.; Russell, L. H.

    1981-06-23

    Hydrogenation reaction apparatus is described comprising a housing having walls which define a reaction zone and conduits for introducing streams of hydrogen and oxygen into the reaction zone, the oxygen being introduced into a central portion of the hydrogen stream to maintain a boundary layer of hydrogen along the walls of the reaction zone. A portion of the hydrogen and all of the oxygen react to produce a heated gas stream having a temperature within the range of from 1,100 to 1,900 C, while the boundary layer of hydrogen maintains the wall temperature at a substantially lower temperature. The heated gas stream is introduced into a hydrogenation reaction zone and provides the source of heat and hydrogen for a hydrogenation reaction. There also is provided means for quenching the products of the hydrogenation reaction. The present invention is particularly suitable for the hydrogenation of low-value solid carbonaceous materials to provide high yields of more valuable liquid and gaseous products. 2 figs.

  13. UVIG Fall Technical Workshop | Department of Energy

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

    UVIG Fall Technical Workshop UVIG Fall Technical Workshop October 13, 2015 8:00AM PDT to October 15, 2015 5:00PM PDT San Diego, California The 2015 UVIG Fall Technical Workshop will provide attendees with an expanded perspective on the status of wind and solar integration and interconnection to utility systems in the United States and other countries. The technical workshop agenda focuses on a number of topics related to integration and interconnection of wind and solar generation. Events

  14. Optimized Hydrogen and Electricity Generation from Wind | Department of

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

    Energy Optimized Hydrogen and Electricity Generation from Wind Optimized Hydrogen and Electricity Generation from Wind Several optimizations can be employed to create hydrogen and electricity from a wind energy source. The key element in hydrogen production from an electrical source is an electrolyzer to convert water and electricity into hydrogen and oxygen. PDF icon 34364.pdf More Documents & Publications Current (2009) State-of-the-Art Hydrogen Production Cost Estimate Using Water

  15. NREL: Hydrogen and Fuel Cells Research - Hydrogen Production Cost Analysis

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

    Hydrogen Production Cost Analysis NREL analyzed the cost of hydrogen production via wind-based water electrolysis at 42 potential sites in 11 states across the nation. This analysis included centralized plants producing the Department of Energy (DOE) target of 50,000 kg of hydrogen per day, using both wind and grid electricity. The use of wind and grid electricity can be balanced either by power or cost, including or excluding the purchase of peak summer electricity. Current wind incentives-such

  16. Fall Protection Can Prevent Serious Injuries

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

    protection requirements were not followed. According to the Occupational Safety and Health Administration (OSHA), falls from elevations, including into holes in floors, are the...

  17. hydrogen | netl.doe.gov

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

    hydrogen Why Coal to Hydrogen Syngas derived from most high pressure gasification processes already contains a significant amount of hydrogen (H2), which can be increased through water gas shift (WGS) and be readily separated into a pure H2 product meeting industry product quality standards. There are several conventional H2 separation processes, but modern installations preferentially choose pressure swing adsorption (PSA), which is a well-proven technology offering high availability and low

  18. Incorporation of Hydrogen Bonding Functionalities into the Second Coordination Sphere of Iron-Based Water Oxidation Catalysts

    SciTech Connect (OSTI)

    Hoffert, Wesley A.; Mock, Michael T.; Appel, Aaron M.; Yang, Jenny Y.

    2013-08-06

    Energy storage and conversion schemes based on environmentally benign chemical fuels will require the discovery of faster, cheaper, and more robust catalysts for the oxygen evolution reaction (OER). Although pendant bases have led to enhanced turnover frequencies with non-aqueous substrates, their effect on the catalytic behavior of molecular water oxidation catalysts has received little attention. Herein, the syntheses, structures, and catalytic activities of new iron complexes with pendant bases are reported. Of these, the complex [Fe(mepydz)4(CH3CN)2](OTf)2 (mepydz = N,N?-dimethyl-N,N?-bis(pyridazin-3-ylmethyl)ethane-1,2-diamine, OTf = trifluoromethanesulonate) (8(CH3CN)22+) is the most active catalyst. Initial turnover frequencies of 141 h?1 and 24 h?1 were measured using ceric ammonium nitrate at pH 0.7 and sodium periodate at pH 4.7, respectively. At pH 4.7, 8(CH3CN)22+ the initial turnover frequency is 70% faster than the structurally analogous complex without ancillary proton relays. These results demonstrate that the incorporation of pendant bases into molecular water oxidation catalysts is a synthetic principle that should be considered in the development of new OER catalysts. This work was supported by Laboratory Directed Research and Development program at Pacific Northwest National Laboratory (PNNL). PNNL is operated by Battelle for the US Department of Energy.

  19. Hydrogen Scenarios

    Broader source: Energy.gov [DOE]

    Presentation by Frances Wood of OnLocation Inc. at the Joint Meeting on Hydrogen Delivery Modeling and Analysis, May 8-9, 2007

  20. Hydrogen Liquefaction

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

    Internationally 4-7 European Installations 4-6 Japanese Installations India Program ESA French Guiana (South America) 4 Satisfies ASME J-2719 (hydrogen ...

  1. Iron-ceria Aerogels Doped with Palladium as Water-gas Shift Catalysts for the Production of Hydrogen

    SciTech Connect (OSTI)

    Bali, S.; Huggins, F; Ernst, R; Pugmire, R; Huffman, G; Eyring, E

    2010-01-01

    Mixed 4.5% iron oxide-95.5% cerium oxide aerogels doped with 1% and 2% palladium (Pd) by weight have been synthesized, and their activities for the catalysis of water-gas shift (WGS) reaction have been determined. The aerogels were synthesized using propylene oxide as the proton scavenger for the initiation of hydrolysis and polycondensation of a homogeneous alcoholic solution of cerium(III) chloride heptahydrate and iron(III) chloride hexahydrate precursor. Palladium was doped onto some of these materials by gas-phase incorporation (GPI) using ({eta}{sup 3}-allyl)({eta}{sup 5}-cyclopentadienyl)palladium as the volatile Pd precursor. Water-gas shift catalytic activities were evaluated in a six-channel fixed-bed reactor at atmospheric pressure and reaction temperatures ranging from 150 to 350 C. Both 1% and 2% Pd-doped 4.5% iron oxide-95.5% cerium oxide aerogels showed WGS activities that increased significantly from 150 to 350 C. The activities of 1% Pd-doped 4.5% iron oxide-95.5% cerium oxide aerogels were also compared with that of the 1% Pd-doped ceria aerogel without iron. The WGS activity of 1% Pd on 4.5% iron oxide-95.5% cerium oxide aerogels is substantially higher (5 times) than the activity of 1% Pd-doped ceria aerogel without iron. The gas-phase incorporation results in a better Pd dispersion. Ceria aerogel provides a nonrigid structure wherein iron is not significantly incorporated inside the matrix, thereby resulting in better contact between the Fe and Pd and thus enhancing the WGS activity. Further, neither Fe nor Pd is reduced during the ceria-aerogel-catalyzed WGS reaction. This behavior contrasts with that noted for other Fe-based WGS catalysts, in which the original ferric oxide is typically reduced to a nonstoichiometric magnetite form.

  2. Hydrogen | Open Energy Information

    Open Energy Info (EERE)

    Hydrogen Jump to: navigation, search TODO: Add description Related Links List of Companies in Hydrogen Sector List of Hydrogen Incentives Hydrogen Energy Data Book Retrieved from...

  3. Production of hydrogen from alcohols

    DOE Patents [OSTI]

    Deluga, Gregg A. (St. Paul, MN); Schmidt, Lanny D. (Minneapolis, MN)

    2007-08-14

    A process for producing hydrogen from ethanol or other alcohols. The alcohol, optionally in combination with water, is contacted with a catalyst comprising rhodium. The overall process is preferably carried out under autothermal conditions.

  4. Hydrogen Embrittlement of Pipeline Steels: Causes and Remediation...

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

    Barriers: Hydrogen embrittlement of pipelines and remediation (mixing with water vapor?) PDF icon hpwgwembrittlementsteelssofronis.pdf More Documents & Publications Webinar:...

  5. ARM - Field Campaign - Fall 1997 SCM IOP

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

    govCampaignsFall 1997 SCM IOP ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Campaign : Fall 1997 SCM IOP 1997.09.15 - 1997.10.05 Lead Scientist : David Randall Data Availability The fall 1997 SCM IOP was conducted from 1500 UTC on September 15, 1997, to 0300 UTC October 6, 1997. During this time, 817 soundings were launched that reported data. This represents 99.0 percent of the potential 825 soundings flown (165

  6. Purdue Hydrogen Systems Laboratory

    SciTech Connect (OSTI)

    Jay P Gore; Robert Kramer; Timothee L Pourpoint; P. V. Ramachandran; Arvind Varma; Yuan Zheng

    2011-12-28

    The Hydrogen Systems Laboratory in a unique partnership between Purdue University's main campus in West Lafayette and the Calumet campus was established and its capabilities were enhanced towards technology demonstrators. The laboratory engaged in basic research in hydrogen production and storage and initiated engineering systems research with performance goals established as per the USDOE Hydrogen, Fuel Cells, and Infrastructure Technologies Program. In the chemical storage and recycling part of the project, we worked towards maximum recycling yield via novel chemical selection and novel recycling pathways. With the basic potential of a large hydrogen yield from AB, we used it as an example chemical but have also discovered its limitations. Further, we discovered alternate storage chemicals that appear to have advantages over AB. We improved the slurry hydrolysis approach by using advanced slurry/solution mixing techniques. We demonstrated vehicle scale aqueous and non-aqueous slurry reactors to address various engineering issues in on-board chemical hydrogen storage systems. We measured the thermal properties of raw and spent AB. Further, we conducted experiments to determine reaction mechanisms and kinetics of hydrothermolysis in hydride-rich solutions and slurries. We also developed a continuous flow reactor and a laboratory scale fuel cell power generation system. The biological hydrogen production work summarized as Task 4.0 below, included investigating optimal hydrogen production cultures for different substrates, reducing the water content in the substrate, and integrating results from vacuum tube solar collector based pre and post processing tests into an enhanced energy system model. An automated testing device was used to finalize optimal hydrogen production conditions using statistical procedures. A 3 L commercial fermentor (New Brunswick, BioFlo 115) was used to finalize testing of larger samples and to consider issues related to scale up. Efforts continued to explore existing catalytic methods involving nano catalysts for capture of CO2 from the fermentation process.

  7. Energy Secretary Highlights Hydrogen Fuel Initiative In Western New York |

    Energy Savers [EERE]

    Department of Energy Hydrogen Fuel Initiative In Western New York Energy Secretary Highlights Hydrogen Fuel Initiative In Western New York February 23, 2006 - 12:23pm Addthis HONEOYE FALLS, NY - Department of Energy (DOE) Secretary Samuel W. Bodman highlighted President Bush's $1.2 billion, five-year commitment to the Hydrogen Fuel Initiative while visiting General Motors Fuel Cell Activities in western New York today. As part of President Bush's Advanced Energy Initiative, the Fiscal Year

  8. High-Temperature Falling-Particle Receiver

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

    conceptual drawing illustrates a high-temperature falling-particle receiver system that ... the potential to increase the maximum temperature of the heat-transfer media to more than ...

  9. Idaho Falls Power- Residential Weatherization Loan Program

    Office of Energy Efficiency and Renewable Energy (EERE)

    Residential customers with permanently installed electric heat who receive service from the City of Idaho Falls, are eligible for 0% weatherization loans. City Energy Service will conduct an energy...

  10. Fall 2012 FUPWG Meeting Welcome: Southern Company

    Broader source: Energy.gov [DOE]

    Presentation—given at the Fall 2012 Federal Utility Partnership Working Group (FUPWG) meeting—covers the Southern Company's retail service territory, financials, customers and sales, power generation, U.S. military projects, and more.

  11. Better Plants Progress Update Fall 2013

    Broader source: Energy.gov [DOE]

    The Fall 2013 Progress Update chronicles the Better Buildings Programs efforts to capture cost-effective energy-saving opportunities and demonstrate that strong energy management practices are good for business, good for the economy, and good for the environment.

  12. Support of a pathway to a hydrogen future

    SciTech Connect (OSTI)

    Hoffman, A.R.

    1997-12-31

    This paper consists of viewgraphs which outline the content of the presentation. Subjects addressed include: hydrogen research program vision; electricity industry restructuring -- opportunities and challenges for hydrogen; transportation sector -- opportunities for hydrogen; near-term and mid-term opportunities for hydrogen; and hydrogen production technologies from water. It is concluded that the global climate change challenge is the potential driver for the development of hydrogen systems.

  13. NREL: Hydrogen and Fuel Cells Research - Projects

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

    Projects Photo of person at work in laboratory setting. NREL scientist tests a photoelectrochemical water-splitting system used for renewable hydrogen production. Photo by Dennis Schroeder, NREL NREL hydrogen and fuel cell research projects support the development and adoption of cost-effective, high-performance fuel cell systems and sustainable hydrogen technologies for transportation, stationary, and portable applications. Learn about our projects: Fuel cells Hydrogen production and delivery

  14. Energetics of Hydrogen Bond Network Rearrangements in Liquid...

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

    Energetics of Hydrogen Bond Network Rearrangements in Liquid Water Print The unique chemical and physical properties of liquid water are thought to result from the highly...

  15. Hydrogen Production

    Fuel Cell Technologies Publication and Product Library (EERE)

    This 2-page fact sheet provides a brief introduction to hydrogen production technologies. Intended for a non-technical audience, it explains how different resources and processes can be used to produ

  16. BLM Twin Falls District Office | Open Energy Information

    Open Energy Info (EERE)

    Falls District Office Jump to: navigation, search Name: BLM Twin Falls District Office Address: 2536 Kimberly Road Place: Twin Falls, ID Zip: 83301 Phone Number: 208-735-2060...

  17. BLM Idaho Falls District Office | Open Energy Information

    Open Energy Info (EERE)

    Falls District Office Jump to: navigation, search Name: BLM Idaho Falls District Office Address: 1405 Hollipark Drive Place: Idaho Falls, ID Zip: 83401 Phone Number: 208-524-7500...

  18. Historical Doses from Tritiated Water and Tritiated Hydrogen Gas Released to the Atmosphere from Lawrence Livermore National Laboratory (LLNL). Part 5. Accidental Releases

    SciTech Connect (OSTI)

    Peterson, S

    2007-08-15

    Over the course of fifty-three years, LLNL had six acute releases of tritiated hydrogen gas (HT) and one acute release of tritiated water vapor (HTO) that were too large relative to the annual releases to be included as part of the annual releases from normal operations detailed in Parts 3 and 4 of the Tritium Dose Reconstruction (TDR). Sandia National Laboratories/California (SNL/CA) had one such release of HT and one of HTO. Doses to the maximally exposed individual (MEI) for these accidents have been modeled using an equation derived from the time-dependent tritium model, UFOTRI, and parameter values based on expert judgment. All of these acute releases are described in this report. Doses that could not have been exceeded from the large HT releases of 1965 and 1970 were calculated to be 43 {micro}Sv (4.3 mrem) and 120 {micro}Sv (12 mrem) to an adult, respectively. Two published sets of dose predictions for the accidental HT release in 1970 are compared with the dose predictions of this TDR. The highest predicted dose was for an acute release of HTO in 1954. For this release, the dose that could not have been exceeded was estimated to have been 2 mSv (200 mrem), although, because of the high uncertainty about the predictions, the likely dose may have been as low as 360 {micro}Sv (36 mrem) or less. The estimated maximum exposures from the accidental releases were such that no adverse health effects would be expected. Appendix A lists all accidents and large routine puff releases that have occurred at LLNL and SNL/CA between 1953 and 2005. Appendix B describes the processes unique to tritium that must be modeled after an acute release, some of the time-dependent tritium models being used today, and the results of tests of these models.

  19. 2016 National Fall Prevention Campaign | Department of Energy

    Energy Savers [EERE]

    National Fall Prevention Campaign 2016 National Fall Prevention Campaign March 17, 2016 - 9:07am Addthis 2016 National Fall Prevention Campaign As part of a Fall Prevention event initiated by the Occupational Safety and Health Administration (OSHA), the 3rd Annual National Fall Prevention Campaign will take place on May 2-6. This event is a nationwide voluntary effort to remind and educate employers and workers in the construction industry of the serious dangers regarding falls from elevated

  20. Electrolysis - High Temperature - Hydrogen - Energy Innovation Portal

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

    Electrolysis - High Temperature - Hydrogen Idaho National Laboratory Contact INL About This Technology Technology Marketing Summary INL has developed a high-temperature process the utilizes solid oxide fuel cells that are operated in the electrolytic mode. The first process includes combining a high-temperature heat source (e.g. nuclear reactor) with a hydrogen production facility by taking a stream of water and heating it and then splitting the water into hydrogen and oxygen product streams. A

  1. City of Newton Falls, Ohio (Utility Company) | Open Energy Information

    Open Energy Info (EERE)

    Company) Jump to: navigation, search Name: City of Newton Falls Place: Ohio Website: ci.newtonfalls.oh.us Facebook: https:www.facebook.compagesCity-of-Newton-Falls...

  2. National Small Business Contracting Summit - 2015 Fall | Department...

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

    Small Business Contracting Summit - 2015 Fall National Small Business Contracting Summit - 2015 Fall November 5, 2015 9:00AM to 5:00PM EST Washington, DC...

  3. Niagara Falls, New York: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    Niagara Falls, New York: Energy Resources (Redirected from Niagara Falls, NY) Jump to: navigation, search Equivalent URI DBpedia Coordinates 43.0944999, -79.0567111 Show Map...

  4. Tyson Research Center Tour | Fall 2014 | Photosynthetic Antenna...

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

    | Fall 2014 Tyson Research Center Tour | Fall 2014 Our Events & Topics in Bioenergy & the Environment tours takes us to the Tyson Research Center. Visit their website here: http:...

  5. High-Temperature Falling-Particle Receiver | Department of Energy

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

    High-Temperature Falling-Particle Receiver High-Temperature Falling-Particle Receiver This fact sheet summarizes the Sandia National Laboratories (SNL) project for the DOE Solar ...

  6. The Better Buildings Neighborhood View -- Fall 2011 | Department...

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

    Fall 2011 The Better Buildings Neighborhood View -- Fall 2011 Better Buildings Neighborhood View, from the Better Buildings Neighborhood Program of the U.S. Department of Energy....

  7. Storing Hydrogen

    SciTech Connect (OSTI)

    Kim, Hyun Jeong; Karkamkar, Abhijeet J.; Autrey, Thomas; Chupas, Peter; Proffen, Thomas E.

    2010-05-31

    Researchers have been studying mesoporous materials for almost two decades with a view to using them as hosts for small molecules and scaffolds for molding organic compounds into new hybrid materials and nanoparticles. Their use as potential storage systems for large quantities of hydrogen has also been mooted. Such systems that might hold large quantities of hydrogen safely and in a very compact volume would have enormous potential for powering fuel cell vehicles, for instance. A sponge-like form of silicon dioxide, the stuff of sand particles and computer chips, can soak up and store other compounds including hydrogen. Studies carried out at the XOR/BESSRC 11-ID-B beamline at the APS have revealed that the nanoscopic properties of the hydrogenrich compound ammonia borane help it store hydrogen more efficiently than usual. The material may have potential for addressing the storage issues associated with a future hydrogen economy. Pacific Northwest National Laboratory is operated by Battelle for the US Department of Energy.

  8. Hydrogen Embrittlement of Pipeline Steels: Causes and Remediation |

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

    Department of Energy Barriers: Hydrogen embrittlement of pipelines and remediation (mixing with water vapor?) PDF icon hpwgw_embrittlementsteels_sofronis.pdf More Documents & Publications Webinar: I2CNER: An International Collaboration to Enable a Carbon-Neutral Energy Economy Hydrogen Embrittlement of Pipeline Steels: Causes and Remediation Hydrogen permeability and Integrity of hydrogen transfer pipelines

  9. Thermochemical production of hydrogen

    DOE Patents [OSTI]

    Dreyfuss, Robert M.

    1976-07-13

    A thermochemical reaction cycle for the generation of hydrogen from water comprising the following sequence of reactions wherein M represents a metal and Z represents a metalloid selected from the arsenic-antimony-bismuth and selenium-tellurium subgroups of the periodic system: 2MO + Z + SO.sub.2 .fwdarw. MZ + MSO.sub.4 (1) mz + h.sub.2 so.sub.4 .fwdarw. mso.sub.4 + h.sub.2 z (2) 2mso.sub.4 .fwdarw. 2mo + so.sub.2 + so.sub.3 + 1/20.sub.2 (3) h.sub.2 z .fwdarw. z + h.sub.2 (4) h.sub.2 o + so.sub.3 .fwdarw. h.sub.2 so.sub.4 (5) the net reaction is the decomposition of water into hydrogen and oxygen.

  10. Water-splitting using photocatalytic porphyrin-nanotube composite devices

    DOE Patents [OSTI]

    Shelnutt, John A. (Tijeras, NM); Miller, James E. (Albuquerque, NM); Wang, Zhongchun (Albuquerque, NM); Medforth, Craig J. (Winters, CA)

    2008-03-04

    A method for generating hydrogen by photocatalytic decomposition of water using porphyrin nanotube composites. In some embodiments, both hydrogen and oxygen are generated by photocatalytic decomposition of water.

  11. Hydrogen program overview

    SciTech Connect (OSTI)

    Gronich, S.

    1997-12-31

    This paper consists of viewgraphs which summarize the following: Hydrogen program structure; Goals for hydrogen production research; Goals for hydrogen storage and utilization research; Technology validation; DOE technology validation activities supporting hydrogen pathways; Near-term opportunities for hydrogen; Market for hydrogen; and List of solicitation awards. It is concluded that a full transition toward a hydrogen economy can begin in the next decade.

  12. advanced hydrogen storage materials

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

    hydrogen storage materials - Sandia Energy Energy Search Icon Sandia Home Locations Contact Us Employee Locator Energy & Climate Secure & Sustainable Energy Future Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 Geothermal Natural Gas Safety, Security & Resilience of the Energy Infrastructure Energy Storage Nuclear Power & Engineering Grid Modernization Battery Testing Nuclear Fuel Cycle Defense Waste Management Programs

  13. ARM - Field Campaign - Fall 1997 Aerosol IOP

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

    govCampaignsFall 1997 Aerosol IOP ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Campaign : Fall 1997 Aerosol IOP 1997.09.15 - 1997.10.05 Lead Scientist : Stephen Schwartz For data sets, see below. Summary The Aerosol IOP was highlighted by the Gulfstream-1 aircraft flying clear-sky aerosol missions over the Central Facility to study the effect of aerosol loading on clear sky radiation fields, with weather

  14. ARM - Field Campaign - Fall 1997 Cloud IOP

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

    govCampaignsFall 1997 Cloud IOP ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Campaign : Fall 1997 Cloud IOP 1997.09.15 - 1997.10.05 Lead Scientist : Gerald Mace For data sets, see below. Summary The primary objective of the Cloud IOP was to generate a multi-platform data set that can be used as validation for cloud property retrieval algorithms that are being implemented on the operational MMCR data stream.

  15. Hydrogen Pipeline Working Group Workshop: Code for Hydrogen Pipelines...

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

    Working Group Workshop: Code for Hydrogen Pipelines Hydrogen Pipeline Working Group Workshop: Code for Hydrogen Pipelines Code for Hydrogen Piping and Pipelines. B31 Hydrogen...

  16. Hydrogen | Open Energy Information

    Open Energy Info (EERE)

    Hydrogen Jump to: navigation, search <-- Back to Hydrogen Gateway Technical Reference for Hydrogen Compatibility of Materials KIA FCEV SUNRISE MG 7955 6 7.jpg Guidance on materials...

  17. Hydrogen Transition Infrastructure Analysis

    SciTech Connect (OSTI)

    Melendez, M.; Milbrandt, A.

    2005-05-01

    Presentation for the 2005 U.S. Department of Energy Hydrogen Program review analyzes the hydrogen infrastructure needed to accommodate a transitional hydrogen fuel cell vehicle demand.

  18. Electrolysis - Hydrogen - Energy Innovation Portal

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

    Vehicles and Fuels Vehicles and Fuels Find More Like This Return to Search Electrolysis - Hydrogen Idaho National Laboratory Contact INL About This Technology Technology Marketing Summary INL has invented a process that leverages nuclear technology in combination with various carbon sources to produce synthetic gases for refinement into synthetic transportation fuels/chemicals. Using solid-state electrolysis, water is decomposed to hydrogen and oxygen in one process, while carbon dioxide is

  19. Technical Analysis of Hydrogen Production

    SciTech Connect (OSTI)

    Ali T-Raissi

    2005-01-14

    The aim of this work was to assess issues of cost, and performance associated with the production and storage of hydrogen via following three feedstocks: sub-quality natural gas (SQNG), ammonia (NH{sub 3}), and water. Three technology areas were considered: (1) Hydrogen production utilizing SQNG resources, (2) Hydrogen storage in ammonia and amine-borane complexes for fuel cell applications, and (3) Hydrogen from solar thermochemical cycles for splitting water. This report summarizes our findings with the following objectives: Technoeconomic analysis of the feasibility of the technology areas 1-3; Evaluation of the hydrogen production cost by technology areas 1; and Feasibility of ammonia and/or amine-borane complexes (technology areas 2) as a means of hydrogen storage on-board fuel cell powered vehicles. For each technology area, we reviewed the open literature with respect to the following criteria: process efficiency, cost, safety, and ease of implementation and impact of the latest materials innovations, if any. We employed various process analysis platforms including FactSage chemical equilibrium software and Aspen Technologies AspenPlus and HYSYS chemical process simulation programs for determining the performance of the prospective hydrogen production processes.

  20. Fall 2011 Composite Data Products: National FCEV Learning Demonstration

    SciTech Connect (OSTI)

    Wipke, K.; Sprik, S.; Kurtz, J.; Ramsden, T.; Ainscough, C.; Saur, G.

    2011-11-01

    This technical presentation describes Fall 2011 composite data products: national FCEV learning demonstration.

  1. Industrial Assessment Centers Update, Fall 2015 | Department of Energy

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

    Industrial Assessment Centers Update, Fall 2015 Industrial Assessment Centers Update, Fall 2015 Read the Industrial Assessment Centers (IAC) Update, Fall 2015 PDF icon Industrial Assessment Centers Update, Fall 2015 More Documents & Publications Industrial Assessment Centers (IAC) Update -- July 2015 Industrial Assessment Centers Quarterly Update, Spring 2014 IAC Factsheet

  2. NREL: Hydrogen and Fuel Cells Research - Wind-to-Hydrogen Project

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

    Wind-to-Hydrogen Project Photo of person in hard hat working on equipment in a laboratory setting. NREL engineer inspects hydrogen-producing electrolyzer system at the National Wind Technology Center. Photo by Greg Martin, NREL Formed in partnership with Xcel Energy, NREL's wind-to-hydrogen (Wind2H2) demonstration project links wind turbines and photovoltaic (PV) arrays to electrolyzer stacks, which pass the generated electricity through water to split it into hydrogen and oxygen. The resulting

  3. Alane for Hydrogen Storage and Delivery

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

    Alane for Hydrogen Storage and Delivery June 2012 BROOKHAVEN NATIONAL LABORATORY Why Hydrogen? * Oil is a limited resource, generates green house gas and much of the worlds supply lies outside the U.S. * 1 lb of hydrogen has the same energy as 3 lbs of gasoline 2 H 2 O H 2 O ...only emission is water (H 2 O) Hydrogen is a clean fuel and produces no CO 2 Hydrogen---powered fuel cells can supply energy to power a nything f rom a utomobiles t o h omes t o computers. 3 BROOKHAVEN NATIONAL LABORATORY

  4. Cozy Up to Colder Weather: 5 Ways to Prepare Your Home for Fall and Winter

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

    (Part 1) | Department of Energy Cozy Up to Colder Weather: 5 Ways to Prepare Your Home for Fall and Winter (Part 1) Cozy Up to Colder Weather: 5 Ways to Prepare Your Home for Fall and Winter (Part 1) September 24, 2014 - 11:49am Addthis Cleaning your gutters will help prevent ice dams that can cause leaks and water damage. | Photo courtesy of ©iStockphoto.com/KatarzynaBialasiewicz Cleaning your gutters will help prevent ice dams that can cause leaks and water damage. | Photo courtesy of

  5. Solar Hydrogen Production

    SciTech Connect (OSTI)

    Koval, C.; Sutin, N.; Turner, J.

    1996-09-01

    This panel addressed different methods for the photoassisted dissociation of water into its component parts, hydrogen and oxygen. Systems considered include PV-electrolysis, photoelectrochemical cells, and transition-metal based microheterogeneous and homogeneous systems. While none of the systems for water splitting appear economically viable at the present time, the panel identified areas of basic research that could increase the overall efficiency and decrease the costs. Common to all the areas considered was the underlying belief that the water-to-hydrogen half reaction is reasonably well characterized, while the four-electron oxidation of water-to-oxygen is less well understood and represents a significant energy loss. For electrolysis, research in electrocatalysis to reduce overvoltage losses was identified as a key area for increased efficiency. Non-noble metal catalysts and less expensive components would reduce capital costs. While potentially offering higher efficiencies and lower costs, photoelectrochemical-based direct conversion systems undergo corrosion reactions and often have poor energetics for the water reaction. Research is needed to understand the factors that control the interfacial energetics and the photoinduced corrosion. Multi-photon devices were identified as promising systems for high efficiency conversion.

  6. Hydrogen Technology Validation

    Fuel Cell Technologies Publication and Product Library (EERE)

    This fact sheet provides a basic introduction to the DOE Hydrogen National Hydrogen Learning Demonstration for non-technical audiences.

  7. Hydrogen-Fueled Vehicle Safety Systems Animation (Text Version) |

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

    Department of Energy Hydrogen-Fueled Vehicle Safety Systems Animation (Text Version) Hydrogen-Fueled Vehicle Safety Systems Animation (Text Version) Hydrogen fueled vehicles have multiple safety systems that detect and prevent the accidental release of hydrogen. There are sensors that detect leaks, a computer that monitors fuel flow, and an excess flow shut-off valve. Hydrogen tanks also have a pressure release device, much like those on natural gas water heaters in our homes. If a leak is

  8. Hydrogen scavengers

    DOE Patents [OSTI]

    Carroll, David W. (Los Alamos, NM); Salazar, Kenneth V. (Espanola, NM); Trkula, Mitchell (Los Alamos, NM); Sandoval, Cynthia W. (Los Alamos, NM)

    2002-01-01

    There has been invented a codeposition process for fabricating hydrogen scavengers. First, a .pi.-bonded allylic organometallic complex is prepared by reacting an allylic transition metal halide with an organic ligand complexed with an alkali metal; and then, in a second step, a vapor of the .pi.-bonded allylic organometallic complex is combined with the vapor of an acetylenic compound, irradiated with UV light, and codeposited on a substrate.

  9. University of Colorado-Boulder Researches Solar-Thermochemical Hydrogen

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

    Production | Department of Energy Colorado-Boulder Researches Solar-Thermochemical Hydrogen Production University of Colorado-Boulder Researches Solar-Thermochemical Hydrogen Production July 26, 2013 - 12:00am Addthis EERE funds research at the University of Colorado-Boulder for a hydrogen production technology that uses solar energy to produce hydrogen from water. The thermochemical process being used has minimal water requirements, in contrast to conventional central power plants using

  10. Process for the thermochemical production of hydrogen

    DOE Patents [OSTI]

    Norman, John H. (La Jolla, CA); Russell, Jr., John L. (La Jolla, CA); Porter, II, John T. (Del Mar, CA); McCorkle, Kenneth H. (Del Mar, CA); Roemer, Thomas S. (Cardiff, CA); Sharp, Robert (Del Mar, CA)

    1978-01-01

    Hydrogen is thermochemically produced from water in a cycle wherein a first reaction produces hydrogen iodide and H.sub.2 SO.sub.4 by the reaction of iodine, sulfur dioxide and water under conditions which cause two distinct aqueous phases to be formed, i.e., a lighter sulfuric acid-bearing phase and a heavier hydrogen iodide-bearing phase. After separation of the two phases, the heavier phase containing most of the hydrogen iodide is treated, e.g., at a high temperature, to decompose the hydrogen iodide and recover hydrogen and iodine. The H.sub.2 SO.sub.4 is pyrolyzed to recover sulfur dioxide and produce oxygen.

  11. Summary of the Fall Meeting of the

    Gasoline and Diesel Fuel Update (EIA)

    Summary of the Fall Meeting of the American Statistical Association (ASA) Committee on Energy Statistics October 24-25, 2002 .................with the Energy Information Administration 1. Update on the Commercial Buildings Energy Consumption Survey (CBECS), by Dwight French, Office of Energy Markets and End Use, EIA At the Spring, 2002 Committee meeting Dwight French gave a presentation on three major methodological issues being studied in the post-2000 redesign of EIA's Commercial Buildings

  12. Better Plants Program Progress Update: Fall 2013

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

    Update FALL 2013 Learn more at eere.energy.gov/manufacturing/tech_assistance/betterplants/ The Better Buildings, Better Plants Program is a national partnership initiative that challenges industry to set and meet ambitious energy-saving targets. Across the United States, manufacturers spend more than $200 billion each year to power their plants. 1 The industrial sector has the potential to invest more than $100 billion in cost-effective, energy-efficiency technologies by 2020, which would result

  13. Hydrogen Sensor Testing, Hydrogen Technologies (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2008-11-01

    Factsheet describing the hydrogen sensor testing laboratory at the National Renewable Energy Laboratory.

  14. City of Klamath Falls, Oregon Geothermal Power Plant Feasibility Study

    SciTech Connect (OSTI)

    Brian Brown, PE; Stephen Anderson, PE, Bety Riley

    2011-07-31

    The purpose of the Klamath Falls project is to demonstrate the effectiveness of a combined thermal distribution system and power generation facility. The city of Klamath Falls operates a geothermal district heating system which would appear to be an attractive opportunity to install a power generation system. Since the two wells have operated reliably and consistently over many years, no new sources or resource exploration would be necessary. It appears that it will cost more to construct, operate, maintain and amortize a proposed geothermal facility than the long?term value of the power it would produce. The success of a future project will be determined by whether utility power production costs will remain low and whether costs of construction, operations, or financing may be reduced. There are areas that it would be possible to reduce construction cost. More detailed design could enable the city to obtain more precise quotes for components and construction, resulting in reduction in contingency projections. The current level of the contingency for uncertainty of costs is between $200,000 and $300,000. Another key issue with this project appears to be operation cost. While it is expected that only minimal routine monitoring and operating expenses will occur, the cost of water supply and waste water disposal represents nearly one quarter of the value of the power. If the cost of water alone could be reduced, the project could become viable. In addition, the projected cost of insurance may be lower than estimated under a city?wide policy. No provisions have been made for utilization of federal tax incentives. If a transaction with a third-party owner/taxpayer were to be negotiated, perhaps the net cost of ownership could be reduced. It is recommended that these options be investigated to determine if the costs and benefits could be brought together. The project has good potential, but like many alternative energy projects today, they only work economically if the federal tax incentives come into play.

  15. Current (2009) State-of-the-Art Hydrogen Production Cost Estimate Using

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

    Water Electrolysis | Department of Energy Current (2009) State-of-the-Art Hydrogen Production Cost Estimate Using Water Electrolysis Current (2009) State-of-the-Art Hydrogen Production Cost Estimate Using Water Electrolysis This is an independent review of the estimated 2009 state-of-the-art cost of producing hydrogen from both alkaline and PEM water electrolyzers for distributed and central production. PDF icon Current (2009) State-of-the-Art Hydrogen Production Cost Estimate Using Water

  16. Method for absorbing hydrogen using an oxidation resisant organic hydrogen getter

    DOE Patents [OSTI]

    Shepodd, Timothy J. (Livermore, CA); Buffleben, George M. (Tracy, CA)

    2009-02-03

    A composition for removing hydrogen from an atmosphere, comprising a mixture of a polyphenyl ether and a hydrogenation catalyst, preferably a precious metal catalyst, and most preferably platinum, is disclosed. This composition is stable in the presence of oxygen, will not polymerize or degrade upon exposure to temperatures in excess of 200.degree. C., or prolonged exposure to temperatures in the range of 100-300.degree. C. Moreover, these novel hydrogen getter materials can be used to efficiently remove hydrogen from mixtures of hydrogen/inert gas (e.g., He, Ar, N.sub.2), hydrogen/ammonia atmospheres, such as may be encountered in heat exchangers, and hydrogen/carbon dioxide atmospheres. Water vapor and common atmospheric gases have no adverse effect on the ability of these getter materials to absorb hydrogen.

  17. Chemical Hydrogen Storage Materials

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

    Troy A. Semelsberger Los Alamos National Laboratory Hydrogen Storage Summit Jan 27-29, 2015 Denver, CO Chemical Hydrogen Storage Materials 2 Objectives 1. Assess chemical hydrogen storage materials that can exceed 700 bar compressed hydrogen tanks 2. Status (state-of-the-art) of chemical hydrogen storage materials 3. Identify key material characteristics 4. Identify obstacles, challenges and risks for the successful deployment of chemical hydrogen materials in a practical on-board hydrogen

  18. Hydrogen detector

    DOE Patents [OSTI]

    Kanegae, Naomichi (Mito, JP); Ikemoto, Ichiro (Mito, JP)

    1980-01-01

    A hydrogen detector of the type in which the interior of the detector is partitioned by a metal membrane into a fluid section and a vacuum section. Two units of the metal membrane are provided and vacuum pipes are provided independently in connection to the respective units of the metal membrane. One of the vacuum pipes is connected to a vacuum gauge for static equilibrium operation while the other vacuum pipe is connected to an ion pump or a set of an ion pump and a vacuum gauge both designed for dynamic equilibrium operation.

  19. Highly robust hydrogen generation by bio-inspired Ir complexes for dehydrogenation of formic acid in water: Experimental and theoretical mechanistic investigations at different pH

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

    Wang, Wan -Hui; Fujita, Etsuko; Ertem, Mehmed Z.; Xu, Shaoan; Onishi, Naoya; Manaka, Yuichi; Suna, Yuki; Kambayashi, Hide; Muckerman, James T.; Himeda, Yuichiro

    2015-07-30

    Hydrogen generation from formic acid (FA), one of the most promising hydrogen storage materials, has attracted much attention due to the demand for the development of renewable energy carriers. Catalytic dehydrogenation of FA in an efficient and green manner remains challenging. Here, we report a series of bio-inspired Ir complexes for highly robust and selective hydrogen production from FA in aqueous solutions without organic solvents or additives. One of these complexes bearing an imidazoline moiety (complex 6) achieved a turnover frequency (TOF) of 322,000 h⁻¹ at 100 °C, which is higher than ever reported. The novel catalysts are very stablemore » and applicable in highly concentrated FA. For instance, complex 3 (1 μmol) affords an unprecedented turnover number (TON) of 2,050,000 at 60 °C. Deuterium kinetic isotope effect experiments and density functional theory (DFT) calculations employing a “speciation” approach demonstrated a change in the rate-determining step with increasing solution pH. This study provides not only more insight into the mechanism of dehydrogenation of FA but also offers a new principle for the design of effective homogeneous organometallic catalysts for H₂ generation from FA.« less

  20. Highly robust hydrogen generation by bio-inspired Ir complexes for dehydrogenation of formic acid in water: Experimental and theoretical mechanistic investigations at different pH

    SciTech Connect (OSTI)

    Wang, Wan -Hui; Fujita, Etsuko; Ertem, Mehmed Z.; Xu, Shaoan; Onishi, Naoya; Manaka, Yuichi; Suna, Yuki; Kambayashi, Hide; Muckerman, James T.; Himeda, Yuichiro

    2015-07-30

    Hydrogen generation from formic acid (FA), one of the most promising hydrogen storage materials, has attracted much attention due to the demand for the development of renewable energy carriers. Catalytic dehydrogenation of FA in an efficient and green manner remains challenging. Here, we report a series of bio-inspired Ir complexes for highly robust and selective hydrogen production from FA in aqueous solutions without organic solvents or additives. One of these complexes bearing an imidazoline moiety (complex 6) achieved a turnover frequency (TOF) of 322,000 h? at 100 C, which is higher than ever reported. The novel catalysts are very stable and applicable in highly concentrated FA. For instance, complex 3 (1 ?mol) affords an unprecedented turnover number (TON) of 2,050,000 at 60 C. Deuterium kinetic isotope effect experiments and density functional theory (DFT) calculations employing a speciation approach demonstrated a change in the rate-determining step with increasing solution pH. This study provides not only more insight into the mechanism of dehydrogenation of FA but also offers a new principle for the design of effective homogeneous organometallic catalysts for H? generation from FA.

  1. Hydrogen bond dynamics in bulk alcohols

    SciTech Connect (OSTI)

    Shinokita, Keisuke; Cunha, Ana V.; Jansen, Thomas L. C.; Pshenichnikov, Maxim S.

    2015-06-07

    Hydrogen-bonded liquids play a significant role in numerous chemical and biological phenomena. In the past decade, impressive developments in multidimensional vibrational spectroscopy and combined molecular dynamicsquantum mechanical simulation have established many intriguing features of hydrogen bond dynamics in one of the fundamental solvents in nature, water. The next class of a hydrogen-bonded liquidalcoholshas attracted much less attention. This is surprising given such important differences between water and alcohols as the imbalance between the number of hydrogen bonds, each molecule can accept (two) and donate (one) and the very presence of the hydrophobic group in alcohols. Here, we use polarization-resolved pump-probe and 2D infrared spectroscopy supported by extensive theoretical modeling to investigate hydrogen bond dynamics in methanol, ethanol, and isopropanol employing the OH stretching mode as a reporter. The sub-ps dynamics in alcohols are similar to those in water as they are determined by similar librational and hydrogen-bond stretch motions. However, lower density of hydrogen bond acceptors and donors in alcohols leads to the appearance of slow diffusion-controlled hydrogen bond exchange dynamics, which are essentially absent in water. We anticipate that the findings herein would have a potential impact on fundamental chemistry and biology as many processes in nature involve the interplay of hydrophobic and hydrophilic groups.

  2. Bioinspired design of redox-active ligands for multielectron catalysis: Effects of positioning pyrazine reservoirs on cobalt for electro- and photocatalytic generation of hydrogen from water

    SciTech Connect (OSTI)

    Jurss, Jonah W.; Khnayzer, Rony S.; Panetier, Julien A.; El Roz, Karim A.; Nichols, Eva M.; Head-Gordon, Martin; Long, Jeffrey R.; Castellano, Felix N.; Chang, Christopher J.

    2015-06-09

    Mononuclear metalloenzymes in nature can function in cooperation with precisely positioned redox-active organic cofactors in order to carry out multielectron catalysis. Inspired by the finely tuned redox management of these bioinorganic systems, we present the design, synthesis, and experimental and theoretical characterization of a homologous series of cobalt complexes bearing redox-active pyrazines. These donor moieties are locked into key positions within a pentadentate ligand scaffold in order to evaluate the effects of positioning redox non-innocent ligands on hydrogen evolution catalysis. Both metal- and ligand-centered redox features are observed in organic as well as aqueous solutions over a range of pH values, and comparison with analogs bearing redox-inactive zinc(II) allows for assignments of ligand-based redox events. Varying the geometric placement of redox non-innocent pyrazine donors on isostructural pentadentate ligand platforms results in marked effects on observed cobalt-catalyzed proton reduction activity. Electrocatalytic hydrogen evolution from weak acids in acetonitrile solution, under diffusion-limited conditions, reveals that the pyrazine donor of axial isomer 1-Co behaves as an unproductive electron sink, resulting in high overpotentials for proton reduction, whereas the equatorial pyrazine isomer complex 2-Co is significantly more active for hydrogen generation at lower voltages. Addition of a second equatorial pyrazine in complex 3-Co further minimizes overpotentials required for catalysis. The equatorial derivative 2-Co is also superior to its axial 1-Co congener for electrocatalytic and visible-light photocatalytic hydrogen generation in biologically relevant, neutral pH aqueous media. Density functional theory calculations (B3LYP-D2) indicate that the first reduction of catalyst isomers 1-Co, 2-Co, and 3-Co is largely metal-centered while the second reduction occurs at pyrazine. Taken together, the data establish that proper positioning of non-innocent pyrazine ligands on a single cobalt center is indeed critical for promoting efficient hydrogen catalysis in aqueous media, akin to optimally positioned redox-active cofactors in metalloenzymes. In a broader sense, these findings highlight the significance of electronic structure considerations in the design of effective electronhole reservoirs for multielectron transformations.

  3. Bioinspired design of redox-active ligands for multielectron catalysis: Effects of positioning pyrazine reservoirs on cobalt for electro- and photocatalytic generation of hydrogen from water

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

    Jurss, Jonah W.; Khnayzer, Rony S.; Panetier, Julien A.; El Roz, Karim A.; Nichols, Eva M.; Head-Gordon, Martin; Long, Jeffrey R.; Castellano, Felix N.; Chang, Christopher J.

    2015-06-09

    Mononuclear metalloenzymes in nature can function in cooperation with precisely positioned redox-active organic cofactors in order to carry out multielectron catalysis. Inspired by the finely tuned redox management of these bioinorganic systems, we present the design, synthesis, and experimental and theoretical characterization of a homologous series of cobalt complexes bearing redox-active pyrazines. These donor moieties are locked into key positions within a pentadentate ligand scaffold in order to evaluate the effects of positioning redox non-innocent ligands on hydrogen evolution catalysis. Both metal- and ligand-centered redox features are observed in organic as well as aqueous solutions over a range of pHmore » values, and comparison with analogs bearing redox-inactive zinc(II) allows for assignments of ligand-based redox events. Varying the geometric placement of redox non-innocent pyrazine donors on isostructural pentadentate ligand platforms results in marked effects on observed cobalt-catalyzed proton reduction activity. Electrocatalytic hydrogen evolution from weak acids in acetonitrile solution, under diffusion-limited conditions, reveals that the pyrazine donor of axial isomer 1-Co behaves as an unproductive electron sink, resulting in high overpotentials for proton reduction, whereas the equatorial pyrazine isomer complex 2-Co is significantly more active for hydrogen generation at lower voltages. Addition of a second equatorial pyrazine in complex 3-Co further minimizes overpotentials required for catalysis. The equatorial derivative 2-Co is also superior to its axial 1-Co congener for electrocatalytic and visible-light photocatalytic hydrogen generation in biologically relevant, neutral pH aqueous media. Density functional theory calculations (B3LYP-D2) indicate that the first reduction of catalyst isomers 1-Co, 2-Co, and 3-Co is largely metal-centered while the second reduction occurs at pyrazine. Taken together, the data establish that proper positioning of non-innocent pyrazine ligands on a single cobalt center is indeed critical for promoting efficient hydrogen catalysis in aqueous media, akin to optimally positioned redox-active cofactors in metalloenzymes. In a broader sense, these findings highlight the significance of electronic structure considerations in the design of effective electron–hole reservoirs for multielectron transformations.« less

  4. Butte Falls, Oregon: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    This article is a stub. You can help OpenEI by expanding it. Butte Falls is a town in Jackson County, Oregon. It falls under Oregon's 2nd congressional district.12 References...

  5. Lyons Falls, New York: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    This article is a stub. You can help OpenEI by expanding it. Lyons Falls is a village in Lewis County, New York. It falls under New York's 23rd congressional district.12...

  6. NREL Wind to Hydrogen Project: Renewable Hydrogen Production...

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

    Wind to Hydrogen Project: Renewable Hydrogen Production for Energy Storage & Transportation NREL Wind to Hydrogen Project: Renewable Hydrogen Production for Energy Storage & ...

  7. Hydrogen Permeability and Integrity of Hydrogen Delivery Pipelines...

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

    Hydrogen Permeability and Integrity of Hydrogen Delivery Pipelines Project Objectives: To gain basic understanding of hydrogen permeation behavior and its impact on hydrogen ...

  8. DOE Hydrogen and Fuel Cells Program Record 11007: Hydrogen Threshold...

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

    and Fuel Cells Program Record 11007: Hydrogen Threshold Cost Calculation DOE Hydrogen and Fuel Cells Program Record 11007: Hydrogen Threshold Cost Calculation The hydrogen ...

  9. Safety and Regulatory Structure for CNG, CNG-Hydrogen, Hydrogen...

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

    Hydrogen, Hydrogen Vehicles and Fuels in China Safety and Regulatory Structure for CNG, CNG-Hydrogen, Hydrogen Vehicles and Fuels in China Presentation given by Jinyang Zheng of ...

  10. CNG, Hydrogen, CNG-Hydrogen Blends - Critical Fuel Properties...

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

    CNG, Hydrogen, CNG-Hydrogen Blends - Critical Fuel Properties and Behavior CNG, Hydrogen, CNG-Hydrogen Blends - Critical Fuel Properties and Behavior Presentation given by Jay ...

  11. Ovonic Hydrogen Systems LLC formerly Texaco Ovonic Hydrogen Systems...

    Open Energy Info (EERE)

    Hydrogen Systems LLC formerly Texaco Ovonic Hydrogen Systems LLC Jump to: navigation, search Name: Ovonic Hydrogen Systems LLC (formerly Texaco Ovonic Hydrogen Systems LLC) Place:...

  12. Office of Indian Energy Newsletter: Summer/Fall 2013

    Broader source: Energy.gov [DOE]

    Indian Energy Beat: News on Actions to Accelerate Energy Development in Indian Country Summer/Fall 2013 Issue

  13. DOE - Office of Legacy Management -- Niagara Falls Vicinity Properties NY -

    Office of Legacy Management (LM)

    NY 17 Niagara Falls Vicinity Properties NY - NY 17 FUSRAP Considered Sites Niagara Falls Vicinity Properties, NY Alternate Name(s): Lake Ontario Ordnance Works (LOOW) Niagara Falls Storage Site (NFSS) DOE-Niagara Falls Storage Site NY.17-1 NY.17-3 Location: Lewiston , New York NY.17-5 Historical Operations: Stored, shipped, and buried radioactive equipment and waste for MED and AEC containing uranium, radium, and thorium. Portions of the former site are privately owned, creating a

  14. Niagara Falls Storage Site environmental monitoring report. Calendar year 1983

    SciTech Connect (OSTI)

    Not Available

    1984-07-01

    During 1983, an environmental monitoring program was continued at the Niagara Falls Storage Site, a United States Department of Energy (DOE) surplus facility located in Niagara County, New York presently used for the storage of radioactive residues, contaminated soils and rubble. The monitoring program at NFSS measures radon concentrations in air, uranium and radium concentrations in surface water, groundwater, and sediments, and external gamma exposure rates. Radiation doses to the public are also calculated. Environmental samples collected are analyzed to determine compliance with applicable standards. Comparison of 1983 monitoring results with 1982 results shows a significant decrease in radon levels at almost every monitoring location. External gamma exposure rates also showed a general decrease. 9 references, 10 figures, 11 tables

  15. Process for forming hydrogen and other fuels utilizing magma

    DOE Patents [OSTI]

    Galt, John K. (Albuquerque, NM); Gerlach, Terrence M. (Albuquerque, NM); Modreski, Peter J. (Albuquerque, NM); Northrup, Jr., Clyde J. M. (Albuquerque, NM)

    1978-01-01

    The disclosure relates to a method for extracting hydrogen from magma and water by injecting water from above the earth's surface into a pocket of magma and extracting hydrogen produced by the water-magma reaction from the vicinity of the magma.

  16. Wind Electrolysis: Hydrogen Cost Optimization

    SciTech Connect (OSTI)

    Saur, G.; Ramsden, T.

    2011-05-01

    This report describes a hydrogen production cost analysis of a collection of optimized central wind based water electrolysis production facilities. The basic modeled wind electrolysis facility includes a number of low temperature electrolyzers and a co-located wind farm encompassing a number of 3MW wind turbines that provide electricity for the electrolyzer units.

  17. Mechanochemical hydrogenation of coal

    DOE Patents [OSTI]

    Yang, Ralph T. (Tonawanda, NY); Smol, Robert (East Patchogue, NY); Farber, Gerald (Elmont, NY); Naphtali, Leonard M. (Washington, DC)

    1981-01-01

    Hydrogenation of coal is improved through the use of a mechanical force to reduce the size of the particulate coal simultaneously with the introduction of gaseous hydrogen, or other hydrogen donor composition. Such hydrogen in the presence of elemental tin during this one-step size reduction-hydrogenation further improves the yield of the liquid hydrocarbon product.

  18. Bioenergy Deployment Consortium (BDC) 2014 Fall Symposium

    Broader source: Energy.gov [DOE]

    The 2014 BDC Fall Symposium will be held on October 21–22, 2014 in Fort Myers, Florida. The event will include a tour of the Algenol facility on Wednesday morning. The symposium will have panels for progress reports from current cellulosic bio-product companies, updates on government policy from several agencies, scale-up strategies,and lessons learned. POET-DSM will provide the after dinner success story. Neil Rossmeissl, Program Manager, Algal Program, Bioenergy Technologies Office, will be delivering the keynote address on expanding the bioeconomy.

  19. ARM - Field Campaign - Fall 1997 Shortwave IOP

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

    Shortwave IOP ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Campaign : Fall 1997 Shortwave IOP 1997.09.15 - 1997.10.05 Lead Scientist : Graeme Stephens For data sets, see below. Summary The Shortwave Radiation IOP, the first in a series of three such IOPs, was devoted to exploring the measurement of broadband and spectral radiation with an array of ground-based ARM and guest instrumentation, including the RCF

  20. 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

  1. 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

  2. The Better Buildings Neighborhood View -- Fall 2011 | Department of Energy

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

    Fall 2011 The Better Buildings Neighborhood View -- Fall 2011 Better Buildings Neighborhood View, from the Better Buildings Neighborhood Program of the U.S. Department of Energy. PDF icon BB Neighborhood View -- Fall 2011 More Documents & Publications The Better Buildings Neighborhood View -- July 2013 The Better Buildings Neighborhood View - October 2012 The Better Buildings Neighborhood View -- December 2013

  3. Lessons Learned: Peer Exchange Calls Fall 2014 | Department of Energy

    Office of Environmental Management (EM)

    Fall 2014 Lessons Learned: Peer Exchange Calls Fall 2014 Better Buildings Residential Network, Lessons Learned: Peer Exchange Calls Fall 2014. PDF icon Lessons Learned: Peer Exchange Calls More Documents & Publications Better Buildings Residential Network: Lessons Learned: Peer Exchange Calls Lessons Learned: Peer Exchange Calls -- No. 3 Better Buildings Network View | October 2014

  4. CTP Hydrogen | Open Energy Information

    Open Energy Info (EERE)

    CTP Hydrogen Jump to: navigation, search Name: CTP Hydrogen Place: Westborough, Massachusetts Zip: 1581 Sector: Hydro, Hydrogen Product: CTP Hydrogen is an early stage company...

  5. Renewable Hydrogen Potential from Biogas in the United States

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

    ... The estimates do not include electricity, water, or other materials that may also be required in the biogas, biomethane, and hydrogen production processes. The geographic ...

  6. American Geophysical Union (AGU) Fall Meeting | Department of Energy

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

    American Geophysical Union (AGU) Fall Meeting American Geophysical Union (AGU) Fall Meeting December 14, 2015 8:00AM EST to December 18, 2015 6:00PM EST With nearly 24,000 attendees, AGU Fall Meeting is the largest Earth and space science meeting in the world. Now in its 48th year, AGU Fall Meeting is the best place to present your research; hear about the latest discoveries, trends, and challenges in the field; and network and make connections that can enhance your career. AGU Fall Meeting

  7. Fall and Winter Energy-Saving Tips | Department of Energy

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

    Fall and Winter Energy-Saving Tips Fall and Winter Energy-Saving Tips Simple and inexpensive actions can help you save energy and money during the cool fall and winter months. | Photo courtesy of ©iStockphoto.com. Simple and inexpensive actions can help you save energy and money during the cool fall and winter months. | Photo courtesy of ©iStockphoto.com. This article will help you find strategies to help you save energy during the cool fall and cold winter months. Some of the tips below are

  8. Robust Polymer Composite Membranes for Hydrogen Separation | Department of

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

    Energy Robust Polymer Composite Membranes for Hydrogen Separation Robust Polymer Composite Membranes for Hydrogen Separation PDF icon polymer_composite_membranes.pdf More Documents & Publications Process Intensification with Integrated Water-Gas-Shift Membrane Reactor U.S. DOE Webinar Series - 2011-2012 Hydrogen Student Design Contest Process Development and Scale-up of Advanced Cathode Materials

  9. Why Hydrogen? Hydrogen from Diverse Domestic Resources

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

    from Diverse Domestic Resources Hydrogen from Diverse Domestic Resources Distributed Generation Transportation HIGH EFFICIENCY HIGH EFFICIENCY & RELIABILITY & RELIABILITY ZERONEAR...

  10. Hydrogen Sensor Workshop

    Broader source: Energy.gov [DOE]

    On June 8, 2011, the Department of Energy's National Renewable Energy Laboratory hosted a hydrogen sensors workshop to survey emerging fuel cell and hydrogen infrastructure applications that...

  11. Hydrogen Threshold Cost Calculation

    Broader source: Energy.gov [DOE]

    DOE Hydrogen Program Record number11007, Hydrogen Threshold Cost Calculation, documents the methodology and assumptions used to calculate that threshold cost.

  12. Hydrogen Storage Challenges

    Broader source: Energy.gov [DOE]

    For transportation, the overarching technical challenge for hydrogen storage is how to store the amount of hydrogen required for a conventional driving range (>300 miles) within the vehicular...

  13. Hydrogen | Open Energy Information

    Open Energy Info (EERE)

    Hydrogen Jump to: navigation, search Hydrogen Companies Loading map... "format":"googlemaps3","type":"SATELLITE","types":"ROADMAP","SATELLITE","HYBRID","TERRAIN","limit":1000,"o...

  14. Hydrogen Delivery Roadmap

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

    ... Pathway," International Journal of Hydrogen Energy, 34 ... Chemical Economics Handbook. July 2010, http:chemical.ihs.comCEHPublicReports743.5000. 25 Hydrogen ...

  15. Hydrogen Safety Panel

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

    or otherwise restricted information. Project ID: scs07weiner PNNL-SA-65397 2 IEA HIA Task 19 Working Group Hydrogen Safety Training Props Hydrogen Safety Panel Incident...

  16. Production of hydrogen, liquid fuels, and chemicals from catalytic processing of bio-oils

    SciTech Connect (OSTI)

    Huber, George W; Vispute, Tushar P; Routray, Kamalakanta

    2014-06-03

    Disclosed herein is a method of generating hydrogen from a bio-oil, comprising hydrogenating a water-soluble fraction of the bio-oil with hydrogen in the presence of a hydrogenation catalyst, and reforming the water-soluble fraction by aqueous-phase reforming in the presence of a reforming catalyst, wherein hydrogen is generated by the reforming, and the amount of hydrogen generated is greater than that consumed by the hydrogenating. The method can further comprise hydrocracking or hydrotreating a lignin fraction of the bio-oil with hydrogen in the presence of a hydrocracking catalyst wherein the lignin fraction of bio-oil is obtained as a water-insoluble fraction from aqueous extraction of bio-oil. The hydrogen used in the hydrogenating and in the hydrocracking or hydrotreating can be generated by reforming the water-soluble fraction of bio-oil.

  17. Method for low temperature catalytic production of hydrogen

    DOE Patents [OSTI]

    Mahajan, Devinder

    2003-07-22

    The invention provides a process for the catalytic production of a hydrogen feed by exposing a hydrogen feed to a catalyst which promotes a base-catalyzed water-gas-shift reaction in a liquid phase. The hydrogen feed can be provided by any process known in the art of making hydrogen gas. It is preferably provided by a process that can produce a hydrogen feed for use in proton exchange membrane fuel cells. The step of exposing the hydrogen feed takes place preferably from about 80.degree. C. to about 150.degree. C.

  18. Hydrogen and Fuel Cell Technology Basics | Department of Energy

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

    Photo of a woman scientist using a machine that is purifying biological catalysts for hydrogen production. Hydrogen is the simplest element on Earth. A hydrogen atom consists of only one proton and one electron. It is also the most plentiful element in the universe. Despite its simplicity and abundance, hydrogen doesn't occur naturally as a gas on Earth. It is always combined with other elements. Water, for example, is a combination of hydrogen and oxygen. Hydrogen is also found in many organic

  19. NREL: Hydrogen and Fuel Cells Research - NREL Hydrogen Expert Sees Promise

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

    in New Discovery NREL Hydrogen Expert Sees Promise in New Discovery Photoelectrochemical pioneer John Turner says nickel film cracks the door for tandem artificial photosynthesis, greater efficiency January 8, 2014 Producing hydrogen directly from the sun -- and in a way that is commercially viable -- is more a reality, less a pipedream, thanks in part to a new discovery, renowned hydrogen water-splitting expert John Turner stated in a commentary in the journal Science. Turner, a research

  20. Temporary Restoration of Bull Trout Passage at Albeni Falls Dam

    SciTech Connect (OSTI)

    Paluch, Mark; Scholz, Allan; McLellan, Holly; Olson, Jason

    2009-07-13

    This study was designed to monitor movements of bull trout that were provided passage above Albeni Falls Dam, Pend Oreille River. Electrofishing and angling were used to collect bull trout below the dam. Tissue samples were collected from each bull trout and sent to the U. S. Fish and Wildlife Service Abernathy Fish Technology Center Conservation Genetics Lab, Washington. The DNA extracted from tissue samples were compared to a catalog of bull trout population DNA from the Priest River drainage, Lake Pend Oreille tributaries, and the Clark Fork drainage to determine the most probable tributary of origin. A combined acoustic radio or radio tag was implanted in each fish prior to being transported and released above the dam. Bull trout relocated above the dam were able to volitionally migrate into their natal tributary, drop back downstream, or migrate upstream to the next dam. A combination of stationary radio receiving stations and tracking via aircraft, boat, and vehicle were used to monitor the movement of tagged fish to determine if the spawning tributary it selected matched the tributary assigned from the genetic analysis. Seven bull trout were captured during electrofishing surveys in 2008. Of these seven, four were tagged and relocated above the dam. Two were tagged and left below the dam as part of a study monitoring movements below the dam. One was immature and too small at the time of capture to implant a tracking tag. All four fish released above the dam passed by stationary receivers stations leading into Lake Pend Oreille and no fish dropped back below the dam. One of the radio tags was recovered in the tributary corresponding with the results of the genetic test. Another fish was located in the vicinity of its assigned tributary, which was impassable due to low water discharge at its mouth. Two fish have not been located since entering the lake. Of these fish, one was immature and not expected to enter its natal tributary in the fall of 2008. The other fish was large enough to be mature, but at the time of capture its sex was unable to be determined, indicating it may not have been mature at the time of capture. These fish are expected to enter their natal tributaries in early summer or fall of 2009.

  1. Panel 3, Necessary Conditions for Hydrogen Energy Storage Projects to Succeed in North America

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

    Necessary Conditions for Hydrogen Energy Storage Projects to Succeed in North America Rob Harvey Director, Energy Storage Hydrogen Energy Storage for Grid and Transportation Services DOE and Industry Canada, Sacramento, May 14-15, 2014 Hydrogenics is a world leader in water electrolysis products and hydrogen fuel cell power systems 2 Onsite Generation Electrolyzers Industrial Hydrogen Hydrogen Fueling Power Systems Fuel Cell Modules Stand-by Power Mobility Power Energy Storage Power-to-Gas 

  2. Summary of Electrolytic Hydrogen Production: Milestone Completion Report |

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

    Department of Energy Electrolytic Hydrogen Production: Milestone Completion Report Summary of Electrolytic Hydrogen Production: Milestone Completion Report This report provides an overview of the current state of electrolytic hydrogen production techonologies and an economic analysis of the processes and systems available as of December 2003. PDF icon 36734.pdf More Documents & Publications Current (2009) State-of-the-Art Hydrogen Production Cost Estimate Using Water Electrolysis

  3. New runners to boost peak output at Niagara Falls

    SciTech Connect (OSTI)

    Reason, J.

    1990-01-01

    Retrofitted Francis turbines will improve the value of power generated from Niagara Falls by increasing the peak output of the hydroturbine units at the Robert Moses hydroelectric plant. The computer-designed runners are expected to add 330 MW to the peak capacity of the 28-yr-old plant and significantly increase the efficiency at high flow rates. Next year, the first new runner will be retrofit to the highly instrumented Unit 4. If the retrofit unit meets it increased-performance expectations, the other 12 units will be upgraded between 1993 and 1998. The work is part of an overall expansion of the Niagara Power Project designed to made better use of the power value of Niagara river water, within the constraints of a treaty with Canada and the scenic value of the falls. These constraints, together with varying flows and heads, introduced enormous complexities into the selection and design of the new runners. The alterations being made to Unit 4, in addition to replacing the turbine runner, include modifying the draft tube-liners, increasing the wicket-gate stroke, replacing the turbine discharge ring (to accommodate longer blades), making various electrical modifications to the generator, and replacing the transformer. But the key to the retrofit is the computer-designed runner. Charles Grose, senior project manager, New York Power Authority, White Plains, NY, emphasizes that such computer design techniques were not available a few years ago; neither were the computer-controlled machining techniques necessary to manufacture the new runners. Other aspects of the upgrading that were analyzed include runner stability, resonance, shaft torsional stress, and runaway speed.

  4. Water Outlet Control Mechanism for Fuel Cell System Operation...

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

    Industrial Technologies Industrial Technologies Hydrogen and Fuel Cell Hydrogen and Fuel Cell Find More Like This Return to Search Water Outlet Control Mechanism for Fuel Cell...

  5. Photoelectrochemical Water Systems for H2 Production (Presentation)

    SciTech Connect (OSTI)

    Turner, J. A.; Deutsch, T.; Head, J.; Vallett, P.

    2007-05-17

    This Photoelectrochemical Water Systems for Hydrogen Production presentation by the National Renewable Energy Laboratory's John Turner was given at the DOE Hydrogen Program's 2007 Annual Merit Review.

  6. Polymer formulations for gettering hydrogen

    DOE Patents [OSTI]

    Shepodd, Timothy J. (330 Thrasher Ave., Livermore, CA 94550); Even, Jr., William R. (4254 Drake Way, Livermore, CA 94550)

    2000-01-01

    A novel method for preparing a hydrogenation composition comprising organic polymer molecules having carbon--carbon double bonds, for removing hydrogen from the atmosphere within enclosed spaces and particularly from atmospheres within enclosed spaces that contain air, water vapor, oxygen, carbon dioxide or ammonia. The organic polymers molecules containing carbon--carbon double bonds throughout their structures, preferably polybutadiene, polyisoprene and derivatives thereof, intimately mixed with an insoluble noble metal catalyst composition. High molecular weight polymers may be added to the organic polymer/catalyst mixture in order to improve their high temperature performance. The hydrogenation composition is prepared by dispersing the polymers in a suitable solvent, forming thereby a solution suspension, flash-freezing droplets of the solution in a liquid cryogen, freeze-drying the frozen droplets to remove frozen solvent incorporated in the droplets, and recovering the dried powder thus formed.

  7. Hydrogen Storage and Production Project

    SciTech Connect (OSTI)

    Bhattacharyya, Abhijit; Biris, A. S.; Mazumder, M. K.; Karabacak, T.; Kannarpady, Ganesh; Sharma, R.

    2011-07-31

    This is the final technical report. This report is a summary of the project. The goal of our project is to improve solar-to-hydrogen generation efficiency of the PhotoElectroChemical (PEC) conversion process by developing photoanodes with high absorption efficiency in the visible region of the solar radiation spectrum and to increase photo-corrosion resistance of the electrode for generating hydrogen from water. To meet this goal, we synthesized nanostructured heterogeneous semiconducting photoanodes with a higher light absorption efficiency compared to that of TiO2 and used a corrosion protective layer of TiO2. While the advantages of photoelectrochemical (PEC) production of hydrogen have not yet been realized, the recent developments show emergence of new nanostructural designs of photoanodes and choices of materials with significant gains in photoconversion efficiency.

  8. Hydrogen Publications

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

    Publications - Sandia Energy Energy Search Icon Sandia Home Locations Contact Us Employee Locator Energy & Climate Secure & Sustainable Energy Future Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 Geothermal Natural Gas Safety, Security & Resilience of the Energy Infrastructure Energy Storage Nuclear Power & Engineering Grid Modernization Battery Testing Nuclear Fuel Cycle Defense Waste Management Programs Advanced Nuclear

  9. Hydrogen Behavior

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

    Behavior - Sandia Energy Energy Search Icon Sandia Home Locations Contact Us Employee Locator Energy & Climate Secure & Sustainable Energy Future Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 Geothermal Natural Gas Safety, Security & Resilience of the Energy Infrastructure Energy Storage Nuclear Power & Engineering Grid Modernization Battery Testing Nuclear Fuel Cycle Defense Waste Management Programs Advanced Nuclear Energy

  10. Hydrogen Infrastructure

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

    Infrastructure - Sandia Energy Energy Search Icon Sandia Home Locations Contact Us Employee Locator Energy & Climate Secure & Sustainable Energy Future Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 Geothermal Natural Gas Safety, Security & Resilience of the Energy Infrastructure Energy Storage Nuclear Power & Engineering Grid Modernization Battery Testing Nuclear Fuel Cycle Defense Waste Management Programs Advanced Nuclear

  11. Hydrogen Production

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

    Production - Sandia Energy Energy Search Icon Sandia Home Locations Contact Us Employee Locator Energy & Climate Secure & Sustainable Energy Future Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 Geothermal Natural Gas Safety, Security & Resilience of the Energy Infrastructure Energy Storage Nuclear Power & Engineering Grid Modernization Battery Testing Nuclear Fuel Cycle Defense Waste Management Programs Advanced Nuclear

  12. Overview of interstate hydrogen pipeline systems.

    SciTech Connect (OSTI)

    Gillette, J .L.; Kolpa, R. L

    2008-02-01

    The use of hydrogen in the energy sector of the United States is projected to increase significantly in the future. Current uses are predominantly in the petroleum refining sector, with hydrogen also being used in the manufacture of chemicals and other specialized products. Growth in hydrogen consumption is likely to appear in the refining sector, where greater quantities of hydrogen will be required as the quality of the raw crude decreases, and in the mining and processing of tar sands and other energy resources that are not currently used at a significant level. Furthermore, the use of hydrogen as a transportation fuel has been proposed both by automobile manufacturers and the federal government. Assuming that the use of hydrogen will significantly increase in the future, there would be a corresponding need to transport this material. A variety of production technologies are available for making hydrogen, and there are equally varied raw materials. Potential raw materials include natural gas, coal, nuclear fuel, and renewables such as solar, wind, or wave energy. As these raw materials are not uniformly distributed throughout the United States, it would be necessary to transport either the raw materials or the hydrogen long distances to the appropriate markets. While hydrogen may be transported in a number of possible forms, pipelines currently appear to be the most economical means of moving it in large quantities over great distances. One means of controlling hydrogen pipeline costs is to use common rights-of-way (ROWs) whenever feasible. For that reason, information on hydrogen pipelines is the focus of this document. Many of the features of hydrogen pipelines are similar to those of natural gas pipelines. Furthermore, as hydrogen pipeline networks expand, many of the same construction and operating features of natural gas networks would be replicated. As a result, the description of hydrogen pipelines will be very similar to that of natural gas pipelines. The following discussion will focus on the similarities and differences between the two pipeline networks. Hydrogen production is currently concentrated in refining centers along the Gulf Coast and in the Farm Belt. These locations have ready access to natural gas, which is used in the steam methane reduction process to make bulk hydrogen in this country. Production centers could possibly change to lie along coastlines, rivers, lakes, or rail lines, should nuclear power or coal become a significant energy source for hydrogen production processes. Should electrolysis become a dominant process for hydrogen production, water availability would be an additional factor in the location of production facilities. Once produced, hydrogen must be transported to markets. A key obstacle to making hydrogen fuel widely available is the scale of expansion needed to serve additional markets. Developing a hydrogen transmission and distribution infrastructure would be one of the challenges to be faced if the United States is to move toward a hydrogen economy. Initial uses of hydrogen are likely to involve a variety of transmission and distribution methods. Smaller users would probably use truck transport, with the hydrogen being in either the liquid or gaseous form. Larger users, however, would likely consider using pipelines. This option would require specially constructed pipelines and the associated infrastructure. Pipeline transmission of hydrogen dates back to late 1930s. These pipelines have generally operated at less than 1,000 pounds per square inch (psi), with a good safety record. Estimates of the existing hydrogen transmission system in the United States range from about 450 to 800 miles. Estimates for Europe range from about 700 to 1,100 miles (Mohipour et al. 2004; Amos 1998). These seemingly large ranges result from using differing criteria in determining pipeline distances. For example, some analysts consider only pipelines above a certain diameter as transmission lines. Others count only those pipelines that transport hydrogen from a producer to a customer (e.g., t

  13. Hydrogen delivery technology roadmap

    SciTech Connect (OSTI)

    None, None

    2005-11-15

    Document describing plan for research into and development of hydrogen delivery technology for transportation applications.

  14. Safetygram #9- Liquid Hydrogen

    Broader source: Energy.gov [DOE]

    Hydrogen is colorless as a liquid. Its vapors are colorless, odorless, tasteless, and highly flammable.

  15. Hydrogen Compatibility of Materials

    Broader source: Energy.gov [DOE]

    Presentation slides from the Energy Department webinar, Hydrogen Compatibility of Materials, held August 13, 2013.

  16. Composition for absorbing hydrogen

    DOE Patents [OSTI]

    Heung, Leung K. (Aiken, SC); Wicks, George G. (Aiken, SC); Enz, Glenn L. (N. Augusta, SC)

    1995-01-01

    A hydrogen absorbing composition. The composition comprises a porous glass matrix, made by a sol-gel process, having a hydrogen-absorbing material dispersed throughout the matrix. A sol, made from tetraethyl orthosilicate, is mixed with a hydrogen-absorbing material and solidified to form a porous glass matrix with the hydrogen-absorbing material dispersed uniformly throughout the matrix. The glass matrix has pores large enough to allow gases having hydrogen to pass through the matrix, yet small enough to hold the particles dispersed within the matrix so that the hydrogen-absorbing particles are not released during repeated hydrogen absorption/desorption cycles.

  17. Composition for absorbing hydrogen

    DOE Patents [OSTI]

    Heung, L.K.; Wicks, G.G.; Enz, G.L.

    1995-05-02

    A hydrogen absorbing composition is described. The composition comprises a porous glass matrix, made by a sol-gel process, having a hydrogen-absorbing material dispersed throughout the matrix. A sol, made from tetraethyl orthosilicate, is mixed with a hydrogen-absorbing material and solidified to form a porous glass matrix with the hydrogen-absorbing material dispersed uniformly throughout the matrix. The glass matrix has pores large enough to allow gases having hydrogen to pass through the matrix, yet small enough to hold the particles dispersed within the matrix so that the hydrogen-absorbing particles are not released during repeated hydrogen absorption/desorption cycles.

  18. Anti-reflective nanoporous silicon for efficient hydrogen production

    DOE Patents [OSTI]

    Oh, Jihun; Branz, Howard M

    2014-05-20

    Exemplary embodiments are disclosed of anti-reflective nanoporous silicon for efficient hydrogen production by photoelectrolysis of water. A nanoporous black Si is disclosed as an efficient photocathode for H.sub.2 production from water splitting half-reaction.

  19. Jefferson Lab announces Fall Science Series line up | Jefferson Lab

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

    announces Fall Science Series line up September 5, 2003 Jefferson Lab hosts Fall and Spring Science Series to engage the public in a range of current scientific topics. Guest speakers from across the nation are invited to the Lab to present their sometimes entertaining or thought-provoking, but always informative lectures or demonstrations. The Jefferson Lab Fall Science Series kicks off on Tuesday, October 7, with Michael Henchman, a chemistry professor from Brandeis University, Massachusetts.

  20. Office of Indian Energy Newsletter: Fall 2012 | Department of Energy

    Energy Savers [EERE]

    Fall 2012 Office of Indian Energy Newsletter: Fall 2012 Indian Energy Beat: News on Actions to Accelerate Energy Development in Indian Country Fall 2012 Issue: DOE Office of Indian Energy Provides Tribes with Hands-On Support to Advance Tribal Energy Projects Message from the Director Sharing Knowledge: DOE Office of Indian Energy Commissions Regional Transmission and Renewable Energy Analysis Opening Doors: Seminole Tribe to Host Grant Proposal Writing Workshop Crow Nation Students Participate

  1. Alaska Energy Pioneer Fall 2015 Newsletter | Department of Energy

    Energy Savers [EERE]

    Fall 2015 Newsletter Alaska Energy Pioneer Fall 2015 Newsletter The U.S. Department of Energy Office of Indian Energy's Alaska Energy Pioneer Fall 2015 newsletter highlights opportunities and actions to accelerate Alaska Native energy development. Read newsletter stories below or download the newsletter at the bottom of the page. Alaska Native Village Energy Challenges a Priority for DOE Image of people. Since joining the DOE Office of Indian Energy in May, new Director Chris Deschene has made

  2. AWEA Wind Energy Fall Symposium 2015 | Department of Energy

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

    Energy Fall Symposium 2015 AWEA Wind Energy Fall Symposium 2015 November 3, 2015 8:00PM MST to November 5, 2015 5:00PM MST Albuquerque, New Mexico The AWEA Wind Energy Fall Symposium provides participants with an opportunity to share successes, strategies, and lessons-learned. It is one of the only venues where AWEA's committees, working groups, and Board of Directors convene face-to-face. Learn more.

  3. FUPWG Fall 2014 Agenda and Presentations | Department of Energy

    Office of Environmental Management (EM)

    FUPWG Fall 2014 Agenda and Presentations FUPWG Fall 2014 Agenda and Presentations This page features links to the presentations given during the fall 2014 Federal Utility Partnership Working Group meeting, which took place November 5-6, 2014 in Cape Canaveral, FL. PDF icon Welcome: Presented by Pam Rauch PDF icon DOE/FEMP Welcome and Announcements: Presented by David McAndrew PDF icon Washington Update: Presented by Tim Unruh PDF icon GSA Update: Presented by Mark Ewing PDF icon Future of

  4. Two-stage coal liquefaction without gas-phase hydrogen

    DOE Patents [OSTI]

    Stephens, H.P.

    1986-06-05

    A process is provided for the production of a hydrogen-donor solvent useful in the liquefaction of coal, wherein the water-gas shift reaction is used to produce hydrogen while simultaneously hydrogenating a donor solvent. A process for the liquefaction of coal using said solvent is also provided. The process enables avoiding the use of a separate water-gas shift reactor as well as high pressure equipment for liquefaction. 3 tabs.

  5. Olmsted Falls, Ohio: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    district.12 Registered Energy Companies in Olmsted Falls, Ohio Nautica Windpower LLC References US Census Bureau Incorporated place and minor civil division...

  6. Accident Investigation of the September 20, 2012 Fatal Fall from...

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

    September 20, 2012 Fatal Fall from the Dworshak-Taft 1 Transmission Tower, at the Bonneville Power Marketing Administration Accident Investigation of the September 20, 2012 Fatal ...

  7. Hampton Falls, New Hampshire: Energy Resources | Open Energy...

    Open Energy Info (EERE)

    Hampton Falls, New Hampshire: Energy Resources Jump to: navigation, search Equivalent URI DBpedia Coordinates 42.9162011, -70.8636648 Show Map Loading map......

  8. Green Mountain Falls, Colorado: Energy Resources | Open Energy...

    Open Energy Info (EERE)

    Falls, Colorado: Energy Resources Jump to: navigation, search Equivalent URI DBpedia Coordinates 38.9349905, -105.0169263 Show Map Loading map... "minzoom":false,"mappingservi...

  9. Falls Church, Virginia: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    Church, Virginia: Energy Resources (Redirected from Falls Church, VA) Jump to: navigation, search Equivalent URI DBpedia Coordinates 38.882334, -77.1710914 Show Map Loading...

  10. Little Falls-South Windham, Maine: Energy Resources | Open Energy...

    Open Energy Info (EERE)

    Little Falls-South Windham, Maine: Energy Resources Jump to: navigation, search Equivalent URI DBpedia Coordinates 43.7333197, -70.4270734 Show Map Loading map......

  11. Idaho Falls Power- Commercial Energy Conservation Rebate Program

    Broader source: Energy.gov [DOE]

    Idaho Falls Power offers rebates and loans for customers meeting certain criteria. An energy audit will inspect the following measures and recommend upgrades as needed:

  12. Idaho Falls Power- Commercial Energy Conservation Loan Program

    Broader source: Energy.gov [DOE]

    Idaho Falls Power offers rebates and loans for customers meeting certain criteria. An energy audit will inspect the following measures and recommend upgrades as needed:

  13. #tipsEnergy: Weatherizing Your Home for Fall

    Broader source: Energy.gov [DOE]

    With the start of colder weather, we are sharing fall energy-saving tips that will help you save money and stay comfortable.

  14. Idaho Falls Power- Residential Energy Efficiency Loan Program

    Broader source: Energy.gov [DOE]

    Idaho Falls Power's Energy Efficiency Loan Program offers zero interest loans for qualifying customers to purchase and install efficient electric appliances and implement weatherization measures....

  15. Idaho Falls Power- Residential Energy Efficiency Rebate Program

    Broader source: Energy.gov [DOE]

    Idaho Falls Power's Energy Efficiency Loan Program offers rebates for qualifying customers to purchase and install efficient electric appliances and implement weatherization measures. The program...

  16. Niagara Falls, New York: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    New York's 28th congressional district.12 Registered Energy Companies in Niagara Falls, New York Canrom Photovoltaics Inc References US Census Bureau Incorporated...

  17. How Will You Save Energy This Fall? | Department of Energy

    Energy Savers [EERE]

    to respond to other comments. Addthis Related Articles How Should Energy Savers Use Facebook? How Do You Light Your Home Efficiently? Get Ready for Fall: Leaf Peeping, Staying...

  18. Idaho Falls, Idaho: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    Registered Energy Companies in Idaho Falls, Idaho ALDACOR Intrepid Technology and Resources Inc References US Census Bureau Incorporated place and minor civil division...

  19. ADDENDUM TO ACTION DESCRIPTION MEMORANDUM NIAGARA FALLS STORAGE...

    Office of Legacy Management (LM)

    ACTION DESCRIPTION MEMORANDUM NIAGARA FALLS STORAGE SITE PROPOSED INTERIM REMEDIAL ACTIONS ... July 1984 Prepared for U.S. Department of Energy Oak Ridge Operations Technical Services ...

  20. Carbonate thermochemical cycle for the production of hydrogen

    DOE Patents [OSTI]

    Collins, Jack L (Knoxville, TN) [Knoxville, TN; Dole, Leslie R (Knoxville, TN) [Knoxville, TN; Ferrada, Juan J (Knoxville, TN) [Knoxville, TN; Forsberg, Charles W (Oak Ridge, TN) [Oak Ridge, TN; Haire, Marvin J (Oak Ridge, TN) [Oak Ridge, TN; Hunt, Rodney D (Oak Ridge, TN) [Oak Ridge, TN; Lewis Jr., Benjamin E (Knoxville, TN) [Knoxville, TN; Wymer, Raymond G (Oak Ridge, TN) [Oak Ridge, TN

    2010-02-23

    The present invention is directed to a thermochemical method for the production of hydrogen from water. The method includes reacting a multi-valent metal oxide, water and a carbonate to produce an alkali metal-multi-valent metal oxide compound, carbon dioxide, and hydrogen.

  1. Hydrogen iodide decomposition

    DOE Patents [OSTI]

    O'Keefe, Dennis R. (San Diego, CA); Norman, John H. (San Diego, CA)

    1983-01-01

    Liquid hydrogen iodide is decomposed to form hydrogen and iodine in the presence of water using a soluble catalyst. Decomposition is carried out at a temperature between about 350.degree. K. and about 525.degree. K. and at a corresponding pressure between about 25 and about 300 atmospheres in the presence of an aqueous solution which acts as a carrier for the homogeneous catalyst. Various halides of the platinum group metals, particularly Pd, Rh and Pt, are used, particularly the chlorides and iodides which exhibit good solubility. After separation of the H.sub.2, the stream from the decomposer is countercurrently extracted with nearly dry HI to remove I.sub.2. The wet phase contains most of the catalyst and is recycled directly to the decomposition step. The catalyst in the remaining almost dry HI-I.sub.2 phase is then extracted into a wet phase which is also recycled. The catalyst-free HI-I.sub.2 phase is finally distilled to separate the HI and I.sub.2. The HI is recycled to the reactor; the I.sub.2 is returned to a reactor operating in accordance with the Bunsen equation to create more HI.

  2. The Correlation of Coupled Heat and Mass Transfer Experimental Data for Vertical Falling Film Absorption

    SciTech Connect (OSTI)

    Keyhani, M.; Miller, W.A.

    1999-11-14

    Absorption chillers are gaining global acceptance as quality comfort cooling systems. These machines are the central chilling plants and the supply for cotnfort cooling for many large commercial buildings. Virtually all absorption chillers use lithium bromide (LiBr) and water as the absorption fluids. Water is the refrigerant. Research has shown LiBr to he one of the best absorption working fluids because it has a high affinity for water, releases water vapor at relatively low temperatures, and has a boiling point much higher than that of water. The heart of the chiller is the absorber, where a process of simultaneous heat and mass transfer occurs as the refrigerant water vapor is absorbed into a falling film of aqueous LiBr. The more water vapor absorbed into the falling film, the larger the chiller?s capacity for supporting comfort cooling. Improving the performance of the absorber leads directly to efficiency gains for the chiller. The design of an absorber is very empirical and requires experimental data. Yet design data and correlations are sparse in the open literature. The experimental data available to date have been derived at LiBr concentrations ranging from 0.30 to 0.60 mass fraction. No literature data are readily available for the design operating conditions of 0.62 and 0.64 mass fraction of LiBr and absorber pressures of 0.7 and 1.0 kPa.

  3. Visit us at the American Geophysical Union (AGU) Fall Meeting, Booth#1211 |

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

    Dec 14-18th us at the American Geophysical Union (AGU) Fall Meeting, Booth#1211 | Dec 14-18th - Sandia Energy Energy Search Icon Sandia Home Locations Contact Us Employee Locator Energy & Climate Secure & Sustainable Energy Future Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 Geothermal Natural Gas Safety, Security & Resilience of the Energy Infrastructure Energy Storage Nuclear Power & Engineering Grid Modernization

  4. Hydrogen Delivery Technologies and Systems- Pipeline Transmission of Hydrogen

    Broader source: Energy.gov [DOE]

    Hydrogen Delivery Technologies and Systems - Pipeline Transmission of Hydrogen. Design and operations standards and materials for hydrogen and natural gas pipelines.

  5. Hydrogen Power Inc formerly Hydrogen Power International and...

    Open Energy Info (EERE)

    Power Inc formerly Hydrogen Power International and Equitex Inc Jump to: navigation, search Name: Hydrogen Power, Inc. (formerly Hydrogen Power International and Equitex Inc.)...

  6. Hydrogen permeability and Integrity of hydrogen transfer pipelines...

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

    permeability and Integrity of hydrogen transfer pipelines Hydrogen permeability and ... Presentation by 03-Babu for the DOE Hydrogen Pipeline R&D Project Review Meeting held ...

  7. Hydrogen Fuel Cell Bus Evaluation: Report for the 2001 Hydrogen...

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

    Bus Evaluation: Report for the 2001 Hydrogen Program Review Hydrogen Fuel Cell Bus Evaluation: Report for the 2001 Hydrogen Program Review This paper, presented at the 2001 DOE...

  8. Modelling Hydrogen Reduction and Hydrodeoxygenation of Oxygenates

    SciTech Connect (OSTI)

    Zhao, Y.; Xu, Q.; Cheah, S.

    2013-01-01

    Based on Density Functional Theory (DFT) simulations, we have studied the reduction of nickel oxide and biomass derived oxygenates (catechol, guaiacol, etc.) in hydrogen. Both the kinetic barrier and thermodynamic favorability are calculated with respect to the modeled reaction pathways. In early-stage reduction of the NiO(100) surface by hydrogen, the pull-off of the surface oxygen atom and simultaneous activation of the nearby Ni atoms coordinately dissociate the hydrogen molecules so that a water molecule can be formed, leaving an oxygen vacancy on the surface. In hydrogen reaction with oxygenates catalyzed by transition metals, hydrogenation of the aromatic carbon ring normally dominates. However, selective deoxygenation is of particular interest for practical application such as biofuel conversion. Our modeling shows that doping of the transition metal catalysts can change the orientation of oxygenates adsorbed on metal surfaces. The correlation between the selectivity of reaction and the orientation of adsorption are discussed.

  9. economic hydrogen fuel cell vehicles

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

    economic hydrogen fuel cell vehicles - Sandia Energy Energy Search Icon Sandia Home Locations Contact Us Employee Locator Energy & Climate Secure & Sustainable Energy Future Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 Geothermal Natural Gas Safety, Security & Resilience of the Energy Infrastructure Energy Storage Nuclear Power & Engineering Grid Modernization Battery Testing Nuclear Fuel Cycle Defense Waste Management

  10. Hydrolysis reactor for hydrogen production

    DOE Patents [OSTI]

    Davis, Thomas A.; Matthews, Michael A.

    2012-12-04

    In accordance with certain embodiments of the present disclosure, a method for hydrolysis of a chemical hydride is provided. The method includes adding a chemical hydride to a reaction chamber and exposing the chemical hydride in the reaction chamber to a temperature of at least about 100.degree. C. in the presence of water and in the absence of an acid or a heterogeneous catalyst, wherein the chemical hydride undergoes hydrolysis to form hydrogen gas and a byproduct material.

  11. hydrogen is produced by electrolysis

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

    hydrogen is produced by electrolysis - Sandia Energy Energy Search Icon Sandia Home Locations Contact Us Employee Locator Energy & Climate Secure & Sustainable Energy Future Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 Geothermal Natural Gas Safety, Security & Resilience of the Energy Infrastructure Energy Storage Nuclear Power & Engineering Grid Modernization Battery Testing Nuclear Fuel Cycle Defense Waste Management

  12. Hydrogen & Our Energy Future

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

    Hydrogen Program www.hydrogen.energy.gov Hydrogen & Our Energy Future  | HydrOgEn & Our EnErgy FuturE U.S. Department of Energy Hydrogen Program www.hydrogen.energy.gov u.S. department of Energy |  www.hydrogen.energy.gov Hydrogen & Our Energy Future Contents Introduction ................................................... p.1 Hydrogen - An Overview ................................... p.3 Production ..................................................... p.5 Delivery

  13. Hydrogen Pipelines | Department of Energy

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

    Gaseous Hydrogen » Hydrogen Pipelines Hydrogen Pipelines Photo of a hydrogen pipeline. Gaseous hydrogen can be transported through pipelines much the way natural gas is today. Approximately 1,500 miles of hydrogen pipelines are currently operating in the United States. Owned by merchant hydrogen producers, these pipelines are located where large hydrogen users, such as petroleum refineries and chemical plants, are concentrated such as the Gulf Coast region. Transporting gaseous hydrogen via

  14. HYDROGEN IGNITION MECHANISM FOR EXPLOSIONS IN NUCLEAR FACILITY PIPE SYSTEMS

    SciTech Connect (OSTI)

    Leishear, R

    2010-05-02

    Hydrogen and oxygen generation due to the radiolysis of water is a recognized hazard in pipe systems used in the nuclear industry, where the accumulation of hydrogen and oxygen at high points in the pipe system is expected, and explosive conditions exist. Pipe ruptures at nuclear facilities were attributed to hydrogen explosions inside pipelines, in nuclear facilities, i.e., Hamaoka, Nuclear Power Station in Japan, and Brunsbuettel in Germany. Prior to these accidents an ignition source for hydrogen was questionable, but these accidents, demonstrated that a mechanism was, in fact, available to initiate combustion and explosion. Hydrogen explosions may occur simultaneously with water hammer accidents in nuclear facilities, and a theoretical mechanism to relate water hammer to hydrogen deflagrations and explosions is presented herein.

  15. Hydrogen Production by Polymer Electrolyte Membrane (PEM)

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

    Electrolysis-Spotlight on Giner and Proton | Department of Energy by Polymer Electrolyte Membrane (PEM) Electrolysis-Spotlight on Giner and Proton Hydrogen Production by Polymer Electrolyte Membrane (PEM) Electrolysis-Spotlight on Giner and Proton Presentation slides and speaker biographies from the DOE Fuel Cell Technologies Office webinar "Hydrogen Production by Polymer Electrolyte Membrane (PEM) Electrolysis-Spotlight on Giner and Proton" held on May 23, 2011. PDF icon Water

  16. Porous polymeric materials for hydrogen storage

    DOE Patents [OSTI]

    Yu, Luping; Liu, Di-Jia; Yuan, Shengwen; Yang, Junbing

    2013-04-02

    A porous polymer, poly-9,9'-spirobifluorene and its derivatives for storage of H.sub.2 are prepared through a chemical synthesis method. The porous polymers have high specific surface area and narrow pore size distribution. Hydrogen uptake measurements conducted for these polymers determined a higher hydrogen storage capacity at the ambient temperature over that of the benchmark materials. The method of preparing such polymers, includes oxidatively activating solids by CO.sub.2/steam oxidation and supercritical water treatment.

  17. Hydrogen transport membranes

    DOE Patents [OSTI]

    Mundschau, Michael V.

    2005-05-31

    Composite hydrogen transport membranes, which are used for extraction of hydrogen from gas mixtures are provided. Methods are described for supporting metals and metal alloys which have high hydrogen permeability, but which are either too thin to be self supporting, too weak to resist differential pressures across the membrane, or which become embrittled by hydrogen. Support materials are chosen to be lattice matched to the metals and metal alloys. Preferred metals with high permeability for hydrogen include vanadium, niobium, tantalum, zirconium, palladium, and alloys thereof. Hydrogen-permeable membranes include those in which the pores of a porous support matrix are blocked by hydrogen-permeable metals and metal alloys, those in which the pores of a porous metal matrix are blocked with materials which make the membrane impervious to gases other than hydrogen, and cermets fabricated by sintering powders of metals with powders of lattice-matched ceramic.

  18. Hydrogen Storage- Basics

    Broader source: Energy.gov [DOE]

    Storing enough hydrogen on-board a vehicle to achieve a driving range of greater than 300 miles is a significant challenge. On a weight basis, hydrogen has nearly three times the energy content of...

  19. Hydrogen Program Overview

    Fuel Cell Technologies Publication and Product Library (EERE)

    This 2-page fact sheet provides a brief introduction to the DOE Hydrogen Program. It describes the program mission and answers the question: “Why Hydrogen?”

  20. Hydrogen Safety Knowledge Tools

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

    Data Partners Best Practices - LANL, SNL, NREL, NASA, Hydrogen Safety Panel, and IEA HIA Tasks 19 and 22 Incident Reporting - NASA and Hydrogen Safety Panel 3 Objectives H2...

  1. Hydrogen Technologies Safety Guide

    SciTech Connect (OSTI)

    Rivkin, C.; Burgess, R.; Buttner, W.

    2015-01-01

    The purpose of this guide is to provide basic background information on hydrogen technologies. It is intended to provide project developers, code officials, and other interested parties the background information to be able to put hydrogen safety in context. For example, code officials reviewing permit applications for hydrogen projects will get an understanding of the industrial history of hydrogen, basic safety concerns, and safety requirements.

  2. National hydrogen energy roadmap

    SciTech Connect (OSTI)

    None, None

    2002-11-01

    This roadmap provides a blueprint for the coordinated, long-term, public and private efforts required for hydrogen energy development.

  3. Hydrogen | Department of Energy

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

    Hydrogen Hydrogen December 22, 2015 The three reports released by the Energy Department highlight continued strength, progress and innovation in the U.S. fuel cell hydrogen technologies market. Energy Department Reports: U.S. Fuel Cell Market Production and Deployment Continues Strong Growth The Energy Department released three new reports today showcasing strong growth across the U.S. fuel cell and hydrogen technologies market - continuing America's leadership in clean energy innovation and

  4. Niagara Falls Storage Site annual environmental report for calendar year 1991, Lewiston, New York. [Niagara Falls Storage Site

    SciTech Connect (OSTI)

    Not Available

    1992-09-01

    This document describes the environmental monitoring program at the Niagara Falls Storage Site (NFSS) and surrounding area, implementation of the program, and monitoring results for 1991. Environmental monitoring at NFSS began in 1981. The site is owned by the US Department of Energy (DOE) and is assigned to the DOE Formerly Utilized Sites Remedial Action Program (FUSRAP). FUSRAP is a program to decontaminate or otherwise control sites where residual radioactive materials remain from the early years of the nation's atomic energy program or from commercial operations causing conditions that Congress has authorized DOE to remedy. The environmental monitoring program at NFSS includes sampling networks for radon concentrations in air; external gamma radiation exposure; and total uranium and radium-226 concentrations in surface water, sediments, and groundwater. Additionally, several nonradiological parameters including seven metals are routinely measured in groundwater. Monitoring results are compared with applicable Environmental Protection Agency (EPA) standards, DOE derived concentration guides (DCGs), dose limits, and other requirements in DOE orders. Environmental standards are established to protect public health and the environment.

  5. Sensitive hydrogen leak detector

    DOE Patents [OSTI]

    Myneni, Ganapati Rao (Yorktown, VA)

    1999-01-01

    A sensitive hydrogen leak detector system using passivation of a stainless steel vacuum chamber for low hydrogen outgassing, a high compression ratio vacuum system, a getter operating at 77.5 K and a residual gas analyzer as a quantitative hydrogen sensor.

  6. Sensitive hydrogen leak detector

    DOE Patents [OSTI]

    Myneni, G.R.

    1999-08-03

    A sensitive hydrogen leak detector system is described which uses passivation of a stainless steel vacuum chamber for low hydrogen outgassing, a high compression ratio vacuum system, a getter operating at 77.5 K and a residual gas analyzer as a quantitative hydrogen sensor. 1 fig.

  7. Algal Biofuels Strategy Workshop - Fall Event

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

    21 Chapter 2: Cultivation Algae as a Wastewater Treatment Solution/Opportunities for Niche Micro-Algae Farms Conveners: Deborah Newby; Lowell Collins Discussion: This session was convened to discuss algae as a solution to on-farm and industrial effluent streams, including animal wastes (solid and urine wastes), municipal wastewater, and food and manufacturing water waste streams. Based on the discussions, there are a large number of potential niche opportunities where algae production objectives

  8. DEVELOPMENT OF DOPED NANOPOROUS CARBONS FOR HYDROGEN STORAGE

    SciTech Connect (OSTI)

    Angela D. Lueking; Qixiu Li; John V. Badding; Dania Fonseca; Humerto Gutierrez; Apurba Sakti; Kofi Adu; Michael Schimmel

    2010-03-31

    Hydrogen storage materials based on the hydrogen spillover mechanism onto metal-doped nanoporous carbons are studied, in an effort to develop materials that store appreciable hydrogen at ambient temperatures and moderate pressures. We demonstrate that oxidation of the carbon surface can significantly increase the hydrogen uptake of these materials, primarily at low pressure. Trace water present in the system plays a role in the development of active sites, and may further be used as a strategy to increase uptake. Increased surface density of oxygen groups led to a significant enhancement of hydrogen spillover at pressures less than 100 milibar. At 300K, the hydrogen uptake was up to 1.1 wt. % at 100 mbar and increased to 1.4 wt. % at 20 bar. However, only 0.4 wt% of this was desorbable via a pressure reduction at room temperature, and the high lowpressure hydrogen uptake was found only when trace water was present during pretreatment. Although far from DOE hydrogen storage targets, storage at ambient temperature has significant practical advantages oner cryogenic physical adsorbents. The role of trace water in surface modification has significant implications for reproducibility in the field. High-pressure in situ characterization of ideal carbon surfaces in hydrogen suggests re-hybridization is not likely under conditions of practical interest. Advanced characterization is used to probe carbon-hydrogen-metal interactions in a number of systems and new carbon materials have been developed.

  9. Alternative Transportation Technologies: Hydrogen, Biofuels,...

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

    Transportation Technologies: Hydrogen, Biofuels, Advanced Efficiency, and Plug-in Hybrid Electric Vehicles Alternative Transportation Technologies: Hydrogen, Biofuels, Advanced ...

  10. Alternative Fuels Data Center: Hydrogen

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

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

  11. Fall: Energy Saving Changes with the Season | Department of Energy

    Energy Savers [EERE]

    Fall: Energy Saving Changes with the Season Fall: Energy Saving Changes with the Season October 18, 2011 - 6:42am Addthis Andrea Spikes Former Communicator at DOE's National Renewable Energy Laboratory I'm sure you've noticed the change in seasons by now. Fall brings cooler weather, and with it my thoughts turn to warm things like putting blankets on the couch, enjoying my fireplace, and adjusting my thermostat (as little as possible, of course). One thing we did over the weekend is we insulated

  12. AWEA Wind Energy Fall Symposium 2016 | Department of Energy

    Energy Savers [EERE]

    Wind Energy Fall Symposium 2016 AWEA Wind Energy Fall Symposium 2016 November 15, 2016 8:00AM MST to November 17, 2016 5:00PM MST San Antonio, Texas Hyatt Regency Hill Country Resort and Spa 9800 Hyatt Resort Drive San Antonio, Texas 78251 The American Wind Energy Association (AWEA) Wind Energy Fall Symposium sets the stage for sharing successes, strategies, and lessons-learned with wind energy industry peers. This exclusive, top-tier event is one of the only venues where AWEA's committees,

  13. Remedial action plan and site design for stabilization of the inactive uranium mill tailings site at Falls City, Texas. Remedial action selection report, attachment 2, geology report; attachment 3, groundwater hydrology report; and attachment 4, water resources protection strategy. Final report

    SciTech Connect (OSTI)

    1992-09-01

    The uranium processing site near Falls City, Texas, was one of 24 inactive uranium mill sites designated to be remediated by the U.S. Department of Energy (DOE) under Title I of the Uranium Mill Tailings Radiation Control Act of 1978 (UMTRCA). The UMTRCA requires that the U.S. Nuclear Regulatory Commission (NRC) concur with the DOE`s remedial action plan (RAP) and certify that the remedial action conducted at the site complies with the standards promulgated by the U.S. Environmental Protection Agency (EPA). The RAP, which includes this summary remedial action selection report (RAS), serves a two-fold purpose. First, it describes the activities proposed by the DOE to accomplish long-term stabilization and control of the residual radioactive materials at the inactive uranium processing site near Falls City, Texas. Second, this document and the remainder of the RAP, upon concurrence and execution by the DOE, the State of Texas, and the NRC, becomes Appendix B of the Cooperative Agreement between the DOE and the State of Texas.

  14. Renewable Hydrogen | Department of Energy

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

    Hydrogen Renewable Hydrogen Welcoming presentations at the Delivering Renewable Hydrogen Workshop: A Focus on Near-Term Applications, Nov. 16, 2009, Palm Springs, CA PDF icon renewable_hydrogen_workshop_nov16_remick.pdf More Documents & Publications National Hydrogen Learning Demonstration Status CoolCab Truck Thermal Load Reduction Hydrogen Transmission and Distribution Workshop

  15. Fall and Winter Energy-Saving Tips | Department of Energy

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

    Simple and inexpensive actions can help you save energy and money during the cool fall and winter months. | Photo courtesy of iStockphoto.com. Simple and inexpensive actions...

  16. Fall City, Washington: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    a stub. You can help OpenEI by expanding it. Fall City is a census-designated place in King County, Washington.1 References US Census Bureau 2005 Place to 2006 CBSA...

  17. Great Falls, Virginia: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    Hide Map This article is a stub. You can help OpenEI by expanding it. Great Falls is a census-designated place in Fairfax County, Virginia.1 Registered Energy...

  18. Fall River Rural Elec Coop Inc (Wyoming) | Open Energy Information

    Open Energy Info (EERE)

    Website: www.fallriverelectric.com Facebook: https:www.facebook.comFallRiverREC Outage Hotline: 1.866.887.8442 (After Hours) Outage Map: outage.fallriverelectric.como...

  19. City of Cuyahoga Falls, Ohio (Utility Company) | Open Energy...

    Open Energy Info (EERE)

    navigation, search Name: City of Cuyahoga Falls Place: Ohio Website: cfo.cityofcf.comweb Outage Hotline: 330-971-8050 References: EIA Form EIA-861 Final Data File for 2010 -...

  20. EIS-0106: Great Falls-Conrad Transmission Line Project, Montana

    Broader source: Energy.gov [DOE]

    The Western Area Power Administration prepared this EIS to evaluate the environmental impacts of the construction and operation of a 230-kilovolt transmission line from Great Falls, Montana, to Conrad, Montana.

  1. Redwood Falls Public Util Comm | Open Energy Information

    Open Energy Info (EERE)

    Comm Place: Minnesota Phone Number: 507-627-1301 Website: www.ci.redwood-falls.mn.uscit Outage Hotline: 507-627-8430 References: EIA Form EIA-861 Final Data File for 2010 -...

  2. Fall SULI program wraps up | The Ames Laboratory

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

    fall semester session with a poster session and luncheon on December 8. The students, Kaiser Aguirre, Adam Dziulko, Shannon Goes, and Kathryn White have spent the last 16 weeks...

  3. Operating Experience Level 3, Dangers of Objects Falling into...

    Energy Savers [EERE]

    3 (OE-3) document provides information about a safety concern related to the dangers of items falling from heights into spaces normally occupied by workers at Department of Energy...

  4. Evaluation of Juvenile Fall Chinook Salmon Stranding on the Hanford Reach in the Columbia River, 1998 Interim Report.

    SciTech Connect (OSTI)

    Nugent, John; Newsome, Todd; Nugent, Michael

    2001-07-27

    The Washington Department of Fish and Wildlife (WDFW) has been contracted through the Bonneville Power Administration (BPA) and the Grant County Public Utility District (GCPUD) to perform an evaluation of juvenile fall chinook salmon (Oncorhynchus tshawytscha) stranding on the Hanford Reach. The evaluation, in the second year of a multi-year study, has been developed to assess the impacts of water fluctuations from Priest Rapids Dam on rearing juvenile fall chinook salmon, other fish species, and benthic macroinvertebrates of the Hanford Reach. This document provides the results of the 1998 field season.

  5. Evaluation of Juvenile Fall Chinook Salmon Stranding on the Hanford Reach of the Columbia River, 2000 Annual Report.

    SciTech Connect (OSTI)

    Nugent, John; Nugent, Michael; Brock, Wendy

    2002-05-29

    The Washington Department of Fish and Wildlife (WDFW) has been contracted through the Bonneville Power Administration (BPA) and the Grant County Public Utility District (GCPUD) to perform an evaluation of juvenile fall chinook salmon (Oncorhynchus tshawytscha) stranding on the Hanford Reach. The evaluation, in the fourth year of a multi-year study, has been developed to assess the impacts of water fluctuations from Priest Rapids Dam on rearing juvenile fall chinook salmon, other fishes, and benthic macroinvertebrates of the Hanford Reach. This document provides the results of the 2000 field season.

  6. Evaluation of Juvenile Fall Chinook Salmon Stranding on the Hanford Reach of the Columbia River, 2001 Annual Report.

    SciTech Connect (OSTI)

    Nugent, John; Nugent, Michael; Brock, Wendy

    2002-05-29

    The Washington Department of Fish and Wildlife (WDFW) has been contracted through the Bonneville Power Administration (BPA) and the Grant County Public Utility District (GCPUD) to perform an evaluation of juvenile fall chinook salmon (Oncorhynchus tshawytscha) stranding on the Hanford Reach of the Columbia River. The evaluation, in the fifth year of a multi-year study, has been developed to assess the impacts of water fluctuations from Priest Rapids Dam on rearing juvenile fall chinook salmon, other fishes, and benthic macroinvertebrates of the Hanford Reach. This document provides the results of the 2001 field season.

  7. Evaluation of Juvenile Fall Chinook Salmon Stranding on the Hanford Reach of the Columbia River, 1999 Annual Report.

    SciTech Connect (OSTI)

    Nugent, John

    2002-01-24

    The Washington Department of Fish and Wildlife (WDFW) has been contracted through the Bonneville Power Administration (BPA) and the Grant County Public Utility District (GCPUD) to perform an evaluation of juvenile fall chinook salmon (Oncorhynchus tshawytscha) stranding on the Hanford Reach. The evaluation, in the third year of a multi-year study, has been developed to assess the impacts of water fluctuations from Priest Rapids Dam on rearing juvenile fall chinook salmon, other fishes, and benthic macroinvertebrates of the Hanford Reach. This document provides the results of the 1999 field season.

  8. Development Of A Centrifugal Hydrogen Pipeline Gas Compressor

    SciTech Connect (OSTI)

    Di Bella, Francis A.

    2015-04-16

    Concepts NREC (CN) has completed a Department of Energy (DOE) sponsored project to analyze, design, and fabricate a pipeline capacity hydrogen compressor. The pipeline compressor is a critical component in the DOE strategy to provide sufficient quantities of hydrogen to support the expected shift in transportation fuels from liquid and natural gas to hydrogen. The hydrogen would be generated by renewable energy (solar, wind, and perhaps even tidal or ocean), and would be electrolyzed from water. The hydrogen would then be transported to the population centers in the U.S., where fuel-cell vehicles are expected to become popular and necessary to relieve dependency on fossil fuels. The specifications for the required pipeline hydrogen compressor indicates a need for a small package that is efficient, less costly, and more reliable than what is available in the form of a multi-cylinder, reciprocating (positive displacement) compressor for compressing hydrogen in the gas industry.

  9. Microsoft Word - IAC_Fall_2015_Newsletter_Final

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

    Fall 2015 INDUSTRIAL ASSESSMENT CENTERS IAC Quarterly Update Spring 2014 INDUSTRIAL ASSESSMENT CENTERS IAC Update, Fall 2015 About the IAC Program Beginning in 1976, the Industrial Assessment Centers (IACs) have provided small and medium-sized manufacturers with site- specific recommendations for improving energy efficiency, reducing waste, and increasing productivity through changes in processes and equipment. A typical IAC client will receive recommendations that save more than $47,000

  10. Jefferson Lab Announces Two Fall Science Series Events | Jefferson Lab

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

    Announces Two Fall Science Series Events September 10, 2004 Oct. 4 event features discussion of the astronomical allusions of Tolkien's Middle-earth; Nov. 23 speaker examines food toxins & how to avoid them Kristine Larsen, professor of astronomy and physics from Central Connecticut State University, will discuss the astronomy of J.R.R. Tolkien's Middle-earth at Jefferson Lab's first Fall 2004 Science Series event. The presentation will begin at 7 p.m. in the CEBAF Center auditorium on

  11. Jefferson Lab Fall Lecture: Exploring Our World With Particle Accelerators

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

    | Jefferson Lab Fall Lecture: Exploring Our World With Particle Accelerators NEWPORT NEWS, Va., Nov. 9, 2010 - Jefferson Lab's 2010 Fall Science Lecture Series concludes on Tuesday, Nov. 23, with James E. Brau, University of Oregon, presenting "The Mysterious Universe: Exploring Our World with Particle Accelerators." The universe is dark and mysterious, more so than even Einstein imagined, Brau says. While modern science has established an understanding of ordinary matter,

  12. Jefferson Lab adds three popular presentations to Fall Science Series

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

    line-up | Jefferson Lab adds three popular presentations to Fall Science Series line-up October 9, 2002 Three popular presentations have been added to Jefferson Lab's Fall Science Series schedule. Each one promises to be a stimulating, educational foray into scientific topics, says Linda Ware, Lab Public Affairs manager. On Wednesday Oct. 23, Sean M. Carroll from the University of Chicago's Center for Cosmological Physics, brings to the Lab his discussion of "Dark Energy and the

  13. Technology Advancements for Next Generation Falling Particle Receivers.

    Office of Scientific and Technical Information (OSTI)

    (Conference) | SciTech Connect Technology Advancements for Next Generation Falling Particle Receivers. Citation Details In-Document Search Title: Technology Advancements for Next Generation Falling Particle Receivers. Abstract not provided. Authors: Ho, Clifford K. ; Gill, David Dennis ; Jeter, S. ; Abdel-Khalik, S. ; Sadowski, D. ; Siegel, Nathan Phillip ; Al-Ansary, H. ; Amsbeck, L. ; Buck, R. ; Gobereit, B. ; Christian, Joshua Mark Publication Date: 2013-09-01 OSTI Identifier: 1140577

  14. Operating Experience Level 3, Fall Protection Can Prevent Serious Injuries

    Broader source: Energy.gov [DOE]

    2015-05: This Operating Experience Level 3 (OE-3) document provides information about a safety concern related to incidents at Department of Energy (DOE) facilities in which fall protection requirements were not followed. According to the Occupational Safety and Health Administration (OSHA), falls from elevations, including into holes in floors, are the leading cause of worker fatalities in the U.S. construction industry.

  15. FUPWG Fall 2015 Agenda and Presentations | Department of Energy

    Energy Savers [EERE]

    5 Agenda and Presentations FUPWG Fall 2015 Agenda and Presentations This page features presentations given at the fall 2015 Federal Utility Partnership Working Group (FUPWG) seminar on November 3-4, 2015, at CenterPoint Energy headquarters in Houston, Texas. PDF icon Welcome: Presented by Debbie Korenek PDF icon DOE/FEMP Welcome and Announcements: Presented by David McAndrew PDF icon Washington Update: Presented by Tim Unruh PDF icon DOD Update and Navy Utility Partnerships Overview: Presented

  16. Historical Doses from Tritiated Water and Tritiated Hydrogen Gas Released to the Atmosphere from Lawrence Livermore National Laboratory (LLNL). Part 6. Summary

    SciTech Connect (OSTI)

    Peterson, S

    2007-09-05

    Throughout fifty-three years of operations, an estimated 792,000 Ci (29,300 TBq) of tritium have been released to the atmosphere at the Livermore site of Lawrence Livermore National Laboratory (LLNL); about 75% was tritium gas (HT) primarily from the accidental releases of 1965 and 1970. Routine emissions contributed slightly more than 100,000 Ci (3,700 TBq) HT and about 75,000 Ci (2,800 TBq) tritiated water vapor (HTO) to the total. A Tritium Dose Reconstruction was undertaken to estimate both the annual doses to the public for each year of LLNL operations and the doses from the few accidental releases. Some of the dose calculations were new, and the others could be compared with those calculated by LLNL. Annual doses (means and 95% confidence intervals) to the potentially most exposed member of the public were calculated for all years using the same model and the same assumptions. Predicted tritium concentrations in air were compared with observed mean annual concentrations at one location from 1973 onwards. Doses predicted from annual emissions were compared with those reported in the past by LLNL. The highest annual mean dose predicted from routine emissions was 34 {micro}Sv (3.4 mrem) in 1957; its upper confidence limit, based on very conservative assumptions about the speciation of the release, was 370 {micro}Sv (37 mrem). The upper confidence limits for most annual doses were well below the current regulatory limit of 100 {micro}Sv (10 mrem) for dose to the public from release to the atmosphere; the few doses that exceeded this were well below the regulatory limits of the time. Lacking the hourly meteorological data needed to calculate doses from historical accidental releases, ingestion/inhalation dose ratios were derived from a time-dependent accident consequence model that accounts for the complex behavior of tritium in the environment. Ratios were modified to account for only those foods growing at the time of the releases. The highest dose from an accidental release was calculated for a release of about 1,500 Ci HTO that occurred in October 1954. The likely dose for this release was probably less than 360 {micro}Sv (36 mrem), but, because of many unknowns (e.g., release-specific meteorological and accidental conditions) and conservative assumptions, the uncertainty was very high. As a result, the upper confidence limit on the predictions, considered a dose that could not have been exceeded, was estimated to be 2 mSv (200 mrem). The next highest dose, from the 1970 accidental release of about 290,000 Ci (10,700 TBq) HT when wind speed and wind direction were known, was one-third as great. Doses from LLNL accidental releases were well below regulatory reporting limits. All doses, from both routine and accidental releases, were far below the level (3.6 mSv [360 mrem] per year) at which adverse health effects have been documented in the literature.

  17. The Structure of the First Coordination Shell in Water

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

    mainly by weak hydrogen bonds. The oxygen atoms are red and the hydrogen atoms grey in the water (H2O) molecules. download hi-res version of image Water is the key...

  18. Hydrogen permeability and Integrity of hydrogen transfer pipelines |

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

    Department of Energy permeability and Integrity of hydrogen transfer pipelines Hydrogen permeability and Integrity of hydrogen transfer pipelines Presentation by 03-Babu for the DOE Hydrogen Pipeline R&D Project Review Meeting held January 5th and 6th, 2005 at Oak Ridge National Laboratory in Oak Ridge, Tennessee. PDF icon 03_babu_transfer.pdf More Documents & Publications Hydrogen Permeability and Integrity of Hydrogen Delivery Pipelines Proceedings of the 2005 Hydrogen Pipeline

  19. Ultrafine hydrogen storage powders

    DOE Patents [OSTI]

    Anderson, Iver E. (Ames, IA); Ellis, Timothy W. (Doylestown, PA); Pecharsky, Vitalij K. (Ames, IA); Ting, Jason (Ames, IA); Terpstra, Robert (Ames, IA); Bowman, Robert C. (La Mesa, CA); Witham, Charles K. (Pasadena, CA); Fultz, Brent T. (Pasadena, CA); Bugga, Ratnakumar V. (Arcadia, CA)

    2000-06-13

    A method of making hydrogen storage powder resistant to fracture in service involves forming a melt having the appropriate composition for the hydrogen storage material, such, for example, LaNi.sub.5 and other AB.sub.5 type materials and AB.sub.5+x materials, where x is from about -2.5 to about +2.5, including x=0, and the melt is gas atomized under conditions of melt temperature and atomizing gas pressure to form generally spherical powder particles. The hydrogen storage powder exhibits improved chemcial homogeneity as a result of rapid solidfication from the melt and small particle size that is more resistant to microcracking during hydrogen absorption/desorption cycling. A hydrogen storage component, such as an electrode for a battery or electrochemical fuel cell, made from the gas atomized hydrogen storage material is resistant to hydrogen degradation upon hydrogen absorption/desorption that occurs for example, during charging/discharging of a battery. Such hydrogen storage components can be made by consolidating and optionally sintering the gas atomized hydrogen storage powder or alternately by shaping the gas atomized powder and a suitable binder to a desired configuration in a mold or die.

  20. Sysco Deploys Hydrogen Powered Pallet Trucks | Department of Energy

    Energy Savers [EERE]

    Sysco Deploys Hydrogen Powered Pallet Trucks Sysco Deploys Hydrogen Powered Pallet Trucks July 12, 2010 - 2:50pm Addthis Food service distribution company Sysco celebrated the grand opening of its highly efficient distribution center in June in Houston. As part of Sysco's efforts to reduce its carbon footprint, the company deployed almost 100 pallet trucks powered by fuel cells that create only water and heat as by-products. The hydrogen fuel cell project's cost was partially covered by funding

  1. Assessing Steel Pipeline and Weld Susceptibility to Hydrogen...

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

    Documents & Publications Hydrogen permeability and Integrity of hydrogen transfer pipelines Hydrogen Permeability and Integrity of Hydrogen Delivery Pipelines Hydrogen...

  2. Materials for the scavanging of hydrogen at high temperatures

    DOE Patents [OSTI]

    Shepodd, Timothy J. (Livermore, CA); Phillip, Bradley L. (Shaker Heights, OH)

    1997-01-01

    A hydrogen getter composition comprising a double or triple bonded hydrocarbon with a high melting point useful for removing hydrogen gas, to partial pressures below 0.01 torr, from enclosed spaces and particularly from vessels used for transporting or containing fluids at elevated temperatures. The hydrogen getter compositions disclosed herein and their reaction products will neither melt nor char at temperatures in excess of 100.degree. C. They possess significant advantages over conventional hydrogen getters, namely low risk of fire or explosion, no requirement for high temperature activation or operation, the ability to absorb hydrogen even in the presence of contaminants such as water, water vapor, common atmospheric gases and oil mists and are designed to be disposed within the confines of the apparatus. These getter materials can be mixed with binders, such as fluropolymers, which permit the getter material to be fabricated into useful shapes and/or impart desirable properties such as water repellency or impermeability to various gases.

  3. Materials for the scavanging of hydrogen at high temperatures

    DOE Patents [OSTI]

    Shepodd, Timothy J. (330 Thrasher Ave., Livermore, Alameda County, CA 94550); Phillip, Bradley L. (20976 Fairmount Blvd., Shaker Heights, Cuyahoga County, OH 44120)

    1997-01-01

    A hydrogen getter composition comprising a double or triple bonded hydrocarbon with a high melting point useful for removing hydrogen gas, to partial pressures below 0.01 torr, from enclosed spaces and particularly from vessels used for transporting or containing fluids at elevated temperatures. The hydrogen getter compostions disclosed herein and their reaction products will neither melt nor char at temperatures in excess of 100C. They possess significant advantages over conventional hydrogen getters, namely low risk of fire or explosion, no requirement for high temperature activation or operation, the ability to absorb hydrogen even in the presence of contaminants such as water, water vapor, common atmospheric gases and oil mists and are designed to be disposed within the confines of the apparatus. These getter materials can be mixed with binders, such as fluropolymers, which permit the getter material to be fabricated into useful shapes and/or impart desirable properties such as water repellency or impermeability to various gases.

  4. Analysis of hydrogen isotope mixtures

    DOE Patents [OSTI]

    Villa-Aleman, Eliel (Aiken, SC)

    1994-01-01

    An apparatus and method for determining the concentrations of hydrogen isotopes in a sample. Hydrogen in the sample is separated from other elements using a filter selectively permeable to hydrogen. Then the hydrogen is condensed onto a cold finger or cryopump. The cold finger is rotated as pulsed laser energy vaporizes a portion of the condensed hydrogen, forming a packet of molecular hydrogen. The desorbed hydrogen is ionized and admitted into a mass spectrometer for analysis.

  5. Electrolysis of Water

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

    Electrolysis of Water Grades: 5-8 Topic: Hydrogen and Fuel Cells, Solar Owner: Florida Solar Energy Center This educational material is brought to you by the U.S. Department of...

  6. Dispersion of Hydrogen Clouds

    SciTech Connect (OSTI)

    Michael R. Swain; Eric S. Grilliot; Matthew N. Swain

    2000-06-30

    The following is the presentation of a simplification of the Hydrogen Risk Assessment Method previously developed at the University of Miami. It has been found that for simple enclosures, hydrogen leaks can be simulated with helium leaks to predict the concentrations of hydrogen gas produced. The highest concentrations of hydrogen occur near the ceiling after the initial transients disappear. For the geometries tested, hydrogen concentrations equal helium concentrations for the conditions of greatest concern (near the ceiling after transients disappear). The data supporting this conclusion is presented along with a comparison of hydrogen, LPG, and gasoline leakage from a vehicle parked in a single car garage. A short video was made from the vehicle fuel leakage data.

  7. Large-scale spatial variability of riverbed temperature gradients in Snake River fall Chinook salmon spawning areas

    SciTech Connect (OSTI)

    Hanrahan, Timothy P.

    2007-02-01

    In the Snake River basin of the Pacific northwestern United States, hydroelectric dam operations are often based on the predicted emergence timing of salmon fry from the riverbed. The spatial variability and complexity of surface water and riverbed temperature gradients results in emergence timing predictions that are likely to have large errors. The objectives of this study were to quantify the thermal heterogeneity between the river and riverbed in fall Chinook salmon spawning areas and to determine the effects of thermal heterogeneity on fall Chinook salmon emergence timing. This study quantified river and riverbed temperatures at 15 fall Chinook salmon spawning sites distributed in two reaches throughout 160 km of the Snake River in Hells Canyon, Idaho, USA, during three different water years. Temperatures were measured during the fall Chinook salmon incubation period with self-contained data loggers placed in the river and at three different depths below the riverbed surface. At all sites temperature increased with depth into the riverbed, including significant differences (p<0.05) in mean water temperature of up to 3.8C between the river and the riverbed among all the sites. During each of the three water years studied, river and riverbed temperatures varied significantly among all the study sites, among the study sites within each reach, and between sites located in the two reaches. Considerable variability in riverbed temperatures among the sites resulted in fall Chinook salmon emergence timing estimates that varied by as much as 55 days, depending on the source of temperature data used for the estimate. Monitoring of riverbed temperature gradients at a range of spatial scales throughout the Snake River would provide better information for managing hydroelectric dam operations, and would aid in the design and interpretation of future empirical research into the ecological significance of physical riverine processes.

  8. The Hydriding Kinetics of Organic Hydrogen Getters

    SciTech Connect (OSTI)

    Powell, G. L.

    2002-02-11

    The aging of hermetically sealed systems is often accompanied by the gradual production of hydrogen gas that is a result of the decay of environmental gases and the degradation of organic materials. In particular, the oxygen, water, hydrogen ''equilibrium'' is affected by the removal of oxygen due the oxidation of metals and organic materials. This shift of the above ''equilibrium'' towards the formation of hydrogen gas, particularly in crevices, may eventually reach an explosive level of hydrogen gas or degrade metals by hydriding them. The latter process is generally delayed until the oxidizing species are significantly reduced. Organic hydrogen getters introduced by Allied Signal Aerospace Company, Kansas City Division have proven to be a very effective means of preventing hydrogen gas accumulation in sealed containers. These getters are relatively unaffected by air and environmental gases. They can be packaged in a variety of ways to fit particular needs such as porous pellets, fine or coarse [gravel] powder, or loaded into silicone rubber. The hydrogen gettering reactions are extremely irreversible since the hydrogen gas is converted into an organic hydrocarbon. These getters are based on the palladium-catalyzed hydrogenation of triple bonds to double and then single bonds in aromatic aryl compounds. DEB (1,4 bis (phenyl ethynyl) benzene) typically mixed with 25% by weight carbon with palladium (1% by weight of carbon) is one of the newest and best of these organic hydrogen getters. The reaction mechanisms are complex involving solid state reaction with a heterogeneous catalyst leading to the many intermediates, including mixed alkyl and aryl hydrocarbons with the possibilities of many isomers. The reaction kinetics mechanisms are also strongly influenced by the form in which they are packaged. For example, the hydriding rates for pellets and gravel have a strong dependence on reaction extent (i.e., DEB reduction) and a kinetic order in pressure of 0.76. Silicone rubber based DEB getters hydride at a much lower rate, have little dependence on reaction extent, have a higher kinetic order in pressure (0.87), and have a lower activation energy. The kinetics of the reaction as a function of hydrogen pressure, stoichiometry, and temperature for hydrogen and deuterium near ambient temperature (0 to 75 C) for pressures near or below 100 Pa over a wide range (in some cases, the complete) hydrogenation range are presented along with multi-dimensional rate models.

  9. Hawaii Renewable Hydrogen Program

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

    Renewable Hydrogen Program State & Regional Initiatives Webinar 14 October 2009 Mitch Ewan Hydrogen Systems Program Manager Hawaii Natural Energy Institute Chenoa Farnsworth Partner Kolohala Holdings, LLP Overview * Hawaii's Energy Situation * Mitch Ewan * Hawaii Power Park Project * Mitch Ewan * The Renewables-to-Hydrogen Fund * Chenoa Farnsworth Hawaii - Most Petroleum Dependent State Petroleum dependence for electricity - top six states Highest Electricity Prices in U.S. Hawaii and US

  10. National hydrogen energy roadmap

    SciTech Connect (OSTI)

    None, None

    2002-11-01

    This report was unveiled by Energy Secretary Spencer Abraham in November 2002 and provides a blueprint for the coordinated, long-term, public and private efforts required for hydrogen energy development. Based on the results of the government-industry National Hydrogen Energy Roadmap Workshop, held in Washington, DC on April 2-3, 2002, it displays the development of a roadmap for America's clean energy future and outlines the key barriers and needs to achieve the hydrogen vision goals defined in

  11. Hydrogen powered bus

    ScienceCinema (OSTI)

    None

    2013-11-22

    Take a ride on a new type of bus, fueled by hydrogen. These hydrogen taxis are part of a Department of Energy-funded deployment of hydrogen powered vehicles and fueling infrastructure at nine federal facilities across the country to demonstrate this market-ready advanced technology. Produced and leased by Ford Motor Company , they consist of one 12- passenger bus and one nine-passenger bus. More information at: http://go.usa.gov/Tgr

  12. Hydrogen Contamination Detector Workshop

    Broader source: Energy.gov [DOE]

    Workshop report, agenda, and presentations from the Hydrogen Contamination Detector Workshop hosted by SAE International on June 12, 2014, in Troy, Michigan. Sponsored by the U.S. Department of Energy (DOE) Fuel Cell Technologies Office, the workshop was held to gather individual input from key stakeholders about suitable technologies and research and development (R&D) gaps and needs for hydrogen contamination detectors at hydrogen refueling stations.

  13. Method for the continuous production of hydrogen

    DOE Patents [OSTI]

    Getty, John Paul (Knoxville, TN); Orr, Mark T. (Kingsport, TN); Woodward, Jonathan (Kingston, TN)

    2002-01-01

    The present invention is a method for the continuous production of hydrogen. The present method comprises reacting a metal catalyst with a degassed aqueous organic acid solution within a reaction vessel under anaerobic conditions at a constant temperature of .ltoreq.80.degree. C. and at a pH ranging from about 4 to about 9. The reaction forms a metal oxide when the metal catalyst reacts with the water component of the organic acid solution while generating hydrogen, then the organic acid solution reduces the metal oxide thereby regenerating the metal catalyst and producing water, thus permitting the oxidation and reduction to reoccur in a continual reaction cycle. The present method also allows the continuous production of hydrogen to be sustained by feeding the reaction with a continuous supply of degassed aqueous organic acid solution.

  14. Hydrogen ion microlithography

    DOE Patents [OSTI]

    Tsuo, Y.S.; Deb, S.K.

    1990-10-02

    Disclosed is a hydrogen ion microlithography process for use in microelectronic fabrication and semiconductor device processing. The process comprises the steps of providing a single layer of either an amorphous silicon or hydrogenated amorphous silicon material. A pattern is recorded in a selected layer of amorphous silicon or hydrogenated amorphous silicon materials by preferentially implanting hydrogen ions therein so as to permit the selected layer to serve as a mask-resist wafer suitable for subsequent development and device fabrication. The layer is developed to provide a surface pattern therein adaptable for subsequent use in microelectronic fabrication and semiconductor device processing. 6 figs.

  15. Thin film hydrogen sensor

    DOE Patents [OSTI]

    Lauf, Robert J. (Oak Ridge, TN); Hoffheins, Barbara S. (Knoxville, TN); Fleming, Pamela H. (Oak Ridge, TN)

    1994-01-01

    A hydrogen sensor element comprises an essentially inert, electrically-insulating substrate having a thin-film metallization deposited thereon which forms at least two resistors on the substrate. The metallization comprises a layer of Pd or a Pd alloy for sensing hydrogen and an underlying intermediate metal layer for providing enhanced adhesion of the metallization to the substrate. An essentially inert, electrically insulating, hydrogen impermeable passivation layer covers at least one of the resistors, and at least one of the resistors is left uncovered. The difference in electrical resistances of the covered resistor and the uncovered resistor is related to hydrogen concentration in a gas to which the sensor element is exposed.

  16. Hydrogen Fuel Cells

    Fuel Cell Technologies Publication and Product Library (EERE)

    The fuel cell — an energy conversion device that can efficiently capture and use the power of hydrogen — is the key to making it happen.

  17. Hydrogen ion microlithography

    DOE Patents [OSTI]

    Tsuo, Y. Simon (Lakewood, CO); Deb, Satyen K. (Boulder, CO)

    1990-01-01

    Disclosed is a hydrogen ion microlithography process for use in microelectronic fabrication and semiconductor device processing. The process comprises the steps of providing a single layer of either an amorphous silicon or hydrogenated amorphous silicon material. A pattern is recorded in a selected layer of amorphous silicon or hydrogenated amorphous silicon materials by preferentially implanting hydrogen ions therein so as to permit the selected layer to serve as a mask-resist wafer suitable for subsequent development and device fabrication. The layer is developed to provide a surface pattern therein adaptable for subsequent use in microelectronic fabrication and semiconductor device processing.

  18. Hydrogen Industrial Trucks

    Office of Energy Efficiency and Renewable Energy (EERE)

    Slides from the U.S. Department of Energy Hydrogen Component and System Qualification Workshop held November 4, 2010 in Livermore, CA.

  19. HYDROGEN TO THE HIGHWAYS

    Broader source: Energy.gov [DOE]

    2009 DOE Hydrogen Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting, May 18-22, 2009 -- Washington D.C.

  20. Hydrogen Generator Appliance

    Broader source: Energy.gov [DOE]

    Presentation by Gus Block, Nuvera Fuel Cells, at the Natural Gas and Hydrogen Infrastructure Opportunities Workshop held October 18-19, 2011, in Lemont, Illinois.

  1. Hydrogen Delivery and Fueling

    SciTech Connect (OSTI)

    2015-09-09

    This MP3 provides an overview of how hydrogen is delivered from the point of production to where it is used.

  2. Hydrogen purification system

    DOE Patents [OSTI]

    Golben, Peter Mark

    2010-06-15

    The present invention provides a system to purify hydrogen involving the use of a hydride compressor and catalytic converters combined with a process controller.

  3. Hydrogen Safety Knowledge Tools

    Broader source: Energy.gov [DOE]

    2009 DOE Hydrogen Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting, May 18-22, 2009 -- Washington D.C.

  4. Renewable Hydrogen (Presentation)

    SciTech Connect (OSTI)

    Remick, R. J.

    2009-11-16

    Presentation about the United State's dependence on oil, how energy solutions are challenging, and why hydrogen should be considered as a long-term alternative for transportation fuel.

  5. President's Hydrogen Fuel Initiative

    Broader source: Energy.gov [DOE]

    Hydrogen Infrastructure and Fuel Cell Technologies put on an Accelerated Schedule. President Bush commits a total $1.7 billion over first 5 years

  6. Hydrogen permeation resistant barrier

    DOE Patents [OSTI]

    McGuire, J.C.; Brehm, W.F.

    1980-02-08

    A hydrogen permeation resistant barrier is formed by diffusing aluminum into an iron or nickel alloy and forming an intermetallic aluminide layer.

  7. California Hydrogen Infrastructure Project

    Broader source: Energy.gov [DOE]

    2009 DOE Hydrogen Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting, May 18-22, 2009 -- Washington D.C.

  8. The Falling Price of Utility-Scale Solar Photovoltaic (PV) Projects...

    Office of Environmental Management (EM)

    The Falling Price of Utility-Scale Solar Photovoltaic (PV) Projects The Falling Price of Utility-Scale Solar Photovoltaic (PV) Projects Data courtesy of National Renewable Energy...

  9. The Falling Price of Utility-Scale Solar Photovoltaic (PV) Projects...

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

    The Falling Price of Utility-Scale Solar Photovoltaic (PV) Projects The Falling Price of Utility-Scale Solar Photovoltaic (PV) Projects Data courtesy of National Renewable Energy ...

  10. California Hydrogen Infrastructure Project | Open Energy Information

    Open Energy Info (EERE)

    Hydrogen Infrastructure Project Jump to: navigation, search Name: California Hydrogen Infrastructure Project Place: California Sector: Hydro, Hydrogen Product: String...

  11. Massachusetts Hydrogen Coalition | Open Energy Information

    Open Energy Info (EERE)

    Hydrogen Coalition Jump to: navigation, search Logo: Massachusetts Hydrogen Coalition Name: Massachusetts Hydrogen Coalition Address: 100 Cummings Center Place: Beverly,...

  12. Electrochemical hydrogen Storage Systems

    SciTech Connect (OSTI)

    Dr. Digby Macdonald

    2010-08-09

    As the global need for energy increases, scientists and engineers have found a possible solution by using hydrogen to power our world. Although hydrogen can be combusted as a fuel, it is considered an energy carrier for use in fuel cells wherein it is consumed (oxidized) without the production of greenhouse gases and produces electrical energy with high efficiency. Chemical storage of hydrogen involves release of hydrogen in a controlled manner from materials in which the hydrogen is covalently bound. Sodium borohydride and aminoborane are two materials given consideration as chemical hydrogen storage materials by the US Department of Energy. A very significant barrier to adoption of these materials as hydrogen carriers is their regeneration from 'spent fuel,' i.e., the material remaining after discharge of hydrogen. The U.S. Department of Energy (DOE) formed a Center of Excellence for Chemical Hydrogen Storage, and this work stems from that project. The DOE has identified boron hydrides as being the main compounds of interest as hydrogen storage materials. The various boron hydrides are then oxidized to release their hydrogen, thereby forming a 'spent fuel' in the form of a lower boron hydride or even a boron oxide. The ultimate goal of this project is to take the oxidized boron hydrides as the spent fuel and hydrogenate them back to their original form so they can be used again as a fuel. Thus this research is essentially a boron hydride recycling project. In this report, research directed at regeneration of sodium borohydride and aminoborane is described. For sodium borohydride, electrochemical reduction of boric acid and sodium metaborate (representing spent fuel) in alkaline, aqueous solution has been investigated. Similarly to literature reports (primarily patents), a variety of cathode materials were tried in these experiments. Additionally, approaches directed at overcoming electrostatic repulsion of borate anion from the cathode, not described in the previous literature for electrochemical reduction of spent fuels, have been attempted. A quantitative analytical method for measuring the concentration of sodium borohydride in alkaline aqueous solution has been developed as part of this work and is described herein. Finally, findings from stability tests for sodium borohydride in aqueous solutions of several different compositions are reported. For aminoborane, other research institutes have developed regeneration schemes involving tributyltin hydride. In this report, electrochemical reduction experiments attempting to regenerate tributyltin hydride from tributyltin chloride (a representative by-product of the regeneration scheme) are described. These experiments were performed in the non-aqueous solvents acetonitrile and 1,2-dimethoxyethane. A non-aqueous reference electrode for electrolysis experiments in acetonitrile was developed and is described. One class of boron hydrides, called polyhedral boranes, became of interest to the DOE due to their ability to contain a sufficient amount of hydrogen to meet program goals and because of their physical and chemical safety attributes. Unfortunately, the research performed here has shown that polyhedral boranes do not react in such a way as to allow enough hydrogen to be released, nor do they appear to undergo hydrogenation from the spent fuel form back to the original hydride. After the polyhedral boranes were investigated, the project goals remained the same but the hydrogen storage material was switched by the DOE to ammonia borane. Ammonia borane was found to undergo an irreversible hydrogen release process, so a direct hydrogenation was not able to occur. To achieve the hydrogenation of the spent ammonia borane fuel, an indirect hydrogenation reaction is possible by using compounds called organotin hydrides. In this process, the organotin hydrides will hydrogenate the spent ammonia borane fuel at the cost of their own oxidation, which forms organotin halides. To enable a closed-loop cycle, our task was then to be able to hydrogenate the organotin halides back to th

  13. Hydrogen storage composition and method

    DOE Patents [OSTI]

    Wicks, G.G.; Heung, L.K.

    1994-01-01

    A hydrogen storage composition based on a metal hydride dispersed in an aerogel prepared by a sol-gel process. The starting material for the aerogel is an organometallic compound, including the alkoxysilanes, organometals of the form M(OR){sub X} where R is an organic ligand of the form C{sub n}H{sub 2n+1}, and organometals of the form MO{sub x}Ry where R is an alkyl group, where M is an oxide-forming metal, n, x and y are integers and y is two less than the valence of M. A sol is prepared by combining the starting material, alcohol, water, and an acid. The sol is conditioned to the proper viscosity and a hydride in the form of a fine powder is added. The mixture is polymerized and dried under supercritical conditions. The final product is a composition having a hydride uniformly dispersed throughout an inert, stable and highly porous matrix. It is capable of absorbing up to 30 motes of hydrogen per kilogram at room temperature and pressure, rapidly and reversibly. Hydrogen absorbed by the composition can be readily be recovered by heat or evacuation.

  14. Hydrogen storage composition and method

    DOE Patents [OSTI]

    Heung, Leung K (Aiken, SC); Wicks, George G. (Aiken, SC)

    2003-01-01

    A hydrogen storage composition based on a metal hydride dispersed in an aerogel prepared by a sol-gel process. The starting material for the aerogel is an organometallic compound, including the alkoxysilanes, organometals of the form M(OR)x and MOxRy, where R is an alkyl group of the form C.sub.n H.sub.2n+1, M is an oxide-forming metal, n, x, and y are integers, and y is two less than the valence of M. A sol is prepared by combining the starting material, alcohol, water, and an acid. The sol is conditioned to the proper viscosity and a hydride in the form of a fine powder is added. The mixture is polymerized and dried under supercritical conditions. The final product is a composition having a hydride uniformly dispersed throughout an inert, stable and highly porous matrix. It is capable of absorbing up to 30 moles of hydrogen per kilogram at room temperature and pressure, rapidly and reversibly. Hydrogen absorbed by the composition can be readily be recovered by heat or evacuation.

  15. Thermoelectrochemical hydrogen production using sodium chloride

    SciTech Connect (OSTI)

    El-Bassuoni, A.M.A.; Sheffield, J.W.; Veziroglu, T.N.

    1981-01-01

    Three closed-cycle processes for the thermoelectrochemical production of hydrogen from water using sodium chloride are under investigation. The maximum required temperature of 700/degree/C can be achieved by solar energy using various concentration techniques. By means of photovoltaic cells or a solar power station, the required electric power can be obtained. 11 refs.

  16. Combination moisture and hydrogen getter

    DOE Patents [OSTI]

    Not Available

    1982-04-29

    A combination moisture and hydrogen getter comprises (a) a moisture getter comprising a readily oxidizable metal; and (b) a hydrogen getter comprising (i) a solid acetylenic compound and (ii) a hydrogenation catalyst. A method of scavenging moisture from a closed container uses the combination moisture and hydrogen getter to irreversibly chemically reduce the moisture and chemically bind the reusltant hydrogen.

  17. Combination moisture and hydrogen getter

    DOE Patents [OSTI]

    Harrah, Larry A. (Albuquerque, NM); Mead, Keith E. (Peralta, NM); Smith, Henry M. (Overland Park, KS)

    1983-01-01

    A combination moisture and hydrogen getter comprises (a) a moisture getter comprising a readily oxidizable metal; and (b) a hydrogen getter comprising (i) a solid acetylenic compound and (ii) a hydrogenation catalyst. A method of scavenging moisture from a closed container uses the combination moisture and hydrogen getter to irreversibly chemically reduce the moisture and chemically bind the resultant hydrogen.

  18. Combination moisture and hydrogen getter

    DOE Patents [OSTI]

    Harrah, L.A.; Mead, K.E.; Smith, H.M.

    1983-09-20

    A combination moisture and hydrogen getter comprises (a) a moisture getter comprising a readily oxidizable metal; and (b) a hydrogen getter comprising (1) a solid acetylenic compound and (2) a hydrogenation catalyst. A method of scavenging moisture from a closed container uses the combination moisture and hydrogen getter to irreversibly chemically reduce the moisture and chemically bind the resultant hydrogen.

  19. Enhancing hydrogen spillover and storage

    DOE Patents [OSTI]

    Yang, Ralph T; Li, Yingwei; Lachawiec, Jr., Anthony J

    2013-02-12

    Methods for enhancing hydrogen spillover and storage are disclosed. One embodiment of the method includes doping a hydrogen receptor with metal particles, and exposing the hydrogen receptor to ultrasonication as doping occurs. Another embodiment of the method includes doping a hydrogen receptor with metal particles, and exposing the doped hydrogen receptor to a plasma treatment.

  20. Enhancing hydrogen spillover and storage

    DOE Patents [OSTI]

    Yang, Ralph T. (Ann Arbor, MI); Li, Yingwel (Ann Arbor, MI); Lachawiec, Jr., Anthony J. (Ann Arbor, MI)

    2011-05-31

    Methods for enhancing hydrogen spillover and storage are disclosed. One embodiment of the method includes doping a hydrogen receptor with metal particles, and exposing the hydrogen receptor to ultrasonification as doping occurs. Another embodiment of the method includes doping a hydrogen receptor with metal particles, and exposing the doped hydrogen receptor to a plasma treatment.

  1. Hydrogen Permeability and Integrity of Hydrogen Delivery Pipelines

    Broader source: Energy.gov [DOE]

    Project Objectives: To gain basic understanding of hydrogen permeation behavior and its impact on hydrogen embrittlement of pipeline steels under high gaseous pressures relevant to hydrogen gas transmission pipeline

  2. Green Hydrogen Company | Open Energy Information

    Open Energy Info (EERE)

    Hydrogen Company Jump to: navigation, search Logo: Green Hydrogen Company Name: Green Hydrogen Company Abbreviation: GH2 Address: Green Hydrogen Company, Head Office, 9...

  3. Safe Hydrogen LLC | Open Energy Information

    Open Energy Info (EERE)

    Hydrogen LLC Jump to: navigation, search Name: Safe Hydrogen LLC Place: Lexington, Massachusetts Sector: Hydro, Hydrogen Product: Focused on hydrogen storage, through a 'slurry' of...

  4. Hydrogen Car Co | Open Energy Information

    Open Energy Info (EERE)

    Car Co Jump to: navigation, search Name: Hydrogen Car Co Place: Los Angeles, California Zip: 90036 Sector: Hydro, Hydrogen Product: The Hydrogen Car Company produces hydrogen...

  5. The Hydrogen Company | Open Energy Information

    Open Energy Info (EERE)

    Company Jump to: navigation, search Name: The Hydrogen Company Abbreviation: HydroGen Address: The Hydrogen Company, HydroGen Engineering and Consulting, Head Office, 9...

  6. Sandia Energy - Maritime Hydrogen Fuel Cell Project

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

    Fuel Cell Project Home Transportation Energy Hydrogen Market Transformation Maritime Hydrogen & SF-BREEZE Maritime Hydrogen Fuel Cell Project Maritime Hydrogen Fuel Cell...

  7. Assessing Summer and Fall Chinook Salmon Restoration in the Upper Clearwater River and Principal Tributaries, 1994 Annual Report.

    SciTech Connect (OSTI)

    Arnsberg, Billy D.; Statler, David P.

    1995-08-01

    This is the first annual report of a five year study to assess summer and fall chinook salmon restoration potential in the upper Clearwater River and principal tributaries, Salmon, Grande Ronde, and Imnaha Rivers. During 1994, the authors focused primarily on assessing water temperatures and spawning habitat in the upper Clearwater River and principal tributaries. Water temperature analysis indicated a colder temperature regime in the upper Clearwater River above the North Fork Clearwater River confluence during the winter as compared to the lower Clearwater. This was due to warm water releases from Dworshak Reservoir on the North Fork moderating temperatures in the lower Clearwater River. Thermal temperature unit analysis and available literature suggest a 75% survival threshold level may be anticipated for chinook salmon egg incubation if spawning would occur by November 1 in the upper Clearwater River. Warm water upwelling in historic summer and fall chinook spawning areas may result in increased incubation survivals and will be tested in the future. The authors observed a total of 37 fall chinook salmon redds in the Clearwater River subbasin. They observed 30 redds in the mainstem Clearwater below the North Fork Clearwater River confluence and seven redds in the North Fork Clearwater River. No redds were observed in the South Fork Clearwater, Middle Fork Clearwater, or Selway Rivers. They observed one fall chinook salmon redd in the Salmon River. They recovered 10 fall chinook salmon carcasses in the Clearwater River to obtain biological measurements and to document hatchery contribution to spawning. Unseasonably high and cold Dworshak Dam releases coinciding with early juvenile fall chinook salmon rearing in the lower Clearwater River may be influencing selective life history traits including growth, smolt development, outmigration timing, behavior, and could be directly affecting survival. During July 1994, discharges from Dworshak Dam increased from a baseline release of 1,300 cfs to a maximum release of 25,530 cfs with an overall temperature depression in the lower Clearwater River exceeding 10 C. With continued Dworshak Dam operations as those documented in 1994, there is potential risk to the continued existence of the endangered fall chinook salmon in the Clearwater River. Additional data and conclusions will be contained in successive years` annual reports.

  8. Hydrogen permeation behavior through F82H at high temperature...

    Office of Scientific and Technical Information (OSTI)

    In this study, hydrogen permeation behavior through F82H was investigated in the temperature range from 500 to 800 C. degrees. In some cases, water vapor was added in a sample gas ...

  9. STATEMENT OF CONSIDERATIONS REQUEST BY HYDROGEN ENERGY OF CALIFORNIA...

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

    power plant with CO 2 capture and sequestration (CCS) that will take blends of coal and petroleum coke, combined with non-potable water, and convert them into hydrogen and CO 2 . ...

  10. Method for the purification of noble gases, nitrogen and hydrogen

    DOE Patents [OSTI]

    Baker, J.D.; Meikrantz, D.H.; Tuggle, D.G.

    1997-09-23

    A method and apparatus are disclosed for the purification and collection of hydrogen isotopes in a flowing inert gaseous mixture containing impurities, wherein metal alloy getters having the capability of sorbing non-hydrogen impurities such as oxygen, carbon dioxide, carbon monoxide, methane, ammonia, nitrogen and water vapor are utilized to purify the gaseous mixture of impurities. After purification hydrogen isotopes may be more efficiently collected. A plurality of parallel process lines utilizing metal getter alloys can be used to provide for the continuous purification and collection of the hydrogen isotopes. 15 figs.

  11. Fuel Cell Electric Vehicle Powered by Renewable Hydrogen

    SciTech Connect (OSTI)

    2011-01-01

    The National Renewable Energy Laboratory (NREL) recently received a Borrego fuel cell electric vehicle (FCEV) on loan from Kia for display at a variety of summer events. The Borrego is fueled using renewable hydrogen that is produced and dispensed at NREL's National Wind Technology Center near Boulder, Colorado. The hydrogen dispensed at the station is produced via renewable electrolysis as part of the wind-to-hydrogen project, which uses wind turbines and photovoltaic arrays to power electrolyzer stacks that split water into hydrogen and oxygen. The FCEV features state-of-the-art technology with zero harmful emissions.

  12. Method for the purification of noble gases, nitrogen and hydrogen

    DOE Patents [OSTI]

    Baker, John D. (Blackfoot, ID); Meikrantz, David H. (Idaho Falls, ID); Tuggle, Dale G. (Los Alamos, NM)

    1997-01-01

    A method and apparatus for the purification and collection of hydrogen isotopes in a flowing inert gaseous mixture containing impurities, wherein metal alloy getters having the capability of sorbing non-hydrogen impurities such as oxygen, carbon dioxide, carbon monoxide, methane, ammonia, nitrogen and water vapor are utilized to purify the gaseous mixture of impurities. After purification hydrogen isotopes may be more efficiently collected. A plurality of parallel process lines utilizing metal getter alloys can be used to provide for the continuous purification and collection of the hydrogen isotopes.

  13. Fuel Cell Electric Vehicle Powered by Renewable Hydrogen

    ScienceCinema (OSTI)

    None

    2013-05-29

    The National Renewable Energy Laboratory (NREL) recently received a Borrego fuel cell electric vehicle (FCEV) on loan from Kia for display at a variety of summer events. The Borrego is fueled using renewable hydrogen that is produced and dispensed at NREL's National Wind Technology Center near Boulder, Colorado. The hydrogen dispensed at the station is produced via renewable electrolysis as part of the wind-to-hydrogen project, which uses wind turbines and photovoltaic arrays to power electrolyzer stacks that split water into hydrogen and oxygen. The FCEV features state-of-the-art technology with zero harmful emissions.

  14. Process for photosynthetically splitting water

    DOE Patents [OSTI]

    Greenbaum, Elias (Oak Ridge, TN)

    1984-01-01

    The invention is an improved process for producing gaseous hydrogen and oxygen from water. The process is conducted in a photolytic reactor which contains a water-suspension of a photoactive material containing a hydrogen-liberating catalyst. The reactor also includes a volume for receiving gaseous hydrogen and oxygen evolved from the liquid phase. To avoid oxygen-inactivation of the catalyst, the reactor is evacuated continuously by an external pump which circulates the evolved gases through means for selectively recovering hydrogen therefrom. The pump also cools the reactor by evaporating water from the liquid phase. Preferably, product recovery is effected by selectively diffusing the hydrogen through a heated semipermeable membrane, while maintaining across the membrane a magnetic field gradient which biases the oxygen away from the heated membrane. This promotes separation, minimizes the back-reaction of hydrogen and oxygen, and protects the membrane.

  15. Two Electron Holes in Hematite Facilitate Water Splitting

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

    A molecular glance at water splitting. Hematite could play an important role in the generation of hydrogen by solar-powered water splitting, resulting in a truly...

  16. Two Electron Holes in Hematite Facilitate Water Splitting

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

    Two Electron Holes in Hematite Facilitate Water Splitting Print Hydrogen is an attractive form of fuel because its only by-product is nonpolluting water vapor. The problem,...

  17. Two Electron Holes in Hematite Facilitate Water Splitting

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

    Two Electron Holes in Hematite Facilitate Water Splitting Two Electron Holes in Hematite Facilitate Water Splitting Print Wednesday, 26 September 2012 00:00 Hydrogen is an...

  18. Membrane for hydrogen recovery from streams containing hydrogen sulfide

    DOE Patents [OSTI]

    Agarwal, Pradeep K.

    2007-01-16

    A membrane for hydrogen recovery from streams containing hydrogen sulfide is provided. The membrane comprises a substrate, a hydrogen permeable first membrane layer deposited on the substrate, and a second membrane layer deposited on the first layer. The second layer contains sulfides of transition metals and positioned on the on a feed side of the hydrogen sulfide stream. The present invention also includes a method for the direct decomposition of hydrogen sulfide to hydrogen and sulfur.

  19. Thick film hydrogen sensor

    DOE Patents [OSTI]

    Hoffheins, B.S.; Lauf, R.J.

    1995-09-19

    A thick film hydrogen sensor element includes an essentially inert, electrically-insulating substrate having deposited thereon a thick film metallization forming at least two resistors. The metallization is a sintered composition of Pd and a sinterable binder such as glass frit. An essentially inert, electrically insulating, hydrogen impermeable passivation layer covers at least one of the resistors. 8 figs.

  20. Thick film hydrogen sensor

    DOE Patents [OSTI]

    Hoffheins, Barbara S. (Knoxville, TN); Lauf, Robert J. (Oak Ridge, TN)

    1995-01-01

    A thick film hydrogen sensor element includes an essentially inert, electrically-insulating substrate having deposited thereon a thick film metallization forming at least two resistors. The metallization is a sintered composition of Pd and a sinterable binder such as glass frit. An essentially inert, electrically insulating, hydrogen impermeable passivation layer covers at least one of the resistors.

  1. Hydrogen Fuel Quality

    SciTech Connect (OSTI)

    Rockward, Tommy

    2012-07-16

    For the past 6 years, open discussions and/or meetings have been held and are still on-going with OEM, Hydrogen Suppliers, other test facilities from the North America Team and International collaborators regarding experimental results, fuel clean-up cost, modeling, and analytical techniques to help determine levels of constituents for the development of an international standard for hydrogen fuel quality (ISO TC197 WG-12). Significant progress has been made. The process for the fuel standard is entering final stages as a result of the technical accomplishments. The objectives are to: (1) Determine the allowable levels of hydrogen fuel contaminants in support of the development of science-based international standards for hydrogen fuel quality (ISO TC197 WG-12); and (2) Validate the ASTM test method for determining low levels of non-hydrogen constituents.

  2. Hydrogen Supply: Cost Estimate for Hydrogen Pathways-Scoping...

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

    Hydrogen Supply: Cost Estimate for Hydrogen Pathways-Scoping Analysis. January 22, 2002-July 22, 2002 A report showing a comparative scooping economic analysis of 19 pathways for ...

  3. Hydrogen Pipeline Working Group Workshop: Code for Hydrogen Pipelines

    Broader source: Energy.gov [DOE]

    Code for Hydrogen Piping and Pipelines. B31 Hydrogen Section Committee to develop a new code for H2 piping and pipelines.

  4. Why Hydrogen? Hydrogen from Diverse Domestic Resources | Department...

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

    Overview of FreedomCAR & Fuels PartnershipDOE Delivery Program President's Hydrogen Fuel Initiative Hydrogen Posture Plan: An Integrated Research, Development and...

  5. Hydrogen Resource Assessment: Hydrogen Potential from Coal, Natural...

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

    60-42773 February 2009 Hydrogen Resource Assessment Hydrogen Potential from Coal, Natural Gas, Nuclear, and Hydro Power Anelia Milbrandt and Margaret Mann National Renewable Energy...

  6. Renewable Resources for Hydrogen (Presentation)

    SciTech Connect (OSTI)

    Jalalzadeh-Azar, A. A.

    2010-05-03

    This presentation provides an overview of renewable resources for hydrogen. It was presented at the National Hydrogen Association Hydrogen Conference & Expo in Long Beach, CA, May 3-6, 2010.

  7. The Rise and Fall of Core-Collapse Supernovae

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

    The Rise and Fall of Core-Collapse Supernovae The Rise and Fall of Core-Collapse Supernovae 2D and 3D Models Shed New Light on What Fuels an Exploding Star July 2, 2015 Contact: Kathy Kincade, kkincade@lbl.gov,+1 510 495 2124 corecollapse3 2D simulations of the evolution of the entropy (upper half) and radial velocity (lower half) of a supernovae explosion at 150, 300 and 600 milliseconds. Red material is moving outward, blue material is moving inward. Simulations run at NERSC (Hopper and

  8. ARM - Field Campaign - Fall 1994 Single Column Model IOP

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

    govCampaignsFall 1994 Single Column Model IOP ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Campaign : Fall 1994 Single Column Model IOP 1994.10.01 - 1994.10.31 Lead Scientist : David Randall Data Availability Data Plots from Colorado State University Data Plots from Livermore National Laboratory Actual data files for a number of past SCM IOPs are available from the ARM Archive. For data sets, see below. Abstract

  9. New Test Facilities Opening this Fall | Department of Energy

    Energy Savers [EERE]

    Test Facilities Opening this Fall New Test Facilities Opening this Fall April 1, 2013 - 12:25pm Addthis This is an excerpt from the First Quarter 2013 edition of the Wind Program R&D Newsletter. South Carolina and Colorado - Two of the world's largest state-of-the-art drivetrain test facilities will soon be open for business-the Clemson University Wind Turbine Drivetrain Testing Facility at the Restoration Institute in South Carolina and the 5-MW dynamometer at the U.S. Department of

  10. UNION CARBIDE MZALS DIVISION tiiAGARA FALLS, NEW YDRK

    Office of Legacy Management (LM)

    PRELIF",INARY SURVEY 0' ELECTRDMET iORPDF.&TiCIN UNION CARBIDE MZALS DIVISION tiiAGARA FALLS, NEW YDRK Work performed by the Health and Safety Research Division Dak Ridge National Laboratory Oak Ridge, Tennessee 37830 OAK RIDGE NATIONAL LABORATORY operated by UNION CARBIDE CORPORATION for the DEPARTMENT OF ENERGY as part of the Fornierly Utilized Sites-- Remedial Action Program ,ELECTRD?'ISi 60RPOR:TION UNiON CARBIDE METALS DIVlSIOti NiASARA FALLS, NEA YORK At the requests o f the

  11. Hydrogen Resources | Department of Energy

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

    Resources Hydrogen Resources Hydrogen can be produced from diverse, domestic resources. Currently, most hydrogen is produced from fossil fuels, specifically natural gas. Electricity-from the grid or from renewable sources such as wind, solar, geothermal, or biomass-is also currently used to produce hydrogen. In the longer term, solar energy and biomass can be used more directly to generate hydrogen. Natural Gas and Other Fossil Fuels Fossil fuels can be reformed to release the hydrogen from

  12. Hydrogen Storage | Department of Energy

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

    Storage Hydrogen Storage The Fuel Cell Technologies Office (FCTO) is developing onboard automotive hydrogen storage systems that allow for a driving range of more than 300 miles while meeting cost, safety, and performance requirements. Why Study Hydrogen Storage Hydrogen storage is a key enabling technology for the advancement of hydrogen and fuel cell technologies in applications including stationary power, portable power, and transportation. Hydrogen has the highest energy per mass of any

  13. Methods and systems for the production of hydrogen

    DOE Patents [OSTI]

    Oh, Chang H. (Idaho Falls, ID); Kim, Eung S. (Ammon, ID); Sherman, Steven R. (Augusta, GA)

    2012-03-13

    Methods and systems are disclosed for the production of hydrogen and the use of high-temperature heat sources in energy conversion. In one embodiment, a primary loop may include a nuclear reactor utilizing a molten salt or helium as a coolant. The nuclear reactor may provide heat energy to a power generation loop for production of electrical energy. For example, a supercritical carbon dioxide fluid may be heated by the nuclear reactor via the molten salt and then expanded in a turbine to drive a generator. An intermediate heat exchange loop may also be thermally coupled with the primary loop and provide heat energy to one or more hydrogen production facilities. A portion of the hydrogen produced by the hydrogen production facility may be diverted to a combustor to elevate the temperature of water being split into hydrogen and oxygen by the hydrogen production facility.

  14. Hydrogen separation membranes annual report for FY 2010.

    SciTech Connect (OSTI)

    Balachandran, U.; Dorris, S. E; Emerson, J. E.; Lee, T. H.; Lu, Y.; Park, C. Y.; Picciolo, J. J.

    2011-03-14

    The objective of this work is to develop dense ceramic membranes for separating hydrogen from other gaseous components in a nongalvanic mode, i.e., without using an external power supply or electrical circuitry. The goal of this project is to develop dense hydrogen transport membranes (HTMs) that nongalvanically (i.e., without electrodes or external power supply) separate hydrogen from gas mixtures at commercially significant fluxes under industrially relevant operating conditions. These membranes will be used to separate hydrogen from gas mixtures such as the product streams from coal gasification, methane partial oxidation, and water-gas shift reactions. Potential ancillary uses of HTMs include dehydrogenation and olefin production, as well as hydrogen recovery in petroleum refineries and ammonia synthesis plants, the largest current users of deliberately produced hydrogen. This report describes the results from the development and testing of HTM materials during FY 2010.

  15. Hydrogen separation membranes annual report for FY 2009.

    SciTech Connect (OSTI)

    Balachandran, U.; Dorris, S. E.; Lu, Y.; Emerson, J. E.; Park, C. Y.; Lee, T. H.; Picciolo, J. J.; Energy Systems

    2010-04-16

    The objective of this work is to develop dense ceramic membranes for separating hydrogen from other gaseous components in a nongalvanic mode, i.e., without using an external power supply or electrical circuitry. The goal of this project is to develop dense hydrogen transport membranes (HTMs) that nongalvanically (i.e., without electrodes or external power supply) separate hydrogen from gas mixtures at commercially significant fluxes under industrially relevant operating conditions. HTMs will be used to separate hydrogen from gas mixtures such as the product streams from coal gasification, methane partial oxidation, and water-gas shift reactions. Potential ancillary uses of HTMs include dehydrogenation and olefin production, as well as hydrogen recovery in petroleum refineries and ammonia synthesis plants, the largest current users of deliberately produced hydrogen. This report describes the results from the development and testing of HTM materials during FY 2009.

  16. Hydrogen separation membranes annual report for FY 2008.

    SciTech Connect (OSTI)

    Balachandran, U.; Dorris, S. E.; Emerson, J. E.; Lee, T. H.; Lu, Y.; Park, C. Y.; Picciolo, J. J.; Energy Systems

    2009-03-17

    The objective of this work is to develop dense ceramic membranes for separating hydrogen from other gaseous components in a nongalvanic mode, i.e., without using an external power supply or electrical circuitry. The goal of this project is to develop dense hydrogen transport membranes (HTMs) that nongalvanically (i.e., without electrodes or external power supply) separate hydrogen from gas mixtures at commercially significant fluxes under industrially relevant operating conditions. HTMs will be used to separate hydrogen from gas mixtures such as the product streams from coal gasification, methane partial oxidation, and water-gas shift reactions. Potential ancillary uses of HTMs include dehydrogenation and olefin production, as well as hydrogen recovery in petroleum refineries and ammonia synthesis plants, the largest current users of deliberately produced hydrogen. This report describes progress that was made during Fy 2008 on the development of HTM materials.

  17. Hydrogen Data Book from the Hydrogen Analysis Resource Center

    DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

    The Hydrogen Data Book contains a wide range of factual information on hydrogen and fuel cells (e.g., hydrogen properties, hydrogen production and delivery data, and information on fuel cells and fuel cell vehicles), and it also provides other data that might be useful in analyses of hydrogen infrastructure in the United States (e.g., demographic data and data on energy supply and/or infrastructure). Its made available from the Hydrogen Analysis Resource Center along with a wealth of related information. The related information includes guidelines for DOE Hydrogen Program Analysis, various calculator tools, a hydrogen glossary, related websites, and analysis tools relevant to hydrogen and fuel cells. [From http://hydrogen.pnl.gov/cocoon/morf/hydrogen

  18. Hydrogen Data Book from the Hydrogen Analysis Resource Center

    DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

    The Hydrogen Data Book contains a wide range of factual information on hydrogen and fuel cells (e.g., hydrogen properties, hydrogen production and delivery data, and information on fuel cells and fuel cell vehicles), and it also provides other data that might be useful in analyses of hydrogen infrastructure in the United States (e.g., demographic data and data on energy supply and/or infrastructure). ItÆs made available from the Hydrogen Analysis Resource Center along with a wealth of related information. The related information includes guidelines for DOE Hydrogen Program Analysis, various calculator tools, a hydrogen glossary, related websites, and analysis tools relevant to hydrogen and fuel cells. [From http://hydrogen.pnl.gov/cocoon/morf/hydrogen

  19. Hydrogen Energy | Open Energy Information

    Open Energy Info (EERE)

    Energy Jump to: navigation, search Name: Hydrogen Energy Place: Surrey, England, United Kingdom Zip: KT13 0NY Sector: Carbon, Hydro, Hydrogen Product: Surrey-based BP subsidiary...

  20. Hydrogen Ventures | Open Energy Information

    Open Energy Info (EERE)

    Ventures Jump to: navigation, search Logo: Hydrogen Ventures Name: Hydrogen Ventures Address: 1219 N. Studabaker Road Place: Long Beach, California Zip: 90811 Region: Southern CA...

  1. Hydrogen Production Technical Team Roadmap

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

    ... hydrogen control to assure public safety and address ... pathway," International Journal of Hydrogen Energy 34 ... Texas: Center for Energy Economics, 2004), http:...

  2. Porous polymeric materials for hydrogen storage

    DOE Patents [OSTI]

    Yu, Luping; Liu, Di-Jia; Yuan, Shengwen; Yang, Junbing

    2011-12-13

    Porous polymers, tribenzohexazatriphenylene, poly-9,9'-spirobifluorene, poly-tetraphenyl methane and their derivatives for storage of H.sub.2 prepared through a chemical synthesis method. The porous polymers have high specific surface area and narrow pore size distribution. Hydrogen uptake measurements conducted for these polymers determined a higher hydrogen storage capacity at the ambient temperature over that of the benchmark materials. The method of preparing such polymers, includes oxidatively activating solids by CO.sub.2/steam oxidation and supercritical water treatment.

  3. Extremely weak hydrogen flames

    SciTech Connect (OSTI)

    Lecoustre, V.R.; Sunderland, P.B. [Department of Fire Protection Engineering, University of Maryland, College Park, MD 20742 (United States); Chao, B.H. [Department of Mechanical Engineering, University of Hawaii, Honolulu, HI 96822 (United States); Axelbaum, R.L. [Department of Energy, Environmental and Chemical Engineering, Washington University in St. Louis, St. Louis, MO 63130 (United States)

    2010-11-15

    Hydrogen jet diffusion flames were observed near their quenching limits. These involved downward laminar flow of hydrogen from a stainless steel hypodermic tube with an inside diameter of 0.15 mm. Near their quenching limits these flames had hydrogen flow rates of 3.9 and 2.1 {mu}g/s in air and oxygen, respectively. Assuming complete combustion, the associated heat release rates are 0.46 and 0.25 W. To the authors' knowledge, these are the weakest self-sustaining steady flames ever observed. (author)

  4. National Small Business Federal Contracting Summit-DC Fall Conference

    Broader source: Energy.gov [DOE]

    The 2014 National Small Business Federal Contracting Summit - DC Fall Conference is presented jointly by the National Association of Small Business Contractors (the Supplier Council of The American Small Business Chamber of Commerce) and the U.S. Women's Chamber of Commerce in Washington DC.

  5. 2015 NHA Hydraulic Power Committee (HPC) Fall Retreat

    Broader source: Energy.gov [DOE]

    Join us for the 2015 Hydraulic Power Committee Fall retreat October 4–7, 2015 in Birmingham, Alabama. The event is open to all NHA member companies and invited guests, including owners and...

  6. ARM - Field Campaign - ARM-UAV Fall 2002

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

    We would love to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Campaign : ARM-UAV Fall 2002 2002.11.03 - 2002.11.23 Lead Scientist : Tim Tooman For data...

  7. Falling microbead counter-flow process for separating gas mixtures

    DOE Patents [OSTI]

    Hornbostel, Marc D.; Krishnan, Gopala N.; Sanjurjo, Angel

    2015-07-07

    A method and reactor for removing a component from a gas stream is provided. In one embodiment, the method includes providing the gas stream containing the component that is to be removed and adsorbing the component out of the gas stream as the gas stream rises via microbeads of a sorbent falling down an adsorber section of a reactor.

  8. Falling microbead counter-flow process for separating gas mixtures

    DOE Patents [OSTI]

    Hornbostel, Marc D.; Krishnan, Gopala N.; Sanjurjo, Angel

    2015-10-27

    A method and reactor for removing a component from a gas stream is provided. In one embodiment, the method includes providing the gas stream containing the component that is to be removed and adsorbing the component out of the gas stream as the gas stream rises via microbeads of a sorbent falling down an adsorber section of a reactor.

  9. EIS-0397: Lyle Falls Fish Passage Project, WA

    Broader source: Energy.gov [DOE]

    This EIS analyzes BPA's decision to modify funding to the existing Lyle Falls Fishway on the lower Klickitat River in Klickitat County, WA. The proposed project would help BPA meet its off-site mitigation responsibilities for anadromous fish affected by the development of the Federal Columbia River Power System and increase overall fish production in the Columbia Basin.

  10. Tritiated Water Challenge in Fukushima Daiichi

    Office of Environmental Management (EM)

    Tritiated water Challenge in Fukushima Daiichi Steve Xiao, Ph.D. Hydrogen Processing ... Anita Poore SRNL-MS-2014-00047 Fukushima Accident * Unit 1 (460 Mwe) - completely ...

  11. Water Emissions from Fuel Cell Vehicles

    Broader source: Energy.gov [DOE]

    Hydrogen fuel cell vehicles (FCVs) emit approximately the same amount of water per mile as vehicles using gasoline-powered internal combustion engines (ICEs).

  12. Advancing the Hydrogen Safety Knowledge Base

    SciTech Connect (OSTI)

    Weiner, Steven C.

    2014-12-01

    A White Paper of the International Energy Agency Hydrogen Implementing Agreement Task 31 - Hydrogen Safety

  13. Characterizations of Hydrogen Energy Technologies

    SciTech Connect (OSTI)

    Energetics Inc

    2003-04-01

    In 1996, Dr. Ed Skolnik of Energetics, Incorporated, began a series of visits to the locations of various projects that were part of the DOE Hydrogen Program. The site visits/evaluations were initiated to help the DOE Program Management, which had limited time and limited travel budgets, to get a detailed snapshot of each project. The evaluations were soon found to have other uses as well: they provided reviewers on the annual Hydrogen Program Peer Review Team with an in-depth look at a project--something that is lacking in a short presentation--and also provided a means for hydrogen stakeholders to learn about the R&D that the Hydrogen Program is sponsoring. The visits were conducted under several different contract mechanisms, at project locations specified by DOE Headquarters Program Management, Golden Field Office Contract Managers, or Energetics, Inc., or through discussion by some or all of the above. The methodology for these site-visit-evaluations changed slightly over the years, but was fundamentally as follows: Contact the Principal Investigator (PI) and arrange a time for the visit; Conduct a literature review. This would include a review of the last two or three years of Annual Operating Plan submittals, monthly reports, the paper submitted with the last two or three Annual Peer Review, published reviewers' consensus comments from the past few years, publications in journals, and journal publications on the same or similar topics by other researchers; Send the PI a list of questions/topics about a week ahead of time, which we would discuss during the visit. The types of questions vary depending on the project, but include some detailed technical questions that delve into some fundamental scientific and engineering issues, and also include some economic and goal-oriented topics; Conduct the site-visit itself including--Presentations by the PI and/or his staff. This would be formal in some cases, informal in others, and merely a ''sit around the table'' discussion in others; The format was left to the discretion of the PI; A tour of the facility featuring, whenever possible, a demonstration of the process in operation; Detailed discussions of the questions sent to the PI and other topics; and Writing a report on the visit. This compilation presents the reports for all the site-visits held between February 1996 and July 2001, each written shortly after the visit. While nothing has been changed in the actual content of any of the reports, reformatting for uniformity did occur. In each report, where the questions and their respective answers are discussed, the questions are shown in bold. In several cases, the PI chose to answer these questions in writing. When this occurs, the PI's answers are produced ''verbatim, in quotes, using a different font.'' Discussion of the questions, tour/demonstration, and anything else raised during the visit is presented in normal type. Comments that represent the opinion of Dr. Skolnik, including those added during the writing of the report are shown in italics. The reports compiled here, as stated, covers a period through July 2001. Since then, site-visits to various project locations and the accompanying evaluations have continued. Thus, a second compilation volume should follow in the fall of 2003. Following the compilation of reports, is an afterward that briefly discusses what has happened to some of the projects or project personnel since that particular report was written.

  14. Niagara Falls Storage Site, environmental monitoring report for 1979 and 1980

    SciTech Connect (OSTI)

    Weidner, R.B.; Boback, M.W.

    1981-10-05

    The Niagara Falls Storage Site is a 190-acre facility located in Niagara County, New York. It is owned by the US Department of Energy (DOE) and is used for the storage of radioactive residues. This site is managed by NLO, Inc., contract operator of the DOE Feed Materials Production Center near Cincinnati, Ohio. During 1979 and 1980, water and air samples were collected at and near the storage site to provide information about radionuclides in the offsite environment. Results show that uranium and radium concentrations in ground and surface water were within DOE Guide values for uncontrolled areas. Radon-222 in air at the site west boundary exceeded the DOE Guide but offsite monitoring in the general area showed radon-222 concentrations well within the Guide.

  15. Hydrogenation with monolith reactor under conditions of immiscible liquid phases

    DOE Patents [OSTI]

    Nordquist, Andrew Francis (Whitehall, PA); Wilhelm, Frederick Carl (Zionsville, PA); Waller, Francis Joseph (Allentown, PA); Machado, Reinaldo Mario (Allentown, PA)

    2002-01-01

    The present invention relates to an improved for the hydrogenation of an immiscible mixture of an organic reactant in water. The immiscible mixture can result from the generation of water by the hydrogenation reaction itself or, by the addition of, water to the reactant prior to contact with the catalyst. The improvement resides in effecting the hydrogenation reaction in a monolith catalytic reactor from 100 to 800 cpi, at a superficial velocity of from 0.1 to 2 m/second in the absence of a cosolvent for the immiscible mixture. In a preferred embodiment, the hydrogenation is carried out using a monolith support which has a polymer network/carbon coating onto which a transition metal is deposited.

  16. The Hydrogen Connection

    SciTech Connect (OSTI)

    Barilo, Nick F.

    2014-05-01

    As the world seeks to identify alternative energy sources, hydrogen and fuel cell technologies will offer a broad range of benefits for the environment, the economy and energy security.

  17. Biological Hydrogen Production Workshop

    Broader source: Energy.gov [DOE]

    The U.S. Department of Energy's (DOE's) National Renewable Energy Laboratory (NREL) held a Biological Hydrogen Production Workshop on September 24–25, 2013, in Golden, Colorado. The workshop...

  18. Florida Hydrogen Initiative

    SciTech Connect (OSTI)

    Block, David L

    2013-06-30

    The Florida Hydrogen Initiative (FHI) was a research, development and demonstration hydrogen and fuel cell program. The FHI program objectives were to develop Florida?s hydrogen and fuel cell infrastructure and to assist DOE in its hydrogen and fuel cell activities The FHI program funded 12 RD&D projects as follows: Hydrogen Refueling Infrastructure and Rental Car Strategies -- L. Lines, Rollins College This project analyzes strategies for Florida's early stage adaptation of hydrogen-powered public transportation. In particular, the report investigates urban and statewide network of refueling stations and the feasibility of establishing a hydrogen rental-car fleet based in Orlando. Methanol Fuel Cell Vehicle Charging Station at Florida Atlantic University ? M. Fuchs, EnerFuel, Inc. The project objectives were to design, and demonstrate a 10 kWnet proton exchange membrane fuel cell stationary power plant operating on methanol, to achieve an electrical energy efficiency of 32% and to demonstrate transient response time of less than 3 milliseconds. Assessment of Public Understanding of the Hydrogen Economy Through Science Center Exhibits, J. Newman, Orlando Science Center The project objective was to design and build an interactive Science Center exhibit called: ?H2Now: the Great Hydrogen Xchange?. On-site Reformation of Diesel Fuel for Hydrogen Fueling Station Applications ? A. Raissi, Florida Solar Energy Center This project developed an on-demand forecourt hydrogen production technology by catalytically converting high-sulfur hydrocarbon fuels to an essentially sulfur-free gas. The removal of sulfur from reformate is critical since most catalysts used for the steam reformation have limited sulfur tolerance. Chemochromic Hydrogen Leak Detectors for Safety Monitoring ? N. Mohajeri and N. Muradov, Florida Solar Energy Center This project developed and demonstrated a cost-effective and highly selective chemochromic (visual) hydrogen leak detector for safety monitoring at any facility engaged in transport, handling and use of hydrogen. Development of High Efficiency Low Cost Electrocatalysts for Hydrogen Production and PEM Fuel Cell Applications ? M. Rodgers, Florida Solar Energy Center The objective of this project was to decrease platinum usage in fuel cells by conducting experiments to improve catalyst activity while lowering platinum loading through pulse electrodeposition. Optimum values of several variables during electrodeposition were selected to achieve the highest electrode performance, which was related to catalyst morphology. Understanding Mechanical and Chemical Durability of Fuel Cell Membrane Electrode Assemblies ? D. Slattery, Florida Solar Energy Center The objective of this project was to increase the knowledge base of the degradation mechanisms for membranes used in proton exchange membrane fuel cells. The results show the addition of ceria (cerium oxide) has given durability improvements by reducing fluoride emissions by an order of magnitude during an accelerated durability test. Production of Low-Cost Hydrogen from Biowaste (HyBrTec?) ? R. Parker, SRT Group, Inc., Miami, FL This project developed a hydrogen bromide (HyBrTec?) process which produces hydrogen bromide from wet-cellulosic waste and co-produces carbon dioxide. Eelectrolysis dissociates hydrogen bromide producing recyclable bromine and hydrogen. A demonstration reactor and electrolysis vessel was designed, built and operated. Development of a Low-Cost and High-Efficiency 500 W Portable PEMFC System ? J. Zheng, Florida State University, H. Chen, Bing Energy, Inc. The objectives of this project were to develop a new catalyst structures comprised of highly conductive buckypaper and Pt catalyst nanoparticles coated on its surface and to demonstrate fuel cell efficiency improvement and durability and cell cost reductions in the buckypaper based electrodes. Development of an Interdisciplinary Hydrogen and Fuel Cell Technology Academic Program ? J. Politano, Florida Institute of Technology, Melbourne, FL This project developed a hydrogen and fuel cell technology academic program at Florida Institute of Technology in Melbourne, Florida. Design and Development of an Advanced Hydrogen Storage System using Novel Materials ? E. Stefanakos, University of South Florida The goal of this project was to design and develop novel conducting polymeric nanomaterials for on-board hydrogen storage. The project approach was to examine synthesis of polyaniline solid state hydrogen storage materials. Advanced HiFoil ? Bipolar Plates ? J. Braun, M. Fuchs, EnerFuel, Inc. The goal of this project was to provide a durable, low cost bipolar plate for high temperature proton exchange membrane fuel cells. The project results produced a durable, low cost bipolar plate with very high in-plane thermal conductivity.

  19. Thin film hydrogen sensor

    DOE Patents [OSTI]

    Lauf, R.J.; Hoffheins, B.S.; Fleming, P.H.

    1994-11-22

    A hydrogen sensor element comprises an essentially inert, electrically-insulating substrate having a thin-film metallization deposited thereon which forms at least two resistors on the substrate. The metallization comprises a layer of Pd or a Pd alloy for sensing hydrogen and an underlying intermediate metal layer for providing enhanced adhesion of the metallization to the substrate. An essentially inert, electrically insulating, hydrogen impermeable passivation layer covers at least one of the resistors, and at least one of the resistors is left uncovered. The difference in electrical resistances of the covered resistor and the uncovered resistor is related to hydrogen concentration in a gas to which the sensor element is exposed. 6 figs.

  20. National Hydrogen Energy Roadmap

    Fuel Cell Technologies Publication and Product Library (EERE)

    This report was unveiled by Energy Secretary Spencer Abraham in November 2002 and provides a blueprint for the coordinated, long-term, public and private efforts required for hydrogen energy developme

  1. Hydrogen storage compositions

    DOE Patents [OSTI]

    Li, Wen; Vajo, John J.; Cumberland, Robert W.; Liu, Ping

    2011-04-19

    Compositions for hydrogen storage and methods of making such compositions employ an alloy that exhibits reversible formation/deformation of BH.sub.4.sup.- anions. The composition includes a ternary alloy including magnesium, boron and a metal and a metal hydride. The ternary alloy and the metal hydride are present in an amount sufficient to render the composition capable of hydrogen storage. The molar ratio of the metal to magnesium and boron in the alloy is such that the alloy exhibits reversible formation/deformation of BH.sub.4.sup.- anions. The hydrogen storage composition is prepared by combining magnesium, boron and a metal to prepare a ternary alloy and combining the ternary alloy with a metal hydride to form the hydrogen storage composition.

  2. Hydrogen Fuel Cell Demonstration ...

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

    Brothers, Ltd., at their facility in the Port of Honolulu. The pilot hydrogen fuel cell unit will be used in place of a diesel generator currently used to provide power for...

  3. Hydrogen Production: Coal Gasification

    Broader source: Energy.gov [DOE]

    The U.S. Department of Energy Office of Fossil Energy supports activities to advance coal-to-hydrogen technologies, specifically through the process of coal gasification with carbon capture, utilization, and storage.

  4. Thin-thick hydrogen target for nuclear physics

    SciTech Connect (OSTI)

    Gheller, J.-M.; Juster, F.-P.; Authelet, G.; Relland, J.

    2014-01-29

    In spectroscopic studies of unstable nuclei, hydrogen targets are of key importance. The CHyMENE Project aims to provide to the nuclear physics community a thin and pure solid windowless hydrogen or deuterium target. CHyMENE project must respond to this request for the production of solid Hydrogen. The solid hydrogen target is produced in a continuous flow (1 cm/s) by an extrusion technique (developed with the PELIN laboratory) in a vacuum chamber. The shape of the target is determined by the design of the nozzle at the extrusion process. For the purpose, the choice is a rectangular shape with a width of 10 mm and a thickness in the range of 30-50 microns necessary for the physics objectives. The cryostat is equipped with a GM Cryocooler with sufficient power for the solidification of the hydrogen in the lower portion of the extruder. In the higher part of the cryostat, the hydrogen gas is first liquefied and partially solidified. It is then compressed at 100 bars in the cooled extruder before expulsion of the film through the nozzle at the center of the reaction vacuum chamber. After the previous step, the solid hydrogen ribbon falls by gravity into a dedicated chamber where it sublimes and the gas is pumped and evacuated in a exhaust line. This paper deals with the design of the cryostat with its equipment, with the sizing of the thermal bridge (Aluminum and copper), with the results regarding the contact resistance as well as with the vacuum computations of the reaction and recovery hydrogen gas chambers.

  5. Systematic Discrimination of Advanced Hydrogen Production Technologies

    SciTech Connect (OSTI)

    Charles V. Park; Michael W. Patterson

    2010-07-01

    The U.S. Department of Energy, in concert with industry, is developing a high-temperature gas-cooled reactor at the Idaho National Laboratory (INL) to demonstrate high temperature heat applications to produce hydrogen and electricity or to support other industrial applications. A key part of this program is the production of hydrogen from water that would significantly reduce carbon emissions compared to current production using natural gas. In 2009 the INL led the methodical evaluation of promising advanced hydrogen production technologies in order to focus future resources on the most viable processes. This paper describes how the evaluation process was systematically planned and executed. As a result, High-Temperature Steam Electrolysis was selected as the most viable near-term technology to deploy as a part of the Next Generation Nuclear Plant Project.

  6. Hydrogen recovery process

    DOE Patents [OSTI]

    Baker, Richard W. (Palo Alto, CA); Lokhandwala, Kaaeid A. (Union City, CA); He, Zhenjie (Fremont, CA); Pinnau, Ingo (Palo Alto, CA)

    2000-01-01

    A treatment process for a hydrogen-containing off-gas stream from a refinery, petrochemical plant or the like. The process includes three separation steps: condensation, membrane separation and hydrocarbon fraction separation. The membrane separation step is characterized in that it is carried out under conditions at which the membrane exhibits a selectivity in favor of methane over hydrogen of at least about 2.5.

  7. Hydrogen Compatibility of Materials

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

    Compatibility of Materials August 13, 2013 DOE EERE Fuel Cell Technologies Office Webinar Chris San Marchi Sandia National Laboratories Sandia National Laboratories is a multi-program laboratory managed and operated by Sandia Corporation, a wholly owned subsidiary of Lockheed Martin Corporation, for the U.S. Department of Energy's National Nuclear Security Administration under contract DE-AC04-94AL85000 SAND2013-6278P 2 Webinar Objectives * Provide context for hydrogen embrittlement and hydrogen

  8. Hydrogen Equipment Certification Guide

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

    Equipment Certification Guide U.S. Department of Energy Fuel Cell Technologies Office December 10 th , 2015 Presenter: Nick Barilo Pacific Northwest National Laboratory (PNNL) Hydrogen Safety Program Manager DOE Host: Will James - DOE Fuel Cell Technologies Office 2 | Fuel Cell Technologies Office eere.energy.gov Question and Answer * Please type your questions into the question box 2 / / Hydrogen Equipment Certification Guide: Introduction and Kickoff for the Stakeholder Review Nick Barilo PNNL

  9. Method of producing hydrogen

    DOE Patents [OSTI]

    Bingham, Dennis N.; Klingler, Kerry M.; Wilding, Bruce M.; Zollinger, William T.

    2006-12-26

    A method of producing hydrogen is disclosed and which includes providing a first composition; providing a second composition; reacting the first and second compositions together to produce a chemical hydride; providing a liquid and reacting the chemical hydride with the liquid in a manner to produce a high pressure hydrogen gas and a byproduct which includes the first composition; and reusing the first composition formed as a byproduct in a subsequent chemical reaction to form additional chemical hydride.

  10. Safetygram Gaseous Hydrogen

    Broader source: Energy.gov [DOE]

    Hydrogen is a colorless, odorless, tasteless, highly flammable gas. It is also the lightestweight gas. Since hydrogen is noncorrosive, special materials of construction are not usually required. The American Society of Mechanical Engineers (ASME) code and the American National Standards Institute (ANSI) Pressure Piping code specify vessel and piping design requirements for the pressures and temperatures involved. Applicable Dangerous Goods regulations specify requirements for vessels used for transportation.

  11. Cryogenic hydrogen release research.

    SciTech Connect (OSTI)

    LaFleur, Angela Christine

    2015-12-01

    The objective of this project was to devolop a plan for modifying the Turbulent Combustion Laboratory (TCL) with the necessary infrastructure to produce a cold (near liquid temperature) hydrogen jet. The necessary infrastructure has been specified and laboratory modifications are currently underway. Once complete, experiments from this platform will be used to develop and validate models that inform codes and standards which specify protection criteria for unintended releases from liquid hydrogen storage, transport, and delivery infrastructure.

  12. NREL: Hydrogen and Fuel Cells Research - Hydrogen Production and Delivery

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

    Hydrogen Production and Delivery Learn how NREL is developing and advancing a number of pathways to renewable hydrogen production. Text Version Most of the hydrogen in the United States is produced by steam reforming of natural gas. For the near term, this production method will continue to dominate. Researchers at NREL are developing advanced processes to produce hydrogen economically from sustainable resources. NREL's hydrogen production and delivery R&D efforts, which are led by Huyen

  13. Hydrogen Material Compatibility for Hydrogen ICE | Department of Energy

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

    Material Compatibility for Hydrogen ICE Hydrogen Material Compatibility for Hydrogen ICE 2009 DOE Hydrogen Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting, May 18-22, 2009 -- Washington D.C. PDF icon pm_04_smith.pdf More Documents & Publications Hydrogen Materials Compatibility for the H-ICE Engine Friction Reduction Through Surface Finish and Coatings Low-Friction Hard Coatings

  14. DOE Hydrogen and Fuel Cell Overview: 2011 Hydrogen Infrastructure Market

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

    Readiness Workshop | Department of Energy and Fuel Cell Overview: 2011 Hydrogen Infrastructure Market Readiness Workshop DOE Hydrogen and Fuel Cell Overview: 2011 Hydrogen Infrastructure Market Readiness Workshop Presentation by Sunita Satyapal, U.S. Department of Energy Fuel Cell Technologies Program Manager, at the Hydrogen Infrastructure Market Readiness Workshop, February 16, 2011, in Washington, D.C. PDF icon DOE Hydrogen and Fuel Cell Overview More Documents & Publications DOE

  15. Examining hydrogen transitions.

    SciTech Connect (OSTI)

    Plotkin, S. E.; Energy Systems

    2007-03-01

    This report describes the results of an effort to identify key analytic issues associated with modeling a transition to hydrogen as a fuel for light duty vehicles, and using insights gained from this effort to suggest ways to improve ongoing modeling efforts. The study reported on here examined multiple hydrogen scenarios reported in the literature, identified modeling issues associated with those scenario analyses, and examined three DOE-sponsored hydrogen transition models in the context of those modeling issues. The three hydrogen transition models are HyTrans (contractor: Oak Ridge National Laboratory), MARKAL/DOE* (Brookhaven National Laboratory), and NEMS-H2 (OnLocation, Inc). The goals of these models are (1) to help DOE improve its R&D effort by identifying key technology and other roadblocks to a transition and testing its technical program goals to determine whether they are likely to lead to the market success of hydrogen technologies, (2) to evaluate alternative policies to promote a transition, and (3) to estimate the costs and benefits of alternative pathways to hydrogen development.

  16. Hydrogen Distribution and Delivery Infrastructure

    SciTech Connect (OSTI)

    2008-11-01

    This 2-page fact sheet provides a brief introduction to hydrogen delivery technologies. Intended for a non-technical audience, it explains how hydrogen is transported and delivered today, the challenges to delivering hydrogen for use as a widespread energy carrier, and the research goals for hydrogen delivery.

  17. Hydrogen Delivery Technical Team Roadmap

    SciTech Connect (OSTI)

    2013-06-01

    The mission of the Hydrogen Delivery Technical Team (HDTT) is to enable the development of hydrogen delivery technologies, which will allow for fuel cell competitiveness with gasoline and hybrid technologies by achieving an as-produced, delivered, and dispensed hydrogen cost of $2-$4 per gallon of gasoline equivalent of hydrogen.

  18. Nanostructured materials for hydrogen storage

    DOE Patents [OSTI]

    Williamson, Andrew J. (Pleasanton, CA); Reboredo, Fernando A. (Pleasanton, CA)

    2007-12-04

    A system for hydrogen storage comprising a porous nano-structured material with hydrogen absorbed on the surfaces of the porous nano-structured material. The system of hydrogen storage comprises absorbing hydrogen on the surfaces of a porous nano-structured semiconductor material.

  19. Novel, Ceramic Membrane System For Hydrogen Separation

    SciTech Connect (OSTI)

    Elangovan, S.

    2012-12-31

    Separation of hydrogen from coal gas represents one of the most promising ways to produce alternative sources of fuel. Ceramatec, teamed with CoorsTek and Sandia National Laboratories has developed materials technology for a pressure driven, high temperature proton-electron mixed conducting membrane system to remove hydrogen from the syngas. This system separates high purity hydrogen and isolates high pressure CO{sub 2} as the retentate, which is amenable to low cost capture and transport to storage sites. The team demonstrated a highly efficient, pressure-driven hydrogen separation membrane to generate high purity hydrogen from syngas using a novel ceramic-ceramic composite membrane. Recognizing the benefits and limitations of present membrane systems, the all-ceramic system has been developed to address the key technical challenges related to materials performance under actual operating conditions, while retaining the advantages of thermal and process compatibility offered by the ceramic membranes. The feasibility of the concept has already been demonstrated at Ceramatec. This project developed advanced materials composition for potential integration with water gas shift rectors to maximize the hydrogenproduction.

  20. Hydrogen storage and generation system

    DOE Patents [OSTI]

    Dentinger, Paul M. (Sunol, CA); Crowell, Jeffrey A. W. (Castro Valley, CA)

    2010-08-24

    A system for storing and generating hydrogen generally and, in particular, a system for storing and generating hydrogen for use in an H.sub.2/O.sub.2 fuel cell. The hydrogen storage system uses the beta particles from a beta particle emitting material to degrade an organic polymer material to release substantially pure hydrogen. In a preferred embodiment of the invention, beta particles from .sup.63Ni are used to release hydrogen from linear polyethylene.

  1. Hydrogen Delivery | Department of Energy

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

    Delivery Hydrogen Delivery A viable hydrogen infrastructure requires that hydrogen be able to be delivered from where it's produced to the point of end-use, such as a dispenser at a refueling station or stationary power site. Infrastructure includes the pipelines, trucks, storage facilities, compressors, and dispensers involved in the process of delivering fuel. Delivery technology for hydrogen infrastructure is currently available commercially, and several U.S. companies deliver bulk hydrogen

  2. SunLine Test Drives Hydrogen Bus: Hydrogen Fuel Cell & Infrastructure...

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

    Test Drives Hydrogen Bus: Hydrogen Fuel Cell & Infrastructure Technologies Program, Fuel Cell Bus Demonstration Projects Fact Sheet. SunLine Test Drives Hydrogen Bus: Hydrogen Fuel ...

  3. Development of Efficient Flowsheet and Transient Modeling for Nuclear Heat Coupled Sulfur Iodine Cyclefor Hydrogen Production

    SciTech Connect (OSTI)

    Shripad T. Revankar; Nicholas R. Brown; Cheikhou Kane; Seungmin Oh

    2010-05-01

    The realization of the hydrogen as an energy carrier for future power sources relies on a practical method of producing hydrogen in large scale with no emission of green house gases. Hydrogen is an energy carrier which can be produced by a thermochemical water splitting process. The Sulfur-Iodine (SI) process is an example of a water splitting method using iodine and sulfur as recycling agents.

  4. Hydrogen production at run-of-river hydro plants

    SciTech Connect (OSTI)

    Tarnay, D.S.

    1983-12-01

    Production of energy from non-renewable petroleum, natural gas and coal is declining due to depletion and high prices. Presently, the research concentrates on reduction of consumption and more efficient use of traditional fuels, and on development of renewable sources of energy and new energy technologies. Most of the new energy sources, however, are not available in a convenient form for consumer. The new energy must be renewable, economically feasible and transportable. Not all the available renewable energy sources have these qualities. Many scientists and engineers believe that hydrogen meets these criteria best. Hydrogen can be produced from various renewable sources such as solar, wind, geothermal, tidal and glacier energies, ocean thermal energy conversion (OTEC), and obviously from - waterpower. The production of hydrogen at run-of-river hydropower plants via electrolysis could be the front-runner in developing new hydrogen energy technologies, and open the way to a new hydrogen era, similarly as the polyphase system and the a-c current generator of N. Tesla used at the Niagara Falls Hydropower Plant, opened the door to a new electrical age in 1895.

  5. Method and apparatus for reading free falling dosimeter punchcodes

    DOE Patents [OSTI]

    Langsted, James M.

    1992-12-22

    A punchcode reader is provided for reading data encoded in a punchcode hole array on a dosimeter. The dosimeter falls through a passage in the reader containing photosensor detectors disposed along the passage which provide output signals to a microprocessor. The signals are processed to determine the orientation of the dosimeter in the reader, the location and state of punchcode holes in a two row array thereby decoding the encoded data. Multiple rate of fall calculations are made, and if appropriate matching of the punchcode array is not obtained in three tries, an error signal is outputted to the operator. The punchcode reader also provides for storage of data from multiple dosimeters passed through the reader, and for the output of decoded data to an external display or a computer for further processing.

  6. Method and apparatus for reading free falling dosimeter punchcodes

    DOE Patents [OSTI]

    Langsted, J.M.

    1992-12-22

    A punchcode reader is provided for reading data encoded in a punchcode hole array on a dosimeter. The dosimeter falls through a passage in the reader containing photosensor detectors disposed along the passage which provide output signals to a microprocessor. The signals are processed to determine the orientation of the dosimeter in the reader, the location and state of punchcode holes in a two row array thereby decoding the encoded data. Multiple rate of fall calculations are made, and if appropriate matching of the punchcode array is not obtained in three tries, an error signal is output to the operator. The punchcode reader also provides for storage of data from multiple dosimeters passed through the reader, and for the output of decoded data to an external display or a computer for further processing. 8 figs.

  7. Niagara Falls Storage Site, Lewiston, New York: geologic report

    SciTech Connect (OSTI)

    Not Available

    1984-06-01

    This report is one of a series of engineering and environmental reports planned for the US Department of Energy's properties at Niagara Falls, New York. It describes the essential geologic features of the Niagara Falls Storage Site. It is not intended to be a definitive statement of the engineering methods and designs required to obtain desired performance features for any permanent waste disposal at the site. Results are presented of a geological investigation that consisted of two phases. Phase 1 occurred during July 1982 and included geologic mapping, geophysical surveys, and a limited drilling program in the vicinity of the R-10 Dike, planned for interim storage of radioactive materials. Phase 2, initiated in December 1982, included excavation of test pits, geophysical surveys, drilling, observation well installation, and field permeability testing in the South Dike Area, the Northern Disposal Area, and the K-65 Tower Area.

  8. Spawning Habitat Studies of Hanford Reach Fall Chinook Salmon (Oncorhynchus tshawytscha), Final Report.

    SciTech Connect (OSTI)

    Geist, David R.; Arntzen, Evan V.; Chien, Yi-Ju

    2009-03-02

    The Pacific Northwest National Laboratory conducted this study for the Bonneville Power Administration (BPA) with funding provided through the Northwest Power and Conservation Council(a) and the BPA Fish and Wildlife Program. The study was conducted in the Hanford Reach of the Columbia River. The goal of study was to determine the physical habitat factors necessary to define the redd capacity of fall Chinook salmon that spawn in large mainstem rivers like the Hanford Reach and Snake River. The study was originally commissioned in FY 1994 and then recommissioned in FY 2000 through the Fish and Wildlife Program rolling review of the Columbia River Basin projects. The work described in this report covers the period from 1994 through 2004; however, the majority of the information comes from the last four years of the study (2000 through 2004). Results from the work conducted from 1994 to 2000 were covered in an earlier report. More than any other stock of Pacific salmon, fall Chinook salmon (Oncorhynchus tshawytscha) have suffered severe impacts from the hydroelectric development in the Columbia River Basin. Fall Chinook salmon rely heavily on mainstem habitats for all phases of their life cycle, and mainstem hydroelectric dams have inundated or blocked areas that were historically used for spawning and rearing. The natural flow pattern that existed in the historic period has been altered by the dams, which in turn have affected the physical and biological template upon which fall Chinook salmon depend upon for successful reproduction. Operation of the dams to produce power to meet short-term needs in electricity (termed power peaking) produces unnatural fluctuations in flow over a 24-hour cycle. These flow fluctuations alter the physical habitat and disrupt the cues that salmon use to select spawning sites, as well as strand fish in near-shore habitat that becomes dewatered. The quality of spawning gravels has been affected by dam construction, flood protection, and agricultural and industrial development. In some cases, the riverbed is armored such that it is more difficult for spawners to move, while in other cases the intrusion of fine sediment into spawning gravels has reduced water flow to sensitive eggs and young fry. Recovery of fall Chinook salmon populations may involve habitat restoration through such actions as dam removal and reservoir drawdown. In addition, habitat protection will be accomplished through set-asides of existing high-quality habitat. A key component to evaluating these actions is quantifying the salmon spawning habitat potential of a given river reach so that realistic recovery goals for salmon abundance can be developed. Quantifying salmon spawning habitat potential requires an understanding of the spawning behavior of Chinook salmon, as well as an understanding of the physical habitat where these fish spawn. Increasingly, fish biologists are recognizing that assessing the physical habitat of riverine systems where salmon spawn goes beyond measuring microhabitat like water depth, velocity, and substrate size. Geomorphic features of the river measured over a range of spatial scales set up the physical template upon which the microhabitat develops, and successful assessments of spawning habitat potential incorporate these geomorphic features. We had three primary objectives for this study. The first objective was to determine the relationship between physical habitats at different spatial scales and fall Chinook salmon spawning locations. The second objective was to estimate the fall Chinook salmon redd capacity for the Reach. The third objective was to suggest a protocol for determining preferable spawning reaches of fall Chinook salmon. To ensure that we collected physical data within habitat that was representative of the full range of potential spawning habitat, the study area was stratified based on geomorphic features of the river using a two-dimensional river channel index that classified the river cross section into one of four shapes based on channel symmetry, depth, and width. We found that this river channel classification system was a good predictor at the scale of a river reach ({approx}1 km) of where fall Chinook salmon would spawn. Using this two-dimensional river channel index, we selected study areas that were representative of the geomorphic classes. A total of nine study sites distributed throughout the middle 27 km of the Reach (study area) were investigated. Four of the study sites were located between river kilometer 575 and 580 in a section of the river where fall Chinook salmon have not spawned since aerial surveys were initiated in the 1940s; four sites were located in the spawning reach (river kilometer [rkm] 590 to 603); and one site was located upstream of the spawning reach (rkm 605).

  9. Photoelectrochemical Hydrogen Production

    SciTech Connect (OSTI)

    Hu, Jian

    2013-12-23

    The objectives of this project, covering two phases and an additional extension phase, were the development of thin film-based hybrid photovoltaic (PV)/photoelectrochemical (PEC) devices for solar-powered water splitting. The hybrid device, comprising a low-cost photoactive material integrated with amorphous silicon (a-Si:H or a-Si in short)-based solar cells as a driver, should be able to produce hydrogen with a 5% solar-to-hydrogen conversion efficiency (STH) and be durable for at least 500 hours. Three thin film material classes were studied and developed under this program: silicon-based compounds, copper chalcopyrite-based compounds, and metal oxides. With the silicon-based compounds, more specifically the amorphous silicon carbide (a-SiC), we achieved a STH efficiency of 3.7% when the photoelectrode was coupled to an a-Si tandem solar cell, and a STH efficiency of 6.1% when using a crystalline Si PV driver. The hybrid PV/a-SiC device tested under a current bias of -3~4 mA/cm{sup 2}, exhibited a durability of up to ~800 hours in 0.25 M H{sub 2}SO{sub 4} electrolyte. Other than the PV driver, the most critical element affecting the photocurrent (and hence the STH efficiency) of the hybrid PV/a-SiC device was the surface energetics at the a-SiC/electrolyte interface. Without surface modification, the photocurrent of the hybrid PEC device was ~1 mA/cm{sup 2} or lower due to a surface barrier that limits the extraction of photogenerated carriers. We conducted an extensive search for suitable surface modification techniques/materials, of which the deposition of low work function metal nanoparticles was the most successful. Metal nanoparticles of ruthenium (Ru), tungsten (W) or titanium (Ti) led to an anodic shift in the onset potential. We have also been able to develop hybrid devices of various configurations in a monolithic fashion and optimized the current matching via altering the energy bandgap and thickness of each constituent cell. As a result, the short-circuit photocurrent density of the hybrid device (measured in a 2-electrode configuration) increased significantly without assistance of any external bias, i.e. from ?1 mA/cm{sup 2} to ~5 mA/cm{sup 2}. With the copper chalcopyrite compounds, we have achieved a STH efficiency of 3.7% in a coplanar configuration with 3 a-Si solar cells and one CuGaSe{sub 2} photocathode. This material class exhibited good durability at a photocurrent density level of -4 mA/cm{sup 2} (5% STH equivalent) at a fixed potential (-0.45 VRHE). A poor band-edge alignment with the hydrogen evolution reaction (HER) potential was identified as the main limitation for high STH efficiency. Three new pathways have been identified to solve this issue. First, PV driver with bandgap lower than that of amorphous silicon were investigated. Crystalline silicon was identified as possible bottom cell. Mechanical stacks made with one Si solar cell and one CuGaSe{sub 2} photocathode were built. A 400 mV anodic shift was observed with the Si cell, leading to photocurrent density of -5 mA/cm{sup 2} at 0VRHE (compared to 0 mA/cm{sup 2} at the same potential without PV driver). We also investigated the use of p-n junctions to shift CuGaSe{sub 2} flatband potential anodically. Reactively sputtered zinc oxy-sulfide thin films was evaluated as n-type buffer and deposited on CuGaSe{sub 2}. Ruthenium nanoparticles were then added as HER catalyst. A 250 mV anodic shift was observed with the p-n junction, leading to photocurrent density at 0VRHE of -1.5 mA/cm{sup 2}. Combining this device with a Si solar cell in a mechanical stack configuration shifted the onset potential further (+400 mV anodically), leading to photocurrent density of -7 mA/cm{sup 2} at 0VRHE. Finally, we developed wide bandgap copper chalcopyrite thin film materials. We demonstrated that Se can be substituted with S using a simple annealing step. Photocurrent densities in the 5-6 mA/cm{sub 2} range were obtained with red 2.0eV CuInGaS{sub 2} photocathodes. With the metal oxide compounds, we have demonstrated that a WO{sub 3}-based hybrid photoelectrode was feasible. Specifically, we showed that WO{sub 3} paired with an a-Si tandem solar cell can generate short circuit photocurrent density of 2.5 mA/cm{sup 2}, equivalent to STH efficiency of 3.1%. Long-term durability tests demonstrated WO{sub 3} ability to split water over extended periods, for up to 600 hours at current density levels of 2.0-2.5 mA/cm{sup 2}. Efforts have been done to decrease WO{sub 3} bandgap using foreign elements incorporation. We did not manage to reduce the bandgap of WO{sub 3} with this method. However, more promising results have been achieved with bilayered systems, where only the top part of WO{sub 3} films was modified. Also, we have demonstrated that alloying WO{sub 3} with CuO can form 2.2eV bandgap CuWO{sub 4}. Incorporating conductive carbon nanotubes in CuWO{sub 4} reduced its intrinsic bulk resistance. Saturation photocurrent densities in the 0.4-0.5 mA/cm{sub 2} range were achieved. Recently, in collaboration with University of Texas at Arlington, we have identified new quaternary metal oxides with CuWO{sub 4} as primary material host. Our experimental work on ceramics confirmed the theoretical calculations that crowned bismuth as a possible candidate to improve CuWO{sub 4} water splitting efficiency.

  10. Sandia National Laboratories: The apple doesn't fall far

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

    The apple doesn't fall far By Rebecca Brock Photography By Stephanie Blackwell Thursday, March 03, 2016 Sandia innovator named Most Promising Asian American Engineer Sandia innovator named Most Promising Asian American Engineer Sandia engineer Tian Ma was named the 2016 Most Promising Asian American Engineer by the Chinese Institute of Engineers-USA (CIE-USA). Tian is being recognized for his achievements in developing new tracking algorithms for a class of remote sensing systems that have

  11. EA-1894: Albeni Falls Flexible Winter Lake Operations, Bonner, Idaho

    Broader source: Energy.gov [DOE]

    DOEs Bonneville Power Administration and the U.S. Army Corps of Engineers, as co-lead Federal agencies, prepared this EA to evaluate the potential environmental impacts of a proposal to operate Albeni Falls dam during the winter months (approximately December 15th to March 31st) and determine whether the existing Columbia River System Operation Review EIS (DOE/EIS-0170) is adequate or a supplemental or new EIS is required.

  12. EIS-0156: Cowlitz Falls Final Environmental Impact Statement

    Broader source: Energy.gov [DOE]

    The Federal Energy Regulatory Commission prepared this statement to assess the environmental impacts of constructing and operating a proposed 70-megawatt hydroelectric dam and electrical infrastructure on the Cowlitz River near Morton and Randle, Washington. The U.S. Department of Energy's Bonneville Power Administration adopted this statement on 12/6/1990 to fulfil its National Environmental Policy Act requirement for its proposed action to acquire the power output from the Cowlitz Falls Hydroelectric Project.

  13. 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

  14. Niagara Falls Storage Site Vicinity Properties in Lewiston, New York,

    Office of Legacy Management (LM)

    Niagara Falls Storage Site Vicinity Properties in Lewiston, New York, from 7983 through 7986 Depatfment of Energy Former Sites Restoration Division Oak Ridge Field Office July 7 992 I I I I I I I I I I I I I I I I I I I CONTENTS Figures .......................... Tables .......................... Abbreviations ....................... Acronyms ......................... 1.0 Introduction ..................... 2.0 Site History ..................... 3.0 Property Descriptions ................ 3.1 3.2

  15. Microsoft Word - DSQ Fall 2009_26oct09

    National Nuclear Security Administration (NNSA)

    Fall 2009 Comments Questions or comments regarding the Defense Science Quarterly should be directed to Terri Batuyong (Terri.Batuyong@nnsa.doe.gov). Technical Editor: Christina Coulter Defense Science Quarterly Inside This Issue 1 Message from the Director 2 Advances in Performance of Microchannel Plate Detectors for HEDP Diagnostics 3 JMP Receives DP Award of Excellence 4 Flyer Plate Accelerated to Over 100,000 mph on Z 5 A New Generation of Exploring Matter at Extreme Conditions 5 2009 Edward

  16. Hydrogenation of O and OH on Pt(111): A comparison between the reaction rates of the first and the second hydrogen addition steps

    SciTech Connect (OSTI)

    Nslund, L.-., E-mail: lars-ake.naslund@liu.se [Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, California 94025 (United States)

    2014-03-14

    The formation of water through hydrogenation of oxygen on platinum occurs at a surprisingly low reaction rate. The reaction rate limited process for this catalytic reaction is, however, yet to be settled. In the present work, the reaction rates of the first and the second hydrogen addition steps are compared when hydrogen is obtained through intense synchrotron radiation that induces proton production in a water overlayer on top of the adsorbed oxygen species. A substantial amount of the produced hydrogen diffuses to the platinum surface and promotes water formation at the two starting conditions O/Pt(111) and (H{sub 2}O+OH)/Pt(111). The comparison shows no significant difference in the reaction rate between the first and the second hydrogen addition steps, which indicates that the rate determining process of the water formation from oxygen on Pt(111) is neither the first nor the second H addition step or, alternatively, that both H addition steps exert rate control.

  17. Hydrogen-selective membrane

    DOE Patents [OSTI]

    Collins, John P. (Boulder, CO); Way, J. Douglas (Boulder, CO)

    1997-01-01

    A hydrogen-selective membrane comprises a tubular porous ceramic support having a palladium metal layer deposited on an inside surface of the ceramic support. The thickness of the palladium layer is greater than about 10 .mu.m but typically less than about 20 .mu.m. The hydrogen permeation rate of the membrane is greater than about 1.0 moles/m.sup.2. s at a temperature of greater than about 500.degree. C. and a transmembrane pressure difference of about 1,500 kPa. Moreover, the hydrogen-to-nitrogen selectivity is greater than about 600 at a temperature of greater than about 500.degree. C. and a transmembrane pressure of about 700 kPa. Hydrogen can be separated from a mixture of gases using the membrane. The method may include the step of heating the mixture of gases to a temperature of greater than about 400.degree. C. and less than about 1000.degree. C. before the step of flowing the mixture of gases past the membrane. The mixture of gases may include ammonia. The ammonia typically is decomposed to provide nitrogen and hydrogen using a catalyst such as nickel. The catalyst may be placed inside the tubular ceramic support. The mixture of gases may be supplied by an industrial process such as the mixture of exhaust gases from the IGCC process.

  18. Hydrogen-Selective Membrane

    DOE Patents [OSTI]

    Collins, John P. (Boulder, CO); Way, J. Douglas (Boulder, CO)

    1995-09-19

    A hydrogen-selective membrane comprises a tubular porous ceramic support having a palladium metal layer deposited on an inside surface of the ceramic support. The thickness of the palladium layer is greater than about 10 .mu.m but typically less than about 20 .mu.m. The hydrogen permeation rate of the membrane is greater than about 1.0 moles/m.sup.2.s at a temperature of greater than about 500.degree. C. and a transmembrane pressure difference of about 1,500 kPa. Moreover, the hydrogen-to-nitrogen selectivity is greater than about 600 at a temperature of greater than about 500.degree. C. and a transmembrane pressure of about 700 kPa. Hydrogen can be separated from a mixture of gases using the membrane. The method may include the step of heating the mixture of gases to a temperature of greater than about 400.degree. C. and less than about 1000.degree. C. before the step of flowing the mixture of gases past the membrane. The mixture of gases may include ammonia. The ammonia typically is decomposed to provide nitrogen and hydrogen using a catalyst such as nickel. The catalyst may be placed inside the tubular ceramic support. The mixture of gases may be supplied by an industrial process such as the mixture of exhaust gases from the IGCC process.

  19. Hydrogen-selective membrane

    DOE Patents [OSTI]

    Collins, J.P.; Way, J.D.

    1995-09-19

    A hydrogen-selective membrane comprises a tubular porous ceramic support having a palladium metal layer deposited on an inside surface of the ceramic support. The thickness of the palladium layer is greater than about 10 {micro}m but typically less than about 20 {micro}m. The hydrogen permeation rate of the membrane is greater than about 1.0 moles/m{sup 2}s at a temperature of greater than about 500 C and a transmembrane pressure difference of about 1,500 kPa. Moreover, the hydrogen-to-nitrogen selectivity is greater than about 600 at a temperature of greater than about 500 C and a transmembrane pressure of about 700 kPa. Hydrogen can be separated from a mixture of gases using the membrane. The method may include the step of heating the mixture of gases to a temperature of greater than about 400 C and less than about 1000 C before the step of flowing the mixture of gases past the membrane. The mixture of gases may include ammonia. The ammonia typically is decomposed to provide nitrogen and hydrogen using a catalyst such as nickel. The catalyst may be placed inside the tubular ceramic support. The mixture of gases may be supplied by an industrial process such as the mixture of exhaust gases from the IGCC process. 9 figs.

  20. Hydrogen-selective membrane

    DOE Patents [OSTI]

    Collins, J.P.; Way, J.D.

    1997-07-29

    A hydrogen-selective membrane comprises a tubular porous ceramic support having a palladium metal layer deposited on an inside surface of the ceramic support. The thickness of the palladium layer is greater than about 10 {micro}m but typically less than about 20 {micro}m. The hydrogen permeation rate of the membrane is greater than about 1.0 moles/m{sup 2} s at a temperature of greater than about 500 C and a transmembrane pressure difference of about 1,500 kPa. Moreover, the hydrogen-to-nitrogen selectivity is greater than about 600 at a temperature of greater than about 500 C and a transmembrane pressure of about 700 kPa. Hydrogen can be separated from a mixture of gases using the membrane. The method may include the step of heating the mixture of gases to a temperature of greater than about 400 C and less than about 1000 C before the step of flowing the mixture of gases past the membrane. The mixture of gases may include ammonia. The ammonia typically is decomposed to provide nitrogen and hydrogen using a catalyst such as nickel. The catalyst may be placed inside the tubular ceramic support. The mixture of gases may be supplied by an industrial process such as the mixture of exhaust gases from the IGCC process. 9 figs.