National Library of Energy BETA

Sample records for dissolved gas compositions

  1. Variations in dissolved gas compositions of reservoir fluids...

    Open Energy Info (EERE)

    distinct regions of single-phase (liquid) reservoir are present and possess distinctive gas and liquid compositions. Relationships in soluble and insoluble gases preclude...

  2. Variations in dissolved gas compositions of reservoir fluids from the Coso geothermal field

    SciTech Connect (OSTI)

    Williams, Alan E.; Copp, John F.

    1991-01-01

    Gas concentrations and ratios in 110 analyses of geothermal fluids from 47 wells in the Coso geothermal system illustrate the complexity of this two-phase reservoir in its natural state. Two geographically distinct regions of single-phase (liquid) reservoir are present and possess distinctive gas and liquid compositions. Relationships in soluble and insoluble gases preclude derivation of these waters from a common parent by boiling or condensation alone. These two regions may represent two limbs of fluid migration away from an area of two-phase upwelling. During migration, the upwelling fluids mix with chemically evolved waters of moderately dissimilar composition. CO{sub 2} rich fluids found in the limb in the southeastern portion of the Coso field are chemically distinct from liquids in the northern limb of the field. Steam-rich portions of the reservoir also indicate distinctive gas compositions. Steam sampled from wells in the central and southwestern Coso reservoir is unusually enriched in both H{sub 2}S and H{sub 2}. Such a large enrichment in both a soluble and insoluble gas cannot be produced by boiling of any liquid yet observed in single-phase portions of the field. In accord with an upflow-lateral mixing model for the Coso field, at least three end-member thermal fluids having distinct gas and liquid compositions appear to have interacted (through mixing, boiling and steam migration) to produce the observed natural state of the reservoir.

  3. Review of dissolved gas supersaturation literature

    SciTech Connect (OSTI)

    Weitkamp, D.E.; Katz, M.

    1980-11-01

    Dissolved gas supersaturation is a condition that results from natural and human-caused processes. Supersaturation can result in gas bubble disease which has been described in a wide variety of fishes and invertebrates. In recent years dissolved gas supersaturation resulting from dams and thermal discharges has produced mortalities of fish in several cases. This review discusses most of the available literature dealing with dissolved gas supersaturation and the recorded cases of gas bubble disease.

  4. A review of dissolved gas supersaturation literature

    SciTech Connect (OSTI)

    Weitkamp, D.E.; Katz, M.

    1980-11-01

    Gas bubble disease in a condition that affects aquatic animals residing in fresh or marine waters that are supersaturated with atmospheric gases. The majority of research concerning dissolved gas supersaturation has been stimulated by a serious supersaturation problem that was first observed in the Columbia and Snake river systems in 1970. Available literature dealing with dissolved gas supersaturation and recorded cases of gas bubble disease are reviewed. The causes of supersaturation, the organisms affected by supersaturation, factors influencing susceptibility of aquatic organisms to gas bubble disease, and various other related topics are explored.

  5. ,"West Virginia Associated-Dissolved Natural Gas, Wet After Lease...

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

    Data for" ,"Data 1","West Virginia Associated-Dissolved Natural Gas, Wet ... PM" "Back to Contents","Data 1: West Virginia Associated-Dissolved Natural Gas, Wet ...

  6. Texas Associated-Dissolved Natural Gas, Wet After Lease Separation...

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

    Texas Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves ... Wet After Lease Separation, as of Dec. 31 Texas Associated-Dissolved Natural Gas Proved ...

  7. ,"Virginia Associated-Dissolved Natural Gas, Wet After Lease...

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

    Data for" ,"Data 1","Virginia Associated-Dissolved Natural Gas, Wet ... 12:24:05 PM" "Back to Contents","Data 1: Virginia Associated-Dissolved Natural Gas, Wet ...

  8. Texas State Offshore Associated-Dissolved Natural Gas, Wet After...

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

    Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) Texas State Offshore Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves...

  9. New Mexico Associated-Dissolved Natural Gas, Reserves in Nonproducing...

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

    Reserves in Nonproducing Reservoirs, Wet (Billion Cubic Feet) New Mexico Associated-Dissolved Natural Gas, Reserves in Nonproducing Reservoirs, Wet (Billion Cubic Feet) Decade...

  10. ,"New Mexico Associated-Dissolved Natural Gas Proved Reserves...

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

    Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","New Mexico Associated-Dissolved Natural Gas Proved Reserves, Wet After Lease...

  11. Nebraska Associated-Dissolved Natural Gas, Wet After Lease Separation,

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

    Proved Reserves (Billion Cubic Feet) Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) No Data Available For This Series - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 11/19/2015 Next Release Date: 12/31/2016 Referring Pages: Associated-Dissolved Natural Gas Proved Reserves, Wet After Lease Separation, as of Dec. 31 Nebraska Associated-Dissolved Natural

  12. Crude oil and natural gas dissolved in deep, hot geothermal waters...

    Office of Scientific and Technical Information (OSTI)

    Conference: Crude oil and natural gas dissolved in deep, hot geothermal waters of ... Title: Crude oil and natural gas dissolved in deep, hot geothermal waters of petroleum ...

  13. Pennsylvania Associated-Dissolved Natural Gas, Wet After Lease Separation,

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

    Proved Reserves (Billion Cubic Feet) Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) Pennsylvania Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1970's 9 1980's 11 14 14 21 78 67 22 21 8 19 1990's 23 20 10 8 9 36 47 92 79 96 2000's 157 168 137 164 125 134 151 130 127 133 2010's 144 134 125 269 299 - = No Data

  14. Louisiana - North Associated-Dissolved Natural Gas, Wet After Lease

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

    Separation, Proved Reserves (Billion Cubic Feet) Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) Louisiana - North Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1970's 765 1980's 916 1,040 832 775 690 632 567 488 249 237 1990's 241 192 160 120 134 133 255 287 183 260 2000's 186 168 159 139 107 98 90 73 78 53

  15. Michigan Associated-Dissolved Natural Gas, Wet After Lease Separation,

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

    Proved Reserves (Billion Cubic Feet) Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) Michigan Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1970's 733 1980's 883 758 719 824 774 689 577 569 491 432 1990's 408 437 352 328 357 326 347 281 228 227 2000's 214 159 214 269 193 153 192 179 148 77 2010's 72 77 94 125 108

  16. Miscellaneous States Associated-Dissolved Natural Gas, Wet After Lease

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

    Separation, Proved Reserves (Billion Cubic Feet) Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) Miscellaneous States Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1970's 14 1980's 34 12 27 31 14 25 41 13 28 39 1990's 22 14 11 9 11 32 28 31 17 54 2000's 19 19 20 14 12 14 19 15 9 78 2010's 10 104 7 19 18 - = No

  17. Mississippi Associated-Dissolved Natural Gas, Wet After Lease Separation,

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

    Proved Reserves (Billion Cubic Feet) Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) Mississippi Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1970's 67 1980's 73 66 74 80 114 105 66 61 71 105 1990's 126 108 85 53 43 27 47 51 47 31 2000's 35 26 33 27 20 20 21 30 45 38 2010's 36 62 62 43 58 - = No Data Reported; --

  18. Montana Associated-Dissolved Natural Gas, Wet After Lease Separation,

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

    Proved Reserves (Billion Cubic Feet) Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) Montana Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1970's 51 1980's 122 89 81 108 77 91 98 97 101 68 1990's 86 66 61 53 55 53 51 42 52 67 2000's 70 85 94 112 130 161 195 219 197 312 2010's 302 270 289 304 325 - = No Data

  19. Alabama Associated-Dissolved Natural Gas, Wet After Lease Separation,

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

    Proved Reserves (Billion Cubic Feet) Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) Alabama Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1970's 13 1980's 23 25 1990's 25 23 30 46 56 44 38 30 28 27 2000's 29 26 31 32 32 29 18 20 19 29 2010's 38 48 100 46 141 - = No Data Reported; -- = Not Applicable; NA = Not

  20. Arkansas Associated-Dissolved Natural Gas, Wet After Lease Separation,

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

    Proved Reserves (Billion Cubic Feet) Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) Arkansas Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1970's 166 1980's 194 184 174 194 189 157 150 145 157 145 1990's 67 136 133 93 85 104 89 56 38 41 2000's 39 30 38 37 40 46 44 37 12 20 2010's 29 46 82 135 189 - = No Data

  1. California - Coastal Region Onshore Associated-Dissolved Natural Gas, Wet

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

    After Lease Separation, Proved Reserves (Billion Cubic Feet) Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) California - Coastal Region Onshore Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1970's 307 1980's 265 265 325 344 256 254 261 243 220 233 1990's 228 220 196 135 145 109 120 129 116 233 2000's 244 185 197

  2. California - Los Angeles Basin Onshore Associated-Dissolved Natural Gas,

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

    Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) California - Los Angeles Basin Onshore Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1970's 175 1980's 207 162 103 114 162 185 149 155 158 141 1990's 110 120 100 108 108 115 112 143 153 174 2000's 203

  3. California Federal Offshore Associated-Dissolved Natural Gas, Wet After

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

    Lease Separation, Proved Reserves (Billion Cubic Feet) Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) California Federal Offshore Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1970's 249 1980's 307 1,110 1,249 1,312 1,252 1990's 1,229 995 987 976 1,077 1,195 1,151 498 437 488 2000's 500 490 459 456 412 776 756

  4. Florida Associated-Dissolved Natural Gas, Wet After Lease Separation,

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

    Proved Reserves (Billion Cubic Feet) Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) Florida Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1970's 108 1980's 122 99 86 64 90 81 69 62 69 57 1990's 53 45 55 59 117 110 119 112 106 100 2000's 93 96 102 92 88 87 50 110 1 7 2010's 30 2 0 1 0 - = No Data Reported; -- =

  5. Kentucky Associated-Dissolved Natural Gas, Wet After Lease Separation,

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

    Proved Reserves (Billion Cubic Feet) Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) Kentucky Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1970's 2 1980's 11 14 12 19 17 13 17 19 19 22 1990's 8 10 8 6 47 27 24 26 20 29 2000's 27 25 25 25 19 30 36 34 34 32 2010's 111 98 93 44 49 - = No Data Reported; -- = Not

  6. Wyoming Associated-Dissolved Natural Gas, Wet After Lease Separation,

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

    Proved Reserves (Billion Cubic Feet) Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) Wyoming Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1970's 1,038 1980's 1,374 1,228 1,060 959 867 710 691 691 616 581 1990's 573 572 624 502 611 879 824 850 794 713 2000's 652 488 561 450 362 384 347 365 223 362 2010's 334 318

  7. Oklahoma Associated-Dissolved Natural Gas, Wet After Lease Separation,

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

    Proved Reserves (Billion Cubic Feet) Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) Oklahoma Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1970's 2,246 1980's 2,252 2,441 2,426 2,269 2,244 2,149 2,191 2,017 1,894 1,785 1990's 1,820 1,406 1,483 1,550 1,342 1,228 1,023 1,015 1,196 1,238 2000's 1,113 1,109 1,177

  8. Louisiana Associated-Dissolved Natural Gas, Wet After Lease Separation,

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

    Proved Reserves (Billion Cubic Feet) Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) Louisiana Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1980's 3,360 2,391 2,128 1,794 1,741 1990's 1,554 1,394 1,167 926 980 1,001 1,039 1,016 911 979 2000's 807 796 670 586 557 588 561 641 1,235 1,072 2010's 679 639 773 870 908

  9. California - San Joaquin Basin Onshore Associated-Dissolved Natural Gas,

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

    Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) California - San Joaquin Basin Onshore Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1970's 2,253 1980's 2,713 2,664 2,465 2,408 2,270 2,074 2,006 2,033 1,947 1,927 1990's 1,874 1,818 1,738 1,676 1,386

  10. California Associated-Dissolved Natural Gas, Wet After Lease Separation,

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

    Proved Reserves (Billion Cubic Feet) Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) California Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1970's 2,961 1980's 3,345 2,660 2,663 2,546 2,507 1990's 2,400 2,213 2,093 1,982 1,698 1,619 1,583 1,820 1,879 2,150 2000's 2,198 1,922 1,900 1,810 2,006 2,585 2,155 2,193

  11. Colorado Associated-Dissolved Natural Gas, Wet After Lease Separation,

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

    Proved Reserves (Billion Cubic Feet) Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) Colorado Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1970's 181 1980's 200 259 206 173 208 167 190 219 177 236 1990's 510 682 762 1,162 1,088 1,072 1,055 533 772 781 2000's 960 1,025 1,097 1,186 1,293 1,326 1,541 1,838 2,010

  12. U.S. Federal Offshore Associated-Dissolved Natural Gas, Wet After...

    Gasoline and Diesel Fuel Update (EIA)

    Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) U.S. Federal Offshore Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves...

  13. Virginia Associated-Dissolved Natural Gas, Wet After Lease Separation,

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

    Proved Reserves (Billion Cubic Feet) Virginia Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1980's 0 0 0 0 0 0 0 0 1990's 0 0 0 0 0 0 0 0 0 0 2000's 0 0 0 0 0 0 0 0 0 0 2010's 0 0 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 11/19/2015 Next Release Date: 12/31/2016

  14. PREDICTION OF TOTAL DISSOLVED GAS EXCHANGE AT HYDROPOWER DAMS

    SciTech Connect (OSTI)

    Hadjerioua, Boualem; Pasha, MD Fayzul K; Stewart, Kevin M; Bender, Merlynn; Schneider, Michael L.

    2012-07-01

    Total dissolved gas (TDG) supersaturation in waters released at hydropower dams can cause gas bubble trauma in fisheries resulting in physical injuries and eyeball protrusion that can lead to mortality. Elevated TDG pressures in hydropower releases are generally caused by the entrainment of air in spillway releases and the subsequent exchange of atmospheric gasses into solution during passage through the stilling basin. The network of dams throughout the Columbia River Basin (CRB) are managed for irrigation, hydropower production, flood control, navigation, and fish passage that frequently result in both voluntary and involuntary spillway releases. These dam operations are constrained by state and federal water quality standards for TDG saturation which balance the benefits of spillway operations designed for Endangered Species Act (ESA)-listed fisheries versus the degradation to water quality as defined by TDG saturation. In the 1970s, the United States Environmental Protection Agency (USEPA), under the federal Clean Water Act (Section 303(d)), established a criterion not to exceed the TDG saturation level of 110% in order to protect freshwater and marine aquatic life. The states of Washington and Oregon have adopted special water quality standards for TDG saturation in the tailrace and forebays of hydropower facilities on the Columbia and Snake Rivers where spillway operations support fish passage objectives. The physical processes that affect TDG exchange at hydropower facilities have been studied throughout the CRB in site-specific studies and routine water quality monitoring programs. These data have been used to quantify the relationship between project operations, structural properties, and TDG exchange. These data have also been used to develop predictive models of TDG exchange to support real-time TDG management decisions. These empirically based predictive models have been developed for specific projects and account for both the fate of spillway and powerhouse flows in the tailrace channel and resultant exchange in route to the next downstream dam. Currently, there exists a need to summarize the general finding from operational and structural TDG abatement programs conducted throughout the CRB and for the development of a generalized prediction model that pools data collected at multiple projects with similar structural attributes. A generalized TDG exchange model can be tuned to specific projects and coupled with water regulation models to allow the formulation of optimal daily water regulation schedules subject to water quality constraints for TDG supersaturation. A generalized TDG exchange model can also be applied to other hydropower dams that affect TDG pressures in tailraces and can be used to develop alternative operational and structural measures to minimize TDG generation. It is proposed to develop a methodology for predicting TDG levels downstream of hydropower facilities with similar structural properties as a function of a set of variables that affect TDG exchange; such as tailwater depth, spill discharge and pattern, project head, and entrainment of powerhouse releases. TDG data from hydropower facilities located throughout the northwest region of the United States will be used to identify relationships between TDG exchange and relevant dependent variables. Data analysis and regression techniques will be used to develop predictive TDG exchange expressions for various structural categories.

  15. Total dissolved gas prediction and optimization in RiverWare

    SciTech Connect (OSTI)

    Stewart, Kevin M.; Witt, Adam M.; Hadjerioua, Boualem

    2015-09-01

    Management and operation of dams within the Columbia River Basin (CRB) provides the region with irrigation, hydropower production, flood control, navigation, and fish passage. These various system-wide demands can require unique dam operations that may result in both voluntary and involuntary spill, thereby increasing tailrace levels of total dissolved gas (TDG) which can be fatal to fish. Appropriately managing TDG levels within the context of the systematic demands requires a predictive framework robust enough to capture the operationally related effects on TDG levels. Development of the TDG predictive methodology herein attempts to capture the different modes of hydro operation, thereby making it a viable tool to be used in conjunction with a real-time scheduling model such as RiverWare. The end result of the effort will allow hydro operators to minimize system-wide TDG while meeting hydropower operational targets and constraints. The physical parameters such as spill and hydropower flow proportions, accompanied by the characteristics of the dam such as plant head levels and tailrace depths, are used to develop the empirically-based prediction model. In the broader study, two different models are developed a simplified and comprehensive model. The latter model incorporates more specific bubble physics parameters for the prediction of tailrace TDG levels. The former model is presented herein and utilizes an empirically based approach to predict downstream TDG levels based on local saturation depth, spillway and powerhouse flow proportions, and entrainment effects. Representative data collected from each of the hydro projects is used to calibrate and validate model performance and the accuracy of predicted TDG uptake. ORNL, in conjunction with IIHR - Hydroscience & Engineering, The University of Iowa, carried out model adjustments to adequately capture TDG levels with respect to each plant while maintaining a generalized model configuration. Validation results indicate excellent model performance with coefficient of determination values exceeding 92% for all sites. This approach enables model extension to an increasingly wider array of hydropower plants, i.e., with the proper data input, TDG uptake can be calculated independent of actual physical component design. The TDG model is used as a module in the systematic optimization framework of RiverWare, a river and reservoir modeling tool used by federal agencies, public utility districts, and other dam owners and operators to forecast, schedule, and manage hydropower assets. The integration and testing of the TDG module within RiverWare, led by University of Colorado s Center for Advanced Decision Support for Water and Environmental Systems (CADSWES), will allow users to generate optimum system schedules based on the minimization of TDG. Optimization analysis and added value will be quantified as system wide reductions in TDG achieved while meeting existing hydropower constraints. Future work includes the development of a method to predict downstream reservoir forebay TDG levels as a function of upstream reservoir tailrace TDG values based on river hydrodynamics, hydro operations, and reservoir characteristics. Once implemented, a holistic model that predicts both TDG uptake and transport will give hydropower operators valuable insight into how system-wide environmental effects can be mitigated while simultaneously balancing stakeholder interests.

  16. North Dakota Associated-Dissolved Natural Gas, Wet After Lease Separation,

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

    Proved Reserves (Billion Cubic Feet) Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) North Dakota Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1970's 201 1980's 239 253 248 257 267 331 293 276 266 313 1990's 334 243 266 274 275 263 255 257 261 250 2000's 264 270 315 316 320 343 357 417 484 1,070 2010's 1,717

  17. Ohio Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved

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

    Reserves (Billion Cubic Feet) Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) Ohio Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1970's 1,047 1980's 1,417 800 984 1,635 1,178 938 898 594 480 589 1990's 371 376 381 343 315 355 399 391 342 402 2000's 469 340 346 304 208 184 174 101 99 97 2010's 90 74 223 314 208 - =

  18. Louisiana - South Onshore Associated-Dissolved Natural Gas, Wet After Lease

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

    Separation, Proved Reserves (Billion Cubic Feet) South Onshore Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) Louisiana - South Onshore Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1970's 2,304 1980's 2,134 1,871 1,789 1,582 1,488 1,792 1,573 1,380 1,338 1,273 1990's 1,106 995 853 649 678 720 627 599 630 599

  19. Louisiana State Offshore Associated-Dissolved Natural Gas, Wet After Lease

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

    Separation, Proved Reserves (Billion Cubic Feet) Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) Louisiana State Offshore Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1980's 449 251 260 207 231 1990's 207 207 154 157 168 148 157 130 98 120 2000's 129 145 84 79 61 63 56 65 686 513 2010's 107 51 128 88 68 - = No

  20. New Mexico - West Associated-Dissolved Natural Gas, Wet After Lease

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

    Separation, Proved Reserves (Billion Cubic Feet) West Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) New Mexico - West Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1970's 151 1980's 156 150 146 180 194 181 214 213 259 178 1990's 184 156 127 107 97 119 108 106 98 92 2000's 115 99 103 89 90 98 82 87 86 82 2010's

  1. New York Associated-Dissolved Natural Gas, Wet After Lease Separation,

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

    Proved Reserves (Billion Cubic Feet) Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) New York Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1970's 0 1980's 0 2 3 0 2 2 0 0 0 4 1990's 0 0 0 0 2 2 3 1 1 9 2000's 2 7 0 0 0 3 2 10 29 0 2010's 10 8 6 6 5 - = No Data Reported; -- = Not Applicable; NA = Not Available; W

  2. California State Offshore Associated-Dissolved Natural Gas, Wet After Lease

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

    Separation, Proved Reserves (Billion Cubic Feet) Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) California State Offshore Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1970's 226 1980's 160 244 232 221 206 1990's 188 55 59 63 59 56 47 54 39 58 2000's 86 80 85 76 85 89 85 79 54 53 2010's 63 79 65 75 76 - = No Data

  3. Gulf of Mexico Federal Offshore - Texas Associated-Dissolved Natural Gas,

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

    Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) Texas Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) Gulf of Mexico Federal Offshore - Texas Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1980's 474 320 541 522 532 494 1990's 446 407 691 574 679 891 794 1,228 1,224 1,383 2000's 1,395 1,406 1,267

  4. Kansas Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved

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

    Reserves (Billion Cubic Feet) Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) Kansas Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1970's 167 1980's 185 139 112 132 110 115 132 115 103 101 1990's 114 115 94 93 75 67 82 51 60 52 2000's 40 105 66 85 80 83 82 83 85 83 2010's 79 127 326 433 657 - = No Data Reported;

  5. Texas - RRC District 1 Associated-Dissolved Natural Gas, Wet After Lease

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

    Separation, Proved Reserves (Billion Cubic Feet) Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) Texas - RRC District 1 Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1970's 209 1980's 172 180 216 175 170 260 241 205 204 251 1990's 333 401 361 191 151 248 446 68 51 67 2000's 69 43 47 48 45 57 61 72 60 67 2010's 267

  6. Texas - RRC District 10 Associated-Dissolved Natural Gas, Wet After Lease

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

    Separation, Proved Reserves (Billion Cubic Feet) 0 Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) Texas - RRC District 10 Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1970's 484 1980's 546 456 489 537 617 560 537 482 424 364 1990's 311 298 396 264 264 254 253 227 234 241 2000's 289 255 271 252 249 253 316 436

  7. Texas - RRC District 2 Onshore Associated-Dissolved Natural Gas, Wet After

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

    Lease Separation, Proved Reserves (Billion Cubic Feet) 2 Onshore Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) Texas - RRC District 2 Onshore Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1970's 955 1980's 921 806 780 747 661 570 517 512 428 430 1990's 407 352 308 288 299 245 252 235 204 202 2000's 115 65 70 81

  8. Texas - RRC District 4 Onshore Associated-Dissolved Natural Gas, Wet After

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

    Lease Separation, Proved Reserves (Billion Cubic Feet) 4 Onshore Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) Texas - RRC District 4 Onshore Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1970's 1,416 1980's 1,292 1,005 890 765 702 684 596 451 393 371 1990's 301 243 228 215 191 209 246 368 394 182 2000's 176 140

  9. Texas - RRC District 5 Associated-Dissolved Natural Gas, Wet After Lease

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

    Separation, Proved Reserves (Billion Cubic Feet) 5 Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) Texas - RRC District 5 Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1970's 62 1980's 75 44 47 52 44 40 69 118 101 136 1990's 116 89 126 141 148 47 53 68 89 49 2000's 128 83 65 62 58 51 57 50 40 21 2010's 8 40 53 177

  10. Texas - RRC District 6 Associated-Dissolved Natural Gas, Wet After Lease

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

    Separation, Proved Reserves (Billion Cubic Feet) 6 Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) Texas - RRC District 6 Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1970's 868 1980's 954 869 881 943 938 874 822 811 728 695 1990's 668 638 606 607 547 611 562 578 580 545 2000's 464 412 400 387 402 344 276 247 412

  11. Texas - RRC District 7B Associated-Dissolved Natural Gas, Wet After Lease

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

    Separation, Proved Reserves (Billion Cubic Feet) 7B Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) Texas - RRC District 7B Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1970's 234 1980's 332 292 214 338 292 276 244 282 264 196 1990's 214 157 170 187 181 276 232 260 204 190 2000's 114 88 57 69 76 73 74 62 68 102

  12. Texas - RRC District 9 Associated-Dissolved Natural Gas, Wet After Lease

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

    Separation, Proved Reserves (Billion Cubic Feet) 9 Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) Texas - RRC District 9 Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1970's 175 1980's 249 274 299 255 274 290 263 267 241 212 1990's 214 200 184 178 148 138 121 147 199 180 2000's 209 124 140 125 110 126 105 139 158

  13. Utah Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved

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

    Reserves (Billion Cubic Feet) Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) Utah Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1970's 367 1980's 414 335 325 360 341 391 410 471 475 442 1990's 455 469 309 289 286 277 301 310 209 321 2000's 348 303 359 299 290 308 317 368 321 601 2010's 631 909 1,001 895 872 - =

  14. West Virginia Associated-Dissolved Natural Gas, Wet After Lease Separation,

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

    Proved Reserves (Billion Cubic Feet) Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) West Virginia Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1970's 76 1980's 122 63 83 86 73 73 65 150 141 98 1990's 86 159 198 190 133 74 71 59 43 88 2000's 98 48 21 23 20 19 16 16 23 24 2010's 29 52 21 70 32 - = No Data

  15. The effects of total dissolved gas on chum salmon fry survival, growth, gas bubble disease, and seawater tolerance

    SciTech Connect (OSTI)

    Geist, David R.; Linley, Timothy J.; Cullinan, Valerie I.; Deng, Zhiqun

    2013-02-01

    Chum salmon Oncorhynchus keta alevin developing in gravel habitats downstream of Bonneville Dam on the Columbia River are exposed to elevated levels of total dissolved gas (TDG) when water is spilled at the dam to move migrating salmon smolts downstream to the Pacific Ocean. Current water quality criteria for the management of dissolved gas in dam tailwaters were developed primarily to protect salmonid smolts and are assumed to be protective of alevin if adequate depth compensation is provided. We studied whether chum salmon alevin exposed to six levels of dissolved gas ranging from 100% to 130% TDG at three development periods between hatch and emergence (hereafter early, middle, and late stage) suffered differential mortality, growth, gas bubble disease, or seawater tolerance. Each life stage was exposed for 50 d (early stage), 29 d (middle stage), or 16 d (late stage) beginning at 13, 34, and 37 d post-hatch, respectively, through 50% emergence. The mortality for all stages from exposure to emergence was estimated to be 8% (95% confidence interval (CI) of 4% to 12%) when dissolved gas levels were between 100% and 117% TDG. Mortality significantly increased as dissolved gas levels rose above 117% TDG,; with the lethal concentration that produced 50% mortality (LC50 ) was estimated to be 128.7% TDG (95% CI of 127.2% to 130.2% TDG) in the early and middle stages. By contrast, there was no evidence that dissolved gas level significantly affected growth in any life stage except that the mean wet weight at emergence of early stage fish exposed to 130% TDG was significantly less than the modeled growth of unexposed fish. The proportion of fish afflicted with gas bubble disease increased with increasing gas concentrations and occurred most commonly in the nares and gastrointestinal tract. Early stage fish exhibited higher ratios of filament to lamellar gill chloride cells than late stage fish, and these ratios increased and decreased for early and late stage fish, respectively, as gas levels increased; however, there were no significant differences in mortality between life stages after 96 h in seawater. The study results suggest that current water quality guidelines for the management of dissolved gas appear to offer a conservative level of protection to chum salmon alevin incubating in gravel habitat downstream of Bonneville Dam.

  16. Total Dissolved Gas Monitoring in Chum Salmon Spawning Gravels Below Bonneville Dam

    SciTech Connect (OSTI)

    Arntzen, Evan V.; Geist, David R.; Panther, Jennifer L.; Dawley, Earl

    2007-01-30

    At the request of the U.S. Army Corps of Engineers (Portland District), Pacific Northwest National Laboratory (PNNL) conducted research to determine whether total dissolved gas concentrations are elevated in chum salmon redds during spring spill operations at Bonneville Dam. The study involved monitoring the total dissolved gas levels at egg pocket depth and in the river at two chum salmon spawning locations downstream from Bonneville Dam. Dissolved atmospheric gas supersaturation generated by spill from Bonneville Dam may diminish survival of chum (Oncorhynchus keta) salmon when sac fry are still present in the gravel downstream from Bonneville Dam. However, no previous work has been conducted to determine whether total dissolved gas (TDG) levels are elevated during spring spill operations within incubation habitats. The guidance used by hydropower system managers to provide protection for pre-emergent chum salmon fry has been to limit TDG to 105% after allowing for depth compensation. A previous literature review completed in early 2006 shows that TDG levels as low as 103% have been documented to cause mortality in sac fry. Our study measured TDG in the incubation environment to evaluate whether these levels were exceeded during spring spill operations. Total dissolved gas levels were measured within chum salmon spawning areas near Ives Island and Multnomah Falls on the Columbia River. Water quality sensors screened at egg pocket depth and to the river were installed at both sites. At each location, we also measured dissolved oxygen, temperature, specific conductance, and water depth to assist with the interpretation of TDG results. Total dissolved gas was depth-compensated to determine when levels were high enough to potentially affect sac fry. This report provides detailed descriptions of the two study sites downstream of Bonneville Dam, as well as the equipment and procedures employed to monitor the TDG levels at the study sites. Results of the monitoring at both sites are then presented in both text and graphics. The findings and recommendations for further research are discussed, followed by a listing of the references cited in the report.

  17. Composition for absorbing hydrogen from gas mixtures

    DOE Patents [OSTI]

    Heung, Leung K.; Wicks, George G.; Lee, Myung W.

    1999-01-01

    A hydrogen storage composition is provided which defines a physical sol-gel matrix having an average pore size of less than 3.5 angstroms which effectively excludes gaseous metal hydride poisons while permitting hydrogen gas to enter. The composition is useful for separating hydrogen gas from diverse gas streams which may have contaminants that would otherwise render the hydrogen absorbing material inactive.

  18. On-line fast response device and method for measuring dissolved gas in a fluid

    DOE Patents [OSTI]

    Tutu, Narinder Kumar

    2011-01-11

    A method and device for the measurement of dissolved gas within a fluid. The fluid, substantially a liquid, is pumped into a pipe. The flow of the fluid is temporally restricted, creating one or more low pressure regions. A measurement indicative of trapped air is taken before and after the restriction. The amount of dissolved air is calculated from the difference between the first and second measurements. Preferably measurements indicative of trapped air is obtained from one or more pressure transducers, capacitance transducers, or combinations thereof. In the alternative, other methods such as those utilizing x-rays or gamma rays may also be used to detect trapped air. Preferably, the fluid is a hydraulic fluid, whereby dissolved air in the fluid is detected.

  19. Lower 48 States Associated-Dissolved Natural Gas, Wet After Lease

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

    Separation, Proved Reserves (Billion Cubic Feet) Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) Lower 48 States Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1970's 32,208 1980's 33,443 32,870 31,268 31,286 30,282 29,515 28,684 27,457 26,609 26,611 1990's 26,242 25,088 24,701 23,551 23,913 24,532 24,715 24,666

  20. New Mexico - East Associated-Dissolved Natural Gas, Wet After Lease

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

    Separation, Proved Reserves (Billion Cubic Feet) Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) New Mexico - East Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1970's 1,672 1980's 1,533 1,499 1,374 1,323 1,375 1,309 1,232 1,232 1,194 1,200 1990's 1,251 1,398 1,470 1,478 1,544 1,559 1,585 1,314 1,345 1,486 2000's

  1. New Mexico Associated-Dissolved Natural Gas, Wet After Lease Separation,

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

    Proved Reserves (Billion Cubic Feet) Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) New Mexico Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1970's 1,823 1980's 1,689 1,649 1,520 1,503 1,569 1,490 1,446 1,445 1,453 1,378 1990's 1,435 1,554 1,597 1,585 1,641 1,678 1,693 1,420 1,443 1,578 2000's 1,588 1,447 1,482

  2. Alaska Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved

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

    Reserves (Billion Cubic Feet) Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) Alaska Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1970's 27,217 1980's 28,567 28,676 30,814 30,408 30,356 31,092 30,893 30,732 6,269 6,198 1990's 6,927 6,729 6,723 6,494 6,487 6,265 6,080 7,716 7,275 7,209 2000's 6,768 6,592 6,376

  3. Texas - RRC District 3 Onshore Associated-Dissolved Natural Gas, Wet After

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

    Lease Separation, Proved Reserves (Billion Cubic Feet) 3 Onshore Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) Texas - RRC District 3 Onshore Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1970's 2,513 1980's 2,429 2,080 1,881 1,784 1,756 1,537 1,405 1,296 1,226 1,148 1990's 1,056 1,123 1,206 1,159 1,063 960

  4. Texas - RRC District 8 Associated-Dissolved Natural Gas, Wet After Lease

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

    Separation, Proved Reserves (Billion Cubic Feet) 8 Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) Texas - RRC District 8 Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1970's 2,645 1980's 2,569 2,630 2,908 3,014 2,932 3,004 3,076 2,898 3,072 3,128 1990's 3,068 2,770 2,742 2,562 2,751 2,834 2,981 3,144 2,820 3,175

  5. Texas - RRC District 8A Associated-Dissolved Natural Gas, Wet After Lease

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

    Separation, Proved Reserves (Billion Cubic Feet) A Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) Texas - RRC District 8A Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1970's 1,485 1980's 1,396 1,486 1,420 1,301 1,272 1,314 1,275 1,271 1,267 1,534 1990's 1,526 1,521 1,585 1,451 1,572 1,318 1,276 1,206 1,097 1,513

  6. Table 12. Associated-dissolved natural gas proved reserves, reserves changes, an

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

    Associated-dissolved natural gas proved reserves, reserves changes, and production, wet after lease separation, 2014" "billion cubic feet" ,,"Changes in Reserves During 2014" ,"Published",,,,,,,,"New Reservoir" ,"Proved",,"Revision","Revision",,,,"New Field","Discoveries","Estimated","Proved"

  7. Laboratory Studies of the Effects of Pressure and Dissolved Gas Supersaturation on Turbine-Passed Fish

    SciTech Connect (OSTI)

    Neitzel, Duane A.

    2009-09-14

    Migratory and resident fish in the Columbia River Basin are exposed to stresses associated with hydroelectric power production, including changes in pressure as they pass through turbines and dissolved gas supersaturation (resulting from the release of water from the spillway). To examine pressure changes as a source of turbine-passage injury and mortality, Pacific Northwest National Laboratory scientists conducted specific tests using a hyperbaric chamber. Tests were designed to simulate Kaplan turbine passage conditions and to quantify the response of fish to rapid pressure changes, with and without the complication of fish being acclimated to gas-supersaturated water.

  8. Total Dissolved Gas Effects on Fishes of the Lower Columbia River

    SciTech Connect (OSTI)

    McGrath, Kathy E.; Dawley, Earl; Geist, David R.

    2006-03-31

    Gas supersaturation problems generated by spill from dams on the Columbia River were first identified in the 1960s. Since that time, considerable research has been conducted on effects of gas supersaturation on aquatic life, primarily juvenile salmonids. Also since that time, modifications to dam structures and operations have reduced supersaturated gas levels produced by the dams. The limit for total dissolved gas saturation (TDGS) as mandated by current Environmental Protection Agency water quality standards is 110%. State management agencies issue limited waivers to water quality, allowing production of levels of up to 120% TDGS to facilitate the downstream migration of juvenile salmonids. Recently, gas supersaturation as a water quality issue has resurfaced as concerns have grown regarding chronic effects of spill-related total dissolved gas on salmonids, including incubating embryos and larvae, resident fish species, and other aquatic organisms. Because of current concerns, and because the last comprehensive review of research on supersaturation effects on fishes was conducted in 1997, we reviewed recent supersaturation literature to identify new or ongoing issues that may not be adequately addressed by the current 110% TDGS limit and the 120% TDGS water quality waiver. We found that recent work supports older research indicating that short-term exposure to levels up to 120% TDGS does not produce acute effects on migratory juvenile or adult salmonids when compensating depths are available. Monitoring programs at Snake and Columbia river dams from 1995 to the early 2000s documented a low incidence of significant gas bubble disease or mortality in Columbia River salmonids, resident fishes, or other taxa. We did, however, identify five areas of concern in which total dissolved gas levels lower than water quality limits may produce sublethal effects on fishes of the Columbia River. These areas of concern are 1) sensitive and vulnerable species or life stages, 2) long-term chronic or multiple exposure, 3) vulnerable habitats and reaches, 4) effects on incubating fish in hyporheic habitats, and 5) community and ecosystem effects. Although some of these areas of concern may have been identified previously in earlier works, we suggest that consideration of the issues is warranted to avoid detrimental impacts on aquatic resources of the Columbia River system. We discuss these issues and provide recommendations to regulatory and management agencies based on our review of recent literature. In general, we recommend that additional attention be directed toward resolving the uncertainties within these five areas.

  9. Effects of Dissolved Gas Supersaturation on Fish Residing in the Snake and Columbia Rivers, 1996 Annual Report.

    SciTech Connect (OSTI)

    Schrank, Boyd P.

    1998-03-01

    Increased spill at dams has commonly brought dissolved gas supersaturation higher than levels established by state and federal water quality criteria in the Columbia and Snake Rivers. These increased spill volumes are intended to provide safe passage for migrating juvenile salmon. However, dissolved gas supersaturation resulting from spill in past decades has led to gas bubble disease (GBD) in fish. Therefore, during the period of high spill in 1996, the authors monitored the prevalence and severity of gas bubble disease by sampling resident fish in Priest Rapids Reservoir and downstream from Bonneville, Priest Rapids, and Ice Harbor Dams.

  10. U.S. Associated-Dissolved Natural Gas, Wet After Lease Separation, New

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

    Field Discoveries (Billion Cubic Feet) Field Discoveries (Billion Cubic Feet) U.S. Associated-Dissolved Natural Gas, Wet After Lease Separation, New Field Discoveries (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1970's 193 1980's 365 335 161 220 156 143 88 110 67 208 1990's 141 69 13 245 530 248 222 1,360 107 394 2000's 387 1,287 229 447 34 119 40 46 107 263 2010's 102 611 151 63 327 - = No Data Reported; -- = Not Applicable; NA = Not

  11. U.S. Associated-Dissolved Natural Gas, Wet After Lease Separation, New

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

    Reservoir Discoveries in Old Fields (Billion Cubic Feet) Reservoir Discoveries in Old Fields (Billion Cubic Feet) U.S. Associated-Dissolved Natural Gas, Wet After Lease Separation, New Reservoir Discoveries in Old Fields (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1970's 264 1980's 369 271 365 326 296 341 189 155 339 174 1990's 250 334 292 163 202 634 338 187 218 424 2000's 249 477 331 124 97 79 65 73 820 169 2010's 186 160 229 581 584 -

  12. U.S. Associated-Dissolved Natural Gas, Wet After Lease Separation, Reserves

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

    Acquisitions (Billion Cubic Feet) Acquisitions (Billion Cubic Feet) U.S. Associated-Dissolved Natural Gas, Wet After Lease Separation, Reserves Acquisitions (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2000's 6,586 845 908 1,062 987 2,071 1,960 1,350 938 678 2010's 2,469 1,884 2,150 2,843 4,589 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date:

  13. U.S. Associated-Dissolved Natural Gas, Wet After Lease Separation, Reserves

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

    Adjustments (Billion Cubic Feet) Adjustments (Billion Cubic Feet) U.S. Associated-Dissolved Natural Gas, Wet After Lease Separation, Reserves Adjustments (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1970's 1,925 1980's 1,053 -1,079 843 1,564 -486 695 425 177 437 415 1990's 57 257 567 -302 163 345 164 262 -706 143 2000's -605 499 499 202 -21 126 -54 276 455 877 2010's -482 390 385 -649 1,396 - = No Data Reported; -- = Not Applicable; NA =

  14. Defect Analysis of Vehicle Compressed Natural Gas Composite Cylinder...

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

    Defect Analysis of Vehicle Compressed Natural Gas Composite Cylinder Defect Analysis of Vehicle Compressed Natural Gas Composite Cylinder These slides were presented at the Onboard ...

  15. Laboratory studies of the effects of pressure and dissolved gas supersaturation on turbine-passed fish

    SciTech Connect (OSTI)

    Abernethy, C. S.; Amidan, B. G.; Cada, G. F.

    2001-03-01

    Designing advanced turbine systems requires knowledge of environmental conditions that injure or kill fish such as the stresses associated with hydroelectric power production, including pressure changes fish experience during turbine passage and dissolved gas supersaturation (resulting from the release of water from the spillway). The objective of this study was to examine the relative importance of pressure changes as a source of turbine-passage injury and mortality. Specific tests were designed to quantify the response of fish to rapid pressure changes typical of turbine passage, with and without the complication of the fish being acclimated to gas supersaturated water. The study investigated the responses of rainbow trout (Oncorhynchus mykiss), chinook salmon (O. tshawytscha), and bluegill sunfish (Lepomis macrochirus) to these two stresses, both singly and in combination.

  16. Method for designing gas tag compositions

    DOE Patents [OSTI]

    Gross, K.C.

    1995-04-11

    For use in the manufacture of gas tags such as employed in a nuclear reactor gas tagging failure detection system, a method for designing gas tagging compositions utilizes an analytical approach wherein the final composition of a first canister of tag gas as measured by a mass spectrometer is designated as node No. 1. Lattice locations of tag nodes in multi-dimensional space are then used in calculating the compositions of a node No. 2 and each subsequent node so as to maximize the distance of each node from any combination of tag components which might be indistinguishable from another tag composition in a reactor fuel assembly. Alternatively, the measured compositions of tag gas numbers 1 and 2 may be used to fix the locations of nodes 1 and 2, with the locations of nodes 3-N then calculated for optimum tag gas composition. A single sphere defining the lattice locations of the tag nodes may be used to define approximately 20 tag nodes, while concentric spheres can extend the number of tag nodes to several hundred. 5 figures.

  17. Method for designing gas tag compositions

    DOE Patents [OSTI]

    Gross, Kenny C.

    1995-01-01

    For use in the manufacture of gas tags such as employed in a nuclear reactor gas tagging failure detection system, a method for designing gas tagging compositions utilizes an analytical approach wherein the final composition of a first canister of tag gas as measured by a mass spectrometer is designated as node #1. Lattice locations of tag nodes in multi-dimensional space are then used in calculating the compositions of a node #2 and each subsequent node so as to maximize the distance of each node from any combination of tag components which might be indistinguishable from another tag composition in a reactor fuel assembly. Alternatively, the measured compositions of tag gas numbers 1 and 2 may be used to fix the locations of nodes 1 and 2, with the locations of nodes 3-N then calculated for optimum tag gas composition. A single sphere defining the lattice locations of the tag nodes may be used to define approximately 20 tag nodes, while concentric spheres can extend the number of tag nodes to several hundred.

  18. Impacts of individual fish movement patterns on estimates of mortality due to dissolved gas supersaturation in the Columbia River Basin.

    SciTech Connect (OSTI)

    Scheibe, Timothy D.; Richmond, Marshall C.; Fidler, Larry E.

    2002-12-31

    Spatial and temporal distributions of dissolved gases in the Columbia and Snake rivers vary due to many factors including river channel and dam geometries, operational decisions, and natural variations in flow rates. As a result, the dissolved gas exposure histories experienced by migrating juvenile salmonids can vary significantly among individual fish. A discrete, particle-based model of individual fish movements and dissolved gas exposure history has been developed and applied to examine the effects of such variability on estimates of fish mortality. The model, called the Fish Individual-based Numerical Simulator or FINS, is linked to a two-dimensional (vertically-averaged) hydrodynamic simulator that quantifies local water velocity, temperature, and dissolved gas levels as a function of river flow rates and dam operations. Simulated gas exposure histories are then input to biological mortality models to predict the effects of various river configurations on fish injury and mortality due to dissolved gas supersaturation. This model framework provides a critical linkage between hydrodynamic models of the river system and models of biological effects. FINS model parameters were estimated and validated based on observations of individual fish movements collected using radiotelemetry methods during 1997 and 1998. The model was then used to simulate exposure histories under selected operational scenarios. We compare mortality rates estimated using the FINS model approach (incorporating individual behavior and spatial and temporal variability) to those estimated using average exposure times and levels as is done in traditional lumped-parameter model approaches.

  19. U.S. Associated-Dissolved Natural Gas, Reserves in Nonproducing Reservoirs,

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

    Wet (Billion Cubic Feet) Reserves in Nonproducing Reservoirs, Wet (Billion Cubic Feet) U.S. Associated-Dissolved Natural Gas, Reserves in Nonproducing Reservoirs, Wet (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1990's 5,289 5,631 5,477 5,639 2000's 5,195 6,628 6,573 5,903 5,416 6,271 6,045 6,890 6,680 7,615 2010's 9,099 13,260 19,550 22,218 27,240 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid

  20. U.S. Associated-Dissolved Natural Gas, Wet After Lease Separation,

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

    Estimated Production from Reserves (Billion Cubic Feet) Estimated Production from Reserves (Billion Cubic Feet) U.S. Associated-Dissolved Natural Gas, Wet After Lease Separation, Estimated Production from Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1970's 3,405 1980's 3,405 3,316 3,248 3,355 3,518 3,454 3,443 3,351 3,192 3,099 1990's 2,936 2,968 3,031 2,868 2,907 2,886 2,938 3,022 3,136 3,313 2000's 3,299 3,193 2,988 2,855 2,742

  1. U.S. Associated-Dissolved Natural Gas, Wet After Lease Separation, Reserves

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

    Extensions (Billion Cubic Feet) Extensions (Billion Cubic Feet) U.S. Associated-Dissolved Natural Gas, Wet After Lease Separation, Reserves Extensions (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1970's 1,139 1980's 1,861 1,537 1,351 977 1,182 1,099 758 542 498 760 1990's 615 737 760 867 850 857 991 1,116 727 586 2000's 2,683 1,194 852 817 907 1,032 810 1,098 1,488 2,669 2010's 2,660 5,957 10,030 9,630 9,962 - = No Data Reported; -- = Not

  2. U.S. Associated-Dissolved Natural Gas, Wet After Lease Separation, Reserves

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

    Revision Decreases (Billion Cubic Feet) Decreases (Billion Cubic Feet) U.S. Associated-Dissolved Natural Gas, Wet After Lease Separation, Reserves Revision Decreases (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1970's 4,209 1980's 2,941 2,561 4,516 3,815 2,999 3,163 2,903 2,755 27,612 3,130 1990's 2,571 3,479 1,844 2,723 3,002 2,328 2,013 3,241 3,937 8,705 2000's 4,546 3,232 2,637 2,790 3,170 2,034 2,782 1,804 7,385 2,698 2010's 3,964

  3. U.S. Associated-Dissolved Natural Gas, Wet After Lease Separation, Reserves

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

    Revision Increases (Billion Cubic Feet) Increases (Billion Cubic Feet) U.S. Associated-Dissolved Natural Gas, Wet After Lease Separation, Reserves Revision Increases (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1970's 4,517 1980's 5,283 4,349 5,580 3,695 4,313 4,308 3,856 3,734 4,152 4,603 1990's 4,804 3,698 2,850 3,239 4,519 3,527 3,234 4,925 5,005 11,226 2000's 3,884 3,259 3,587 3,044 4,009 3,281 5,372 5,400 2,943 5,522 2010's 4,983

  4. U.S. Associated-Dissolved Natural Gas, Wet After Lease Separation, Reserves

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

    Sales (Billion Cubic Feet) Sales (Billion Cubic Feet) U.S. Associated-Dissolved Natural Gas, Wet After Lease Separation, Reserves Sales (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2000's 6,921 1,145 1,064 1,040 1,004 1,655 1,726 1,115 662 564 2010's 1,146 1,338 1,131 1,733 4,058 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 11/19/2015 Next Release

  5. U.S. Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved

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

    Reserves (Billion Cubic Feet) Proved Reserves (Billion Cubic Feet) U.S. Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1970's 59,425 1980's 62,010 61,546 62,082 61,694 60,638 60,607 59,577 58,189 32,878 32,809 1990's 33,169 31,817 31,424 30,045 30,400 30,797 30,795 32,382 30,660 31,415 2000's 29,833 29,824 29,541 28,552 27,649 28,236 29,640 32,668 29,023 33,383

  6. ,"Michigan Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)"

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

    Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Michigan Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)",1,"Annual",2014 ,"Release

  7. ,"Miscellaneous States Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)"

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

    Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Miscellaneous States Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)",1,"Annual",2014 ,"Release

  8. ,"Mississippi Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)"

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

    Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Mississippi Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)",1,"Annual",2014 ,"Release

  9. ,"Montana Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)"

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

    Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Montana Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)",1,"Annual",2014 ,"Release

  10. ,"Nebraska Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)"

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

    Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Nebraska Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)",1,"Annual",2013 ,"Release

  11. ,"New Mexico Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)"

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

    Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","New Mexico Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)",1,"Annual",2014 ,"Release

  12. ,"New York Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)"

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

    Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","New York Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)",1,"Annual",2014 ,"Release

  13. ,"North Dakota Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)"

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

    Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","North Dakota Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)",1,"Annual",2014 ,"Release

  14. ,"Ohio Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)"

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

    Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Ohio Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)",1,"Annual",2014 ,"Release

  15. ,"Oklahoma Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)"

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

    Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Oklahoma Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)",1,"Annual",2014 ,"Release

  16. ,"Pennsylvania Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)"

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

    Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Pennsylvania Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)",1,"Annual",2014 ,"Release

  17. ,"Texas Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)"

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

    Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Texas Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)",1,"Annual",2014 ,"Release

  18. ,"Utah Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)"

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

    Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Utah Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)",1,"Annual",2014 ,"Release

  19. ,"Wyoming Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)"

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

    Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Wyoming Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)",1,"Annual",2014 ,"Release

  20. ,"Alabama Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)"

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

    Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Alabama Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)",1,"Annual",2014 ,"Release

  1. ,"Alaska Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)"

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

    Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Alaska Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)",1,"Annual",2014 ,"Release

  2. ,"Arkansas Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)"

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

    Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Arkansas Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)",1,"Annual",2014 ,"Release

  3. ,"California Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)"

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

    Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","California Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)",1,"Annual",2014 ,"Release

  4. ,"Colorado Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)"

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

    Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Colorado Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)",1,"Annual",2014 ,"Release

  5. ,"Florida Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)"

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

    Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Florida Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)",1,"Annual",2014 ,"Release

  6. ,"Kansas Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)"

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

    Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Kansas Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)",1,"Annual",2014 ,"Release

  7. ,"Kentucky Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)"

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

    Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Kentucky Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)",1,"Annual",2014 ,"Release

  8. ,"Louisiana - North Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)"

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

    Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Louisiana - North Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)",1,"Annual",2014 ,"Release

  9. ,"Louisiana Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)"

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

    Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Louisiana Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)",1,"Annual",2014 ,"Release

  10. Effects of Total Dissolved Gas on Chum Salmon Fry Incubating in the Lower Columbia River

    SciTech Connect (OSTI)

    Arntzen, Evan V.; Hand, Kristine D.; Geist, David R.; Murray, Katherine J.; Panther, Jenny; Cullinan, Valerie I.; Dawley, Earl M.; Elston, Ralph A.

    2008-01-30

    This report describes research conducted by Pacific Northwest National Laboratory in FY 2007 for the U.S. Army Corps of Engineers, Portland District, to characterize the effects of total dissolved gas (TDG) on the incubating fry of chum salmon (Onchorhynchus keta) in the lower Columbia River. The tasks conducted and results obtained in pursuit of three objectives are summarized: * to conduct a field monitoring program at the Ives Island and Multnomah Falls study sites, collecting empirical data on TDG to obtain a more thorough understanding of TDG levels during different river stage scenarios (i.e., high-water year versus low-water year) * to conduct laboratory toxicity tests on hatchery chum salmon fry at gas levels likely to occur downstream from Bonneville Dam * to sample chum salmon sac fry during Bonneville Dam spill operations to determine if there is a physiological response to TDG levels. Chapter 1 discusses the field monitoring, Chapter 2 reports the findings of the laboratory toxicity tests, and Chapter 3 describes the field-sampling task. Each chapter contains an objective-specific introduction, description of the study site and methods, results of research, and discussion of findings. Literature cited throughout this report is listed in Chapter 4. Additional details on the study methdology and results are provided in Appendixes A through D.

  11. Effects of Dissolved Gas Supersaturation on Fish Residing in the Snake and Columbia Rivers, 1997 Annual Report.

    SciTech Connect (OSTI)

    Ryan, Brad A.

    1998-04-01

    Large amounts of spill at dams has commonly generated levels of dissolved gas supersaturation that are higher than levels established by state and federal agencies setting criteria for acceptable water quality in the Columbia and Snake Rivers. Large spill volumes are sometimes provided voluntarily to increase the proportion of migrating juvenile salmon that pass dams through nonturbine routes. However, total dissolved gas supersaturation (TDGS) resulting from spill in past decades has led to gas bubble disease (GBD) in fish. Therefore, during the period of high spill in 1997, the authors monitored the prevalence and severity of gas bubble disease by sampling resident fish in Ice Harbor reservoir and downstream from Ice Harbor and Bonneville Dams.

  12. Prediction of Total Dissolved Gas (TDG) at Hydropower Dams throughout the Columbia

    SciTech Connect (OSTI)

    Pasha, MD Fayzul K; Hadjerioua, Boualem; Stewart, Kevin M; Bender, Merlynn; Schneider, Michael L.

    2012-01-01

    The network of dams throughout the Columbia River Basin (CRB) are managed for irrigation, hydropower production, flood control, navigation, and fish passage that frequently result in both voluntary and involuntary spillway releases. The entrainment of air in spillway releases and the subsequent exchange of atmospheric gasses into solution during passage through the stilling basin cause elevated levels of total dissolved gas (TDG) saturation. Physical processes that affect TDG exchange at hydropower facilities have been characterized throughout the CRB in site-specific studies and at real-time water quality monitoring stations. These data have been used to develop predictive models of TDG exchange which are site specific and account for the fate of spillway and powerhouse flows in the tailrace channel and resultant transport and exchange in route to the downstream dam. Currently, there exists a need to summarize the findings from operational and structural TDG abatement programs conducted throughout the CRB and for the development of a generalized prediction model that pools data collected at multiple projects with similar structural attributes. A generalized TDG exchange model can be tuned to specific projects and coupled with water regulation models to allow for the formulation of optimal water regulation schedules subject to water quality constraints for TDG supersaturation. It is proposed to develop a methodology for predicting TDG levels downstream of hydropower facilities with similar structural properties as a function of a set of variables that affect TDG exchange; such as tailwater depth, spill discharge and pattern, project head, and entrainment of powerhouse releases.

  13. Total Dissolved Gas Effects on Incubating Chum Salmon Below Bonneville Dam

    SciTech Connect (OSTI)

    Arntzen, Evan V.; Hand, Kristine D.; Carter, Kathleen M.; Geist, David R.; Murray, Katherine J.; Dawley, Earl M.; Cullinan, Valerie I.; Elston, Ralph A.; Vavrinec, John

    2009-01-29

    At the request of the U.S. Army Corps of Engineers (USACE; Portland District), Pacific Northwest National Laboratory (PNNL) undertook a project in 2006 to look further into issues of total dissolved gas (TDG) supersaturation in the lower Columbia River downstream of Bonneville Dam. In FY 2008, the third year of the project, PNNL conducted field monitoring and laboratory toxicity testing to both verify results from 2007 and answer some additional questions about how salmonid sac fry respond to elevated TDG in the field and the laboratory. For FY 2008, three objectives were 1) to repeat the 2006-2007 field effort to collect empirical data on TDG from the Ives Island and Multnomah Falls study sites; 2) to repeat the static laboratory toxicity tests on hatchery chum salmon fry to verify 2007 results and to expose wild chum salmon fry to incremental increases in TDG, above those of the static test, until external symptoms of gas bubble disease were clearly present; and 3) to assess physiological responses to TDG levels in wild chum salmon sac fry incubating below Bonneville Dam during spill operations. This report summarizes the tasks conducted and results obtained in pursuit of the three objectives. Chapter 1 discusses the field monitoring, Chapter 2 reports the findings of the laboratory toxicity tests, and Chapter 3 describes the field-sampling task. Each chapter contains an objective-specific introduction, description of the study site and methods, results of research, and discussion of findings. Literature cited throughout this report is listed in Chapter 4. Additional details on the monitoring methodology and results are provided in Appendices A and B included on the compact disc bound inside the back cover of the printed version of this report.

  14. Estimating Adult Chinook Salmon Exposure to Dissolved Gas Supersaturation Downstream of Hydroelectric Dams Using Telemetry and Hydrodynamic Models

    SciTech Connect (OSTI)

    Johnson, Eric L.; Clabough, Tami S.; Peery, Christopher A.; Bennett, David H.; bjornn, Theodore C.; Caudill, Christopher C.; Richmond, Marshall C.

    2007-11-01

    Gas bubble disease (GBD) has been recognized for years as a potential problem for fishes in the Columbia River basin. GBD results from exposure to gas supersaturated water created by discharge over dam spillways. Spill typically creates a downstream plume of water with high total dissolved gas supersaturation (TDGS) that may be positioned along either shore or mid-channel, depending on dam operations. We obtained spatial data on fish migration paths and migration depths for 228 adult spring and summer Chinook salmon, Oncorhynchus tshawytscha, during 2000. Migration paths were compared to output from a two-dimensional hydrodynamic and dissolved gas model to estimate the potential for GBD expression and to test for behavioral avoidance of the high TDGS plume in unrestrained fish migrating under field conditions. Consistent with our previous estimates using single-location estimates of TDGS, we observed salmon swam sufficiently deep in the water column to receive complete hydrostatic compensation 95.9% of time spent in the Bonneville tailrace and 88.1% of the time in the Ice Harbor tailrace. The majority of depth uncompensated exposure occurred at TDGS levels > 115%. Adult spring and summer Chinook salmon tended to migrate near the shoreline. Adults moved into the high dissolved gas plume as often as they moved out of it downstream of Bonneville Dam, providing no evidence that adults moved laterally to avoid areas with elevated dissolved gas levels. The strong influence of dam operations on the position of the high-TDGS plume and shoreline-orientation behaviors of adults suggest that exposure of adult salmonids to high-TDGS conditions may be minimized using operational conditions that direct the plume mid-channel, particularly during periods of high discharge and spill. More generally, our approach illustrates the potential for combined field and modeling efforts to estimate the fine-scale environmental conditions encountered by fishes in natural and regulated rivers.

  15. Seasonal changes in dissolved-gas supersaturation in the Sacramento River and possible effects on striped bass

    SciTech Connect (OSTI)

    Colt, J.

    1984-09-01

    Dissolved-gad supersaturation levels were monitored in the Sacramento River system in central California during 1981-1982. Gas supersaturation was highest in the spring when temperature and flow were increasing rapidly, and was caused primarily by inflows of highly supersaturated water from the American and Feather rivers. During high runoff, air entrained by falls and rapids can produce supersaturation. Rapid heating can produce gas supersaturation because the solubility of gases is reduced at higher temperatures. Entrainment of air at dams does not appear to be responsible for gas supersaturation in these two rivers, although the dams may have an influence on dissolved gas levels in the Sacramento River. Gas supersaturation in the Sacramento-San Joaquin River system may adversely affect the eggs and larvae of wild striped bass Morone saxatilis and salmonids in hatcheries. The siting of salmonid hatcheries below large dams insures that hatchery fish will be exposed to high levels of gas supersaturation. Because larval striped bass are positively phototactic, they are at greater risk than fish that are found lower in the water column. 48 references, 4 figures, 3 tables.

  16. Migration depths of adult steelhead Oncorhynchus mykiss in relation to dissolved gas supersaturation in a regulated river system

    SciTech Connect (OSTI)

    Johnson, Eric L.; Clabough, Tami S.; Caudill, Christopher C.; keefer, matthew L.; Peery, Christopher A.; Richmond, Marshall C.

    2010-04-01

    Adult steelhead tagged with archival transmitters primarily migrated through a large river corridor at depths > 2 m, interspersed with frequent but short (< 5 min) periods closer to the surface. The recorded swimming depths and behaviours probably provided adequate hydrostatic compensation for the encountered supersaturated dissolved gas conditions and probably limited development of gas bubble disease (GBD). Results parallel those from a concurrent adult Chinook salmon study, except steelhead experienced greater seasonal variability and were more likely to have depth-uncompensated supersaturation exposure in some dam tailraces, perhaps explaining the higher incidence of GBD in this species.

  17. ,"U.S. Associated-Dissolved Natural Gas Proved Reserves, Wet After Lease Separation"

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

    Gas Proved Reserves, Wet After Lease Separation" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","U.S. Associated-Dissolved Natural Gas Proved Reserves, Wet After Lease Separation",10,"Annual",2014,"6/30/1979" ,"Release Date:","11/19/2015" ,"Next Release

  18. ,"U.S. Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)"

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

    Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","U.S. Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)",1,"Annual",2014 ,"Release Date:","11/19/2015" ,"Next Release

  19. ,"Gulf of Mexico Federal Offshore - Louisiana and Alabama Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)"

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

    Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Gulf of Mexico Federal Offshore - Louisiana and Alabama Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic

  20. Feasibility Study for Evaluating Cumulative Exposure of Downstream Migrant Juvenile Salmonids to Total Dissolved Gas. Final Report 1996.

    SciTech Connect (OSTI)

    Abernethy, C.Scott; Dauble, Dennis D.; Johnson, Robert L.

    1997-11-01

    A feasibility study was initiated to determine if downstream migrant salmonids could be monitored to determine potential relationships between total dissolved gas (TDG) exposure and signs of gas bubble trauma (GBT). The primary objectives were to: (1) establish logistical requirements for in-river monitoring of TDG exposure, including net pen design, deployment, and navigation constraints; (2) resolve uncertainties associated with effects of the net pen on fish behavior; (3) test the accuracy and precision of in-river monitoring equipment used to measure fish distribution and water quality; and (4) determine the application of hydrologic/flow models to predictions of TDG exposure. In-river measurements included water velocity, boat position, and selected water quality parameters (temperature, dissolved oxygen, pH, depth, conductivity). Fish distribution within the net pen was monitored using scanning sonar, and a split-beam echo sounder was used to evaluate vertical distribution of fish m in the river adjacent to the net pen. Three test drifts were conducted from late July through late August. The studies demonstrated that it was feasible to assemble and deploy a large net pen for mobile monitoring of TDG exposure. Accurate monitoring of vertical and lateral distribution of smolts was performed, and diel differences in behavior were documented. Further, the fish sounded in response to researcher activity on the perimeter platform. Thus, in-transit monitoring for GBT or mortality would affect fish depth distribution and exposure to TDG. Principal recommendations for future studies are directed at improving maneuverability of the net pen in adverse weather conditions and applying new acoustics technology to simultaneously collect fish distribution data from within and outside of the pen. 6 refs., 17 figs., 2 tabs.

  1. ,"Lower 48 States Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)"

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

    Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Lower 48 States Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)",1,"Annual",2014 ,"Release

  2. ,"New Mexico - East Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)"

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

    Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","New Mexico - East Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)",1,"Annual",2014 ,"Release

  3. ,"New Mexico - West Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)"

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

    Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","New Mexico - West Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)",1,"Annual",2014 ,"Release

  4. ,"Texas - RRC District 1 Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)"

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

    Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Texas - RRC District 1 Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)",1,"Annual",2014 ,"Release

  5. ,"Texas - RRC District 10 Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)"

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

    Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Texas - RRC District 10 Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)",1,"Annual",2014 ,"Release

  6. ,"Texas - RRC District 2 Onshore Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)"

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

    Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Texas - RRC District 2 Onshore Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)",1,"Annual",2014 ,"Release

  7. ,"Texas - RRC District 3 Onshore Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)"

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

    Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Texas - RRC District 3 Onshore Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)",1,"Annual",2014 ,"Release

  8. ,"Texas - RRC District 4 Onshore Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)"

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

    Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Texas - RRC District 4 Onshore Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)",1,"Annual",2014 ,"Release

  9. ,"Texas - RRC District 5 Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)"

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

    Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Texas - RRC District 5 Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)",1,"Annual",2014 ,"Release

  10. ,"Texas - RRC District 6 Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)"

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

    Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Texas - RRC District 6 Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)",1,"Annual",2014 ,"Release

  11. ,"Texas - RRC District 7B Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)"

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

    Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Texas - RRC District 7B Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)",1,"Annual",2014 ,"Release

  12. ,"Texas - RRC District 7C Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)"

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

    Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Texas - RRC District 7C Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)",1,"Annual",2014 ,"Release

  13. ,"Texas - RRC District 8 Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)"

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

    Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Texas - RRC District 8 Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)",1,"Annual",2014 ,"Release

  14. ,"Texas - RRC District 8A Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)"

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

    Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Texas - RRC District 8A Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)",1,"Annual",2014 ,"Release

  15. ,"Texas - RRC District 9 Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)"

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

    Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Texas - RRC District 9 Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)",1,"Annual",2014 ,"Release

  16. ,"Texas State Offshore Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)"

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

    Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Texas State Offshore Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)",1,"Annual",2014 ,"Release

  17. ,"U.S. Federal Offshore Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)"

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

    Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","U.S. Federal Offshore Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)",1,"Annual",2014 ,"Release

  18. ,"California - Coastal Region Onshore Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)"

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

    Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","California - Coastal Region Onshore Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)",1,"Annual",2014 ,"Release

  19. ,"California - Los Angeles Basin Onshore Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)"

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

    Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","California - Los Angeles Basin Onshore Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)",1,"Annual",2014

  20. ,"California - San Joaquin Basin Onshore Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)"

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

    Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","California - San Joaquin Basin Onshore Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)",1,"Annual",2014

  1. ,"California Federal Offshore Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)"

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

    Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","California Federal Offshore Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)",1,"Annual",2014 ,"Release

  2. ,"California State Offshore Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)"

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

    Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","California State Offshore Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)",1,"Annual",2014 ,"Release

  3. ,"Gulf of Mexico Federal Offshore - Texas Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)"

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

    Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Gulf of Mexico Federal Offshore - Texas Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)",1,"Annual",2014

  4. ,"Louisiana - South Onshore Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)"

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

    Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Louisiana - South Onshore Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)",1,"Annual",2014 ,"Release

  5. ,"Louisiana State Offshore Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)"

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

    Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Louisiana State Offshore Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)",1,"Annual",2014 ,"Release

  6. Laboratory Studies of the Effects of Pressure and Dissolved Gas Supersaturation on Turbine-Passed Fish

    SciTech Connect (OSTI)

    Abernethy, Cary S.; Amidan, Brett G.; Cada, G F.

    2001-03-23

    The objective of this study was to examine the relative importance of pressure changes as a source of turbine-passage injury and mortality. Specific tests were designed to quantify the response of fish to rapid pressure changes typical of turbine passage, with and without the complication of the fish being acclimated to gas supersaturated water. We investigated the responses of rainbow trout (Oncorhynchus mykiss), chinook salmon (O. tshawytscha), and bluegill sunfish (Lepomis macrochirus) to these two stresses, both singly and in combination.

  7. Defect Analysis of Vehicle Compressed Natural Gas Composite Cylinder |

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

    Department of Energy Defect Analysis of Vehicle Compressed Natural Gas Composite Cylinder Defect Analysis of Vehicle Compressed Natural Gas Composite Cylinder These slides were presented at the Onboard Storage Tank Workshop on April 29, 2010. PDF icon defectanalysis_naturalgas_ostw.pdf More Documents & Publications Safety analysis of in-use vehicle wrapping cylinder International Hydrogen Fuel and Pressure Vessel Forum 2010 Proceedings Type 4 Tank Testing, Certification and Field

  8. COMPOSITION OF LOW-REDSHIFT HALO GAS

    SciTech Connect (OSTI)

    Cen Renyue

    2013-06-20

    Halo gas in low-z (z < 0.5) {>=}0.1 L{sub *} galaxies in high-resolution, large-scale cosmological hydrodynamic simulations is examined with respect to three components: cold, warm, and hot with temperatures of <10{sup 5}, 10{sup 5-6}, and >10{sup 6} K, respectively. Utilizing O VI {lambda}{lambda}1032, 1038 absorption lines, the warm component is compared to observations, and agreement is found with respect to the galaxy-O VI line correlation, the ratio of the O VI line incidence rate in blue to red galaxies, and the amount of O VI mass in star-forming galaxies. A detailed account of the sources of warm halo gas (stellar feedback heating, gravitational shock heating, and accretion from the intergalactic medium), inflowing and outflowing warm halo gas metallicity disparities, and their dependencies on galaxy types and environment is also presented. With the warm component securely anchored, our simulations make the following additional predictions. First, cold gas is the primary component in inner regions with its mass comprising 50% of all gas within galactocentric radius r = (30, 150) kpc in (red, blue) galaxies. Second, at r > (30, 200) kpc in (red, blue) galaxies the hot component becomes the majority. Third, the warm component is a perpetual minority, with its contribution peaking at {approx}30% at r = 100-300 kpc in blue galaxies and never exceeding 5% in red galaxies. The significant amount of cold gas in low-z early-type galaxies, which was found in simulations and in agreement with recent observations (Thom et al.), is intriguing, as is the dominance of hot gas at large radii in blue galaxies.

  9. Fish Individual-based Numerical Simulator (FINS): A particle-based model of juvenile salmonid movement and dissolved gas exposure history in the Columbia River Basin

    SciTech Connect (OSTI)

    Scheibe, Timothy D.; Richmond, Marshall C.

    2002-01-30

    This paper describes a numerical model of juvenile salmonid migration in the Columbia and Snake Rivers. The model, called the Fish Individual-based Numerical Simulator or FINS, employs a discrete, particle-based approach to simulate the migration and history of exposure to dissolved gases of individual fish. FINS is linked to a two-dimensional (vertically-averaged) hydrodynamic simulator that quantifies local water velocity, temperature, and dissolved gas levels as a function of river flow rates and dam operations. Simulated gas exposure histories can be input to biological mortality models to predict the effects of various river configurations on fish injury and mortality due to dissolved gas supersaturation. Therefore, FINS serves as a critical linkage between hydrodynamic models of the river system and models of biological impacts. FINS was parameterized and validated based on observations of individual fish movements collected using radiotelemetry methods during 1997 and 1998. A quasi-inverse approach was used to decouple fish swimming movements from advection with the local water velocity, allowing inference of time series of non-advective displacements of individual fish from the radiotelemetry data. Statistical analyses of these displacements are presented, and confirm that strong temporal correlation of fish swimming behavior persists in some cases over several hours. A correlated random-walk model was employed to simulate the observed migration behavior, and parameters of the model were estimated that lead to close correspondence between predictions and observations.

  10. Electrolytic dissolver

    DOE Patents [OSTI]

    Wheelwright, E.J.; Fox, R.D.

    1975-08-26

    This patent related to an electrolytic dissolver wherein dissolution occurs by solution contact including a vessel of electrically insulative material, a fixed first electrode, a movable second electrode, means for insulating the electrodes from the material to be dissolved while permitting a free flow of electrolyte therebetween, means for passing a direct current between the electrodes and means for circulating electrolyte through the dissolver. (auth)

  11. Effects of shielding gas compositions on arc plasma and metal transfer in gas metal arc welding

    SciTech Connect (OSTI)

    Rao, Z. H.; Liao, S. M.; Tsai, H. L.

    2010-02-15

    This article presents the effects of shielding gas compositions on the transient transport phenomena, including the distributions of temperature, flow velocity, current density, and electromagnetic force in the arc and the metal, and arc pressure in gas metal arc welding of mild steel at a constant current input. The shielding gas considered includes pure argon, 75% Ar, 50% Ar, and 25% Ar with the balance of helium. It is found that the shielding gas composition has significant influences on the arc characteristics; droplet formation, detachment, transfer, and impingement onto the workpiece; and weld pool dynamics and weld bead profile. As helium increases in the shielding gas, the droplet size increases but the droplet detachment frequency decreases. For helium-rich gases, the current converges at the workpiece with a 'ring' shape which produces non-Gaussian-like distributions of arc pressure and temperature along the workpiece surface. Detailed explanations to the physics of the very complex but interesting transport phenomena are given.

  12. Field testing the Raman gas composition sensor for gas turbine operation

    SciTech Connect (OSTI)

    Buric, M.; Chorpening, B.; Mullem, J.; Ranalli, J.; Woodruff, S.

    2012-01-01

    A gas composition sensor based on Raman spectroscopy using reflective metal lined capillary waveguides is tested under field conditions for feed-forward applications in gas turbine control. The capillary waveguide enables effective use of low powered lasers and rapid composition determination, for computation of required parameters to pre-adjust burner control based on incoming fuel. Tests on high pressure fuel streams show sub-second time response and better than one percent accuracy on natural gas fuel mixtures. Fuel composition and Wobbe constant values are provided at one second intervals or faster. The sensor, designed and constructed at NETL, is packaged for Class I Division 2 operations typical of gas turbine environments, and samples gas at up to 800 psig. Simultaneous determination of the hydrocarbons methane, ethane, and propane plus CO, CO2, H2O, H2, N2, and O2 are realized. The capillary waveguide permits use of miniature spectrometers and laser power of less than 100 mW. The capillary dimensions of 1 m length and 300 μm ID also enable a full sample exchange in 0.4 s or less at 5 psig pressure differential, which allows a fast response to changes in sample composition. Sensor operation under field operation conditions will be reported.

  13. Melt Infiltrated Ceramic Composites (Hipercomp) for Gas Turbine Engine Applications

    SciTech Connect (OSTI)

    Gregory Corman; Krishan Luthra

    2005-09-30

    This report covers work performed under the Continuous Fiber Ceramic Composites (CFCC) program by GE Global Research and its partners from 1994 through 2005. The processing of prepreg-derived, melt infiltrated (MI) composite systems based on monofilament and multifilament tow SiC fibers is described. Extensive mechanical and environmental exposure characterizations were performed on these systems, as well as on competing Ceramic Matrix Composite (CMC) systems. Although current monofilament SiC fibers have inherent oxidative stability limitations due to their carbon surface coatings, the MI CMC system based on multifilament tow (Hi-Nicalon ) proved to have excellent mechanical, thermal and time-dependent properties. The materials database generated from the material testing was used to design turbine hot gas path components, namely the shroud and combustor liner, utilizing the CMC materials. The feasibility of using such MI CMC materials in gas turbine engines was demonstrated via combustion rig testing of turbine shrouds and combustor liners, and through field engine tests of shrouds in a 2MW engine for >1000 hours. A unique combustion test facility was also developed that allowed coupons of the CMC materials to be exposed to high-pressure, high-velocity combustion gas environments for times up to {approx}4000 hours.

  14. Acid gas scrubbing by composite solvent-swollen membranes

    DOE Patents [OSTI]

    Matson, Stephen L.; Lee, Eric K. L.; Friesen, Dwayne T.; Kelly, Donald J.

    1988-01-01

    A composite immobilized liquid membrane suitable for acid gas scrubbing is disclosed. The membrane is a solvent-swollen polymer and a microporous polymeric support, the solvent being selected from a class of highly polar solvents containing at least one atom selected from nitrogen, oxygen, phosphorous and sulfur, and having a boiling point of at least 100.degree. C. and a solubility parameter of from about 7.5 to about 13.5 (cal/cm.sup.3 -atm).sup.1/2. Such solvents are homogeneously distributed through the solvent-swollen polymer from 20% to 95% by weight. Also disclosed are methods of acid gas scrubbing of high- and low-Btu gas effluents with such solvent-swollen membranes.

  15. Acid gas scrubbing by composite solvent-swollen membranes

    DOE Patents [OSTI]

    Matson, S.L.; Lee, E.K.L.; Friesen, D.T.; Kelly, D.J.

    1988-04-12

    A composite immobilized liquid membrane suitable for acid gas scrubbing is disclosed. The membrane is a solvent-swollen polymer and a microporous polymeric support, the solvent being selected from a class of highly polar solvents containing at least one atom selected from nitrogen, oxygen, phosphorus and sulfur, and having a boiling point of at least 100 C and a solubility parameter of from about 7.5 to about 13.5 (cal/cm[sup 3]-atm)[sup 1/2]. Such solvents are homogeneously distributed through the solvent-swollen polymer from 20% to 95% by weight. Also disclosed are methods of acid gas scrubbing of high- and low-Btu gas effluents with such solvent-swollen membranes. 3 figs.

  16. Simulated Passage Through A Modified Kaplan Turbine Pressure Regime: A Supplement to "Laboratory Studies of the Effects of Pressure and Dissolved Gas Supersaturation on Turbine-Passed Fish"

    SciTech Connect (OSTI)

    Abernethy, Cary S.; Amidan, Brett G.; Cada, G. F.

    2002-03-15

    Migratory and resident fish in the Columbia River basin are exposed to stresses associated with hydroelectric power production, including pressure changes during turbine passage and dissolved gas supersaturation (resulting from the release of water from the spillway). The responses of fall Chinook salmon and bluegill sunfish to these two stresses, both singly and in combination, were investigated in the laboratory. A previous test series (Abernethy et al. 2001) evaluated the effects of passage through a Kaplan turbine under the ?worst case? pressure conditions. For this series of tests, pressure changes were modified to simulate passage through a Kaplan turbine under a more ?fish-friendly? mode of operation. The results were compared to results from Abernethy et al. (2001). Fish were exposed to total dissolved gas (TDG) levels of 100%, 120%, or 135% of saturation for 16-22 hours at either surface (101 kPa) or 30 ft (191 kPa) of pressure, then held at surface pressure at 100% saturation for a 48-hour observation period. Sensitivity of fall Chinook salmon to gas supersaturation was slightly higher than in the previous test series, with 15% mortality for surface-acclimated fish at 120% TDG, compared to 0% in the previous tests.

  17. Gas separation by composite solvent-swollen membranes

    DOE Patents [OSTI]

    Matson, S.L.; Lee, E.K.L.; Friesen, D.T.; Kelly, D.J.

    1989-04-25

    There is disclosed a composite immobilized liquid membrane of a solvent-swollen polymer and a microporous organic or inorganic support, the solvent being at least one highly polar solvent containing at least one nitrogen, oxygen, phosphorus or sulfur atom, and having a boiling point of at least 100 C and a specified solubility parameter. The solvent or solvent mixture is homogeneously distributed through the solvent-swollen polymer from 20% to 95% by weight. The membrane is suitable for acid gas scrubbing and oxygen/nitrogen separation. 3 figs.

  18. Gas separation by composite solvent-swollen membranes

    DOE Patents [OSTI]

    Matson, Stephen L.; Lee, Eric K. L.; Friesen, Dwayne T.; Kelly, Donald J.

    1989-01-01

    There is disclosed a composite immobulized liquid membrane of a solvent-swollen polymer and a microporous organic or inorganic support, the solvent being at least one highly polar solvent containing at least one nitrogen, oxygen, phosphorous or sulfur atom, and having a boiling point of at least 100.degree. C. and a specified solubility parameter. The solvent or solvent mixture is homogeneously distributed through the solvent-swollen polymer from 20% to 95% by weight. The membrane is suitable for acid gas scrubbing and oxygen/nitrogen separation.

  19. Magnetic roller gas gate employing transonic sweep gas flow to isolate regions of differing gaseous composition or pressure

    DOE Patents [OSTI]

    Doehler, Joachim

    1994-12-20

    Disclosed herein is an improved gas gate for interconnecting regions of differing gaseous composition and/or pressure. The gas gate includes a narrow, elongated passageway through which substrate material is adapted to move between said regions and inlet means for introducing a flow of non-contaminating sweep gas into a central portion of said passageway. The gas gate is characterized in that the height of the passageway and the flow rate of the sweep gas therethrough provides for transonic flow of the sweep gas between the inlet means and at least one of the two interconnected regions, thereby effectively isolating one region, characterized by one composition and pressure, from another region, having a differing composition and/or pressure, by decreasing the mean-free-path length between collisions of diffusing species within the transonic flow region. The gas gate preferably includes a manifold at the juncture point where the gas inlet means and the passageway interconnect.

  20. Microemulsion impregnated catalyst composite and use thereof in a synthesis gas conversion process

    DOE Patents [OSTI]

    Abrevaya, Hayim; Targos, William M.

    1987-01-01

    A catalyst composition for synthesis gas conversion comprising a ruthenium metal component deposited on a support carrier wherein the average metal particle size is less than about 100 A. The method of manufacture of the composition via a reverse micelle impregnation technique and the use of the composition in a Fischer-Tropsch conversion process is also disclosed.

  1. Microemulsion impregnated catalyst composite and use thereof in a synthesis gas conversion process

    DOE Patents [OSTI]

    Abrevaya, H.; Targos, W.M.

    1987-12-22

    A catalyst composition is described for synthesis gas conversion comprising a ruthenium metal component deposited on a support carrier wherein the average metal particle size is less than about 100 A. The method of manufacture of the composition via a reverse micelle impregnation technique and the use of the composition in a Fischer-Tropsch conversion process is also disclosed.

  2. Ceramic-zeolite Composite Membranes and Use for Separation of Vapor-gas

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

    Mixtures - Energy Innovation Portal Industrial Technologies Industrial Technologies Advanced Materials Advanced Materials Find More Like This Return to Search Ceramic-zeolite Composite Membranes and Use for Separation of Vapor-gas Mixtures University of Colorado Contact CU About This Technology Technology Marketing SummaryHaving both high selectivity and high permeability, the zeolite membranes have great potential for highly selective separation of vapor/gas and gas/gas mixtures and for

  3. Method and apparatus for off-gas composition sensing

    SciTech Connect (OSTI)

    Ottesen, D.K.; Allendorf, S.W.; Hubbard, G.L.; Rosenberg, D.E.

    1999-11-16

    An apparatus and method for non-intrusive collection of off-gas data in a steelmaking furnace includes structure and steps for transmitting a laser beam through the off-gas produced by a steelmaking furnace, for controlling the transmitting to repeatedly scan the laser beam through a plurality of wavelengths in its tuning range, and for detecting the laser beam transmitted through the off-gas and converting the detected laser beam to an electrical signal. The electrical signal is processed to determine characteristics of the off-gas that are used to analyze and/or control the steelmaking process.

  4. Method and apparatus for off-gas composition sensing

    DOE Patents [OSTI]

    Ottesen, David Keith (Livermore, CA); Allendorf, Sarah Williams (Fremont, CA); Hubbard, Gary Lee (Richmond, CA); Rosenberg, David Ezechiel (Columbia, MD)

    1999-01-01

    An apparatus and method for non-intrusive collection of off-gas data in a steelmaking furnace includes structure and steps for transmitting a laser beam through the off-gas produced by a steelmaking furnace, for controlling the transmitting to repeatedly scan the laser beam through a plurality of wavelengths in its tuning range, and for detecting the laser beam transmitted through the off-gas and converting the detected laser beam to an electrical signal. The electrical signal is processed to determine characteristics of the off-gas that are used to analyze and/or control the steelmaking process.

  5. Use of high temperature insulation for ceramic matrix composites in gas turbines

    DOE Patents [OSTI]

    Morrison, Jay Alan; Merrill, Gary Brian; Ludeman, Evan McNeil; Lane, Jay Edgar

    2001-01-01

    A ceramic composition for insulating components, made of ceramic matrix composites, of gas turbines is provided. The composition comprises a plurality of hollow oxide-based spheres of various dimensions, a phosphate binder, and at least one oxide filler powder, whereby the phosphate binder partially fills gaps between the spheres and the filler powders. The spheres are situated in the phosphate binder and the filler powders such that each sphere is in contact with at least one other sphere and the arrangement of spheres is such that the composition is dimensionally stable and chemically stable at a temperature of approximately 1600.degree. C. A stationary vane of a gas turbine comprising the composition of the present invention bonded to the outer surface of the vane is provided. A combustor comprising the composition bonded to the inner surface of the combustor is provided. A transition duct comprising the insulating coating bonded to the inner surface of the transition is provided. Because of abradable properties of the composition, a gas turbine blade tip seal comprising the composition also is provided. The composition is bonded to the inside surface of a shroud so that a blade tip carves grooves in the composition so as to create a customized seal for the turbine blade tip.

  6. Method and apparatus for real-time measurement of fuel gas compositions and heating values

    DOE Patents [OSTI]

    Zelepouga, Serguei; Pratapas, John M.; Saveliev, Alexei V.; Jangale, Vilas V.

    2016-03-22

    An exemplary embodiment can be an apparatus for real-time, in situ measurement of gas compositions and heating values. The apparatus includes a near infrared sensor for measuring concentrations of hydrocarbons and carbon dioxide, a mid infrared sensor for measuring concentrations of carbon monoxide and a semiconductor based sensor for measuring concentrations of hydrogen gas. A data processor having a computer program for reducing the effects of cross-sensitivities of the sensors to components other than target components of the sensors is also included. Also provided are corresponding or associated methods for real-time, in situ determination of a composition and heating value of a fuel gas.

  7. Reactant gas composition for fuel cell potential control

    DOE Patents [OSTI]

    Bushnell, Calvin L.; Davis, Christopher L.

    1991-01-01

    A fuel cell (10) system in which a nitrogen (N.sub.2) gas is used on the anode section (11) and a nitrogen/oxygen (N.sub.2 /O.sub.2) gaseous mix is used on the cathode section (12) to maintain the cathode at an acceptable voltage potential during adverse conditions occurring particularly during off-power conditions, for example, during power plant shutdown, start-up and hot holds. During power plant shutdown, the cathode section is purged with a gaseous mixture of, for example, one-half percent (0.5%) oxygen (O.sub.2) and ninety-nine and a half percent (99.5%) nitrogen (N.sub.2) supplied from an ejector (21) bleeding in air (24/28) into a high pressure stream (27) of nitrogen (N.sub.2) as the primary or majority gas. Thereafter the fuel gas in the fuel processor (31) and the anode section (11) is purged with nitrogen gas to prevent nickel (Ni) carbonyl from forming from the shift catalyst. A switched dummy electrical load (30) is used to bring the cathode potential down rapidly during the start of the purges. The 0.5%/99.5% O.sub.2 /N.sub.2 mixture maintains the cathode potential between 0.3 and 0.7 volts, and this is sufficient to maintain the cathode potential at 0.3 volts for the case of H.sub.2 diffusing to the cathode through a 2 mil thick electrolyte filled matrix and below 0.8 volts for no diffusion at open circuit conditions. The same high pressure gas source (20) is used via a "T" juncture ("T") to purge the anode section and its associated fuel processor (31).

  8. Freeze drying for gas chromatography stationary phase deposition

    DOE Patents [OSTI]

    Sylwester, Alan P.

    2007-01-02

    The present disclosure relates to methods for deposition of gas chromatography (GC) stationary phases into chromatography columns, for example gas chromatography columns. A chromatographic medium is dissolved or suspended in a solvent to form a composition. The composition may be inserted into a chromatographic column. Alternatively, portions of the chromatographic column may be exposed or filled with the composition. The composition is permitted to solidify, and at least a portion of the solvent is removed by vacuum sublimation.

  9. FLOWSHEET EVALUATION FOR THE DISSOLVING AND NEUTRALIZATION OF...

    Office of Scientific and Technical Information (OSTI)

    USED NUCLEAR FUEL This report includes the literature review, hydrogen off-gas calculations, and hydrogen generation tests to determine that H-Canyon can safely dissolve the ...

  10. ,"Federal Offshore, Gulf of Mexico, Texas Associated-Dissolved...

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

    Of Series","Frequency","Latest Data for" ,"Data 1","Federal Offshore, Gulf of Mexico, Texas Associated-Dissolved Natural Gas Proved Reserves, Wet After Lease...

  11. Separation of gases through gas enrichment membrane composites

    DOE Patents [OSTI]

    Swedo, Raymond J.; Kurek, Paul R.

    1988-01-01

    Thin film composite membranes having as a permselective layer a film of a homopolymer of certain vinyl alkyl ethers are useful in the separation of various gases. Such homopolymers have a molecular weight of greater than 30,000 and the alkyl group of the vinyl alkyl monomer has from 4 to 20 carbon atoms with branching within the alkyl moiety at least at the carbon atom bonded to the ether oxygen or at the next adjacent carbon atom. These membranes show excellent hydrolytic stability, especially in the presence of acidic or basic gaseous components.

  12. Separation of gases through gas enrichment membrane composites

    DOE Patents [OSTI]

    Swedo, R.J.; Kurek, P.R.

    1988-07-19

    Thin film composite membranes having as a permselective layer a film of a homopolymer of certain vinyl alkyl ethers are useful in the separation of various gases. Such homopolymers have a molecular weight of greater than 30,000 and the alkyl group of the vinyl alkyl monomer has from 4 to 20 carbon atoms with branching within the alkyl moiety at least at the carbon atom bonded to the ether oxygen or at the next adjacent carbon atom. These membranes show excellent hydrolytic stability, especially in the presence of acidic or basic gaseous components.

  13. Development of ceramic composite hot-gas filters

    SciTech Connect (OSTI)

    Judkins, R.R.; Stinton, D.P.; Smith, R.G.; Fischer, E.M.; Eaton, J.H.; Weaver, B.L.; Kahnke, J.L.; Pysher, D.J.

    1995-04-01

    A novel type of hot-gas filter based on a ceramic fiber-reinforced ceramic matrix was developed and extended to fullsize, 60-mm OD by 1.5-meter-long, candle filters. A commercially viable process for producing the filters was developed, and the filters are undergoing testing and demonstration throughout the world for applications in pressurized fluidized-bed combustion (PFBC) and integrated gasification combined cycle (IGCC) plants. Development activities at Oak Ridge National Laboratory (ORNL) and at the 3M Company, and testing at the Westinghouse Science and Technology Center (STC) are presented. Demonstration tests at the Tidd PFBC are underway. Issues identified during the testing and demonstration phases of the development are discussed. Resolution of the issues and the status of commercialization of the filters are described.

  14. Rural biogas technology: effect of digester pressure on gas rate and composition

    SciTech Connect (OSTI)

    Hamad, M.A.; Abdel, Dayem, A.M.; El-Halwagi, M.M.

    1983-01-01

    The effect of digester pressure on gas rate and composition was studied using an experimental Chinese-type digester of 5 m/sup 3/ volume. Water buffalo dung was used as feedstock and was fermented at 40 days retention time. The increase in digester pressure was accompanied by a decrease in the amount of biogas produced. However, this decrease was partially compensated for by the increase in methane content. The latter may be attributed to the transfer of carbon dioxide from the gas phase to the liquid phase. The remainder of the noted decrease in the obtained gas amount was related to the increase of the nonconfined amount of slurry in the outlet chamber. Thus, it can be concluded that the initial amount of gas liberated was not a direct consequence of varying the digester pressure. A modified design for the outlet chamber is proposed. Such modification is anticipated to decrease the gas losses, partially stabilize the gas pressure and accordingly increase the efficiency of the digester operation as well as the gas combustion process.

  15. Method of making a continuous ceramic fiber composite hot gas filter

    DOE Patents [OSTI]

    Hill, Charles A.; Wagner, Richard A.; Komoroski, Ronald G.; Gunter, Greg A.; Barringer, Eric A.; Goettler, Richard W.

    1999-01-01

    A ceramic fiber composite structure particularly suitable for use as a hot gas cleanup ceramic fiber composite filter and method of making same from ceramic composite material has a structure which provides for increased strength and toughness in high temperature environments. The ceramic fiber composite structure or filter is made by a process in which a continuous ceramic fiber is intimately surrounded by discontinuous chopped ceramic fibers during manufacture to produce a ceramic fiber composite preform which is then bonded using various ceramic binders. The ceramic fiber composite preform is then fired to create a bond phase at the fiber contact points. Parameters such as fiber tension, spacing, and the relative proportions of the continuous ceramic fiber and chopped ceramic fibers can be varied as the continuous ceramic fiber and chopped ceramic fiber are simultaneously formed on the porous vacuum mandrel to obtain a desired distribution of the continuous ceramic fiber and the chopped ceramic fiber in the ceramic fiber composite structure or filter.

  16. Dissolver vessel bottom assembly

    DOE Patents [OSTI]

    Kilian, Douglas C.

    1976-01-01

    An improved bottom assembly is provided for a nuclear reactor fuel reprocessing dissolver vessel wherein fuel elements are dissolved as the initial step in recovering fissile material from spent fuel rods. A shock-absorbing crash plate with a convex upper surface is disposed at the bottom of the dissolver vessel so as to provide an annular space between the crash plate and the dissolver vessel wall. A sparging ring is disposed within the annular space to enable a fluid discharged from the sparging ring to agitate the solids which deposit on the bottom of the dissolver vessel and accumulate in the annular space. An inlet tangential to the annular space permits a fluid pumped into the annular space through the inlet to flush these solids from the dissolver vessel through tangential outlets oppositely facing the inlet. The sparging ring is protected against damage from the impact of fuel elements being charged to the dissolver vessel by making the crash plate of such a diameter that the width of the annular space between the crash plate and the vessel wall is less than the diameter of the fuel elements.

  17. TiO{sub 2}/PANI And MWNT/PANI Composites Thin Films For Hydrogen Gas Sensing

    SciTech Connect (OSTI)

    Srivastava, Subodh; Kumar, Sumit; Agrawal, Shweta; Saxena, Arpita; Choudhary, B. L.; Mathur, Shubhra; Singh, M.; Vijay, Y. K.

    2010-12-01

    The MWNT and TiO{sub 2} doped Polyaniline (PANI) composites were synthesized by In-situ chemical oxidative polymerization method at low temperature. The MWNT/PANI and TiO{sub 2}/PANI composite thin films were prepared using spin coating method onto finger type interdigited electrodes to develop the chemiresistor type gas sensor for hydrogen gas sensing application. It was observed that the MWNT and TiO{sub 2} doped PANI composite thin films show a higher response in comparision to neat PANI. The structural and morphological properties of these composite films were characterized by X-Ray differaction (XRD) pattern and sccaning electrone microscopy (SEM) respectively.

  18. FLOWSHEET EVALUATION FOR THE DISSOLVING AND NEUTRALIZATION OF SODIUM

    Office of Scientific and Technical Information (OSTI)

    REACTOR EXPERIMENT USED NUCLEAR FUEL (Technical Report) | SciTech Connect FLOWSHEET EVALUATION FOR THE DISSOLVING AND NEUTRALIZATION OF SODIUM REACTOR EXPERIMENT USED NUCLEAR FUEL Citation Details In-Document Search Title: FLOWSHEET EVALUATION FOR THE DISSOLVING AND NEUTRALIZATION OF SODIUM REACTOR EXPERIMENT USED NUCLEAR FUEL This report includes the literature review, hydrogen off-gas calculations, and hydrogen generation tests to determine that H-Canyon can safely dissolve the Sodium

  19. Thermal-shock behavior of advanced ceramic/composite hot-gas filters

    SciTech Connect (OSTI)

    Singh, J.P.; Sutaria, M.; Bielke, W.

    1997-02-01

    The thermal shock/fatigue behavior of monolithic and composite hot-gas candle filters obtained from various manufacturers was evaluated. The composite filters were made of both oxide and nonoxide materials; the monolithic filters were made only of nonoxide materials. During single-cycle thermal shock tests, composite filters show little or no strength degradation when quenched from temperatures between 900 and 1000{degrees}C. At higher quenching temperatures, slow strength degradation was observed. Regular monolithic SiC filters showed no strength degradation when quenched from temperatures up to {approx}700-900{degrees}C, whereas at higher quenching temperatures, the strength decreased at a relatively sharper rate. On the other hand, recrystallized monolithic SiC filters showed higher initial strength and retained this strength to higher quenching temperatures when compared with regular SiC filters. This finding may be related to the difference in the strength of grain boundary phases in the two filters. For thermal cycles between room temperature and 800-1000{degrees}C, composite filters show little (18-24%) strength degradation up to three cycles, beyond which the strength remains unchanged. Similar behavior, with an initial strength drop of 15-28%, was observed for monolithic filter specimens that were thermally cycled between room temperature and 800{degrees}C.

  20. Melt Infiltrated Ceramic Matrix Composites for Shrouds and Combustor Liners of Advanced Industrial Gas Turbines

    SciTech Connect (OSTI)

    Gregory Corman; Krishan Luthra; Jill Jonkowski; Joseph Mavec; Paul Bakke; Debbie Haught; Merrill Smith

    2011-01-07

    This report covers work performed under the Advanced Materials for Advanced Industrial Gas Turbines (AMAIGT) program by GE Global Research and its collaborators from 2000 through 2010. A first stage shroud for a 7FA-class gas turbine engine utilizing HiPerComp{reg_sign}* ceramic matrix composite (CMC) material was developed. The design, fabrication, rig testing and engine testing of this shroud system are described. Through two field engine tests, the latter of which is still in progress at a Jacksonville Electric Authority generating station, the robustness of the CMC material and the shroud system in general were demonstrated, with shrouds having accumulated nearly 7,000 hours of field engine testing at the conclusion of the program. During the latter test the engine performance benefits from utilizing CMC shrouds were verified. Similar development of a CMC combustor liner design for a 7FA-class engine is also described. The feasibility of using the HiPerComp{reg_sign} CMC material for combustor liner applications was demonstrated in a Solar Turbines Ceramic Stationary Gas Turbine (CSGT) engine test where the liner performed without incident for 12,822 hours. The deposition processes for applying environmental barrier coatings to the CMC components were also developed, and the performance of the coatings in the rig and engine tests is described.

  1. Process for coal liquefaction in staged dissolvers

    DOE Patents [OSTI]

    Roberts, George W.; Givens, Edwin N.; Skinner, Ronald W.

    1983-01-01

    There is described an improved liquefaction process by which coal is converted to a low ash and low sulfur carbonaceous material that can be used as a fuel in an environmentally acceptable manner without costly gas scrubbing equipment. In the process, coal is slurried with a pasting oil, passed through a preheater and at least two dissolvers in series in the presence of hydrogen-rich gases at elevated temperatures and pressures. Solids, including mineral ash and unconverted coal macerals, are separated from the condensed reactor effluent. In accordance with the improved process, the first dissolver is operated at a higher temperature than the second dissolver. This temperature sequence produces improved product selectivity and permits the incorporation of sufficient hydrogen in the solvent for adequate recycle operations.

  2. Nondestructive characterization of ceramic composites used as combustor liners in advanced gas turbines

    SciTech Connect (OSTI)

    Ellingson, W.A.; Rothermel, S.A.; Simpson, J.F.

    1996-07-01

    Nondestructive characterization (NDC) methods, which can provide full-field information about components prior to and during use, are critical to the reliable application of continuous fiber ceramic matrix composites in high-firing-temperature (>1,350 C) gas turbines. [For combustor liners, although they are nonmechanical load-bearing components, both thermal characteristics and mechanical integrity are vitally important.] NDC methods being developed to provide necessary information include x-ray computed tomography (mainly for through-wall density and delamination detection), infrared-based thermal diffusivity imaging, and single-wall through-transmission x-ray imaging (mainly for fiber content and alignment detection). Correlation of the data obtained from NDC methods with subscale combustor liner tests have shown positive results at thermal cycling temperatures from 700 C to 1,177 C.

  3. Industrial Compositional Streamline Simulation for Efficient and Accurate Prediction of Gas Injection and WAG Processes

    SciTech Connect (OSTI)

    Margot Gerritsen

    2008-10-31

    Gas-injection processes are widely and increasingly used for enhanced oil recovery (EOR). In the United States, for example, EOR production by gas injection accounts for approximately 45% of total EOR production and has tripled since 1986. The understanding of the multiphase, multicomponent flow taking place in any displacement process is essential for successful design of gas-injection projects. Due to complex reservoir geometry, reservoir fluid properties and phase behavior, the design of accurate and efficient numerical simulations for the multiphase, multicomponent flow governing these processes is nontrivial. In this work, we developed, implemented and tested a streamline based solver for gas injection processes that is computationally very attractive: as compared to traditional Eulerian solvers in use by industry it computes solutions with a computational speed orders of magnitude higher and a comparable accuracy provided that cross-flow effects do not dominate. We contributed to the development of compositional streamline solvers in three significant ways: improvement of the overall framework allowing improved streamline coverage and partial streamline tracing, amongst others; parallelization of the streamline code, which significantly improves wall clock time; and development of new compositional solvers that can be implemented along streamlines as well as in existing Eulerian codes used by industry. We designed several novel ideas in the streamline framework. First, we developed an adaptive streamline coverage algorithm. Adding streamlines locally can reduce computational costs by concentrating computational efforts where needed, and reduce mapping errors. Adapting streamline coverage effectively controls mass balance errors that mostly result from the mapping from streamlines to pressure grid. We also introduced the concept of partial streamlines: streamlines that do not necessarily start and/or end at wells. This allows more efficient coverage and avoids the redundant work generally done in the near-well regions. We improved the accuracy of the streamline simulator with a higher order mapping from pressure grid to streamlines that significantly reduces smoothing errors, and a Kriging algorithm is used to map from the streamlines to the background grid. The higher accuracy of the Kriging mapping means that it is not essential for grid blocks to be crossed by one or more streamlines. The higher accuracy comes at the price of increased computational costs, but allows coarser coverage and so does not generally increase the overall costs of the computations. To reduce errors associated with fixing the pressure field between pressure updates, we developed a higher order global time-stepping method that allows the use of larger global time steps. Third-order ENO schemes are suggested to propagate components along streamlines. Both in the two-phase and three-phase experiments these ENO schemes outperform other (higher order) upwind schemes. Application of the third order ENO scheme leads to overall computational savings because the computational grid used can be coarsened. Grid adaptivity along streamlines is implemented to allow sharp but efficient resolution of solution fronts at reduced computational costs when displacement fronts are sufficiently separated. A correction for Volume Change On Mixing (VCOM) is implemented that is very effective at handling this effect. Finally, a specialized gravity operator splitting method is proposed for use in compositional streamline methods that gives an effective correction of gravity segregation. A significant part of our effort went into the development of a parallelization strategy for streamline solvers on the next generation shared memory machines. We found in this work that the built-in dynamic scheduling strategies of OpenMP lead to parallel efficiencies that are comparable to optimal schedules obtained with customized explicit load balancing strategies as long as the ratio of number of streamlines to number of threads is sufficiently high, which is the case in real-fie

  4. Process for coal liquefaction by separation of entrained gases from slurry exiting staged dissolvers

    DOE Patents [OSTI]

    Givens, Edwin N.; Ying, David H. S.

    1983-01-01

    There is described an improved liquefaction process by which coal is converted to a low ash and low sulfur carbonaceous material that can be used as a fuel in an environmentally acceptable manner without costly gas scrubbing equipment. In the process, coal is slurried with a solvent, passed through a preheater and at least two dissolvers in series in the presence of hydrogen-rich gases at elevated temperatures and pressures. Solids, including mineral ash and unconverted coal macerals are separated from the condensed dissolver effluent. In accordance with the improved process, fresh hydrogen is fed to each dissolver and the entrained gas from each dissolver is separated from the slurry phase and removed from the reactor system before the condensed phase is passed to the next dissolver in the series. In accordance with another process, the feeds to the dissolvers are such that the top of each downstream dissolver is used as a gas-liquid separator.

  5. Ni(NiO)/single-walled carbon nanotubes composite: Synthesis of electro-deposition, gas sensing property for NO gas and density functional theory calculation

    SciTech Connect (OSTI)

    Li, Li; Zhang, Guo; Chen, Lei; Bi, Hong-Mei; Shi, Ke-Ying

    2013-02-15

    Graphical abstract: The Ni(NiO)/semiconducting single-walled carbon nanotubes composite collected from the cathode after electro-deposition shows a high sensitivity to low-concentration NO gas at room temperature (18 °C). Display Omitted Highlights: ? Ni(NiO) nanoparticles were deposited on semiconducting SWCNTs by electro-deposition. ? Ni(NiO)/semiconducting SWCNTs film shows a high sensitivity to NO gas at 18 °C. ?Theoretical calculation reveals electron transfer from SWCNTs to NO via Ni. -- Abstract: Single-walled carbon nanotubes which contains metallic SWCNTs (m-SWCNTs) and semiconducting SWCNTs (s-SWCNTs) have been obtained under electric arc discharge. Their separation can be effectively achieved by the electro-deposition method. The Ni(NiO)/s-SWCNTs composite was found on cathode where Ni was partially oxidized to NiO at ambient condition with Ni(NiO) nanoparticles deposited uniformly on the bundles of SWCNTs. These results were confirmed by Raman spectra, transmission electron microscopy (TEM), scanning electron microscopy (SEM), UV–vis–NIR and TG characterizations. Furthermore, investigation of the gas sensing property of Ni(NiO)/s-SWCNTs composite film to NO gas at 18 °C demonstrated the sensitivity was approximately 5% at the concentration of 97 ppb. Moreover, density functional theory (DFT) calculations were performed to explore the sensing mechanism which suggested the adsorption of NO molecules onto the composite through N–Ni interaction as well as the proposition of electron transfer mechanisms from SWCNTs to NO via the Ni medium.

  6. Fabrication of gas turbine water-cooled composite nozzle and bucket hardware employing plasma spray process

    DOE Patents [OSTI]

    Schilke, Peter W.; Muth, Myron C.; Schilling, William F.; Rairden, III, John R.

    1983-01-01

    In the method for fabrication of water-cooled composite nozzle and bucket hardware for high temperature gas turbines, a high thermal conductivity copper alloy is applied, employing a high velocity/low pressure (HV/LP) plasma arc spraying process, to an assembly comprising a structural framework of copper alloy or a nickel-based super alloy, or combination of the two, and overlying cooling tubes. The copper alloy is plamsa sprayed to a coating thickness sufficient to completely cover the cooling tubes, and to allow for machining back of the copper alloy to create a smooth surface having a thickness of from 0.010 inch (0.254 mm) to 0.150 inch (3.18 mm) or more. The layer of copper applied by the plasma spraying has no continuous porosity, and advantageously may readily be employed to sustain a pressure differential during hot isostatic pressing (HIP) bonding of the overall structure to enhance bonding by solid state diffusion between the component parts of the structure.

  7. Tunable Diode Laser Sensors to Monitor Temperature and Gas Composition in High-Temperature Coal Gasifiers

    SciTech Connect (OSTI)

    Hanson, Ronald; Whitty, Kevin

    2014-12-01

    The integrated gasification combined cycle (IGCC) when combined with carbon capture and storage can be one of the cleanest methods of extracting energy from coal. Control of coal and biomass gasification processes to accommodate the changing character of input-fuel streams is required for practical implementation of integrated gasification combined-cycle (IGCC) technologies. Therefore a fast time-response sensor is needed for real-time monitoring of the composition and ideally the heating value of the synthesis gas (here called syngas) as it exits the gasifier. The goal of this project was the design, construction, and demonstration an in situ laserabsorption sensor to monitor multiple species in the syngas output from practical-scale coal gasifiers. This project investigated the hypothesis of using laser absorption sensing in particulateladen syngas. Absorption transitions were selected with design rules to optimize signal strength while minimizing interference from other species. Successful in situ measurements in the dusty, high-pressure syngas flow were enabled by Stanford’s normalized and scanned wavelength modulation strategy. A prototype sensor for CO, CH4, CO2, and H2O was refined with experiments conducted in the laboratory at Stanford University, a pilot-scale at the University of Utah, and an engineering-scale gasifier at DoE’s National Center for Carbon Capture with the demonstration of a prototype sensor with technical readiness level 6 in the 2014 measurement campaign.

  8. Method for dissolving plutonium dioxide

    DOE Patents [OSTI]

    Tallent, Othar K.

    1976-01-01

    A method for dissolving plutonium dioxide comprises adding silver ions to a nitric acid-hydrofluoric acid solution to significantly speed up dissolution of difficultly soluble plutonium dioxide.

  9. GAS TEMPERATURE AND CONCENTRATION MEASUREMENTS IN THE VICINITY OF A BURNING/DECOMPOSING CARBON-EPOXY AIRCRAFT COMPOSITE MATERIAL

    Office of Scientific and Technical Information (OSTI)

    43C GAS TEMPERATURE AND CONCENTRATION MEASUREMENTS IN THE VICINITY OF A BURNING/DECOMPOSING CARBON-EPOXY AIRCRAFT COMPOSITE MATERIAL Sean P. Kearney*^, Amanda B. Dodd^, Alexis Bohlin , and Christopher J. Kliewer ^Engineering Sciences Center, Sandia National Laboratories, Albuquerque, NM 87185 USA ^Weapon Systems Engineering Center, Sandia National Laboratories, Livermore, CA 94551 USA Combustion Research Facility, Sandia National Laboratories, Livermore, CA 94551 USA We report measurements of

  10. Gas temperature and concentration measurements in the vicinity of a burning/decomposing carbon-epoxy aircraft composite material

    Office of Scientific and Technical Information (OSTI)

    GAS TEMPERATURE AND CONCENT _"0616C MEASUREMENTS IN THE VICINITY OF A BURNING/DECOMPOSING CARBON-EPOXY AIRCRAFT COMPOSITE MATERIAL Flickering phase Steady state phase Sean P. Kearney Sandia National Laboratories Albuquerque, NM Amanda B. Dodd, Alexis Bohlin, and Christopher J. Kliewer Sandia National Laboratories Sandia National Laboratories Livermore, CA Sandia National Laboratories is a multi-program laboratory managed and operated by Sandia Corporation, a wholly owned subsidiary of

  11. Geochemical Analyses of Surface and Shallow Gas Flux and Composition Over a Proposed Carbon Sequestration Site in Eastern Kentucky

    SciTech Connect (OSTI)

    Thomas Parris; Michael Solis; Kathryn Takacs

    2009-12-31

    Using soil gas chemistry to detect leakage from underground reservoirs (i.e. microseepage) requires that the natural range of soil gas flux and chemistry be fully characterized. To meet this need, soil gas flux (CO{sub 2}, CH{sub 4}) and the bulk (CO{sub 2}, CH{sub 4}) and isotopic chemistry ({delta}{sup 13}C-CO2) of shallow soil gases (<1 m, 3.3 ft) were measured at 25 locations distributed among two active oil and gas fields, an active strip mine, and a relatively undisturbed research forest in eastern Kentucky. The measurements apportion the biologic, atmospheric, and geologic influences on soil gas composition under varying degrees of human surface disturbance. The measurements also highlight potential challenges in using soil gas chemistry as a monitoring tool where the surface cover consists of reclaimed mine land or is underlain by shallow coals. For example, enrichment of ({delta}{sup 13}C-CO2) and high CH{sub 4} concentrations in soils have been historically used as indicators of microseepage, but in the reclaimed mine lands similar soil chemistry characteristics likely result from dissolution of carbonate cement in siliciclastic clasts having {delta}{sup 13}C values close to 0{per_thousand} and degassing of coal fragments. The gases accumulate in the reclaimed mine land soils because intense compaction reduces soil permeability, thereby impeding equilibration with the atmosphere. Consequently, the reclaimed mine lands provide a false microseepage anomaly. Further potential challenges arise from low permeability zones associated with compacted soils in reclaimed mine lands and shallow coals in undisturbed areas that might impede upward gas migration. To investigate the effect of these materials on gas migration and composition, four 10 m (33 ft) deep monitoring wells were drilled in reclaimed mine material and in undisturbed soils with and without coals. The wells, configured with sampling zones at discrete intervals, show the persistence of some of the aforementioned anomalies at depth. Moreover, high CO{sub 2} concentrations associated with coals in the vadose zone suggest a strong affinity for adsorbing CO{sub 2}. Overall, the low permeability of reclaimed mine lands and coals and CO2 adsorption by the latter is likely to reduce the ability of surface geochemistry tools to detect a microseepage signal.

  12. ON THE UNUSUAL GAS COMPOSITION IN THE {beta} PICTORIS DEBRIS DISK

    SciTech Connect (OSTI)

    Xie, Ji-Wei; Wu, Yanqin; Brandeker, Alexis E-mail: wu@astro.utoronto.ca

    2013-01-10

    The metallic gas associated with the {beta} Pic debris disk is not believed to be primordial, but arises from the destruction of dust grains. Recent observations have shown that carbon and oxygen in this gas are exceptionally overabundant compared to other elements, by some 400 times. We study the origin of this enrichment under two opposing hypotheses: preferential production, where the gas is produced with the observed unusual abundance (as may happen if gas is produced by photodesorption from C/O-rich icy grains), and preferential depletion, where the gas evolves to the observed state from an original solar abundance (if outgassing occurs under high-speed collisions) under a number of dynamical processes. We include in our study the following processes: radiative blowout of metallic elements, dynamical coupling between different species, and viscous accretion onto the star. We find that, if gas viscosity is sufficiently low (the conventional {alpha} parameter {approx}< 10{sup -3}), differential blowout dominates. While gas accumulates gradually in the disks, metallic elements subject to strong radiation forces, such as Na and Fe, deplete more quickly than C and O, naturally leading to the observed overabundance of C and O. On the other hand, if gas viscosity is high ({alpha} {approx}> 10{sup -1}, as expected for this largely ionized disk), gas is continuously produced and viscously accreted toward the star. This removal process does not discriminate between elements so the observed overabundance of C and O has to be explained by a preferential production that strongly favors C and O to other metallic elements. One such candidate is photodesorption off the grains. We compare our calculation against all observed elements ({approx}10) in the gas disk and find a mild preference for the second scenario, based on the abundance of Si alone. If true, {beta} Pic should still be accreting at an observable rate, well after its primordial disk has disappeared.

  13. METHOD OF DISSOLVING URANIUM METAL

    DOE Patents [OSTI]

    Slotin, L.A.

    1958-02-18

    This patent relates to an economicai means of dissolving metallic uranium. It has been found that the addition of a small amount of perchloric acid to the concentrated nitric acid in which the uranium is being dissolved greatly shortens the time necessary for dissolution of the metal. Thus the use of about 1 or 2 percent of perchioric acid based on the weight of the nitric acid used, reduces the time of dissolution of uranium by a factor of about 100.

  14. PALLADIUM/COPPER ALLOY COMPOSITE MEMBRANES FOR HIGH TEMPERATURE HYDROGEN SEPARATION FROM COAL-DERIVED GAS STREAMS

    SciTech Connect (OSTI)

    J. Douglas Way

    2001-07-31

    Recent advances have shown that Pd-Cu composite membranes are not susceptible to the mechanical, embrittlement, and poisoning problems that have prevented widespread industrial use of Pd for high temperature H2 separation. These membranes consist of a thin ({approx}1 mm) film of metal deposited on the inner surface of a porous metal or ceramic tube. Based on preliminary results, thin Pd{sub 60}Cu{sub 40} films are expected to exhibit hydrogen flux up to ten times larger than commercial polymer membranes for H2 separation, and resist poisoning by H{sub 2}S and other sulfur compounds typical of coal gas. Similar Pd-membranes have been operated at temperatures as high as 750 C. The overall objective of the proposed project is to demonstrate the feasibility of using sequential electroless plating to fabricate Pd{sub 60}Cu{sub 4}0 alloy membranes on porous supports for H{sub 2} separation. These following advantages of these membranes for processing of coal-derived gas will be demonstrated: High H{sub 2} flux; Sulfur tolerant, even at very high total sulfur levels (1000 ppm); Operation at temperatures well above 500 C; and Resistance to embrittlement and degradation by thermal cycling. The proposed research plan is designed to providing a fundamental understanding of: Factors important in membrane fabrication; Optimization of membrane structure and composition; Effect of temperature, pressure, and gas composition on H{sub 2} flux and membrane selectivity; and How this membrane technology can be integrated in coal gasification-fuel cell systems.

  15. PALLADIUM/COPPER ALLOY COMPOSITE MEMBRANES FOR HIGH TEMPERATURE HYDROGEN SEPARATION FROM COAL-DERIVED GAS STREAMS

    SciTech Connect (OSTI)

    J. Douglas Way

    2003-01-01

    For hydrogen from coal gasification to be used economically, processing approaches that produce a high purity gas must be developed. Palladium and its alloys, nickel, platinum and the metals in Groups 3 to 5 of the Periodic Table are all permeable to hydrogen. Hydrogen permeable metal membranes made of palladium and its alloys are the most widely studied due to their high hydrogen permeability, chemical compatibility with many hydrocarbon containing gas streams, and infinite hydrogen selectivity. Our Pd composite membranes have demonstrated stable operation at 450 C for over 70 days. Coal derived synthesis gas will contain up to 15000 ppm H{sub 2}S as well as CO, CO{sub 2}, N{sub 2} and other gases. Highly selectivity membranes are necessary to reduce the H{sub 2}S concentration to acceptable levels for solid oxide and other fuel cell systems. Pure Pd-membranes are poisoned by sulfur, and suffer from mechanical problems caused by thermal cycling and hydrogen embrittlement. Recent advances have shown that Pd-Cu composite membranes are not susceptible to the mechanical, embrittlement, and poisoning problems that have prevented widespread industrial use of Pd for high temperature H{sub 2} separation. These membranes consist of a thin ({le} 5 {micro}m) film of metal deposited on the inner surface of a porous metal or ceramic tube. With support from this DOE Grant, we have fabricated thin, high flux Pd-Cu alloy composite membranes using a sequential electroless plating approach. Thin, Pd{sub 60}Cu{sub 40} films exhibit a hydrogen flux more than ten times larger than commercial polymer membranes for H{sub 2} separation, resist poisoning by H{sub 2}S and other sulfur compounds typical of coal gas, and exceed the DOE Fossil Energy target hydrogen flux of 80 ml/cm{sup 2} {center_dot} min = 0.6 mol/m{sup 2} {center_dot} s for a feed pressure of 40 psig. Similar Pd-membranes have been operated at temperatures as high as 750 C. We have developed practical electroless plating procedures for fabrication of thin Pd-Cu composite membranes at any scale.

  16. Reducing emissions from uranium dissolving

    SciTech Connect (OSTI)

    Griffith, W.L.; Compere, A.L.; Huxtable, W.P.; Googin, J.M.

    1992-10-01

    This study was designed to assess the feasibility of decreasing NO[sub x] emissions from the current uranium alloy scrap tray dissolving facility. In the current process, uranium scrap is dissolved in boiling nitric acid in shallow stainless-steel trays. As scrap dissolves, more metal and more nitric acid are added to the tray by operating personnel. Safe geometry is assured by keeping liquid level at or below 5 cm, the depth of a safe infinite slab. The accountability batch control system provides additional protection against criticality. Both uranium and uranium alloys are dissolved. Nitric acid is recovered from the vapors for reuse. Metal nitrates are sent to uranium recovery. Brown NO[sub x] fumes evolved during dissolving have occasionally resulted in a visible plume from the trays. The fuming is most noticeable during startup and after addition of fresh acid to a tray. Present environmental regulations are expected to require control of brown NO[sub x] emissions. A detailed review of the literature, indicated the feasibility of slightly altering process chemistry to favor the production of NO[sub 2] which can be scrubbed and recycled as nitric acid. Methods for controlling the process to manage offgas product distribution and to minimize chemical reaction hazards were also considered.

  17. Reducing emissions from uranium dissolving

    SciTech Connect (OSTI)

    Griffith, W.L.; Compere, A.L.; Huxtable, W.P.; Googin, J.M.

    1992-10-01

    This study was designed to assess the feasibility of decreasing NO{sub x} emissions from the current uranium alloy scrap tray dissolving facility. In the current process, uranium scrap is dissolved in boiling nitric acid in shallow stainless-steel trays. As scrap dissolves, more metal and more nitric acid are added to the tray by operating personnel. Safe geometry is assured by keeping liquid level at or below 5 cm, the depth of a safe infinite slab. The accountability batch control system provides additional protection against criticality. Both uranium and uranium alloys are dissolved. Nitric acid is recovered from the vapors for reuse. Metal nitrates are sent to uranium recovery. Brown NO{sub x} fumes evolved during dissolving have occasionally resulted in a visible plume from the trays. The fuming is most noticeable during startup and after addition of fresh acid to a tray. Present environmental regulations are expected to require control of brown NO{sub x} emissions. A detailed review of the literature, indicated the feasibility of slightly altering process chemistry to favor the production of NO{sub 2} which can be scrubbed and recycled as nitric acid. Methods for controlling the process to manage offgas product distribution and to minimize chemical reaction hazards were also considered.

  18. Reducing Emissions from Uranium Dissolving

    SciTech Connect (OSTI)

    Griffith, W.L.

    1992-01-01

    This study was designed to assess the feasibility of decreasing NO{sub x} emissions from the current uranium alloy scrap tray dissolving facility. In the current process, uranium scrap is dissolved in boiling nitric acid in shallow stainless-steel trays. As scrap dissolves, more metal and more nitric acid are added to the tray by operating personnel. Safe geometry is assured by keeping liquid level at or below 5 cm, the depth of a safe infinite slab. The accountability batch control system provides additional protection against criticality. The trays are steam coil heated. The process has operated satisfactorily, with few difficulties, for decades. Both uranium and uranium alloys are dissolved. Nitric acid is recovered from the vapors for reuse. Metal nitrates are sent to uranium recovery. Brown NO{sub x} fumes evolved during dissolving have occasionally resulted in a visible plume from the trays. The fuming is most noticeable during startup and after addition of fresh acid to a tray. Present environmental regulations are expected to require control of brown NO{sub x} emissions. Because NO{sub x} is hazardous, fumes should be suppressed whenever the electric blower system is inoperable. Because the tray dissolving process has worked well for decades, as much of the current capital equipment and operating procedures as possible were preserved. A detailed review of the literature, indicated the feasibility of slightly altering process chemistry to favor the production of NO{sub 2}, which can be scrubbed and recycled as nitric acid. Methods for controlling the process to manage offgas product distribution and to minimize chemical reaction hazards were also considered.

  19. REMORA 3: The first instrumented fuel experiment with on-line gas composition measurement by acoustic sensor

    SciTech Connect (OSTI)

    Lambert, T.; Muller, E.; Federici, E.; Rosenkrantz, E.; Ferrandis, J. Y.; Tiratay, X.; Silva, V.; Machard, D.; Trillon, G.

    2011-07-01

    With the aim to improve the knowledge of nuclear fuel behaviour, the development of advanced instrumentation used during in-pile experiments in Material Testing Reactor (MTR) is necessary. To obtain data on high Burn-Up MOX fuel performance under transient operating conditions, especially in order to differentiate between the kinetics of fission gas and helium releases and to acquire data on the degradation of the fuel conductivity, a highly instrumented in-pile experiment called REMORA 3 has been conducted by CEA and IES (Southern Electronic Inst. - CNRS - Montpellier 2 Univ.). A rodlet extracted from a fuel rod base irradiated for five cycles in a French EDF commercial PWR has been re-instrumented with a fuel centerline thermocouple, a pressure transducer and an advanced acoustic sensor. This latter, patented by CEA and IES, is 1 used in addition to pressure measurement to determine the composition of the gases located in the free volume and the molar fractions of fission gas and helium. This instrumented fuel rodlet has been re-irradiated in a specific rig, GRIFFONOS, located in the periphery of the OSIRIS experimental reactor core at CEA Saclay. First of all, an important design stage and test phases have been performed before the irradiation in order to optimize the response and the accuracy of the sensors: - To control the influence of the temperature on the acoustic sensor behaviour, a thermal mock-up has been built. - To determine the temperature of the gas located in the acoustic cavity as a function of the coolant temperature, and the average temperature of the gases located in the rodlet free volume as a function of the linear heat rate, thermal calculations have been achieved. The former temperature is necessary to calculate the molar fractions of the gases and the latter is used to calculate the total amount of released gas from the internal rod pressure measurements. - At the end of the instrumented rod manufacturing, specific internal free volume and pressure measurements have been carried out. Preliminary calculations of the REMORA 3 experiments have been performed from these measurements, with the aim to determine free volume evolution as a function of linear heat rate history. - A tracer gas has been added to the filling gas in order to optimize the accuracy of the helium balance at the time of the post irradiation examination. The two phases of the REMORA 3 irradiation have been achieved at the end of 2010 in the OSIRIS reactor. Slight acoustic signal degradation, observed during the test under high neutron and gamma flux, has led to an efficiency optimization of the signal processing. The instrumentation ran smoothly and allowed to reach all the experimental objectives. After non destructive examination performed in the Osiris reactor pool, typically gamma spectrometry and neutron radiography, the instrumented rod and the device have been disassembled. Then the instrumented rod has been transported to the LECA facility in Cadarache Centre for post irradiation examination. The internal pressure and volume of the rodlet as well as precise gas composition measurements will be known after puncturing step performed in a hot cell of this facility. That will allow us to qualify the in-pile measurements and to finalize the data which will be used for the validation of the fuel behaviour computer codes. (authors)

  20. Method for the detection of nitro-containing compositions using ultraviolet photolysis

    DOE Patents [OSTI]

    Reagen, William K.; Lancaster, Gregory D.; Partin, Judy K.; Moore, Glenn A.

    2000-01-01

    A method for detecting nitro-containing compositions (e.g. nitrate/nitrite materials) in water samples and on solid substrates. In a water sample, ultraviolet light is applied to the sample so that dissolved nitro compositions therein will photolytically dissociate into gaseous nitrogen oxides (NO.sub.2(g) and/or NO.sub.(g)). A carrier gas is then introduced into the sample to generate a gaseous stream which includes the carrier gas combined with any gaseous nitrogen oxides. The carrier gas is thereafter directed into a detector. To detect nitro-compositions on solid substrates, ultraviolet light is applied thereto. A detector is then used to detect any gaseous nitrogen oxides which are photolytically generated during ultraviolet illumination. An optional carrier gas may be applied to the substrate during illumination to produce a gaseous stream which includes the carrier gas and any gaseous nitrogen oxides. The gaseous stream is then supplied to the detector.

  1. Carbon molecular sieve membranes on porous composite tubular supports for high performance gas separations

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

    Lee, Pyung -Soo; Bhave, Ramesh R.; Nam, Seung -Eun; Kim, Daejin

    2016-01-11

    Thin carbon molecular sieve membranes (<500 nm) were fabricated inside of long geometry (9 inch) of stainless steel tubes with all welded construction. Alumina intermediate layer on porous stainless steel tube support was used to reduce effective support pore size and to provide a more uniform surface roughness. Novolac phenolic resin solution was then coated on the inside of porous stainless steel tube by slip casting while their viscosities were controlled from 5 centipoises to 30 centipoises. Carbonization was carried out at 700 °C in which thermal stress was minimized and high quality carbon films were prepared. The highest separationmore » performance characteristics were obtained using 20 cP phenolic resin solutions. The fabricated CMSM showed good separation factor for He/N2 462, CO2/N2 97, and O2/N2 15.4. As the viscosity of polymer precursor solution was reduced from 20 cP to 15 cP, gas permeance values almost doubled with somewhat lower separation factor He/N2 156, CO2/N2 88, and O2/N2 7.7.« less

  2. Sensing behaviour of nanosized zinc-tin composite oxide towards liquefied petroleum gas and ethanol

    SciTech Connect (OSTI)

    Singh, Ravi Chand; Singh, Onkar; Singh, Manmeet Pal; Chandi, Paramdeep Singh; Thangaraj, R.

    2010-09-15

    A chemical route has been used to synthesize composite oxides of zinc and tin. An ammonia solution was added to equal amounts of zinc and tin chloride solutions of same molarities to obtain precipitates. Three portions of these precipitates were annealed at 400, 600 and 800 {sup o}C, respectively. Results of X-ray diffraction and transmission electron microscopy clearly depicted coexistence of phases of nano-sized SnO{sub 2}, ZnO, Zn{sub 2}SnO{sub 4} and ZnSnO{sub 3}. The effect of annealing on structure, morphology and sensing has been observed as well. It has been observed that annealing promoted growth of Zn{sub 2}SnO{sub 4} and ZnSnO{sub 3} at the expense of zinc. The sensing response of fabricated sensors from these materials to 250 ppm LPG and ethanol has been investigated. The sensor fabricated from powder annealed at 400 {sup o}C responded better to LPG than ethanol.

  3. Preparation and characterization of composite membrane for high temperature gas separation

    SciTech Connect (OSTI)

    Ilias, S.; King, F.G.

    1998-03-26

    A new class of perm-selective inorganic membrane was developed by electroless deposition of palladium thin-film on a microporous {alpha}-alumina ceramic substrate ({phi}39 mm x 2 mm thickness, nominal pore size 150 nm and open porosity {approx} 42 %). The new membrane was characterized by Scanning Electron Micrography (SEM), Energy Dispersive X-ray Analysis (EDX) and conducting permeability experiments with hydrogen, helium, argon and carbon dioxide at temperatures from 473 K to 673 K and feed pressures from 136 kPa to 274 kPa. The results indicate that the membrane has both high permeability and selectivity for hydrogen. The hydrogen transport through the Pd-composite membrane closely followed Sievert's law. A theoretical model is presented to describe the performance of a single-stage permeation process. The model uses a unified mathematical formulation and calculation methods for two flow patterns (cocurrent and countercurrent) with two permeable components and a nonpermeable fraction in the feed and a sweep stream in the permeate. The countercurrent flow pattern is always better than the cocurrent flow pattern with respect to stage cut and membrane area. The effect of flow configuration decreases with increasing membrane selectivity or with decreasing permeate/feed ratio.

  4. Full-scale hot cell test of an acoustic sensor dedicated to measurement of the internal gas pressure and composition of a LWR nuclear fuel rod

    SciTech Connect (OSTI)

    Ferrandis, J. Y.; Rosenkrantz, E.; Leveque, G.; Baron, D.; Segura, J. C.; Cecilia, G.; Provitina, O.

    2011-07-01

    A full-scale hot cell test of the internal gas pressure and composition measurement by an acoustic sensor was carried on successfully between 2008 and 2010 on irradiated fuel rods in the LECA-STAR facility at Cadarache Centre. The acoustic sensor has been specially designed in order to provide a nondestructive technique to easily carry out the measurement of the internal gas pressure and gas composition of a LWR nuclear fuel rod. This sensor has been achieved in 2007 and is now covered by an international patent. The first positive result, concerning the device behaviour, is that the sensor-operating characteristics have not been altered by a two-year exposure in the hot cell ambient. We performed the gas characterisation contained in irradiated fuel rods. The acoustic method accuracy is now {+-}5 bars on the pressure measurement result and {+-}0.3% on the evaluated gas composition. The results of the acoustic method were compared to puncture results. Another significant conclusion is that the efficiency of the acoustic method is not altered by the irradiation time, and possible modification of the cladding properties. These results make it possible to demonstrate the feasibility of the technique on irradiated fuel rods. The transducer and the associated methodology are now operational. (authors)

  5. METHOD OF DISSOLVING REFRACTORY ALLOYS

    DOE Patents [OSTI]

    Helton, D.M.; Savolainen, J.K.

    1963-04-23

    This patent relates to the dissolution of alloys of uranium with zirconium, thorium, molybdenum, or niobium. The alloy is contacted with an anhydrous solution of mercuric chloride in a low-molecular-weight monohydric alcohol to produce a mercury-containing alcohol slurry. The slurry is then converted to an aqueous system by adding water and driving off the alcohol. The resulting aqueous slurry is electrolyzed in the presence of a mercury cathode to remove the mercury and produce a uranium-bearing aqueous solution. This process is useful for dissolving irradiated nuclear reactor fuels for radiochemical reprocessing by solvent extraction. In addition, zirconium-alloy cladding is selectively removed from uranium dioxide fuel compacts by this means. (AEC)

  6. PARAMETRIC EFFECTS OF ANTI-FOAM COMPOSITION, SIMULANT PROPERTIES AND NOBLE METALS ON THE GAS HOLDUP AND RELEASE OF A NON-NEWTONIAN WASTE SLURRY SIMULANT

    SciTech Connect (OSTI)

    Guerrero, H; Charles Crawford, C; Mark Fowley, M

    2008-08-07

    Gas holdup tests were performed in bench-scale and small-scale mechanically-agitated mixing systems at the Savannah River National Laboratory (SRNL) for a simulant of waste from the Hanford Tank 241-AZ-101. These featured additions of DOW Corning Q2-3183A anti-foam agent. Results indicated that this anti-foam agent (AFA) increased gas holdup in the waste simulant by about a factor of four and, counter-intuitively, that the holdup increased as the non-newtonian simulant shear strength decreased (apparent viscosity decreased). Such results raised the potential of increased flammable gas retention in Hanford Waste Treatment and Immobilization Plant (WTP) vessels mixed by air sparging and pulse-jet mixers (PJMs) during a Design Basis Event (DBE). Additional testing was performed to determine the effects of simulant properties, composition of alternate AFAs, and presence of trace noble metals. Key results are that: (1) Increased gas holdup resulting from addition of Q2-3183A is due to a decrease in surface tension that supports small bubbles which have low rise velocities. (2) Dow Corning 1520-US AFA shows it to be a viable replacement to Dow Corning Q2-3183A AFA. This alternative AFA, however, requires significantly higher dosage for the same anti-foam function. (3) Addition of noble metals to the AZ-101 waste simulant does not produce a catalytic gas retention effect with the AFA.

  7. Determination of landfill gas composition and pollutant emission rates at fresh kills landfill. Volume 1. Project report. Final report

    SciTech Connect (OSTI)

    1995-12-07

    Air emissions of landfill gas pollutants at Fresh Kills Landfill, located in Staten Island, NY, were estimated based on three weeks of sampling of flow, concentration, and flux at passive vents, gas extraction wells, gas collection plant headers, and the landfill surface conducted by Radian Corporation in 1995. Emission rates were estimated for 202 pollutants, including hydrogen sulfide, mercury vapor, speciated volatile organic compounds, methane, and carbon dioxide. Results indicate that large amounts of mercury enter the methane, and carbon dioxide. Results indicate that large amounts of mercury enter the methane recovery plant. Emission factors based on the results are presented.

  8. Michigan Associated-Dissolved Natural Gas Proved Reserves, Wet...

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

    Acquisitions 0 0 0 0 0 0 2000-2014 Extensions 0 0 0 0 0 1 1979-2014 New Field Discoveries 19 0 14 7 0 0 1979-2014 New Reservoir Discoveries in Old Fields 9 0 0 1 3 1 1979-2014 ...

  9. LA, South Onshore Associated-Dissolved Natural Gas Proved Reserves...

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

    Extensions 67 26 26 104 141 58 1979-2014 New Field Discoveries 0 0 0 1 0 2 1979-2014 New Reservoir Discoveries in Old Fields 1 2 2 1 14 13 1979-2014 Estimated Production 65 72 75 ...

  10. NM, West Associated-Dissolved Natural Gas Proved Reserves, Wet...

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

    Acquisitions 0 0 25 0 1 11 2000-2014 Extensions 0 0 1 0 51 112 1979-2014 New Field Discoveries 0 0 0 0 0 0 1979-2014 New Reservoir Discoveries in Old Fields 0 0 0 0 0 0 1979-2014 ...

  11. Kentucky Associated-Dissolved Natural Gas Proved Reserves, Wet...

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

    Acquisitions 0 8 0 0 0 0 2000-2014 Extensions 0 0 0 0 0 0 1979-2014 New Field Discoveries 0 0 0 0 0 0 1979-2014 New Reservoir Discoveries in Old Fields 0 0 0 0 0 0 1979-2014 ...

  12. Ohio Associated-Dissolved Natural Gas Proved Reserves, Wet After...

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

    Acquisitions 1 54 0 0 0 7 2000-2014 Extensions 0 0 0 7 134 4 1979-2014 New Field Discoveries 0 0 0 0 1 1 1979-2014 New Reservoir Discoveries in Old Fields 0 0 0 5 6 0 1979-2014 ...

  13. Florida Associated-Dissolved Natural Gas Proved Reserves, Wet...

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

    Acquisitions 0 0 0 0 0 0 2000-2014 Extensions 0 0 0 0 0 0 1979-2014 New Field Discoveries 0 0 0 0 0 0 1979-2014 New Reservoir Discoveries in Old Fields 0 0 0 0 0 0 1979-2014 ...

  14. Pennsylvania Associated-Dissolved Natural Gas Proved Reserves...

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

    Acquisitions 12 83 0 0 0 0 2000-2014 Extensions 0 0 9 5 44 1 1979-2014 New Field Discoveries 0 0 0 0 0 0 1979-2014 New Reservoir Discoveries in Old Fields 0 0 0 0 0 0 1979-2014 ...

  15. New York Associated-Dissolved Natural Gas Proved Reserves, Wet...

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

    Acquisitions 0 11 0 0 0 0 2000-2014 Extensions 0 0 0 0 0 0 1979-2014 New Field Discoveries 0 0 0 0 0 0 1979-2014 New Reservoir Discoveries in Old Fields 0 0 0 0 0 0 1979-2014 ...

  16. LA, State Offshore Associated-Dissolved Natural Gas Proved Reserves...

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

    Extensions 0 0 3 8 13 0 1981-2014 New Field Discoveries 0 0 0 0 0 1 1981-2014 New Reservoir Discoveries in Old Fields 2 14 0 0 0 0 1981-2014 Estimated Production 41 24 9 17 14 12 ...

  17. CA, Coastal Region Onshore Associated-Dissolved Natural Gas Proved...

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

    Acquisitions 0 0 0 0 1 52 2000-2014 Extensions 0 0 1 1 1 0 1979-2014 New Field Discoveries 0 0 0 0 0 0 1979-2014 New Reservoir Discoveries in Old Fields 0 0 0 0 0 0 1979-2014 ...

  18. Nebraska Associated-Dissolved Natural Gas Proved Reserves, Wet...

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

    Acquisitions 0 0 0 2011-2013 Extensions 0 0 0 2011-2013 New Field Discoveries 0 0 0 2011-2013 New Reservoir Discoveries in Old Fields 0 0 0 2011-2013 Estimated Production 0 0 0 ...

  19. Miscellaneous Associated-Dissolved Natural Gas Proved Reserves...

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

    Acquisitions 0 0 0 0 0 0 2000-2014 Extensions 0 2 0 0 0 0 1979-2014 New Field Discoveries 0 0 0 0 0 0 1979-2014 New Reservoir Discoveries in Old Fields 0 0 0 0 0 0 1979-2014 ...

  20. Wyoming Associated-Dissolved Natural Gas Proved Reserves, Wet...

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

    Extensions 5 14 45 323 324 434 1979-2014 New Field Discoveries 0 1 0 0 0 0 1979-2014 New Reservoir Discoveries in Old Fields 0 0 0 0 11 0 1979-2014 Estimated Production 38 39 34 52 ...

  1. Alabama Associated-Dissolved Natural Gas Proved Reserves, Wet...

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

    Acquisitions 0 0 20 0 0 0 2000-2014 Extensions 0 0 0 0 0 2 1979-2014 New Field Discoveries 0 2 2 0 0 0 1979-2014 New Reservoir Discoveries in Old Fields 0 0 0 0 0 14 1979-2014 ...

  2. Louisiana Associated-Dissolved Natural Gas Proved Reserves, Wet...

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

    Extensions 67 26 29 114 155 59 1981-2014 New Field Discoveries 0 0 0 1 0 3 1981-2014 New Reservoir Discoveries in Old Fields 5 17 2 1 14 13 1981-2014 Estimated Production 113 108 ...

  3. CA, Los Angeles Basin Onshore Associated-Dissolved Natural Gas...

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

    Acquisitions 0 0 3 0 37 8 2000-2014 Extensions 0 0 0 0 2 0 1979-2014 New Field Discoveries 0 0 0 0 0 0 1979-2014 New Reservoir Discoveries in Old Fields 0 0 0 0 0 0 1979-2014 ...

  4. North Louisiana Associated-Dissolved Natural Gas Proved Reserves...

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

    Acquisitions 0 0 51 0 31 12 2000-2014 Extensions 0 0 0 2 1 1 1979-2014 New Field Discoveries 0 0 0 0 0 0 1979-2014 New Reservoir Discoveries in Old Fields 2 1 0 0 0 0 1979-2014 ...

  5. Montana Associated-Dissolved Natural Gas Proved Reserves, Wet...

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

    Extensions 5 41 14 38 37 79 1979-2014 New Field Discoveries 0 0 7 0 0 0 1979-2014 New Reservoir Discoveries in Old Fields 0 1 1 0 0 0 1979-2014 Estimated Production 35 24 19 22 25 ...

  6. Mississippi Associated-Dissolved Natural Gas Proved Reserves...

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

    Acquisitions 0 2 0 3 0 2 2000-2014 Extensions 0 0 0 4 3 9 1979-2014 New Field Discoveries 2 0 1 1 0 1 1979-2014 New Reservoir Discoveries in Old Fields 0 0 0 0 0 2 1979-2014 ...

  7. Arkansas Associated-Dissolved Natural Gas Proved Reserves, Wet...

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

    Acquisitions 0 0 0 0 0 79 2000-2014 Extensions 0 4 0 11 1 0 1979-2014 New Field Discoveries 0 0 0 0 0 0 1979-2014 New Reservoir Discoveries in Old Fields 0 0 0 0 0 0 1979-2014 ...

  8. CA, State Offshore Associated-Dissolved Natural Gas Proved Reserves...

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

    Acquisitions 0 0 8 0 0 13 2000-2014 Extensions 2 3 3 4 0 0 1979-2014 New Field Discoveries 0 0 0 0 0 0 1979-2014 New Reservoir Discoveries in Old Fields 0 0 0 0 2 2 1979-2014 ...

  9. Alaska Associated-Dissolved Natural Gas Proved Reserves, Wet...

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

    Extensions 0 2 3 14 17 8 1979-2014 New Field Discoveries 0 0 0 0 0 0 1979-2014 New Reservoir Discoveries in Old Fields 0 0 0 0 0 0 1979-2014 Estimated Production 225 174 176 172 ...

  10. Oklahoma Associated-Dissolved Natural Gas Proved Reserves, Wet...

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

    Extensions 52 398 1,287 1,764 1,274 2,003 1979-2014 New Field Discoveries 0 0 0 0 2 0 1979-2014 New Reservoir Discoveries in Old Fields 0 0 7 4 220 330 1979-2014 Estimated ...

  11. California Associated-Dissolved Natural Gas Proved Reserves,...

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

    Extensions 470 12 74 8 5 0 1979-2014 New Field Discoveries 0 0 0 4 0 0 1979-2014 New Reservoir Discoveries in Old Fields 0 0 0 1 2 2 1979-2014 Estimated Production 171 186 260 155 ...

  12. North Dakota Associated-Dissolved Natural Gas Proved Reserves...

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

    Extensions 444 475 638 929 1,708 1,306 1979-2014 New Field Discoveries 7 28 11 9 1 4 1979-2014 New Reservoir Discoveries in Old Fields 6 3 18 25 11 42 1979-2014 Estimated ...

  13. Colorado Associated-Dissolved Natural Gas Proved Reserves, Wet...

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

    Extensions 165 318 506 717 811 339 1979-2014 New Field Discoveries 0 0 0 6 0 0 1979-2014 New Reservoir Discoveries in Old Fields 0 0 0 0 0 0 1979-2014 Estimated Production 134 126 ...

  14. CA, San Joaquin Basin Onshore Associated-Dissolved Natural Gas...

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

    Extensions 468 9 70 3 2 0 1979-2014 New Field Discoveries 0 0 0 4 0 0 1979-2014 New Reservoir Discoveries in Old Fields 0 0 0 1 0 0 1979-2014 Estimated Production 148 164 237 132 ...

  15. NM, East Associated-Dissolved Natural Gas Proved Reserves, Wet...

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

    Extensions 233 270 361 478 599 697 1979-2014 New Field Discoveries 0 0 3 2 0 1 1979-2014 New Reservoir Discoveries in Old Fields 0 2 0 1 98 4 1979-2014 Estimated Production 175 173 ...

  16. Natural Gas Associated-Dissolved Proved Reserves, Wet After Lease...

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

    Pacific (California) 731 722 711 652 264 243 1979-2014 Louisiana & Alabama 3,863 3,793 4,196 4,358 4,293 4,253 1981-2014 Texas 629 689 539 854 973 838 1981-2014 Alaska 8,093 7,896 ...

  17. Texas Associated-Dissolved Natural Gas Proved Reserves, Wet After...

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

    8,762 10,130 13,507 19,033 22,167 26,928 1981-2014 Adjustments 226 206 -381 871 192 629 1981-2014 Revision Increases 1,133 1,450 2,099 2,234 3,607 5,191 1981-2014 Revision ...

  18. Associated-Dissolved Natural Gas Estimated Production, Wet After Lease

    Gasoline and Diesel Fuel Update (EIA)

    Separation 2,556 2,445 2,722 3,393 4,114 5,277 1979-2014 Federal Offshore U.S. 659 564 514 535 562 615 1990-2014 Pacific (California) 36 28 31 22 21 21 1979-2014 Gulf of Mexico (Louisiana & Alabama) 522 468 415 411 435 464 1981-2014 Gulf of Mexico (Texas) 101 68 68 102 106 130 1981-2014 Alaska 225 174 176 172 181 204 1979-2014 Lower 48 States 2,331 2,271 2,546 3,221 3,933 5,073 1979-2014 Alabama 5 6 8 17 9 17 1979-2014 Arkansas 4 4 6 9 9 10 1979-2014 California 171 186 260 155 157 147

  19. Associated-Dissolved Natural Gas Reserves Acquisitions, Wet After Lease

    Gasoline and Diesel Fuel Update (EIA)

    Separation 678 2,469 1,884 2,150 2,843 4,589 2000-2014 Federal Offshore U.S. 21 250 56 297 315 83 2000-2014 Pacific (California) 0 0 0 12 11 0 2000-2014 Gulf of Mexico (Louisiana & Alabama) 12 222 49 279 263 80 2000-2014 Gulf of Mexico (Texas) 9 28 7 6 41 3 2000-2014 Alaska 0 0 51 0 1 161 2000-2014 Lower 48 States 678 2,469 1,833 2,150 2,842 4,428 2000-2014 Alabama 0 0 20 0 0 0 2000-2014 Arkansas 0 0 0 0 0 79 2000-2014 California 58 0 11 4 65 1,068 2000-2014 Coastal Region Onshore 0 0 0

  20. Associated-Dissolved Natural Gas Reserves Adjustments, Wet After Lease

    Gasoline and Diesel Fuel Update (EIA)

    Separation 877 -482 390 385 -649 1,396 1979-2014 Federal Offshore U.S. 12 -14 -22 -165 -73 138 1990-2014 Pacific (California) 1 1 -1 -51 14 1 1979-2014 Gulf of Mexico (Louisiana & Alabama) 7 -14 -21 -94 -94 135 1981-2014 Gulf of Mexico (Texas) 4 -1 0 -20 7 2 1981-2014 Alaska 1 -1 -1 -2 1 -1 1979-2014 Lower 48 States 876 -481 391 387 -650 1,397 1979-2014 Alabama 5 13 3 57 -65 20 1979-2014 Arkansas 12 -3 24 38 -23 -20 1979-2014 California 6 7 929 -580 -33 7 1979-2014 Coastal Region Onshore

  1. Associated-Dissolved Natural Gas Reserves Extensions, Wet After Lease

    Gasoline and Diesel Fuel Update (EIA)

    Separation ,669 2,660 5,957 10,030 9,630 9,962 1979-2014 Federal Offshore U.S. 90 87 32 229 243 94 1990-2014 Pacific (California) 0 0 0 0 0 0 1979-2014 Gulf of Mexico (Louisiana & Alabama) 90 54 32 146 166 80 1981-2014 Gulf of Mexico (Texas) 0 33 0 83 77 14 1981-2014 Alaska 0 2 3 14 17 8 1979-2014 Lower 48 States 2,669 2,658 5,954 10,016 9,613 9,954 1979-2014 Alabama 0 0 0 0 0 2 1979-2014 Arkansas 0 4 0 11 1 0 1979-2014 California 470 12 74 8 5 0 1979-2014 Coastal Region Onshore 0 0 1 1

  2. Associated-Dissolved Natural Gas Reserves Revision Decreases, Wet After

    Gasoline and Diesel Fuel Update (EIA)

    Lease Separation 2,698 3,964 5,953 6,250 9,821 10,160 1979-2014 Federal Offshore U.S. 517 879 1,393 1,242 830 1,794 1990-2014 Pacific (California) 7 5 18 14 387 20 1979-2014 Gulf of Mexico (Louisiana & Alabama) 442 841 1,152 1,140 360 884 1981-2014 Gulf of Mexico (Texas) 68 33 223 88 83 890 1981-2014 Alaska 5 260 79 198 2,120 553 1979-2014 Lower 48 States 2,693 3,704 5,874 6,052 7,701 9,607 1979-2014 Alabama 1 4 0 6 0 0 1979-2014 Arkansas 0 0 13 9 4 0 1979-2014 California 139 389 1,927

  3. Associated-Dissolved Natural Gas Reserves Revision Increases, Wet After

    Gasoline and Diesel Fuel Update (EIA)

    Lease Separation 5,522 4,983 8,088 8,162 8,534 13,264 1979-2014 Federal Offshore U.S. 854 1,028 1,583 1,894 829 1,701 1990-2014 Pacific (California) 71 23 39 16 6 19 1979-2014 Gulf of Mexico (Louisiana & Alabama) 693 907 1,410 1,489 623 812 1981-2014 Gulf of Mexico (Texas) 90 98 134 389 200 870 1981-2014 Alaska 1,696 236 843 495 38 179 1979-2014 Lower 48 States 3,826 4,747 7,245 7,667 8,496 13,085 1979-2014 Alabama 11 6 2 18 20 76 1979-2014 Arkansas 5 12 50 5 88 14 1979-2014 California

  4. Associated-Dissolved Natural Gas Proved Reserves, Wet After Lease

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

    Separation, as of Dec. 31 Data Series: Proved Reserves as of Dec. 31 Adjustments Revision Increases Revision Decreases Sales Acquisitions Extensions New Field Discoveries New Reservoir Discoveries in Old Fields Estimated Production Period: Annual Download Series History Download Series History Definitions, Sources & Notes Definitions, Sources & Notes Show Data By: Data Series Area 2009 2010 2011 2012 2013 2014 View History U.S. 33,383 35,746 42,823 53,156 58,490 69,117 1979-2014

  5. Photoimageable composition

    DOE Patents [OSTI]

    Dentinger, Paul; Krafick, Karen L.; Simison, Kelby Liv

    2005-02-22

    The use of photoacid generators including an alkoxyphenylphenyliodonium salt and/or bis(t-butylphenyl)iodonium salt in a photoimageable composition helps improve resolution. Suitable photoimageable compositions includes: (a) a multifuctional polymeric epoxy resin that is dissolved in an organic solvent wherein the epoxy resin comprises oligomers of bisphenol A that is quantitatively protected by glycidyl ether and wherein the oligomers have an average functionality that ranges from about 3 to 12; and a photoacid generator comprising an alkoxyphenylphenyliodonium salt and/or bis(t-butylphenyl)iodonium salt. Preferred alkoxyphenylphenyliodonium salts include 4-octyloxyphenyl phenyliodonium hexafluoroantimonate and 4-methoxyphenyl phenyliodonium hexafluoroantimonate. The photoimageable composition is particularly suited for producing high aspect ratio microstructures.

  6. Photoimageable composition

    DOE Patents [OSTI]

    Simison, Kelby Liv; Dentinger, Paul

    2003-11-11

    The use of selected buffering amines in a photoimageable composition prevents process bias which with conventional photoresists causes designed features to be distorted, especially in corners and high resolution features. It is believed that the amines react with the catalysts, e.g., photoacids, generated to create an inert salt. The presence of the amines also increases resolution. Suitable photoimageable compositions includes: (a) a multifunctional polymeric epoxy resin that is dissolved in an organic solvent wherein the epoxy resin comprises oligomers of bisphenol A that is quantitatively protected by glycidyl ether and wherein the oligomers have an average functionality that ranges from about 3 to 12; (b) a photoactive compound; and (c) an amine that is selected from the group consisting of triisobutylamine, 1,8-bis(dimethylamino)naphthalene (also known as PROTON SPONGET.TM.), 2,2'-diazabicyclo[2.2.2] octane and mixtures thereof. The photoimageable composition is particularly suited for producing high aspect ratio metal microstructures.

  7. Solvent composition and process for the isolation of radium

    DOE Patents [OSTI]

    McDowell, William J. (Knoxville, TN); Case, Gerald N. (Oak Ridge, TN)

    1990-01-01

    A solvent extraction composition for radium including a high molecular wet organophilic carboxylic acid and an organophilic macrocycle dissolved in a suitable solvent.

  8. Diagnostic compositions

    SciTech Connect (OSTI)

    Burch, W.M.

    1981-07-28

    The invention discloses diagnostic compositions for use in obtaining images of a patient's lungs. The basic components of the composition of the invention are sodium pertechnetate which is radioactive and ethanol. This composition may be combusted and the resulting products cooled or alternatively the composition may be inserted into a pressure vessel with an aerosol. In both cases a gas like mixture results. A particular advantage is that a patient is able to breath the mixture of the invention in a normal way and does not need to undergo any training in inhalation.

  9. Multifunctional Nanowire/film Composites based Bi-modular Sensors for In-situ and Real-time High Temperature Gas Detection

    SciTech Connect (OSTI)

    Gao, Pu-Xian; Lei, Yu

    2013-06-01

    This final report to the Department of Energy/National Energy Technology Laboratory for DE-FE0000870 covers the period from 2009 to June, 2013 and summarizes the main research accomplishments, which can be divided in sensing materials innovation, bimodular sensor demonstration, and new understanding and discoveries. As a matter of fact, we have successfully completed all the project tasks in June 1, 2013, and presented the final project review presentation on the 9th of July, 2013. Specifically, the major accomplishments achieved in this project include: 1) Successful development of a new class of high temperature stable gas sensor nanomaterials based on composite nano-array strategy in a 3D or 2D fashion using metal oxides and perovskite nanostructures. 2) Successful demonstration of bimodular nanosensors using 2D nanofibrous film and 3D composite nanowire arrays using electrical resistance mode and electrochemical electromotive force mode. 3) Series of new discoveries and understandings based on the new composite nanostructure platform toward enhancing nanosensor performance in terms of stability, selectivity, sensitivity and mass flux sensing. In this report, we highlight some results toward these accomplishments.

  10. Method and apparatus for the application of textile treatment compositions to textile materials

    DOE Patents [OSTI]

    Argyle, M.D.; Propp, W.A.

    1998-01-20

    A system is described for applying textile treatment compositions to textile materials. A conduit member is provided which includes a passageway having a first end, a second end, and a medial portion with a constricted (narrowed) region. The passageway may include at least one baffle having an opening there through. A yarn strand is then moved through the passageway. A textile treatment composition (a sizing agent or dye) dissolved in a carrier medium (a supercritical fluid or liquefied gas) is thereafter introduced into the constricted region, preferably at an acute angle relative to the passageway. The carrier medium expands inside the passageway which causes delivery of the treatment composition to the yarn. The treated yarn then passes through the baffle (if used) which facilitates drying of the yarn. During this process, a carrier gas can be introduced into the passageway to ensure the production of a smooth, dry product. 1 fig.

  11. Method and apparatus for the application of textile treatment compositions to textile materials

    DOE Patents [OSTI]

    Argyle, Mark D.; Propp, William Alan

    1998-01-01

    A system for applying textile treatment compositions to textile materials. A conduit member is provided which includes a passageway having a first end, a second end, and a medial portion with a constricted (narrowed) region. The passageway may include at least one baffle having an opening therethrough. A yarn strand is then moved through the passageway. A textile treatment composition (a sizing agent or dye) dissolved in a carrier medium (a supercritical fluid or liquified gas) is thereafter introduced into the constricted region, preferably at an acute angle relative to the passageway. The carrier medium expands inside the passageway which causes delivery of the treatment composition to the yarn. The treated yarn then passes through the baffle (if used) which facilitates drying of the yarn. During this process, a carrier gas can be introduced into the passageway to ensure the production of a smooth, dry product.

  12. Vacuum flash evaporated polymer composites

    DOE Patents [OSTI]

    Affinito, John D. (Kennewick, WA); Gross, Mark E. (Pasco, WA)

    1997-01-01

    A method for fabrication of polymer composite layers in a vacuum is disclosed. More specifically, the method of dissolving salts in a monomer solution, vacuum flash evaporating the solution, condensing the flash evaporated solution as a liquid film, and forming the condensed liquid film into a polymer composite layer on a substrate is disclosed.

  13. Vacuum flash evaporated polymer composites

    DOE Patents [OSTI]

    Affinito, J.D.; Gross, M.E.

    1997-10-28

    A method for fabrication of polymer composite layers in a vacuum is disclosed. More specifically, the method of dissolving salts in a monomer solution, vacuum flash evaporating the solution, condensing the flash evaporated solution as a liquid film, and forming the condensed liquid film into a polymer composite layer on a substrate is disclosed.

  14. CA, Los Angeles Basin Onshore Natural Gas Reserves Summary as...

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

    91 92 102 98 90 84 1979-2014 Natural Gas Nonassociated, Wet After Lease Separation 0 0 0 0 0 0 1979-2014 Natural Gas Associated-Dissolved, Wet After Lease Separation 91 92 102 98 ...

  15. Mississippi Natural Gas Reserves Summary as of Dec. 31

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

    22 858 868 612 600 563 1979-2014 Natural Gas Nonassociated, Wet After Lease Separation 884 822 806 550 557 505 1979-2014 Natural Gas Associated-Dissolved, Wet After Lease ...

  16. Miscellaneous Natural Gas Reserves Summary as of Dec. 31

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

    349 363 393 233 188 185 1979-2014 Natural Gas Nonassociated, Wet After Lease Separation 271 353 270 219 169 167 1979-2014 Natural Gas Associated-Dissolved, Wet After Lease ...

  17. Montana Natural Gas Reserves Summary as of Dec. 31

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

    93 959 792 616 590 686 1979-2014 Natural Gas Nonassociated, Wet After Lease Separation 681 657 522 327 286 361 1979-2014 Natural Gas Associated-Dissolved, Wet After Lease ...

  18. US crude oil, natural gas, and natural gas liquids reserves

    SciTech Connect (OSTI)

    Not Available

    1990-10-05

    This report presents estimates of proved reserves of crude oil, natural gas, and natural gas liquids as of December 31, 1989, and production volumes for the year 1989 for the total United States and for selected states and state sub-divisions. Estimates are presented for the following four categories of natural gas: total gas (wet after lease separation), its two major components (nonassociated and associated-dissolved gas), and total dry gas (wet gas adjusted for the removal of liquids at natural gas processing plants). In addition, two components of natural gas liquids, lease condensate and natural gas plant liquids, have their reserves and production reported separately. Also included is information on indicated additional crude oil reserves and crude oil, natural gas, and lease condensate reserves in nonproducing reservoirs. 28 refs., 9 figs., 15 tabs.

  19. Composition of carbonaceous smoke particles from prescribed burning of a Canadian boreal forest: 1. Organic aerosol characterization by gas chromatography

    SciTech Connect (OSTI)

    Mazurek, M.A.; Laterza, C.; Newman, L.; Daum, P.; Cofer, W.R. III; Levine, J.S.; Winstead, E.L.

    1995-06-01

    In this study we examine the molecular organic constituents (C8 to C40 lipid compounds) collected as smoke particles from a Canadian boreal forest prescribed burn. Of special interest are (1) the molecular identity of polar organic aerosols, and (2) the amount of polar organic matter relative to the total mass of aerosol particulate carbon. Organic extracts of smoke aerosol particles show complex distributions of the lipid compounds when analyzed by capillary gas chromatography/mass spectrometry. The molecular constituents present as smoke aerosol are grouped into non-polar (hydrocarbons) and polar {minus}2 oxygen atoms) subtractions. The dominant chemical species found in the boreal forest smoke aerosol are unaltered resin compounds (C20 terpenes) which are abundant in unburned conifer wood, plus thermally altered wood lignins and other polar aromatic hydrocarbons. Our results show that smoke aerosols contain molecular tracers which are related to the biofuel consumed. These smoke tracers can be related structurally back to the consumed softwood and hardwood vegetation. In addition, combustion of boreal forest materials produces smoke aerosol particles that are both oxygen-rich and chemically complex, yielding a carbonaceous aerosol matrix that is enriched in polar substances. As a consequence, emissions of carbonaceous smoke particles from large-scale combustion of boreal forest land may have a disproportionate effect on regional atmospheric chemistry and on cloud microphysical processes.

  20. FLOWSHEET EVALUATION FOR THE DISSOLVING AND NEUTRALIZATION OF SODIUM REACTOR EXPERIMENT USED NUCLEAR FUEL

    SciTech Connect (OSTI)

    Daniel, W. E.; Hansen, E. K.; Shehee, T. C.

    2012-10-30

    This report includes the literature review, hydrogen off-gas calculations, and hydrogen generation tests to determine that H-Canyon can safely dissolve the Sodium Reactor Experiment (SRE; thorium fuel), Ford Nuclear Reactor (FNR; aluminum alloy fuel), and Denmark Reactor (DR-3; silicide fuel, aluminum alloy fuel, and aluminum oxide fuel) assemblies in the L-Bundles with respect to the hydrogen levels in the projected peak off-gas rates. This is provided that the number of L-Bundles charged to the dissolver is controlled. Examination of SRE dissolution for potential issues has aided in predicting the optimal batching scenario. The calculations detailed in this report demonstrate that the FNR, SRE, and DR-3 used nuclear fuel (UNF) are bounded by MURR UNF and may be charged using the controls outlined for MURR dissolution in a prior report.

  1. Yucca Mountain Area Saturated Zone Dissolved Organic Carbon Isotopic Data

    SciTech Connect (OSTI)

    Thomas, James; Decker, David; Patterson, Gary; Peterman, Zell; Mihevc, Todd; Larsen, Jessica; Hershey, Ronald

    2007-06-25

    Groundwater samples in the Yucca Mountain area were collected for chemical and isotopic analyses and measurements of water temperature, pH, specific conductivity, and alkalinity were obtained at the well or spring at the time of sampling. For this project, groundwater samples were analyzed for major-ion chemistry, deuterium, oxygen-18, and carbon isotopes of dissolved inorganic carbon (DIC) and dissolved organic carbon (DOC). The U.S. Geological Survey (USGS) performed all the fieldwork on this project including measurement of water chemistry field parameters and sample collection. The major ions dissolved in the groundwater, deuterium, oxygen-18, and carbon isotopes of dissolved inorganic carbon (DIC) were analyzed by the USGS. All preparation and processing of samples for DOC carbon isotopic analyses and geochemical modeling were performed by the Desert Research Institute (DRI). Analysis of the DOC carbon dioxide gas produced at DRI to obtain carbon-13 and carbon-14 values was conducted at the University of Arizona Accelerator Facility (a NSHE Yucca Mountain project QA qualified contract facility). The major-ion chemistry, deuterium, oxygen-18, and carbon isotopes of DIC were used in geochemical modeling (NETPATH) to determine groundwater sources, flow paths, mixing, and ages. The carbon isotopes of DOC were used to calculate groundwater ages that are independent of DIC model corrected carbon-14 ages. The DIC model corrected carbon-14 calculated ages were used to evaluate groundwater travel times for mixtures of water including water beneath Yucca Mountain. When possible, groundwater travel times were calculated for groundwater flow from beneath Yucca Mountain to down gradient sample sites. DOC carbon-14 groundwater ages were also calculated for groundwaters in the Yucca Mountain area. When possible, groundwater travel times were estimated for groundwater flow from beneath Yucca Mountain to down gradient groundwater sample sites using the DOC calculated groundwater ages. The DIC calculated groundwater ages were compared with DOC calculated groundwater ages and both of these ages were compared to travel times developed in ground-water flow and transport models. If nuclear waste is stored in Yucca Mountain, the saturated zone is the final barrier against the release of radionuclides to the environment. The most recent rendition of the TSPA takes little credit for the presence of the saturated zone and is a testament to the inadequate understanding of this important barrier. If radionuclides reach the saturated zone beneath Yucca Mountain, then there is a travel time before they would leave the Yucca Mountain area and flow down gradient to the Amargosa Valley area. Knowing how long it takes groundwater in the saturated zone to flow from beneath Yucca Mountain to down gradient areas is critical information for potential radionuclide transport. Radionuclide transport in groundwater may be the quickest pathway for radionuclides in the proposed Yucca Mountain repository to reach land surface by way of groundwater pumped in Amargosa Valley. An alternative approach to ground-water flow and transport models to determine the travel time of radionuclides from beneath Yucca Mountain to down gradient areas in the saturated zone is by carbon-14 dating of both inorganic and organic carbon dissolved in the groundwater. A standard method of determining ground-water ages is to measure the carbon-13 and carbon-14 of DIC in the groundwater and then correct the measured carbon-14 along a flow path for geochemical reactions that involve carbon containing phases. These geochemical reactions are constrained by carbon-13 and isotopic fractionations. Without correcting for geochemical reactions, the ground-water ages calculated from only the differences in carbon-14 measured along a flow path (assuming the decrease in carbon-14 is due strictly to radioactive decay) could be tens of thousands of years too old. The computer program NETPATH, developed by the USGS, is the best geochemical program for correcting carbon-14 activities for geochemical r

  2. Liquid crystalline composites containing phyllosilicates

    DOE Patents [OSTI]

    Chaiko, David J.

    2004-07-13

    The present invention provides phyllosilicate-polymer compositions which are useful as liquid crystalline composites. Phyllosilicate-polymer liquid crystalline compositions of the present invention can contain a high percentage of phyllosilicate while at the same time be transparent. Because of the ordering of the particles liquid crystalline composite, liquid crystalline composites are particularly useful as barriers to gas transport.

  3. Liquid crystalline composites containing phyllosilicates

    DOE Patents [OSTI]

    Chaiko; David J.

    2007-05-08

    The present invention provides barrier films having reduced gas permeability for use in packaging and coating applications. The barrier films comprise an anisotropic liquid crystalline composite layer formed from phyllosilicate-polymer compositions. Phyllosilicate-polymer liquid crystalline compositions of the present invention can contain a high percentage of phyllosilicate while remaining transparent. Because of the ordering of the particles in the liquid crystalline composite, barrier films comprising liquid crystalline composites are particularly useful as barriers to gas transport.

  4. Method for dissolving delta-phase plutonium

    DOE Patents [OSTI]

    Karraker, David G.

    1992-01-01

    A process for dissolving plutonium, and in particular, delta-phase plutonium. The process includes heating a mixture of nitric acid, hydroxylammonium nitrate (HAN) and potassium fluoride to a temperature between 40.degree. and 70.degree. C., then immersing the metal in the mixture. Preferably, the nitric acid has a concentration of not more than 2M, the HAN approximately 0.66M, and the potassium fluoride 0.1M. Additionally, a small amount of sulfamic acid, such as 0.1M can be added to assure stability of the HAN in the presence of nitric acid. The oxide layer that forms on plutonium metal may be removed with a non-oxidizing acid as a pre-treatment step.

  5. DISSOLVED CONCENTRATION LIMITS OF RADIOACTIVE ELEMENTS

    SciTech Connect (OSTI)

    P. Bernot

    2005-07-13

    The purpose of this study is to evaluate dissolved concentration limits (also referred to as solubility limits) of elements with radioactive isotopes under probable repository conditions, based on geochemical modeling calculations using geochemical modeling tools, thermodynamic databases, field measurements, and laboratory experiments. The scope of this activity is to predict dissolved concentrations or solubility limits for elements with radioactive isotopes (actinium, americium, carbon, cesium, iodine, lead, neptunium, plutonium, protactinium, radium, strontium, technetium, thorium, and uranium) relevant to calculated dose. Model outputs for uranium, plutonium, neptunium, thorium, americium, and protactinium are provided in the form of tabulated functions with pH and log fCO{sub 2} as independent variables, plus one or more uncertainty terms. The solubility limits for the remaining elements are either in the form of distributions or single values. Even though selection of an appropriate set of radionuclides documented in Radionuclide Screening (BSC 2002 [DIRS 160059]) includes actinium, transport of Ac is not modeled in the total system performance assessment for the license application (TSPA-LA) model because of its extremely short half-life. Actinium dose is calculated in the TSPA-LA by assuming secular equilibrium with {sup 231}Pa (Section 6.10); therefore, Ac is not analyzed in this report. The output data from this report are fundamental inputs for TSPA-LA used to determine the estimated release of these elements from waste packages and the engineered barrier system. Consistent modeling approaches and environmental conditions were used to develop solubility models for the actinides discussed in this report. These models cover broad ranges of environmental conditions so they are applicable to both waste packages and the invert. Uncertainties from thermodynamic data, water chemistry, temperature variation, and activity coefficients have been quantified or otherwise addressed.

  6. METHOD FOR DISSOLVING LANTHANUM FLUORIDE CARRIER FOR PLUTONIUM

    DOE Patents [OSTI]

    Koshland, D.E. Jr.; Willard, J.E.

    1961-08-01

    A method is described for dissolving lanthanum fluoride precipitates which is applicable to lanthanum fluoride carrier precipitation processes for recovery of plutonium values from aqueous solutions. The lanthanum fluoride precipitate is contacted with an aqueous acidic solution containing dissolved zirconium in the tetravalent oxidation state. The presence of the zirconium increases the lanthanum fluoride dissolved and makes any tetravalent plutonium present more readily oxidizable to the hexavalent state. (AEC)

  7. Etiology of gas bubble disease

    SciTech Connect (OSTI)

    Bouck, G.R.

    1980-11-01

    Gas bubble disease is a noninfectious, physically induced process caused by uncompensated hyperbaric pressure of total dissolved gases. When pressure compensation is inadequate, dissolved gases may form emboli (in blood) and emphysema (in tissues). The resulting abnormal physical presence of gases can block blood vessels (hemostasis) or tear tissues, and may result in death. Population mortality is generally skewed, in that the median time to death occurs well before the average time to death. Judged from mortality curves, three stages occur in gas bubble disease: (1) a period of gas pressure equilibrium, nonlethal cavitation, and increasing morbidity; (2) a period of rapid and heavy mortality; and (3) a period of protracted survival, despite lesions, and dysfunction that eventually terminates in total mortality. Safe limits for gas supersaturation depend on species tolerance and on factors that differ among hatcheries and rivers, between continuous and intermittent exposures, and across ranges of temperature and salinity.

  8. U.S. crude oil, natural gas, and natural gas liquids reserves 1997 annual report

    SciTech Connect (OSTI)

    Wood, John H.; Grape, Steven G.; Green, Rhonda S.

    1998-12-01

    This report presents estimates of proved reserves of crude oil, natural gas, and natural gas liquids as of December 31, 1997, as well as production volumes for the US and selected States and State subdivisions for the year 1997. Estimates are presented for the following four categories of natural gas: total gas (wet after lease separation), nonassociated gas and associated-dissolved gas (which are the two major types of wet natural gas), and total dry gas (wet gas adjusted for the removal of liquids at natural gas processing plants). In addition, reserve estimates for two types of natural gas liquids, lease condensate and natural gas plant liquids, are presented. Also included is information on indicated additional crude oil reserves and crude oil, natural gas, and lease condensate reserves in nonproducing reservoirs. A discussion of notable oil and gas exploration and development activities during 1997 is provided. 21 figs., 16 tabs.

  9. Production of biodiesel using expanded gas solvents

    SciTech Connect (OSTI)

    Ginosar, Daniel M; Fox, Robert V; Petkovic, Lucia M

    2009-04-07

    A method of producing an alkyl ester. The method comprises providing an alcohol and a triglyceride or fatty acid. An expanding gas is dissolved into the alcohol to form a gas expanded solvent. The alcohol is reacted with the triglyceride or fatty acid in a single phase to produce the alkyl ester. The expanding gas may be a nonpolar expanding gas, such as carbon dioxide, methane, ethane, propane, butane, pentane, ethylene, propylene, butylene, pentene, isomers thereof, and mixtures thereof, which is dissolved into the alcohol. The gas expanded solvent may be maintained at a temperature below, at, or above a critical temperature of the expanding gas and at a pressure below, at, or above a critical pressure of the expanding gas.

  10. Methanex, Hoechst Celanese dissolve methanol partnership

    SciTech Connect (OSTI)

    Morris, G.D.L.

    1993-03-31

    One of the many joint venture alliances recently announced in the petrochemical sector is ending in divorce. Hoechst Celanese Chemical (Dallas) and Methanex Corp. (Vancouver) are in the process of dissolving the partnership they had formed to restart Hoechst Celanese's methanol plant at Clear Lake, TX. Hoechst Celanese says it is actively seeking replacement partners and has several likely prospects, while Methanex is concentrating on its other ventures. Those include its just-completed acquisition of Fletcher Challenge's (Auckland, NZ) methanol business and a joint venture with American Cyanamid to convert an ammonia plant at Fortier, LA to methanol. Methanex will still be the world's largest producer of methanol. Officially, the negotiations between Methanex and Hoechst Celanese just broke down over the last month or so,' says Steve Yurich, operations manager for the Clear Lake plant. Market sources, however, say that Methanex found itself with too many irons in the fire' and pulled out before it ran into financial or perhaps even antitrust difficulties.

  11. TX, State Offshore Natural Gas Reserves Summary as of Dec. 31

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

    64 131 118 94 59 42 1981-2014 Natural Gas Nonassociated, Wet After Lease Separation 161 128 113 88 56 42 1981-2014 Natural Gas Associated-Dissolved, Wet After Lease Separation 3 3 ...

  12. LA, State Offshore Natural Gas Reserves Summary as of Dec. 31

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

    728 386 519 519 420 341 1981-2014 Natural Gas Nonassociated, Wet After Lease Separation 215 279 468 391 332 273 1981-2014 Natural Gas Associated-Dissolved, Wet After Lease ...

  13. Iodine Pathways and Off-Gas Stream Characteristics for Aqueous Reprocessing Plants – A Literature Survey and Assessment

    SciTech Connect (OSTI)

    R. T. Jubin; D. M. Strachan; N. R. Soelberg

    2013-09-01

    Used nuclear fuel is currently being reprocessed in only a few countries, notably France, England, Japan, and Russia. The need to control emissions of the gaseous radionuclides to the air during nuclear fuel reprocessing has already been reported for the entire plant. But since the gaseous radionuclides can partition to various different reprocessing off-gas streams, for example, from the head end, dissolver, vessel, cell, and melter, an understanding of each of these streams is critical. These off-gas streams have different flow rates and compositions and could have different gaseous radionuclide control requirements, depending on how the gaseous radionuclides partition. This report reviews the available literature to summarize specific engineering data on the flow rates, forms of the volatile radionuclides in off-gas streams, distributions of these radionuclides in these streams, and temperatures of these streams. This document contains an extensive bibliography of the information contained in the open literature.

  14. Acidic gas capture by diamines

    DOE Patents [OSTI]

    Rochelle, Gary; Hilliard, Marcus

    2011-05-10

    Compositions and methods related to the removal of acidic gas. In particular, the present disclosure relates to a composition and method for the removal of acidic gas from a gas mixture using a solvent comprising a diamine (e.g., piperazine) and carbon dioxide. One example of a method may involve a method for removing acidic gas comprising contacting a gas mixture having an acidic gas with a solvent, wherein the solvent comprises piperazine in an amount of from about 4 to about 20 moles/kg of water, and carbon dioxide in an amount of from about 0.3 to about 0.9 moles per mole of piperazine.

  15. Federal Offshore, Pacific (California) Natural Gas Reserves Summary as of

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

    Dec. 31 740 725 711 652 264 243 1979-2014 Natural Gas Nonassociated, Wet After Lease Separation 9 3 0 0 0 0 1979-2014 Natural Gas Associated-Dissolved, Wet After Lease Separation 731 722 711 652 264 243 1979-2014 Dry Natural Gas 739 724 710 651 261 240

  16. Florida Natural Gas Reserves Summary as of Dec. 31

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

    7 56 6 16 15 0 1979-2014 Natural Gas Nonassociated, Wet After Lease Separation 0 26 4 16 14 0 1979-2014 Natural Gas Associated-Dissolved, Wet After Lease Separation 7 30 2 0 1 0 1979-2014 Dry Natural Gas 7 56 6 16 15 0

  17. New York Natural Gas Reserves Summary as of Dec. 31

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

    196 281 253 184 144 143 1979-2014 Natural Gas Nonassociated, Wet After Lease Separation 196 271 245 178 138 138 1979-2014 Natural Gas Associated-Dissolved, Wet After Lease Separation 0 10 8 6 6 5 1979-2014 Dry Natural Gas 196 281 253 184 144 14

  18. Determination of landfill gas composition and pollutant emission rates at fresh kills landfill. Volume 2. Appendices to project report. Final report

    SciTech Connect (OSTI)

    1995-12-07

    Air emissions of landfill gas pollutants at Fresh Kills Landfill, located in Staten Island, NY, were estimated based on three weeks of sampling of flow, concentration, and flux at passive vents, gas extraction wells, gas collection plant headers, and the landfill surface conducted by Radian Corporation in 1995. Emission rates were estimated for 202 pollutants, including hydrogen sulfide, mercury vapor, speciated volatile organic compounds, methane, and carbon dioxide. Results indicate that large amounts of mercury enter the methane, and carbon dioxide. Results indicate that large amounts of mercury enter the methane recovery plant. Emission factors based on the results are presented.

  19. US crude oil, natural gas, and natural gas liquids reserves, 1992 annual report

    SciTech Connect (OSTI)

    Not Available

    1993-10-18

    This report presents estimates of proved reserves of crude oil, natural gas, and natural gas liquids as of December 31, 1992, as well as production volumes for the United States, and selected States and State subdivisions for the year 1992. Estimates are presented for the following four categories of natural gas: total gas (wet after lease separation), its two major components (nonassociated and associated-dissolved gas), and total dry gas (wet gas adjusted for the removal of liquids at natural gas processing plants). In addition, two components of natural gas liquids, lease condensate and natural gas plant liquids, have their reserves and production data presented. Also included is information on indicated additional crude oil reserves and crude oil, natural gas, and lease condensate reserves in nonproducing reservoirs. A discussion of notable oil and gas exploration and development activities during 1992 is provided.

  20. Neptunium estimation in dissolver and high-level-waste solutions

    SciTech Connect (OSTI)

    Pathak, P.N.; Prabhu, D.R.; Kanekar, A.S.; Manchanda, V.K.

    2008-07-01

    This papers deals with the optimization of the experimental conditions for the estimation of {sup 237}Np in spent-fuel dissolver/high-level waste solutions using thenoyltrifluoroacetone as the extractant. (authors)

  1. Evaluation for the Frequency of Gas Sampling for the High Burnup...

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

    The report provides a technically based gas sampling frequency strategy for the ... could change gas composition culminates in an adaptive gas sampling frequency strategy. ...

  2. Institute for Advanced Composites Manufacturing Innovation-Inaugural...

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

    ... compressed-gas storage; design, modeling, & simulation; and composite materials & process. ... in wind-turbine composites and manufacturing to the institute to work with previous ...

  3. Gas-sensing optrode

    DOE Patents [OSTI]

    Hirschfeld, T.B.

    1988-04-12

    An optrode is provided for sensing dissolved gases or volatile components of a solution. A fiber optic is provided through which light from an associated light source is transmitted from a first end to a second end. A bubble forming means, such as a tube, is attached to the second end of the fiber optic, and an indicator material is disposed in cooperation with the bubble forming means adjacent to the second end of the fiber optic such that it is illuminated by light emanating from the second end. The bubble forming means causes a gas bubble to form whenever the optrode is immersed in the fluid. The gas bubble separates the indicator material from the fluid. Gases, or other volatile components, of the fluid are sensed as they diffuse across the gas bubble from the fluid to the indicator material. 3 figs.

  4. Gas-sensing optrode

    DOE Patents [OSTI]

    Hirschfeld, Tomas B.

    1988-01-01

    An optrode is provided for sensing dissolved gases or volatile components of a solution. A fiber optic is provided through which light from an associated light source is transmitted from a first end to a second end. A bubble forming means, such as a tube, is attached to the second end of the fiber optic, and an indicator material is disposed in cooperation with the bubble forming means adjacent to the second end of the fiber optic such that it is illuminated by light emanating from the second end. The bubble forming means causes a gas bubble to form whenever the optrode is immersed in the fluid. The gas bubble separates the indicator material from the fluid. Gases, or other volatile components, of the fluid are sensed as they diffuse across the gas bubble from the fluid to the indicator material.

  5. Noble Gas Geochemistry In Thermal Springs | Open Energy Information

    Open Energy Info (EERE)

    Noble Gas Geochemistry In Thermal Springs Abstract The composition of noble gases in both gas and water samples collected from Horseshoe Spring, Yellowstone National Park, was...

  6. Gas temperature and concentration measurements in the vicinity...

    Office of Scientific and Technical Information (OSTI)

    Gas temperature and concentration measurements in the vicinity of a burningdecomposing carbon-epoxy aircraft composite material. Citation Details In-Document Search Title: Gas ...

  7. Strontium isotope quantification of siderite, brine and acid mine drainage contributions to abandoned gas well discharges in the Appalachian Plateau

    SciTech Connect (OSTI)

    Chapman, Elizabeth C.; Capo, Rosemary C.; Stewart, Brian W.; Hedin, Robert S.; Weaver, Theodore J.; Edenborn, Harry M.

    2013-04-01

    Unplugged abandoned oil and gas wells in the Appalachian region can serve as conduits for the movement of waters impacted by fossil fuel extraction. Strontium isotope and geochemical analysis indicate that artesian discharges of water with high total dissolved solids (TDS) from a series of gas wells in western Pennsylvania result from the infiltration of acidic, low Fe (Fe < 10 mg/L) coal mine drainage (AMD) into shallow, siderite (iron carbonate)-cemented sandstone aquifers. The acidity from the AMD promotes dissolution of the carbonate, and metal- and sulfate-contaminated waters rise to the surface through compromised abandoned gas well casings. Strontium isotope mixing models suggest that neither upward migration of oil and gas brines from Devonian reservoirs associated with the wells nor dissolution of abundant nodular siderite present in the mine spoil through which recharge water percolates contribute significantly to the artesian gas well discharges. Natural Sr isotope composition can be a sensitive tool in the characterization of complex groundwater interactions and can be used to distinguish between inputs from deep and shallow contamination sources, as well as between groundwater and mineralogically similar but stratigraphically distinct rock units. This is of particular relevance to regions such as the Appalachian Basin, where a legacy of coal, oil and gas exploration is coupled with ongoing and future natural gas drilling into deep reservoirs.

  8. Simulation Analysis for HB-Line Dissolver Mixing

    SciTech Connect (OSTI)

    Lee, S

    2006-03-22

    In support of the HB-Line Engineering agitator mixing project, flow pattern calculations have been made for a 90{sup o} apart and helical pitch agitator submerged in a flat tank containing dissolver baskets. The work is intended to determine maximum agitator speed to keep the dissolver baskets from contacting the agitator for the nominal tank liquid level. The analysis model was based on one dissolver basket located on the bottom surface of the flat tank for a conservative estimate. The modeling results will help determine acceptable agitator speeds and tank liquid levels to ensure that the dissolver basket is kept from contacting the agitator blade during HB-Line dissolver tank operations. The numerical modeling and calculations have been performed using a computational fluid dynamics approach. Three-dimensional steady-state momentum and continuity equations were used as the basic equations to estimate fluid motion driven by an agitator with four 90{sup o} pitched blades or three flat blades. Hydraulic conditions were fully turbulent (Reynolds number about 1 x 10{sup 5}). A standard two-equation turbulence model ({kappa},{var_epsilon}), was used to capture turbulent eddy motion. The commercial finite volume code, Fluent [5], was used to create a prototypic geometry file with a non-orthogonal mesh. Hybrid meshing was used to fill the computational region between the round-edged tank bottom and agitator regions. The nominal calculations and a series of sensitivity runs were made to investigate the impact of flow patterns on the lifting behavior of the dissolver basket. At high rotational speeds and low tank levels, local turbulent flow reaches the critical condition for the dissolver basket to be picked up from the tank floor and to touch the agitator blades during the tank mixing operations. This is not desirable in terms of mixing performance. The modeling results demonstrate that the flow patterns driven by the agitators considered here are not strong enough to lift up the dissolver basket for the agitator speeds up to 2500 rpm. The results also show that local velocity magnitudes for the three-blade flat plate agitator are at maximum three times smaller than the helical fourblade one. Table 5 and Table 6 summarize the results.

  9. Use of iron salts to control dissolved sulfide in trunk sewers

    SciTech Connect (OSTI)

    Padival, N.A.; Kimbell, W.A. [County Sanitation District of Los Angeles County, Whittier, CA (United States); Redner, J.A. [County Sanitation District of Los Angeles County, Compton, CA (United States)

    1995-11-01

    Sewer headspace H{sub 2}S reduction by precipitating dissolved sulfide in wastewater was investigated using iron salt (FeCl{sub 3} and FeCl{sub 2}). Full-scale experiments were conducted in a 40-km (25 mi) sewer with an average flow of 8.7 m{sup 3}/s (200 mgd). Results were sensitive to total Fe dosages and Fe(III)/Fe(II) blend ratios injected. A concentration of 16 mg/L total Fe and a blend ratio of 1.9:1 [Fe(III):Fe(II)] reduced dissolved sulfide levels by 97%. Total sulfide and headspace H{sub 2}S were reduced by 63% and 79%, respectively. Liquid and gas-phase sulfide reductions were largely due to the effective precipitation of sulfide with Fe(III) and Fe(II) and the limited volatilization of H{sub 2}S, respectively. Oxidation of sulfide in the presence of Fe(II) and minute amounts of O{sub 2} may have occurred. A combination of Fe(III) and Fe(II) proved more effective than either salt alone. By using excess Fe(III), dissolved sulfide can be reduced to undetectable levels. No specific relation between the concentration of Fe or Fe(III)/Fe(II) blend ratio and sewer crown pH was inferred. Iron salts may retard crown corrosion rates by precipitating free sulfide and reducing its release to the sewer headspace as H{sub 2}S. A mechanism to inhibit certain responsible bacteria was not established in the 40-km (25 mi) sewer.

  10. PROCESS OF DISSOLVING FUEL ELEMENTS OF NUCLEAR REACTORS

    DOE Patents [OSTI]

    Wall, E.M.V.; Bauer, D.T.; Hahn, H.T.

    1963-09-01

    A process is described for dissolving stainless-steelor zirconium-clad uranium dioxide fuel elements by immersing the elements in molten lead chloride, adding copper, cuprous chloride, or cupric chloride as a catalyst and passing chlorine through the salt mixture. (AEC)

  11. Exhaust gas clean up process

    DOE Patents [OSTI]

    Walker, R.J.

    1988-06-16

    A method of cleaning an exhaust gas containing particulates, SO/sub 2/ and NO/sub x/ is described. The method involves prescrubbing with water to remove HCl and most of the particulates, scrubbing with an aqueous absorbent containing a metal chelate and dissolved sulfite salt to remove NO/sub x/ and SO/sub 2/, and regenerating the absorbent solution by controlled heating, electrodialysis and carbonate salt addition. The NO/sub x/ is removed as N/sub 2/ gas or nitrogen sulfonate ions and the oxides of sulfur are removed as a valuable sulfate salt. 4 figs.

  12. California Natural Gas Number of Gas and Gas Condensate Wells...

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

    Gas and Gas Condensate Wells (Number of Elements) California Natural Gas Number of Gas and ... Number of Producing Gas Wells Number of Producing Gas Wells (Summary) California Natural ...

  13. California Natural Gas Reserves Summary as of Dec. 31

    Gasoline and Diesel Fuel Update (EIA)

    ,926 2,785 3,042 2,119 2,023 2,260 1979-2014 Natural Gas Nonassociated, Wet After Lease Separation 612 503 510 272 247 273 1979-2014 Natural Gas Associated-Dissolved, Wet After ...

  14. Federal Offshore, Gulf of Mexico, Texas Natural Gas Reserves...

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

    2,451 2,145 1,554 1,497 1,508 1,445 1981-2014 Natural Gas Nonassociated, Wet After Lease Separation 1,822 1,456 1,015 643 535 607 1981-2014 Natural Gas Associated-Dissolved, Wet ...

  15. Michigan Natural Gas Reserves Summary as of Dec. 31

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

    2,805 2,975 2,549 1,781 1,839 1,873 1979-2014 Natural Gas Nonassociated, Wet After Lease Separation 2,728 2,903 2,472 1,687 1,714 1,765 1979-2014 Natural Gas Associated-Dissolved, ...

  16. Kentucky Natural Gas Reserves Summary as of Dec. 31

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

    2,919 2,785 2,128 1,515 1,794 1,753 1979-2014 Natural Gas Nonassociated, Wet After Lease Separation 2,887 2,674 2,030 1,422 1,750 1,704 1979-2014 Natural Gas Associated-Dissolved, ...

  17. NM, East Natural Gas Reserves Summary as of Dec. 31

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

    4,558 4,720 4,884 4,833 5,108 6,434 1979-2014 Natural Gas Nonassociated, Wet After Lease Separation 2,658 2,612 2,475 2,156 1,832 1,977 1979-2014 Natural Gas Associated-Dissolved, ...

  18. Coal beneficiation by gas agglomeration

    DOE Patents [OSTI]

    Wheelock, Thomas D.; Meiyu, Shen

    2003-10-14

    Coal beneficiation is achieved by suspending coal fines in a colloidal suspension of microscopic gas bubbles in water under atmospheric conditions to form small agglomerates of the fines adhered by the gas bubbles. The agglomerates are separated, recovered and resuspended in water. Thereafter, the pressure on the suspension is increased above atmospheric to deagglomerate, since the gas bubbles are then re-dissolved in the water. During the deagglomeration step, the mineral matter is dispersed, and when the pressure is released, the coal portion of the deagglomerated gas-saturated water mixture reagglomerates, with the small bubbles now coming out of the solution. The reagglomerate can then be separated to provide purified coal fines without the mineral matter.

  19. Coal Beneficiation by Gas Agglomeration

    SciTech Connect (OSTI)

    Thomas D. Wheelock; Meiyu Shen

    2000-03-15

    Coal beneficiation is achieved by suspending coal fines in a colloidal suspension of microscopic gas bubbles in water under atmospheric conditions to form small agglomerates of the fines adhered by the gas bubbles. The agglomerates are separated, recovered and resuspended in water. Thereafter, the pressure on the suspension is increased above atmospheric to deagglomerate, since the gas bubbles are then re-dissolved in the water. During the deagglomeration step, the mineral matter is dispersed, and when the pressure is released, the coal portion of the deagglomerated gas-saturated water mixture reagglomerates, with the small bubbles now coming out of the solution. The reagglomerate can then be separated to provide purified coal fines without the mineral matter.

  20. Flue gas desulfurization/denitrification using metal-chelate additives

    DOE Patents [OSTI]

    Harkness, J.B.L.; Doctor, R.D.; Wingender, R.J.

    1985-08-05

    A method of simultaneously removing SO/sub 2/ and NO from oxygen-containing flue gases resulting from the combustion of carbonaceous material by contacting the flue gas with an aqueous scrubber solution containing an aqueous sulfur dioxide sorbent and an active metal chelating agent which promotes a reaction between dissolved SO/sub 2/ and dissolved NO to form hydroxylamine N-sulfonates. The hydroxylamine sulfonates are then separated from the scrubber solution which is recycled. 3 figs.

  1. Flue gas desulfurization/denitrification using metal-chelate additives

    DOE Patents [OSTI]

    Harkness, John B. L.; Doctor, Richard D.; Wingender, Ronald J.

    1986-01-01

    A method of simultaneously removing SO.sub.2 and NO from oxygen-containing flue gases resulting from the combustion of carbonaceous material by contacting the flue gas with an aqueous scrubber solution containing an aqueous sulfur dioxide sorbent and an active metal chelating agent which promotes a reaction between dissolved SO.sub.2 and dissolved NO to form hydroxylamine N-sulfonates. The hydroxylamine sulfonates are then separated from the scrubber solution which is recycled.

  2. CA, Coastal Region Onshore Natural Gas Reserves Summary as of Dec. 31

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

    169 180 173 305 284 277 1979-2014 Natural Gas Nonassociated, Wet After Lease Separation 1 2 1 2 2 8 1979-2014 Natural Gas Associated-Dissolved, Wet After Lease Separation 168 178 172 303 282 269 1979-2014 Dry Natural Gas 163 173 165 290 266 261

  3. CA, State Offshore Natural Gas Reserves Summary as of Dec. 31

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

    57 66 82 66 75 76 1979-2014 Natural Gas Nonassociated, Wet After Lease Separation 4 3 3 1 0 0 1979-2014 Natural Gas Associated-Dissolved, Wet After Lease Separation 53 63 79 65 75 76 1979-2014 Dry Natural Gas 57 66 82 66 75 76

  4. US crude oil, natural gas, and natural gas liquids reserves 1996 annual report

    SciTech Connect (OSTI)

    1997-12-01

    The EIA annual reserves report series is the only source of comprehensive domestic proved reserves estimates. This publication is used by the Congress, Federal and State agencies, industry, and other interested parties to obtain accurate estimates of the Nation`s proved reserves of crude oil, natural gas, and natural gas liquids. These data are essential to the development, implementation, and evaluation of energy policy and legislation. This report presents estimates of proved reserves of crude oil, natural gas, and natural gas liquids as of December 31, 1996, as well as production volumes for the US and selected States and State subdivisions for the year 1996. Estimates are presented for the following four categories of natural gas: total gas (wet after lease separation), nonassociated gas and associated-dissolved gas (which are the two major types of wet natural gas), and total dry gas (wet gas adjusted for the removal of liquids at natural gas processing plants). In addition, reserve estimates for two types of natural gas liquids, lease condensate and natural gas plant liquids, are presented. Also included is information on indicated additional crude oil reserves and crude oil, natural gas, and lease condensate reserves in nonproducing reservoirs. A discussion of notable oil and gas exploration and development activities during 1996 is provided. 21 figs., 16 tabs.

  5. U.S. crude oil, natural gas, and natural gas liquids reserves 1995 annual report

    SciTech Connect (OSTI)

    1996-11-01

    The EIA annual reserves report series is the only source of comprehensive domestic proved reserves estimates. This publication is used by the Congress, Federal and State agencies, industry, and other interested parties to obtain accurate estimates of the Nation`s proved reserves of crude oil, natural gas, and natural gas liquids. These data are essential to the development, implementation, and evaluation of energy policy and legislation. This report presents estimates of proved reserves of crude oil, natural gas, and natural gas liquids as of December 31, 1995, as well as production volumes for the US and selected States and State subdivisions for the year 1995. Estimates are presented for the following four categories of natural gas: total gas (wet after lease separation), nonassociated gas and associated-dissolved gas (which are the two major types of wet natural gas), and total dry gas (wet gas adjusted for the removal of liquids at natural gas processing plants). In addition, reserve estimates for two types of natural gas liquids, lease condensate and natural gas plant liquids, are presented. Also included is information on indicated additional crude oil reserves and crude oil, natural gas, and lease condensate reserves in nonproducing reservoirs. A discussion of notable oil and gas exploration and development activities during 1995 is provided. 21 figs., 16 tabs.

  6. Carbon ion pump for removal of carbon dioxide from combustion gas and other gas mixtures

    DOE Patents [OSTI]

    Aines, Roger D.; Bourcier, William L.

    2014-08-19

    A novel method and system of separating carbon dioxide from flue gas is introduced. Instead of relying on large temperature or pressure changes to remove carbon dioxide from a solvent used to absorb it from flue gas, the ion pump method, as disclosed herein, dramatically increases the concentration of dissolved carbonate ion in solution. This increases the overlying vapor pressure of carbon dioxide gas, permitting carbon dioxide to be removed from the downstream side of the ion pump as a pure gas. The ion pumping may be obtained from reverse osmosis, electrodialysis, thermal desalination methods, or an ion pump system having an oscillating flow in synchronization with an induced electric field.

  7. Carbon ion pump for removal of carbon dioxide from combustion gas and other gas mixtures

    DOE Patents [OSTI]

    Aines, Roger D.; Bourcier, William L.

    2010-11-09

    A novel method and system of separating carbon dioxide from flue gas is introduced. Instead of relying on large temperature or pressure changes to remove carbon dioxide from a solvent used to absorb it from flue gas, the ion pump method, as disclosed herein, dramatically increases the concentration of dissolved carbonate ion in solution. This increases the overlying vapor pressure of carbon dioxide gas, permitting carbon dioxide to be removed from the downstream side of the ion pump as a pure gas. The ion pumping may be obtained from reverse osmosis, electrodialysis, thermal desalination methods, or an ion pump system having an oscillating flow in synchronization with an induced electric field.

  8. Ohio Natural Gas Reserves Summary as of Dec. 31

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

    896 832 758 1,235 3,201 7,193 1979-2014 Natural Gas Nonassociated, Wet After Lease Separation 799 742 684 1,012 2,887 6,985 1979-2014 Natural Gas Associated-Dissolved, Wet After Lease Separation 97 90 74 223 314 208 1979-2014 Dry Natural Gas 896 832 758 1,233 3,161 6,72

  9. TX, RRC District 1 Associated-Dissolved Natural Gas Proved Reserves, Wet

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

    After Lease Separation 67 267 900 2,625 3,676 4,698 1979-2014 Adjustments -2 -15 -15 70 156 140 1979-2014 Revision Increases 4 29 119 335 488 702 1979-2014 Revision Decreases 3 16 64 215 172 397 1979-2014 Sales 0 0 10 5 82 42 2000-2014 Acquisitions 0 6 9 12 126 65 2000-2014 Extensions 14 148 601 1,599 771 902 1979-2014 New Field Discoveries 0 63 22 38 2 0 1979-2014 New Reservoir Discoveries in Old Fields 0 0 2 1 11 16 1979-2014 Estimated Production 6 15 31 110 249 36

  10. TX, RRC District 10 Associated-Dissolved Natural Gas Proved Reserves, Wet

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

    After Lease Separation 610 569 898 934 1,084 1,214 1979-2014 Adjustments 20 -20 -24 42 2 48 1979-2014 Revision Increases 89 97 293 84 219 219 1979-2014 Revision Decreases 49 193 41 310 384 310 1979-2014 Sales 8 0 40 0 13 41 2000-2014 Acquisitions 18 8 6 49 248 133 2000-2014 Extensions 106 124 204 261 159 206 1979-2014 New Field Discoveries 0 0 0 0 0 0 1979-2014 New Reservoir Discoveries in Old Fields 0 0 0 0 18 0 1979-2014 Estimated Production 48 57 69 90 99 125

  11. TX, RRC District 2 Onshore Associated-Dissolved Natural Gas Proved

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

    Reserves, Wet After Lease Separation 72 134 924 1,999 2,292 2,722 1979-2014 Adjustments 15 -13 57 23 -56 44 1979-2014 Revision Increases 8 35 61 230 388 272 1979-2014 Revision Decreases 30 15 21 157 652 198 1979-2014 Sales 0 0 8 1 81 578 2000-2014 Acquisitions 0 3 235 42 118 595 2000-2014 Extensions 11 67 440 1,022 769 515 1979-2014 New Field Discoveries 12 1 0 0 0 0 1979-2014 New Reservoir Discoveries in Old Fields 0 0 86 53 23 114 1979-2014 Estimated Production 16 16 60 137 216 33

  12. TX, RRC District 3 Onshore Associated-Dissolved Natural Gas Proved

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

    Reserves, Wet After Lease Separation 476 466 399 464 797 723 1979-2014 Adjustments -14 34 1 81 145 -256 1979-2014 Revision Increases 69 98 58 74 280 128 1979-2014 Revision Decreases 57 54 52 57 104 70 1979-2014 Sales 34 40 43 18 29 17 2000-2014 Acquisitions 57 11 6 30 60 62 2000-2014 Extensions 38 7 9 14 47 154 1979-2014 New Field Discoveries 8 0 11 4 3 12 1979-2014 New Reservoir Discoveries in Old Fields 0 0 0 1 3 0 1979-2014 Estimated Production 70 66 57 64 72 87

  13. TX, RRC District 4 Onshore Associated-Dissolved Natural Gas Proved

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

    Reserves, Wet After Lease Separation 96 91 61 99 63 191 1979-2014 Adjustments 5 -1 11 97 -42 -8 1979-2014 Revision Increases 14 14 25 24 35 38 1979-2014 Revision Decreases 32 13 23 30 24 16 1979-2014 Sales 0 1 34 50 11 1 2000-2014 Acquisitions 0 1 4 4 2 114 2000-2014 Extensions 1 9 0 9 13 14 1979-2014 New Field Discoveries 0 0 0 0 0 0 1979-2014 New Reservoir Discoveries in Old Fields 0 0 0 0 0 0 1979-2014 Estimated Production 19 14 13 16 9 13

  14. TX, RRC District 5 Associated-Dissolved Natural Gas Proved Reserves, Wet

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

    After Lease Separation 21 8 40 53 177 185 1979-2014 Adjustments 43 -12 7 8 -16 -30 1979-2014 Revision Increases 7 2 31 3 196 29 1979-2014 Revision Decreases 65 2 2 23 40 4 1979-2014 Sales 0 0 4 0 0 14 2000-2014 Acquisitions 0 0 4 20 0 41 2000-2014 Extensions 0 0 0 10 2 1 1979-2014 New Field Discoveries 0 0 0 0 0 0 1979-2014 New Reservoir Discoveries in Old Fields 0 0 0 0 0 0 1979-2014 Estimated Production 4 1 4 5 18 15

  15. TX, RRC District 6 Associated-Dissolved Natural Gas Proved Reserves, Wet

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

    After Lease Separation 451 458 471 522 639 383 1979-2014 Adjustments 16 13 38 1 -53 28 1979-2014 Revision Increases 85 23 34 220 78 57 1979-2014 Revision Decreases 34 37 25 119 81 23 1979-2014 Sales 0 0 24 49 9 343 2000-2014 Acquisitions 0 4 19 18 47 60 2000-2014 Extensions 23 37 0 29 173 42 1979-2014 New Field Discoveries 0 0 1 0 0 0 1979-2014 New Reservoir Discoveries in Old Fields 0 0 0 0 0 0 1979-2014 Estimated Production 51 33 30 49 38 77

  16. TX, RRC District 7B Associated-Dissolved Natural Gas Proved Reserves, Wet

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

    After Lease Separation 02 121 133 180 227 277 1979-2014 Adjustments -3 39 -27 66 -59 44 1979-2014 Revision Increases 16 9 39 23 161 30 1979-2014 Revision Decreases 4 14 12 22 34 5 1979-2014 Sales 0 0 0 1 0 0 2000-2014 Acquisitions 0 0 21 0 1 0 2000-2014 Extensions 37 0 6 0 0 4 1979-2014 New Field Discoveries 0 0 0 0 0 0 1979-2014 New Reservoir Discoveries in Old Fields 0 0 0 0 2 0 1979-2014 Estimated Production 12 15 15 19 24 2

  17. TX, RRC District 7C Associated-Dissolved Natural Gas Proved Reserves, Wet

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

    After Lease Separation ,706 1,930 2,379 3,076 3,401 4,659 1979-2014 Adjustments 13 41 -11 210 -78 218 1979-2014 Revision Increases 224 228 388 234 459 1,308 1979-2014 Revision Decreases 59 92 264 460 660 1,168 1979-2014 Sales 18 392 143 39 95 40 2000-2014 Acquisitions 56 338 301 84 133 296 2000-2014 Extensions 203 205 309 774 660 956 1979-2014 New Field Discoveries 0 0 0 0 0 0 1979-2014 New Reservoir Discoveries in Old Fields 2 11 0 53 121 1 1979-2014 Estimated Production 97 115 131 159 215

  18. TX, RRC District 8 Associated-Dissolved Natural Gas Proved Reserves, Wet

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

    After Lease Separation 3,490 4,328 5,082 6,654 7,400 9,095 1979-2014 Adjustments 134 178 -357 339 148 58 1979-2014 Revision Increases 433 575 783 841 1,053 2,161 1979-2014 Revision Decreases 292 532 484 763 1,000 1,487 1979-2014 Sales 102 285 153 165 526 757 2000-2014 Acquisitions 119 805 485 686 545 770 2000-2014 Extensions 341 376 759 1,048 1,019 1,585 1979-2014 New Field Discoveries 1 0 4 8 0 0 1979-2014 New Reservoir Discoveries in Old Fields 25 2 1 2 26 38 1979-2014 Estimated Production

  19. TX, RRC District 8A Associated-Dissolved Natural Gas Proved Reserves, Wet

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

    After Lease Separation 246 1,170 1,258 1,260 1,315 1,304 1979-2014 Adjustments 76 -67 -12 13 12 2 1979-2014 Revision Increases 168 141 202 111 174 140 1979-2014 Revision Decreases 96 59 33 35 58 56 1979-2014 Sales 8 12 17 30 38 5 2000-2014 Acquisitions 17 4 34 25 43 6 2000-2014 Extensions 2 7 8 16 23 8 1979-2014 New Field Discoveries 0 0 0 1 0 0 1979-2014 New Reservoir Discoveries in Old Fields 0 0 1 1 0 0 1979-2014 Estimated Production 107 90 95 100 101 106

  20. TX, RRC District 9 Associated-Dissolved Natural Gas Proved Reserves, Wet

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

    After Lease Separation 422 585 957 1,161 1,093 1,477 1979-2014 Adjustments -76 11 -48 -88 36 342 1979-2014 Revision Increases 16 199 61 53 76 106 1979-2014 Revision Decreases 18 10 8 21 314 5 1979-2014 Sales 6 2 17 5 6 2 2000-2014 Acquisitions 69 4 27 24 0 0 2000-2014 Extensions 302 5 419 352 236 61 1979-2014 New Field Discoveries 0 0 11 0 0 0 1979-2014 New Reservoir Discoveries in Old Fields 0 0 0 0 0 0 1979-2014 Estimated Production 23 44 73 111 96 118

  1. TX, State Offshore Associated-Dissolved Natural Gas Proved Reserves, Wet

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

    After Lease Separation 3 3 5 6 3 0 1981-2014 Adjustments -1 18 -1 9 -3 -1 1981-2014 Revision Increases 0 0 5 2 0 1 1981-2014 Revision Decreases 1 21 1 2 0 3 1981-2014 Sales 0 0 0 0 0 0 2000-2014 Acquisitions 0 4 0 0 0 0 2000-2014 Extensions 0 0 0 0 0 0 1981-2014 New Field Discoveries 0 0 0 0 0 0 1981-2014 New Reservoir Discoveries in Old Fields 0 0 0 0 0 0 1981-2014 Estimated Production 0 1 1 8 0 0 1981

  2. Utah Associated-Dissolved Natural Gas Proved Reserves, Wet After Lease

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

    Separation 601 631 909 1,001 895 872 1979-2014 Adjustments 4 -15 38 -22 -12 11 1979-2014 Revision Increases 190 117 190 106 53 327 1979-2014 Revision Decreases 2 61 48 55 213 378 1979-2014 Sales 4 0 6 11 173 24 2000-2014 Acquisitions 66 6 4 23 202 33 2000-2014 Extensions 59 20 150 102 95 84 1979-2014 New Field Discoveries 0 0 0 0 0 2 1979-2014 New Reservoir Discoveries in Old Fields 0 0 0 0 0 0 1979-2014 Estimated Production 33 37 50 51 58 78 1979

  3. Virginia Associated-Dissolved Natural Gas Proved Reserves, Wet After Lease

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

    Separation 2008 2009 2010 2014 View History Proved Reserves as of Dec. 31 0 0 0 0 1982-2014 Adjustments 0 0 0 0 1982-2014 Revision Increases 0 0 0 0 1982-2014 Revision Decreases 0 0 0 0 1982-2014 Sales 0 0 0 0 2000-2014 Acquisitions 0 0 0 0 2000-2014 Extensions 0 0 0 0 1982-2014 New Field Discoveries 0 0 0 0 1982-2014 New Reservoir Discoveries in Old Fields 0 0 0 0 1982-2014 Estimated Production 0 0 0 0 1982

  4. West Virginia Associated-Dissolved Natural Gas Proved Reserves, Wet After

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

    Lease Separation 24 29 52 21 70 32 1979-2014 Adjustments 8 -3 -1 -16 114 -29 1979-2014 Revision Increases 0 3 26 0 2 1 1979-2014 Revision Decreases 5 2 6 13 59 6 1979-2014 Sales 0 7 26 0 0 1 2000-2014 Acquisitions 0 14 33 0 0 0 2000-2014 Extensions 0 3 0 0 0 0 1979-2014 New Field Discoveries 0 0 0 0 0 0 1979-2014 New Reservoir Discoveries in Old Fields 0 0 0 0 0 0 1979-2014 Estimated Production 2 3 3 2 8 3

  5. Kansas Associated-Dissolved Natural Gas Proved Reserves, Wet After Lease

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

    Separation 83 79 127 326 433 657 1979-2014 Adjustments -5 -2 -4 81 -106 -6 1979-2014 Revision Increases 21 18 20 41 35 95 1979-2014 Revision Decreases 9 15 9 50 68 129 1979-2014 Sales 0 1 1 1 2 7 2000-2014 Acquisitions 0 3 1 0 23 23 2000-2014 Extensions 1 3 53 153 257 282 1979-2014 New Field Discoveries 0 1 0 5 0 0 1979-2014 New Reservoir Discoveries in Old Fields 0 0 0 0 0 0 1979-2014 Estimated Production 10 11 12 30 32 34

  6. Federal Offshore U.S. Associated-Dissolved Natural Gas Proved...

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

    Extensions 90 87 32 229 243 94 1990-2014 New Field Discoveries 214 6 524 65 54 303 1990-2014 New Reservoir Discoveries in Old Fields 122 150 42 80 12 7 1990-2014 Estimated ...

  7. New Mexico Associated-Dissolved Natural Gas Proved Reserves, Wet After

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

    Lease Separation 1,982 2,213 2,552 2,819 3,413 4,683 1979-2014 Adjustments 170 -103 20 -1 -151 171 1979-2014 Revision Increases 302 230 335 655 789 1,173 1979-2014 Revision Decreases 299 249 214 444 503 597 1979-2014 Sales 64 57 126 244 34 4 2000-2014 Acquisitions 66 319 163 70 29 56 2000-2014 Extensions 233 270 362 478 650 809 1979-2014 New Field Discoveries 0 0 3 2 0 1 1979-2014 New Reservoir Discoveries in Old Fields 0 2 0 1 98 4 1979-2014 Estimated Production 181 181 204 250 284 343

  8. Lower 48 States Associated-Dissolved Natural Gas Proved Reserves, Wet After

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

    Lease Separation 25,290 27,850 34,288 44,484 52,062 63,266 1979-2014 Adjustments 876 -481 391 387 -650 1,397 1979-2014 Revision Increases 3,826 4,747 7,245 7,667 8,496 13,085 1979-2014 Revision Decreases 2,693 3,704 5,874 6,052 7,701 9,607 1979-2014 Sales 563 1,146 1,336 1,131 1,733 3,891 2000-2014 Acquisitions 678 2,469 1,833 2,150 2,842 4,428 2000-2014 Extensions 2,669 2,658 5,954 10,016 9,613 9,954 1979-2014 New Field Discoveries 263 102 611 151 63 327 1979-2014 New Reservoir Discoveries

  9. Texas - RRC District 7C Associated-Dissolved Natural Gas, Wet...

    Gasoline and Diesel Fuel Update (EIA)

    Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1970's 653 1980's 520 685 704 705 776 780 666 737 727 721 1990's 768 759 748 633 631 640 692 596 557 616 2000's 693 634 737 927 994...

  10. Associated-Dissolved Natural Gas New Field Discoveries, Wet After Lease

    Gasoline and Diesel Fuel Update (EIA)

    Separation, 263 102 611 151 63 327 1979-2014 Federal Offshore U.S. 214 6 524 65 54 303 1990-2014 Pacific (California) 0 0 0 0 0 0 1979-2014 Gulf of Mexico (Louisiana & Alabama) 25 6 524 65 54 303 1981-2014 Gulf of Mexico (Texas) 189 0 0 0 0 0 1981-2014 Alaska 0 0 0 0 0 0 1979-2014 Lower 48 States 263 102 611 151 63 327 1979-2014 Alabama 0 2 2 0 0 0 1979-2014 Arkansas 0 0 0 0 0 0 1979-2014 California 0 0 0 4 0 0 1979-2014 Coastal Region Onshore 0 0 0 0 0 0 1979-2014 Los Angeles Basin

  11. Associated-Dissolved Natural Gas New Reservoir Discoveries in Old Fields,

    Gasoline and Diesel Fuel Update (EIA)

    Wet After Lease Separation 169 186 160 229 581 584 1979-2014 Federal Offshore U.S. 122 150 42 80 12 7 1990-2014 Pacific (California) 0 0 0 0 0 0 1979-2014 Gulf of Mexico (Louisiana & Alabama) 81 138 42 29 12 7 1981-2014 Gulf of Mexico (Texas) 41 12 0 51 0 0 1981-2014 Alaska 0 0 0 0 0 0 1979-2014 Lower 48 States 169 186 160 229 581 584 1979-2014 Alabama 0 0 0 0 0 14 1979-2014 Arkansas 0 0 0 0 0 0 1979-2014 California 0 0 0 1 2 2 1979-2014 Coastal Region Onshore 0 0 0 0 0 0 1979-2014 Los

  12. Associated-Dissolved Natural Gas Reserves Sales, Wet After Lease Separation

    Gasoline and Diesel Fuel Update (EIA)

    564 1,146 1,338 1,131 1,733 4,058 2000-2014 Federal Offshore U.S. 20 83 66 205 322 113 2000-2014 Pacific (California) 0 0 0 0 11 0 2000-2014 Gulf of Mexico (Louisiana & Alabama) 20 74 66 201 294 109 2000-2014 Gulf of Mexico (Texas) 0 9 0 4 17 4 2000-2014 Alaska 1 0 2 0 0 167 2000-2014 Lower 48 States 563 1,146 1,336 1,131 1,733 3,891 2000-2014 Alabama 0 2 9 0 0 0 2000-2014 Arkansas 5 0 38 0 0 9 2000-2014 California 4 1 1 0 76 1,079 2000-2014 Coastal Region Onshore 0 1 0 0 1 56 2000-2014 Los

  13. U.S. Associated-Dissolved Natural Gas Proved Reserves, Wet After...

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

    U.S. Federal Offshore U.S. Federal Offshore, Pacific (California) Federal Offshore, Gulf of Mexico, LA & AL Federal Offshore, Gulf of Mexico, TX Alaska Lower 48 States Alabama...

  14. Natural Gas Aquifers Storage Capacity

    Gasoline and Diesel Fuel Update (EIA)

    2,086 11,809 11,254 9,720 9,459 9,992 1979-2014 Natural Gas Nonassociated, Wet After Lease Separation 12,004 11,704 11,111 9,578 9,322 9,766 1979-2014 Natural Gas Associated-Dissolved, Wet After Lease Separation 82 105 143 142 137 226 1979-2014 Dry Natural Gas 11,457 11,186 10,626 9,200 8,943 9,484 Separation

    2,004 11,704 11,111 9,578 9,322 9,766 1979-2014 Adjustments 263 120 179 49 42 310 1979-2014 Revision Increases 898 1,795 1,695 1,647 2,517 2,021 1979-2014 Revision Decreases 1,125

  15. Miscellaneous States Natural Gas Liquids Lease Condensate, Reserves Based

    Gasoline and Diesel Fuel Update (EIA)

    Separation, Proved Reserves (Billion Cubic Feet) Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) Miscellaneous States Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1970's 14 1980's 34 12 27 31 14 25 41 13 28 39 1990's 22 14 11 9 11 32 28 31 17 54 2000's 19 19 20 14 12 14 19 15 9 78 2010's 10 104 7 19 18 - = No

  16. Zero Discharge Water Management for Horizontal Shale Gas Well Development

    SciTech Connect (OSTI)

    Paul Ziemkiewicz; Jennifer Hause; Raymond Lovett; David Locke Harry Johnson; Doug Patchen

    2012-03-31

    Hydraulic fracturing technology (fracking), coupled with horizontal drilling, has facilitated exploitation of huge natural gas (gas) reserves in the Devonian-age Marcellus Shale Formation (Marcellus) of the Appalachian Basin. The most-efficient technique for stimulating Marcellus gas production involves hydraulic fracturing (injection of a water-based fluid and sand mixture) along a horizontal well bore to create a series of hydraulic fractures in the Marcellus. The hydraulic fractures free the shale-trapped gas, allowing it to flow to the well bore where it is conveyed to pipelines for transport and distribution. The hydraulic fracturing process has two significant effects on the local environment. First, water withdrawals from local sources compete with the water requirements of ecosystems, domestic and recreational users, and/or agricultural and industrial uses. Second, when the injection phase is over, 10 to 30% of the injected water returns to the surface. This water consists of flowback, which occurs between the completion of fracturing and gas production, and produced water, which occurs during gas production. Collectively referred to as returned frac water (RFW), it is highly saline with varying amounts of organic contamination. It can be disposed of, either by injection into an approved underground injection well, or treated to remove contaminants so that the water meets the requirements of either surface release or recycle use. Depending on the characteristics of the RFW and the availability of satisfactory disposal alternatives, disposal can impose serious costs to the operator. In any case, large quantities of water must be transported to and from well locations, contributing to wear and tear on local roadways that were not designed to handle the heavy loads and increased traffic. The search for a way to mitigate the situation and improve the overall efficiency of shale gas production suggested a treatment method that would allow RFW to be used as make-up water for successive fracs. RFW, however, contains dissolved salts, suspended sediment and oils that may interfere with fracking fluids and/or clog fractures. This would lead to impaired well productivity. The major technical constraints to recycling RFW involves: identification of its composition, determination of industry standards for make-up water, and development of techniques to treat RFW to acceptable levels. If large scale RFW recycling becomes feasible, the industry will realize lower transportation and disposal costs, environmental conflicts, and risks of interruption in well development schedules.

  17. WebGasEOS

    Energy Science and Technology Software Center (OSTI)

    2005-10-01

    WebGasEOS provides quick, user-friendly access to real gas physical properties. Using the real gas properties modules of the TOUGH-Fx project, WebGasEOS allows any user, though a web- based application, to define a multicornponent system, specify temperature and pressure, select an equation of state, and compute volumetric, thermodynamic, and fluid properties. Additional functions allow the inclusion of gaseous or liquid water, with or without added salts. The user may choose the format of the results, performmore » repeat calculations or calculations over a range of temperature and pressure, or vary compositions by simply changing form parameters, The application is publicly available on the internet and can be used at any time by anyone with a standards-compliant web browser.« less

  18. 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.

  19. Exhaust gas clean up process

    DOE Patents [OSTI]

    Walker, Richard J.

    1989-01-01

    A method of cleaning an exhaust gas containing particulates, SO.sub.2 and NO.sub.x includes prescrubbing with water to remove HCl and most of the particulates, scrubbing with an aqueous absorbent containing a metal chelate and dissolved sulfite salt to remove NO.sub.x and SO.sub.2, and regenerating the absorbent solution by controlled heating, electrodialysis and carbonate salt addition. The NO.sub.x is removed as N.sub.2 or nitrogen-sulfonate ions and the oxides of sulfur are removed as a vaulable sulfate salt.

  20. Solid state electrochemical composite

    DOE Patents [OSTI]

    Visco, Steven J. (Berkeley, CA); Jacobson, Craig P. (Moraga, CA); DeJonghe, Lutgard C. (Lafayette, CA)

    2009-06-30

    Provided is a composite electrochemical device fabricated from highly electronically conductive materials such as metals, metal alloys, or electronically conductive ceramics. The electronic conductivity of the electrode substrate is maximized. The invention allows for an electrode with high electronic conductivity and sufficient catalytic activity to achieve high power density in ionic (electrochemical) devices such as fuel cells and electrolytic gas separation systems including oxygen generation system.

  1. Electrocatalyst compositions

    DOE Patents [OSTI]

    Mallouk, Thomas E.; Chan, Benny C.; Reddington, Erik; Sapienza, Anthony; Chen, Guoying; Smotkin, Eugene; Gurau, Bogdan; Viswanathan, Rameshkrishnan; Liu, Renxuan

    2001-09-04

    Compositions for use as catalysts in electrochemical reactions are described. The compositions are alloys prepared from two or more elemental metals selected from platinum, molybdenum, osmium, ruthenium, rhodium, and iridium. Also described are electrode compositions including such alloys and electrochemical reaction devices including such catalysts.

  2. Method of making carbon nanotube composite materials

    DOE Patents [OSTI]

    O'Bryan, Gregory; Skinner, Jack L; Vance, Andrew; Yang, Elaine Lai; Zifer, Thomas

    2014-05-20

    The present invention is a method of making a composite polymeric material by dissolving a vinyl thermoplastic polymer, un-functionalized carbon nanotubes and hydroxylated carbon nanotubes and optionally additives in a solvent to make a solution and removing at least a portion of the solvent after casting onto a substrate to make thin films. The material has enhanced conductivity properties due to the blending of the un-functionalized and hydroxylated carbon nanotubes.

  3. Hot-gas conditioning of biomass derived synthesis gas

    SciTech Connect (OSTI)

    Paisley, M.A.; Litt, R.D.

    1993-12-31

    Battelle has tested selected catalysts to evaluate the potential for hot-gas conditioning of biomass gasifier product gas to modify the product gas to produce a gas suitable for methanol synthesis. The Battelle Process Research Unit (PRU) gasifier was utilized as a source of a stable supply of product gas that contained all of the trace constituents that might be present in a commercial scale gasification system. One goal of alternate fuel generation with renewable biomass fuels is the production of a liquid transportation fuel such as methanol. The hot-gas conditioning tests run were planned to evaluate commercial catalysts that would crack hydrocarbons and provide water gas shift activity to adjust the product gas composition for methanol synthesis. During the test program, a novel, low cost catalyst, was identified that showed high levels of activity and stability. The composition of this catalyst is such that it has the potential to be a disposable catalyst and is free from hazardous materials. The initial tests with this catalyst showed high levels of water gas shift activity superior to, and hydrocarbon cracking activity nearly as high as, a commercial cracking catalyst tested.

  4. Precursor polymer compositions comprising polybenzimidazole

    DOE Patents [OSTI]

    Klaehn, John R.; Peterson, Eric S.; Orme, Christopher J.

    2015-07-14

    Stable, high performance polymer compositions including polybenzimidazole (PBI) and a melamine-formaldehyde polymer, such as methylated, poly(melamine-co-formaldehyde), for forming structures such as films, fibers and bulky structures. The polymer compositions may be formed by combining polybenzimidazole with the melamine-formaldehyde polymer to form a precursor. The polybenzimidazole may be reacted and/or intertwined with the melamine-formaldehyde polymer to form the polymer composition. For example, a stable, free-standing film having a thickness of, for example, between about 5 .mu.m and about 30 .mu.m may be formed from the polymer composition. Such films may be used as gas separation membranes and may be submerged into water for extended periods without crazing and cracking. The polymer composition may also be used as a coating on substrates, such as metal and ceramics, or may be used for spinning fibers. Precursors for forming such polymer compositions are also disclosed.

  5. Robust high temperature composite and CO sensor made from such composite

    DOE Patents [OSTI]

    Dutta, Prabir K.; Ramasamy, Ramamoorthy; Li, Xiaogan; Akbar, Sheikh A.

    2010-04-13

    Described herein is a composite exhibiting a change in electrical resistance proportional to the concentration of a reducing gas present in a gas mixture, detector and sensor devices comprising the composite, a method for making the composite and for making devices comprising the composite, and a process for detecting and measuring a reducing gas in an atmosphere. In particular, the reducing gas may be carbon monoxide and the composite may comprise rutile-phase TiO2 particles and platinum nanoclusters. The composite, upon exposure to a gas mixture containing CO in concentrations of up to 10,000 ppm, exhibits an electrical resistance proportional to the concentration of the CO present. The composite is useful for making sensitive, low drift, fast recovering detectors and sensors, and for measuring CO concentrations in a gas mixture present at levels from sub-ppm up to 10,000 ppm. The composites, and devices made from the composites, are stable and operable in a temperature range of from about 450.degree. C. to about 700.degree. C., such as may be found in a combustion chamber.

  6. Gas separating

    DOE Patents [OSTI]

    Gollan, Arye

    1988-01-01

    Feed gas is directed tangentially along the non-skin surface of gas separation membrane modules comprising a cylindrical bundle of parallel contiguous hollow fibers supported to allow feed gas to flow from an inlet at one end of a cylindrical housing through the bores of the bundled fibers to an outlet at the other end while a component of the feed gas permeates through the fibers, each having the skin side on the outside, through a permeate outlet in the cylindrical casing.

  7. Gas separating

    DOE Patents [OSTI]

    Gollan, Arye Z. [Newton, MA

    1990-12-25

    Feed gas is directed tangentially along the non-skin surface of gas separation membrane modules comprising a cylindrical bundle of parallel contiguous hollow fibers supported to allow feed gas to flow from an inlet at one end of a cylindrical housing through the bores of the bundled fibers to an outlet at the other end while a component of the feed gas permeates through the fibers, each having the skin side on the outside, through a permeate outlet in the cylindrical casing.

  8. Rapid Field Measurement of Dissolved Inorganic Carbon Based on CO{sub 2}

    Office of Scientific and Technical Information (OSTI)

    Analysis (Conference) | SciTech Connect SciTech Connect Search Results Conference: Rapid Field Measurement of Dissolved Inorganic Carbon Based on CO{sub 2} Analysis Citation Details In-Document Search Title: Rapid Field Measurement of Dissolved Inorganic Carbon Based on CO{sub 2} Analysis Dissolved inorganic carbon (DIC) is commonly measured in water and is an important parameter for understanding carbonate equilibrium, carbon cycling, and water-rock interaction. While accurate measurements

  9. Effects of passivation on synthesis, structure and composition...

    Office of Scientific and Technical Information (OSTI)

    Effects of passivation on synthesis, structure and composition of molybdenum carbide supported platinum water-gas shift catalysts Citation Details In-Document Search Title: Effects ...

  10. High Performance Composite Membranes for Separation of Carbon Dioxide from

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

    Methane | Center for Gas SeparationsRelevant to Clean Energy Technologies | Blandine Jerome High Performance Composite Membranes for Separation of Carbon Dioxide from Methane

  11. Measurements of gas sorption from seawater and the influence of gas release on open-cycle ocean thermal energy conversion (OC-OTEC) system performance

    SciTech Connect (OSTI)

    Penney, T.R.; Althof, J.A.

    1985-06-01

    The technical community has questioned the validity and cost-effectiveness of open-cycle ocean thermal energy conversion (OC-OTEC) systems because of the unknown effect of noncondensable gas on heat exchanger performance and the power needed to run vacuum equipment to remove this gas. To date, studies of seawater gas desorption have not been prototypical for system level analysis. This study gives preliminary gas desorption data on a vertical spout, direct contact evaporator and multiple condenser geometries. Results indicate that dissolved gas can be substantially removed before the seawater enters the heat exchange process, reducing the uncertainty and effect of inert gas on heat exchanger performance.

  12. Method of Liquifying a gas

    DOE Patents [OSTI]

    Zollinger, William T.; Bingham, Dennis N.; McKellar, Michael G.; Wilding, Bruce M.; Klingler, Kerry M.

    2006-02-14

    A method of liquefying a gas is disclosed and which includes the steps of pressurizing a liquid; mixing a reactant composition with the pressurized liquid to generate a high pressure gas; supplying the high pressure gas to an expansion engine which produces a gas having a reduced pressure and temperature, and which further generates a power and/or work output; coupling the expansion engine in fluid flowing relation relative to a refrigeration assembly, and wherein the gas having the reduced temperature is provided to the refrigeration assembly; and energizing and/or actuating the refrigeration assembly, at least in part, by supplying the power and/or work output generated by the expansion engine to the refrigeration assembly, the refrigeration assembly further reducing the temperature of the gas to liquefy same.

  13. Effect of dissolved CO2 on a shallow groundwater system: A controlled...

    Office of Scientific and Technical Information (OSTI)

    controlled release experiment Citation Details In-Document Search Title: Effect of dissolved CO2 on a shallow groundwater system: A controlled release experiment You are ...

  14. Utah Natural Gas Reserves Summary as of Dec. 31

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

    7,411 7,146 8,108 7,775 7,057 6,970 1979-2014 Natural Gas Nonassociated, Wet After Lease Separation 6,810 6,515 7,199 6,774 6,162 6,098 1979-2014 Natural Gas Associated-Dissolved, Wet After Lease Separation 601 631 909 1,001 895 872 1979-2014 Dry Natural Gas 7,257 6,981 7,857 7,548 6,829 6,685 1977-2014 Natural Gas Liquids (Million Barrels) 1979

  15. Oklahoma Natural Gas Reserves Summary as of Dec. 31

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

    24,207 28,182 29,937 28,714 28,900 34,319 1979-2014 Natural Gas Nonassociated, Wet After Lease Separation 23,115 26,873 27,683 25,018 24,370 27,358 1979-2014 Natural Gas Associated-Dissolved, Wet After Lease Separation 1,092 1,309 2,254 3,696 4,530 6,961 1979-2014 Dry Natural Gas 22,769 26,345 27,830 26,599 26,873 31,778 1977-2014 Natural Gas Liquids (Million Barrels) 1979-2008

  16. Pennsylvania Natural Gas Reserves Summary as of Dec. 31

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

    7,018 14,068 26,719 36,543 50,078 60,443 1979-2014 Natural Gas Nonassociated, Wet After Lease Separation 6,885 13,924 26,585 36,418 49,809 60,144 1979-2014 Natural Gas Associated-Dissolved, Wet After Lease Separation 133 144 134 125 269 299 1979-2014 Dry Natural Gas 6,985 13,960 26,529 36,348 49,674 59,873 1977-2014 Natural Gas Liquids (Million Barrels) 1979-1981

  17. Continuous Fiber Ceramic Composites (CFCC)

    SciTech Connect (OSTI)

    R. A. Wagner

    2002-12-18

    This report summarizes work to develop CFCC's for various applications in the Industries of the Future (IOF) and power generation areas. Performance requirements range from relatively modest for hot gas filters to severe for turbine combustor liners and infrared burners. The McDermott Technology Inc. (MTI) CFCC program focused on oxide/oxide composite systems because they are known to be stable in the application environments of interest. The work is broadly focused on dense and porous composite systems depending on the specific application. Dense composites were targeted at corrosion resistant components, molten aluminum handling components and gas turbine combustor liners. The development work on dense composites led to significant advances in fiber coatings for oxide fibers and matrix densification. Additionally, a one-step fabrication process was developed to produce low cost composite components. The program also supported key developments in advanced oxide fibers that resulted in an improved version of Nextel 610 fiber (commercially available as Nextel 650) and significant progress in the development of a YAG/alumina fiber. Porous composite development focused on the vacuum winding process used to produce hot gas filters and infrared burner components.

  18. LA, South Onshore Natural Gas Reserves Summary as of Dec. 31

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

    2,969 2,995 2,615 3,149 2,857 3,080 1979-2014 Natural Gas Nonassociated, Wet After Lease Separation 2,463 2,496 2,125 2,586 2,254 2,432 1979-2014 Natural Gas Associated-Dissolved, ...

  19. Nebraska Natural Gas Number of Gas and Gas Condensate Wells ...

    Gasoline and Diesel Fuel Update (EIA)

    Gas and Gas Condensate Wells (Number of Elements) Nebraska Natural Gas Number of Gas and Gas Condensate Wells (Number of Elements) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5...

  20. Missouri Natural Gas Number of Gas and Gas Condensate Wells ...

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

    Gas and Gas Condensate Wells (Number of Elements) Missouri Natural Gas Number of Gas and Gas Condensate Wells (Number of Elements) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5...

  1. Michigan Natural Gas Number of Gas and Gas Condensate Wells ...

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

    Gas and Gas Condensate Wells (Number of Elements) Michigan Natural Gas Number of Gas and Gas Condensate Wells (Number of Elements) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5...

  2. Kentucky Natural Gas Number of Gas and Gas Condensate Wells ...

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

    Gas and Gas Condensate Wells (Number of Elements) Kentucky Natural Gas Number of Gas and Gas Condensate Wells (Number of Elements) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5...

  3. Mississippi Natural Gas Number of Gas and Gas Condensate Wells...

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

    Gas and Gas Condensate Wells (Number of Elements) Mississippi Natural Gas Number of Gas and Gas Condensate Wells (Number of Elements) Decade Year-0 Year-1 Year-2 Year-3 Year-4...

  4. Maryland Natural Gas Number of Gas and Gas Condensate Wells ...

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

    Gas and Gas Condensate Wells (Number of Elements) Maryland Natural Gas Number of Gas and Gas Condensate Wells (Number of Elements) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5...

  5. Louisiana Natural Gas Number of Gas and Gas Condensate Wells...

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

    Gas and Gas Condensate Wells (Number of Elements) Louisiana Natural Gas Number of Gas and Gas Condensate Wells (Number of Elements) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5...

  6. Method for removing undesired particles from gas streams

    DOE Patents [OSTI]

    Durham, Michael Dean; Schlager, Richard John; Ebner, Timothy George; Stewart, Robin Michele; Hyatt, David E.; Bustard, Cynthia Jean; Sjostrom, Sharon

    1998-01-01

    The present invention discloses a process for removing undesired particles from a gas stream including the steps of contacting a composition containing an adhesive with the gas stream; collecting the undesired particles and adhesive on a collection surface to form an aggregate comprising the adhesive and undesired particles on the collection surface; and removing the agglomerate from the collection zone. The composition may then be atomized and injected into the gas stream. The composition may include a liquid that vaporizes in the gas stream. After the liquid vaporizes, adhesive particles are entrained in the gas stream. The process may be applied to electrostatic precipitators and filtration systems to improve undesired particle collection efficiency.

  7. Electrode compositions

    DOE Patents [OSTI]

    Block, Jacob (Rockville, MD); Fan, Xiyun (Orange, TX)

    1998-01-01

    An electrode composition for use as an electrode in a non-aqueous battery system. The electrode composition contains an electrically active powder in a solid polymer and, as a dispersant, a C.sub.8 -C.sub.15 alkyl capped oligomer of a hexanoic acid that is electrochemically inert at 2.5-4.5 volts.

  8. Electrode compositions

    DOE Patents [OSTI]

    Block, J.; Fan, X.

    1998-10-27

    An electrode composition is described for use as an electrode in a non-aqueous battery system. The electrode composition contains an electrically active powder in a solid polymer and, as a dispersant, a C{sub 8}-C{sub 15} alkyl capped oligomer of a hexanoic acid that is electrochemically inert at 2.5--4.5 volts.

  9. Dissolved oxygen and pH relationships in northern Australian mangrove waterways

    SciTech Connect (OSTI)

    Boto, K.G.; Bunt, J.S.

    1981-01-01

    Consistent, highly significant linear correlations (R2 greater than or equal to 0.8) between pH and dissolved oxygen levels have been found in northern Australian mangrove waterways. These properties seem to be influenced by dissolved organic matter, mainly polyphenolic compounds, present in the creeks and tidal channel waters.

  10. Method of manufacturing aerogel composites

    DOE Patents [OSTI]

    Cao, Wanqing; Hunt, Arlon Jason

    1999-01-01

    Disclosed herewith is a process of forming an aerogel composite which comprises introducing a gaseous material into a formed aerogel monolith or powder, and causing decomposition of said gaseous material in said aerogel in amounts sufficient to cause deposition of the decomposition products of the gas on the surfaces of the pores of the said aerogel.

  11. Method of manufacturing aerogel composites

    DOE Patents [OSTI]

    Cao, W.; Hunt, A.J.

    1999-03-09

    Disclosed herewith is a process of forming an aerogel composite which comprises introducing a gaseous material into a formed aerogel monolith or powder, and causing decomposition of said gaseous material in said aerogel in amounts sufficient to cause deposition of the decomposition products of the gas on the surfaces of the pores of the said aerogel.

  12. Slurried solid media for simultaneous water purification and carbon dioxide removal from gas mixtures

    DOE Patents [OSTI]

    Aines, Roger D.; Bourcier, William L.; Viani, Brian

    2013-01-29

    A slurried solid media for simultaneous water purification and carbon dioxide removal from gas mixtures includes the steps of dissolving the gas mixture and carbon dioxide in water providing a gas, carbon dioxide, water mixture; adding a porous solid media to the gas, carbon dioxide, water mixture forming a slurry of gas, carbon dioxide, water, and porous solid media; heating the slurry of gas, carbon dioxide, water, and porous solid media producing steam; and cooling the steam to produce purified water and carbon dioxide.

  13. Process automation using combinations of process and machine control technologies with application to a continuous dissolver

    SciTech Connect (OSTI)

    Spencer, B.B.: Yarbro, O.O.

    1991-01-01

    Operation of a continuous rotary dissolver, designed to leach uranium-plutonium fuel from chopped sections of reactor fuel cladding using nitric acid, has been automated. The dissolver is a partly continuous, partly batch process that interfaces at both ends with batchwise processes, thereby requiring synchronization of certain operations. Liquid acid is fed and flows through the dissolver continuously, whereas chopped fuel elements are fed to the dissolver in small batches and move through the compartments of the dissolver stagewise. Sequential logic (or machine control) techniques are used to control discrete activities such as the sequencing of isolation valves. Feedback control is used to control acid flowrates and temperatures. Expert systems technology is used for on-line material balances and diagnostics of process operation. 1 ref., 3 figs.

  14. Gas separating

    DOE Patents [OSTI]

    Gollan, A.

    1988-03-29

    Feed gas is directed tangentially along the non-skin surface of gas separation membrane modules comprising a cylindrical bundle of parallel contiguous hollow fibers supported to allow feed gas to flow from an inlet at one end of a cylindrical housing through the bores of the bundled fibers to an outlet at the other end while a component of the feed gas permeates through the fibers, each having the skin side on the outside, through a permeate outlet in the cylindrical casing. 3 figs.

  15. Natural Gas

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

    Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 Geothermal Natural Gas Safety, ... Analysis of Technology and Policy Tradeoffs, Energy Policy, ...

  16. Gas magnetometer

    DOE Patents [OSTI]

    Walker, Thad Gilbert; Lancor, Brian Robert; Wyllie, Robert

    2016-05-03

    Measurement of a precessional rate of a gas, such as an alkali gas, in a magnetic field is made by promoting a non-uniform precession of the gas in which substantially no net magnetic field affects the gas during a majority of the precession cycle. This allows sensitive gases that would be subject to spin-exchange collision de-phasing to be effectively used for extremely sensitive measurements in the presence of an environmental magnetic field such as the Earth's magnetic field.

  17. Gas separating

    DOE Patents [OSTI]

    Gollan, A.Z.

    1990-12-25

    Feed gas is directed tangentially along the non-skin surface of gas separation membrane modules comprising a cylindrical bundle of parallel contiguous hollow fibers supported to allow feed gas to flow from an inlet at one end of a cylindrical housing through the bores of the bundled fibers to an outlet at the other end while a component of the feed gas permeates through the fibers, each having the skin side on the outside, through a permeate outlet in the cylindrical casing. 3 figs.

  18. Composite hydrogen separation element and module

    DOE Patents [OSTI]

    Edlund, David J. (Redmond, OR); Newbold, David D. (Bend, OR); Frost, Chester B. (Bend, OR)

    1997-01-01

    There are disclosed improvements in multicomponent composite metal membranes useful for the separation of hydrogen, the improvements comprising the provision of at least one common-axis hole through all components of the composite membrane and the provision of a gas-tight seal around the periphery of the hole or holes through a coating metal layer of the membrane.

  19. Composite hydrogen separation element and module

    DOE Patents [OSTI]

    Edlund, D.J.; Newbold, D.D.; Frost, C.B.

    1997-07-08

    There are disclosed improvements in multicomponent composite metal membranes useful for the separation of hydrogen, the improvements comprising the provision of at least one common-axis hole through all components of the composite membrane and the provision of a gas-tight seal around the periphery of the hole or holes through a coating metal layer of the membrane. 11 figs.

  20. Composition Pulse Time-Of-Flight Mass Flow Sensor

    DOE Patents [OSTI]

    Mosier, Bruce P.; Crocker, Robert W.; Harnett, Cindy K. l

    2004-01-13

    A device for measuring fluid flow rates over a wide range of flow rates (<1 nL/min to >10 .mu.L/min) and at pressures at least as great as 10,000 psi. The invention is particularly adapted for use in microfluidic systems. The device operates by producing compositional variations in the fluid, or pulses, that are subsequently detected downstream from the point of creation to derive a flow rate. Each pulse, comprising a small fluid volume, whose composition is different from the mean composition of the fluid, can be created by electrochemical means, such as by electrolysis of a solvent, electrolysis of a dissolved species, or electrodialysis of a dissolved ionic species. Measurements of the conductivity of the fluid can be used to detect the arrival time of the pulses, from which the fluid flow rate can be determined

  1. Regulatory approaches for addressing dissolved oxygen concerns at hydropower facilities

    SciTech Connect (OSTI)

    Peterson, Mark J.; Cada, Glenn F.; Sale, Michael J.; Eddlemon, Gerald K.

    2003-03-01

    Low dissolved oxygen (DO) concentrations are a common water quality problem downstream of hydropower facilities. At some facilities, structural improvements (e.g. installation of weir dams or aerating turbines) or operational changes (e.g., spilling water over the dam) can be made to improve DO levels. In other cases, structural and operational approaches are too costly for the project to implement or are likely to be of limited effectiveness. Despite improvements in overall water quality below dams in recent years, many hydropower projects are unable to meet state water quality standards for DO. Regulatory agencies in the U.S. are considering or implementing dramatic changes in their approach to protecting the quality of the Nation’s waters. New policies and initiatives have emphasized flexibility, increased collaboration and shared responsibility among all parties, and market-based, economic incentives. The use of new regulatory approaches may now be a viable option for addressing the DO problem at some hydropower facilities. This report summarizes some of the regulatory-related options available to hydropower projects, including negotiation of site-specific water quality criteria, use of biological monitoring, watershed-based strategies for the management of water quality, and watershed-based trading. Key decision points center on the health of the local biological communities and whether there are contributing impacts (i.e., other sources of low DO effluents) in the watershed. If the biological communities downstream of the hydropower project are healthy, negotiation for site-specific water quality standards or biocriteria (discharge performance criteria based on characteristics of the aquatic biota) might be pursued. If there are other effluent dischargers in the watershed that contribute to low DO problems, watershed-scale strategies and effluent trading may be effective. This report examines the value of regulatory approaches by reviewing their use in other

  2. Molecular simulation of a model of dissolved organic matter

    SciTech Connect (OSTI)

    Sutton, Rebecca; Sposito, Garrison; Diallo, Mamadou S.; Schulten,Hans-Rolf

    2004-11-08

    A series of atomistic simulations was performed to assess the ability of the Schulten dissolved organic matter (DOM) molecule, a well-established model humic molecule, to reproduce the physical and chemical behavior of natural humic substances. The unhydrated DOM molecule had a bulk density value appropriate to humic matter, but its Hildebrand solubility parameter was lower than the range of current experimental estimates. Under hydrated conditions, the DOM molecule went through conformational adjustments that resulted in disruption of intramolecular hydrogen bonds (H-bonds), although few water molecules penetrated the organic interior. The radius of gyration of the hydrated DOM molecule was similar to those measured for aquatic humic substances. To simulate humic materials under aqueous conditions with varying pH levels, carboxyl groups were deprotonated, and hydrated Na{sup +} or Ca{sup 2+} were added to balance the resulting negative charge. Because of intrusion of the cation hydrates, the model metal- humic structures were more porous, had greater solvent-accessible surface areas, and formed more H-bonds with water than the protonated, hydrated DOM molecule. Relative to Na{sup +}, Ca{sup 2+} was both more strongly bound to carboxylate groups and more fully hydrated. This difference was attributed to the higher charge of the divalent cation. The Ca-DOM hydrate, however, featured fewer H-bonds than the Na-DOM hydrate, perhaps because of the reduced orientational freedom of organic moieties and water molecules imposed by Ca{sup 2+}. The present work is, to our knowledge, the first rigorous computational exploration regarding the behavior of a model humic molecule under a range of physical conditions typical of soil and water systems.

  3. Hydride compositions

    DOE Patents [OSTI]

    Lee, Myung, W.

    1994-01-01

    Disclosed are a composition for use in storing hydrogen and a method for making the composition. The composition comprises a mixture of two or more hydrides, each hydride having a different series of hydrogen sorption isotherms that contribute to the overall isotherms of the mixture. The hydrides are chosen so that the isotherms of the mixture have regions wherein the H equilibrium pressure increases with increasing hydrogen, preferably linearly. The isotherms of the mixture can be adjusted by selecting hydrides with different isotherms and by varying the amounts of the individual hydrides, or both. Preferably, the mixture is made up of hydrides that have isotherms with substantially flat plateaus and in nearly equimolar amounts. The composition is activated by degassing, exposing to H, and then heating below the softening temperature of any of the constituents. When the composition is used to store hydrogen, its hydrogen content can be found simply by measuring P{sub H}{sub 2} and determining H/M from the isothermic function of the composition.

  4. Hydride compositions

    DOE Patents [OSTI]

    Lee, Myung W.

    1995-01-01

    A composition for use in storing hydrogen, and a method for making the composition. The composition comprises a mixture of two or more hydrides, each hydride having a different series of hydrogen sorption isotherms that contribute to the overall isotherms of the mixture. The hydrides are chosen so that the isotherms of the mixture have regions wherein the hydrogen equilibrium pressure increases with increasing hydrogen, preferably linearly. The isotherms of the mixture can be adjusted by selecting hydrides with different isotherms and by varying the amounts of the individual hydrides, or both. Preferably, the mixture is made up of hydrides that have isotherms with substantially flat plateaus and in nearly equimolar amounts. The composition is activated by degassing, exposing to hydrogen and then heating at a temperature below the softening temperature of any of the. constituents so that their chemical and structural integrity is preserved. When the composition is used to store hydrogen, its hydrogen content can be found simply by measuring P.sub.H.sbsb.2 and determining H/M from the isothermic function of the composition.

  5. Development of a promising filtration method for liquid clarification in nuclear facilities. [For TMI-2 water, reprocessing dissolver solutions, ZnBr/sub 2/ shielding solutions

    SciTech Connect (OSTI)

    Collins, E.D.; Knauer, J.B.; Byrd, L.A.; Ross, R.G.; Savage, H.C.

    1982-01-01

    Conclusions reached are that deep beds of diatomaceous earths are especially attractive for clarification of radioactive solutions, or slurries containing insoluble radioactive material, because the diatomaceous material provides a noncompressible medium that is retentive for a wide variety of particle sizes. Also, the diatomaceous material, because of its inorganic composition, is resistant to degradation by radiation from the retained particulate matter. Its silicious character is especially appropriate for conversion to vitrified or cement-type waste forms. This paper studied the use of diatomaceous earth to filter synthetic TMI-2 water, reprocessing dissolver solutions, and zinc bromide solutions (hot-cell shielding).

  6. Higher modulus compositions incorporating particulate rubber

    DOE Patents [OSTI]

    McInnis, E.L.; Bauman, B.D.; Williams, M.A.

    1996-04-09

    Rubber particles, to be used as fillers or extenders for various composite polymer systems, are chlorinated by a gas-solid phase reaction with a chlorine-containing gas. A composite polymer containing the chlorinated rubber fillers or extenders exhibits a higher flexural modulus than if prepared using an unchlorinated rubber filler or extender. Chlorination of the rubber particles is carried out by contacting the finely divided rubber particles with a chlorine-containing gas comprising at least about 5 volume percent chlorine. Advantageously, the chlorine can be diluted with air, nitrogen or other essentially inert gases and may contain minor amounts of fluorine. Improved performance is obtained with nitrogen dilution of the chlorine gas over air dilution. Improved polymer composite systems having higher flexural modulus result from the use of the chlorinated rubber particles as fillers instead of unchlorinated rubber particles. 2 figs.

  7. Higher modulus compositions incorporating particulate rubber

    DOE Patents [OSTI]

    McInnis, E.L.; Scharff, R.P.; Bauman, B.D.; Williams, M.A.

    1995-01-17

    Rubber particles, to be used as fillers or extenders for various composite polymer systems, are chlorinated by a gas-solid phase reaction with a chlorine-containing gas. A composite polymer containing the chlorinated rubber fillers or extenders exhibits a higher flexural modulus than if prepared using an unchlorinated rubber filler or extender. Chlorination of the rubber particles is carried out by contacting the finely divided rubber particles with a chlorine-containing gas comprising at least about 5 volume percent chlorine. Advantageously, the chlorine can be diluted with air, nitrogen or other essentially inert gases and may contain minor amounts of fluorine. Improved performance is obtained with nitrogen dilution of the chlorine gas over air dilution. Improved polymer composite systems having higher flexural modulus result from the use of the chlorinated rubber particles as fillers instead of unchlorinated rubber particles. 2 figures.

  8. Higher modulus compositions incorporating particulate rubber

    DOE Patents [OSTI]

    Bauman, B.D.; Williams, M.A.; Bagheri, R.

    1997-12-02

    Rubber particles, to be used as fillers or extenders for various composite polymer systems, are chlorinated by a gas-solid phase reaction with a chlorine-containing gas. A composite polymer containing the chlorinated rubber fillers or extenders exhibits a higher flexural modulus than if prepared using an unchlorinated rubber filler or extender. Chlorination of the rubber particles is carried out by contacting the finely divided rubber particles with a chlorine-containing gas comprising at least about 5 volume percent chlorine. Advantageously, the chlorine can be diluted with air, nitrogen or other essentially inert gases and may contain minor amounts of fluorine. Improved performance is obtained with nitrogen dilution of the chlorine gas over air dilution. Improved polymer composite systems having higher flexural modulus result from the use of the chlorinated rubber particles as fillers instead of unchlorinated rubber particles. 2 figs.

  9. Higher modulus compositions incorporating particulate rubber

    DOE Patents [OSTI]

    McInnis, Edwin L.; Bauman, Bernard D.; Williams, Mark A.

    1996-04-09

    Rubber particles, to be used as fillers or extenders for various composite polymer systems, are chlorinated by a gas-solid phase reaction with a chlorine-containing gas. A composite polymer containing the chlorinated rubber fillers or extenders exhibits a higher flexural modulus than if prepared using an unchlorinated rubber filler or extender. Chlorination of the rubber particles is carried out by contacting the finely divided rubber particles with a chlorine-containing gas comprising at least about 5 volume percent chlorine. Advantageously, the chlorine can be diluted with air, nitrogen or other essentially inert gases and may contain minor amounts of fluorine. Improved performance is obtained with nitrogen dilution of the chlorine gas over air dilution. Improved polymer composite systems having higher flexural modulus result from the use of the chlorinated rubber particles as fillers instead of unchlorinated rubber particles.

  10. Higher modulus compositions incorporating particulate rubber

    DOE Patents [OSTI]

    Bauman, Bernard D.; Williams, Mark A.; Bagheri, Reza

    1997-12-02

    Rubber particles, to be used as fillers or extenders for various composite polymer systems, are chlorinated by a gas-solid phase reaction with a chlorine-containing gas. A composite polymer containing the chlorinated rubber fillers or extenders exhibits a higher flexural modulus than if prepared using an unchlorinated rubber filler or extender. Chlorination of the rubber particles is carried out by contacting the finely divided rubber particles with a chlorine-containing gas comprising at least about 5 volume percent chlorine. Advantageously, the chlorine can be diluted with air, nitrogen or other essentially inert gases and may contain minor amounts of fluorine. Improved performance is obtained with nitrogen dilution of the chlorine gas over air dilution. Improved polymer composite systems having higher flexural modulus result from the use of the chlorinated rubber particles as fillers instead of unchlorinated rubber particles.

  11. Higher modulus compositions incorporating particulate rubber

    DOE Patents [OSTI]

    McInnis, Edwin L.; Scharff, Robert P.; Bauman, Bernard D.; Williams, Mark A.

    1995-01-01

    Rubber particles, to be used as fillers or extenders for various composite polymer systems, are chlorinated by a gas-solid phase reaction with a chlorine-containing gas. A composite polymer containing the chlorinated rubber fillers or extenders exhibits a higher flexural modulus than if prepared using an unchlorinated rubber filler or extender. Chlorination of the rubber particles is carried out by contacting the finely divided rubber particles with a chlorine-containing gas comprising at least about 5 volume percent chlorine. Advantageously, the chlorine can be diluted with air, nitrogen or other essentially inert gases and may contain minor amounts of fluorine. Improved performance is obtained with nitrogen dilution of the chlorine gas over air dilution. Improved polymer composite systems having higher flexural modulus result from the use of the chlorinated rubber particles as fillers instead of unchlorinated rubber particles.

  12. Virginia Natural Gas Reserves Summary as of Dec. 31

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

    3,091 3,215 2,832 2,579 2,373 2,800 1982-2014 Natural Gas Nonassociated, Wet After Lease Separation 3,091 3,215 2,832 2,579 2,373 2,800 1982-2014 Natural Gas Associated-Dissolved, Wet After Lease Separation 0 0 0 1982-2014 Dry Natural Gas 3,091 3,215 2,832 2,579 2,373 2,800 1982-2014

  13. West Virginia Natural Gas Reserves Summary as of Dec. 31

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

    6,090 7,163 10,532 14,881 23,209 31,153 1979-2014 Natural Gas Nonassociated, Wet After Lease Separation 6,066 7,134 10,480 14,860 23,139 31,121 1979-2014 Natural Gas Associated-Dissolved, Wet After Lease Separation 24 29 52 21 70 32 1979-2014 Dry Natural Gas 5,946 7,000 10,345 14,611 22,765 29,432

  14. Arkansas Natural Gas Reserves Summary as of Dec. 31

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

    10,872 14,181 16,374 11,039 13,524 12,795 1979-2014 Natural Gas Nonassociated, Wet After Lease Separation 10,852 14,152 16,328 10,957 13,389 12,606 1979-2014 Natural Gas Associated-Dissolved, Wet After Lease Separation 20 29 46 82 135 189 1979-2014 Dry Natural Gas 10,869 14,178 16,370 11,035 13,518 12,789

  15. Colorado Natural Gas Reserves Summary as of Dec. 31

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

    4,081 25,372 26,151 21,674 23,533 21,992 1979-2014 Natural Gas Nonassociated, Wet After Lease Separation 22,199 23,001 23,633 18,226 19,253 16,510 1979-2014 Natural Gas Associated-Dissolved, Wet After Lease Separation 1,882 2,371 2,518 3,448 4,280 5,482 1979-2014 Dry Natural Gas 23,058 24,119 24,821 20,666 22,381 20,851

  16. Kansas Natural Gas Reserves Summary as of Dec. 31

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

    3,500 3,937 3,747 3,557 3,772 4,606 1979-2014 Natural Gas Nonassociated, Wet After Lease Separation 3,417 3,858 3,620 3,231 3,339 3,949 1979-2014 Natural Gas Associated-Dissolved, Wet After Lease Separation 83 79 127 326 433 657 1979-2014 Dry Natural Gas 3,279 3,673 3,486 3,308 3,592 4,359

  17. New Mexico Natural Gas Reserves Summary as of Dec. 31

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

    6,644 16,529 16,138 14,553 14,567 16,426 1979-2014 Natural Gas Nonassociated, Wet After Lease Separation 14,662 14,316 13,586 11,734 11,154 11,743 1979-2014 Natural Gas Associated-Dissolved, Wet After Lease Separation 1,982 2,213 2,552 2,819 3,413 4,683 1979-2014 Dry Natural Gas 15,598 15,412 15,005 13,586 13,576 15,283

  18. North Dakota Natural Gas Reserves Summary as of Dec. 31

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

    ,213 1,869 2,652 3,974 6,081 6,787 1979-2014 Natural Gas Nonassociated, Wet After Lease Separation 143 152 141 105 91 45 1979-2014 Natural Gas Associated-Dissolved, Wet After Lease Separation 1,070 1,717 2,511 3,869 5,990 6,742 1979-2014 Dry Natural Gas 1,079 1,667 2,381 3,569 5,420 6,034

  19. North Louisiana Natural Gas Reserves Summary as of Dec. 31

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

    17,273 26,136 27,411 18,467 17,112 19,837 1979-2014 Natural Gas Nonassociated, Wet After Lease Separation 17,220 26,063 27,313 18,385 16,933 19,645 1979-2014 Natural Gas Associated-Dissolved, Wet After Lease Separation 53 73 98 82 179 192 1979-2014 Dry Natural Gas 17,143 26,030 27,337 18,418 17,044 19,722

  20. NM, West Natural Gas Reserves Summary as of Dec. 31

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

    2,086 11,809 11,254 9,720 9,459 9,992 1979-2014 Natural Gas Nonassociated, Wet After Lease Separation 12,004 11,704 11,111 9,578 9,322 9,766 1979-2014 Natural Gas Associated-Dissolved, Wet After Lease Separation 82 105 143 142 137 226 1979-2014 Dry Natural Gas 11,457 11,186 10,626 9,200 8,943 9,484

  1. Alabama Natural Gas Reserves Summary as of Dec. 31

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

    2,948 2,724 2,570 2,304 1,670 2,121 1979-2014 Natural Gas Nonassociated, Wet After Lease Separation 2,919 2,686 2,522 2,204 1,624 1,980 1979-2014 Natural Gas Associated-Dissolved, Wet After Lease Separation 29 38 48 100 46 141 1979-2014 Dry Natural Gas 2,871 2,629 2,475 2,228 1,597 2,036

  2. Alaska Natural Gas Reserves Summary as of Dec. 31

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

    9,183 8,917 9,511 9,667 7,383 6,805 1979-2014 Natural Gas Nonassociated, Wet After Lease Separation 1,090 1,021 976 995 955 954 1979-2014 Natural Gas Associated-Dissolved, Wet After Lease Separation 8,093 7,896 8,535 8,672 6,428 5,851 1979-2014 Dry Natural Gas 9,101 8,838 9,424 9,579 7,316 6,745

  3. Composite material

    DOE Patents [OSTI]

    Hutchens, Stacy A.; Woodward, Jonathan; Evans, Barbara R.; O'Neill, Hugh M.

    2012-02-07

    A composite biocompatible hydrogel material includes a porous polymer matrix, the polymer matrix including a plurality of pores and providing a Young's modulus of at least 10 GPa. A calcium comprising salt is disposed in at least some of the pores. The porous polymer matrix can comprise cellulose, including bacterial cellulose. The composite can be used as a bone graft material. A method of tissue repair within the body of animals includes the steps of providing a composite biocompatible hydrogel material including a porous polymer matrix, the polymer matrix including a plurality of pores and providing a Young's modulus of at least 10 GPa, and inserting the hydrogel material into cartilage or bone tissue of an animal, wherein the hydrogel material supports cell colonization in vitro for autologous cell seeding.

  4. Effect of reaction conditions on film morphology of polyaniline composite

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

    membranes for gas separation | Center for Gas SeparationsRelevant to Clean Energy Technologies | Blandine Jerome Effect of reaction conditions on film morphology of polyaniline composite membranes for gas separation Previous Next List N. V. Blinova, J. Stejskal, J. M. J. Frechet, and F. Svec, J. Polym. Sci. Pol. Chem. 50 (15), 3077 (2012) DOI: 10.1002/pola.26093 Thumbnail image of graphical abstract Abstract: Novel composite membranes combining a 90-200 nm thick active layer of polyaniline

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

    SciTech Connect (OSTI)

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

    2006-03-01

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

  6. NM, West Natural Gas Liquids Proved Reserves

    Gasoline and Diesel Fuel Update (EIA)

    4,558 4,720 4,884 4,833 5,108 6,434 1979-2014 Natural Gas Nonassociated, Wet After Lease Separation 2,658 2,612 2,475 2,156 1,832 1,977 1979-2014 Natural Gas Associated-Dissolved, Wet After Lease Separation 1,900 2,108 2,409 2,677 3,276 4,457 1979-2014 Dry Natural Gas 4,141 4,226 4,379 4,386 4,633 5,799 Separation

    ,658 2,612 2,475 2,156 1,832 1,977 1979-2014 Adjustments 149 -49 -92 31 -97 111 1979-2014 Revision Increases 298 339 237 253 343 463 1979-2014 Revision Decreases 406 225 301 515

  7. Effect of dissolved CO2 on a shallow groundwater system: A controlled

    Office of Scientific and Technical Information (OSTI)

    release experiment (Journal Article) | SciTech Connect Effect of dissolved CO2 on a shallow groundwater system: A controlled release experiment Citation Details In-Document Search Title: Effect of dissolved CO2 on a shallow groundwater system: A controlled release experiment Authors: Trautz, R. C. ; Pugh, J. D. ; Varadharajan, C. ; Zheng, L. ; Bianchi, M. ; Nico, P. S. ; Spycher, N. F. ; Newell, D. L. ; Esposito, R. A. ; Wu, Y. ; Dafflon, B. ; Hubbard, S. S. ; Birkholzer, J. T. Publication

  8. COMPOSITE ELEMENT

    DOE Patents [OSTI]

    Schaner, B.E.; Wolfe, R.A.

    1962-12-18

    Composite fuel eiements of the sandwich type are reported. The invention resides in the use of a layer of graphite on the interfaces of the flssile material and the cladding to prevent interdiffusion of the fissile material and the ciadding material. (AEC)

  9. Method of Determining the Extent to which a Nickel Structure has been Attached by a Fluorine-Containing Gas

    DOE Patents [OSTI]

    Brusie, James P.

    2004-07-13

    The method of determining the extent to which a nickel structure has been attacked by a halogen containing gas to which it has been exposed which comprises preparing a quantity of water substantially free from dissolved oxygen, passing ammonia gas through a cuprammonium solution to produce ammonia substantially free from oxygen, dissolving said oxygen-free ammonia in said water to produce a saturated aqueous ammonia solution free from uncombined oxygen, treating at least a portion of said nickel structure of predetermined weight with said solution to dissolve nickel compounds from the surface of said structure without dissolving an appreciable amount of said nickel and analyzing the resulting solution to determine the quantity of said nickel compounds that was associated with said said portion of said structure to determine the proportion of combined nickel in said nickel structure.

  10. Method of determining the extent to which a nickel structure has been attached by a fluorine-containing gas

    DOE Patents [OSTI]

    Brusie, James P.

    2004-07-13

    The method of determining the extent to which a nickel structure has been attacked by a halogen containing gas to which it has been exposed which comprises preparing a quantity of water substantially free from dissolved oxygen, passing ammonia gas through a cuprammonium solution to produce ammonia substantially free from oxygen, dissolving said oxygen-free ammonia in said water to produce a saturated aqueous ammonia solution free from uncombined oxygen, treating at least a portion of said nickel structure of predetermined weight with said solution to dissolve nickel compounds from the surface of said structure without dissolving an appreciable amount of said nickel and analyzing the resulting solution to determine the quantity of said nickel compounds that was associated with said said portion of said structure to determine the proportion of combined nickel in said nickel structure.

  11. Phosphorescent compositions, methods of making the compositions, and methods of using the compositions

    DOE Patents [OSTI]

    Jia, Weiyi; Wang, Xiaojun; Jia, George D.; Lewis, Linda; Yen, Laurel C.

    2014-06-24

    Compositions, methods of making compositions, materials including compositions, crayons including compositions, paint including compositions, ink including compositions, waxes including compositions, polymers including compositions, vesicles including the compositions, methods of making each, and the like are disclosed.

  12. Phosphorescent compositions, methods of making the compositions, and methods of using the compositions

    DOE Patents [OSTI]

    Jia, Weiyi; Wang, Xiaojun; Yen, William; Yen, Laurel C.; Jia, George D.

    2012-12-04

    Compositions, methods of making compositions, materials including compositions, crayons including compositions, paint including compositions, ink including compositions, waxes including compositions, polymers including compositions, vesicles including the compositions, methods of making each, and the like are disclosed.

  13. COAL CLEANING BY GAS AGGLOMERATION

    SciTech Connect (OSTI)

    T.D. Wheelock

    1999-03-01

    The technical feasibility of a gas agglomeration method for cleaning coal was demonstrated by means of bench-scale tests conducted with a mixing system which enabled the treatment of ultra-fine coal particles with a colloidal suspension of microscopic gas bubbles in water. A suitable suspension of microbubbles was prepared by first saturating water with air or carbon dioxide under pressure then reducing the pressure to release the dissolved gas. The formation of microbubbles was facilitated by agitation and a small amount of i-octane. When the suspension of microbubbles and coal particles was mixed, agglomeration was rapid and small spherical agglomerates were produced. Since the agglomerates floated, they were separated from the nonfloating tailings in a settling chamber. By employing this process in numerous agglomeration tests of moderately hydrophobic coals with 26 wt.% ash, it was shown that the ash content would be reduced to 6--7 wt.% while achieving a coal recovery of 75 to 85% on a dry, ash-free basis. This was accomplished by employing a solids concentration of 3 to 5 w/w%, an air saturation pressure of 136 to 205 kPa (5 to 15 psig), and an i-octane concentration of 1.0 v/w% based on the weight of coal.

  14. Neural net controlled tag gas sampling system for nuclear reactors

    DOE Patents [OSTI]

    Gross, Kenneth C.; Laug, Matthew T.; Lambert, John D. B.; Herzog, James P.

    1997-01-01

    A method and system for providing a tag gas identifier to a nuclear fuel rod and analyze escaped tag gas to identify a particular failed nuclear fuel rod. The method and system include disposing a unique tag gas composition into a plenum of a nuclear fuel rod, monitoring gamma ray activity, analyzing gamma ray signals to assess whether a nuclear fuel rod has failed and is emitting tag gas, activating a tag gas sampling and analysis system upon sensing tag gas emission from a failed nuclear rod and evaluating the escaped tag gas to identify the particular failed nuclear fuel rod.

  15. Neural net controlled tag gas sampling system for nuclear reactors

    DOE Patents [OSTI]

    Gross, K.C.; Laug, M.T.; Lambert, J.B.; Herzog, J.P.

    1997-02-11

    A method and system are disclosed for providing a tag gas identifier to a nuclear fuel rod and analyze escaped tag gas to identify a particular failed nuclear fuel rod. The method and system include disposing a unique tag gas composition into a plenum of a nuclear fuel rod, monitoring gamma ray activity, analyzing gamma ray signals to assess whether a nuclear fuel rod has failed and is emitting tag gas, activating a tag gas sampling and analysis system upon sensing tag gas emission from a failed nuclear rod and evaluating the escaped tag gas to identify the particular failed nuclear fuel rod. 12 figs.

  16. GAS TEMPERATURE AND CONCENTRATION MEASUREMENTS IN THE VICINITY OF A

    Office of Scientific and Technical Information (OSTI)

    BURNING/DECOMPOSING CARBON-EPOXY AIRCRAFT COMPOSITE MATERIAL. (Conference) | SciTech Connect GAS TEMPERATURE AND CONCENTRATION MEASUREMENTS IN THE VICINITY OF A BURNING/DECOMPOSING CARBON-EPOXY AIRCRAFT COMPOSITE MATERIAL. Citation Details In-Document Search Title: GAS TEMPERATURE AND CONCENTRATION MEASUREMENTS IN THE VICINITY OF A BURNING/DECOMPOSING CARBON-EPOXY AIRCRAFT COMPOSITE MATERIAL. Abstract not provided. Authors: Dodd, Amanda B. ; Bohlin, Gustav Alexis ; Kliewer, Christopher Jesse

  17. Gas temperature and concentration measurements in the vicinity of a

    Office of Scientific and Technical Information (OSTI)

    burning/decomposing carbon-epoxy aircraft composite material. (Conference) | SciTech Connect Gas temperature and concentration measurements in the vicinity of a burning/decomposing carbon-epoxy aircraft composite material. Citation Details In-Document Search Title: Gas temperature and concentration measurements in the vicinity of a burning/decomposing carbon-epoxy aircraft composite material. Abstract not provided. Authors: Kearney, Sean Patrick ; Dodd, Amanda B. ; Bohlin, Gustav Alexis ;

  18. Enhanced electrodes for solid state gas sensors

    DOE Patents [OSTI]

    Garzon, Fernando H.; Brosha, Eric L.

    2001-01-01

    A solid state gas sensor generates an electrical potential between an equilibrium electrode and a second electrode indicative of a gas to be sensed. A solid electrolyte substrate has the second electrode mounted on a first portion of the electrolyte substrate and a composite equilibrium electrode including conterminous transition metal oxide and Pt components mounted on a second portion of the electrolyte substrate. The composite equilibrium electrode and the second electrode are electrically connected to generate an electrical potential indicative of the gas that is being sensed. In a particular embodiment of the present invention, the second electrode is a reference electrode that is exposed to a reference oxygen gas mixture so that the electrical potential is indicative of the oxygen in a gas stream.

  19. Natural Gas Regulation

    Broader source: Energy.gov [DOE]

    The Natural Gas Act of 1938, as amended, requires any person who wishes to import and/or export natural gas, (including liquefied natural gas, compressed natural gas, compressed gas liquids, etc.)...

  20. Morphology of Gas Release in Physical Simulants

    SciTech Connect (OSTI)

    Daniel, Richard C.; Burns, Carolyn A.; Crawford, Amanda D.; Hylden, Laura R.; Bryan, Samuel A.; MacFarlan, Paul J.; Gauglitz, Phillip A.

    2014-07-03

    This report documents testing activities conducted as part of the Deep Sludge Gas Release Event Project (DSGREP). The testing described in this report focused on evaluating the potential retention and release mechanisms of hydrogen bubbles in underground radioactive waste storage tanks at Hanford. The goal of the testing was to evaluate the rate, extent, and morphology of gas release events in simulant materials. Previous, undocumented scoping tests have evidenced dramatically different gas release behavior from simulants with similar physical properties. Specifically, previous gas release tests have evaluated the extent of release of 30 Pa kaolin and 30 Pa bentonite clay slurries. While both materials are clays and both have equivalent material shear strength using a shear vane, it was found that upon stirring, gas was released immediately and completely from bentonite clay slurry while little if any gas was released from the kaolin slurry. The motivation for the current work is to replicate these tests in a controlled quality test environment and to evaluate the release behavior for another simulant used in DSGREP testing. Three simulant materials were evaluated: 1) a 30 Pa kaolin clay slurry, 2) a 30 Pa bentonite clay slurry, and 3) Rayleigh-Taylor (RT) Simulant (a simulant designed to support DSGREP RT instability testing. Entrained gas was generated in these simulant materials using two methods: 1) application of vacuum over about a 1-minute period to nucleate dissolved gas within the simulant and 2) addition of hydrogen peroxide to generate gas by peroxide decomposition in the simulants over about a 16-hour period. Bubble release was effected by vibrating the test material using an external vibrating table. When testing with hydrogen peroxide, gas release was also accomplished by stirring of the simulant.

  1. Gas sensor

    DOE Patents [OSTI]

    Schmid, Andreas K.; Mascaraque, Arantzazu; Santos, Benito; de la Figuera, Juan

    2014-09-09

    A gas sensor is described which incorporates a sensor stack comprising a first film layer of a ferromagnetic material, a spacer layer, and a second film layer of the ferromagnetic material. The first film layer is fabricated so that it exhibits a dependence of its magnetic anisotropy direction on the presence of a gas, That is, the orientation of the easy axis of magnetization will flip from out-of-plane to in-plane when the gas to be detected is present in sufficient concentration. By monitoring the change in resistance of the sensor stack when the orientation of the first layer's magnetization changes, and correlating that change with temperature one can determine both the identity and relative concentration of the detected gas. In one embodiment the stack sensor comprises a top ferromagnetic layer two mono layers thick of cobalt deposited upon a spacer layer of ruthenium, which in turn has a second layer of cobalt disposed on its other side, this second cobalt layer in contact with a programmable heater chip.

  2. Apparatus and method for excluding gas from a liquid

    DOE Patents [OSTI]

    Murphy, Jr., Robert J. (Bellaire, TX)

    1985-01-01

    The present invention is directed to an apparatus and method for preventing diffusion of a gas under high pressure into the bulk of a liquid filling a substantially closed chamber. This apparatus and method is particularly useful in connection with test devices for testing fluid characteristics under harsh conditions of extremely high pressure and high temperature. These devices typically pressurize the liquid by placing the liquid in pressure and fluid communication with a high pressure inert gas. The apparatus and method of the present invention prevent diffusion of the pressurizing gas into the bulk of the test liquid by decreasing the chamber volume at a rate sufficient to maintain the bulk of the liquid free of absorbed or dissolved gas by expelling that portion of the liquid which is contaminated by the pressurizing gas.

  3. Novel high explosive compositions

    DOE Patents [OSTI]

    Perry, D.D.; Fein, M.M.; Schoenfelder, C.W.

    1968-04-16

    This is a technique of preparing explosive compositions by the in-situ reaction of polynitroaliphatic compounds with one or more carboranes or carborane derivatives. One or more polynitroaliphatic reactants are combined with one or more carborane reactants in a suitable container and mixed to a homogeneous reaction mixture using a stream of inert gas or conventional mixing means. Ordinarily the container is a fissure, crack, or crevice in which the explosive is to be implanted. The ratio of reactants will determine not only the stoichiometry of the system, but will effect the quality and quantity of combustion products, the explosive force obtained as well as the impact sensitivity. The test values can shift with even relatively slight changes or modifications in the reaction conditions. Eighteen illustrative examples accompany the disclosure. (46 claims)

  4. GAS SEAL

    DOE Patents [OSTI]

    Monson, H.; Hutter, E.

    1961-07-11

    A seal is described for a cover closing an opening in the top of a pressure vessel that may house a nuclear reactor. The seal comprises a U-shaped trough formed on the pressure vessel around the opening therein, a mass of metal in the trough, and an edge flange on the cover extending loosely into the trough and dipping into the metal mass. The lower portion of the metal mass is kept melted, and the upper portion, solid. The solid pontion of the metal mass prevents pressure surges in the vessel from expelling the liquid portion of the metal mass from the trough; the liquld portion, thus held in place by the solid portion, does not allow gas to go through, and so gas cannot escape through shrinkage holes in the solid portion.

  5. Natural Gas Weekly Update

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

    natural gas demand, thereby contributing to larger net injections of natural gas into storage. Other Market Trends: EIA Releases The Natural Gas Annual 2006: The Energy...

  6. Natural Gas Applications

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

    Gas Applications. If you need assistance viewing this page, please call (202) 586-8800. Energy Information Administration Home Page Home > Natural Gas > Natural Gas Applications...

  7. Concrete compositions and methods

    DOE Patents [OSTI]

    Chen, Irvin; Lee, Patricia Tung; Patterson, Joshua

    2015-06-23

    Provided herein are compositions, methods, and systems for cementitious compositions containing calcium carbonate compositions and aggregate. The compositions find use in a variety of applications, including use in a variety of building materials and building applications.

  8. Method of making gas diffusion layers for electrochemical cells

    DOE Patents [OSTI]

    Frisk, Joseph William; Boand, Wayne Meredith; Larson, James Michael

    2002-01-01

    A method is provided for making a gas diffusion layer for an electrochemical cell comprising the steps of: a) combining carbon particles and one or more surfactants in a typically aqueous vehicle to make a preliminary composition, typically by high shear mixing; b) adding one or more highly fluorinated polymers to said preliminary composition by low shear mixing to make a coating composition; and c) applying the coating composition to an electrically conductive porous substrate, typically by a low shear coating method.

  9. Thermal barrier and overlay coating systems comprising composite metal/metal oxide bond coating layers

    DOE Patents [OSTI]

    Goedjen, John G.; Sabol, Stephen M.; Sloan, Kelly M.; Vance, Steven J.

    2001-01-01

    The present invention generally describes multilayer coating systems comprising a composite metal/metal oxide bond coat layer. The coating systems may be used in gas turbines.

  10. Gas treating alternatives for LNG plants

    SciTech Connect (OSTI)

    Clarke, D.S.; Sibal, P.W.

    1998-12-31

    This paper covers the various gas treating processes available for treating sour natural gas to specifications required for LNG production. The LNG product specification requires that the total sulfur level be less than 30--40 ppmv, the CO{sub 2} level be less than 50 ppmv and the water level be less than 100 ppmv to prevent freezing problems in the LNG cryogenic column. A wide variety of natural gas compositions are encountered in the various fields and the gas treating process selection is dependent on the type of impurities present in the gas, namely, levels of H{sub 2}S, CO{sub 2}, mercaptans and other organic sulfur compounds. This paper discusses the implications various components in the feed to the LNG plant can have on process selection, and the various treating processes that are available to condition the gas. Process selection criteria, design and operating philosophies are discussed. An economic comparison for two treating schemes is provided.

  11. Aerogel composites and method of manufacture

    DOE Patents [OSTI]

    Cao, Wanqing (Alameda, CA); Hunt, Arlon Jason (Oakland, CA)

    1999-01-01

    Disclosed herewith is a process of forming an aerogel composite which comprises introducing a gaseous material into a formed aerogel monolith or powder, and causing decomposition of said gaseous material in said aerogel in amounts sufficient to cause deposition of the decomposition products of the gas on the surfaces of the pores of the said aerogel. Also disclosed are the composites made by the process.

  12. Composite media for fluid stream processing, a method of forming the composite media, and a related method of processing a fluid stream

    DOE Patents [OSTI]

    Garn, Troy G; Law, Jack D; Greenhalgh, Mitchell R; Tranter, Rhonda

    2014-04-01

    A composite media including at least one crystalline aluminosilicate material in polyacrylonitrile. A method of forming a composite media is also disclosed. The method comprises dissolving polyacrylonitrile in an organic solvent to form a matrix solution. At least one crystalline aluminosilicate material is combined with the matrix solution to form a composite media solution. The organic solvent present in the composite media solution is diluted. The composite media solution is solidified. In addition, a method of processing a fluid stream is disclosed. The method comprises providing a beads of a composite media comprising at least one crystalline aluminosilicate material dispersed in a polyacrylonitrile matrix. The beads of the composite media are contacted with a fluid stream comprising at least one constituent. The at least one constituent is substantially removed from the fluid stream.

  13. Texas Natural Gas in Underground Storage (Working Gas) (Million...

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

    Working Gas) (Million Cubic Feet) Texas Natural Gas in Underground Storage (Working Gas) ... Underground Working Natural Gas in Storage - All Operators Texas Underground Natural Gas ...

  14. Method of separating lignocellulosic material into lignin, cellulose and dissolved sugars

    DOE Patents [OSTI]

    Black, S.K.; Hames, B.R.; Myers, M.D.

    1998-03-24

    A method is described for separating lignocellulosic material into (a) lignin, (b) cellulose, and (c) hemicellulose and dissolved sugars. Wood or herbaceous biomass is digested at elevated temperature in a single-phase mixture of alcohol, water and a water-immiscible organic solvent (e.g., a ketone). After digestion, the amount of water or organic solvent is adjusted so that there is phase separation. The lignin is present in the organic solvent, the cellulose is present in a solid pulp phase, and the aqueous phase includes hemicellulose and any dissolved sugars.

  15. Method of separating lignocellulosic material into lignin, cellulose and dissolved sugars

    DOE Patents [OSTI]

    Black, Stuart K.; Hames, Bonnie R.; Myers, Michele D.

    1998-01-01

    A method for separating lignocellulosic material into (a) lignin, (b) cellulose, and (c) hemicellulose and dissolved sugars. Wood or herbaceous biomass is digested at elevated temperature in a single-phase mixture of alcohol, water and a water-immiscible organic solvent (e.g., a ketone). After digestion, the amount of water or organic solvent is adjusted so that there is phase separation. The lignin is present in the organic solvent, the cellulose is present in a solid pulp phase, and the aqueous phase includes hemicellulose and any dissolved sugars.

  16. U.S. Natural Gas Reserves Summary as of Dec. 31

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

    283,879 317,647 348,809 322,670 353,994 388,841 1979-2014 Natural Gas Nonassociated, Wet After Lease Separation 250,496 281,901 305,986 269,514 295,504 319,724 1979-2014 Natural Gas Associated-Dissolved, Wet After Lease Separation 33,383 35,746 42,823 53,156 58,490 69,117 1979-2014 Dry Natural Gas 272,509 304,625 334,067 308,036 338,264 368,704 1925-2014 Natural Gas Liquids (Million Barrels) 1979

  17. ,"Natural Gas Consumption",,,"Natural Gas Expenditures"

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

    Census Division, 1999" ,"Natural Gas Consumption",,,"Natural Gas Expenditures" ,"per Building (thousand cubic feet)","per Square Foot (cubic feet)","per Worker (thousand cubic...

  18. Nonaqueous composition for slip casting or cold forming refractory material into solid shapes

    SciTech Connect (OSTI)

    Montgomery, L.C.

    1993-08-24

    A composition is described for slip casting or cold forming non-oxide refractory material(s) into solid shape comprising finely divided solid refractory materials selected from the group consisting of metal boride, refractory carbide, nitride, silicide and a refractory metal of tungsten, molybdenum, tantalum and chromium suspended in a nonaqueous liquid slip composition consisting essentially of a deflocculent composed of a vinyl chloride-vinyl acetate resin dissolved in an organic solvent.

  19. Composite foams

    DOE Patents [OSTI]

    Williams, Jr., Joel M.; Nyitray, Alice M.; Wilkerson, Mark H.

    1991-01-01

    Composite foams are provided comprising a first rigid, microcellular, open-celled organic polymer foam having a density of from about 0.015 g/cm.sup.3 to about 0.20 g/cm.sup.3 and a pore size of from about 1 micron to about 30 microns, said first foam containing a second polymer having a density of from about 0.015 g/cm.sup.3 to about 0.20 g/cm.sup.3 or a second polymer foam having a density of from about 0.015 g/cm.sup.3 to about 0.20 g/cm.sup.3 and a pore size of from about 0.01 microns to about 1.0 micron within the open cells of said first foam.

  20. Composite foams

    DOE Patents [OSTI]

    Williams, Jr., Joel M.; Nyitray, Alice M.; Wilkerson, Mark H.

    1990-01-01

    Composite foams are provided comprising a first rigid, microcellular, open-celled organic polymer foam having a density of from about 0.015 g/cm.sup.3 to about 0.20 g/cm.sup.3 and a pore size of from about 1 micron to about 30 microns, said first foam containing a second polymer having a density of from about 0.015 g/cm.sup.3 to about 0.20 g/cm.sup.3 or a second polymer foam having a density of from about 0.015 g/cm.sup.3 to about 0.20 g/cm.sup.3 and a pore size of from about 0.01 microns to about 1.0 micron within the open cells of said first foam.

  1. Upper ocean model of dissolved atmospheric gases. Final report for the period 1 August 1991--31 May 1995

    SciTech Connect (OSTI)

    Schudlich, R.; Emerson, S.

    1996-05-01

    This report summarizes results from three years of funding for a modelling study of processes controlling the distribution of metabolic chemical tracers in surface waters. We determined concentrations of the gases O{sub 2}, Ar, N{sub 2}, and the stable isotope ratio ({sup 18}O/{sup 16}O) of molecular oxygen in surface waters at Station ALOHA in conjunction with the Global Ocean Flux Study (GOFS) Hawaiian Ocean Time-series project during the years 1989- 90 and 1992-93. Under this contract we have incorporated chemical tracers into an existing ocean mixed-layer model to simulate the physical processes controlling the distribution and seasonal cycle of dissolved gases in the upper ocean. The broad background of concurrent chemical, physical, and biological measurements at Station ALOHA provides enough redundancy of ``ground truth`` to assess the model`s accuracy. Biological oxygen production estimated from modelled chemical tracers agrees with estimates based on measurement of carbon fluxes into the deep ocean and nitrate fluxes into the upper ocean during 1989-90 and 1992-93, verifying for the first time the utility of chemical tracers for determining biological fluxes in the ocean. Our results suggest that in the euphotic zone (the upper 100 m of the ocean), the net biological O{sub 2} production is 1.0-2. 0 moles m{sup -2}yr{sup - 1}. Inert gas (Ar, N{sub 2}) supersaturation levels show that air and bubble injection are important modes of air-sea gas transfer in the Station ALOHA region.

  2. Natural Gas Basics

    SciTech Connect (OSTI)

    NREL Clean Cities

    2010-04-01

    Fact sheet answers questions about natural gas production and use in transportation. Natural gas vehicles are also described.

  3. Method and apparatus for decreased undesired particle emissions in gas streams

    DOE Patents [OSTI]

    Durham, Michael Dean; Schlager, Richard John; Ebner, Timothy George; Stewart, Robin Michele; Bustard, Cynthia Jean

    1999-01-01

    The present invention discloses a process for removing undesired particles from a gas stream including the steps of contacting a composition containing an adhesive with the gas stream; collecting the undesired particles and adhesive on a collection surface to form an aggregate comprising the adhesive and undesired particles on the collection surface; and removing the agglomerate from the collection zone. The composition may then be atomized and injected into the gas stream. The composition may include a liquid that vaporizes in the gas stream. After the liquid vaporizes, adhesive particles are entrained in the gas stream. The process may be applied to electrostatic precipitators and filtration systems to improve undesired particle collection efficiency.

  4. Fiber Reinforced Polymer Composite Manufacturing Workshop

    Broader source: Energy.gov [DOE]

    A workshop on Fiber Reinforced Polymer (FRP) Composite Manufacturing (held January 13, 2014, in Arlington, VA) brought together stakeholders from industry and academia to discuss manufacturing of composites. The workshop explored emerging FRP composite market applications in clean energy and barriers to the development and widespread commercial use of these lightweight, high-strength and high-stiffness materials. Improving the manufacturing speed and quality-and reducing their manufacturing costs-could accelerate their use in automotive, wind, compressed gas storage and other clean energy and industrial applications.

  5. Method of dissolving metal oxides with di- or polyphosphonic acid and a redundant

    DOE Patents [OSTI]

    Horwitz, Earl P.; Chiarizia, Renato

    1996-01-01

    A method of dissolving metal oxides using a mixture of a di- or polyphosphonic acid and a reductant wherein each is present in a sufficient amount to provide a synergistic effect with respect to the dissolution of metal oxides and optionally containing corrosion inhibitors and pH adjusting agents.

  6. Method and apparatus for manufacturing gas tags

    DOE Patents [OSTI]

    Gross, Kenny C.; Laug, Matthew T.

    1996-01-01

    For use in the manufacture of gas tags employed in a gas tagging failure detection system for a nuclear reactor, a plurality of commercial feed gases each having a respective noble gas isotopic composition are blended under computer control to provide various tag gas mixtures having selected isotopic ratios which are optimized for specified defined conditions such as cost. Using a new approach employing a discrete variable structure rather than the known continuous-variable optimization problem, the computer controlled gas tag manufacturing process employs an analytical formalism from condensed matter physics known as stochastic relaxation, which is a special case of simulated annealing, for input feed gas selection. For a tag blending process involving M tag isotopes with N distinct feed gas mixtures commercially available from an enriched gas supplier, the manufacturing process calculates the cost difference between multiple combinations and specifies gas mixtures which approach the optimum defined conditions. The manufacturing process is then used to control tag blending apparatus incorporating tag gas canisters connected by stainless-steel tubing with computer controlled valves, with the canisters automatically filled with metered quantities of the required feed gases.

  7. Method and apparatus for manufacturing gas tags

    DOE Patents [OSTI]

    Gross, K.C.; Laug, M.T.

    1996-12-17

    For use in the manufacture of gas tags employed in a gas tagging failure detection system for a nuclear reactor, a plurality of commercial feed gases each having a respective noble gas isotopic composition are blended under computer control to provide various tag gas mixtures having selected isotopic ratios which are optimized for specified defined conditions such as cost. Using a new approach employing a discrete variable structure rather than the known continuous-variable optimization problem, the computer controlled gas tag manufacturing process employs an analytical formalism from condensed matter physics known as stochastic relaxation, which is a special case of simulated annealing, for input feed gas selection. For a tag blending process involving M tag isotopes with N distinct feed gas mixtures commercially available from an enriched gas supplier, the manufacturing process calculates the cost difference between multiple combinations and specifies gas mixtures which approach the optimum defined conditions. The manufacturing process is then used to control tag blending apparatus incorporating tag gas canisters connected by stainless-steel tubing with computer controlled valves, with the canisters automatically filled with metered quantities of the required feed gases. 4 figs.

  8. Removal of actinides from dissolved ORNL MVST sludge using the TRUEX process

    SciTech Connect (OSTI)

    Spencer, B.B.; Egan, B.Z.; Chase, C.W.

    1997-07-01

    Experiments were conducted to evaluate the transuranium extraction process for partitioning actinides from actual dissolved high-level radioactive waste sludge. All tests were performed at ambient temperature. Time and budget constraints permitted only two experimental campaigns. Samples of sludge from Melton Valley Storage Tank W-25 were rinsed with mild caustic (0.2 M NaOH) to reduce the concentrations of nitrates and fission products associated with the interstitial liquid. In one campaign, the rinsed sludge was dissolved in nitric acid to produce a solution containing total metal concentrations of ca. 1.8 M with a nitric acid concentration of ca. 2.9 M. About 50% of the dry mass of the sludge was dissolved. In the other campaign, the sludge was neutralized with nitric acid to destroy the carbonates, then leached with ca. 2.6 M NaOH for ca. 6 h before rinsing with the mild caustic. The sludge was then dissolved in nitric acid to produce a solution containing total metal concentrations of ca. 0.6 M with a nitric acid concentration of ca. 1.7 M. About 80% of the sludge dissolved. The dissolved sludge solution form the first campaign began gelling immediately, and a visible gel layer was observed after 8 days. In the second campaign, the solution became hazy after ca. 8 days, indicating gel formation, but did not display separated gel layers after aging for 20 days. Batch liquid-liquid equilibrium tests of both the extraction and stripping operations were conducted. Chemical analyses of both phases were used to evaluate the process. Evaluation was based on two metrics: the fraction of TRU elements removed from the dissolved sludge and comparison of the results with predictions made with the Generic TRUEX Model (GTM). The fractions of Eu, Pu, Cm, Th, and U species removed from aqueous solution in only one extraction stage were > 95% and were close to the values predicted by the GTM. Mercury was also found to be strongly extracted, with a one-stage removal of > 92%.

  9. Silicon-based nanoenergetic composites

    SciTech Connect (OSTI)

    Asay, Blaine; Son, Steven; Mason, Aaron; Yarrington, Cole; Cho, K Y; Gesner, J; Yetter, R A

    2009-01-01

    Fundamental combustion properties of silicon-based nano-energetic composites was studied by performing equilibrium calculations, 'flame tests', and instrumented burn-tube tests. That the nominal maximum flame temperature and for many Si-oxidizer systems is about 3000 K, with exceptions. Some of these exceptions are Si-metal oxides with temperatures ranging from 2282 to 2978 K. Theoretical maximum gas production of the Si composites ranged from 350-6500 cm{sup 3}/g of reactant with NH{sub 4}ClO{sub 4} - Si producing the most gas at 6500 cm{sup 3}/g and Fe{sub 2}O{sub 3} producing the least. Of the composites tested NH{sub 4}ClO{sub 4} - Si showed the fastest burning rates with the fastest at 2.1 km/s. The Si metal oxide burning rates where on the order of 0.03-75 mls the slowest of which was nFe{sub 2}O{sub 3} - Si.

  10. Advanced composites enhance coiled tubing capabilities

    SciTech Connect (OSTI)

    Sas-Jaworsky, A.; Williams, J.G.

    1994-04-01

    From early coiled tubing (CT) use to recent operations, most concerns have been about tube damage from past service and remaining safe working life. Composite CT (CCT) is designed and constructed to exhibit unique anisotropic characteristics relative to steel or alternative isotropic materials that expand burst, collapse, tensile and compressive load performance capabilities. In 1988, Conoco Inc. began a development effort focused on using high-performance composite materials to meet numerous challenges associated with current and future oil and gas exploration and development. At that time, Conoco initiated a project to explore composite materials use for high-pressure, long-length, non-corroding tubulars with primary application as onshore water injection lines. In 1989, Conoco awarded a contract to AMAT a/s in Sandefjord, Norway to develop spoolable composite pipe for small diameter subsea lines. Concurrent with ongoing spoolable composite subsea lines, Conoco also began to explore high-performance CCT development in 1989.

  11. Liquid absorbent solutions for separating nitrogen from natural gas

    DOE Patents [OSTI]

    Friesen, Dwayne T.; Babcock, Walter C.; Edlund, David J.; Lyon, David K.; Miller, Warren K.

    2000-01-01

    Nitrogen-absorbing and -desorbing compositions, novel ligands and transition metal complexes, and methods of using the same, which are useful for the selective separation of nitrogen from other gases, especially natural gas.

  12. Method of producing a high pressure gas

    DOE Patents [OSTI]

    Bingham, Dennis N.; Klingler, Kerry M.; Zollinger, William T.

    2006-07-18

    A method of producing a high pressure gas is disclosed and which includes providing a container; supplying the container with a liquid such as water; increasing the pressure of the liquid within the container; supplying a reactant composition such as a chemical hydride to the liquid under pressure in the container and which chemically reacts with the liquid to produce a resulting high pressure gas such as hydrogen at a pressure of greater than about 100 pounds per square inch of pressure; and drawing the resulting high pressure gas from the container.

  13. Method for removing undesired particles from gas streams

    DOE Patents [OSTI]

    Durham, M.D.; Schlager, R.J.; Ebner, T.G.; Stewart, R.M.; Hyatt, D.E.; Bustard, C.J.; Sjostrom, S.

    1998-11-10

    The present invention discloses a process for removing undesired particles from a gas stream including the steps of contacting a composition containing an adhesive with the gas stream; collecting the undesired particles and adhesive on a collection surface to form an aggregate comprising the adhesive and undesired particles on the collection surface; and removing the agglomerate from the collection zone. The composition may then be atomized and injected into the gas stream. The composition may include a liquid that vaporizes in the gas stream. After the liquid vaporizes, adhesive particles are entrained in the gas stream. The process may be applied to electrostatic precipitators and filtration systems to improve undesired particle collection efficiency. 11 figs.

  14. Recovery of tritium dissolved in sodium at the steam generator of fast breeder reactor

    SciTech Connect (OSTI)

    Oya, Y.; Oda, T.; Tanaka, S.; Okuno, K.

    2008-07-15

    The tritium recovery technique in steam generators for fast breeder reactors using the double pipe concept was proposed. The experimental system for developing an effective tritium recovery technique was developed and tritium recovery experiments using Ar gas or Ar gas with 10-10000 ppm oxygen gas were performed using D{sub 2} gas instead of tritium gas. It was found that deuterium permeation through two membranes decreased by installing the double pipe concept with Ar gas. By introducing Ar gas with 10000 ppm oxygen gas, the concentration of deuterium permeation through two membranes decreased by more than 1/200, compared with the one pipe concept, indicating that most of the deuterium was scavenged by Ar gas or reacted with oxygen to form a hydroxide. However, most of the hydroxide was trapped at the surface of the membranes because of the short duration of the experiment. (authors)

  15. Fuel gas conditioning process

    DOE Patents [OSTI]

    Lokhandwala, Kaaeid A.

    2000-01-01

    A process for conditioning natural gas containing C.sub.3+ hydrocarbons and/or acid gas, so that it can be used as combustion fuel to run gas-powered equipment, including compressors, in the gas field or the gas processing plant. Compared with prior art processes, the invention creates lesser quantities of low-pressure gas per unit volume of fuel gas produced. Optionally, the process can also produce an NGL product.

  16. Method for generating a crystalline {sup 99}MoO{sub 3} product and the isolation {sup 99m}Tc compositions therefrom

    DOE Patents [OSTI]

    Bennett, R.G.; Christian, J.D.; Kirkham, R.J.; Tranter, T.J.

    1998-09-01

    An improved method is described for producing {sup 99m}Tc compositions. {sup 100}Mo metal is irradiated with photons in a particle (electron) accelerator to produce {sup 99}Mo metal which is dissolved in a solvent. A solvated {sup 99}Mo product is then dried to generate a supply of {sup 99}MoO{sub 3} crystals. The crystals are thereafter heated at a temperature which will sublimate the crystals and form a gaseous mixture containing vaporized {sup 99m}TcO{sub 3} and vaporized {sup 99m}TcO{sub 2} but will not cause the production of vaporized {sup 99}MoO{sub 3}. The mixture is then combined with an oxidizing gas to generate a gaseous stream containing vaporized {sup 99m}Tc{sub 2}O{sub 7}. Next, the gaseous stream is cooled to a temperature sufficient to convert the vaporized {sup 99m}Tc{sub 2}O{sub 7} into a condensed {sup 99m}Tc-containing product. The product has high purity levels resulting from the use of reduced temperature conditions and ultrafine crystalline {sup 99}MoO{sub 3} starting materials with segregated {sup 99m}Tc compositions therein which avoid the production of vaporized {sup 99}MoO{sub 3} contaminants. 1 fig.

  17. Method for generating a crystalline .sup.99 MoO.sub.3 product and the isolation .sup.99m Tc compositions therefrom

    DOE Patents [OSTI]

    Bennett, Ralph G.; Christian, Jerry D.; Kirkham, Robert J.; Tranter, Troy J.

    1998-01-01

    An improved method for producing .sup.99m Tc compositions. .sup.100 Mo metal is irradiated with photons in a particle (electron) accelerator to produce .sup.99 Mo metal which is dissolved in a solvent. A solvated .sup.99 Mo product is then dried to generate a supply of .sup.99 MoO.sub.3 crystals. The crystals are thereafter heated at a temperature which will sublimate the crystals and form a gaseous mixture containing vaporized .sup.99m TcO.sub.3 and vaporized .sup.99m TcO.sub.2 but will not cause the production of vaporized .sup.99 MoO.sub.3. The mixture is then combined with an oxidizing gas to generate a gaseous stream containing vaporized .sup.99m Tc.sub.2 O.sub.7. Next, the gaseous stream is cooled to a temperature sufficient to convert the vaporized .sup.99m Tc.sub.2 O.sub.7 into a condensed .sup.99m Tc-containing product. The product has high purity levels resulting from the use of reduced temperature conditions and ultrafine crystalline .sup.99 MoO.sub.3 starting materials with segregated .sup.99m Tc compositions therein which avoid the production of vaporized .sup.99 MoO.sub.3 contaminants.

  18. Method of making a modified ceramic-ceramic composite

    DOE Patents [OSTI]

    Weaver, Billy L.; McLaughlin, Jerry C.; Stinton, David P.

    1995-01-01

    The present invention provides a method of making a shaped ceramic-ceramic composite articles, such as gas-fired radiant heat burner tubes, heat exchangers, flame dispersers, and other furnace elements, having a formed-on ceramic-ceramic composite thereon.

  19. Composite of refractory material

    DOE Patents [OSTI]

    Holcombe, C.E.; Morrow, M.S.

    1994-07-19

    A composite refractory material composition comprises a boron carbide matrix and minor constituents of yttrium-boron-oxygen-carbon phases uniformly distributed throughout the boron carbide matrix.

  20. Composite of refractory material

    DOE Patents [OSTI]

    Holcombe, Cressie E. (Knoxville, TN); Morrow, Marvin S. (Kingston, TN)

    1994-01-01

    A composite refractory material composition comprises a boron carbide matrix and minor constituents of yttrium-boron-oxygen-carbon phases uniformly distributed throughout the boron carbide matrix.

  1. Natural Gas Regulation - Other Gas-Related Information Sources...

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

    Natural Gas Regulation - Other Gas-Related Information Sources Natural Gas Regulation - Other Gas-Related Information Sources The single largest source of energy information...

  2. Enhanced Charge Transport in Dissolved Polysulfide Li-S Cells with

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

    Supramolecular Redox Mediators - Joint Center for Energy Storage Research September 15, 2015, Research Highlights Enhanced Charge Transport in Dissolved Polysulfide Li-S Cells with Supramolecular Redox Mediators Schematic of nanostructured PBI 1 redox mediators in a Li-S battery, SEM image of the nanofiber morphology, reduced overpotential and 31 percent increase in S utilization at C/8, and cycling at C/4. Scientific Achievement A highly collaborative team of theorists and experimentalists

  3. Transition metal catalysis in the generation of natural gas

    SciTech Connect (OSTI)

    Mango, F.D.

    1995-12-31

    The view that natural gas is thermolytic, coming from decomposing organic debris, has remained almost unchallenged for nearly half a century. Disturbing contradictions exist, however: Oil is found at great depth, at temperatures where only gas should exist and oil and gas deposits show no evidence of the thermolytic debris indicative of oil decomposing to gas. Moreover, laboratory attempts to duplicate the composition of natural gas, which is typically between 60 and 95+ wt% methane in C{sub 1}-C{sub 4}, have produced insufficient amounts of methane (10 to 60%). It has been suggested that natural gas may be generated catalytically, promoted by the transition metals in carbonaceous sedimentary rocks. This talk will discuss experimental results that support this hypothesis. Various transition metals, as pure compounds and in source rocks, will be shown to generate a catalytic gas that is identical to natural gas. Kinetic results suggest robust catalytic activity under moderate catagenetic conditions.

  4. Shale gas is natural gas trapped inside

    Energy Savers [EERE]

    Shale gas is natural gas trapped inside formations of shale - fine grained sedimentary rocks that can be rich sources of petroleum and natural gas. Just a few years ago, much of this resource was considered uneconomical to produce. But Office of Fossil Energy (FE) research helped refine cost-effective horizontal drilling and hydraulic fracturing technologies, protective environmental practices and data development, making hundreds of trillions of cubic feet of gas technically recoverable where

  5. Gas amplified ionization detector for gas chromatography

    DOE Patents [OSTI]

    Huston, Gregg C.

    1992-01-01

    A gas-amplified ionization detector for gas chromatrography which possesses increased sensitivity and a very fast response time. Solutes eluding from a gas chromatographic column are ionized by UV photoionization of matter eluting therefrom. The detector is capable of generating easily measured voltage signals by gas amplification/multiplication of electron products resulting from the UV photoionization of at least a portion of each solute passing through the detector.

  6. Natural Gas Modernization Clearinghouse

    Broader source: Energy.gov [DOE]

    This Natural Gas Modernization Clearinghouse provides information about the implications of natural gas infrastructure modernization, including strategies and technologies that increase public safety, improve environmental performance and enhance natural gas deliverability.

  7. Future of Natural Gas

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

    of Natural Gas Bill Eisele, CEM SC Electric & Gas Co Hosted by: FEDERAL UTILITY PARTNERSHIP WORKING GROUP SEMINAR November 5-6, 2014 Cape Canaveral. Florida Agenda * Gas Facts * ...

  8. Natural Gas Weekly Update

    Gasoline and Diesel Fuel Update (EIA)

    of the Alaska gas pipeline. The opening of ANWR might reduce the gas resource risk of building an Alaska gas pipeline, as the area has an estimated 3.6 trillion cubic...

  9. Industrial Gas Turbines

    Broader source: Energy.gov [DOE]

    A gas turbine is a heat engine that uses high-temperature, high-pressure gas as the working fluid. Part of the heat supplied by the gas is converted directly into mechanical work. High-temperature,...

  10. Electrical swing adsorption gas storage and delivery system

    DOE Patents [OSTI]

    Judkins, Roddie R.; Burchell, Timothy D.

    1999-01-01

    Systems and methods for electrical swing natural gas adsorption are described. An apparatus includes a pressure vessel; an electrically conductive gas adsorptive material located within the pressure vessel; and an electric power supply electrically connected to said adsorptive material. The adsorptive material can be a carbon fiber composite molecular sieve (CFCMS). The systems and methods provide advantages in that both a high energy density and a high ratio of delivered to stored gas are provided.

  11. Electrical swing adsorption gas storage and delivery system

    DOE Patents [OSTI]

    Judkins, R.R.; Burchell, T.D.

    1999-06-15

    Systems and methods for electrical swing natural gas adsorption are described. An apparatus includes a pressure vessel; an electrically conductive gas adsorptive material located within the pressure vessel; and an electric power supply electrically connected to said adsorptive material. The adsorptive material can be a carbon fiber composite molecular sieve (CFCMS). The systems and methods provide advantages in that both a high energy density and a high ratio of delivered to stored gas are provided. 5 figs.

  12. TX, RRC District 1 Natural Gas Reserves Summary as of Dec. 31

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

    523 2,599 6,127 9,141 8,118 12,431 1979-2014 Natural Gas Nonassociated, Wet After Lease Separation 1,456 2,332 5,227 6,516 4,442 7,733 1979-2014 Natural Gas Associated-Dissolved, Wet After Lease Separation 67 267 900 2,625 3,676 4,698 1979-2014 Dry Natural Gas 1,398 2,399 5,910 8,868 7,784 11,945

  13. TX, RRC District 10 Natural Gas Reserves Summary as of Dec. 31

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

    7,594 8,484 8,373 8,007 7,744 8,354 1979-2014 Natural Gas Nonassociated, Wet After Lease Separation 6,984 7,915 7,475 7,073 6,660 7,140 1979-2014 Natural Gas Associated-Dissolved, Wet After Lease Separation 610 569 898 934 1,084 1,214 1979-2014 Dry Natural Gas 6,882 7,663 7,513 7,253 7,034 7,454

  14. TX, RRC District 2 Onshore Natural Gas Reserves Summary as of Dec. 31

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

    909 2,235 3,690 5,985 6,640 7,524 1979-2014 Natural Gas Nonassociated, Wet After Lease Separation 1,837 2,101 2,766 3,986 4,348 4,802 1979-2014 Natural Gas Associated-Dissolved, Wet After Lease Separation 72 134 924 1,999 2,292 2,722 1979-2014 Dry Natural Gas 1,800 2,090 3,423 5,462 5,910 6,559

  15. TX, RRC District 3 Onshore Natural Gas Reserves Summary as of Dec. 31

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

    2,802 2,774 2,490 2,429 2,592 2,483 1979-2014 Natural Gas Nonassociated, Wet After Lease Separation 2,326 2,308 2,091 1,965 1,795 1,760 1979-2014 Natural Gas Associated-Dissolved, Wet After Lease Separation 476 466 399 464 797 723 1979-2014 Dry Natural Gas 2,616 2,588 2,260 2,154 2,307 2,19

  16. TX, RRC District 4 Onshore Natural Gas Reserves Summary as of Dec. 31

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

    7,057 7,392 10,054 9,566 11,101 12,482 1979-2014 Natural Gas Nonassociated, Wet After Lease Separation 6,961 7,301 9,993 9,467 11,038 12,291 1979-2014 Natural Gas Associated-Dissolved, Wet After Lease Separation 96 91 61 99 63 191 1979-2014 Dry Natural Gas 6,728 7,014 9,458 8,743 9,640 11,057

  17. TX, RRC District 5 Natural Gas Reserves Summary as of Dec. 31

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

    22,623 24,694 28,187 17,640 19,531 18,155 1979-2014 Natural Gas Nonassociated, Wet After Lease Separation 22,602 24,686 28,147 17,587 19,354 17,970 1979-2014 Natural Gas Associated-Dissolved, Wet After Lease Separation 21 8 40 53 177 185 1979-2014 Dry Natural Gas 22,343 24,363 27,843 17,331 19,280 17,880

  18. TX, RRC District 6 Natural Gas Reserves Summary as of Dec. 31

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

    13,257 15,416 15,995 11,726 12,192 12,023 1979-2014 Natural Gas Nonassociated, Wet After Lease Separation 12,806 14,958 15,524 11,204 11,553 11,640 1979-2014 Natural Gas Associated-Dissolved, Wet After Lease Separation 451 458 471 522 639 383 1979-2014 Dry Natural Gas 12,795 14,886 15,480 11,340 11,655 11,516

  19. TX, RRC District 7B Natural Gas Reserves Summary as of Dec. 31

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

    2,424 2,625 3,887 3,363 3,267 2,695 1979-2014 Natural Gas Nonassociated, Wet After Lease Separation 2,322 2,504 3,754 3,183 3,040 2,418 1979-2014 Natural Gas Associated-Dissolved, Wet After Lease Separation 102 121 133 180 227 277 1979-2014 Dry Natural Gas 2,077 2,242 3,305 2,943 2,787 2,290

  20. TX, RRC District 7C Natural Gas Reserves Summary as of Dec. 31

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

    5,430 5,432 5,236 5,599 5,584 7,103 1979-2014 Natural Gas Nonassociated, Wet After Lease Separation 3,724 3,502 2,857 2,523 2,183 2,444 1979-2014 Natural Gas Associated-Dissolved, Wet After Lease Separation 1,706 1,930 2,379 3,076 3,401 4,659 1979-2014 Dry Natural Gas 4,827 4,787 4,475 4,890 4,800 6,422

  1. TX, RRC District 8 Natural Gas Reserves Summary as of Dec. 31

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

    7,440 8,105 8,088 8,963 9,715 11,575 1979-2014 Natural Gas Nonassociated, Wet After Lease Separation 3,950 3,777 3,006 2,309 2,315 2,480 1979-2014 Natural Gas Associated-Dissolved, Wet After Lease Separation 3,490 4,328 5,082 6,654 7,400 9,095 1979-2014 Dry Natural Gas 6,672 7,206 7,039 7,738 8,629 9,742

  2. TX, RRC District 8A Natural Gas Reserves Summary as of Dec. 31

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

    1,289 1,228 1,289 1,280 1,338 1,328 1979-2014 Natural Gas Nonassociated, Wet After Lease Separation 43 58 31 20 23 24 1979-2014 Natural Gas Associated-Dissolved, Wet After Lease Separation 1,246 1,170 1,258 1,260 1,315 1,304 1979-2014 Dry Natural Gas 1,218 1,164 1,226 1,214 1,269 1,257

  3. TX, RRC District 9 Natural Gas Reserves Summary as of Dec. 31

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

    11,522 13,172 10,920 9,682 10,040 9,760 1979-2014 Natural Gas Nonassociated, Wet After Lease Separation 11,100 12,587 9,963 8,521 8,947 8,283 1979-2014 Natural Gas Associated-Dissolved, Wet After Lease Separation 422 585 957 1,161 1,093 1,477 1979-2014 Dry Natural Gas 10,904 12,464 10,115 8,894 9,195 8,791

  4. Gas bubble disease in smallmouth bass and northern squawfish from the Snake and Columbia Rivers

    SciTech Connect (OSTI)

    Montgomery, J.C.; Becker, C.D.

    1980-11-01

    In 1975 and 1976, 179 smallmouth bass (Micropterus dolomieui) and 85 northern squawfish (Ptychocheilus oregonensis) were collected by angling from the lower Snake and mid-Columbia rivers, southeastern Washington. All fish were examined externally for gas bubble syndrome. Emboli were found beneath membranes of the opercula, body, and fins of 72% of the smallmouth bass and 84% of the northern squawfish. Hemorrhage was also noted on the caudal, anal, and pectoral fins of several smallmouth bass. Presence of gas bubble syndrome corresponded to the spring runoff when total dissolved gas supersaturations in river water exceeded 115%.

  5. CA, San Joaquin Basin Onshore Natural Gas Reserves Summary as of Dec. 31

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

    2,609 2,447 2,685 1,650 1,574 1,823 1979-2014 Natural Gas Nonassociated, Wet After Lease Separation 607 498 506 269 245 265 1979-2014 Natural Gas Associated-Dissolved, Wet After Lease Separation 2,002 1,949 2,179 1,381 1,329 1,558 1979-2014 Dry Natural Gas 2,469 2,321 2,590 1,550 1,460 1,69

  6. Federal Offshore U.S. Natural Gas Reserves Summary as of Dec. 31

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

    2,856 12,120 10,820 9,853 8,567 8,968 1990-2014 Natural Gas Nonassociated, Wet After Lease Separation 7,633 6,916 5,374 3,989 3,037 3,634 1990-2014 Natural Gas Associated-Dissolved, Wet After Lease Separation 5,223 5,204 5,446 5,864 5,530 5,334 1990-2014 Dry Natural Gas 12,552 11,765 10,420 9,392 8,193 8,527 1990

  7. Carbon nanotube composite materials

    DOE Patents [OSTI]

    O'Bryan, Gregory; Skinner, Jack L; Vance, Andrew; Yang, Elaine Lai; Zifer, Thomas

    2015-03-24

    A material consisting essentially of a vinyl thermoplastic polymer, un-functionalized carbon nanotubes and hydroxylated carbon nanotubes dissolved in a solvent. Un-functionalized carbon nanotube concentrations up to 30 wt % and hydroxylated carbon nanotube concentrations up to 40 wt % can be used with even small concentrations of each (less than 2 wt %) useful in producing enhanced conductivity properties of formed thin films.

  8. Sprayable titanium composition

    DOE Patents [OSTI]

    Tracy, Chester E.; Kern, Werner; Vibronek, Robert D.

    1980-01-01

    The addition of 2-ethyl-1-hexanol to an organometallic titanium compound dissolved in a diluent and optionally containing a lower aliphatic alcohol spreading modifier, produces a solution that can be sprayed onto a substrate and cured to form an antireflection titanium oxide coating having a refractive index of from about 2.0 to 2.2.

  9. The effect of fuel composition on flame dynamics

    SciTech Connect (OSTI)

    Hendricks, Adam G.; Vandsburger, Uri

    2007-10-15

    As fuel sources diversify, the gas turbine industry is under increasing pressure to develop fuel-flexible plants, able to use fuels with a variety of compositions from a large range of sources. However, the dynamic characteristics vary considerably with composition, in many cases altering the thermoacoustic stability of the combustor. We compare the flame dynamics, or the response in heat release rate of the flame to acoustic perturbations, of the three major constituents of natural gas: methane, ethane, and propane. The heat release rate is quantified using OH* chemiluminescence and product gas temperature. Gas temperature is measured by tracking the absorption of two high-temperature water lines, via Tunable Diode Laser Absorption Spectroscopy. The flame dynamics of the three fuels differ significantly. The changes in flame dynamics due to variations in fuel composition have the potential to have a large effect on the thermoacoustic stability of the combustor. (author)

  10. Method for cracking hydrocarbon compositions using a submerged reactive plasma system

    DOE Patents [OSTI]

    Kong, Peter C. (Idaho Falls, ID)

    1997-01-01

    A method for cracking a liquid hydrocarbon composition (e.g. crude oil) to produce a cracked hydrocarbon product. A liquid hydrocarbon composition is initially provided. An electrical arc is generated directly within the hydrocarbon composition so that the arc is entirely submerged in the composition. Arc generation is preferably accomplished using a primary and secondary electrode each having a first end submerged in the composition. The first ends of the electrodes are separated from each other to form a gap therebetween. An electrical potential is then applied to the electrodes to generate the arc within the gap. A reactive gas is thereafter delivered to the arc which forms a bubble around the arc. Gas delivery may be accomplished by providing a passageway through each electrode and delivering the gas through the passageways. The arc and gas cooperate to produce a plasma which efficiently cracks the hydrocarbon composition.

  11. Method for cracking hydrocarbon compositions using a submerged reactive plasma system

    DOE Patents [OSTI]

    Kong, P.C.

    1997-05-06

    A method is described for cracking a liquid hydrocarbon composition (e.g. crude oil) to produce a cracked hydrocarbon product. A liquid hydrocarbon composition is initially provided. An electrical arc is generated directly within the hydrocarbon composition so that the arc is entirely submerged in the composition. Arc generation is preferably accomplished using a primary and secondary electrode each having a first end submerged in the composition. The first ends of the electrodes are separated from each other to form a gap there between. An electrical potential is then applied to the electrodes to generate the arc within the gap. A reactive gas is thereafter delivered to the arc which forms a bubble around the arc. Gas delivery may be accomplished by providing a passageway through each electrode and delivering the gas through the passageways. The arc and gas cooperate to produce a plasma which efficiently cracks the hydrocarbon composition. 6 figs.

  12. Enhanced catalyst for converting synthesis gas to liquid motor fuels

    DOE Patents [OSTI]

    Coughlin, Peter K.

    1986-01-01

    The conversion of synthesis gas to liquid molar fuels by means of a cobalt Fischer-Tropsch catalyst composition is enhanced by the addition of molybdenum, tungsten or a combination thereof as an additional component of said composition. The presence of the additive component increases the olefinic content of the hydrocarbon products produced. The catalyst composition can advantageously include a support component, such as a molecular sieve, co-catalyst/support component or a combination of such support components.

  13. Natural Gas Weekly Update

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

    cooling demand for natural gas. Meanwhile, it became increasingly clear that Hurricane Frances likely would not pose a significant threat to natural gas production in the Gulf of...

  14. Oil and Gas

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

    Oil and Gas Oil and Gas R&D focus on the use of conventional and unconventional fossil fuels, including associated environmental challenges Contact thumbnail of Business ...

  15. Gas scrubbing liquids

    DOE Patents [OSTI]

    Lackey, Walter J.; Lowrie, Robert S.; Sease, John D.

    1981-01-01

    Fully chlorinated and/or fluorinated hydrocarbons are used as gas scrubbing liquids for preventing noxious gas emissions to the atmosphere.

  16. Natural Gas Weekly Update

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

    Market Trends: MMS Announces New Incentives for Gulf Gas Production: The Minerals Management Service (MMS) unveiled proposed new incentives to increase deep gas production...

  17. Natural Gas Weekly Update

    Gasoline and Diesel Fuel Update (EIA)

    of natural gas vehicles. The Department of Energys Office of Energy Efficiency and Renewable Energy reports that there were 841 compressed natural gas (CNG) fuel stations and 41...

  18. Natural Gas Citygate Price

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

    From Gas Wells Gross Withdrawals From Oil Wells Gross Withdrawals From Shale Gas ... Gaseous Equivalent Dry Production Imports By Pipeline LNG Imports Exports Exports ...

  19. Natural Gas Industrial Price

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

    From Gas Wells Gross Withdrawals From Oil Wells Gross Withdrawals From Shale Gas ... Gaseous Equivalent Dry Production Imports By Pipeline LNG Imports Exports Exports ...

  20. Natural Gas Weekly Update

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

    2008 Next Release: November 6, 2008 Overview Prices Storage Other Market Trends Natural Gas Transportation Update Overview (For the week ending Wednesday, October 29) Natural gas...