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Proof of concept testing of an integrated dry injection system for SO sub x /NO sub x control

Description: The objectives of the subscale test program were designed to provide sorbent and additive selection guidance, and, in so doing, supply answers to the questions posed in the preceding section. The objectives are: Identify the best commercial hydrate sorbent and the best enhanced hydrate sorbent from a list of nine types, based upon S0{sub 2} removal at Ca/S=2. Determine the relative effectiveness of sodium sesquicarbonate versus sodium bicarbonate for S0{sub 2} and NO{sub x} control over the tem… more
Date: January 1, 1989
Creator: Helfritch, D.J.; Bortz, S.J. (Research-Cottrell, Inc., Somerville, NJ (United States). Environmental Services and Technologies Div.) & Beittel, R. (Riley Stoker Corp., Worcester, MA (United States))
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Experiments with a lime slurry in a stirred tank for the fixation of carbon-14-contaminated CO/sub 2/ from simulated HTGR fuel reprocessing off-gas

Description: The fixation of CO/sub 2/ with a lime slurry in a stirred tank reactor appears to be feasible. The rate of reaction is fast, and virtually complete removal of CO/sub 2/ can be attained. At a gas residence time of <1 min, the decontamination factor (DF) is >100 in a single stage reactor for CO/sub 2/ concentrations ranging from 5 to 100%. It has been determined that two-stage contacting sequences which result in a cumulative DF > 10/sup 4/ are feasible. The reaction rate is constant up … more
Date: March 1, 1978
Creator: Holladay, D. W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Sampling and characterization of sodium-water reaction products

Description: Sodium-water reaction products (SWRP) which had accumulated in the bottom of the reaction products tank (RPT) of the Large Leak Test Rig (LLTR) were sampled and characterized. Analysis showed that the SWRP consisted of NaOH, Na/sub 2/O, NaH, and Na, as expected, in varying proportions. The unreacted sodium in the samples examined ranged from 32 to 60% by weight. The SWRP reacts (dissolves) rapidly and completely with ethanol, and somewhat less rapidly and completely with Dowanol PM. A magnetic,… more
Date: October 13, 1977
Creator: Eichelberger, R.L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Research on alkaline zinc secondary electrodes with emphasis on model testing. Final report, June 15, 1976-August 31, 1979

Description: The goal of this work was to obtain information useful in the improvement of life and performance of alkaline secondary cells utilizing porous zinc electrodes. Toward this end, experiments designed to test predictions of the most sophisticated mathematical models of the porous zinc electrode were performed. This approach is based on the conviction that the surest way to realize a significantly longer-lived zinc electrode is through better understanding of the electrode gained through the intera… more
Date: January 1, 1979
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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(Preoxidation cleaning optimization for crystalline silicon)

Description: A series of controlled experiments has been performed in Sandia's Photovoltaic Device Fabrication Laboratory to evaluate the effect of various chemical surface treatments on the recombination lifetime of crystalline silicon wafers subjected to a high-temperature dry oxidation. From this series of experiments we have deduced a relatively simple yet effective cleaning sequence. We have also evaluated the effect of different chemical damage-removal etches for improving the recombination lifetime a… more
Date: January 1, 1991
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Proof of concept testing of an integrated dry injection system for SO sub x /NO sub x control

Description: The objective of the subscale test program were designed to provide sorbent and additive selection guidance, and, in so doing, supply answers to the questions posed in the preceding section. The objectives are: Identify the best commercial hydrate sorbent and the best enhanced hydrate sorbent from a list of nine types, based upon S0{sub 2} removal at Ca/S=2. Determine the relative effectiveness of sodium sesquicarbonate versus sodium bicarbonate for S0{sub 2} and NO{sub x} control over the temp… more
Date: January 1, 1990
Creator: Helfritch, D.J.; Bortz, S.J. (Research-Cottrell, Inc., Somerville, NJ (United States). Environmental Services and Technologies Div.) & Beittel, R. (Riley Stoker Corp., Worcester, MA (United States))
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

DISSOLUTION OF BeO-AND Al$sub 2$O$sub 3$-BASE REACTOR FUEL ELEMENTS. PART I

Description: Aqueous methods for recovering uranium from BeO- and Al/sub 2/O/sub 3/- base gas-cooled-reactor fuel elements are being evaluated. Two methods for processing Hastelloy-X--clad pelletized BeO-base fuels containing 60 to 70% UO/ sub 2/, such as the GCRE and MGCR, seem feasible. One method involves mechanical stripping or chopping of the cladding followed by leaching of the uranium from the fuel pellets with boiling 6-l3M HNO/sub 3/. In the other method the cladding and UO/sub 2/ are dissolved in … more
Date: February 14, 1962
Creator: Warren, K S; Ferris, L M & Kibbey, A H
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Project for laboratory study for removal of organic sulfur from coal. Quarterly technical progress report

Description: The Gravimelt Process was extended to the desulfurization of ordinary mine-cleaned Kentucky No. 11 coal obtained from the Tennessee Valley Authority. Eight process runs were made resulting in reduction of the sulfur content from a starting 2.7 lbs S/10/sup 6/ Btu to a mean of 0.475 lbs S/10/sup 6/ Btu, (0.95 lbs SO/sub 2//10/sup 6/ Btu) for an average 82% sulfur reduction. The effect of utilization of molten sodium hydroxide alone vs molten mixed potassium and sodium hydroxide was investigated … more
Date: October 15, 1980
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Cycle-life improvement of Zn/NiOOH cells by the addition of Ca(OH) sub 2 to the zinc electrode

Description: The addition of Ca(OH){sub 2} to the zinc electrode of Zn/NiOOH cells was investigated in order to determine its effect on reducing the rate of Zinc redistribution. Cells containing 0, 10, 25, and 40 mol% Ca(OH){sub 2} in the zinc electrode were constructed and tested. Ca(OH){sub 2} was found to form a calcium zincate complex with the zincate-supersaturated KOH solution created during the discharge half-cycle. As Ca(OH){sub 2} is insoluble in the electrolyte, the formation of this complex (cont… more
Date: August 1, 1989
Creator: Jain, R.; McLarnon, F. R. & Cairns, E. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Advances in materials science, Metals and Ceramics Division. Triannual progress report, October 1979-January 1980

Description: Progress is summarized concerning magnetic fusion energy materials, laser fusion energy, aluminium-air battery and vehicle, geothermal research, oil-shale research, nuclear waste management, office of basic energy sciences research, and materials research notes. (FS)
Date: March 31, 1980
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Biological conversion of organic refuse to methane. Final report, July 1, 1973--November 30, 1976

Description: In order to predict accurately the cost of producing methane from urban refuse, studies were initiated on the dewatering of the fermentor residue and the disposal of the residue from the system. Results of the research are reported under the following subject headings: fermentation system; rheological properties of reactor slurry; filterability of reactor effluent; residue dewatering--vacuum filtration; settleability of solids in the reactor effluent; settleability of sludges from centrate trea… more
Date: November 1, 1976
Creator: Brown, J W; Pfeffer, J T & Liebman, J C
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Determination of surface oxide compositions on Alloy 600 using Rutherford backscattering

Description: The surface composition of oxides formed on Alloy 600 under conditions similar to those in the primary side of PWR heat exchangers has been studied as a function of potential using Rutherford backscattering and proton inelastic scattering. Electropolished samples of Alloy 600 were exposed at several potentials to a solution of 0.18M H/sub 3/BO/sub 3/(2000 ppM B) with 0.28M LiOH (1.4 ppM Li) at 300/sup 0/C for 450 hours. The potentials relative to an internal hydrogen electrode ranged from -.09 … more
Date: January 1, 1984
Creator: Hanson, A. L.; Isaacs, H. S. & Kraner, H. W.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Analysis of Lime-Slurry Stirred Tank Carbonation Reactor

Description: Gas residence time distributions were determined for a stirred tank carbonation reactor. Empirical correlations for the first and second moments of the residence time distribution (RTD) curves as functions of flow rates and impeller speeds were obtained. Decontamination factors for /sup 85/Kr were measured.
Date: September 23, 1977
Creator: McAleese, J. P.; Belt, B. A.; Datesh, J. R. & Shaeffer, M. C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Surface and bulk vibrations in ion-implanted amorphous silica

Description: Infrared reflection spectroscopy (IRS) has been used to identify the Si-O vibrational mode and confirm previous assignments of Si-OH, and Si-OD vibrational modes in porous amorphous silica implanted with heavy ions and with H/sup +/ and D/sup +/ ions. The Si-O stretching mode (approx. 1015 cm/sup -1/) is produced by the damage cascade and is seen in all implanted bulk silicas as well as in porous silica. Implantation of porous silica with H/sup +/ and D/sup +/ ions produces bands at approx. 985… more
Date: January 1, 1980
Creator: Arnold, G. W.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

GC/MS characterization of condensable tars in the output stream of a stirred fixed-bed gasifier

Description: The output stream of the stirred fixed-bed gasifier at the Morgantown Energy Technology Center was sampled for total entrained material. A major portion of the entrained material, in addition to particles, is condensable tar that is subsequently removed from the process gas by wet scrubbing. Characterization of the entrained materials, specifically the tar, is important to establish contaminant levels and to evaluate performance of downstream cleanup units. Samples of tars were collected from t… more
Date: December 1, 1981
Creator: Lamey, S. C.; McCaskill, K. B. & Smith, R. R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Galvanostatic polarization of zinc microanodes in KOH electrolytes

Description: This report includes a critical review of the current literature on the anodic passivation of zinc electrodes, a description of supplementary experimental studies to extend the data to a low-current-density region and to provide a basis for evaluating conflicting results of published work, and a new interpretation of the anodic passivation mechanism. This work provides a starting point for understanding passivation phenomena in battery electrodes. The utilization of a zinc electrode in alkaline… more
Date: May 1, 1980
Creator: Liu, M. B.; Cook, G. M. & Yao, N. P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Removal of silica from spent geothermal brine

Description: Preliminary survey experiments conducted at the LLL Salton Sea Geothermal Test Site in April and May, 1977 are reported. The addition of caustic to raise the brine pH to approximately 6 precipitated silica and other materials. The addition of flocculating agents, such as ferric hydroxide, aids settling and filtration. Small-scale pilot plant studies are recommended.
Date: December 1, 1977
Creator: Ryon, R.W. & Hill, J.H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Laboratory-scale evaluations of alternative plutonium precipitation methods

Description: Plutonium(III), (IV), and (VI) carbonate; plutonium(III) fluoride; plutonium(III) and (IV) oxalate; and plutonium(IV) and (VI) hydroxide precipitation methods were evaluated for conversion of plutonium nitrate anion-exchange eluate to a solid, and compared with the current plutonium peroxide precipitation method used at Rocky Flats. Plutonium(III) and (IV) oxalate, plutonium(III) fluoride, and plutonium(IV) hydroxide precipitations were the most effective of the alternative conversion methods t… more
Date: February 8, 1984
Creator: Martella, L. L.; Saba, M. T. & Campbell, G. K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Hot corrosivity of coal gasification products on gas turbine alloys. Summary report, 15 April 1978-15 November 1979

Description: The results of this investigation have produced mechanisms for the hot corrosion of a number of pure metals and alloys in the types of atmospheres likely to be obtained in turbines using coal conversion products as fuel. The results of these mechanistic studies suggest the following conclusions regarding application of alloys in these situations: (1) Simple Cr/sub 2/O/sub 3/-forming alloys of both Co and Ni have good hot corrosion resistance to most of the deposits likely to form in turbines bu… more
Date: January 1, 1979
Creator: Meier, G.H. & Gulbransen, E.A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Processing of oil shale in molten hydroxides

Description: Scoping experiments to determine bounds on a possible process for producing fuel hydrocarbons from oil shale by pyrolysis in a bath of molten Na, Li, and K hydroxides have been done. The process can be carried out at relatively low temperatures, 200 to 225/sup 0/C, requires the presence of water and oxygen, and gives hydrocarbon and organic acid products, apparently free of sulfur and nitrogen. A mechanism of oxidation of kerogen at heteroatoms and other functional groups, followed by decarboxy… more
Date: January 1, 1984
Creator: Hues, A.D.; Rofer-DePoorter, C.K. & Rogers, R.N.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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