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Methanation in catalyst-sprayed tube wall reactors: a review

Description: The design and operation of catalyst-sprayed tube wall reactors for methanation are discussed. Reactor tubes were either coated on the inner surface or on the outer surface with a Raney nickel catalyst. A liquid coolant, which was opposite the catalyst-reactant gas-side, removed the heat of methanation. Catalyst performance, reactor operating conditions, spent catalyst analyses, and other results are presented for five PDU tests.
Date: September 1, 1980
Creator: Pennline, H. W.; Schehl, R. R.; Haynes, W. P. & Forney, A. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Thin film cadmium telluride solar cells. Final technical report, July 1, 1979-August 31, 1980

Description: Efforts during this program have been directed to the construction of apparatus for the chemical vapor deposition of cadmium telluride films, the selection and preparation of substrates, the deposition and characterization of cadmium telluride films, and the fabrication and characterization of solar cells. Cadmium telluride films have been deposited on a number of substrates by the direct combination of cadmium and tellurium on the substrate surface at 500/sup 0/C or higher at rates of up to 0.… more
Date: August 1, 1980
Creator: Chu, T. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Summaries of FY 1979 research in the chemical sciences

Description: The purpose of this report is to help those interested in research supported by the Department of Energy's Division of Chemical Sciences, which is one of six Divisions of the Office of Basic Energy Sciences in the Office of Energy Research. Chemists, physicists, chemical engineers and others who are considering the possibility of proposing research for support by this Division wll find the booklet useful for gauging the scope of the program in basic research, and the relationship of their inter… more
Date: May 1, 1980
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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/sup 18/F-4-fluoroantipyrine

Description: The novel radioactive compound /sup 18/F-4-fluoroantipyrine having high specific activity which can be used in nuclear medicine in diagnostic applications, prepared by the direct fluorination of antipyrine in acetic acid with radioactive fluorine at room temperature and purifying said radioactive compound by means of gel chromatography with ethyl acetate as eluent is disclosed. The non-radioactive 4-fluoroantipyrine can also be prepared by the direct fluorination of antipyrine in acetic acid wi… more
Date: January 1, 1980
Creator: Shiue, Chyng-Ysnn & Wolf, Alfred P.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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Coal liquefaction catalyst development. Quarterly progress report No. 3, October 1-December 31, 1979

Description: Catalytic baseline runs continued with HDS-1442A in order to improve our baseline statistics as well as to monitor batch reactor performance. Testing of several new catalyst formulations was completed. No promising candidates for testing in the continuous aging unit were identified. The new SRC-II slurry oil was evaluated as a hydrogen donor liquefaction solvent. Our data indicates that the SRC-II heavy distillate oil is not as effective a hydrogen donor solvent as the hydrogenated anthracene o… more
Date: January 1, 1980
Creator: Kim, D. K.; Pellet, R. J. & Mahoney, J. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Preparation of thorium-uranium gel spheres

Description: Ceramic oxide spheres with diameters of 15 to 1500 ..mu..m are being evaluated for fabrication of power reactor fuel rods. (Th,U)O/sub 2/ spheres can be prepared by internal or external chemical gelation of nitrate solutions or oxide sols. Two established external gelation techniques were tested but proved to be unsatisfactory for the intended application. Established internal gelation techniques for UO/sub 2/ spheres were applied with minor modifications to make 75% ThO/sub 2/-25% UO/sub 2/ sp… more
Date: January 1, 1980
Creator: Spence, R.D. & Haas, P.A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Coal-liquefaction-catalyst development. Quarterly progress report No. 4

Description: The catalyst prepared by dispersing cobalt boride and moly boride in an alumina matrix continues to exhibit acceptable liquefaction and desulfurization activity and superior denitrogenation activity. If an extrudate can be prepared from these materials having the correct pore structure, pilot plant testing should be conducted to evaluate activity maintenance. The cobalt sodium alumina/moly alumina mixed system has been optimized to give superior liquefaction and denitrogenation activity. A larg… more
Date: October 1, 1980
Creator: Helstrom, J. J.; Pellet, R. J. & Mahoney, J. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Metal loaded poly-p-xylene

Description: Inertial confinement fusion target designs frequently require hydrocarbon polymer coatings loaded with varying amounts of high atomic number materials, typically metals. In addition to the usual requirements on thickness uniformity and surface finish, the metal loading must be dispersed in the polymer matrix on a submicron scale. The common means of obtaining such coatings for laser fusion targets is by glow discharge polymerization of an appropriate organometallic monomer starting material. Pa… more
Date: January 1, 1980
Creator: Bieg, K.W.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Oxygen electrodes for energy conversion and storage. Annual report, 1 October 1977-30 September 1978

Description: Research on the development of high performance, long life O/sub 2/ cathodes for both alkaline and acid electrolytes for a spectrum of applications including industrial electrolysis, fuel cells, and metal-air batteries is described. Oxygen electrocatalysts studied include platinum, silver, underpotential deposited layers and alloy metal layers on noble metal substrates, intercalated graphite, transition metal macrocyclic complexes, and transition metal oxides. Research on gas fed electrodes is … more
Date: January 15, 1980
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Phase 2 of the array automated assembly task for the Low Cost Silicon Solar Array Project. Seventh quarterly report

Description: Work during this quarter emphasized the evaluation of the Motorola metallization process, the major experimental task of the program. The Motorola process is a lengthy one, designed to assure reproducible metallization of solar cells, but it was found difficult to reproduce relative to a single step electroless nickel plating. It is also concluded, on the basis of experiments performed to date, that the product of the Motorola process is virtually identical to the product of a simple electroles… more
Date: July 1, 1980
Creator: Petersen, R. C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Investigation of Sulfur-Tolerant Catalysts for Selective Synthesis of Hydrocarbon Liquids From Coal-Derived Gases. Quarterly Technical Progress Report, December 19, 1979-March 18, 1980

Description: A 15% Fe/SiO/sub 2/ catalyst was prepared. H/sub 2/ and CO chemisorption uptakes were measured for the catalysts prepared to date. Very small uptakes were noted for the silica supported iron catalysts. Reactor activity tests in synthesis gas were conducted for 3% Fe/SiO/sub 2/, 15% Fe/SiO/sub 2/ and 10% Co-B/Al/sub 2/O/sub 3/ catalysts. These preliminary tests aided the final development of a laboratory microreactor system. Criteria for avoiding heat and mass transfer limitations on intrinsic r… more
Date: April 10, 1980
Creator: Bartholomew, C. H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Mechanistic studies related to the metal catalyzed reduction of carbon monoxide to hydrocarbons. Progress report, April 1, 1979-March 31, 1980

Description: The stoichiometric reactions of metal complexes which parallel probable steps in the metal catalyzed reduction of CO are being investigated. It is hoped that the study of these model reactions will lead to an understanding of the structural factors influencing these individual reaction steps. The information obtained should be useful in the design and discovery of homogeneous catalysts for the reduction of CO to hydrocarbons. We have studied metal formyl complexes which may be involved in the i… more
Date: April 1, 1980
Creator: Casey, C. P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Selenium and tellurium as carbon substitutes

Description: This review has summarized structure-activity studies with /sup 75/Se- and /sup 123m/Te-labeled radiopharmaceuticals in which the selenium or tellurium heteroatom has been inserted between carbon-carbon bonds. The agents that have been investigated in most detail include steroids for adrenal imaging and long-chain fatty acids, and a variety of other unique agents have also been studied. Because of the great versatility of the organic chemistry of selenium and tellurium, there is continuing inte… more
Date: January 1, 1980
Creator: Knapp, F. F. Jr.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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I. The synthesis and characterization of annulated uranocenes. II. The variable temperature /sup 1/H NMR of uranocenes

Description: A general synthetic route to alkyl annulated cyclooctatetraene dianions and the corresponding annulated uranocenes has been developed. Dideprotonation of bicyclooctatrienes, resulting from reaction of cyclooctatetraene dianion with l,n-dialkylbromides or methanesulfonates, affords alkyl annulated cyclooctatetraene dianions in moderate yields. Dicyclopenteno-, bisdimethylcyclopenteno- and dicyclohexenouranocene were prepared from the corresponding cyclooctatetraene dianions and UCl/sub 4/. The s… more
Date: January 1, 1980
Creator: Luke, W.D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Field demonstration of the conventional steam-drive process with ancillary materials. Quarterly report No. 1, October 1, 1979-December 31, 1979

Description: The objective of this contract is to field test the potential of chemical blocking foams to increase the efficiency of steam drive operations, particularly in shallow, heavy oil reservoirs. The initial work under the contract has consisted of laboratory work to test foaming materials. The state-of-the art was surveyed through a review of current work and through meetings held with university and industry laboratories. Discussed was equipment, data, and agents in the generation and evaluation of… more
Date: January 10, 1980
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Development of Alcohol-Based Synthetic Transportation Fuels From Coal-Derived Synthesis Gases. First Quarterly Progress Report, September 14-December 31, 1979

Description: Chem Systems is carrying out an experimental program for the conversion of coal-derived synthesis gases to a mixture of C/sub 1/-C/sub 4/ alcohols. The objectives of this contract are to: (1) develop a catalyst and reactor system for producing a mixture of C/sub 1/-C/sub 4/ alcohols, which we call Alkanol fuel, to be used as a synthetic transportation fuel and (2) assess the technical and economic feasibility of scaling the process concept to a commercial-scale application. Some of the accompli… more
Date: April 8, 1980
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Biodistribution of Ru-97-Labeled DTPA, DMSA and Transferrin. [Diagnostic Potential]

Description: Ruthenium-97 is being produced at the Brookhaven Linac Isotope Producer (BLIP). The favorable physical properties of Ru-97 and chemical reactivity of ruthenium offer a potential for using this isotope to label compounds useful for delayed scanning. Diethylenetriamine pentaacetic acid (DTPA), 2,3-Dimercaptosuccinic acid (DMSA), and Transferrin (TF) were labeled with Ru-97-chloride. Ru-97-DTPA and In-111-DTPA, injected intravenously, showed similar organ distribution, kinetics, and more than 80% … more
Date: January 1, 1980
Creator: Som, P.; Oster, Z. H.; Fairchild, R. G.; Atkins, H. L.; Brill, A. B.; Gil, M. C. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Catalytic conversion of oxygenated compounds to low molecular weight olefins. Progress report, March 1, 1980-August 31, 1980

Description: A possible route for producing low molecular weight olefins is to convert synthesis gas to methanol followed by conversion of methanol to olefins in a one-step process. During this report period the reaction apparatus suitable for reaction pressure of 500 to 1000 psig was constructed. A preliminary trial run was performed for the reaction of synthesis gas over an intimate mixture of methanol synthesis catalyst and Zeolon-500 (mixture of chabasite and erionite). The reaction temperature, pressur… more
Date: September 30, 1980
Creator: Anthony, Rayford G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Development of Alcohol-Based Synthetic Transportation Fuels From Coal-Derived Synthesis Gases. Third Quarterly Progress Report, April 1-June 30, 1980

Description: Fourteen catalysts were prepared by either evaporation of metal nitrate-citric acid solutions or by impregnation of inert supports with metal nitrate-citric acid solutions. Fourteen catalysts were tested in either the Berty gradientless reactor or the plug-flow reactor. These catalysts have been characterized intto the following five groups: Group I - catalysts containing Cu, Zn, Co, Cr and alkali; Group II - catalysts of Group I without Zn or Co or Cr; Group III - modified methanol synthesis c… more
Date: December 3, 1980
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Preparation of gallium-68 radiopharmaceuticals for positron tomography. Progress report, November 1, 1977-October 31, 1980

Description: Although the germanium-68 ..-->.. gallium-68 generator is probably the only source of positron-emitting radionuclides that could enable the widespread application of positron tomography, the commercially available /sup 68/Ga//sup 68/Ge generator system suffers from several major disadvantages. The most important of these is that the generator is eluted with EDTA, which forms a very strong chelate with gallium. In order to produce radiopharmaceuticals other than /sup 68/Ga-EDTA, it is first nece… more
Date: June 1, 1980
Creator: Welch, M.J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Nuclear medicine technology. Progress report, quarter ending March 31, 1980

Description: The successful detection of experimentally produced myocardial infarctions in rats and dogs using /sup 123m/Te-9-telluraheptadecanoic acid (9-(/sup 123m/Te)-THDA) is described. Preferential localization of radioactivity in normal myocardial tissue of rats that had experimentally produced infarctions was also demonstrated by tissue distribution studies following injection of 9-(/sup 123m/Te)-THDA. The effects of chain length on the myocardial uptake of /sup 75/Se-labeled long-chain fatty acids w… more
Date: October 1, 1980
Creator: Knapp, F. F. Jr.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Survey of electrochemical production of inorganic compounds. Final report

Description: The electrochemical generation of inorganic compounds, excluding chlorine/caustic, has been critically reviewed. About 60 x 10/sup 12/ Btu/y fossil fuel equivalent will be used in the year 2000 for the electrosynthesis of inorganic compounds. Significant energy savings in chlorate production can result from the development of suitable electrocatalysts for lowering the cathodic overpotential. Perchlorates, electrolytic hypochlorite, electrolytic manganese dioxide, fluorine and other miscellaneou… more
Date: October 1, 1980
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Determination of pseudogap state density and carrier mobility in rf sputtered amorphous silicon. Quarterly technical progress report, October 1-December 31, 1979

Description: Analysis by Secondary Ion Mass spectrometry has shown levels of about 1000 ppM of 0 and other chemical species in our a-Si:H, which is about the same as is found in samples from other laboratories where such measurements have been carried out. There is also an increase in the level of contaminant near the substrate-film interface which is judged to be the likely cause of our hitherto low field effect response. Methods of preparation are being changed in an attempt to eliminate the contaminant. … more
Date: January 1, 1980
Creator: Paul, W
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Development of new catalysts for coal liquids refining. Fourth quarterly report, October 1-December 31, 1979

Description: Base-line catalyst testing conditions for hydrotreating SRC-II fuel Oil Blend have been determined: temperature, 750/sup 0/F; pressure, 1000 psig; LHSV, 1 ml/ml-hr; and H/sub 2/ flow rate, 5000 SCF/bbl. At these conditions the average values for HDN and HDS after 24 hours on stream are approx. = 85% and 90% respectively with the best series of Ni-Mo on ..gamma..-alumina. Nickel and cobalt tungstate are significantly poorer catalysts. They afford 60-40% HDN and 85-75% HDS respectively. Nickel mo… more
Date: January 1, 1980
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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