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Synergistic capture mechanisms for alkali and sulfur species from combustion
The research described here is directed towards an investigation of mechanisms governing the capture of alkali metals and SO{sub 2} by injection of clay based sorbents into a combustor environment. While the species of interest are products of coal combustion, the earlier parts of these investigations will use a gas flame doped with relevant levels of Potassium, Sodium and Sulfur dioxide typical of a coal flame environment. This ensures that the particles so sampled from the combustor are from the injected sorbents and not mixed with coal ash. The approach here is to translate results from bench scale studies into evaluating governing mechanisms at a practical combustor level scale in which there exist both temperature variations and flow mixing characteristics. The research will thus consist of two tasks: (1) Detailed experimental studies for Alkali metals K, Na and toxic metal Cr in the presence of SO{sub 2} in which effect of parameters such as Speciation, Temperature profiles, Injection temperatures, residence time, bulk concentration levels, sorbent particle size and sorbent injection rates will be evaluated. (2) Theoretical modeling: Both equilibrium thermodynamics and reaction kinetics models will be used to correlate the experimental data. For these experiments the Sorbent type is Kaolinite …
Date:
January 10, 1992
Creator:
Peterson, T.W.; Shadman, F.; Wendt, J.O.L. & Mwabe, P.O.
Object Type:
Report
System:
The UNT Digital Library
Venezuela's Economic Crisis: Issues for Congress
This report discusses the economic crisis in Venezuela including its origins of the crisis and current attempts at debt restructuring by the Venezuelan government. The report also outlines U.S. interests in the Venezuelan economy and trade, the outlook for U.S. holders of Venezuelan oil company bonds, ownership of CITGO (the biggest shareholder is the Venezuelan state-oil company), and the prospects of U.S. support of economic recovery in the future.
Date:
January 10, 2018
Creator:
Nelson, Rebecca M.
Object Type:
Report
System:
The UNT Digital Library
Facing the FAST Act: Abortion and Free Speech (Part 2)
Second part of a report regarding the Supreme Court case: "National Institute of Family and Life Advocates (NIFLA) v. Becerra;" it involves a California state law that requires certain pregnancy centers to distribute particular information to clients which they contend violates their free speech rights. This report discusses the potential implications of any Supreme Court decision in "NIFLA" for First Amendment jurisprudence and legislatures seeking to regulate in this area.
Date:
January 10, 2018
Creator:
Killion, Victoria L.
Object Type:
Report
System:
The UNT Digital Library
Transatlantic Relations in 2018
This report discusses the current state of transatlantic relations between the U.S. and Europe and especially the European Union (EU). It also outlines various European concerns over the direction of the Trump Administration and future issues for Congress to consider.
Date:
January 10, 2018
Creator:
Morelli, Vincent L. & Archick, Kristin
Object Type:
Report
System:
The UNT Digital Library
Facing the FAST Act: Abortion and Free Speech (Part 1)
First part of a report regarding the Supreme Court case: "National Institute of Family and Life Advocates (NIFLA) v. Becerra;" it involves a California state law that requires certain pregnancy centers to distribute particular information to clients which they contend violates their free speech rights. This report provides an overview of the challenged law, followed by an analysis of how the Supreme Court might categorize the speech at issue.
Date:
January 10, 2018
Creator:
Killion, Victoria L.
Object Type:
Report
System:
The UNT Digital Library
Sub-nanosecond cinematography in laser fusion research: current techniques and applications at the Lawrence Livermore National Laboratory
Progress in laser fusion research has increased the need for detail and precision in the diagnosis of experiments. This has spawned the development and use of sophisticated sub-nanosecond resolution diagnostic systems. These systems typically use ultrafast x-ray or optical streak cameras in combination with spatially imaging or spectrally dispersing elements. These instruments provide high resolution data essential for understanding the processes occurring in the interaction of high intensity laser light with targets. Several of these types of instruments and their capabilities will be discussed. The utilization of these kinds of diagnostics systems on the nearly completed 100 kJ Nova laser facility will be described.
Date:
January 10, 1985
Creator:
Coleman, L.W.
Object Type:
Article
System:
The UNT Digital Library
Impact of several reactor features on TF coil design for TPSS
Limits of acceptable radiation levels relative to winding pack current densities in the toroidal field (TF) coils is given for relevant reactor designs. Force cooled conductors are stipulated in this study. The maximum field which can be supported while maintaining adequate stability and the ability to protect the coils in the event of a quench to end of the machine life is reported to be 6T. TF configuration, winding pack design, heat removal, stability, copper fraction and effect of damage, limiting current, and protection are discussed. 12 refs., 2 tabs. (WRF)
Date:
January 10, 1986
Creator:
Miller, J. R.
Object Type:
Report
System:
The UNT Digital Library
Steam gasification of carbon: Catalyst properties
Coal gasification by steam is of critical importance in converting coal to gaseous products (CO, H[sub 2], CO[sub 2], CH[sub 4]) that can then be further converted to synthetic natural gas and higher hydrocarbon fuels. Alkali and alkaline earth metals (present as oxides) catalyze coal gasification reactions and cause them to occur at significantly lower temperatures. A more fundamental understanding of the mechanism of the steam gasification reaction and catalyst utilization may well lead to better production techniques, increased gasification rates, greater yields, and less waste. We are studying the gasification of carbon by steam in the presence of alkali and alkaline earth oxides, using carbonates as the starting materials. Carbon dioxide gasification (CO[sub 2] + C --> 2CO) has been studied in some detail recently, but much less has been done on the actual steam gasification reaction, which is the main thrust of our work. In particular, the form of the active catalyst compound during reaction is still questioned and the dependence of the concentration of active sites on reaction parameters is not known. Until recently, no measurements of active site concentrations during reaction had been made. We have recently used transient isotope tracing to determine active site concentration …
Date:
January 10, 1993
Creator:
Falconer, J.L.
Object Type:
Report
System:
The UNT Digital Library
Investigation of Sulfur-Tolerant Catalysts for Selective Synthesis of Hydrocarbon Liquids From Coal-Derived Gases. Quarterly Technical Progress Report, September 19-December 18, 1980
A 15% iron boride on SiO/sub 2/ catalyst was prepared using an alcohol solution reduction with NaBH/sub 4/. H/sub 2/ chemisorption measurements were performed for Fe-S-100 (3% Fe/SlO/sub 2/) and are in progress for the iron-boride-silica catalyst. Reduction of Co catalysts at 623 K rather than 723 K is being tested as a method to improve dispersion by decreasing the amount of Co-support interaction. An in depth study of non olefinic and nonparaffinic compound retention times on the 10% SP2100 chromotograph column has shown that the compounds elute in the following order for a specific carbon number: alkene < alkane < aldehyde < ketone < ester < alcohol < acid. Mass flow controllers have been installed in the reactor system and are fully operational.
Date:
January 10, 1981
Creator:
Bartholomew, C. H.
Object Type:
Report
System:
The UNT Digital Library
Frequencies of small oscillations in the vicinity of a fixed point: Application to sextupole insertions
The stability criterion of A.C. Bountis for the periodic orbits of a dynamical mapping is applied to the horizontal motion of a particle in a storage ring with sextupole magnets. The approach developed takes into account any number of non-linear ''kicks'' in one superperiod of the ring, non-equal spacing between nonlinear elements and a strong focusing magnet system. The stability criterion for a fixed point is given provided such a fixed point is found. The formula for the tune of the small oscillations for any stable fixed point is derived. 2 refs.
Date:
January 10, 1979
Creator:
Kheifets, S.
Object Type:
Report
System:
The UNT Digital Library
Report of Foreign Travel of William Fulkerson, December 1990
The Dahlem Conference on controlling CO{sub 2} in the atmosphere focused on research needs broadly defined. The RD D needs discussed tended to be social-institutional rather than technically oriented perhaps because of the propensity of most attendees, but many important ideas emerged, including those related to questions on technology adoption by both developed, emerging, or transition economics. The European attendees appeared to be strongly devoted to reducing emissions, and doing it soon using efficiency improvement and ultimately renewables. The importance of efficiency improvement was universally accepted, but the extent to which it can be relied upon is a major uncertainty for everyone except the most zealous. There was no detailed discussion of what could be done to encourage the more rapid adoption of renewables. Most attendees seemed to have discounted nuclear, but, at any rate, the problems of reviving nuclear worldwide were not discussed in detail.
Date:
January 10, 1991
Creator:
Fulkerson, William
Object Type:
Report
System:
The UNT Digital Library
Low-density, salt-loaded foams. [RbF]
An experiment was conducted at LLL that required low-density, fine-celled foams uniformly loaded with rubidium. Foams meeting these requirements were produced by impregnating foams made from polyacrylonitrile with rubidium fluoride. Foams with densities from 0.025 to 0.4 g/cm/sup 3/ were prepared and loaded with 0.002 to 0.20 g/cm/sup 3/ of rubidium fluoride.
Date:
January 10, 1979
Creator:
Rinde, J.A.
Object Type:
Report
System:
The UNT Digital Library
Conceptual design plan near-surface test facility: Phase II, Project B-300b
Activities are reported in programs devoted to demonstration and development of techniques for the safe placement and retrieval of the spent fuel canisters in a near-surface flow of the Columbia River Basalt. Other programs are reported designed to determine whether there are any unacceptable effects resulting from the interaction of the nuclear waste and basalt and to provide information to be used for near-term validation of the current numerical design models of the repository. Work is also reported on development of a data base for the design, construction, and licensing of a permanent large-scale basalt repository.
Date:
January 10, 1979
Creator:
Heneveld, W. H. & Mack, R. J.
Object Type:
Report
System:
The UNT Digital Library
Calculation of a tracking force
The original calculation (1975-76) of an electromagnetic mechanism for beam-channel tracking is presented. The system model is not realistic because only a flat profile channel which completely encloses the beam is considered. However, a clear demonstration of the existence of a tracking force is made, as a point of departure for the more recent studies which incorporate a realistic model of the beam head and conductivity profile.
Date:
January 10, 1983
Creator:
Lee, Edward P.
Object Type:
Report
System:
The UNT Digital Library
Regional trends in transmissivity and hydraulic conductivity, lower cretaceous sands, north-central Texas
Depositional and structural history control the regional trends in transmissivity and hydraulic conductivity in Lower Cretaceous-age sands along the Balcones Ouachita trend in North-Central Texas. Because of scarcity of pumping tests, delineation of trends was only possible by incorporating transmissivities estimated from specific capacities. Statistical comparison of estimated and pumping-test transmissivities confirmed the validity of this approach. The resulting contour maps should be useful in the evaluation of these aquifers for potential as low-temperature-geothermal resources; the method can be applied to other aquifers to facilitate ground-water-management programs.
Date:
January 10, 1983
Creator:
Macpherson, G.L.
Object Type:
Report
System:
The UNT Digital Library
Technical analysis support for transportation energy conservation division of DOE. Fifth progress report for December 1978
Brief summaries of status and progress through December 31, 1978 are presented for the following support activities: heat engine systems; alternative fuels utilitization; nonhighway transport systems; new concepts evaluation; electric and hybrid vehicle research and development. Job orders initially selected and assigned to current and prospective support needs are summarized. Historical information concerning task assignments and reporting activities is provided in Appendices A and B. (MCW)
Date:
January 10, 1979
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Arctic National Wildlife Refuge (ANWR): Legislative Actions Through the 110th Congress, First Session
This report is intended to provide a summary of legislative attempts to address issues of energy development and preservation in the Refuge from the 95th Congress through the 110th Congress, with emphasis on the 107th through 110th Congresses.
Date:
January 10, 2008
Creator:
Gillis, Anne; Corn, M. L. & Roberts, Beth A.
Object Type:
Report
System:
The UNT Digital Library
Newsmap. Monday, January 10, 1944 : week of December 29, 1943 to January 5, 1944, 226th week of the war, 108th week of U.S. participation
Front: Text describes action on various war fronts: U.S.S.R., Southwest Pacific, Italy, Air offensive Maps: Central Italy, Rumania/Poland, New Britain Island./ Inset maps: Cassino region; Chieti region. Photographs: Delivering supplies to troops in Central Italy, Gen. Eisenhower with Sir Charles Poetal and Sir Arthur Tedder after the Tehran conference, Gen. Sir Bernard L. Montgomery, and Gen. Sir Alan Brooke inspect Nazi prisoners on the Italian front in New Zealand; Germans prepare to evacuate the Crimea, Landing craft are protected by B-25 medium bombers at Arawe. Back: Illustration and photographs show the many ways Army nurses serve.
Date:
January 10, 1944
Creator:
[United States.] Army Orientation Course.
Object Type:
Poster
System:
The UNT Digital Library
Pipelines for Carbon Dioxide (CO2) Control: Network Needs and Cost Uncertainties
This report examines key uncertainties in CO2 pipeline requirements for carbon capture and sequestration (CCS) by contrasting hypothetical pipeline scenarios in one region of the United States. The report summarizes the key factors influencing CO2 pipeline configuration for major power plants in the region, and illustrates how the viability of different sequestration sites may lead to enormous differences in pipeline costs.
Date:
January 10, 2008
Creator:
Parfomak, Paul W. & Folger, Peter
Object Type:
Report
System:
The UNT Digital Library
Combined Railway-Rail Chair and Tie
Patent for an improved railway-rail chair and tie
Date:
January 10, 1888
Creator:
Marks, Nicholas Marie
Object Type:
Patent
System:
The Portal to Texas History
Texas Register, Volume 17, Number 3, Pages 143-281, January 10, 1992
A weekly publication, the Texas Register serves as the journal of state agency rulemaking for Texas. Information published in the Texas Register includes proposed, adopted, withdrawn and emergency rule actions, notices of state agency review of agency rules, governor's appointments, attorney general opinions, and miscellaneous documents such as requests for proposals. After adoption, these rulemaking actions are codified into the Texas Administrative Code.
Date:
January 10, 1992
Creator:
Texas. Secretary of State.
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
Texas Register, Volume 20, Number 3, Pages 129-174, January 10, 1995
A weekly publication, the Texas Register serves as the journal of state agency rulemaking for Texas. Information published in the Texas Register includes proposed, adopted, withdrawn and emergency rule actions, notices of state agency review of agency rules, governor's appointments, attorney general opinions, and miscellaneous documents such as requests for proposals. After adoption, these rulemaking actions are codified into the Texas Administrative Code.
Date:
January 10, 1995
Creator:
Texas. Secretary of State.
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
Texas Register, Volume 22, Number 3, Pages 133-697, January 10, 1997
A weekly publication, the Texas Register serves as the journal of state agency rulemaking for Texas. Information published in the Texas Register includes proposed, adopted, withdrawn and emergency rule actions, notices of state agency review of agency rules, governor's appointments, attorney general opinions, and miscellaneous documents such as requests for proposals. After adoption, these rulemaking actions are codified into the Texas Administrative Code.
Date:
January 10, 1997
Creator:
Texas. Secretary of State.
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
Texas Attorney General Opinion: GA-0292
Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Greg Abbott, regarding a legal question submitted for clarification; Whether section 1305.003(14) of the Texas Occupations Code exempts from state licensing requirements all persons performing electrical work for a private industrial business, even if a person is not an employee of the private industrial business (RQ-0233-GA)
Date:
January 10, 2005
Creator:
Texas. Attorney-General's Office.
Object Type:
Text
System:
The Portal to Texas History