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Examinations of Chemical Resistance and Thermal Behaviour of Ceramic Filter Materials for Hot-Gas Cleaning

Description: Increasing prosperity and the steady growth of the world population lead to a strongly rising energy requirement. Therefore the saving of the available resources as well as the limitation of CO{sub 2}-emission are the main reasons for developing highly efficient power stations. The use of combined cycle technology for advanced coal fired power plants allow a significantly higher conversion efficiency than it is possible in an only steam power plant. In order to increase the gas turbine inlet te… more
Date: September 19, 2002
Creator: Angermann, J.; Meyer, B. & Horlbeck, W.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Dismantling of the Reactor Block of the FRJ-1 Research Reactor (MERLIN)

Description: This report describes the past procedure in dismantling the reactor block of the FRJ-1 research reactor (MERLIN). Furthermore, it gives an outlook on future activities up to the final removal of the reactor block. MERLIN is an abbreviation for Medium Energy Research Light Water Moderated Industrial Nuclear Reactor. The FRJ-1 (MERLIN) was shut down in 1985 and the fuel elements removed from the facility. After dismantling the coolant loops and removing the reactor tank internals with subsequent … more
Date: February 27, 2003
Creator: Stahn, B.; Matela, K.; Zehbe, C.; Poeppinghaus, J. & Cremer, J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Demonstration of a Universal Solvent Extraction Process for the Separation of Cesium and Strontium from Actual Acidic Tank Waste at the INEEL

Description: A universal solvent extraction process is being evaluated for the simultaneous separation of Cs, Sr, and the actinides from acidic high-activity tank waste at the Idaho National Engineering and Environmental Laboratory (INEEL) with the goal of minimizing the high-activity waste volume to be disposed in a deep geological repository. The universal solvent extraction process is being developed as a collaborative effort between the INEEL and the Khlopin Radium Institute in St. Petersburg, Russia. T… more
Date: August 1999
Creator: Zaitsev, B. N.; Wood, D. J.; Smirnov, I. V.; Law, J. D.; Herbst, R. S.; Todd, T. A. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Kinetics and mechanism of catalytic hydroprocessing of components of coal-derived liquids. Twentieth quarterly report, February 16, 1984-May 15, 1984

Description: Kinetics data have been determined for the catalytic hydroprocessing of the acidic fractions of a heavy distillate of a liquid derived from Powhatan No. 5 coal. A commercial, sulfided Ni-Mo/..gamma..-Al/sub 2/O/sub 3/ catalyst was used in the experiments, carried out at 350/sup 0/C and 120 atm with the coal liquid fractions dissolved in cyclohexane. The feed and hydrotreated products were analyzed by gas chromatography/mass spectrometry. The data were analyzed with group-type methods for compou… more
Date: June 26, 1984
Creator: Gates, Bruce C.; Olson, Jon H.; Schuit, G. C. A.; Stiles, Alvin B. & Petrakis, Leon
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Low temperature SO sub 2 removal with solid sorbents in a Circulating Fluidized Bed Absorber

Description: The construction of a bench-scale Circulating Fluidized Bed Absorber (CFBA) unit has been completed, and system calibrations have already been performed. In addition, as a novel method injecting water into CFBA, a toroidal-shaped nozzle was designed and installed in a bed reactor to increase the wetting efficiency of solid sorbents. The experimental set up for low temperature SO{sub 2} removal consists of a bed reactor of 3 inches in diameter and 10 feet in length, two high efficiency cyclones … more
Date: January 1, 1992
Creator: Lee, S. K. & Keener, T. C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Kinetics and mechanism of desulfurization and denitrogenation of coal-derived liquids. Quarterly report, June 20, 1976--September 19, 1976

Description: Two high-pressure flow microreactors are functioning efficiently in studies of dibenzothiophene hydrodesulfurization and quinoline hydrodenitrogenation. Assembly of a third microreactor is scheduled for completion in about three months. Dibenzothiophene hydrodesulfurization at conditions such as 1,000 psig and 300-350/sup 0/C takes place in the absence of mass transfer influence. The rate is surprisingly high, requiring temperatures of 300/sup 0/C or less for determination of differential conve… more
Date: October 1, 1976
Creator: Gates, B. C.; Katzer, J. R.; Olson, J. H.; Kwart, H. & Stiles, A. B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Removal of gasoline vapors from air streams by biofiltration

Description: Research was performed to develop a biofilter for the biodegradation of gasoline vapors. The overall goal of this effort was to provide information necessary for the design, construction, and operation of a commercial gasoline vapor biofilter. Experimental results indicated that relatively high amounts of gasoline vapor adsorption occur during initial exposure of the biofilter bed medium to gasoline vapors. Biological removal occurs over a 22 to 40[degrees]C temperature range with removal being… more
Date: March 1, 1993
Creator: Apel, W. A.; Kant, W. D.; Colwell, F. S.; Singleton, B.; Lee, B. D.; Andrews, G. F. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

National Emission Standards for Hazardous Air Pollutants Application for Approval to Stabilize the 105N Basin

Description: The 105N Basin (basin) Stabilization will place the basin in a radiologically and environmentally safe condition so that it can be decommissioned at a later date. The basin stabilization objectives are to inspect for Special Nuclear Material (SNM) (i.e., fuel assemblies and fuel pieces), remove the water from the basin and associated pits, and stabilize the basin surface. The stabilization will involve removal of basin hardware, removal of basin sediments, draining of basin water, and cleaning … more
Date: May 1, 1994
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Termination of light-water reactor core-melt accidents with a chemical core catcher: the core-melt source reduction system (COMSORS)

Description: The Core-Melt Source Reduction System (COMSORS) is a new approach to terminate light-water reactor core melt accidents and ensure containment integrity. A special dissolution glass is placed under the reactor vessel. If core debris is released onto the glass, the glass melts and the debris dissolves into the molten glass, thus creating a homogeneous molten glass. The molten glass, with dissolved core debris, spreads into a wide pool, distributing the heat for removal by radiation to the reactor… more
Date: September 1, 1996
Creator: Forsberg, C. W.; Parker, G. W.; Rudolph, J. C.; Osborne-Lee, I. W. & Kenton, M. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Kinetics of Mn-based sorbents for hot coal gas desulfurization: Quarterly progress report, December 15, 1994--March 15, 1995. Task 2 -- Exploratory experimental studies: Single pellet tests; Rate mechanism analysis

Description: In earlier studies, zinc ferrite and zinc titanate were developed as regenerable sorbents capable of removing hydrogen sulfide from hot fuel gases originating from coal gasification. Manganese ore as well as manganese carbonate, precipitated from aqueous solutions, combined with alumina to form indurated pellets hold promise of being a highly-effective, inexpensive, regenerable sorbent for hot fuel gases. Although the thermodynamics for sulfur removal by manganese predicts somewhat higher hydro… more
Date: March 15, 1995
Creator: Hepworth, M.T.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Clean coal technology III 10 MW demonstration of gas suspension absorption. Final public design report

Description: This report provides the nonproprietary design information for the ``10 MW Demonstration of Gas Suspension Absorption (GSA)`` Demonstration Project at Tennessee Valley Authority`s (TVA) Shawnee Power Station, Center for Emission Research (CER). The 10 MW Demonstration of GSA program is designed to demonstrate the performance of the GSA system in treating the flue gas from a boiler burning high sulfur coal. This project involves design, manufacturing, construction and testing of a retrofitted GS… more
Date: June 1, 1995
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Eliminating the possibility at Chernobyl 4 of recriticality with positive feedback

Description: We have recently published an article in which we discuss means by which plutonium and other fissile material stored underground could reach criticality with positive feedback and therefore explosive potential. The Chernobyl rubble involving hundreds of tons of material is similar in some respects to the systems analyzed in the paper, and the practices there to control criticality may well increase the probability of a second event at Chernobyl 4. This paper explores the Chernobyl situation and… more
Date: April 29, 1996
Creator: Bowman, C. D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Advanced in-duct sorbent injection for SO{sub 2} control. Topical report No. 4, Task 3, Optimized advanced process evaluation

Description: The objective of this research project is to develop second- generation duct injection technology as a cost-effective compliance option for the 1990 Clean Air Act Amendments. Specific performance targets are 90% SO{sup 2} removal and 60% sorbent utilization efficiency. Research focused on the Advanced Coolside process, which showed the potential for exceeding these targets. The objective of Subtask 3.1, Performance Testing, was to develop process performance and operability data for design and … more
Date: December 1, 1994
Creator: Rosenhoover, W. A.; Stouffer, M. R.; Maskew, J. T.; Withum, J. A.; Wu, M. M. & Winschel, R. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Simultaneous Removal of H{Sub 2}S and NH{Sub 3} in Coal Gasification Process. Quarterly Progress Report, October 1--December 31, 1994

Description: The objective of this study is to develop advanced high-temperature coal gas desulfurization mixed-metal oxide sorbents with stable ammonia decomposition materials at 550--800 C. The specific objectives of the project are to: (1) develop combined sorbent-catalyst materials which shall be capable of removing hydrogen sulfide to less than 20 ppmv and ammonia by at least 90%; (2) carry out comparative fixed-bed studies of absorption and regeneration with various formulations of sorbent-catalyst sy… more
Date: October 1, 1995
Creator: Jothimurugesan, K.; Adeyiga, A. A. & Gangwal, S. K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Electric Power Research Institute, Environmental Control Technology Center report to the Steering Committee. Final technical report

Description: Operations and maintenance continued this month at the Electric Power Research Institute`s Environmental Control Technology Center. Testing on the 4.0 MW Pilot Wet FGD unit continued this month with the Trace Element Removal (TER) test block, and a simultaneous testing of the Lime Forced Oxidation process with DBA addition (LDG). At the end of the month, a series of Duct Injection tests began in a study to determine the efficiencies of alkaline injection for removing trace elements (mercury). O… more
Date: July 1, 1995
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Initial operation of the Tidd PFBC HGCU test facility

Description: The objective of this program is to evaluate the design and obtain operating experience for up to two advanced particle filter (APF) systems through long-term testing on a slip stream at Ohio Power Company's Tidd PFBC Demonstration Plant. Performance and reliability of commercial-scale filter modules will be monitored to aid in an assessment of the readiness and economic viability of this technology for commercial PFBC applications. The engineering, and design of the hot gas piping systems modi… more
Date: January 1, 1992
Creator: Hoffman, J.D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Perceptions of Restorative Practices by Male Students of Color in Middle School

Description: Zero-tolerance discipline policies have been in use in U.S. schools for almost 25 years. Since their enactment in the 1990s, researchers have found that zero tolerance disciplinary policies and practices can cause students to enter the school-to-prison pipeline. The purpose of this qualitative case study was to understand the perceptions of middle-school male students of color regarding the discipline process on a campus that supplemented zero-tolerance discipline with restorative practices (… more
Date: May 2020
Creator: Millican, Deborah
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

High temperature membranes for H{sub 2}S and SO{sub 2} separations. Quarterly progress report, July 1, 1992--September 30, 1992

Description: High temperature membrane separation techniques have been applied to gas mixtures involved in coal utilization. For coal gasification, H{sub 2}S has been removed from the syn-gas stream, split into hydrogen which enriches the syn-gas, and sulfur which can be condensed from an inert gas sweep stream. For coal combustion, SO{sub 2} has been separated from the flue gas, with concentrated SO{sub 3} produced as a by-product. Both processes appear economically viable but each requires fundamental imp… more
Date: December 31, 1992
Creator: Winnick, J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

High temperature membranes for H{sub 2}S and SO{sub 2} separations. Quarterly progress report, January 1, 1994--March 31, 1994

Description: High temperature membrane separation techniques have been applied to gas mixtures involved in coal utilization. For coal gasification, H{sub 2}S has been removed from the syn-gas stream, split into hydrogen which enriches the syn-gas, and sulfur which can be condensed from an inert gas sweep stream. For coal combustion, SO{sub 2} has been separated from the flue gas, with concentrated SO{sub 3} produced as a by-product. Both processes appear economically viable but each requires fundamental imp… more
Date: August 1, 1994
Creator: Winnick, J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Video requirements plan for the HMT equipment removal system

Description: This document is the plan defining the video coverage requirements for the equipment removal event of the Hydrogen Mitigation Test (HMT) mixer pump currently installed in high level nuclear waste storage Tank 241-SY-101. When the mixer pump fails the removal and installation of a spare pump will be a time critical event. Since the success of the HMT mixer pump has resolved the DOE safety issue it is absolutely essential that mixing be restored to the tank in a short as time possible. Therefore,… more
Date: February 1, 1995
Creator: Vargo, G. F., Jr.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Pre-Conceptual Design of a Fluoride-Salt-Cooled Small Modular Advanced High Temperature Reactor (SmAHTR)

Description: This document presents the results of a study conducted at Oak Ridge National Laboratory during 2010 to explore the feasibility of small modular fluoride salt-cooled high temperature reactors (FHRs). A preliminary reactor system concept, SmATHR (for Small modular Advanced High Temperature Reactor) is described, along with an integrated high-temperature thermal energy storage or salt vault system. The SmAHTR is a 125 MWt, integral primary, liquid salt cooled, coated particle-graphite fueled, low… more
Date: February 1, 2011
Creator: Greene, Sherrell R; Gehin, Jess C; Holcomb, David Eugene; Carbajo, Juan J; Ilas, Dan; Cisneros, Anselmo T et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
captions transcript

[News Clip: Flood Volunteers]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: May 31, 1990, 6:00 p.m.
Duration: 1 minute 20 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
open access

Direct chlorination process for geothermal power plant off-gas - hydrogen sulfide abatement

Description: The Direct Chlorination Process removes hydrogen sulfide from geothermal off-gases by reacting hydrogen sulfide with chlorine in the gas phase. Hydrogen chloride and elemental sulfur are formed by this reaction. The Direct Chlorination Process has been successfully demonstrated by an on-site operation of a pilot plant at the 3 M We HPG-A geothermal power plant in the Puna District on the island of Hawaii. Over 99.5 percent hydrogen sulfide removal was achieved in a single reaction stage. Chlori… more
Date: June 1, 1983
Creator: Sims, A.V.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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