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Decision Analysis Science Modeling for Application and Fielding Selection Applied to Concrete Decontamination Technologies

Description: Concrete surfaces contaminated with radionuclides present a significant challenge during the decontamination and decommissioning (D and D) process. As structures undergo D and D, coating layers and/or surface layers of the concrete containing the contaminants must be removed for disposal in such a way as to present little to no risk to human health or the environment. The selection of a concrete decontamination technology that is safe, efficient, and cost-effective is critical to the successful… more
Date: January 1, 1998
Creator: Ebadian, M.A. Ross, T.L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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ENHANCED BIOREMEDIATION OF COAL - TAR-CONTAMINATED SOIL. INCLUDES THE SEMIANNUAL REPORT FOR THE PERIOD JANUARY 01, 1998 - JUNE 30, 1998.

Description: Under the conditions used in these experiments, the use of low-level energy acoustic energy did not result in improvements in the biodegradation of PAHs in a PAH-contaminated soil compared to an untreated control. Expected impacts on biodegradation rates by the acoustic energy could not be evaluated as the data were not conducive to this determination. The acoustic energy was only supplied to the treated samples during 10 minutes per day (0.6944 % of a day). It is possible that using longer tre… more
Date: October 1, 1998
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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SILICON CARBIDE JOINING. FINAL TOPICAL REPORT

Description: Future energy systems will be required to fire lower-grade fuels and meet higher energy conversion efficiencies than today's systems. The steam cycle used at present is limited to a maximum temperature of 550 C because above that, the stainless steel tubes deform and corrode excessively. To boost efficiency significantly, much higher working fluid temperatures are required. Although high-temperature alloys will suffice for the construction of these components in the near term, the greatest effi… more
Date: October 1, 1998
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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POC-SCALE TESTING OF OIL AGGLOMERATION TECHNIQUES AND EQUIPMENT FOR FINE COAL PROCESSING

Description: This report covers the technical progress achieved from July 01, 1997 to September 30, 1997 on the POC-Scale Testing Agglomeration Techniques and Equipment for Fine Coal Processing project. Experimental procedures and test data for recovery of fine coal from coal fines streams generated at a commercial coal preparation plant are described. Two coal fines streams, namely Sieve Bend Effluent and Cyclone Overflow were investigated. The test results showed that ash was reduced by more than 50% at c… more
Date: January 1, 1998
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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IMPROVED CORROSION RESISTANCE OF ALUMINA REFRACTORIES

Description: In order to increase the efficiency of advanced coal-fired power systems, higher working fluid temperatures must be reached. Some system surfaces will have to be protected by covering them with corrosion-resistant refractories. Corrosion is the degradation of the material surfaces or grain boundaries by chemical reactions with melts, liquids, or gases causing loss of material and consequently a decrease in strength of the structure. In order to develop methods of reducing corrosion, the microst… more
Date: October 1, 1998
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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ADVANCED SOLIDS NMR STUDIES OF COAL STRUCTURE AND CHEMISTRY

Description: This report covers the progress made on the title project for the project period. The study of coal chemical structure is a vital component of research efforts to develop better chemical utilization of coals, and for furthering our basic understanding of coal geochemistry. In this grant we are addressing several structural questions pertaining to coals with advances in state of the art solids NMR methods. The main activity during this granting period was a detailed comparative analysis of the s… more
Date: March 1, 1998
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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ADVANCED SOLIDS NMR STUDIES OF COAL STRUCTURE AND CHEMISTRY

Description: This report covers the progress made on the title project for the project period. The study of coal chemical structure is a vital component of research efforts to develop better chemical utilization of coals, and for furthering our basic understanding of coal geochemistry. In this grant we are addressing several structural questions pertaining to coals with advances in state of the art solids NMR methods. Our goals are twofold. First, we are interested in developing new methods that will enable… more
Date: March 1, 1997
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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A Characterization and Evaluation of Coal Liquefaction Process Streams

Description: This is the Technical Progress Report for the eleventh quarter of activities under DOE Contract No. DE-AC22-94PC93054. It covers the period January 1 through March 31, 1997. Described in this report are the following activities: (1) CONSOL characterized process stream samples from HTI Run ALC-2, in which Black Thunder Mine coal was liquefied using four combinations of dispersed catalyst precursors. These results are described in the Results and Discussion section of this report. (2) Oil assays … more
Date: April 1, 1998
Creator: Robbins, G. A.; Heunisch, G. W.; Winschel, R. A. & Brandes, S. D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Decision Analysis System for Selection of Appropriate Decontamination Technologies

Description: The principal objective for designing Decision Analysis System for Decontamination (DASD) is to support DOE-EM's endeavor to employ the most efficient and effective technologies for treating radiologically contaminated surfaces while minimizing personnel and environmental risks. DASD will provide a tool for environmental decision makers to improve the quality, consistency, and efficacy of their technology selection decisions. The system will facilitate methodical comparisons between innovative … more
Date: January 1, 1998
Creator: Ebadian, M. A.; Boudreaux, Joseph F.; Chinta, S. & Zanakis, S. H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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ADVANCED SAMPLING AND ANALYSIS OF FINE PARTICULATES. Final Topical Report which includes semiannual for the period of January 1, 1998 - June 30, 1998

Description: Sampling tests indicated that the polycarbonate filters were marginally acceptable for in-stack fine-particle collection because of their 230 F melting point as well as requiring carbon coating to reduce charging effects. Vitreous carbon substrates, although not porous, have acceptable thermal stability as well as acceptable levels of charging. A porous silver membrane filter is also being considered for future testing. Pure reference samples of secondary aerosols have been successfully been co… more
Date: October 1, 1998
Creator: McCollor, Donald P.; Eylands, Kurt E. & Kleven, Patricia L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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SORBENT DEVELOPMENT FOR MERCURY CONTROL. Final topical report including semiannual for January 1, 1998 through June 30, 1998.

Description: The US Environmental Protection Agency (EPA) draft Mercury Study Report to Congress (1) estimated anthropogenic mercury emissions to be 253 tons/yr in the US, with the majority (216 tons/yr) from combustion sources. The three main combustion sources listed were coal (72 tons/yr), medical waste incinerators (65 tons/yr), and municipal waste combustors (64 tons/yr). The emissions from both medical waste incinerators and municipal waste combustors were recently regulated, which, together with the … more
Date: October 1, 1998
Creator: Hassett, David J.; Olson, Edwin S.; Dunham, Grant E.; Sharma, Ramesh K.; Timpe, Ronald C. & Miller, Stanley J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Decision Analysis Science Modeling for Application and Fielding Selection Applied to Equipment Dismantlement Technologies

Description: The dismantlement of radioactively contaminated process equipment is a major concern during the D and D process. As buildings undergo the D and D process, metallic equipment contaminated with radionuclides such as uranium and plutonium must be dismantled before final disposal.The primary objective for equipment dismantlement is to reduce the potential for personnel and environmental exposure to contaminants during the decommissioning of the nuclear facility. The selection of the appropriate tec… more
Date: January 1, 1998
Creator: Ebadian, M.A. & Lagos, L.E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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TEMPERATURE, VELOCITY AND SPECIES PROFILE MEASUREMENTS FOR REBURNING IN A PULVERIZED, ENTRAINED FLOW, COAL COMBUSTOR

Description: An experimental program has been completed to make detailed measurements of a pulverized coal flame with reburning and advanced reburning. Maps of species (CO, CO{sub 2}, O{sub 2} , NO, HCN, and NH{sub 3}), temperature and velocity have been obtained which consist of approximately 60 measurements across a cross sectional plane of the reactor. A total of six of these maps have been obtained. Three operating conditions for the baseline flame have been mapped, two operating conditions with reburni… more
Date: October 1, 1998
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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ADVANCED POWER SYSTEMS - ASH BEHAVIOR IN POWER SYSTEMS. INCLUDES THE SEMIANNUAL REPORT FOR THE PERIOD JANUARY 01, 1998 - JUNE 30, 1998.

Description: The overall goal of this initiative is to develop fundamental knowledge of ash behavior in power systems for the purpose of increasing power production efficiency, reducing operation and maintenance costs, and reducing greenhouse gas emissions into the atmosphere. The specific objectives of this initiative focus primarily on ash behavior related to advanced power systems and include the following: Determine the current status of the fundamental ash interactions and deposition formation mechanis… more
Date: September 1, 1998
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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High Conversion of Coal to Transportation Fuels for the Future With Low HC Gas Production

Description: An announced objective of the Department of Energy in funding this work, and other current research in coal liquefaction, is to produce a synthetic crude from coal at a cost lower than $30.00 per barrel (Task A). A second objective, reflecting a recent change in direction in the synthetic fuels effort of DOE, is to produce a fuel which is low in aromatics, yet of sufficiently high octane number for use in the gasoline- burning transportation vehicles of today. To meet this second objective, res… more
Date: July 1, 1996
Creator: Oblad, Alex G. & Wiser, Wendell H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

DESIGN OF ATOMIZERS AND BURNERS FOR COAL-WATER SLURRY COMBUSTION

Description: A new, miniature variation on the Triple-Concentric atomizer (TCA) was designed and constructed. This prototype will be used to test the applicability of the TCA concept to very fine sprays such as medical nebulizers. Preliminary tests of its performance with plain water were conducted. Atomization tests of an aqueous polymer solution were conducted using the existing TCA. These tests show that there is little change in the Sauter Mean diameter as polymer concentration or molecular weight are i… more
Date: July 1, 1998
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Evaluation of Coating Removal and Aggressive Surface Removal Surface Technologies Applied to Concrete Walls, Brick Walls, and Concrete Ceilings

Description: The purpose of this investigation was to test and evaluate innovative and commercially available technologies for the surface decontamination of walls and ceilings. This investigation supports the DOE's objectives of reducing risks to human health and the environment through its restoration projects at FEMP and MEMP. This project was performed at the Hemispheric Center for Environmental Technology (HCET) at Florida International University (FIU), where one innovative and four commercially avail… more
Date: November 1, 1997
Creator: Lagos, L.E. & Ebadian, M.A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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PARTICULATE HOT GAS STREAM CLEANUP TECHNICAL ISSUES

Description: This quarterly report describes technical activities performed under Contract No. DE-AC21-94MC31160. The analyses of hot gas stream cleanup (HGCU) ashes and descriptions of filter performance studied under Task 1 of this contract are designed to address problems with filter operation that are apparently linked to characteristics of the collected ash. This report includes summaries of analyses performed on particulate samples from Sierra Pacific Power Company's Pinon Pine Power Project. This rep… more
Date: May 1, 1999
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Control of Trace Metal Emissions During Coal Combustion

Description: Emissions of toxic trace metals in the form of metal fumes or submicron particulate from a coal-fired combustion source have received greater environmental and regulatory concern over the past years. Current practice of controlling these emissions is to collect them at the cold-end of the process by air-pollution control devices (APCDS) such as electrostatic precipitators and baghouses. However, trace metal fumes may not always be effectively collected by these devices because the formed fumes … more
Date: October 1, 1996
Creator: Ho, Thomas C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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ALTERNATIVE FUELS AND CHEMICALS FROM SYNTHESIS GAS. FINAL QUARTERLY STATUS REPORT

Description: The overall objectives of this program are to investigate potential technologies for the conversion of synthesis gas to oxygenated and hydrocarbon fuels and industrial chemicals, and to demonstrate the most promising technologies at DOE's LaPorte, Texas, Slurry Phase Alternative Fuels Development Unit (AFDU). The program will involve a continuation of the work performed under the Alternative Fuels from Coal-Derived Synthesis Gas Program and will draw upon information and technologies generated … more
Date: April 1, 1999
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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THE ECONOMICAL PRODUCTION OF ALCOHOL FUELS FROM COAL-DERIVED SYNTHESIS GAS

Description: Langmuir-Hinshelwood-type kinetic schemes were derived for the formation of methanol through butanol and total hydrocarbons over a Co-K-MoS{sub 2}/C catalyst. Reduced Mo-Ni-K/C materials continue to be considered as promising catalysts for HAS. A kinetic study of this catalyst has been started. TPR results on alkali-substituted Mo/C are beginning to be amenable to a systematic quantitative analysis. The characterization studies of transition-metal-oxide catalysts has ended. Consideration of var… more
Date: January 1, 1997
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

ADVANCED SOLIDS NMR STUDIES OF COAL STRUCTURE AND CHEMISTRY

Description: This report covers the progress made on the title project for the project period. The study of coal chemical structure is a vital component of research efforts to develop better chemical utilization of coals, and for furthering our basic understanding of coal geochemistry. In this grant we are addressing several structural questions pertaining to coals with advances in state of the art solids NMR methods. The main activity during this granting period was a completion of a detailed comparative a… more
Date: September 1, 1997
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

REDUCING POWER PRODUCTION COSTS BY UTILIZING PETROLEUM COKE

Description: A Powder River Basin subbituminous coal from the North Antelope mine and a petroleum shot coke were received from Northern States Power Company (NSP) for testing the effects of parent fuel properties on coal-coke blend grindability and evaluating the utility of petroleum coke blending as a strategy for improving electrostatic precipitator (ESP) particulate collection efficiency. Petroleum cokes are generally harder than coals, as indicated by Hardgrove grindability tests. Therefore, the weaker … more
Date: September 1, 1998
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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