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ASSESSMENT OF THE PCFBC-EXPOSED AND ACCELERATED LIFE-TESTED CANDLE FILTERS

Description: Development of the hot gas filtration technology has been the focus of DOE/FETC and Siemens Westinghouse Power Corporation during the past twenty years. Systems development during this time has successfully lead to the generation and implementation of high temperature Siemens Westinghouse particulate filtration systems that are currently installed and are operational at Demonstration Plant sites, and which are ready for installation at commercial plant sites. Concurrently, materials development… more
Date: September 30, 1999
Creator: Alvin, M. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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OPTIMIZATION OF CHAR FOR NOx REMOVAL

Description: Work performed for this study demonstrates that the temperature of treatment and the identity of the treatment gas both strongly impact the surface chemistry of activated carbon. Two commercial activated carbons were treated in either N{sub 2} or H{sub 2} at different temperatures up to 2600 C. Several techniques--including microcalorimetry, point of zero charge measurements, thermal desorption--were used to provide insight into important aspects of the chemical surface properties. The results … more
Date: September 1, 1999
Creator: Phillips, J.; Radovic, L.R.; Xia, B. & Menendez, J.A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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ATTRITION RESISTANT IRON-BASED FISCHER-TROPSCH CATALYSTS

Description: Fischer-Tropsch (FT) synthesis to convert syngas (CO + H{sub 2}) derived from natural gas or coal to liquid fuels and wax is a well-established technology. For low H{sub 2} to CO ratio syngas produced from CO{sub 2} reforming of natural gas or from gasification of coal, the use of Fe catalysts is attractive because of their high water gas shift activity in addition to their high FT activity. Fe catalysts are also attractive due to their low cost and low methane selectivity. Because of the highl… more
Date: October 1, 1999
Creator: Jothimurugesan, K.; James G. Goodwin, Jr. & Gangwal, Santosh K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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COAL CONVERSION WASTEWATER TREATMENT BY CATALYTIC OXIDATION IN SUPERCRITICAL WATER

Description: Wastewaters from coal-conversion processes contain phenolic compounds in appreciable concentrations. These compounds need to be removed so that the water can be discharged or re-used. Catalytic oxidation in supercritical water is one potential means of treating coal-conversion wastewaters, and this project examined the reactions of phenol over different heterogeneous oxidation catalysts in supercritical water. More specifically, we examined the oxidation of phenol over a commercial catalyst and… more
Date: October 18, 1999
Creator: Savage, Phillip E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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IN SITU INFRARED STUDY OF CATALYTIC DECOMPOSITION OF NITRIC OXIDE (NO)

Description: The growing concerns for the environment and increasingly stringent standards for NO emission have presented a major challenge to control NO emissions from electric utility plants and automobiles. Catalytic decomposition of NO is the most attractive approach for the control of NO emission for its simplicity. Successful development of an effective catalyst for NO decomposition will greatly decrease the equipment and operation cost of NO control. Due to lack of understanding of the mechanism of N… more
Date: December 31, 1999
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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EFFECT OF HEATING RATE ON THE THERMODYNAMIC PROPERTIES OF PULVERIZED COAL

Description: This semi-annual technical progress report describes work performed under DOE Grant No. DE-FG22-96PC96224 during the period March 24, 1999 to September 23, 1999 which covers the last (sixth) six months of the project. During this reporting period, extraction of devolatilization time-scales and temperature data at these time-scales analyzing the high-speed films taken during the experiments was complete. Also a new thermodynamic model was developed to predict the heat transfer behavior for coal … more
Date: November 2, 1999
Creator: Sampath, Ramanathan
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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BINDER MODIFICATION AND DEVELOPMENT FOR BRIQUETTING STEEL MILL RESIDUES

Description: Alternatives to the molasses-ordinary portland cement (OPC) binder as a binder for steel mill residues were extensively investigated. A large number of binder modifications were tested using a hand pelleting apparatus to identify effective compositions. The more effective compositions were evaluated in a series of three briquetting matrices using the Komarek press. Evaluations consisted of drop tests, compression tests of given and cured pellets, and tumble tests of cured pellets. Pyrolysis odo… more
Date: July 1, 1998
Creator: Olson, Edwin S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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ADVANCED SORBENT DEVELOPMENT PROGRAM

Description: The overall objective of this program was to develop regenerable sorbents for use in the temperature range of 343 to 538 C (650 to 1000 F) to remove hydrogen sulfide (H{sub 2}S) from coal-derived fuel gases in a fluidized-bed reactor. The goal was to develop sorbents that are capable of reducing the H{sub 2}S level in the fuel gas to less than 20 ppmv in the specified temperature range and pressures in the range of 1 to 20 atmospheres, with chemical characteristics that permit cyclic regenerati… more
Date: June 16, 1998
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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RIVERTON DOME GAS EXPLORATION AND STIMULATION TECHNOLOGY DEMONSTRATION, WIND RIVER BASIN, WYOMING

Description: A primary objective of the Institute for Energy Research (IER)-Santa Fe Snyder Corporation DOE Riverton Dome project is to test the validity of a new conceptual model and resultant exploration paradigm for so-called ''basin center'' gas accumulations. This paradigm and derivative exploration strategy suggest that the two most important elements crucial to the development of prospects in the deep, gas-saturated portions of Rocky Mountain Laramide Basins (RMLB) are (1) the determination and, if p… more
Date: August 1, 1999
Creator: Surdam, Dr. Ronald C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

MAGNETO-CHEMICAL CHARACTER STUDIES OF NOVEL FE CATALYSTS FOR COAL LIQUEFACTION

Description: The primary objectives of research during this period were: (1) To prepare ferric molybdate-molybdenum trioxide catalysts with different Fe/Mo ratio using co-precipitation method and Pyrolysis; (2) To examine the magnetic character of the catalysts at different stages (i.e, prior to and after exposing to CO only and CO + H{sub 2}); and (3) To examine the catalytic character of these catalysts.
Date: November 1, 1998
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

PARTICLE TRANSPORT AND DEPOSITION IN THE HOT-GAS FILTER AT WILSONVILLE

Description: Particle transport and deposition in the Wilsonville hot-gas filter vessel is studied. The filter vessel contains a total of 72 filters, which are arranged in two tiers. These are modeled by six upper and one lower cylindrical effective filters. An unstructured grid of 312,797 cells generated by GAMBIT is used in the simulations. The Reynolds stress model of FLUENT{trademark} (version 5.0) code is used for evaluating the gas mean velocities and root mean-square fluctuation velocities in the ves… more
Date: June 24, 1999
Creator: Ahmadi, Goodarz
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

ENGINEERING DEVELOPMENT OF SLURRY BUBBLE COLUMN REACTOR (SBCR) TECHNOLOGY

Description: The major technical objectives of this program are threefold: (1) to develop the design tools and a fundamental understanding of the fluid dynamics of a slurry bubble column rector to maximize reactor productivity, (2) to develop the mathematical reactor design models and gain an understanding of the hydrodynamic fundamentals under industrially relevant process conditions, and (3) to develop an understanding of the hydrodynamics and their interaction with the chemistries occurring in the bubble… more
Date: June 30, 1998
Creator: Toseland, Bernard A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

COMBUSTION CHARACTERIZATION OF COAL-WATER SLURRY FUEL PREPARED FROM PLANT COAL AND RECOVERED COAL FINES

Description: In the process of coal cleaning operations, a significant amount of coal is washed away as waste into the ponds. Clearly, such a large quantity of dumped coal fines has a detrimental effect on the environment. This investigation presents in innovative approach to recover and utilize waste coal fines from the preparation plant effluent streams and tailing ponds. Due to the large moisture content of the recovered coal fines, this study is focused on the utilization of coal fines in the coal-water… more
Date: July 1, 1997
Creator: Masudi, Houshang
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

ENGINEERING DEVELOPMENT OF SLURRY BUBBLE COLUMN REACTOR (SBCR) TECHNOLOGY

Description: The major technical objectives of this program are threefold: (1) to develop the design tools and a fundamental understanding of the fluid dynamics of a slurry bubble column reactor to maximize reactor productivity, (2) to develop the mathematical reactor design models and gain an understanding of the hydrodynamic fundamentals under industrially relevant process conditions, and (3) to develop an understanding of the hydrodynamics and their interaction with the chemistries occurring in the bubbl… more
Date: January 1, 1999
Creator: Bernard A. Toseland, Ph.D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

HIGH EFFICIENCY, QUASI-INSTANTANEOUS STEAM EXPANSION DEVICE UTILIZING FOSSIL OR NUCLEAR FUEL AS THE HEAT SOURCE

Description: Thermal-hydraulic analysis of a specially designed steam expansion device (heat cavity) was performed to prove the feasibility of steam expansions at elevated rates for power generation with higher efficiency. The steam expansion process inside the heat cavity greatly depends on the gap within which the steam expands and accelerates. This system can be seen as a miniaturized boiler integrated inside the expander where steam (or the proper fluid) is generated almost instantaneously prior to its … more
Date: June 1, 1999
Creator: Claudio Filippone, Ph.D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Carbon sequestration research and development

Description: Predictions of global energy use in the next century suggest a continued increase in carbon emissions and rising concentrations of carbon dioxide (CO{sub 2}) in the atmosphere unless major changes are made in the way we produce and use energy--in particular, how we manage carbon. For example, the Intergovernmental Panel on Climate Change (IPCC) predicts in its 1995 ''business as usual'' energy scenario that future global emissions of CO{sub 2} to the atmosphere will increase from 7.4 billion to… more
Date: December 1999
Creator: Reichle, Dave; Houghton, John; Kane, Bob; Ekmann, Jim; Benson, Sally; Clarke, John et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

BLAST FURNACE GRANULAR COAL INJECTION SYSTEM. Final Report Volume 2: Project Performance and Economics

Description: Bethlehem Steel Corporation (BSC) requested financial assistance from the Department of Energy (DOE), for the design, construction and operation of a 2,800-ton-per-day blast furnace granulated coal injection (BFGCI) system for two existing iron-making blast furnaces. The blast furnaces are located at BSC's facilities in Burns Harbor, Indiana. The demonstration project proposal was selected by the DOE and awarded to Bethlehem in November 1990. The design of the project was completed in December … more
Date: October 1, 1999
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Bench-Scale Demonstration of Hot-Gas Desulfurization Technology

Description: Prior to the current project, development of the DSRP was done in a laboratory setting, using synthetic gas mixtures to simulate the regeneration off-gas and coal gas feeds. The objective of the current work is to further the development of zinc titanate fluidized-bed desulfurization (ZTFBD) and the DSRP for hot-gas cleanup by testing with actual coal gas. The objectives of this project are to: (1) Develop and test an integrated, skid-mounted, bench-scale ZTFBD/DSRP reactor system with a slipst… more
Date: July 1, 1997
Creator: Portzer, Jeffrey W. & Gangwal, Santosh K.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Fluid Dynamics of Pressurized, Entrained Coal Gasifiers

Description: Pressurized, entrained gasification is a promising new technology for the clean and efficient combustion of coal. Its principle is to operate a coal gasifier at a high inlet gas velocity to increase the inflow of reactants, and at an elevated pressure to raise the overall efficiency of the process. Unfortunately, because of the extraordinary difficulties involved in performing measurements in hot, pressurized, high-velocity pilot plants, its fluid dynamics are largely unknown. Thus the designer… more
Date: March 31, 1997
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Enhanced Control of Mercury and other HAP by Innovative Modifications to Wet FGD Processes

Description: The overall objective of this project was to learn more about controlling emissions of hazardous air pollutants (HAPs) from coal-fired power plants that are equipped with wet flue gas desulfurization (FGD) systems. The project was included by FETC as a Phase I project in its Mega-PRDA program. Phase I of this project focused on three research areas. These areas in order of priority were: (1) Catalytic oxidation of vapor-phase elemental mercury; (2) Enhanced particulate-phase HAPs removal by ele… more
Date: July 1, 1997
Creator: Hargrove, O. W.; Carey, T. R.; Richardson, C. F.; Skarupa, R. C.; Meserole, F. B.; Rhudy, R. G. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Bioremediation Techniques of Oil Contaminated Soils in Ohio

Description: The objective of this project is to develop environmentally sound and cost-effective remediation techniques for crude oil contaminated soils. By providing a guidance manual to oil and gas operators, the Ohio Division of Oil and Gas regulatory authority hopes to reduce remediation costs while improving voluntary compliance with soil clean-up requirements. This shall be accomplished by conducting a series of field tests to define the optimum range for nutrient and organic enhancement to biologica… more
Date: October 3, 1996
Creator: Hodges, David
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Clear Liquor Scrubbing with Anhydrite Production

Description: The objective of this project to develop an advanced flue gas desulfurization (FGD) process that has decreased capital and operating costs, higher SO{sub 2} removal efficiency, and better by-product solids quality than existing, commercially available technology. A clear liquor process (which uses a scrubbing liquid with no solids) will be used to accomplish this objective rather than a slurry liquor process (which contains solids). This clear liquor scrubbing (CLS) project is focused on three … more
Date: July 1, 1997
Creator: Hargrove, O. W.; Carey, T. R.; Lowell, P. S.; Meserole, F. B.; Rhudy, R. G. & Feeley, Thomas J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

ERC Program Overview

Description: The carbonate fuel cell promises highly efficient, cost-effective, environmentally superior power generation from pipeline natural gas, coal gas, biogas, and other gaseous and liquid fuels. ERC has been engaged in the development of this unique technology since the late 1970s, primarily focusing on the development of the Direct Fuel Cell (DFC) technology [1-6] pioneered by ERC. The DFC design incorporates the unique internal reforming feature which allows utilization of a hydrocarbon fuel direc… more
Date: August 1, 1996
Creator: Maru, H.; Farooque, M.; Carlson, G.; Patel, P.; Yuh, C.; Bentley, C. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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