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in subjects: "200202 -- Fossil-Fueled Power Plants-- Waste Management-- Noxious Gas & Particulate Emissions"  
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Enhancing the use of coals by gas reburning-sorbent injection

Description: The objective of this project is to evaluate and demonstrate a cost effective emission control technology for acid rain precursors, oxides of nitrogen (NO{sub x}) and sulfur (SO{sub x}), on three coal fired utility boilers in Illinois. The units selected are representative of pre-NSPS design practices; tangential, wall, and cyclone fired. The specific objectives are to demonstrate reductions of 60 percent in NO{sub x} and 50 percent in SO{sub x} emissions, by a combination of two developed tech… more
Date: December 22, 1988
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

LIMB Demonstration Project Extension

Description: The basic goal of the Limestone Injection Multistage Burner (LIMB) demonstration is to extend LIMB technology development to a full- scale application on a representative wall-fired utility boiler. The successful retrofit of LIMB to an existing boiler is expected to demonstrate that (a) reductions of 50 percent or greater in SO{sub x} and NO{sub x} emissions can be achieved at a fraction of the cost of add-on FGD systems, (b) boiler reliability, operability, and steam production can be maintain… more
Date: December 15, 1988
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

An evaluation of a pre-charging pulse-jet filter for small combustor particulate control

Description: The objective of this test program is the performance and economic evaluation of a pre charged-pulse jet filter as the principal particulate control device for a commercial or industrial scale coal fired combustor. Performance factors that will be considered are the effects of particle charge, air/cloth ratio, fabric types, percent humidity and inlet particulate loading on fine particle collection efficiency, and pressure drop. Economic factors that will be considered are capital costs, energy … more
Date: December 1, 1989
Creator: Helfritch, D.J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Development of advanced NO sub x control concepts for coal-fired utility boilers

Description: Hybrid technologies for reduction of NO{sub x} emissions from coal fired utility boilers may offer greater levels of NO{sub x} control than the sum of the individual technologies, leading to more cost effective emissions control strategies. Energy and Environmental Research Corporation had developed a hybrid NO{sub x} control strategy involving two proprietary concepts which has the potential to meet the US Department of Energy's goal at a significant reduction in cost compared to existing tech… more
Date: December 23, 1991
Creator: Newhall, J.; England, G. & Seeker, W. R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Preliminary evaluation of an electromagnetic concept for simultaneous NO sub x /SO sub 2 removal

Description: Western Research Institute is developing concepts to use radio frequency (RF) energy to remove NO and SO{sub 2} from combustion flue gas. Char produced from the mild gasification of coal can be heated with RF energy to react with sulfur oxides and nitric oxide at low temperatures and pressures using RF energy to form carbon dioxide, carbon monoxide, elemental sulfur, and nitrogen.
Date: December 1, 1990
Creator: Grimes, R. W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

LIMB demonstration project extension

Description: The main objectives of this project are: (1) To demonstrate the general applicability of Limestone Injection Multistage Burner (LIMB) technology by testing 3 coals and 4 sorbents (total of 12 coal/sorbent combinations) at the Ohio Edison Edgewater Plant. (2) To demonstrate that Coolside is a viable technology for improving precipitator performance and reducing sulfur dioxide emissions while acceptance operability is maintained. During the past quarter, activities for phase I, design and permitt… more
Date: December 16, 1991
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Binding and catalytic reduction of NO by transition metal aluminosilicates

Description: The objective of this research is to provide the scientific understanding of processes that actively and selectively reduce NO in dilute exhaust streams, as well as in concentrated streams, to N{sub 2}. Experimental studies of NO chemistry in transition metal-containing aluminosilicate catalysts are being carried out with the aim of determining the chemical rules for NO reduction on non- precious metals. The catalysts supports chosen for this investigation are A and Y zeolites, mordenite, and m… more
Date: December 1, 1991
Creator: Klier, Kamil; Herman, Richard G. & Hou, Shaolie
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Development of advanced NO sub x control concepts for coal-fired utility boilers

Description: Energy and Environmental Research Corporation (EER) is currently conducting a test program to develop an advanced NO{sub x} control method utilizing reburning, promoted selective noncatalytic agent injection. The study will consist of fundamental and process testing over a large enough range of operating parameters to significantly reduce the risk of a full scale demonstration project. The test plan for the fundamental testing phase of the program is presented here.
Date: December 23, 1991
Creator: Newhall, J.; England, G. & Seeker, W. R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Environmental control implications of generating electric power from coal. 1977 technology status report. Appendix A, Part 1. Coal preparation and cleaning assessment study

Description: This report evaluates the state of the art and effectiveness of physical coal cleaning as a potential strategy for controlling SO/sub x/ emissions in coal fired power generation. Coal properties which are significantly altered by physical coal cleaning were determined. The effects of the changes in properties as they relate to pulverized coal firing, fluidized bed combustion and low Btu gasification for combined cycle powered generation were studied. Available coal washability data were integra… more
Date: December 1, 1977
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Environmental control implications of generating electric power from coal. 1977 technology status report. Appendix D. Assessment of NO/sub x/ control technology for coal fired utility boilers. [Low-excess-air, staged combustion, flu gas recirculation and burner design]

Description: An NOx control technology assessment study was conducted to examine the effectiveness of low-excess-air firing, staged combustion, flue gas recirculation, and current burner/boiler designs as applied to coal-fired utility boilers. Significant variations in NOx emissions exist with boiler type, firing method, and coal type, but a relative comparison of emissions control performance, cost, and operational considerations is presented for each method. The study emphasized the numerous operational f… more
Date: December 1, 1977
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Nitration of polynuclear aromatic hydrocarbons in coal combustors and exhaust streams

Description: Regarding PAH preparation, our efforts this quarter were directed at identifying the operating conditions in the laboratory furnace that clearly resolve primary devolatilization from secondary pyrolysis. In previous studies, pristine tars from primary devolatilization were prepared in the radiant coal flow experiment with a furnace length of only 5 cm. Tars at various extents of secondary pyrolysis were generated in a hot-zone of 12.5 cm. For this project we decided to try to prepare both kinds… more
Date: December 1, 1992
Creator: Yu, L.; Dadamio, J.; Hildemann, L. & Niska, S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The kinetics of sulfation of calcium oxide

Description: Studies of the sulfation rate behavior show an initial fast rate followed by a rate decrease. This behavior has generally been interpreted as product layer diffusion limitations taking over after an initial kinetic rate regime. Many investigators tried to model this observed rate change. As pore diffusion was a limiting phenomenon in most of the experiments, authors have used several pore models to described this complication, more or less successfully. Product layer diffusivity has been assume… more
Date: December 29, 1989
Creator: Sarofim, A. F. & Longwell, J. P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Enhancing the use of coals by gas reburning-sorbent injection

Description: The objective of this project is to demonstrate gas reburning-sorbent injection (GR-SI) emission control technology on three pre-NSPS coal-fired utility boilers in Illinois. The goals are to achieve NO{sub x} and SO{sub x} emission reductions of 60 and 50% respectively. During this quarter, work progressed on all tasks of this project, except for Task 3, Engineering Design, which awaits NEPA approval. The selection of the three primary host sites was confirmed through site characterization and … more
Date: December 15, 1987
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Assessment of the once-through cooling alternative for central steam-electric generating stations

Description: The efficacy of the disposal of waste heat from steam-electric power generation by means of once-through cooling systems was examined in the context of the physical aspects of water quality standards and guidelines for thermal discharges. Typical thermal standards for each of the four classes of water bodies (rivers, lakes, estuaries, and coastal waters) were identified. The mixing and dilution characteristics of various discharge modes ranging from simple, shoreline surface discharges to long,… more
Date: December 1, 1978
Creator: Paddock, R. A. & Ditmars, J. D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Nitrogen oxide abatement by distributed fuel addition

Description: A screening study was performed on a laboratory scale downfired combustor to determine the effect of various variables on the effectiveness of the reburning process as a technique for NO{sub x} abatement. The objective was to define optimum conditions under which reburning can be used and to be able to compare the reburning performance of our combustor to those reported by others. For this purpose, a statistically designed parametric investigation was conducted to determine how a set of control… more
Date: December 27, 1988
Creator: Wendt, J. O. L. & Mereb, J. B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Electro-catalytic Reduction of Nitrogen Oxides

Description: Nitrogen oxides have been linked to a broad range of air pollution problems including acid rain and the atmospheric production of photochemical ozone. Over twenty million tons of nitrogen oxides are emitted into the atmosphere each year as a result of the high temperature combustion of fossil fuels. Efforts to control nitrogen oxides emissions have lagged because of the generally low discharge concentrations of nitrogen oxides in combustion exhaust and because nitrogen oxides are more difficult… more
Date: December 1, 1989
Creator: McLarnon, Christopher R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Environmental control implications of generating electric power from coal. 1977 technology status report. [300 references]

Description: This report is an in-depth review and analysis of particulate control technologies applicable to coal-fired utility boilers. Sources and characteristics of fly ash, applicable emission regulations, and measurement techniques are also discussed. Available control technologies (electrostatic precipitators, fabric filters, and wet scrubbers) are described in detail. In each case, the theory of operation, factors affecting performance, representative installations, costs, and secondary environmenta… more
Date: December 1, 1977
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Environmental control implications of generating electric power from coal. 1977 technology status report. Appendix F. Flue gas desulfurization in the United States, 1977. [108 references]

Description: This report details the current status of flue gas desulfurization (FGD) in conventional coal-fired power plants in the U.S. Sepecifications and features are listed for all commercial FGD installations now in operation or being constructed in this country. The FGD operational experience in each plant is summarized and evaluations are made of process, equipment, and operational performance. FGD in other countries, mainly Japan and West Germany, is reviewed for applicability in the U.S. Federal a… more
Date: December 1, 1977
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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