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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 two coal fired utility boilers in Illinois. The units selected are representative of pre-NSPS design practices: tangential and cyclone fired. Work on a third unit, wall fired, has been stopped because of funding limitations. The specific objectives are to demonstrate reductions of 60 percent in NO{sub x} and… more
Date: October 14, 1991
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Fundamental investigation of duct/ESP phenomena

Description: Radian Corporation was contracted to investigate duct injection and ESP phenomena in a 1.7 MW pilot plant constructed for this test program. This study was an attempt to resolve problems found in previous studies and answer remaining questions for the technology using an approach which concentrates on the fundamental mechanisms of the process. The goal of the study was to obtain a better understanding of the basic physical and chemical phenomena that control: (1) the desulfurization of flue gas… more
Date: October 21, 1991
Creator: Brown, C.A. (Radian Corp., Austin, TX (United States)); Durham, M.D. (ADA Technologies, Inc., Englewood, CO (United States)); Sowa, W.A. (California Univ., Irvine, CA (United States). Combustion Lab.); Himes, R.M. (Fossil Energy Research Corp., Laguna Hills, CA (United States)) & Mahaffey, W.A. (CHAM of North America, Inc., Huntsville, AL (United States))
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Theoretical approach for enhanced mass transfer effects in duct flue gas desulfurization processes

Description: Novel techniques designed for the enhancement of Ca(OH){sub 2} utilization in dry-sorbent injection (DSI) and duct-spray drying (DSD) were investigated in the Long Time Differential Reactor (LTDR), Short Time Differential Reactor (STDR), and 50-cfm pilot plant. At 2000-ppm SO{sub 2} and 60 percent relative humidity, the presence of up to 30-percent initial free moisture significantly increased sorbent reactivity with SO{sub 2}, compared to sorbent with equilibrium amount of moisture. The conver… more
Date: September 17, 1991
Creator: Jozewicz, Wojciech (Acurex Corp., Research Triangle Park, NC (United States). Environmental Systems Div.) & Rochelle, G.T. (Texas Univ., Austin, TX (United States). Dept. of Chemical Engineering)
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Indoor air quality environmental information handbook: Combustion sources

Description: This environmental information handbook was prepared to assist both the non-technical reader (i.e., homeowner) and technical persons (such as researchers, policy analysts, and builders/designers) in understanding the current state of knowledge regarding combustion sources of indoor air pollution. Quantitative and descriptive data addressing the emissions, indoor concentrations, factors influencing indoor concentrations, and health effects of combustion-generated pollutants are provided. In addi… more
Date: June 1, 1990
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Carbon dioxide power plant for total emission control and enhanced oil recovery. [Removal, storage, and use of CO/sub 2/]

Description: The design of a compact environmentally acceptable carbon dioxide diluted coal-oxygen fired power plant is described. The plant releases no combustion products to the atmosphere. The oxygen for combustion is separated in an air liquefaction plant and the effluent nitrogen is available for use in oil well production. Recycle carbon dioxide mixed with oxygen replaces the nitrogen for the combustion of coal in the burners. The carbon dioxide produced is used in enhanced oil recovery operations and… more
Date: August 1, 1981
Creator: Horn, F L & Steinberg, M
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Thermal stabilization of uranium mill tailings

Description: The sintering of tailings at high temperatures (1200/sup 0/C) has shown promise as a conditioning approach that greatly reduces the /sup 222/Rn emanation of uranium mill tailings. The structure of thermally stabilized tailings has been appreciably altered producing a material that will have minimal management requirements and will be applicable to on-site processing and disposal. The mineralogy of untreated tailings is presented to define the structure of the original materials. Quartz predomin… more
Date: January 1, 1981
Creator: Dreesen, D.R.; Williams, J.M. & Cokal, E.J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Value of forestation in absorbing carbon dioxide surrounding a coal fired power plant

Description: The dispersion of carbon dioxide emitted from 1000 MW(e) coal fired power plant is investigated. Calculated ground level carbon dioxide concentrations as a function of distance from the power plant stack is validated by the results derived from sulfur dioxide dispersion measurements. Forestation is examined as a means for removal and control of atmospheric carbon dioxide at a distance of 5 to 10 km away from the power plant stack. An equilibrium and a dynamic approach are considered. For an ave… more
Date: August 1, 1980
Creator: Dang, V.D. & Steinberg, M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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An investigation of the mechanisms of calcination and sulfation in coal-water mixtures

Description: The purpose of this investigation is to study the mechanisms of sulfur capture when burning coal-water-limestone mixtures (CWLM) in fluidized beds. Special care is taken to make comparisons with to dry coal and sorbent under comparable experimental conditions. A series of experiments were performed in an eight-inch diameter bubbling fluidized bed combustor to address this problem. 33 refs., 17 figs., 5 tabs.
Date: September 21, 1990
Creator: Christofides, N.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Global approach for enhanced mass transfer effects: In-duct injection FGD processes

Description: This topical report describes the experimental results from a global investigation of in-duct SO{sub 2} capture by lime-slurry sprays. To large extent the experiments were guided by a parallel model-development effort. The data were used to test and refine various assumptions made by the model about internal vs. external mass transfer, temperature, humidity, SO{sub 2} concentration and slurry concentration. Also, the experiments performed a scoping function for the overall DOE duct injection pr… more
Date: May 1, 1990
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Applicability of Japanese NO/sub x/ control in the US

Description: This report surveys the status of NO/sub x/ control for stationary sources in Japan and analyzes applicability of the technology in the US. The principal control methods used in Japan are combustion modification and catalytic reduction using ammonia as the reducing agent. Noncatalytic reduction with ammonia is used to a limited degree. Wet scrubbing methods have been tested but are so unpromising that the development work has practically stopped. The combustion modification developments are app… more
Date: February 1, 1980
Creator: Slack, A.V.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Secondary economic impact of acid deposition control legislation in six coal producing states: Final report

Description: Among the difficult policy questions on the US environmental agenda is what to do about emissions to the earth's atmosphere of pollutants that may result in ''acid rain''. The Congress has considered several pieces of legislation spelling out potential approaches to the problem and setting goals for emission reduction, mostly emphasizing the control of oxides of sulfur and nitrogen. Significant policy concern is the dollar costs to the nation's economy of achieving… more
Date: December 1, 1988
Creator: Scott, M. J. & Guthrie, S. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Powerplant and Industrial Fuel Use Act annual report

Description: This annual report was prepared for the Congress by the Secretary of the Department of Energy (DOE) in conjunction with the Acting Administrator of the Environmental Protection Agency (EPA) as required by Section 806 of the Powerplant and Industrial Fuel Use Act of 1978 (FUA), Public Law 95-620, enacted November 9, 1978. This annual report describes actions taken under the legislation, which was enacted to promote national energy self-sufficiency and encourage the use of the alternate energy re… more
Date: March 1, 1981
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Indoor Environment Program. 1992 Annual Report

Description: This paper reports progress during the year 1992 in the Indoor Environment Program in the Energy and Environment Division of Lawrence Berkeley Laboratory. Studies in the following areas are reported: energy performance and ventilation in buildings; physical and chemical characterization of indoor air pollutants; indoor radon; indoor air quality; exposure to indoor air pollutants and risk analysis. Pollutants of particular interest include: radon; volatile, semi-volatile and particulate organic … more
Date: June 1, 1993
Creator: Daisey, J. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Coal reburning for cyclone boiler NO sub x control demonstration

Description: Babcock Wilcox engineering studies followed by pilot-scale testing has developed/confirmed the potential of utilizing gas, oil or coal reburning as a viable NO{sub x} reduction technology. To date, two US sponsored programs promote natural gas/oil as a reburning fuel because it was believed that gas/oil will provide significantly higher combustion efficiency than using coal at the reburn zone. Although B W has shown that gas/oil reburning will play a role in reducing NO{sub x} emissions from cy… more
Date: January 1, 1992
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The kinetics of sulfation of calcium oxide

Description: The objectives of this study are to determine the intrinsic kinetics and the product layer diffusion rate by minimizing the resistances to gas-phase pore diffusion, and eliminating complications due to pore filling. In the report, a grain model was used to introduce the various potentially rate-limiting processes. It was compared with results obtained with a distributed pore model by Bhatia Perlmutter (1981). Comparing the predicted behavior of the surface areas with conversion, it was even pos… more
Date: March 28, 1990
Creator: Sarofim, A. F. & Longwell, J. P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Approach to valuing visual pollution from Western Electricity Production. [For Western Systems Coordinating Council area]

Description: This paper outlines an approach to valuing visual pollution from electric power plants. The differences between public-good pollution externalities, such as these aesthetic damages, and other market failures are discussed. Approaches generally used to value externalities are briefly described. The approach used relies heavily on an earlier application of bidding games to estimate people's willingness to pay for abatement of emissions from the Four Corners fossil-fuel power plant in northwestern… more
Date: February 1, 1977
Creator: Erickson, L. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The kinetics of sulfation of calcium oxide

Description: Studies of the sulfation rate behavior show an initial fast rate followed by a rate decrease. It is generally agreed that product layer diffusion limitations are the explanation for this behavior. Many investigators tried to model this observed rate change, more or less successfully. No agreement has been reached, however, as to the value of the produce layer diffusivity. Hence, in this work we want to investigate the mechanism of this process. In addition to understanding the initial kinetics,… more
Date: January 1, 1989
Creator: Sarofim, A. F. & Longwell, J. P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Test plan for the retrieval demonstration

Description: This test plan describes a simulated buried waste retrieval demonstration that will be performed at the Caterpillar, Inc., Edwards Training Center located near Peoria, Illinois. The purpose of the demonstration is to determine the effectiveness of using readily available excavation equipment to retrieve, size, and handle various simulated waste forms that are similar in size, structure, and composition to those expected to be found in US Department of Energy contaminated waste pits and trenches… more
Date: May 1, 1993
Creator: Valentich, D. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Development of a reburning boiler process model

Description: The overall objective of this program is to integrate Energy and Environmental Research expertise in boiler reburning performance evaluation into a package of analytical computer tools. Specific objectives of the program are to develop a computational capability with the following features: (a) can be used to predict the impact of gas reburning application on thermal conditions in the boiler radiant furnace, and on overall boiler performance. (b) can estimate gas reburning NO{sub x} reduction e… more
Date: April 30, 1992
Creator: Wu, K. T.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Environmental Control Technology for the Flash Hydropyrolysis of Coal. Quarterly Progress Report No. 1, June 20, 1977--September 30, 1977

Description: The subject program pertains to the assessment and control of potential pollutants from Brookhaven National Laboratory's Flash Hydropyrolysis of Coal Process (FHP) and from related coal liquefaction processes currently under development at Rocketdyne, Cities Service, IGT, and CCNY. Data obtained from the experimental FHP unit currently in operation at BNL will provide the primary basis for our analysis; however, we will attempt to extend and generalize our findings and conclusions by reviewing … more
Date: October 1, 1977
Creator: Steinberg, M. & Albanese, A. S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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An investigation to define the physical/chemical constraints which limit NO sub x emission reduction achievable by reburning

Description: Reburning is a combustion modification technique which removes NO{sub x} from combustion products by using fuel as a reducing agent. Previous studies have shown that natural gas is more effective than coal as a reburning fuel. Objectives of this program are to define the chemical and physical constraints which prevent the attainment of 80% NO{sub x} reduction with reburning and to test improved configurations for reburning as an advanced NO{sub x} control technique for coal-fired boilers. Bench… more
Date: January 1, 1989
Creator: Chen, S. L.; Ho, L. & Pershing, D. W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Engineering development of advanced coal-fired low-emission boiler system

Description: The Pittsburgh Energy Technology Center of the US Department of Energy (DOE) has contracted with Combustion Engineering, Inc. (ABB CE) to perform work on the Engineering Development of Advanced Coal-Fired Low-Emission Boiler Systems'' Project and has authorized ABB CE to complete Phase I on a cost-reimbursable basis. The overall objective of the Project is the expedited commercialization of advanced coal-fired low-emission boiler systems. The specified primary objectives are: NO[sub x] emission… more
Date: February 26, 1993
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Homogeneous chemistry of NO/sub x/ production and removal from fossil fuel combustion gases. Final technical report

Description: The reduction of NO/sub x/ emissions from stationary combustion sources by non-catalytic homogeneous chemical addition is a promising technique. Demonstrations in laboratory experiments and on a number of field scale combustors have shown that the addition of ammonia to the exhaust flow significantly reduces the NO concentrations in a narrow temperature range. This report summarizes the work performed to understand the detailed chemical mechanism which makes this reduction occur. A model descri… more
Date: November 1, 1980
Creator: Silver, J.A.; Gozewski, C.M. & Kolb, C.E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

An investigation to define the physical/chemical constraints which limit NO sub x emission reduction achievable by reburning

Description: Reburning is a combustion modification technique which removes NO{sub x} from combustion products by using fuel as a reducing agent. Previous studies have shown that natural gas is more effective than coal as a reburning fuel. Objectives of this program are to define the chemical and physical constraints which prevent the attainment of 80% NO{sub x} reduction with reburning and to test improved configurations for reburning as an advanced NO{sub x} control technique for coal-fired boilers. Bench… more
Date: June 1, 1989
Creator: Chen, S. L.; Ho, L. & Seeker, W. R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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