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Development of a high-performance coal-fired power generating system with pyrolysis gas and char-fired high temperature furnace (HITAF)

Description: A concept for an advanced coal-fired combined-cycle power generating system is currently being developed. The first phase of this three-phase program consists of conducting the necessary research and development to define the system, evaluating the economic and technical feasibility of the concept, and preparing an R D plan to develop the concept further. The power generating system being developed in this project will be an improvement over current coal-fired systems. Goals have been specified… more
Date: February 1, 1993
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Chemistry of coal-related microparticles

Description: A new type of electrodynamic balance was designed, constructed and applied to the study of the chemistry of macerals and the chemical reaction between CaO sorbent particles and SO[sub 2]. The single-particle device was coupled to a Raman spectrometer. With this balance a single electrically charged microparticle is suspended in visible and infrared laser beams by means of superposed ac and dc electrical fields. The apparatus was designed to permit gas flow through the chamber so that gas-solid … more
Date: January 11, 1993
Creator: Davis, E.J. & Krieger-Brockett, B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Organometallic and surface chemistry of mixed-metal systems

Description: Three new SO[sub 2] complexes of metal cluster compounds were prepared: [PPN][HFe[sub 3](CO)[sub 9]SO[sub 2]], and [PPN][sub 2][Ru[sub 3]CO[sub 9]SO[sub 2]] and [PPN][sub 2][Ru[sub 3](CO)[sub 7](SO[sub 2])[sub 3]]. The x-ray structures were determined for two of these and the transformation of bound SO[sub 2] to duster bound SO and S ligands was investigated.
Date: April 1, 1993
Creator: Shriver, D.F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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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. 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 technologies, g… more
Date: April 15, 1993
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Confined zone dispersion flue gas desulfurization demonstration

Description: This is the sixth quarterly report for this project and it covers work performed on Phase 3a of the project from February 1, 1992 through April 30, 1992. Extension of the parametric test period through June 1992 provides an opportunity to regain most of the schedule slippage, but only if the modifications needed for continuous operation of the CZD system are installed concurrent with the extended test period. These modifications include automation of the lime preparation and transfer system, au… more
Date: January 15, 1993
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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A novel carbon-based process for flue gas cleanup

Description: The objective of this project is to demonstrate the preliminary technical and economic feasibility of a novel carbon-based process for removal of at least 95 % SO[sub 2], and at least 75 % NO[sub x] from coal combustion flue gas. In the process, flue gas leaving the electrostatic precipitator (ESP) is passed through a trickle bed of activated carbon catalyst employing a periodic flush of low strength sulfuric acid. The SO[sub 2] is oxidized to SO[sub 3] and removed as medium strength sulfuric a… more
Date: April 1993
Creator: Gangwal, S. K. & Silveston, P. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Process performance of Ahlstrom Pyroflow PCFB pilot plant

Description: Ahlstrom Pyropower has designed and built a 10 MW[sub th] (34 MMBtu) pressurized circulating fluidized bed (PCFB) pilot plant in Karhula, Finland. The unit is now operating. Data from this unit supports the design of a nominal 80 MW, Des Moines Energy Center 1 (DMEC-1) PCFB Repowering Project. The pilot plant PCFB combustor is of square cross-section. It is housed in a 3.6 m (11.8 ft) diameter pressure vessel. A high pressure high temperature gas cleaning unit downstream of the PCFB exhaust is … more
Date: May 1, 1993
Creator: Sellakumar, K.M. (R D Center, Ahlstrom Pyropower, Inc., San Diego, CA (United States)); Isaksson, J. & Tiensuu, J. (Ahlstroem Pyropower, Inc., Karhula (Finland). Hans Ahlstroem Lab.)
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Advanced separation technology for flue gas cleanup. [Hollow fibers]

Description: In the fourth quarter of 1992, we continued work on Tasks 2, 3, and 4. In Task 2, we continued preparation of the reversible absorption apparatus for measuring SO[sub 2] and NO[sub x] solubilities. We received and installed the gas cabinet necessary for safe handling of these gases and made several modifications to the reversible absorption apparatus aimed at reducing the time required for each measurement. We also began evaluating chromatography columns for their ability to separate SO[sub 2],… more
Date: January 1, 1993
Creator: Gottschlich, D.E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Examination of utility Phase 1 compliance choices and state reactions to Title IV of the Clean Air Act Amendments of 1990

Description: Title IV (acid rain) of the Clean Air Act Amendments of 1990 is imposing new limitations on the emission of sulfur dioxide (SO{sub 2}) and nitrogen oxides (N{sub x}) from electric power plants. The act requires utilities to develop compliance plans to reduce these emissions, and indications are that these plans will dramatically alter traditional operating procedures. A key provision of the SO{sub 2} control program deaned in Title IV is the creation of a system of emission allowances, with uti… more
Date: November 1, 1993
Creator: Bailey, K. A.; Elliott, T. J.; Carlson, L. J. & South, D. W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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High SO{sub 2} removal efficiency testing. Technical progress report, [1 July--30 September 1993]

Description: This document provides a discussion of the technical progress on DOE/PETC project number DE-AC22-92PC91338, {open_quotes}High Efficiency SO{sub 2} Removal Testing{close_quotes}, for the time period 1 July through 30 September, 1993. The project involves testing at six full-scale utility flue gas desulfurization (FGD) systems, to evaluate low capital cost upgrades that may allow these systems to achieve up to 98% SO{sub 2} removal efficiency. The upgrades to be evaluated primarily involve the ad… more
Date: October 28, 1993
Creator: Blythe, G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Concentration System Performance Degradation in the Aftermath of Mount Pinatubo

Description: Major volcanic eruptions occur every few years, but most have little effect on solar radiation or climate. However, in the last ten years two volcanoes have decreased solar radiation and influenced weather at a level that might be expected at the frequency of about once a century. The Mexican volcano El Chichon and the Philippine volcano Mount Pinatubo put 6 and 20 million metric tons of SO{sub 2} in the stratosphere, respectively. SO{sub 2} is converted into H{sub 2}SO{sub 4}, which mixes with… more
Date: November 1, 1993
Creator: Michalsky, J. J.; Perez, R.; Seals, R. & Ineichen, P.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Evaluation of gas-reburning and low NO{sub x} burners on a wall fired boiler. Technical progress report No. 12, July 1--September 30, 1993

Description: Clean Coal Technology (CCT) implies the use of coal in an environmentally acceptable manner. Coal combustion results in the emission of oxides of nitrogen (NO{sub x}), which are precursors of both acid rain and ozone formation. The primary objective of this CCT project is to evaluate the use of Gas Reburning and Low NO{sub x} Burners (GR-LNB) for NO{sub x} emission control from a wall fired boiler. It is anticipated that, if the demonstration is successful, the GR-LNB technology could become co… more
Date: October 15, 1993
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Coal-fired high performance power generating system. Quarterly progress report, April 1--June 30, 1993

Description: This report covers work carried out under Task 2, Concept Definition and Analysis, Task 3, Preliminary R&D and Task 4, Commercial Generating Plant Design, under Contract AC22-92PC91155, ``Engineering Development of a Coal Fired High Performance Power Generation System`` between DOE Pittsburgh Energy Technology Center and United Technologies Research Center. The goals of the program are to develop a coal-fired high performance power generation system (HIPPS) by the year 2000 that is capable of: … more
Date: November 1, 1993
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Emissions R&D at GE/CRD coal-fueled diesel: Technology development methods for SO{sub 2} and NO{sub x} removal from coal diesel exhaust

Description: Four processes were investigated at the GE Research and Development Center (GE-CRD) for the removal of gaseous pollutants from the exhaust of a coal-fired diesel locomotive engine. The minimum goal for emissions control was to reduce the pollutant levels at least to the levels of a conventional diesel engine. It should be noted, however, that some of the methods investigated were capable of reducing emissions below these levels. Achieving the minimum goal requires a reduction of approximately 5… more
Date: October 1, 1993
Creator: Cohen, M. R.; Leonard, G. L. & Slaughter, D. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Sonic enhanced ash agglomeration and sulfur capture. Technical progress report: January 1993--March 1993

Description: This 15th Quarterly Technical Progress Report presents the results of work accomplished during the period January 4, 193 through March 28, 1993 under Contract No. DE-AC21-88MC26288 entitled {open_quotes}Sonic Enhanced Ash Agglomeration and Sulfur Capture.{close_quotes} The fundamental studies conducted by West Virginia University and Pennsylvania State University are provided in subsections of this report. Shakedown testing continued through this period resulting in a series of required modific… more
Date: December 31, 1993
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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A novel carbon-based process for flue-gas cleanup. Final report

Description: A low-temperature process employing activated carbon-based catalysts and operating downstream of the electrostatic precipitator (ESP) was evaluated jointly by Research Triangle Institute (RTI) and the University of Waterloo (Waterloo). The RTI-Waterloo process was projected to be capable of removing more than 95% SO{sub 2} and 75% NO{sub x }from coal combustion flue gas. In the process, the flue gas leaving the ESP is first cooled to approximately 100{degree}C. The SO{sub 2} is then catalytical… more
Date: October 1, 1993
Creator: Gangwal, S. K.; Howe, G. B.; McMichael, W. J. & Spivey, J. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Control of coal combustion SO{sub 2} and NO{sub x} emissions by in-boiler injection of CMA. Fifth quarterly project status report, 1 October 1993--30 December 1993

Description: In this study the effectiveness of calcium magnesium acetate (CMA, CaMg{sub 2}(CH{sub 2}COOH){sub 6}) as an SO{sub 2} sorbent in pulverized coal combustion was assessed. Experiments were conducted in a laboratory-scale laminar flow furnace at temperatures (550--1250{degrees}C) and gas concentrations (1500--2000 ppM SO{sub 2}, 2--3% O{sub 2}) relevant to post-flame in-boiler sorbent injection systems. Tests were conducted at molar Ca/S ratios of 1 and 2 with dry injected particles that were abou… more
Date: December 31, 1993
Creator: Levendis, Y. A. & Wise, D. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Behavior of sulfur and chlorine in coal during combustion and boiler corrosion. Technical report, December 1, 1992--February 28, 1993

Description: The goals of this project is to investigate the behavior of sulfur and chlorine during pyrolysis and combustion of Illinois coals, the chemistry of boiler deposits and the process of ash formation, and remedial measures to reduce the sulfur and chlorine compounds in combustion gases. The chemistry of boiler deposits provides information about the behavior of sulfur, chlorine, and ash particles during coal combustion. We report results obtained during this quarter on mineralogical and chemical c… more
Date: May 1, 1993
Creator: Chou, C. L.; Hackley, K. C.; Cao, J.; Frost, R. R.; Ruch, R. R.; Pan, W. P. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Behavior of sulfur and chlorine in coal during combustion and boiler corrosion. Final technical report, 1 September, 1992--31 August, 1993

Description: The goals of this project are to investigate the behavior of sulfur and chlorine during pyrolysis and combustion of Illinois coals, the chemistry and mineralogy of boiler deposits, the effects of combustion gases on boiler materials, and remedial measures to reduce the sulfur and chlorine compounds in combustion gases. Replicate determinations of chlorine and sulfur evolution during coal pyrolysis-gas combustion were conducted using a pyrolysis apparatus in conjunction with a quadrupole gas ana… more
Date: December 31, 1993
Creator: Chou, C. L.; Hackley, K. C.; Cao, J.; Moore, D. M.; Xu, J.; Ruch, R. R. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Coal-fueled diesel emissions control technology development

Description: The objective of this project is to develop an emissions control system for a GE locomotive powered by a Coal Water Slurry (CWS) fuel diesel engine. The development effort is directed toward reducing particulate matter, SO{sub 2} and NO{sub x} emissions from the engine exhaust gas at 700--800F and 1-2 psig. The commercial system should be economically attractive while subject to limited space constraints. After testing various alternatives, a system composed of a barrier filter with sorbent inj… more
Date: March 1, 1993
Creator: Cook, C.; Gal, E.; Mengel, M. & Van Kleunen, W.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Plasma-assisted cleanup of flue gas. Final technical report, 1 September, 1992--31 August, 1993

Description: The objective of the proposed research is to design and implement a novel scheme for the combined removal of SO{sub 2} and NO{sub x} using a dielectric-barrier discharge in conjunction with UV irradiation. This investigation requires the design of a dielectric-barrier reactor and testing the proposed scheme under different conditions that exist in a flue gas. A reactor has been designed and electrical tests have been performed. The voltage characteristics of the plasma reactor has been studied.… more
Date: December 31, 1993
Creator: Dhali, S. K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Plasma-assisted cleanup of flue gas. Technical report, September 1, 1993--November 30, 1993

Description: In this project period, the system for the removal of SO{sub 2} and NO{sub x} is being studied in the presence of water vapor. Typical-mixtures being tested consist of 500--1500 parts per million SO{sub 2}, 4--6% H{sub 2}Og, 7--15% O{sub 2}, and the balance is nitrogen. We have to date seen only a reduction in SO{sub 2} in the order of 40%. This is lower than the in dry air. At present this low reduction is attributed to arcing the discharge. A computer simulation is being performed to calculat… more
Date: December 31, 1993
Creator: Dhali, S. K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Sorbent Utilization Studies Using a Mini-Pilot Spray Dryer. Final Report, 1 September 1992--31 August 1993

Description: The main body of the report consists of four parts: 1. additives to change process chemistry for SO{sub 2} absorption by Ca(OH){sub 2} slurry; 2. recycle tests and hydration of fly ash with Ca(OH){sub 2} to increase reactivity; 3. limestone as an alternative sorbent and additive effects; 4. physical and chemical model developments for some of the additive effects and spray dryer mathematical model application. As the concentration of SO{sub 2} in the flue gases increases, the SO{sub 2} removal … more
Date: September 30, 1993
Creator: Keener, T. C.; Khang, S. J.; Wang, J. & Sanders, J. F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Statement on global climate change before the Subcommittee on Energy and Power, United States House of Representatives

Description: Greenhouse gases are gases which are effectively transparent to incoming sunlight but absorb infrared radiation escaping to space and thereby warm the surface of the Earth. Human activities result in the release of greenhouse and related gases in such quantities that they are changing the composition of the atmosphere. Greenhouse and related gases which human activities release include carbon dioxide (CO{sub 2}), methane (CH{sub 4}) carbon monoxide (CO), nitrous oxide (N{sub 2}O), nitrogen oxid… more
Date: April 1, 1993
Creator: Edmonds, J. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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