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Pilot-Scale Testing of Sorbent Injection and Fuel Additives for Mercury Control
John H. Pavlish, Michael J. Holmes, Ye Zhuang, Kevin C. Galbreath, Steven A. Benson, and Brandon M. Pavlish
Aug 2004Pilot-scale tests were performed to evaluate potential sorbents (DARCO® FGD, HCl-treated FGD and EERC-treated FGD) and fuel additives (NaCl, CaCl2, and sorbent enhancement additive [SEA] 2) for removing Hg from North Dakota lignite (Freedom Mine) combustion flue gas.
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Process for Regenerating a Spent Sorbent
Brandon M. Pavlish, Michael J. Holmes, John H. Pavlish, and Edwin S. Olson
Jun 2004This paper focuses on development and results of sorbent regeneration technology that are intended to reduce the costs associated with using sorbents for mercury control.
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Surface Compositions of Carbon Sorbents Exposed to Simulated Low-Rank Coal Flue Gases
Charlene R. Crocker, Steven A. Benson, Edwin S. Olson, John H. Pavlish, and Michael J. Holmes
Jun 2003Bench-scale testing of elemental mercury sorption on selected activated carbon sorbents was conducted to develop a better understanding of the interaction between the sorbent, flue gas constituents, and elemental mercury.
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An Improved Model for Flue Gas-Mercury Interactions on Activated Carbons
Edwin S. Olson, Jason D. Laumb, Steven A. Benson, Grant E. Dunham, Ramesh K. Sharma, Blaise A.F. Mibeck, Stanley J. Miller, Michael J. Holmes, and John H. Pavlish
May 2003Part of our work has focused on elucidating the nature of the interactions between the mercury and the flue gas components on activated carbon surfaces, particularly the activated carbons derived from Texas (Norit FGD) and from Fort Union lignites (prepared at the EERC). This understanding is crucial to developing a model for mercury chemisorption and subsequent design of carbons with faster kinetics and greater capacities.
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Pilot-Scale Investigation of Mercury Control Technologies for Utilities Burning Lignite Coal (03-A-65-AWMA)
John H. Pavlish, Michael J. Holmes, Kevin C. Galbreath, Ye Zhuang, and Brandon M. Pavlish
May 2003The EERC recently completed the first phase of a 3-year, two-phase consortium project to develop and demonstrate mercury control technologies for utilities burning lignite coal.
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Sorbent Development for Control of Mercury Emissions from Utility Power Plants
Michael J. Holmes, John H. Pavlish, Stanley J. Miller, and Grant E. Dunham
Jun 2002This paper describes the most recent equipment and techniques used by the EERC in sorbent evaluations and summarizes sorbent performance results for carbon-and non-carbon-based sorbents as well as the interactions with flue gas constituents.
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Release of Mercury Vapor from Coal Combustion Ash
Loreal V. Heebink and David J. Hassett
Aug 2001The long-term stability of mercury in coal combustion by-products (CCBs) was evaluated at ambient and near-ambient temperatures.
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Effects of NOx and α-FE2O3 on Mercury Transformations in a 7-kW Coal Combustion System
Kevin C. Galbreath, Christopher J. Zygarlicke, Donald L. Toman, and Richard L. Schulz
Jun 2001In this investigation, the effects of NO2 and α-Fe2O3 on Hg speciation were evaluated by injecting them into coal combustion flue gases produced from burning bituminous, subbituminous, and lignitic coals in a 7-kW combustion system.
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Novel Catalytic Carbons for Mercury Sorption in Air
Edwin S. Olson and Ramesh K. Sharma
Jun 2000This paper reports further studies that evaluate the performance of granular catalytic carbon sorbent beds for capture of mercury under the conditions of very high mercury concentrations in air and as they are applied in the MRS technology. Evaluation of the regeneration capabilities was also performed.
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Controlling Mechanisms that Determine Mercury Sorbent Effectiveness
Stanley J. Miller, Grant E. Dunham, Edwin S. Olson, and Thomas D. Brown
Jun 1999This paper presents additional data on concentration effects of NO2 and SO2 that may help to explain the mechanisms by which these gases affect sorbent performance.