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Separation of Fischer-Tropsch Wax Products from Ultrafine Iron Catalyst Particles

Description: A fundamental filtration study was started to investigate the separation of Fischer-Tropsch Synthesis (FTS) liquids from iron-based catalyst particles. Slurry-phase FTS in slurry bubble column reactor systems is the preferred mode of operation since the reaction is highly exothermic. Consequently, heavy wax products in one approach may be separated from catalyst particles before being removed from the reactor system. Achieving an efficient wax product separation from iron-based catalysts is one… more
Date: December 31, 2006
Creator: Sarkar, Amitava; Neathery, James K. & Davis, Burtron H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Demonstration of Technology for the Production of High Value Materials from the Ultra-Fine (PM 2.5) Fraction of Coal Combustion Ash

Description: Three types of chemically and functionally different thermoplastic polymers have been chosen for evaluation with the fly ash derived filler: high density polyethylene (HDPE), thermoplastic elastomer (TPE) and polyethylene terephthalate (PET). The selections were based on volumes consumed in commercial and recycled products. The reference filler selected for comparison was 3 {micro}m calcium carbonate, a material which is commonly used with all three types of polymers. A procedure to prepare fil… more
Date: July 20, 2006
Creator: Perrone, R. S.; Groppo, J. G. & Robl, T. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Carbon Sequestration on Surface Mine Lands

Description: The first quarter of 2004 was dedicated to tree planting activities in two locations in Kentucky. During the first year of this project there was not available mine land to plant in the Hazard area, so 107 acres were planted in the Martin County mine location. This year 120 acres were planted in the Hazard area to compensate for the prior year and an additional 57 acres were planted on Peabody properties in western Kentucky. Additional sets of special plots were established on each of these are… more
Date: November 30, 2004
Creator: Graves, Donald H.; Barton, Christopher; Koo, Bon Jun; Sweigard, Richard & Warner, Richard
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Analysis of Devonian Black Shales in Kentucky for Potential Carbon Dioxide Sequestration and Enhanced Natural Gas Production

Description: Carbonaceous (black) Devonian gas shales underlie approximately two-thirds of Kentucky. In these shales, natural gas occurs in the intergranular and fracture porosity and is adsorbed on clay and kerogen surfaces. This is analogous to methane storage in coal beds, where CO2 is preferentially adsorbed, displacing methane. Black shales may similarly desorb methane in the presence of CO2. Drill cuttings from the Kentucky Geological Survey Well Sample and Core Library were sampled to determine both … more
Date: September 30, 2005
Creator: Nuttall, Brandon C.; Eble, Cortland F.; Drahovzal, James A. & Bustin, R. Marc
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Advanced Gasification By-Product Utilization

Description: With the recent passing of new legislation designed to permanently cap and reduce mercury emissions from coal-fired utilities, it is more important than ever to develop and improve upon methods of controlling mercury emissions. One promising technique is carbon sorbent injection into the flue gas of the coal-fired power plant. Currently, this technology is very expensive as costly commercially activated carbons are used as sorbents. There is also a significant lack of understanding of the inter… more
Date: February 1, 2006
Creator: Andrews, Rodney; Rubel, Aurora; Groppo, Jack; Geertsema, Ari; Huggins, Frank; Maroto-Valer, M. Mercedes et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Magnetism in Non-Traditional Materials

Description: We performed a systematic microscopic investigation of two completely dissimilar materials (namely, ZnO and rhombohedral-C{sub 60} polymers) exhibiting ferromagnetism in the presence of defects, and showed that this new phenomena has a common origin and the mechanism responsible can be used as a powerful tool for inducing and tailoring magnetic features in systems which are not magnetic otherwise. Based on our findings we proposed a general recipe for developing ferromagnetism in new materials … more
Date: September 17, 2013
Creator: Menon, Madhu
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Carbon Sequestration on Surface Mine Lands

Description: Since the implementation of the federal Surface Mining Control and Reclamation Act of 1977 (SMCRA) in May of 1978, many opportunities have been lost for the reforestation of surface mines in the eastern United States. Research has shown that excessive compaction of spoil material in the backfilling and grading process is the biggest impediment to the establishment of productive forests as a post-mining land use (Ashby, 1998, Burger et al., 1994, Graves et al., 2000). Stability of mine sites was… more
Date: March 31, 2006
Creator: Graves, Donald; Barton, Christopher; Sweigard, Richard; Warner, Richard & Agouridis, Carmen
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Advanced Gasification By-Product Utilization

Description: With the passing of legislation designed to permanently cap and reduce mercury emissions from coal-fired utilities, it is more important than ever to develop and improve upon methods of controlling mercury emissions. One promising technique is carbon sorbent injection into the flue gas of the coal-fired power plant. Currently, this technology is very expensive as costly commercially activated carbons are used as sorbents. There is also a significant lack of understanding of the interaction betw… more
Date: August 31, 2006
Creator: Andrews, Rodney; Rubel, Aurora; Groppo, Jack; Marrs, Brock; Geertsema, Ari; Huggins, Frank et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Development of Advanced Surface Enhancement Technology for Decreasing Wear and Corrosion of Equipment Used for Mineral Processing

Description: Equipment wear is a major concern in the mineral processing industry, which dramatically increases the maintenance cost and adversely affects plant operation efficiency. In this research, wear problems of mineral processing equipment including screens, sieve bends, heavy media vessel, dewatering centrifuge, etc., were identified. A novel surface treatment technology, high density infrared (HDI) surface coating process was proposed for the surface enhancement of selected mineral processing equip… more
Date: August 1, 2004
Creator: Tao, Daniel & Blue, Craig A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

A study of the interfacial chemistry of pyrite and coal in fine coal cleaning using flotation

Description: Surface oxidation, surface charge, and flotation properties have been systematically studied for coal, coal-pyrite and ore-pyrite. Electrochemical studies show that coal-pyrite exhibits much higher and more complex surface oxidation than ore-pyrite and its oxidation rate depends strongly on the carbon/coal content. Flotation studies indicate that pyrites have no self-induced floatability. Fuel oil significantly improves the floatability of coal and induces considerable flotation for coal-pyrite… more
Date: December 31, 1993
Creator: Jiang, C.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries Government Documents Department
open access

High-volume, high-value usage of Flue Gas Desulfurization (FGD) by-products in underground mines. Phase 1 -- Laboratory Investigations. Quarterly report, January 1995--March 1995

Description: The study of the kinetics of the mineral transformations which take place after the FGD materials are hydrated was continued this quarter (Task 2, Subtask 2.2). Based on X-ray diffraction data, the anhydrite was found to have essentially disappeared by the fifth day of the study, while gypsum was found to maximize in the first 14 days of the study. The relative abundance of ettringite increased throughout the period of observation (40 days). Ettringite was found to nucleate primarily on or near… more
Date: June 1995
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The mechanism of hydrogen incorporation in coal liquefaction. Final report

Description: The purpose of the research was to determine the detailed molecular mechanism for the introduction of hydrogen into coal when it is heated in an atmosphere of H{sub 2} in the absence of catalysts and to use this information as a baseline for the study of catalyzed processes. The plan was to study the reaction of model compounds with D{sub 2} in a glass-lined reactor of the authors` design and, by determining the distribution of D atoms in the reaction products, to deduce the reaction mechanism(… more
Date: November 1995
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Advanced direct liquefaction concepts for PETC generic units. Final report, Phase I

Description: The Advanced Concepts for Direct Coal Liquefaction program was initiated by the Department of Energy in 1991 to develop technologies that could significantly reduce the cost of producing liquid fuels by the direct liquefaction of coal. The advanced 2-stage liquefaction technology that was developed at Wilsonville over the past 10 years has contributed significantly toward decreasing the cost of producing liquids from coal to about $33/bbl. It remains, however, the objective of DOE to further re… more
Date: March 1995
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Advanced direct liquefaction concepts for PETC generic units phase II. Quarterly technical progress report, April--June 1996

Description: A catalyst screening test (CST) was developed to evaluate the activity of various catalyst precursors for their liquefaction activity in a solvent comprising the solids-free components of a recycle solvent generated at Wilsonville, namely a ROSE SR V-130 deashed resid from period A and V-1074 heavy distillate from period B. Since the deashed resid has an elemental composition very nearly the same distillate from period B. Since the deashed resid has an elemental composition very nearly the same… more
Date: August 1996
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Kentucky DOE EPSCoR Program

Description: The KY DOE EPSCoR Program supports two research clusters. The Materials Cluster uses unique equipment and computational methods that involve research expertise at the University of Kentucky and University of Louisville. This team determines the physical, chemical and mechanical properties of nanostructured materials and examines the dominant mechanisms involved in the formation of new self-assembled nanostructures. State-of-the-art parallel computational methods and algorithms are used to overc… more
Date: September 13, 2011
Creator: Grulke, Eric & Stencel, John
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Environmental Remediation Science at Beamline X26A at the National Synchrotron Light Source- Final Report

Description: The goal of this project was to provide support for an advanced X-ray microspectroscopy facility at the National Synchrotron Light Source, Brookhaven National Laboratory. This facility is operated by the University of Chicago and the University of Kentucky. The facility is available to researchers at both institutions as well as researchers around the globe through the general user program. This facility was successfully supported during the project period. It provided access to advanced X-ray … more
Date: November 7, 2013
Creator: Bertsch, Paul
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

C1 Chemistry for the Production of Ultra-Clean Liquid Transportation Fuels and Hydrogen

Description: Professors and graduate students from five universities--the University of Kentucky, University of Pittsburgh, University of Utah, West Virginia University, and Auburn University--are collaborating in a research program to develop C1 chemistry processes to produce ultra-clean liquid transportation fuels and hydrogen, the zero-emissions transportation fuel of the future. The feedstocks contain one carbon atom per molecular unit. They include synthesis gas (syngas), a mixture of carbon monoxide a… more
Date: March 30, 2006
Creator: Huffman, Gerald P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Separation of Fischer-Tropsch Wax Products from Ultrafine Iron Catalyst Particles

Description: The morphological and chemical nature of ultrafine iron catalyst particles (3-5 nm diameters) during activation/FTS was studied by HRTEM, EELS, and Moessbauer spectroscopy. With the progress of FTS, the carbide re-oxidized to magnetite and catalyst activity gradually decreased. The growth of oxide phase continued and average particle size also increased simultaneously. The phase transformation occurred in a ''growing oxide core'' manner with different nano-zones. The nano-range carbide particle… more
Date: March 31, 2006
Creator: Neathery, James K.; Jacobs, Gary; Sarkar, Amitava & Davis, Burtron H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Development of Advanced Surface Enhancement Technology for Decreasing Wear and Corrosion of Equipment Used for Mineral Processing

Description: Equipment wear is a major concern in the mineral processing industry, which dramatically increases the maintenance cost and adversely affects plant operation efficiency. In this research, a novel surface treatment technology, laser surface engineering (LSE) surface coating process was proposed for the surface enhancement of selected mineral processing equipment. Microstructural and mechanical properties of the coated specimen were characterized. Laboratory-simulated wear tests were conducted to… more
Date: August 1, 2005
Creator: Tao, Daniel & Blue, Craig A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Advanced Gasification by-Product Utilization

Description: The results of laboratory investigations and supporting technical assessments conducted under DOE Subcontract No. DE-FG26-03NT41795 are reported for the period September 1, 2003 to August 31, 2004. This contract is with the University of Kentucky Research Foundation, which supports work with the University of Kentucky Center for Applied Energy Research and The Pennsylvania State University Energy Institute. The worked described was part of a project entitled ''Advanced Gasification By-Product U… more
Date: April 2005
Creator: Andrews, Rodney; Rubel, Aurora; Groppo, Jack; Geertsema, Ari; Maroto-Valer, M. Mercedes; Lu, Zhe et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Advanced Direct Liquefaction Concepts for PETC Generic Units

Description: The results of Laboratory and Bench-Scale experiments and supporting technical and economic assessments conducted under DOE Contract No. DE-AC22-91PC91040 are reported for the period April 1, 2001 to June 30 2001. This work involves the introduction into the basic two-stage liquefaction process several novel concepts, which include dispersed lower-cost catalysts, coal cleaning by oil agglomeration, and distillate hydrotreating and dewaxing. This project has been modified to include an investiga… more
Date: August 2001
Creator: Berkovich, Adam J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

C1 Chemistry for the Production of Ultra-Clean Liquid Transportation Fuels and Hydrogen

Description: The Consortium for Fossil Fuel Science (CFFS) is a research consortium with participants from the University of Kentucky, University of Pittsburgh, University of Utah, West Virginia University, and Auburn University. The CFFS is conducting a research program to develop C1 chemistry technology for the production of clean transportation fuel from resources such as coal and natural gas, which are more plentiful domestically than petroleum. The processes under development will convert feedstocks co… more
Date: September 30, 2003
Creator: Huffman, Gerald P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Analysis of Devonian Black Shales in Kentucky for Potential Carbon Dioxide Sequestration and Enhanced Natural Gas Production Quarterly Report: October-December 2002

Description: Proposed carbon management technologies include geologic sequestration of CO{sub 2}. A possible, but untested, strategy is to inject CO{sub 2} into organic-rich shales of Devonian age. Devonian black shales underlie approximately two-thirds of Kentucky and are generally thicker and deeper in the Illinois and Appalachian Basin portions of Kentucky. The Devonian black shales serve as both the source and trap for large quantities of natural gas; total gas in place for the shales in Kentucky is est… more
Date: February 11, 2003
Creator: Nuttall, Brandon C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

POC-scale testing of an advanced fine coal dewatering equipment/technique. Quarterly technical progress report, April 1996--June 1996

Description: Froth flotation technique is an effective and efficient process for recovering of ultra-fine (minus 74 {mu}m) clean coal. Economical dewatering of an ultra-fine clean coal product to a 20 percent level moisture will be an important step in successful implementation of the advanced cleaning processes. This project is a step in the Department of Energy`s program to show that ultra-clean coal could be effectively dewatered to 20 percent or lower moisture using either conventional or advanced dewat… more
Date: July 31, 1996
Creator: Tao, D.; Groppo, J. G. & Parekh, B. K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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