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Engineering development of advanced physical fine coal cleaning for premium fuel applications. Quarterly technical progress report 11, April--June, 1995

Description: The primary goal of this project is the engineering development of two advanced physical fine coal cleaning processes, column flotation and selective agglomeration, for premium fuel applications. The project scope includes laboratory research and bench-scale testing on six coals to optimize these processes, followed by design, and construction of a 2-t/hr process development unit (PDU). The PDU will then be operated to generate 200 tons of each of three project coals, by each process. During Qu… more
Date: July 31, 1995
Creator: Moro, Nick; Shields, Gene L.; Smit, Frank J. & Jha, Mahesh C.
Partner: UNT Libraries Government Documents Department
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A Kinetic Model for Conventional Flotation of Coal

Description: The U.S. Bureau of Mines has developed a computer model to 'describe a flotation process. Coal data from conventional flotation has been converted to a simple, two-parameter kinetic model developed by Reuter and van Deventer (j,2 3. Each set of coal data was represented by two constants, a and a, and an average flotation rate. The success of the model was demonstrated when the calculated and experimental recoveries showed good correlation. The two-parameter model allows complex data to be defin… more
Date: 1995
Creator: Susko, Frank J. & Stanley, Don A.
Partner: UNT Libraries Government Documents Department
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Engineering development of advanced physical fine coal cleaning for premium fuel applications. Quarterly technical progress report 13, October--December, 1995

Description: The primary goal of this project is the engineering development of two advanced physical fine coal cleaning processes, column flotation and selective agglomeration, for premium fuel applications. The project scope includes laboratory research and bench-scale testing on six coals to optimize these processes, followed by the design, construction, and operation of a 2-t/hr process development unit. During Quarter 13 (October--December 1995), testing of the GranuFlow dewatering process indicated a … more
Date: January 31, 1996
Creator: Moro, N.; Shields, G. L.; Smit, F. J. & Jha, M. C.
Partner: UNT Libraries Government Documents Department
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The low moisture eastern coal processing system at the UTSI-DOE Coal Fired Flow Facility

Description: A low moisture, eastern coal processing system was constructed at the Department of Energy`s Coal Fired Flow Facility (CFFF), located at the University of Tennessee Space Institute in Tullahoma, Tennessee, to provide a metered and regulated supply of seeded, pulverized coal to support magnetohydrodynamic (MHD) power generation research. The original system configuration is described as well as major modifications made in response to specific operational problems. Notable among these was the in-… more
Date: October 1, 1993
Creator: Evans, B. R.; Washington, E. S. & Sanders, M. E.
Partner: UNT Libraries Government Documents Department
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Engineering Development of Advanced Physical Fine Coal Cleaning Technologies: Froth Flotation. Quarterly Technical Progress Report No. 17, August 1, 1992--December 31, 1992

Description: The construction of the DOE POC at the OCDO facility continued through this entire quarter. By the end of the quarter approximately 90% of all of the construction had been completed. All equipment has beeninstalled, checked for mechanical and installation and operated from a local pushbutton. During this quarter a review of items to be completed for start-up was compiled. This information was then presented to the construction subcontractors and agreement was concluded that all items will be co… more
Date: December 31, 1992
Partner: UNT Libraries Government Documents Department
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Engineering development of advanced physical fine coal cleaning for premium fuel applications. Quarterly technical progress report No. 6, January--March 1994

Description: This project is a major step in the Department of Energy`s program to show that ultra-clean coal-water slurry fuel (CWF) can be produced from selected coals and that this premium fuel will be a cost-effectve replacement for oil and natural gas now fueling some of the industrial and utility boilers in the United States as well as for advanced combustars currently under development. The replacement of oil and gas with CWF can only be realized if retrofit costs are kept to a minimum and retrofit b… more
Date: May 6, 1994
Creator: Smit, Frank1 J.; Rowe, R. M.; Anast, K. R. & Jha, M. C.
Partner: UNT Libraries Government Documents Department
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Development of a video-based slurry sensor for on-line ash analysis. Fourth quarter technical progress report, July 1--September 30, 1995

Description: Automatic control of fine coal cleaning circuits has traditionally been limited by the lack of sensors for on-line ash analysis. Although several nuclear-based analyzers are available, none have seen widespread acceptance. This is largely due to the fact that nuclear sensors are expensive and tend to be influenced by changes in seam type and pyrite content. Recently, researchers at VPI and SU have developed an optical sensor for phosphate analysis. The sensor uses image processing technology to… more
Date: October 20, 1995
Creator: Adel, G. T. & Luttrell, G. H.
Partner: UNT Libraries Government Documents Department
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Preparation Characteristics of Illinois Coals

Description: Report issued by the Bureau of Mines discussing the mechanical coal-preparation characteristics. As stated in the introduction, "this second publication reports the washability and screen analyses of the important Illinois coal beds, showing the quality of product that would result when the raw coal is subjected to preparatory treatment" (p. 1). This report includes tables, maps, and illustrations.
Date: 1949
Creator: Crentz, William L. & Fraser, Thomas
Partner: UNT Libraries Government Documents Department
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Integrated coal preparation and CWF processing plant: Conceptual design and costing. Final technical report

Description: At the request of the US Department of Energy (DOE), Pittsburgh Energy Technology Center, a study was conducted to provide DOE with a reliable, documented estimate of the cost of producing coal-water fuel (CWF). The approach to the project was to specify a plant capacity and location, identify and analyze a suitable coal, and develop a conceptual design for an integrated coal preparation and CWF processing plant. Using this information, a definitive costing study was then conducted, on the basi… more
Date: December 1, 1992
Creator: McHale, E. T.; Paul, A. D.; Bartis, J. T. & Korkmaz, M.
Partner: UNT Libraries Government Documents Department
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Improvement of storage, handling, and transportability of fine coal. Quarterly technical progress report No. 6, April 1, 1995--June 30, 1995

Description: The major activities of the period were production operations of the demonstration circuit at Drummond`s Chetopa Preparation Plant near Graysville, Alabama. As the shakedown runs had shown, excellent quality Mulled Coal could be produced, and a total of 870 tonnes (966 tons) was produced. Quality was consistently better than the acceptable level. Immediately following the completion of the production demonstration, removal of equipment and decommissioning of the demonstration facility was under… more
Date: August 22, 1996
Partner: UNT Libraries Government Documents Department
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Novel Supported Bimetallic Carbide Catalysts for Coprocessing of Coal with Waste Materials

Description: The effect of phosphorus on Mo<sub>2</sub>C supported on {gamma}-Al<sub>2</sub>O<sub>3</sub> and activated carbon was studied. The catalysts were characterized by CO chemisorption, BET surface area measurements, x-ray diffraction (XRD), x-ray photoelectron spectroscopy (XPS), and tested for their reactivity for hydroprocessing reactions, particularly hydrogenation (HYD), hydrodesulfurization (HDS) and hydrodenitrogenation (HDN), using model liquid compounds. The P-containing catalysts had highe… more
Date: March 30, 1998
Creator: Song, Chunshan; Cox, David F.; Allen, Fred & Oyama, S. Ted
Partner: UNT Libraries Government Documents Department
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POC-scale testing of an advanced fine coal dewatering equipment/technique. Quarterly technical progress report 3, April--June 1995

Description: Economical dewatering of an ultra-fine clean coal product to a 20% or lower level moisture will be an important step in successful implementation of the advanced fine coal cleaning processes. The main objective of the proposed program is to evaluate a novel surface modification technique, which utilizes the synergistic effect of metal ions-surfactant combination, for dewatering of ultra-fine clean coal on a proof-of-concept (POC) scale of 1 to 2 tph. The novel surface modification technique dev… more
Date: August 5, 1995
Creator: Groppo, J. G. & Parekh, B. K.
Partner: UNT Libraries Government Documents Department
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Engineering development of advanced physical fine coal cleaning for premium fuel applications. Quarterly technical progress report 15, April--June 1996

Description: Goal is engineering development of two advanced physical fine coal cleaning processes, column flotation and selective agglomeration, for premium fuel applications. Scope includes laboratory research and bench-scale testing on 6 coals to optimize these processes, followed by design/construction/operation of a 2-t/hr PDU. During this quarter, parametric testing of the 30-in. Microcel{trademark} flotation column at the Lady Dunn plant was completed and clean coal samples submitted for briquetting.… more
Date: July 25, 1996
Creator: Moro, Nick; Shields, Gene L.; Smit, Frank J. & Jha, Mahesh C.
Partner: UNT Libraries Government Documents Department
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Bench-Scale Testing of the Micronized Magnetite Process

Description: A recent emphasis of the Department of Energy's (DOE's), Coal Preparation Program has been the development of high-efficiency technologies that offer near-term, low-cost improvements in the ability of coal preparation plants to address problems associated with coal fines. In 1992, three cost-shared contracts were awarded to industry, under the first High-Efficiency Preparation (HEP I) solicitation. All three projects involved bench-scale testing of various emerging technologies, at the Federal … more
Date: November 1, 1997
Creator: Torak, Edward R. & Suardini, Peter J.
Partner: UNT Libraries Government Documents Department
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ENGINEERING DEVELOPMENT OF ADVANCED PHYSICAL FINE COAL CLEANING FOR PREMIUM FUEL APPLICATIONS

Description: Bechtel, together with Amax Research and Development Center (Amax R&D), has prepared this study which provides conceptual cost estimates for the production of premium quality coal-water slurry fuel (CWF) in a commercial plant. Two scenarios are presented, one using column flotation technology and the other the selective agglomeration to clean the coal to the required quality specifications. This study forms part of US Department of Energy program �Engineering Development of Advanced Physical Fi… more
Date: June 1, 1997
Partner: UNT Libraries Government Documents Department
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Pilot Scale Single Stage Fine Coal Dewatering and Briquetting Process. Technical Report, September 1--November 30, 1995

Description: The primary goal of the current coal preparation research is to reduce the ash and sulfur content from coal, using fine grinding and various coal cleaning processes to separate finely disseminated mineral matter and pyrite from coal. Small coal particles are produced by the grinding operation, thus the ultrafine coal becomes very difficult to dewater. In addition, the ultrafine coal also creates problems during its transportation, storage and handling at utility plants. The current research is … more
Date: December 31, 1995
Creator: Wilson, J. W.; Ding, Y. & Honaker, R. Q.
Partner: UNT Libraries Government Documents Department
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Engineering design and analysis of advanced physical fine coal cleaning technologies. Technical progress report No. 29, March 1993

Description: The necessary steps are being taken to deliver the Coal Cleaning Simulator with a full range of capabilities by the completion date of June 30, 1993 given in the revised project work plan. Changes to the simulator input washability mixing were started. Modifications were made to the UOS models output stream mixture molecular weight calculations. Updates were made to the CCS ModelManager interface. Updates were made to the CCS User Guide with the addition of an equipment costing appendix. This a… more
Date: April 20, 1993
Creator: Gallier, P. W.
Partner: UNT Libraries Government Documents Department
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POC-SCALE TESTING OF OIL AGGLOMERATION TECHNIQUES AND EQUIPMENT FOR FINE COAL PROCESSING

Description: This report covers the technical progress achieved from July 01, 1997 to September 30, 1997 on the POC-Scale Testing Agglomeration Techniques and Equipment for Fine Coal Processing project. Experimental procedures and test data for recovery of fine coal from coal fines streams generated at a commercial coal preparation plant are described. Two coal fines streams, namely Sieve Bend Effluent and Cyclone Overflow were investigated. The test results showed that ash was reduced by more than 50% at c… more
Date: January 1, 1998
Partner: UNT Libraries Government Documents Department
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DENSE MEDIA CYCLONE OPTIMIZATION

Description: The project start date delayed by approximately 7 weeks due to contractual difficulties. Although the original start date was December 14, 2000, the Principal Investigator did not receive the Project Authorization Notice (PAN) from the Virginia Tech Office of Sponsored Programs until February 5, 2001. Therefore, the first project task (i. e., Project Planning) did not begin until February 2001. Activities completed as part of this effort included: (i) revision and updating of the Project Work P… more
Date: September 10, 2001
Creator: Luttrell, Gerald H.
Partner: UNT Libraries Government Documents Department
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Micro-agglomerate flotation for deep cleaning of coal. Quarterly progress report, October 1--December 30, 1995

Description: Goals are to demonstrate the technical and economic feasibility of a micro-agglomerate flotation process (combination of oil-agglomeration and froth flotation) and to establish the essential criteria for reagent selection and system design and operation. The research program was organized into the following tasks: interfacial studies, emulsification, agglomerate growth and structure, and agglomerate flotation. Work on the first two tasks has been completed.
Date: April 1, 1996
Creator: Chandler, S. & Hogg, R.
Partner: UNT Libraries Government Documents Department
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Development of an On-Line Coal Washability Analyzer

Description: Washability analysis is the basis for nearly all coal preparation plant separations. Unfortunately, there are no on-line techniques for determining this most fundamental of all coal cleaning information. In light of recent successes at the University of Utah, it now appears possible to determine coal washability on-line through the use of x-ray computed tomography (CT) analysis. The successful development of such a device is critical to the establishment of process control and automated coal bl… more
Date: March 31, 1998
Creator: Lin, C. L.; Luttrell, G. H.; Adel, G. T. & Miller, Jan D.
Partner: UNT Libraries Government Documents Department
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A study of Multistage/Multifunction Column for Fine Coal Cleaning CRADA PC93-005, Final Report

Description: The overall objective of the this research project is to explore the potential applicability of a multistage column for fine coal cleaning and other applications in fluid particle separation. The research work identifies the design parameters and their effects on the performance of the separation device. The results of this study provide an engineering data basis for further development of this technology in coal cleaning and in general areas of fluid and particle separations.
Date: September 4, 1998
Creator: Lai, Ralph; Chiang, Shiao-Hung; He, Daxin & Feng, Yuru
Partner: UNT Libraries Government Documents Department
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