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High Performance Materials In Coal Conversion Utilization Technical Progress Report April 1 1996 June 30 1996
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Book Synopsis High Performance Materials in Coal Conversion Utilization. Technical Progress Report, April 1, 1996--June 30, 1996 by :
Download or read book High Performance Materials in Coal Conversion Utilization. Technical Progress Report, April 1, 1996--June 30, 1996 written by and published by . This book was released on 1996 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: Object is to test, analyze, and improve the heat and coal-slag corrosion resistance of a SiC(p)/Al2O3 ceramic composite tubular material. The material will be evaluated for resistance to pressures, temperatures, and corrosion within a coal-fired high- temperature, high-pressure air heater. Microstructures and some mechanical properties of composite tubes were studied. Other studies include corrosion thermodynamic analysis of Al oxide coated composite.
Book Synopsis High Performance Materials in Coal Conversion Utilization. Final Report, October 1, 1993--September 30, 1996 by :
Download or read book High Performance Materials in Coal Conversion Utilization. Final Report, October 1, 1993--September 30, 1996 written by and published by . This book was released on 1996 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report describes the research conducted at the University of Tennessee Space Institute on high performance materials for use in corrosive environments. The work was supported by a US Department of Energy University Coal Research grant. Particular attention was given to the silicon carbide particulate reinforced alumina matrix ceramic composite manufactured by Lanxide Corporation as a potential tubular component in a coal-fired recuperative high-temperature air heater. Extensive testing was performed to determine the high temperature corrosion effects on the strength of the material. A computer modeling of the corrosion process was attempted but the problem proved to be too complex and was not successful. To simplify the situation, a computer model was successfully produced showing the corrosion thermodynamics involved on a monolithic ceramic under the High Performance Power System (HIPPS) conditions (see Appendix A). To seal the material surface and thus protect the silicon carbide particulate from corrosive attack, a dense non porous alumina coating was applied to the material surface. The coating was induced by a defocused carbon dioxide laser beam. High temperature corrosion and strength tests proved the effectiveness of the coating. The carbon dioxide laser was also used to successfully join two pieces of the Lanxide material, however, resources did not allow for the testing of the resulting joint.
Book Synopsis High Performance Materials in Coal Conversion Utilization. Technical Progress Report, January 1--March 31, 1995 by :
Download or read book High Performance Materials in Coal Conversion Utilization. Technical Progress Report, January 1--March 31, 1995 written by and published by . This book was released on 1995 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: The object of this grant is to test, analyze, and improve the heat and coal-slag corrosion resistance of a SIC(p)/AI203 ceramic composite tubular material. The material will be evaluated for its ability to withstand the pressures, temperatures and corrosion attack which would be encountered within a coal-fired high-temperature, high pressure air heater. The evaluation will include strength testing at elevated temperatures. The feasibility of several joining and coating techniques will also be investigated. Results from the following tasks and subtasks are presented: Task 1--materials; Task 2--pre and post test material characterization; Subtask 2A--strength of materials testing and analysis; Subtask 2B--corrosion thermodynamic analysis; Subtask 3A--bench scale lab tests; Subtask 3B--field exposure tests; and Task 4--project management. An appendix explains the coating of Lanxide SiC/Al2O3 ceramic composite.
Download or read book Fossil Energy Update written by and published by . This book was released on 1982 with total page 952 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Government Reports Announcements & Index by :
Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1996-09 with total page 1244 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis High Conversion of Coal to Transportationn Fuels for the Future with Low HC Gas Production. Progress Report No. 7, April 1--June 30, 1994 by :
Download or read book High Conversion of Coal to Transportationn Fuels for the Future with Low HC Gas Production. Progress Report No. 7, April 1--June 30, 1994 written by and published by . This book was released on 1994 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective is to produce a Synthetic crude from coal at a cost lower than $30.00 per barrel (Task A). A second objective is to produce a fuel which is low in aromatics, yet of sufficiently high octane number for use in the gasoline-burning transportation vehicles of today. To meet this second objective, research was proposed, and funding awarded, for conversion of the highly-aromatic liquid product from coal conversion to a product high in isoparaffins, which compounds in the gasoline range exhibit a high octane number (Task B). Experimental coal liquefaction studies conducted in a batch microreactor in our laboratory have demonstrated potential for high conversions of coal to liquids with low yields of hydrocarbon (HC) gases, hence small consumption of hydrogen in the primary liquefaction step. Ratios of liquids/HC gases as high as 30/1, at liquid yields as high as 82% of the coal by weight, have been achieved. The principal objective of this work is to examine how nearly we may approach these results in a continuous-flow reactor system, at a size sufficient to evaluate the process concept for production of transportation fuels from coal. Accomplishments for this period are described.
Book Synopsis Moorlands: Wild Life Conservation, Amenity and Recreation by :
Download or read book Moorlands: Wild Life Conservation, Amenity and Recreation written by and published by . This book was released on 1983* with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Advanced Coal Liquefaction. Quarterly Technical Progress Report, April 1, 1995-June 30, 1995 by :
Download or read book Advanced Coal Liquefaction. Quarterly Technical Progress Report, April 1, 1995-June 30, 1995 written by and published by . This book was released on 1996 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Materials research for clean utilization of coal by : Institute for Materials Research (U.S.)
Download or read book Materials research for clean utilization of coal written by Institute for Materials Research (U.S.) and published by . This book was released on 1977 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Supercritical Fluid Reactions for Coal Processing. Quarterly Progress Report, April 1, 1996--June 30, 1996 by :
Download or read book Supercritical Fluid Reactions for Coal Processing. Quarterly Progress Report, April 1, 1996--June 30, 1996 written by and published by . This book was released on 1996 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: Exciting opportunities exist for the application of supercritical fluid (SCF) reactions for the pre-treatment of coal. Utilizing reactants which resemble the organic nitrogen containing components of coal, we propose to develop a method to tailor chemical reactions in supercritical fluid solvents for the specific application of coal denitrogenation. The tautomeric equilibrium of a Schiff base was chosen as the model system and was investigated in supercritical ethane and cosolvent modified supercritical ethane.
Book Synopsis Wear-resistant Materials for Coal Conversion and Utilization. First Progress Report, October 1979-April 1980 by :
Download or read book Wear-resistant Materials for Coal Conversion and Utilization. First Progress Report, October 1979-April 1980 written by and published by . This book was released on 1980 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Studies of wear-resistant materials were concentrated mostly on hard coatings and surface treatments, such as chemical vapor deposited materials, thermal-sprayed materials with post-deposition laser treatments, and surface-bonded materials. Several coatings were found to have extremely good erosion resistance. A nickel-bonded titanium diboride material was found to have extremely high erosion resistance. An erosion data bank for existing and promising valve materials was begun. Erosion test results at six impingment angles and four particle velocities were produced. Testing of a 6-inch ball-valve ball coated with a Cr-Ni-B coating in a laboratory ball-valve testing facility reached the half-way point; 10,000 open-close cycles in coal-ash.
Download or read book Energy Research Abstracts written by and published by . This book was released on 1980 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Government reports annual index by :
Download or read book Government reports annual index written by and published by . This book was released on 199? with total page 1216 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Conversion of High Carbon Refinery By-products. Quarterly Technical Report, April 1--June 30, 1996 by :
Download or read book Conversion of High Carbon Refinery By-products. Quarterly Technical Report, April 1--June 30, 1996 written by and published by . This book was released on 1996 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: The overall objective of the project is to demonstrate that a partial oxidation system, which utilizes a transport reactor, is a viable means of converting refinery wastes, byproducts, and other low value materials into valuable products. The primary product would be a high quality fuel gas, which could also be used as a source of hydrogen. The concept involves subjecting the hydrocarbon feed to pyrolysis and steam gasification in a circulating bed of solids. Carbon residues formed during pyrolysis, and metals in the feed, are captured by the circulating solids which are returned to the bottom of the transport reactor. Air or oxygen is introduced in this lower zone and sufficient carbon is burned, sub-stoichiometrically, to provide the necessary heat for the endothermic pyrolysis and gasification reactions. The hot solids and gases leaving this zone pass upward to contact the feed material and continue the gasification process. Tests were conducted in the Transport Reactor Test Unit (TRTU) to study gasification and combustion of Rose Bottoms using the spent FCC (Fluid Catalytic Cracker) catalyst as the circulating medium at temperature of 1,690 F. The Rose (Residuum Oil Supercritical Extraction) bottoms was produced in the Kellogg's Rose unit. Studies were done in the Bench Scale Reactor Unit (BRU) to characterize petroleum coke with respect to pyrolysis and agglomeration tendency upon heating to 1,800 F. Studies were conducted in the CFS (Cold Flow Simulator) to determine the various aeration flowrates required for satisfactory circulation of petroleum coke in the TRTU. Results from these studies are presented in this report. A dry solid feed system was developed and tested for use in the fourth quarter.
Book Synopsis Large Scale Solubilization of Coal and Bioconversion to Utilizable Energy. Seventh Quarterly Technical Progress Report, April 1, 1995--June 30, 1995 by :
Download or read book Large Scale Solubilization of Coal and Bioconversion to Utilizable Energy. Seventh Quarterly Technical Progress Report, April 1, 1995--June 30, 1995 written by and published by . This book was released on 1995 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: In order to develop a system for a large scale coal solubilization and its bioconversion to utilizable fuel, we plan to clone the genes encoding Neurospora protein that facilitate depolymerization of coal. We also plan to use desulfurizing bacteria to remove the sulfur in situ and use other microorganisms to convert biosolubilized coal into utilizable energy following an approach utilizing several microorganisms. In addition the product of coal solubilized by fungus will be characterized to determine their chemical nature and the mechanism of reaction catalyzed by fungal product during in vivo and in vitro solubilization by the fungus or purified fungal protein.
Book Synopsis Large Scale Solubilization of Coal and Bioconversion to Utilizable Energy. Third Quarterly Technical Progress Report, April 1, 1994--June 30, 1994 by :
Download or read book Large Scale Solubilization of Coal and Bioconversion to Utilizable Energy. Third Quarterly Technical Progress Report, April 1, 1994--June 30, 1994 written by and published by . This book was released on 1994 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: In order to develop a system for a large scale coal solubilization and its bioconversion to utilizable fuel, the investigators plan to clone the genes encoding Neurospora protein that facilitate depolymerization of coal. They also plan to use desulfurizing bacteria to remove the sulfur in situ and use other microorganisms to convert biosolubilized coal into utilizable energy following an approach utilizing several microorganisms. In addition the product of coal solubilized by fungus will be characterized to determine their chemical nature and the mechanism of reaction catalyzed by fungal product during in vivo and in vitro solubilization by the fungus or purified fungal protein. Main objectives are: (1) cloning of Neurospora gene for coal depolymerization protein controlling solubilization in different host cells, utilizing Neurospora plasmid and other vector(s); (2) (a) development of a large scale electrophoretic separation of coal drived products obtained after microbial solubilization; (b) identification of the coal derived products obtained after biosolubilization by Neurospora cultures or obtained after Neurospora enzyme catalyzed reaction in in vitro by the wildtype and mutant enzymes; (3) bioconversion of coal drived products into utilizable fuel; and (4) characterization of Neurospora wildtype and mutant CSA protein(s) involved in solubilization of coal in order to assess the nature of the mechanism of solubilization and the role of Neurospora proteins in this process.
Book Synopsis Massachusetts Under the Constitution by :
Download or read book Massachusetts Under the Constitution written by and published by . This book was released on 1780 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
