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Utilization of coal-water fuels in fire-tube boilers

Description: This project is a demonstration for firing coal-water slurry in a fire-tube boiler. It includes design, installation, and demonstration of the slurry firing equipment in a fire-tube boiler at the University of Alabama in Tuscaloosa. The project will be funded by the US Department of Energy with cost sharing from Jim Walter Resources and the University of Alabama. Energy and Environmental Research Corporation is the prime contractor responsible for all respects of the project. The specific objec… more
Date: January 1, 1991
Creator: Sommer, T. & Melick, T.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Thin polymer icemaker development and test program

Description: We have constructed and tested a small device to produce ice in ice/water mixtures using a cold fluid as the heat sink. The device is a flexible heat exchanger constructed from a thin film of a suitable polymer. When filled with circulating liquid coolant the heat exchanger consists of an inflated series of parallel tubes; ice forms on the outside in complementary half cylinders. When the circulation is cut off, gravity drains the coolant and the static head of the water bath crushes the tubes,… more
Date: August 1, 1991
Creator: Leigh, R.W. (Pratt Inst., Brooklyn, NY (United States))
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Development of improved iron Fischer-Tropsch catalysts

Description: The objective of proposed research is development of catalysts with enhanced slurry phase activity and better selectivity to fuel range products, through a more detailed understanding and systematic studies of the effects of pretreatment procedures and promoters/binders (silica) on catalyst performance.
Date: July 19, 1991
Creator: Bukur, D.B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Development of improved iron Fischer-Tropsch catalysts

Description: The objective of proposed research is development of catalysts with enhanced slurry phase activity and better selectivity to fuel range products, through a more detailed understanding and systematic studies of the effects of pretreatment procedures and promoters/binders (silica) on catalyst performance.
Date: October 28, 1991
Creator: Bukur, D.B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Liquid Phase Methanol LaPorte Process Development Unit: Modification Operation, and Support Studies

Description: In April 1987, Air Products started the third and final contract with the US Department of Energy to develop the Liquid Phase Methanol (LPMEOH) process. One of the objectives was to identify alternative commercial catalyst(s) for the process. This objective was strategically important as we want to demonstrate that the LPMEOH process is flexible and not catalyst selection limited. Among three commercially available catalysts evaluated in the lab, the catalyst with a designation of F21/0E75-43 w… more
Date: January 28, 1991
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Cyclone reburn using coal-water fuel: Pilot-scale development and testing

Description: There is an ongoing effort to develop retrofit technologies capable of converting oil- and/or gas-fired boilers to coal combustion. The objective of this project is to demonstrate the technical feasibility of an improved portion of a previously developed retrofit system designed for the purpose of converting oil/gas boilers. This improvement would almost entirely eliminate the use of premium fuels, thereby significantly increasing the economical attractiveness of the system. Specifically, the g… more
Date: October 1, 1991
Creator: Eckhart, C.F. & DeVault, R.F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Liquid Phase Methanol LaPorte Process Development Unit: Modification, Operation, and Support Studies

Description: The LPMEOH process was conceived and patented by Chem Systems Inc. in 1975. Initial research and studies on the process focused on two distinct modes of operation. The first was a liquid fluidized mode with relatively large catalyst pellets suspended in a fluidizing liquid, and the second was an entrained (slurry) mode with fine catalyst particles slurried in an inert liquid. The development of both operating modes progressed in parallel from bench scale reactors, through an intermediate scale … more
Date: February 28, 1991
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Coal-fueled high-speed diesel engine development

Description: The objectives of this program are to study combustion feasibility by running Series 149 engine tests at high speeds with a fuel injection and combustion system designed for coal-water-slurry (CWS). The following criteria will be used to judge feasibility: (1) engine operation for sustained periods over the load range at speeds from 600 to 1900 rpm. The 149 engine for mine-haul trucks has a rated speed of 1900 rpm; (2) reasonable fuel economy and coal burnout rate; (3) reasonable cost of the en… more
Date: November 1, 1991
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Utilization of coal-water fuels in fire-tube boilers

Description: This project is a demonstration for firing coal-water slurry in a fire-tube boiler. It includes design, installation, and demonstration of the slurry firing equipment in a fire-tube boiler at the University of Alabama in Tuscaloosa. The project will be funded by the US Department of Energy with cost sharing from Jim Walter Resources and the University of Alabama. Energy and Environmental Research Corporation is the prime contractor responsible for all aspects of the project. The specific object… more
Date: January 1, 1991
Creator: Sommer, T. & Melick, T.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Advanced atomization concept for CWF burning in small combustors, Phase 2

Description: The program describes a concept referred to as opposed-jet atomization, which is particularly applicable to coal-water fuel (CWF). In the present atomizer design, two opposed jets of CWF are directed at each other and externally encounter a perpendicular blast of air at the collision point to create a spray of much finer droplets. The present Phase 2 program involved further evaluation of the opposed-jet atomizer performance and related tasks.
Date: December 1, 1991
Creator: McHale, E. T. & Heaton, H. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Advanced coal-fueled gas turbine systems reference system definition update

Description: The objective of the the Direct Coal-Fueled 80 MW Combustion Turbine Program is to establish the technology required for private sector use of an advanced coal-fueled combustion turbine power system. Under this program the technology for a direct coal-fueled 80 MW combustion turbine is to be developed. This unit would be an element in a 207 MW direct coal-fueled combustion turbine combined cycle which includes two combustion turbines, two heat recovery steam generators and a steam turbine. Key … more
Date: September 1, 1991
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

An HMS/TRAC analysis of a high-level radioactive waste tank

Description: It has been observed that a high-level radioactive waste tank generates quantities of hydrogen and nitrous oxide mixtures that are potentially well within flammability limits. These gases are produced from chemical and nuclear decay reactions in a slurry of radioactive waste material. The slurry is covered by a thick crust composed of sodium nitrate and nitrite salts. Significant amounts of the combustible and reactant gases are produced over a 3- to 4-month period before the crust ruptures and… more
Date: January 1, 1991
Creator: Travis, J. R.; Nichols, B. D.; Spore, J. W. & Wilson, T. L.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

The effect of CO sub 2 and H sub 2 O and their interaction in a novel slurry phase synthesis of methanol

Description: Experimental results on the influence of CO{sub 2} and H{sub 2}O in a novel liquid phase concurrent'' synthesis of methanol are presented. The synthesis carried out in a single reactor under mild conditions (T = 150{degrees}C; P = 910 psig) likely involves the carbonylation of methanol to methyl formate followed by the hydrogenolysis of the methyl formate to two molecules of methanol; the net result is the hydrogenation of CO to give methanol. Carbon dioxide is not an intermediate in this syste… more
Date: January 1, 1991
Creator: Palekar, V.M.; Liu, Zhenyu; Shah, Y.T.; Tierney, J.W. & Wender, I.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

(Basic properties of coals and other solids)

Description: This report discusses basic properties of bituminous, subbituminous, and lignite coals. Properties of coal liquids are also investigated. Heats of immersion in strong acids are found for Pittsburgh {number sign}8, Illinois {number sign}6, and Wyodak coals. Production of coal liquids by distillation is discussed. Heats of titration of coal liquids and coal slurries are reported. (VC)
Date: November 25, 1991
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Cooperative research program in coal liquefaction

Description: This Quarterly Report on coal liquefaction research includes discussion in the areas of (1) Iron Based Catalysts for Coal Liquefaction; (2) Exploratory Research on Coal Conversion; (3) Novel Coal Liquefaction Concepts; (4) Novel Catalysts for Coal Liquefaction. (VC)
Date: January 1, 1991
Creator: Huffman, G.P. (ed.)
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Effects of calcium magnesium acetate on the combustion of coal-water slurries

Description: The general objective of the project is to investigate the combustion behavior of single and multiple Coal-Water Fuel (CWF) particles burning at high temperature environments. Both uncatalyzed as well as catalyzed CWF drops with Calcium Magnesium Acetate (CMA) catalyst will be investigated. Emphasis will also be given in the effects of CMA on the sulfur capture during combustion. To help achieve these objectives the following project tasks were carried over this 7th three-month period: (1) Rede… more
Date: January 1, 1991
Creator: Levendis, Y.A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Inhibiting pitting corrosion in carbon steel exposed to dilute radioactive waste slurries

Description: Dilute caustic high-level radioactive waste slurries can induce pitting corrosion in carbon steel. Cyclic potentiodynamic polarization tests were conducted in simulated and actual waste solutions to determine minimum concentrations of sodium nitrate which inhibit pitting in ASTM A537 class 1 steel exposed to these solutions. Susceptibility to pitting was assessed through microscopic inspection of specimens and inspection of polarization scans. Long-term coupon immersion tests were conducted to … more
Date: January 1, 1991
Creator: Zapp, P. E. & Hobbs, D. T.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Mechanistic analysis of double-shell tank gas release

Description: Pacific Northwest Laboratory (PNL) is studying possible mechanisms and fluid dynamics contributing to the periodic release of gases from the double-shell waste storage tanks at Hanford. This study is being conducted for Westinghouse Hanford Company (WHC), a contractor for the US Department of Energy (DOE). This interim report discusses the work done through November 1990. Safe management of the wastes at Hanford depends on an understanding of the chemical and physical mechanisms that take place… more
Date: December 1, 1991
Creator: Allemann, R. T.; Antoniak, Z. I.; Friley, J. R.; Haines, C. E.; Liljegren, L. M. & Somasundaram, S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Engineering development of selective agglomeration: Task 7, Evaluation of bench-scale and component tests

Description: This report presents the Task 7 findings of the project entitled Engineering Development of Selective Agglomeration'' to develop selective agglomeration technology to a commercially acceptable level by 1992. The objectives of this report are to summarize the work completed as a part of Task 7, which includes engineering analysis of process deficiencies, analysis of all project test results, and evaluation and selection of an agglomeration process for further development in Phase II. Other objec… more
Date: November 1, 1991
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Magnetic relaxation--coal swelling, extraction, pore size

Description: The grant activities during this period fall into four categories: (1) Completion of preparatory work, (2) Procedure refinement and actual preparation of whole coal, coal residue, coal extract and swelled coal samples for NMR studies, (3) Related studies of coal photolysis that employ materials from preliminary extractions and that examine the u.v.-visible and mass spectra of the extracts and (4) Continued investigations of the pulsed EPR characteristics of the whole coal samples that were prep… more
Date: January 1, 1991
Creator: Doetschman, D.C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

An innovative catalyst system for slurry-phase Fischer-Tropsch synthesis: Cobalt plus a water-gas-shift catalyst

Description: The feasibility of using a mechanical mixture of a Co/MgO/SiO{sub 2} Fischer-Tropsch catalyst and a Cu-ZnO/Al{sub 2}O{sub 3} water-gas-shift (WGS) catalyst for hydrocarbon synthesis in a slurry reactor has been established. Such a mixture can combine the superior product distribution from cobalt with the high activity for the WGS reaction characteristic of iron. Weight ratios of Co/MgO/SiO{sub 2} to Cu-ZnO/Al{sub 2}O{sub 3} of 0.27 and 0.51 for the two catalysts were studied at 240{degrees}C, 0… more
Date: July 1, 1991
Creator: Satterfield, C. N.; Yates, I. C. & Chanenchuk, C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Design of generic coal conversion facilities: Process release---Direct coal liquefaction

Description: The direct liquefaction portion of the PETC generic direct coal liquefaction process development unit (PDU) is being designed to provide maximum operating flexibility. The PDU design will permit catalytic and non-catalytic liquefaction concepts to be investigated at their proof-of-the-concept stages before any larger scale operations are attempted. The principal variations from concept to concept are reactor configurations and types. These include thermal reactor, ebullating bed reactor, slurry… more
Date: September 1, 1991
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Statistical analysis of the DWPF prototypic sampler

Description: The DWPF process will be controlled using assay measurements on samples of feed slurry. These slurries are radioactive, and thus will be sampled remotely. A Hydraguard{trademark} pump-driven sampler system will be used as the remote sampling device. A prototype Hydraguard{trademark} sampler has been studied in a full-scale mock-up of a DWPF process vessel. Two issues were of dominant interest: (1) what accuracy and precision can be provided by such a pump-driven sampler in the face of the slurr… more
Date: January 1, 1991
Creator: Postles, R.L.; Reeve, C.P.; Jenkins, W.J. & Bickford, D.F.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

District cooling: Phase 2, Direct freeze ice slurry system testing

Description: The objectives of this research are to: extend the range of pressure drop data for ice-water slurry flows, and design and build a prototypical ice slurry distribution system which demonstrates ice slurry handling at an end user's heat exchanger, without sending ice slurry directly through the heat exchanger. The results of Phase 1 work demonstrated a 40% reduction in pump power required to move an ice-water slurry versus the same mass flow of water only. In addition to lower pressure drop, pump… more
Date: January 2, 1991
Creator: Winters, P.J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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