Characteristics of American coals in relation to their conversion into clean energy fuels. Quarterly technical progress report, January-March 1978 [electronic resource].
- Published
- Washington, D.C : United States. Energy Research and Development Administration, 1978.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy. - Physical Description
- Pages: 85 : digital, PDF file
- Additional Creators
- United States. Energy Research and Development Administration and United States. Department of Energy. Office of Scientific and Technical Information
Access Online
- Restrictions on Access
- Free-to-read Unrestricted online access
- Summary
- The Penn State/DOE Coal Sample Bank was expanded to include seventeen lignite seams from Texas and two samples of a western Kentucky coal. A total of 253 characterized coal samples and 539 selected printouts of coal data were provided to the coal research community. Results of further coal fractionation studies confirm previous conclusions that fractions of widely differing characteristics can be developed in the laboratory, and indicate that with appropriate process development they could be produced commercially. Knowledge of the detailed occurrence, associations, and format provides the basis for pyrite rejection during coal beneficiation. Operation of the isothermal furnace has continued using nitrogen as a pyrolysis medium at a temperature of 800/sup 0/C. A study is being made into the effects of low temperature oxidation on reducing the agglomerating properties of caking coals. The ultimate aim is to thereby increase the reactivity of the chars produced. Thermogravimetric studies have shown that oxygen uptake can be followed both quantitatively and reproducibly. Removal of inorganic matter by acid treatment significantly changes the nitrogen and carbon dioxide areas of coals and chars. The effect is more pronounced in the case of chars. The effect of preoxidation in air of a highly caking coal in the temperature range 120-250/sup 0/C on weight loss during pyrolysis up to 1000/sup 0/C and reactivity of resultant chars to air at 470/sup 0/C has been investigated. Preoxidation markedly enhances subsequent char reactivity. The mathematical model of a plane flame furnace firing char and low volatile fuel is being improved with the inclusion of radioative heat transfer from the flame to the walls, and of a conduction heat loss through the walls to the ambient. Experiments on the combustion characteristics of coal-oil mixtures have led to minor furnace and control modifications, improvements in operating procedures, and an improved basis for evaluating data. (LTN)
- Report Numbers
- E 1.99:fe-2030-11
fe-2030-11 - Subject(s)
- Other Subject(s)
- Chars
- Chemical Reaction Kinetics
- Coal
- Chemical Composition
- Oxidation
- Physical Properties
- Pyrolysis
- Fuel Slurries
- Combustion Properties
- Combustion
- Experimental Data
- Flames
- Fractionation
- Fuel Oils
- Graphs
- Information Systems
- Lignite
- Mathematical Models
- Sampling
- Separation Processes
- X-Ray Diffraction
- Brown Coal
- Carbonaceous Materials
- Chemical Reactions
- Coherent Scattering
- Data
- Data Forms
- Decomposition
- Diffraction
- Dispersions
- Energy Sources
- Fossil Fuels
- Fuels
- Information
- Kinetics
- Mixtures
- Numerical Data
- Oils
- Organic Compounds
- Other Organic Compounds
- Petroleum Products
- Pyrolysis Products
- Reaction Kinetics
- Scattering
- Slurries
- Suspensions
- Thermochemical Processes
- Note
- Published through SciTech Connect.
01/01/1978.
"fe-2030-11"
Davis, A.; Spackman, W.; Walker, P. L.; Lovell, H. L.; Essenhigh, R. H.; Vastola, F. J.; Given, P. H.; Suhr, N. H.
Pennsylvania State Univ., University Park (USA). Coal Research Section - Funding Information
- EX-76-C-01-2030
View MARC record | catkey: 13845933