Supercritical thermodynamics of sulfur and nitrogen species. Quarterly progress report, April 1, 1993--June 30, 1993

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Description

Significant opportunity exists for the application of supercritical fluid (SCF) technology to coal processing, both for pretreatment of high saw coals, as well as liquefaction and treatment of coal liquids. Supercritical fluids are attractive solvents for a variety of coal processing applications because of their unusual solvating and mass transfer properties. Solubility studies have been carried out for a number of model coal and coal-liquid compounds, primarily in pure supercritical fluids. We are extending this database of model coal compound equilibria using modern techniques that have the advantage of being much more rapid than traditional techniques. Cosolvent effects on solubility ... continued below

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12 p.

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Eckert, C.A. September 1, 1993.

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Description

Significant opportunity exists for the application of supercritical fluid (SCF) technology to coal processing, both for pretreatment of high saw coals, as well as liquefaction and treatment of coal liquids. Supercritical fluids are attractive solvents for a variety of coal processing applications because of their unusual solvating and mass transfer properties. Solubility studies have been carried out for a number of model coal and coal-liquid compounds, primarily in pure supercritical fluids. We are extending this database of model coal compound equilibria using modern techniques that have the advantage of being much more rapid than traditional techniques. Cosolvent effects on solubility are being investigated over a variety of solvent properties. In addition, specific molecular interactions are being investigated through spectroscopic techniques. The resulting data are being used to develop a chemical-physical equation of state (EOS) model of SCF solutions with meaningful parameters. The equation of state will be used to predict solubility behavior, which will permit the design and tailoring of SCF cosolvent systems for specific coal processing applications.

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12 p.

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OSTI as DE93041221

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  • Other Information: PBD: [1993]

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  • Other: DE93041221
  • Report No.: DOE/PC/91287--9
  • Grant Number: FG22-91PC91287
  • DOI: 10.2172/139540 | External Link
  • Office of Scientific & Technical Information Report Number: 139540
  • Archival Resource Key: ark:/67531/metadc627985

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  • September 1, 1993

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  • June 16, 2015, 7:43 a.m.

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  • Jan. 29, 2016, 3:37 p.m.

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Eckert, C.A. Supercritical thermodynamics of sulfur and nitrogen species. Quarterly progress report, April 1, 1993--June 30, 1993, report, September 1, 1993; United States. (digital.library.unt.edu/ark:/67531/metadc627985/: accessed September 25, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.