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Title: Supercritical thermodynamics of sulfur and nitrogen species. Quarterly progress report, July 1, 1993--September 30, 1993

Abstract

Significant opportunity exists for the application of supercritical fluid (SCF) technology to coal processing, both for pretreatment of high sulfur 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. This database of model coal compound equilibria is being extended 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 solution 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.

Authors:
Publication Date:
Research Org.:
Georgia Inst. of Tech., Atlanta, GA (United States). School of Chemical Engineering
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
10117597
Report Number(s):
DOE/PC/91287-11
ON: DE94005756; TRN: 94:001593
DOE Contract Number:
FG22-91PC91287
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: [1993]
Country of Publication:
United States
Language:
English
Subject:
01 COAL, LIGNITE, AND PEAT; 37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; COAL; SOLUBILITY; DESULFURIZATION; DENITRIFICATION; SUPERCRITICAL STATE; PROGRESS REPORT; SOLVENT PROPERTIES; EQUATIONS OF STATE; SUPERCRITICAL GAS EXTRACTION; COAL LIQUIDS; COAL LIQUEFACTION; SUPERCRITICAL FLUID CHROMATOGRAPHY; 010400; 400105; PROCESSING; SEPARATION PROCEDURES

Citation Formats

Eckert, C.A.. Supercritical thermodynamics of sulfur and nitrogen species. Quarterly progress report, July 1, 1993--September 30, 1993. United States: N. p., 1993. Web. doi:10.2172/10117597.
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Eckert, C.A.. Supercritical thermodynamics of sulfur and nitrogen species. Quarterly progress report, July 1, 1993--September 30, 1993. United States. doi:10.2172/10117597.
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Eckert, C.A.. Fri . "Supercritical thermodynamics of sulfur and nitrogen species. Quarterly progress report, July 1, 1993--September 30, 1993". United States. doi:10.2172/10117597. https://www.osti.gov/servlets/purl/10117597.
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@article{osti_10117597,
title = {Supercritical thermodynamics of sulfur and nitrogen species. Quarterly progress report, July 1, 1993--September 30, 1993},
author = {Eckert, C.A.},
abstractNote = {Significant opportunity exists for the application of supercritical fluid (SCF) technology to coal processing, both for pretreatment of high sulfur 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. This database of model coal compound equilibria is being extended 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 solution 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.},
doi = {10.2172/10117597},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Dec 31 00:00:00 EST 1993},
month = {Fri Dec 31 00:00:00 EST 1993}
}
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Technical Report:
View Technical Report (0.86 MB)
DOI:  10.2172/10117597
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  • Significant opportunity exists for the application of supercritical fluid (SCF) technology to coal processing, both for pretreatment of high sulfur 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 solubilitymore » 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 solution with meaningful parameters. The equation of state will be used to predict solubility behavior, which will permit the desip and tailoring of SCF cosolvent systems for specific coal processing applications.« less

  • 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 solubilitymore » 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.« less

  • Significant opportunity exists for the application of supercritical fluid (SCF) technology to coal processing, both for pretreatment of high sulfur 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 solubilitymore » 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 solution 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.« less

  • Significant opportunity exists for the application of supercritical fluid (SCF) technology to coal processing, both for pretreatment of high sulfur 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 modem techniques that have the advantage of being much more rapid than traditional techniques. Cosolvent effects on solubilitymore » 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 solution with meaningful parameters. The equation of state wig be used to predict solubility behavior, which will permit the design and tailoring of SCF cosolvent systems for specific coal processing applications.« less