Supercritical fluid reactions for coal processing
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 Diels-Alder reaction of anthracene and 4-phenyl-1,2,4-triazoline-3,5-dione (PTAD) was chosen as the model system and was investigated in supercritical carbon dioxide. Kinetic data has been previously collected for pure CO{sub 2} at pressures between the critical pressure of CO{sub 2} (73.8 bar) and 216 bar. This data is now being used to construct mathematical forms which can model these pressure induced kinetic changes. One promising avenue of investigation involves treating the supercritical medium as a dense gas, which allows a kinetic model based on high reference pressure fugacity coefficients to be derived.
- Research Organization:
- Georgia Inst. of Tech., Atlanta, GA (United States). School of Chemical Engineering
- Sponsoring Organization:
- USDOE Assistant Secretary for Fossil Energy, Washington, DC (United States)
- DOE Contract Number:
- FG22-94PC94206
- OSTI ID:
- 600582
- Report Number(s):
- DOE/PC/94206--T10; ON: DE97054288
- Country of Publication:
- United States
- Language:
- English
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Supercritical fluid reactions for coal processing. Quarterly report, July 1--September 30, 1996
Supercritical Fluid Reactions for Coal Processing