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A solid-state NMR study of condensation/retrograde reactions during coal liquefaction

Technical Report ·
DOI:https://doi.org/10.2172/5586272· OSTI ID:5586272
The objective of this work is to perform an NMR study of the aromaticity in coal, coal derived products and/or model compounds generated by pyrolysis and thermal solubilization of coal in the presence of a hydrogen donor solvent. Cross Polarization with Magic-Angle Spinning (CP/MAS) will be used to measure the carbon aromaticity, and Combined Rotation and Multiple Pulse Spectroscopy (CRAMPS) NMR techniques will be used to measure the hydrogen aromaticity. From these NMR measurements the aromatic hydrogen-to-carbon ratio will be obtained and used to study condensation/retrograde reactions during coal liquefaction. 2 refs., 1 fig.
Research Organization:
Western Research Inst., Laramie, WY (USA)
Sponsoring Organization:
DOE/FE
DOE Contract Number:
AC22-88PC88813
OSTI ID:
5586272
Report Number(s):
DOE/PC/88813-T4; ON: DE90003372
Country of Publication:
United States
Language:
English