Investigation of the deswelling characteristics of Illinois No. 6 coal by nuclear magnetic resonance imaging (NMRI) and NMR techniques
Conference
·
OSTI ID:10180718
- Pennsylvania State Univ., University Park, PA (United States). Dept. of Materials Science and Engineering
- Argonne National Lab., IL (United States)
NMRI can observe the internal and external physical structural changes of a sample as well as the solvent penetration process without physical handing. Although the spatial resolution achievable in NMRI of coal samples is only 20--40 {mu}m swelling of coal can be measured because a polar solvent expands the coal to almost twice its original volume. NMR can also monitor the change of solvent concentration m a swollen coal (by integrating the peak areas of the NMR spectra), and can also examine solvent mobility (by measuring spin-lattice and spin-spin relaxation times). This paper reports results on application of NMR and NMRI for study of solvent induced-deswelling in an Illinois No. 6 coal.
- Research Organization:
- Argonne National Lab., IL (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- W-31109-ENG-38
- OSTI ID:
- 10180718
- Report Number(s):
- ANL/CHM/CP-80002; CONF-930904-10; ON: DE93019763
- Resource Relation:
- Conference: 7. international conference on coal science,Banff (Canada),12-17 Sep 1993; Other Information: PBD: [1993]
- Country of Publication:
- United States
- Language:
- English
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