Structural characterization of filter cake solids from a solvent-refined coal process (SRC-1)
✍ Scribed by Leonidas Petrakis; Paul F. Ahner; David W. Grandy
- Publisher
- Elsevier Science
- Year
- 1980
- Tongue
- English
- Weight
- 960 KB
- Volume
- 59
- Category
- Article
- ISSN
- 0016-2361
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✦ Synopsis
A study has been undertaken to characterize the structural aspects of the solids that have been recovered from solvent refined coal (SRC-I). Both the mineral matter as well as the organic materials are characterized through the utilization of various analytical techniques: chemical analysis, X-ray techniques, optical microscopy and electron microscopy studies, surface area measurements, density gradient separation, electron spin resonance, magnetic susceptibility and ESCA studies. A comparison is being made of the solids from-this particular process with solids derived from another SRC process. Some of the main findings of this study include the following. Major minerals are pyrrhotite and (Yquartz. Organic inerts consist of fusinite, semifusinite, micrinite and macrinite. The least dense fraction is essentially organic, while the high density fraction contains much of the pyrrhotite. The e.s.r.free-radical measurements show that the solids contain few reactive species.