A limitation of 13C CP-MAS n.m.r. spectroscopy for the study of treated coals
โ Scribed by Jean-Marie Dereppe; Claudette Moreaux
- Publisher
- Elsevier Science
- Year
- 1987
- Tongue
- English
- Weight
- 225 KB
- Volume
- 66
- Category
- Article
- ISSN
- 0016-2361
No coin nor oath required. For personal study only.
๐ SIMILAR VOLUMES
The results reported indicate that the low molecular weight olefins (ethylene, propylene and butadiene) which are major gaseous hydrocarbon products of flash pyrolysis of coal derive from the same precursors in coal, whereas methane, benzene and other pyrolysis products are mainly formed from differ
than the initial fraction, which contains more aliphatic and hydroaromatic material. Proton n.m.r. data are consistent with these aromaticity results. ## Conclusions The initial results reported here from tests in the FDU using both coal-derived distillate and residuum show that the unit is basic