Distribution of oxygen forms in Alberta low rank coals
β Scribed by Chandrawatee Angle; Norbert Berkowitz
- Book ID
- 107756576
- Publisher
- Elsevier Science
- Year
- 1991
- Tongue
- English
- Weight
- 669 KB
- Volume
- 70
- Category
- Article
- ISSN
- 0016-2361
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Two Polish brown coals and two low-rank bituminous coals were subjected to low-temperature rapid pyrolysis to obtain tars. The reactive (phenolic, carbonyl and carboxyl) oxygen groups in the oils, asphaltenes and preasphaltenes of the tars were quantified. The amount of reactive oxygen groups in the
Table 1 Effect of iron on dry hydrogenation of coal Conversion to Conversion to liquid and gas asphaltene Charge (% dmmf coal) (% dmmf coal) Coal 12.7 Not determined Coal+S 22.8 Not determined Coal+Fe 33.2 14.3 Coal+S+Fe 93.0 47.3 ## Short Communications Table 2 Results of variation of iron conce