This Paper presents a statistical and mathematical analysis of hypotheses concerning the autoclave hydrogenating depolymerization of coal extract fractions insoluble in benzene. From comparison of theoretical and experimental data the most probable reaction mechanism was selected.
Mathematical analysis of hydrogenating depolymerization of asphaltenes from coal extracts
β Scribed by Jerzy Szczygiel; Marek Stolarski
- Publisher
- Elsevier Science
- Year
- 1988
- Tongue
- English
- Weight
- 519 KB
- Volume
- 67
- Category
- Article
- ISSN
- 0016-2361
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π SIMILAR VOLUMES
The asphaltenes from hydrogenated coal extract (product A) as well as from hydrogenated lowtemperature coal tars (products B and C) obtained from three bituminous coals were investigated. The asphaltenes were separated into basic (BI and acidic/neutral (A/N) fractions by precipitation of HCI adducts
Asphaltene derived from brown coal was hydrogenated in the temperature range 375-450Β°C with and without the addition of a sulphided nickel molybdate catalyst at initial hydrogen pressures from 2 to 10 MPa and the products were characterized by elemental analysis, non-aqueous titration for acidic oxy