Experiments were conducted to determine whether mild oxidation of Illinois No. 6 coal at 50Β°C might contribute to a liquefaction process and to add to our knowledge of coal structure. Fractions of coal extract, extracted coal, and fractions of solvent-refined coal were used. Many of the oxidations w
Mild oxidations of coal models
β Scribed by John G. Huntington; Frank R. Mayo; Norman A. Kirshen
- Publisher
- Elsevier Science
- Year
- 1979
- Tongue
- English
- Weight
- 733 KB
- Volume
- 58
- Category
- Article
- ISSN
- 0016-2361
No coin nor oath required. For personal study only.
β¦ Synopsis
Relative rates of oxidation of numerous coal models have been determined by two methods in radicalinitiated oxidationsat 50Β°C. The results show that hydroaromatic rings (as in 9,10-dihydroanthracene and tetralin) and some anthracenes are so much more reactive than -CH2-O-or -CH2-links between benzene rings that cleavage reactions of the latter groups would be excluded in competitive oxidation. However, similar connecting links between naphthalene or more condensed rings will be more competitive. Rates of oxidation of condensed aromatic hydrocarbons can now be related to extensive previous data on alkylbenzenes and a variety of aliphatic compounds.
π SIMILAR VOLUMES
Mild oxidation of Pittsburgh bed coal was carried out to investigate the removal of organic sulphur. It was postulated that the organic sulphur in coal might first be oxidized to sulphonic acids and then removed through known desulphonation methods. The coal was oxidized with hydrogen peroxide or mi
Two low-rank mature coals have been oxidized with alkaline nitrobenzene. Soluble phenolic aldehydes and ketones were obtained, similar to those formed from lignites and separable by the same scheme of extraction.