Mild oxidations of coal: 1. Hydrogen peroxide oxidation

✍ Scribed by David J. Boron; Scott R. Taylor

• Publisher: Elsevier Science
• Year: 1985
• Tongue: English
• Weight: 367 KB
• Volume: 64
• Category: Article
• ISSN: 0016-2361
• DOI: 10.1016/0016-2361(85)90218-2

✦ Synopsis

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 mixtures of hydrogen peroxide and acid. After oxidation, the coal was treated with water or phosphoric acid at reflux. Under the mild conditions used, coal oxidation led to slight changes in the organic sulphur content. The ensuing treatment of the oxidized coal with water or phosphoric acid again affected the organic sulphur content, generally decreasing the organic sulphur level. Pyritic sulphur removal varied considerably depending upon the reagent system and reaction conditions.