Fourier transform infrared study of the variation in the oxidation of a coking coal

✍ Scribed by Paul C. Painter; Randy W. Snyder; David E. Pearson; John Kwong

• Publisher: Elsevier Science
• Year: 1980
• Tongue: English
• Weight: 578 KB
• Volume: 59
• Category: Article
• ISSN: 0016-2361
• DOI: 10.1016/0016-2361(80)90209-4

✦ Synopsis

Ten consecutive channel samples along an exploration adit through a high-volatile coking coal seam have been characterized by Fourier transform infrared spectroscopy. This technique was also applied to a quantitative mineralogical analysis of the low-temperature ash from these samples. The results indicate the formation of specific carbonyl groups. It is suggested that the formation of ester crosslinks is responsible for the loss of swelling characteristics and coking properties in the oxidized samples. The formation of carboxylic acid salts during oxidation results in the fixation of organic sulphur as sulphate in the ashing process. It appears that the formation of small amounts of nitrate by a similar mechanism also occurs.