Criterion for selective microwave heating of sulphur in coal

✍ Scribed by William F. Rush; Michael Onischak

• Publisher: Elsevier Science
• Year: 1983
• Tongue: English
• Weight: 505 KB
• Volume: 62
• Category: Article
• ISSN: 0016-2361
• DOI: 10.1016/0016-2361(83)90010-8

✦ Synopsis

A general criterion is developed for determining whether the selective heating of sulphur-bearing compounds in coal by microwave energy is more effective than conventional heating of the whole sample. Measurements of selectiveabsorption are obtained asa function of microwavefrequenciesfrom 1 to 26 GHz. Using very conservative assumptions, it appears that unless absorption by sulphur compounds is 0.8-2.2 dB higher than absorption by other compounds, it is more efficient to use conventional heating techniques.