Joshi, J. B. ; Shah, Y. T. ; Ruether, J. A. ; Ritz, H. J. (1983) Particle size effects on oxidation of pyrite in air/water chemical coal cleaning Fuel Processing Technology, 7 (2). pp. 173-190. ISSN 0378-3820
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Official URL: http://www.sciencedirect.com/science/article/pii/0...
Related URL: http://dx.doi.org/10.1016/0378-3820(83)90035-8
Abstract
Process development of a means for precombustion removal of sulfur from coal by selective oxidation in an aqueous slurry is reported. The kinetics of the oxidation of pyritic sulfur and the heating value loss for lower Freeport coal were investigated. Experiments were conducted in a semi-batch manner. The effects of coal particle size ( < 72, 72-99, 150-208, 208-430, 700-1410 μ m), reaction time (0-5400 s), temperature (150-200°C), and partial pressure of oxygen (0.28-1.36 MPa) were studied. The oxidation of pyritic sulfur follows the shrinking-core model, where the rate-controlling step was found to be the reaction between oxygen and pyrite.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| ID Code: | 60205 |
| Deposited On: | 08 Sep 2011 09:39 |
| Last Modified: | 08 Sep 2011 09:39 |
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