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Spouted and spout-fluid bed combustors. 1 : Devolatilization and combustion of coal volatiles
| Content Provider | Semantic Scholar |
|---|---|
| Author | Tia, Suvit Bhattacharya, Somesh Wibulswas, Prida |
| Copyright Year | 1991 |
| Abstract | 1SUMMARY The devolatilization and volatile combustion of a single coal particle in spouted and spout-fluid beds have been studied. The results showed that the flame extinction time increases with the particle diameter, and decreases with the bed temperature. When the bed temperature and the air flow rate were fixed, the operation modes (spouted or spout-fluid bed) showed less effect on the mean flame extinction time. A mathematical model orthe spouted bed mode for preignition and postignition periods has also been developed assuming the devolatilization rate to be controlled by heat transfer and multireaction pyrolysis kinetics based on volatile products. Ignition, heat transfer back from the volatile flame to the particle surface, variation in flame temperature, and the hydrodynamics of SB arc taken into account. The model predictions, with some adjusting paramctcrs, were in good agreement with cxperirncntal results. |
| Starting Page | 185 |
| Ending Page | 201 |
| Page Count | 17 |
| File Format | PDF HTM / HTML |
| DOI | 10.1002/er.4440150306 |
| Volume Number | 15 |
| Alternate Webpage(s) | http://archive.lib.kmutt.ac.th/doc/objects/20100120143941/ar_6617/2011090914045612000189.pdf |
| Alternate Webpage(s) | https://doi.org/10.1002/er.4440150306 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
