Fragmentation and swelling of various coals during devolatilization in a fluidized bed

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Dakič, Dragoljub and Honing, Geert van der and Valk, Marinus (1989) Fragmentation and swelling of various coals during devolatilization in a fluidized bed. Fuel, 68 (7). pp. 911-916. ISSN 0016-2361

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Abstract:The combustion rate of large coal particles in a fluidized bed is to a large extent controlled by the external diffusion. This rate will depend on the particle diameter. There are several processes that affect this diameter: the combustion process itself; attrition; fragmentation; and swelling. The last two processes can cause large diameter changes in a relatively short period, mainly during devolatilization. The experiments reported in this paper are aimed at finding a simple relationship between some properties of the parent coal particles, and the fragmentation and swelling during devolatilization.
Item Type:Article
Copyright:© 1989 Elsevier
Link to this item:http://purl.utwente.nl/publications/70405
Official URL:http://dx.doi.org/10.1016/0016-2361(89)90129-4
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