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Science 21 February 1975:
Vol. 187. no. 4177, pp. 646 - 648
DOI: 10.1126/science.187.4177.646
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Articles

Agglomeration of Ash in Fluidized Beds Gasifying Coal: The Godel Phenomenon

Joseph Yerushalmi 1, Morris Kolodney 1, Robert A. Graff 1, Arthur M. Squires 1, and Richard D. Harvey 2

1 Department of Chemical Engineering, City College, City University of New York, New York 10031
2 Illinois State Geological Survey, Urbana 61801

In a bed of anthracite or bituminous coke fluidized by air at 10 to 15 meters per second at 1200° to 1400°C, molten ash forms beads on the surface of a coke particle, some exuding from its interior. The beads merge and detach them-selves to grow further as loose fluidized ash agglomerates of low carbon content.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Fluid Beds: At Last, Challenging Two Entrenched Practices.
A. M. Squires, M. Kwauk, and A. A. Avidan (1985)
Science 230, 1329-1337
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