Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
211253 | Fuel Processing Technology | 2007 | 4 Pages |
Abstract
Computer-controlled scanning electron microscopy (CCSEM) and X-ray diffraction (XRD) were used to investigate Si-rich phases in several coal fly ash (CFA) samples. The CCSEM measurements utilized both particle size distributions and a particle shape parameter, circularity, to classify the Si-rich phases in these ashes. The results indicated that the amount of free, respirable, crystalline quartz in these CFA samples was very small (< 1.0 vol.% ). Neither the total quartz nor the respirable quartz determined by CCSEM showed a significant correlation with the XRD results for the bulk ash.
Keywords
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Chemical Engineering (General)
Authors
Nick Cprek, Naresh Shah, Frank E. Huggins, Gerald P. Huffman,