Fabrication of full scale fiber reinforced hot gas filters by chemical vapor deposition
Conference
·
OSTI ID:140119
- 3M Company, St. Paul, MN (United States)
An initial set of ceramic fiber reinforced, ceramic matrix composite, hot gas candle filters has been developed and tested in a simulated pressurized fluidized bed combustion (PFBC) environment. Two filters were tested at the Westinghouse Science and Technology Center for 100 hours at a filter temperature of 815 to 830 C (1,500 to 1,525 F) using ash from the Grimethorpe PFBC. One filter worked very well and had a uniform 1 millimeter coating of ash over its surface when removed. The second filter had lost about 75 percent of the outer CVD bonded filter surface, which at this early point in the analysis is presumed to have been dislodged during a cleaning pulse. The test showed that a workable filter surface on a strong substrate has been developed but also pointed out several weak points in the construction that need further development. The test results are quite encouraging for the first two full size ceramic reinforced candle filters.
- Research Organization:
- Oak Ridge National Lab., TN (United States)
- OSTI ID:
- 140119
- Report Number(s):
- ORNL/FMP--93/1; CONF-9305135--; ON: DE94001091
- Country of Publication:
- United States
- Language:
- English
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