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Title: Material characterization of the clay bonded silicon carbide candle filters and ash formations in the W-APF system after 500 hours of hot gas filtration at AEP. Appendix to Advanced Particle Filter: Technical progress report No. 11, January--March 1993

Abstract

(1) After 500 hours of operation in the pressurized fluidized-bed combustion gas environment, the fibrous outer membrane along the clay bonded silicon carbide Schumacher Dia Schumalith candles remained intact. The fibrous outer membrane did not permit penetration of fines through the filter wall. (2) An approximate 10-15% loss of material strength occurred within the intact candle clay bonded silicon carbide matrix after 500 hours of exposure to the PFBC gas environment. A relatively uniform strength change resulted within the intact candles throughout the vessel (i.e., top to bottom plenums), as well as within the various cluster ring positions (i.e., outer versus inner ring candle filters). A somewhat higher loss of material strength, i.e., 25% was detected in fractured candle segments removed from the W-APF ash hopper. (3) Sulfur which is present in the pressurized fluidized-bed combustion gas system induced phase changes along the surface of the binder which coats the silicon carbide grains in the Schumacher Dia Schumalith candle filter matrix.

Authors:
Publication Date:
Research Org.:
Westinghouse Electric Corp., Pittsburgh, PA (United States). Science and Technology Center
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
10182071
Report Number(s):
DOE/MC/26042-3449
ON: DE94000450
DOE Contract Number:
FC21-89MC26042
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: 5 Apr 1993
Country of Publication:
United States
Language:
English
Subject:
20 FOSSIL-FUELED POWER PLANTS; HOT GAS CLEANUP; TEST FACILITIES; FILTERS; DESIGN; MATERIALS; PROGRESS REPORT; PERFORMANCE TESTING; MECHANICAL PROPERTIES; FLUIDIZED-BED COMBUSTORS; PRESSURIZATION; SILICON CARBIDES; 200202; NOXIOUS GAS AND PARTICULATE EMISSIONS

Citation Formats

Alvin, M.A. Material characterization of the clay bonded silicon carbide candle filters and ash formations in the W-APF system after 500 hours of hot gas filtration at AEP. Appendix to Advanced Particle Filter: Technical progress report No. 11, January--March 1993. United States: N. p., 1993. Web. doi:10.2172/10182071.
Alvin, M.A. Material characterization of the clay bonded silicon carbide candle filters and ash formations in the W-APF system after 500 hours of hot gas filtration at AEP. Appendix to Advanced Particle Filter: Technical progress report No. 11, January--March 1993. United States. doi:10.2172/10182071.
Alvin, M.A. Mon . "Material characterization of the clay bonded silicon carbide candle filters and ash formations in the W-APF system after 500 hours of hot gas filtration at AEP. Appendix to Advanced Particle Filter: Technical progress report No. 11, January--March 1993". United States. doi:10.2172/10182071. https://www.osti.gov/servlets/purl/10182071.
@article{osti_10182071,
title = {Material characterization of the clay bonded silicon carbide candle filters and ash formations in the W-APF system after 500 hours of hot gas filtration at AEP. Appendix to Advanced Particle Filter: Technical progress report No. 11, January--March 1993},
author = {Alvin, M.A.},
abstractNote = {(1) After 500 hours of operation in the pressurized fluidized-bed combustion gas environment, the fibrous outer membrane along the clay bonded silicon carbide Schumacher Dia Schumalith candles remained intact. The fibrous outer membrane did not permit penetration of fines through the filter wall. (2) An approximate 10-15% loss of material strength occurred within the intact candle clay bonded silicon carbide matrix after 500 hours of exposure to the PFBC gas environment. A relatively uniform strength change resulted within the intact candles throughout the vessel (i.e., top to bottom plenums), as well as within the various cluster ring positions (i.e., outer versus inner ring candle filters). A somewhat higher loss of material strength, i.e., 25% was detected in fractured candle segments removed from the W-APF ash hopper. (3) Sulfur which is present in the pressurized fluidized-bed combustion gas system induced phase changes along the surface of the binder which coats the silicon carbide grains in the Schumacher Dia Schumalith candle filter matrix.},
doi = {10.2172/10182071},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Apr 05 00:00:00 EDT 1993},
month = {Mon Apr 05 00:00:00 EDT 1993}
}

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