Permeation Behavior of Oxide Bonded SiC Ceramics at High Temperature and Prediction of Pressure Drop in Candle Filters
IR@CGCRI: CSIR-Central Glass and Ceramic Research Institute, Kolkata
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| Title |
Permeation Behavior of Oxide Bonded SiC Ceramics at High Temperature and Prediction of Pressure Drop in Candle Filters
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| Creator |
Dey, Atanu
Kayal, Nijhuma Chakrabarti, Omprakash Innocentini, Murilo D M |
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| Subject |
Engineering Materials
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| Description |
Oxide-bonded silicon carbide supports of porosity ranging from 33% to 47% were prepared by heating powder compacts (SiC, clay and alumina) at 1400 degrees C in air with graphite acting as a pore former. The supports were spray-coated with an aqueous slurry of fine SiC powder (d(50)=15 mu m), then sintered to produce a filtering layer with thickness ranging from 116 to 200 mu m and average pore size ranging from 5 to 20 mu m. Airflow tests were performed on both supports and coated filters at temperatures ranging from 25 degrees to 700 degrees C and superficial velocities ranging from 0.02 to 0.9 m.s(-1). Experimental permeability coefficients were used to simulate the pressure drop behavior of hypothetical candle filters for industrial combustion/gasification processes (biomass combustion in water-tube steam boilers (BCSB), pressurized fluidized-bed combustion (PFBC) and integrated gasification combined cycle (IGCC)). The simulated permeation properties of the hypothetical candles were compared to those of commercial hot gas filters.
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| Publisher |
Indian Ceramic Society
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| Date |
2022-04
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| Type |
Article
PeerReviewed |
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| Identifier |
Dey, Atanu and Kayal, Nijhuma and Chakrabarti, Omprakash and Innocentini, Murilo D M (2022) Permeation Behavior of Oxide Bonded SiC Ceramics at High Temperature and Prediction of Pressure Drop in Candle Filters. Transactions of the Indian Ceramic Society, 81 (2). pp. 59-67. ISSN 0371-750X
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| Relation |
http://cgcri.csircentral.net/5442/
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