Ceramic hot-gas filter
Abstract
A ceramic hot-gas candle filter is described having a porous support of filament-wound oxide ceramic yarn at least partially surrounded by a porous refractory oxide ceramic matrix, and a membrane layer on at least one surface thereof. The membrane layer may be on the outer surface, the inner surface, or both the outer and inner surface of the porous support. The membrane layer may be formed of an ordered arrangement of circularly wound, continuous filament oxide ceramic yarn, a ceramic filler material which is less permeable than the filament-wound support structure, or some combination of continuous filament and filler material. A particularly effective membrane layer features circularly wound filament with gaps intentionally placed between adjacent windings, and a filler material of ceramic particulates uniformly distributed throughout the gap region. The filter can withstand thermal cycling during back pulse cleaning and is resistant to chemical degradation at high temperatures.
- Inventors:
- Issue Date:
- Research Org.:
- Allied-Signal Composites Inc
- Sponsoring Org.:
- USDOE, Washington, DC (United States)
- OSTI Identifier:
- 350308
- Patent Number(s):
- 5902363
- Application Number:
- PAN: 8-896,372
- Assignee:
- AlliedSignal Composites Inc., Newark, DE (United States)
- DOE Contract Number:
- AC21-94MC31214
- Resource Type:
- Patent
- Resource Relation:
- Other Information: PBD: 11 May 1999
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 01 COAL, LIGNITE, AND PEAT; 36 MATERIALS SCIENCE; HOT GAS CLEANUP; FILTERS; DESIGN; MECHANICAL PROPERTIES; FUEL GAS; DEASHING; CORROSION RESISTANCE
Citation Formats
Connolly, E S, Forsythe, G D, Domanski, D M, Chambers, J A, and Rajendran, G P. Ceramic hot-gas filter. United States: N. p., 1999.
Web.
Connolly, E S, Forsythe, G D, Domanski, D M, Chambers, J A, & Rajendran, G P. Ceramic hot-gas filter. United States.
Connolly, E S, Forsythe, G D, Domanski, D M, Chambers, J A, and Rajendran, G P. Tue .
"Ceramic hot-gas filter". United States.
@article{osti_350308,
title = {Ceramic hot-gas filter},
author = {Connolly, E S and Forsythe, G D and Domanski, D M and Chambers, J A and Rajendran, G P},
abstractNote = {A ceramic hot-gas candle filter is described having a porous support of filament-wound oxide ceramic yarn at least partially surrounded by a porous refractory oxide ceramic matrix, and a membrane layer on at least one surface thereof. The membrane layer may be on the outer surface, the inner surface, or both the outer and inner surface of the porous support. The membrane layer may be formed of an ordered arrangement of circularly wound, continuous filament oxide ceramic yarn, a ceramic filler material which is less permeable than the filament-wound support structure, or some combination of continuous filament and filler material. A particularly effective membrane layer features circularly wound filament with gaps intentionally placed between adjacent windings, and a filler material of ceramic particulates uniformly distributed throughout the gap region. The filter can withstand thermal cycling during back pulse cleaning and is resistant to chemical degradation at high temperatures.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue May 11 00:00:00 EDT 1999},
month = {Tue May 11 00:00:00 EDT 1999}
}