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Title: 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 = {1999},
month = {5}
}