Method of producing monolithic ceramic cross-flow filter

Patent · Wed Dec 31 23:00:00 EST 1997

OSTI ID:871359

Larsen, David A ^[1]; Bacchi, David P ^[2]; Connors, Timothy F ^[3]

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1. Clifton Park, NY
2. Schenectady, NY
3. Watervliet, NY

Ceramic filter of various configuration have been used to filter particulates from hot gases exhausted from coal-fired systems. Prior ceramic cross-flow filters have been favored over other types, but those previously horn have been assemblies of parts somehow fastened together and consequently subject often to distortion or delamination on exposure hot gas in normal use. The present new monolithic, seamless, cross-flow ceramic filters, being of one-piece construction, are not prone to such failure. Further, these new products are made by novel casting process which involves the key steps of demolding the ceramic filter green body so that none of the fragile inner walls of the filter is cracked or broken.

• Research Organization: Blasch Precision Ceramics, Inc., Albany, NY (US)
• DOE Contract Number: FG02-94ER81718
• Assignee: Blasch Precision Ceramics, Inc. (Albany, NY)
• Patent Number(s): US 5716559
• OSTI ID: 871359
• Country of Publication: United States
• Language: English

Related Subjects

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assemblies
broken
casting
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ceramic
ceramic cross-flow
ceramic filter
coal-fired
configuration
consequently
construction
cracked
cross-flow
delamination
demolding
distortion
exhausted
exposure
failure
fastened
favored
filter
filters
fragile
gas
gases
gases exhausted
green
horn
hot
hot gas
hot gases
inner
inner wall
inner walls
involves
key
method
monolithic
monolithic ceramic
normal
novel
one-piece
particulates
previously
prior
process
producing
products
prone
seamless
steps
subject
systems
types
various
various configuration
walls