Ceramic filters for removal of particles from hot gas streams

Conference · Tue Jun 01 04:00:00 EDT 1993

OSTI ID:140679

Abrams, R F; Paquette, P; Roberts, D L ^[1]

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1. CeraMem Corp., Waltham, MA (United States)

The goal of this Phase II SBIR program is demonstration of the performance of a novel ceramic membrane-coated monolith filter for removing particles from hot gas streams from advanced coal conversion processes. The filter construction is based on a multiple-passageway porous ceramic monolith that has passageways coated with a ceramic membrane and alternate, adjacent monolith passageways plugged to form a dead-ended filter. During filtration, dirty gas enters passageways open at the inlet end face of the filter and particulate matter is trapped within the inlet passageways. The filtered gas passes through the internal walls of the filter and exits from outlet passageways at the opposing end face of the monolith. Filter regeneration is performed periodically by backpulsing. Prototype filters of this type with up to five square feet of filter area were fabricated and tested successfully in the Phase I program. The primary objectives of the Phase II program are development of full-scale ceramic filters, demonstration of full-scale filters in field trials, and full-scale system design and costing. The first year of the program was devoted primarily to selection and evaluation of materials for making filter elements, development of procedures to fabricate full-size ceramic filters (37 ft{sup 2} of filtration area), and evaluation of possible sites for extended field tests of prototype filter systems. Thermal shock and thermal cycling tests in the laboratory were performed to demonstrate acceptable thermal durability of all filter materials, including the monolith support, its ceramic membrane coating, and the monolith passageway plugging cement. In addition, procedures were developed for fabricating full-scale filters, and several full-scale filters have been produced.

• Research Organization: USDOE Morgantown Energy Technology Center, WV (United States)
• DOE Contract Number: FG02-90ER80896
• OSTI ID: 140679
• Report Number(s): DOE/METC--93/6131; CONF-9306148--; ON: DE93000289
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
20 FOSSIL-FUELED POWER PLANTS
CERAMICS
CLEANING
COAL GASIFICATION
FILTERS
FILTRATION
FOSSIL-FUEL POWER PLANTS
FUEL GAS
HOT GAS CLEANUP
PARTICULATES
PERFORMANCE
REMOVAL