Catalytic fabric filtration for simultaneous NO{sub x} and particulate control. Quarterly technical progress report, July 1--September 30, 1993
The EERC approach to meeting the program objective involves the development of a CFF for simultaneous NO{sub x} and particulate control. The idea of applying either a permanent or throwaway catalyst to a high-temperature fabric filter for NO{sub x} control is not new. However, advances at OCF have shown that a high-activity catalyst can be applied to a high-temperature woven glass cloth, resulting in a fabric filter material that can operate at temperatures higher than commercially available, coated glass fabric. The NO{sub x} is removed by catalytic reduction with ammonia to form nitrogen and water. The catalyst employed at this time is vanadium-titanium, but the exact catalyst composition and the unique method of applying the catalyst to high-temperature glass fabric are the property of OCF. Other catalyst options are being evaluated by OCF in order to improve catalyst performance and minimize catalyst cost. Bench-scale experimental results have shown that over 90% NO{sub x} removal can be achieved, that the catalyst-fabric has promising self-abrasion characteristics, and that the potential exists for substantially reduced cost compared to conventional SCR and fabric filtration technologies. However, development of the technology required further evaluation of air-to-cloth ratio effects, ammonia slip, SO{sub 2} oxidation to SO{sub 3}, temperature cycling, catalyst-coated fabric preparation, fuel impacts, fabric cleaning (reverse-gas versus pulse-jet), catalyst life (poisoning and resistance to erosion), and filter performance/life (particulate control, differential pressure, and durability).
- Research Organization:
- Univ. of North Dakota, Grand Forks, ND (United States). Energy and Environmental Research Center
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC22-90PC90361
- OSTI ID:
- 10117674
- Report Number(s):
- DOE/PC/90361-T12; ON: DE94005761; BR: AA0505000
- Resource Relation:
- Other Information: PBD: Nov 1993
- Country of Publication:
- United States
- Language:
- English
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Catalytic fabric filtration for simultaneous NO{sub x} and particulate control. Quarterly technical progress report, October 1--December 31, 1992
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Related Subjects
FOSSIL-FUEL POWER PLANTS
AIR POLLUTION CONTROL
NITROGEN OXIDES
REDUCTION
PARTICULATES
FABRIC FILTERS
FABRICATION
CATALYSTS
PERFORMANCE
IMPREGNATION
BOILERS
VANADIUM
TITANIUM
CATALYTIC EFFECTS
SELECTIVE CATALYTIC REDUCTION
AMMONIA
SULFUR DIOXIDE
OXIDATION
PROGRESS REPORT
200202
NOXIOUS GAS AND PARTICULATE EMISSIONS