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Title: Grimethorpe High-Temperature/High-Pressure Gas Filter Experimental Program. Volume 2, Preliminary report on the filter performance: Final report

Abstract

This report presents the results together with a preliminary assessment of the performance of an EPRI high-temperature, high-pressure (HTHP) filter module containing an array of 130 porous ceramic elements. The module operated on combustion gases from the Grimethorpe PFBC, typically at 850{degrees}C and 10 bar, which passed through a cyclone prior to entering the filter module. In contrast with cyclones, an effective HTHP filter would satisfy environmental regulations regarding atmospheric dust emission, as well as provide additional protection from erosion to a downstream gas turbine. Tests were performed to study not only the filtration performance but also the durability of the filter elements. A considerable amount of instrumentation was fitted into the filter module in order to observe the cyclic pressure and temperature effects caused by the cleaning pulses of cool compressed air. The energy consumption of the filter and the fluid dynamics of the reverse-jet-cleaning pulses were investigated. The filter operated for just over 850 hours, treating dust concentrations ranging from 900 to 3500 ppmw and size distributions with mean particle sizes of 2 to 6 microns. The face velocity of the gases treated ranged from 0.01 to 0.07 m/s, leading to a maximum gas flow rate of 4.5more » kg/s. The resulting pressure drops across the tubesheet ranged from 25 to 260 mbar. During normal operation, the maximum dust penetration through the filter was 16 ppmw, which is well below the present US air emission limits. The length of the operation and the range of the experimental parameters make the HTHP filter trials at Grimethorpe the MOSL significant by far on the world scene to date.« less

Publication Date:
Research Org.:
Electric Power Research Inst., Palo Alto, CA (United States); Grimethorpe PFBC Establishment (United Kingdom)
Sponsoring Org.:
Electric Power Research Inst., Palo Alto, CA (United States)
OSTI Identifier:
10184284
Report Number(s):
EPRI-TR-100499-Vol.2
ON: UN93001416
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: Sep 1992
Country of Publication:
United States
Language:
English
Subject:
01 COAL, LIGNITE, AND PEAT; COAL; FLUIDIZED-BED COMBUSTION; HOT GAS CLEANUP; PARTICULATES; FILTRATION; FILTERS; PERFORMANCE; PRESSURIZATION; DESIGN; REMOVAL; OPERATION; FLOWSHEETS; TEMPERATURE RANGE 0400-1000 K; MEDIUM PRESSURE; CERAMICS; EXPERIMENTAL DATA; GAS TURBINES; 014000; 010402; COMBUSTION; PURIFICATION AND UPGRADING

Citation Formats

. Grimethorpe High-Temperature/High-Pressure Gas Filter Experimental Program. Volume 2, Preliminary report on the filter performance: Final report. United States: N. p., 1992. Web.
. Grimethorpe High-Temperature/High-Pressure Gas Filter Experimental Program. Volume 2, Preliminary report on the filter performance: Final report. United States.
. 1992. "Grimethorpe High-Temperature/High-Pressure Gas Filter Experimental Program. Volume 2, Preliminary report on the filter performance: Final report". United States.
@article{osti_10184284,
title = {Grimethorpe High-Temperature/High-Pressure Gas Filter Experimental Program. Volume 2, Preliminary report on the filter performance: Final report},
author = {},
abstractNote = {This report presents the results together with a preliminary assessment of the performance of an EPRI high-temperature, high-pressure (HTHP) filter module containing an array of 130 porous ceramic elements. The module operated on combustion gases from the Grimethorpe PFBC, typically at 850{degrees}C and 10 bar, which passed through a cyclone prior to entering the filter module. In contrast with cyclones, an effective HTHP filter would satisfy environmental regulations regarding atmospheric dust emission, as well as provide additional protection from erosion to a downstream gas turbine. Tests were performed to study not only the filtration performance but also the durability of the filter elements. A considerable amount of instrumentation was fitted into the filter module in order to observe the cyclic pressure and temperature effects caused by the cleaning pulses of cool compressed air. The energy consumption of the filter and the fluid dynamics of the reverse-jet-cleaning pulses were investigated. The filter operated for just over 850 hours, treating dust concentrations ranging from 900 to 3500 ppmw and size distributions with mean particle sizes of 2 to 6 microns. The face velocity of the gases treated ranged from 0.01 to 0.07 m/s, leading to a maximum gas flow rate of 4.5 kg/s. The resulting pressure drops across the tubesheet ranged from 25 to 260 mbar. During normal operation, the maximum dust penetration through the filter was 16 ppmw, which is well below the present US air emission limits. The length of the operation and the range of the experimental parameters make the HTHP filter trials at Grimethorpe the MOSL significant by far on the world scene to date.},
doi = {},
url = {https://www.osti.gov/biblio/10184284}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Sep 01 00:00:00 EDT 1992},
month = {Tue Sep 01 00:00:00 EDT 1992}
}

Technical Report:
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