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Title: Testing and verification of granular filters for removal of particulate and alkalies. Final report

Abstract

This report describes the testing and evaluation of a shallow bed granular filter (GBF) concept for Pressurized, Fluidized Bed Combustion (PFBC) application. The GBF is a device on which the dustladen gas passes through a shallow bed of granular media, depositing the particulate matter on the surface of the bed forming a dust cake. The bed media is cleaned by a reverse flush that gently fluidizes the bed and elutriates the collected particulate matter from the system. A 500 acfm subpilot scale GBF was built and tested at simulated PFBC operating conditions. Two different GBF configurations have been evaluated accounting for over 220 hours of testing (cumulative) and 615 cleaning cycles. Test variables have included bed media, filter flow face velocity, backflush conditions and dust loading. In addition to the subpilot scale test work, a modified single bed, bench scale GBF unit was evaluated as an improved design approach for PFBC conditions. Results of this work showed that the overall performance of the GBF can be improved if the system can be cleaned without fluidizing the bed media. This has resulted in redefining backflush conditions and the choice of bed media. The possibility of utilizing the GBF to remove bothmore » particulate and alkali has also been explored. Implementing an alkali gettering media as part of the GBF bed media would be possible but would require significantly deeper beds than anticipated in the current shallow bed, GBF concept. 27 references, 135 figures, 40 tables.« less

Publication Date:
Research Org.:
Westinghouse Electric Corp., Pittsburgh, PA (USA). Research and Development Center
OSTI Identifier:
6020663
Report Number(s):
DOE/ET/17093-1741
ON: DE85007168
DOE Contract Number:  
AC21-80ET17093
Resource Type:
Technical Report
Resource Relation:
Other Information: Portions of this document are illegible in microfiche products. Original copy available until stock is exhausted
Country of Publication:
United States
Language:
English
Subject:
01 COAL, LIGNITE, AND PEAT; 20 FOSSIL-FUELED POWER PLANTS; FOSSIL-FUEL POWER PLANTS; ECONOMIC ANALYSIS; FLUIDIZED-BED COMBUSTION; OPERATING COST; GRANULAR BED FILTERS; DESIGN; ELUTRIATION; PERFORMANCE TESTING; HOT GAS CLEANUP; BENCH-SCALE EXPERIMENTS; BITUMINOUS COAL; DENITRIFICATION; DESULFURIZATION; DUSTS; EXPERIMENTAL DATA; MATHEMATICAL MODELS; MEDIUM PRESSURE; PARTICULATES; PRESSURE DEPENDENCE; SUBBITUMINOUS COAL; VERY HIGH TEMPERATURE; BLACK COAL; CARBONACEOUS MATERIALS; CHEMICAL REACTIONS; COAL; COMBUSTION; COST; DATA; ECONOMICS; ENERGY SOURCES; FILTERS; FOSSIL FUELS; FUELS; INFORMATION; MATERIALS; MECHANICAL FILTERS; NUMERICAL DATA; OXIDATION; PARTICLES; POWER PLANTS; PURIFICATION; SEPARATION PROCESSES; TESTING; THERMAL POWER PLANTS; THERMOCHEMICAL PROCESSES; 010800* - Coal, Lignite, & Peat- Waste Management; 200202 - Fossil-Fueled Power Plants- Waste Management- Noxious Gas & Particulate Emissions

Citation Formats

. Testing and verification of granular filters for removal of particulate and alkalies. Final report. United States: N. p., 1984. Web.
. Testing and verification of granular filters for removal of particulate and alkalies. Final report. United States.
. 1984. "Testing and verification of granular filters for removal of particulate and alkalies. Final report". United States.
@article{osti_6020663,
title = {Testing and verification of granular filters for removal of particulate and alkalies. Final report},
author = {},
abstractNote = {This report describes the testing and evaluation of a shallow bed granular filter (GBF) concept for Pressurized, Fluidized Bed Combustion (PFBC) application. The GBF is a device on which the dustladen gas passes through a shallow bed of granular media, depositing the particulate matter on the surface of the bed forming a dust cake. The bed media is cleaned by a reverse flush that gently fluidizes the bed and elutriates the collected particulate matter from the system. A 500 acfm subpilot scale GBF was built and tested at simulated PFBC operating conditions. Two different GBF configurations have been evaluated accounting for over 220 hours of testing (cumulative) and 615 cleaning cycles. Test variables have included bed media, filter flow face velocity, backflush conditions and dust loading. In addition to the subpilot scale test work, a modified single bed, bench scale GBF unit was evaluated as an improved design approach for PFBC conditions. Results of this work showed that the overall performance of the GBF can be improved if the system can be cleaned without fluidizing the bed media. This has resulted in redefining backflush conditions and the choice of bed media. The possibility of utilizing the GBF to remove both particulate and alkali has also been explored. Implementing an alkali gettering media as part of the GBF bed media would be possible but would require significantly deeper beds than anticipated in the current shallow bed, GBF concept. 27 references, 135 figures, 40 tables.},
doi = {},
url = {https://www.osti.gov/biblio/6020663}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1984},
month = {4}
}

Technical Report:
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