Evaluation of dust cake filtration at high temperature with effluence from an atmospheric fluidized-bed combustor

Technical Report · Wed Aug 01 04:00:00 EDT 1990

DOI:https://doi.org/10.2172/5902234· OSTI ID:5902234

Dennis, R. A.

In the spring of 1989, two separate test series were simultaneously conducted at the US Department of Energy's (DOE's) Morgantown Energy Technology Center (METC) to examine applied and fundamental behavior of dust cake filtration under high temperature and high pressure (HTHP) conditions. The purpose was to provide information on dust-cake filtration properties to gas stream cleanup researchers associated with the Tidd 70 megawatt (MW) pressurized fluidized-bed combustor (PFBC). The two test facilities included (1) a high-pressure natural-gas combustor with injected particulate, which was fed to two full-size candle filters; and (2) an atmospheric fluidized-bed combustor (AFBC) with coal and limestone sorbent to generate a particulate-laden combustion exhaust gas, which was sent to a single full-size candle filter and a small-scale disc filter. Several major conclusions from these studies are noted below. On average reducing the mean particulate size by 33% and the associated loading carried in the filtrate will increase the dust cake specific flow resistance (K{sub 2}) by 498%. High-temperature and high-pressure filtration can be successfully performed with ceramic candle filters at moderate filtration face velocities and reasonable system pressure drops. Off-line filter cleaning can produce a filter system with a higher apparent permeability than that produced from on-line filter cleaning at the same face velocity. 19 refs., 89 figs., 13 tabs.

• Research Organization: USDOE Morgantown Energy Technology Center, WV (USA)
• Sponsoring Organization: DOE; USDOE, Washington, DC (USA)
• OSTI ID: 5902234
• Report Number(s): DOE/METC-91/4105; ON: DE91002001
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010402* -- Coal
Lignite
& Peat-- Purification & Upgrading
010800 -- Coal
Lignite
& Peat-- Waste Management
AGGLOMERATION
ATMOSPHERIC PRESSURE
CARBONACEOUS MATERIALS
CARBONATE ROCKS
CERAMICS
CHEMICAL REACTIONS
COAL
COMBUSTION
COMBUSTORS
CONCENTRATORS
CYCLONE SEPARATORS
DATA
DIAGRAMS
DIMENSIONS
DUSTS
ENERGY SOURCES
EQUIPMENT
EXHAUST GASES
FILTERS
FILTRATION
FLOW RATE
FLOWSHEETS
FLUIDIZED-BED COMBUSTION
FLUIDIZED-BED COMBUSTORS
FLUIDS
FOSSIL FUELS
FUELS
GASEOUS WASTES
GASES
HIGH TEMPERATURE
HOT GAS CLEANUP
INERTIAL SEPARATORS
INFORMATION
LIMESTONE
MATERIALS
OPERATION
OXIDATION
PARTICLE SIZE
PERFORMANCE
PERMEABILITY
POLLUTION CONTROL EQUIPMENT
PRESSURE DROP
PRESSURIZATION
PURIFICATION
REMOVAL
ROCKS
SAMPLING
SEDIMENTARY ROCKS
SEPARATION EQUIPMENT
SEPARATION PROCESSES
SIZE
SORBENT INJECTION PROCESSES
TEST FACILITIES
THERMOCHEMICAL PROCESSES
THICKNESS
WASTES