ESP (electrostatic precipitator) tests at Toronto: Test results: Part 3. [Hydrate Addition at Low Temperature for the removal of SO/sub 2/]
''Hydrate Addition at Low Temperature'' or HALT is a dry calcium-based hydrate injection process for the removal of SO/sub 2/ from flue gases off a sulfur bearing fuel. In this process the hydrate is pneumatically conveyed and injected into the flue gas stream as a dry particulate. The flue gas is cooled downstream of the hydrate injection location by spraying the gas with a stream of finely atomized water droplets. The flue gas is cooled to as low a temperature as possible by spraying water on it, maintaining an approach to saturation temperature of 20/degree/F or higher. Temperatures lower than this could cause potential problems with moisture condensation on cold duct walls, the particulate removal devices as ESP/baghouse. The waste product from this process is the dry disposable solids which differed considerably from the wet cake solids obtained from a wet FGD process. Tests performed on the electrostatic precipitator are described. The primary tasks performed were: (1) measurement of the particle size distribution, resistivity, and mass concentration of the fly ash or ash-sorbent mixture entering the ESP, (2) measurement of the collection efficiency of the ESP, (3) recording the electrical operating conditions and the voltage-current characteristics of the ESP, and (4) determination of the utilization of sorbent entering the ESP, and the additional utilization/SO/sub 2/ removal occurring within the precipitator. Chemical analyses were performed on fly ash and ash-sorbent mixtures. 30 figs., 22 tabs.
- Research Organization:
- Dravo Lime Co., Pittsburgh, PA (USA)
- DOE Contract Number:
- AC22-85PC81012
- OSTI ID:
- 6117048
- Report Number(s):
- DOE/PC/81012-T1-Pt.3; ON: DE89012530
- Resource Relation:
- Other Information: Portions of this document are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
01 COAL, LIGNITE, AND PEAT
CALCIUM COMPOUNDS
EFFICIENCY
ELECTROSTATIC PRECIPITATORS
TESTING
HOT GAS CLEANUP
HYDRATES
PARTICULATES
REMOVAL
SULFUR OXIDES
BAGHOUSES
COMBUSTORS
CORROSION
ENGINEERING DRAWINGS
FLUE GAS
GAS COOLING
LEACHING
NOZZLES
PERFORMANCE
PILOT PLANTS
PROGRESS REPORT
SOLIDS
SPRAY COOLING
WATER
ALKALINE EARTH METAL COMPOUNDS
CHALCOGENIDES
CHEMICAL REACTIONS
COOLING
DIAGRAMS
DISSOLUTION
DOCUMENT TYPES
EQUIPMENT
FUNCTIONAL MODELS
GASEOUS WASTES
HYDROGEN COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PARTICLES
POLLUTION CONTROL EQUIPMENT
PURIFICATION
SEPARATION PROCESSES
SULFUR COMPOUNDS
WASTES
200202* - Fossil-Fueled Power Plants- Waste Management- Noxious Gas & Particulate Emissions
010800 - Coal
Lignite
& Peat- Waste Management