Combined SO/sub x//NO/sub x/ removal in a high-sulfur spray-dryer/fabric-filter system

Conference · Fri Jan 01 04:00:00 EST 1988

OSTI ID:6513088

Livengood, C D; Huang, H S; Allen, J W; Farber, P S

Argonne National Laboratory (ANL) has been conducting research on combined nitrogen oxides (NO/sub x/) and sulfur dioxide (SO/sub 2/) control. A major portion of this program has been centered around the spray-dryer/fabric-filter system that provides flue-gas cleanup (FGC) for Argonne's largest, coal-fired boiler. Under the combined SO/sub x//NO/sub x/ research program, Argonne conducted two series of field tests on the spray-dryer FGC system. The conditions for the tests were selected on the basis of previous work by Niro Atomizer (using the ANL system), laboratory research at ANL, and intermediate-scale tests at the Pittsburgh Energy Technology Center (PETC). Both changes in process operating conditions and addition of caustic soda (NaOH) to the lime slurry were employed. The results indicated that, under certain operating conditions, it is possible to achieve significant levels of combined control. The addition of NaOH was not essential, but did enhance removal of NO/sub x/. Also, higher levels of SO/sub 2/ in the inlet flue gas were found to be beneficial, and changes in particle characteristics that developed in the drying process were found to play a role that has implications for other technologies based on dry sorbents. 6 refs., 10 figs., 3 tabs.

• Research Organization: Argonne National Lab., IL (USA)
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 6513088
• Report Number(s): CONF-881028-1; ON: DE89007266
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010800 -- Coal
Lignite
& Peat-- Waste Management
20 FOSSIL-FUELED POWER PLANTS
200202* -- Fossil-Fueled Power Plants-- Waste Management-- Noxious Gas & Particulate Emissions
ALKALI METAL COMPOUNDS
BAGHOUSES
CHALCOGENIDES
CONTROL
DRYING
EFFICIENCY
EQUIPMENT
FABRIC FILTERS
FILTERS
FLUE GAS
GASEOUS WASTES
HYDROGEN COMPOUNDS
HYDROXIDES
NITRATES
NITROGEN COMPOUNDS
NITROGEN OXIDES
OXIDES
OXYGEN COMPOUNDS
POLLUTION CONTROL
POLLUTION CONTROL EQUIPMENT
REMOVAL
SODIUM COMPOUNDS
SODIUM HYDROXIDES
SPRAY DRYING
SULFUR COMPOUNDS
SULFUR OXIDES
TEMPERATURE EFFECTS
WASTES