Combined NO/sub x//SO/sub 2/ control with dry sorbents

Conference · Sun Jan 01 04:00:00 EST 1989

OSTI ID:6000250

Livengood, C D; Harkness, J B.L.

Argonne National Laboratory (ANL) has been conducting research on combined NO/sub x//SO/sub 2/ control systems. Recently, the research program has been focused on spray-dryer-based FGC systems and has involved research on NO/sub x/ removal enhancement through chemical additives and modified process conditions. Tests have been conducted in a laboratory-scale spray dryer at ANL, an intermediate-scale system at the Pittsburgh Energy Technology Center, and Argonne's commercial-scale spray-dryer/fabric-filter system. In addition, the performance of dry sorbent/additive combinations under a variety of conditions has been studied at ANL using a laboratory-scale fixed-bed reactor. The experimental conditions were selected to model the post air-preheater environment for a boiler firing high-sulfur coal, and to specifically address conditions expected in the fabric filter portion of a spray dryer or duct injection system. We describe the fixed-bed experimental facility and the results of both statistically designed and parametric experiment series conducted using a lime (Ca(OH)/sub 2/)sorbent and a variety of additives. 6 refs., 7 figs., 2 tabs.

• Research Organization: Argonne National Lab., IL (USA)
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 6000250
• Report Number(s): CONF-890692-18; ON: DE89015137
• 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
ADDITIVES
ALKALI METAL COMPOUNDS
ALKALINE EARTH METAL COMPOUNDS
CALCIUM COMPOUNDS
CALCIUM HYDROXIDES
CHALCOGENIDES
CHEMICAL REACTIONS
CHEMICAL REACTORS
CHLORIDES
CHLORINE COMPOUNDS
CORRELATIONS
DESULFURIZATION
DRYING
FLUIDS
FUEL GAS
FUELS
GAS FUELS
GASES
HALIDES
HALOGEN COMPOUNDS
HYDROGEN COMPOUNDS
HYDROXIDES
NITROGEN COMPOUNDS
NITROGEN OXIDES
OXIDES
OXYGEN COMPOUNDS
PERFORMANCE
SCREENING
SODIUM CHLORIDES
SODIUM COMPOUNDS
SODIUM HYDROXIDES
SORPTIVE PROPERTIES
SPRAY DRYING
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES
SURFACE PROPERTIES