The combined SOx/NOx/air toxics reduction process using activated coke and flue gas clean up

Conference · Tue Oct 01 00:00:00 EDT 1996

OSTI ID:370396

The dry desulfurization, denitrification and air toxics removal process using activated coke (AC) has been commercially adapted for flue gas clean up of a power plant, an oil refinery plant, an iron ore sintering plant, and a refuse incinerator. This process can achieve 100% removal of SO{sub x}, over 80% removal of NO{sub x} and effective removal of air toxics such as Hg, HCL, dioxines, etc., by contacting flue gas with AC and injecting NH{sub 3} for DeNO{sub x} at temperature range of about 100-200{degrees}C. For flue gas treatment, AC has several functions, which basically depends on the chemical surface group on AC inner surface. As adsorbent, AC can adsorb SO{sub x} at the relatively basic oxygen group site, where the adsorbed SO{sub x} is stored as sulfuric acid into micropore structure of AC. As catalyst, AC can decompose NO{sub x} catalytically with addition of NH{sub 3}. The catalytic activity (NO{sub x} removal efficiency) correlates with oxygen and nitrogen contents of AC.

• OSTI ID: 370396
• Report Number(s): CONF-960376-; TRN: 96:003805-0448
• Resource Relation: Conference: Spring national meeting of the American Chemical Society (ACS), New Orleans, LA (United States), 24-28 Mar 1996; Other Information: PBD: 1996; Related Information: Is Part Of 211th ACS national meeting; PB: 2284 p.
• Country of Publication: United States
• Language: English

Related Subjects

20 FOSSIL-FUELED POWER PLANTS
01 COAL, LIGNITE, AND PEAT
02 PETROLEUM
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
COKE
SURFACE PROPERTIES
SORPTIVE PROPERTIES
FLUE GAS
AIR POLLUTION CONTROL
SULFUR OXIDES
ADSORPTION
NITROGEN OXIDES
DECOMPOSITION
EFFICIENCY
DESULFURIZATION
DENITRIFICATION
SULFURIC ACID
ACTIVATED CARBON
MERCURY
DIOXIN
AMMONIA
FOSSIL-FUEL POWER PLANTS