Investigation of mercury control in baghouses with sorbents

Conference · Sun Dec 31 04:00:00 EST 1995

OSTI ID:257184

Dunham, G E; Miller, S J; Laudal, D L ^[1]; Chang, R ^[2]; Bergman, P D ^[3]

---

1. Univ. of North Dakota, Grand Forks, ND (United States). Energy and Environmental Research Center
2. Electric Power Research Inst., Palo Alto, CA (United States)
3. Dept. of Energy, Pittsburgh, PA (United States)

Activated carbon has potential as a sorbent for mercury control when injected upstream of existing particulate control devices on coal-fired boilers. A study, sponsored by the Electric Power Research Institute (EPRI) and the US Department of Energy (DOE), is being conducted at the University of North Dakota Energy and Environmental Research Center (EERC) to evaluate the effects of coal type, sorbent type, sorbent addition rate, collection media, and temperature on mercury removal in a pilot-scale combustion system. Results with three different coals show that mercury control is significantly affected by temperature, coal type, sorbent type, and sorbent addition rate. For all three coals, there was a significant amount of natural mercury capture, which was dependent on both coal type and temperature. A lignite-based activated carbon provided good mercury control at temperatures of 250 F and lower for all three coals. For one coal, the effectiveness of the lignite-activated carbon decreased rapidly at temperatures above 250 F. Mercury control with an iodine-impregnated activated carbon was highly coal dependent, providing good control for one coal and no control for another.

• OSTI ID: 257184
• Report Number(s): CONF-950952--
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
ACTIVATED CARBON
ADSORBENTS
ADSORPTION
AUGMENTATION
BAGHOUSES
BITUMINOUS COAL
COAL RANK
EFFICIENCY
EMISSION
MERCURY
PERFORMANCE TESTING
SUBBITUMINOUS COAL
TEMPERATURE DEPENDENCE