Filter for determination of mercury in exhaust gases

Details Filter for determination of mercury in exhaust gases Filter for determination of mercury in exhaust gases

2008-05-06

2008-05-06

Warden, Jill (Department: 1797)

Chemistry: analytical and immunological testing

Metal or metal containing

Zn, cd, hg, sc, y, or actinides, or lanthanides

C422S083000, C422S086000, C422S088000, C422S091000

Reexamination Certificate

active

07368289

ABSTRACT:
An apparatus, process, coating, and filter for the accurate measurement of total mercury concentration in flue gas. In a preferred aspect, the concentrations of both elemental and oxidized mercury are preserved by the apparatus for analysis. Accordingly, embodiments of the present apparatus and process can be used to determine regulatory compliance or for process control measurement.

REFERENCES:
patent: 4161883 (1979-07-01), Laird et al.
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patent: 5879948 (1999-03-01), Van Pelt et al.
patent: 6200816 (2001-03-01), Farber et al.
patent: 6475802 (2002-11-01), Schaedlich et al.
patent: 6736883 (2004-05-01), Sjostrom et al.
patent: 7144736 (2006-12-01), Noda et al.
Declaration of inventor Thomas Baldwin regarding experimental use transaction for first prototype not previously used or tested, dated Oct. 17, 2004.
Liu, Kunlei, et al. “Application of PS Analytical Continuous Mercury Monitor to Utility Unit.” Air Quality IV, Sep. 22-24, 2003.
Kilgroe, James. “Fundamental Science and Engineering of Mercury Control in Coal-Fired Power Plants.”
Chu, Paul, et al. “‘Longer-Term’ Mercury Emissions Variability from Coal-Fired Power Plants.”
Sjostrom, Sharon, et al. “Performance Evaluation of Inertial Separation Probes for Vapor-Phase Mercury Measurements.”
“Heated Stack Filter Head Assembly Series 30 and 40 Instruction Manual.” Probe Manual 30-40 Series, Nov. 14, 1997.

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