APPLICATION OF THE DIFFUSION SCREEN TECHNIQUE TO THE DETERMINATION OFGASEOUS MERCURY AND MERCURY(II) CHLORIDE IN FLUE-GASES

Authors
LARJAVA K LAITINEN T KIVIRANTA T SIEMENS V KLOCKOW D
Citation
K. Larjava et al., APPLICATION OF THE DIFFUSION SCREEN TECHNIQUE TO THE DETERMINATION OFGASEOUS MERCURY AND MERCURY(II) CHLORIDE IN FLUE-GASES, International journal of environmental analytical chemistry, 52(1-4), 1993, pp. 65-73
Citations number
15
Categorie Soggetti
Environmental Sciences","Chemistry Analytical
Journal title
International journal of environmental analytical chemistry → ACNP
ISSN journal
03067319
Volume
52
Issue
1-4
Year of publication
1993
Pages
65 - 73
Database
ISI
SICI code
0306-7319(1993)52:1-4<65:AOTDST>2.0.ZU;2-P
Abstract
A technique based on the use of a gold-coated diffusion screen for the collection of gaseous mercury species in flue gases is introduced. Us ing this technique, collection efficiencies for both metallic mercury and mercury(II)chloride are well above 90% at temperatures up to more than 100-degrees-C and at gas flow rates up to 61/min. SO2, NO and H2O do not have significant effects on the collection efficiency. The met hod is very convenient considering practical flue gas measurements, be cause the screen can be used in a compact filter holder suitable for i n-stack measurements.