Application of the diffusion screen technique to the determination of gaseous mercury and mercury (II) chloride in flue gases

Kari Larjava, Timo Laitinen, Tiina Kiviranta, Volker Siemens, Dieter Klockow

Research output: Contribution to journalArticleScientificpeer-review

17 Citations (Scopus)

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. Using this technique, collection efficiencies for both metallic mercury and mercury(II)chloride are well above 90% at temperatures up to more than 100°C and at gas flow rates up to 6 1/min. SO2, NO and H2O do not have significant effects on the collection efficiency. The method is very convenient considering practical flue gas measurements, because the screen can be used in a compact filter holder suitable for in-stack measurements.

Original languageEnglish
Pages (from-to)65-73
Number of pages9
JournalInternational Journal of Environmental Analytical Chemistry
Volume52
Issue number1-4
DOIs
Publication statusPublished - 1993
MoE publication typeA1 Journal article-refereed

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