Principle, calibration, and application of the in situ alkali chloride monitor

Forsberg, Christer (author): Vattenfall AB Nordic Heat, S-162 87 Stockholm, Sweden

Broström, Markus, 1977- (author): Umeå universitet,Energiteknik och termisk processkemi

Backman, Rainer, 1952- (author): Umeå universitet,Energiteknik och termisk processkemi

Edvardsson, Elin (author): Vattenfall Research and Development AB, S-814 26 Älvkarleby, Sweden

Badiei, Shahriar (author): Vattenfall Research and Development AB, S-814 26 Älvkarleby, Sweden

Berg, Magnus (author): Vattenfall Research and Development AB, S-814 26 Älvkarleby, Sweden

Kassman, Håkan (author): Vattenfall Power Consultant AB, Box 1046, S-611 29 Nyköping, Sweden

(creator_code:org_t)

American Institute of Physics, 2009
2009
English.
In: Review of Scientific Instruments. - : American Institute of Physics. - 0034-6748 .- 1089-7623. ; 80:2, s. 023104-1-023104-4

Related links:: http://link.aip.org/...; show more...; https://urn.kb.se/re...; https://doi.org/10.1...; show less...

Abstract Subject headings

The extended use of biomass for heat and power production has caused increased operational problems with fouling and high-temperature corrosion in boilers. These problems are mainly related to the presence of alkali chlorides (KCl and NaCl) at high concentrations in the flue gas. The In-Situ Alkali Chloride Monitor (IACM) was developed by Vattenfall Research and Development AB for measuring the alkali chloride concentration in hot flue gases (>650 oC). The measurement technique is based on molecular differential absorption spectroscopy in the UV range. Simultaneous measurement of SO2 concentration is also possible. The measuring range is 1-50 ppm for the sum of KCl and NaCl concentrations, and 4-750 ppm for SO2. This paper describes the principle of the IACM as well as its calibration. Furthermore, an example of its application in an industrial boiler is given.

By the author/editor: Forsberg, Christ ...; Broström, Markus ...; Backman, Rainer, ...; Edvardsson, Elin; Badiei, Shahriar; Berg, Magnus; show more...; Kassman, Håkan; show less...

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