Cristin-resultat-ID: 1121396
Sist endret: 19. mai 2014, 09:44
NVI-rapporteringsår: 2014
Resultat
Vitenskapelig artikkel
2014

Online monitoring of aluminium primary production gas composition by use of Fourier-transform infrared spectroscopy

Bidragsytere:
  • Thor Anders Aarhaug
  • Alain Marc C Ferber
  • Ole Sigmund Kjos og
  • Heiko Gaertner

Tidsskrift

Light Metals
ISSN 0147-0809
NVI-nivå 1

Om resultatet

Vitenskapelig artikkel
Publiseringsår: 2014
Publisert online: 2014
Trykket: 2014
Sider: 647 - 652
Open Access

Beskrivelse Beskrivelse

Tittel

Online monitoring of aluminium primary production gas composition by use of Fourier-transform infrared spectroscopy

Sammendrag

Online monitoring of aluminium primary production raw gas is challenging due to the high concentration of HF in the presence of water. Tunable Diode Laser (TDL) analyzers retrofitted with sapphire optical windows allow for online monitoring of raw gas composistion. These systems are however limited to one or two gas constituents. In order to make use of multi-component analyzers like Fourier-Transform InfraRed Spectrometers (FTIR), HF must be selectively removed by filtration. This work presents some results from complete mapping of raw gas composition by comparing results from HF filtrated as well as non-filtrated measurements. The multivariate calibration models established for mapping of the raw gas is discussed. Open-path FTIR spectroscopy was applied in order to quantify fugitive emissions of HF and SO2. Quantitation showed good correlation with reported emissions. Monitoring of fugitive PFC emissions was also evaluated.

Bidragsytere

Aktiv cristin-person

Thor Anders Aarhaug

  • Tilknyttet:
    Forfatter
    ved Bærekraftig energiteknologi ved SINTEF AS

Alain Marc C Ferber

  • Tilknyttet:
    Forfatter
    ved Smart Sensors and Microsystems ved SINTEF AS

Ole Sigmund Kjos

  • Tilknyttet:
    Forfatter
    ved Metallproduksjon og prosessering ved SINTEF AS

Heiko Gaertner

  • Tilknyttet:
    Forfatter
    ved Institutt for materialteknologi ved Norges teknisk-naturvitenskapelige universitet
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