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Gas visualization of industrial hydrocarbon emissions

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Author

Summary, in English

Gases leaking from a polyethene plant and a cracker plant were visualized with the gas-correlation imaging technique. Ethene escaping from flares due to incomplete or erratic combustion was monitored. A leakage at a high-pressure reactor tank could be found and visualized by scanning the camera system over the industrial site. The image processing methods rely on the information from three simultaneously captured images. A direct and a gas-filtered infrared image are recorded with a split-mirror telescope through a joint band-pass filter. The resulting path-integrated gas concentration image, derived from the two infrared images, is combined with a visible image of the scene. The gas-correlation technique also has the potential to estimate the flux in the gas plume by combining a wind vector map, derived by cross-correlating the images in time, with a calibrated gas path-integrated concentration image. The principles of the technique are outlined and its potential discussed.

Department/s

Publishing year

2004

Language

English

Pages

1443-1451

Publication/Series

Optics Express

Volume

12

Issue

7

Document type

Journal article

Publisher

Optical Society of America

Topic

  • Atom and Molecular Physics and Optics

Keywords

  • Imaging systems : Infrared imaging
  • Remote sensing and sensors : Air pollution monitoring
  • Spectroscopy : Spectroscopy
  • infrared
  • Detectors : Infrared

Status

Published

ISBN/ISSN/Other

  • ISSN: 1094-4087