Method For Enhanced Gas Monitoring In High Density Flow Streams
Abstract
A method for conducting laser absorption measurements in high temperature process streams having high levels of particulate matter is disclosed. An impinger is positioned substantially parallel to a laser beam propagation path and at upstream position relative to the laser beam. Beam shielding pipes shield the beam from the surrounding environment. Measurement is conducted only in the gap between the two shielding pipes where the beam propagates through the process gas. The impinger facilitates reduced particle presence in the measurement beam, resulting in improved SNR (signal-to-noise) and improved sensitivity and dynamic range of the measurement.
- Inventors:
-
- Oak Forest, IL
- Countryside, IL
- Lisle, IL
- Issue Date:
- Research Org.:
- American Air Liquide
- OSTI Identifier:
- 879926
- Patent Number(s):
- 6943886
- Application Number:
- 10/353786
- Assignee:
- Air Liquide America, L.P. (Houston, TX); L'Air Liquide- Societe Anonyme a'Directoire et Conseil de Surveillance pour l'Etude (Paris, FR)
- Patent Classifications (CPCs):
-
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- DOE Contract Number:
- FC36-00CH11030
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
Citation Formats
Von Drasek, William A, Mulderink, Kenneth A, and Marin, Ovidiu. Method For Enhanced Gas Monitoring In High Density Flow Streams. United States: N. p., 2005.
Web.
Von Drasek, William A, Mulderink, Kenneth A, & Marin, Ovidiu. Method For Enhanced Gas Monitoring In High Density Flow Streams. United States.
Von Drasek, William A, Mulderink, Kenneth A, and Marin, Ovidiu. Tue .
"Method For Enhanced Gas Monitoring In High Density Flow Streams". United States. https://www.osti.gov/servlets/purl/879926.
@article{osti_879926,
title = {Method For Enhanced Gas Monitoring In High Density Flow Streams},
author = {Von Drasek, William A and Mulderink, Kenneth A and Marin, Ovidiu},
abstractNote = {A method for conducting laser absorption measurements in high temperature process streams having high levels of particulate matter is disclosed. An impinger is positioned substantially parallel to a laser beam propagation path and at upstream position relative to the laser beam. Beam shielding pipes shield the beam from the surrounding environment. Measurement is conducted only in the gap between the two shielding pipes where the beam propagates through the process gas. The impinger facilitates reduced particle presence in the measurement beam, resulting in improved SNR (signal-to-noise) and improved sensitivity and dynamic range of the measurement.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2005},
month = {9}
}
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