Some gases are inherently corrosive while others are soluble and can produce acids when dissolved in condensate that is formed as gases cool. If these gases do not require analysis, the best approach is to remove them before analysis.
Ideally, the sampling system in these cases should be designed to continuously extract, filter, and scrub the flue gas before it goes to the gas analyzer.
Our preferred approach is to filter the gas at the sample point while it is still hot. This ensures that the particulate is removed prior to formation of condensate. After that, condensate formation may occur freely without risk of creating a particulate slurry and plugging the sample lines.
The 7240 / 7300 Series Systems have been designed for this purpose. The sample gases are drawn into the high temp probe and continue on into the heated particulate filter. Next, they travel to the water wash system where they are cooled and scrubbed of corrosives. They are then sent to the gas analyzer cabinet for final analysis.
FEATURES
- Economical and reliable sample gas cleaning system
- Allows analysis of acidic flue gases
- Can be used on samples with high particulate
- Only small amount of 'make-up' water required
We have used these systems on medical waste incinerators, municipal waste gasifiers, and other processes that produce corrosive or aggressive gases.
For information on these and other gas analyzer systems, give Mike or Dave at Nova a call, or send us an e-mail.
1-800-295-3771
sales at nova-gas dot com
websales at nova-gas dot com
http://www.nova-gas.com/
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http://www.linkedin.com/company/nova-analytical-systems-inc-
http://www.tenovagroup.com/
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