Industrial Gas Filtration and Generation Division

Industrial Gas Filtration and Generation Division - Flue Gas Sampling

Flue Gas Sampling


There are many requirements throughout industry where combustion /flue gases must be analyzed and recorded periodically for compliance to EPA regulations and to ensure maximum efficiency of the combustion device (burner / boiler).  Instrumentation used to perform this analysis are adversely effected by condensed contaminates, acidic and sulfuric gases and solid contaminates.  These contaminates can skew the analysis but more importantly ruin the internals of the instrument to the point where a complete rebuild is required.  Efficient removal of undesirable contaminates from a sample stream will ensure accurate analysis and trouble-free operation of the instrumentation.


Typical applications for sample filtration include stack gas or emissions sampling. These sampling applications have specific and unique filtration requirements depending on the analysis to be performed and the contaminates present in the sample stream. Quantitative measurement of excess oxygen, carbon dioxide and nitrogen oxides are unique to stack and flue gas sampling. Coalescing filtration is used widely in most sampling applications as an initial filtration stage to remove all condensables.  Additional secondary filtration requirements for removal of specific gas contaminates is best accomplished by
using a specialized bed of adsorbent. In most stack and flue gas sampling applications, instruments are most adversely 
affected by sulfur based acidic gases. These gases will condense and quickly corrode and ruin the sensitive sensors and internals of these instruments.


The secondary filter recommendation for removal of these contaminate gases should be an adsorbent bed . In most applications a specialized formulation of sodium and calcium hydroxides is the ideal media to remove these gases.


PARKER SOLUTIONS:  The Parker Balston disposable filter unit, packed with a mixed sodium and calcium
hydroxide adsorbent material is recommended. In applications where excessive condensate is expected, a Parker Balston disposable filter unit assembled with a high efficiency coalescing filter is installed upstream from the adsorbent filter which protects the adsorbent from becoming saturated and rendered inoperable. These filter  combinations will result in flawless
analysis with no downtime, no rework to the equipment and timely, expedient service to customers. Recognized as the industry leader in sample filtration and conditioning, Parker Balston flue gas filters are found in the majority of all instruments and analyzers as a supplied component.


Parker Industrial Gas Filtration and Generation Division 
4087 Walden Avenue
Lancaster, NY 14086

Fax: 877-857-3800