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Hydrocarbon VOC's in Water
Laboratory Portable Monitor Model 204-L
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Continuous analysis of cooling tower water & 20
years experience |
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Sample Transfer Stripper (STS) |
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Lower detectable limit 1 ppb w thru ppm w to
saturation |
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Liquid validation by PermTube |
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4-20ma & RS-232/485 |
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Fast response time & reduced downtime |
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Proven on-line reliability |
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Description |
The
ability to analytically quantify highly reactive volatile
organic compounds (VOC’s) in cooling towers, heat
exchangers, holding ponds, run-off water, and waste water is
greatly enhanced with the Sample Transfer Stripper (Patent #
5448922) & solid state sensor offered by Analytical Systems
Int’l./KECO R &D. The analyzer system utilizes many patented
and exclusive features only available from Analytical
Systems Int’l./KECO R & D.
The principle of operation requires a consistent free
flowing liquid sample into a Sample Transfer Stripper unit
which separates the liquids from the VOC’s. A hydrocarbon
free consistently flowing air carrier then sweeps the VOC’s
in a gaseous phase into the solid state sensor resulting in
a quantitative analysis in ppb w, ppm w, or up to saturation
levels. An optional liquid validation by Perm Tube TM
(Patent #5,156,334) is available. This unattended on-line
analysis is economically superior to inaccurate laboratory
analyzers where unstable grab samples result in VOC’s
deterioration that produce analytical errors. Downtime is
reduced to less than 10% of the El Paso, TOC or Sparger
methods and the economic pay out is increased because of
reduced product loss. In one case, 12,000 pounds of product
loss per day was quickly identified by this proven and
accurate on-line analytical method. Speciation is only
required once per month if total VOC’s are below 50 ppb w.
This eliminates the need for expensive in-plant G.C.
analysis of VOC’s. Analytical labs provide analytical
speciation for $50 per sample (see G.C. EPA Method SW
846-8260B). Alternatively, a gaseous sample can be drawn
from the Model 204L vent and speciation provided by the
plant lab G.C.
See Patent #5,156,334, 5,448,922 ,Patents Pending based on
letters that are available on request. |
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(.pdf)
Brochure