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RESEARCH
AND DEVELOPMENT
Until the late 1980’s, high efficiency total NOx
(NO+NO2) wet scrubbing was not available commercially.The stability
and relative insolubility of the NOcomponent of NOx was the reason.
Duall systems engineers recognized this problem and designed a super
efficient NO oxidation system to provide the market place with a
total NOx wet scrubbing process. Currently, the competitive nature
of the market has made better operating efficiency for this type
system a requirement.
Again, Duall has responded.
Duall, through
research and development with the University of Michigan Chemical
Engineering Department, has developed a unique, high efficiency
wet oxidation/reduction approach to control your NOx emissions.
Refining and updating this process has led to
a new generation of total NOx scrubbers for the chemical process
industry.
The table below
is a sample of independent third party test results, demonstrating
the incredible oxidation efficiency of NO to NO2 in a ßeta
NOx 2000™ system, as well as simultaneous destruction of SO2.
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Test#1
Inlet |
Test#1
Outlet |
Test#2
Inlet
|
Test#2
Outlet |
Nitric
Oxide
ppbv |
943 |
<1.0 |
1010 |
<1.0 |
Nitric
Oxide
lb/hr |
0.19 |
<0.0002 |
0.21 |
<0.0002 |
Sulfur
Dioxide
ppbv |
509 |
2.8 |
1091 |
1 |
Sulfur
Dioxide
lb/hr |
0.22 |
0.001 |
0.48 |
0.0004 |
Scrubber
Efficiencies |
Nitric
Oxide
Test#1 |
Nitric
Oxide
Test#2 |
Sulfur
Dioxide
Test#1 |
Sulfur
Dioxide
Test#2 |
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99.90% |
99.90% |
99.40% |
99.90% |
Testing
occurred in August of 1995. Scrubber tested was operating at 45,000
ACFM at essentially ambient conditions. Test methods using certified
gas standards were: USEPA 7 for NO and USEPA 6 for SO2. A chemilluminescent
analyzer was the analytical device.
PERFORMANCE
GUARANTEE
All Duall ßeta NOx 2000™ systems are
warranted to perform as outlined in our Basis of Design. Please
contact Duall for a complete copy of our “Performance Guarantee
for Nitrogen Oxide (NOx) Scrubber Systems” (Form Number G-26).
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