Stationary Diesel Generator / Catalytic Converter Emission Control Evaluation

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Stationary Diesel Generator / Catalytic Converter
Emission Control Evaluation

• Power Systems Division
• Naval Surface Warfare Center, Crane, IN.
• Cinergy Ventures, Cincinnati, OH
• Presenter Brian Fillingim, NSWC Crane

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Emission Limitation

• Federal Standards for NonRoad Emission
  Requirements
• Tier I Phase - 1996 to 2000
• Tier 2 / Tier 3 Phase - 2000 to 2008
• Limited Annual Hours to Remain With In Air
  Polution Standards for Total Emissions

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(No Transcript)
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Method of Reduction

• Selective Catalytic Reduction (SCR) Process
• Exhaust Catalyst with Anhydrous Ammonia (NH3)
  Injection Proof of Concept

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SCR Process

• SCR Reaction Chemistry
• 4NO 4NH3 O2 4N2 6H2O
• 6NO2 8NH3 O2 7N2 12H2O
• High Temp and Excess NH3
• 4NH3 5O2 4NO 6H2O
• 4NH3 3O2 2N2 6H2O

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Test Setup

• Caterpillar Model 3306 Diesel Generator Set - 250
  Kilowatt (kW)
•  Catalytic Converter in place of Stock Muffler
• Catalyst Design and Formulation by Catalytic
  Solutions Inc., Oxnard, CA
• Catalyst Housing and Integration by ArvinMeritor
  Inc, Columbus, IN
• Manual Setting for NH3 Injection Flow Rate into
  Engine Exhaust

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Caterpillar Model 3306
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Muffler vs Catalytic Converter
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Test Procedure

• Daily Six to Nine Hour Runs
•  Four to Six Samples per Test Run of
• O2, CO, NO, NO2, SO2
• Temperature (Pre Converter, Post Converter,
  Catalyst and Ambient)
• Third Party Verification of Emission Measurements
  by GE Energy Serivces Inc

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Results

• 556 Engine Hours
• 476 Hours with NH3 Injection
•  Final 350 Hours at 90 percent Load (225 kW) with
  NH3 Injection
•  Maximum NOx Reduction with 13 to 16 standard
  liters per minute (slpm) NH3 injection (0.8
  NH3/NOx) at 90 percent Load
• GE Energy Services Inc. measured Comparable Data
  and No Indications of Secondary Emissions

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Conclusions

• NH3 Injection and Catalyst Combination Reduced
  NOx by Approximately 90 percent
•  Further Evaluation in Colder Ambient
  Temperatures Indicated
•  Further Development and Evaluation of NH3
  Controllers is Indicated

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For More Details Contact

• Raj Malyala - Catalytic Solutions Inc., Oxnard,
  CA [phone] x1727 Rmalyala_at_catsolns.com
• Jim Lefeld - Cinergy, Cincinnati, OH
  513-287-2435 jlefeld_at_cinergy.com
• Brian Fillingim - NSWC Crane, IN 812-854-2361
  brian.fillingim_at_navy.mil