Diesel Oxidation Catalyst

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Diesel Particulate Filters VOC Catalyst Exhaust Purifiers Custom Catalyst


Diesel engine exhaust gas contains many constituents that are considered harmful to humans.  Our high quality diesel catalytic converters (diesel exhaust gas purifiers) are designed and specially formulated to remove or reduce the harmful components while keeping pressure drop to a minimum.  Our standard units can provide over 90% reduction in carbon monoxide (CO) emissions, plus high reduction levels of unburned hydrocarbons (UHC), aldehydes (the odor causing component in diesel exhaust), as well as diesel particulate matter (DPM).  Higher reduction levels are possible depending upon engine operating conditions and with custom configured units.

Our pre-engineered converters are available in various sizes and configurations.  Converter housings are made of high grade 304 stainless steel.  Inlet and outlet connections are available with flanged connections, as well as straight tube, slotted tube and NPT connections.  The heart of the converter is our flow-through honeycomb substrate that is coated with a high surface area, poison resistant washcoat and a high activity, precious metal-based oxidation catalyst coating.  While our standard units are manufactured with a stainless steel honeycomb substrate, we also offer ceramic honeycomb as an alternative.

The correct converter (purifier) size will vary depending upon many factors including engine size, exhaust temperature, allowable pressure drop, required emissions reductions and engine duty cycle.  The table below notes some of our standard, single layer, units; however, custom designs are available upon request.  All data is illustrative and subject to change without notice.




High Performance, Long Life Design Features

  Solid 304 SS construction
  Low pressure drop with metal honeycomb catalyst
  High resistance to mechanical shock due to rough
    handling and engine vibration

  High resistance to thermal shock during startup,
    shutdown and engine cycling

  Highest catalytic activity for reductions in CO, UHC's,
    soot and diesel exhaust odors

  Suitable for a wide range of diesel fuels and dual fuel
    applications

Diesel Oxidation Catalyst Unit - Ready for installation on mobile equipment

Model DOC-W-14.5-1


MOBILE EQUIPMENT & SMALL FLOW UNITS 

CATALYST ENGINE DISPLACEMENT INLET/OUTLET
PIPE DIAMETER
OVERALL
LENGTH
HOUSING
DIAMETER
MODEL CUBIC INCHES LITERS INCHES INCHES INCHES
DOC-W-3-1 UP TO 150 UP TO 2.5 2 9 3
DOC-W-4-1 150 - 250 2.5 - 4.1 2, 2.5, 3 11 4
DOC-W-5-1 250 - 400 4.1 - 6.5 3, 3.5, 4 11 5
DOC-W-6-1 400 - 600 6.5 - 9.8 3, 3.5, 4 13 6
DOC-W-7-1 600 - 800 9.8 - 13.1 3, 3.5, 4, 5 14.5 7
DOC-W-8.5-1 800 - 1200 13.1 - 19.7 4, 5, 6 15 8.5
DOC-W-10-1 1200 - 1600 19.7 - 26.2 4,5, 6 18 10
DOC-W-11.5-1 1600 - 2000 26.2 - 32.8 5, 6 19 11.5
DOC-W-14.5-1 2000 - 3100 32.8 - 50.8 5, 6 24 14.5

NOTES:
-Fully welded design with straight pipe inlet & outlet connections
-Other inlet & outlet connections available
-Sizing based on nominal 4 cycle, naturally aspirated engine at 2,100 RPM
-All dimensions subject to change without notice
-Custom sizes available 



Medium Flow Unit Design Features

  Solid 304 SS construction
  Flanged inlet & outlet connections
  Removable catalyst layers for easy cleaning or replacement      
  Suitable for single or dual catalyst layers
  Inlet and outlet ports for instrument connection
  Removable lid design for easy catalyst access
Dual Layer Diesel Oxidation Catalyst

Model DOC-F-20-2 Dual Layer Unit

STATIONARY DIESELS & MEDIUM FLOW UNITS 

CATALYST EXHAUST FLOW INLET/OUTLET
FLANGE DIAMETER
OVERALL
LENGTH
HOUSING
DIAMETER
MODEL M3/MIN FT3/MIN INCHES INCHES INCHES
DOC-F-20-1 140 4,950 8, 10 47 20
DOC-F-24-1 200 7,060 10, 12 51 24
DOC-F-28-1 260 9,200 10, 12 56 28
DOC-F-30-1 300 10,600 10, 12 59 30
DOC-F-32-1 340 12,000 12, 14 59 32
DOC-F-34-1 415 14,650 12, 14 64 34

NOTES:
-Removable catalyst element design with flanged inlet & outlet connections
-Suitable for single or dual catalyst layers
-Other inlet & outlet connections available
-Sizing based on nominal 770 deg. F exhaust temperature
-All dimensions subject to change without notice
-Custom sizes available 

diesel catalyst diesel exhaust purifiers diesel soot filters diesel particulate filters diesel soot traps voc catalyst oxidation catalyst diesel catalytic converter catalytic convertor diesel soot trap flow-through catalyst three-way catalyst


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