Donaldson Technology—Series 6100 Diesel Oxidation Catalyst (DOC)
This retrofit technology is included on EPA's Verified Technologies List for Clean Diesel.
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Technology specifications
Series 6100 DOC. Baseline A.
| Engine Model/Application |
Highway, heavy-heavy and medium-heavy duty, 4 cycle, non-EGR, model year 1991 - 2003; turbocharged or naturally aspirated |
|---|---|
| Retrofit Fuel, Max Sulfur | 15 parts per million (ppm) |
| Reduction in particulate matter (PM) | 26% |
| Reduction in nitrogen oxide (NOx) | n/a |
| Reduction in hydrocarbons (HC) | 49% |
| Reduction in carbon monoxide (CO) | 38% |
Series 6100 DOC. Baseline B.
| Engine Model/Application |
|
|---|---|
| Retrofit Fuel, Max Sulfur | 15 parts per million (ppm) |
| Reduction in particulate matter (PM) | 20% |
| Reduction in nitrogen oxide (NOx) | n/a |
| Reduction in hydrocarbons (HC) | 66% |
| Reduction in carbon monoxide (CO) | 41% |
Baseline A - Baseline assumes an unmodified engine running on regular 2D (<500 ppm sulfur) fuel.
Baseline B - Baseline assumes an unmodified engine running on ultra-low sulfur diesel fuel (ULSD) (<15 ppm sulfur) fuel.
Criteria to achieve emission reductions
The following operating criteria must be met in order for appropriately retrofitted engines to achieve the above emissions reductions:
- The engine must be operated with a fuel that contains a sulfur content of no more than 15 ppm.
- The engine exhaust temperature must be at least 150° C during the duty cycle.
- The engine should be well maintained and not consume lubricating oil at a rate greater than that specified by the engine manufacturer.
No discernible fuel economy penalty is expected when used in a compatible application.