Considerations for reconditioned diesel particulate filters

Considerations for reconditioned diesel particulate filters

“Reconditioned”, baked or cleaned diesel particulate filters (DPF) units offer short term financial benefit. In terms of  functionality, the overall cost to the customer is much higher. In reality these processes can deactivate the original catalyst and stress the DPF substrate to an even greater extent during normal active regen cycling.

Reconditioned units present an extensive history of soot accumulation and regeneration, which will expose both the substrate and washcoat to significant thermal extremes. This compromises the mechanical strength of the substrate and the catalytic  performance of the washcoat.

High temperature regen or “baking” events result in the sintering of the dispersed catalyst in the washcoat. Additionally, the base metal components of  the washcoat will undergo crystal growth and porosity collapse, resulting in decreased Nitrogen Deoxide make, which increases the frequency of active regen, adversely impacting fuel economy.

The repeated thermal cycling of the DPF subjects the substrate to repeated severely thermal expansion and contraction events, which potentially results in failure of the DPF.

Reconditioned or aqueous cleaning could potentially also deactivate the catalyst as the reverse flow injection of the cleaning solution can result in loss of the washcoat.

You May Also Like

The ever-improving truck parts availability, efficiency relationship

Right part, right place, right time moves toward 24/7 availability.

Every moment of every day there’s a truck in motion, moving goods and delivering solutions to every segment of the market. At least that’s the hope of fleet managers across the country because the alternative is a problem—and most likely a service problem. In today’s on-demand world, fleet managers don’t have time to wait for days or weeks for a truck to get fixed. Even a 12-hour delay can be devastating, as your truck sits at a closed service location waiting for the bay doors to open for the day.

Improve your aftertreatment diagnostics today

DPF Regens Performing regens, whether passive or forced, is necessary as they help to remove the soot buildup, prevent filter blockage, and increase the longevity of the DPF. By removing the accumulated soot, regens can help create a well-maintained DPF that lasts longer and avoids the hefty costs of replacing it. Passive Regens A passive

What your heavy-duty truck filters could be telling you

Understanding filtration can help you avoid larger maintenance down the road.

WIX-logo
Find Parts Fast with the Spicer ReadyShaft™ Dana EZ-ID™ Tool 

When it comes to commercial fleet vehicles, Dana knows there’s no time for downtime. For fleet managers and service techs, every second counts when a vehicle is down with a broken driveshaft. With over twelve thousand part numbers within the Spicer® product portfolio, we recognized the need to find a better way for our customers

How to measure and set truck air spring ride heights

Ensuring your truck’s air spring ride height is accurately set is crucial for maintaining optimal performance, longevity, and safety on the road.

Conti-air-spring-ride-height

Other Posts

Intangles introduces diesel particulate filter solution to optimize regeneration

The new solution offers real-time soot monitoring, regeneration quality insights and predictive performance analytics.

Intangles-diesel-particulate-filter-TMC-1400
Rypos DPFs pass CARB compliance test

The CARB certification shows Rypos’ active diesel particulate filters go beyond normal EPA emissions standards.

Rypos-active-diesel-particulate-filter-ADPF-CARB-certification
Diesel engine filtration’s critical role in efficiency, protection

From enhanced engine fluids to innovative filtration systems, technology is driving efficiency and reducing emissions in today’s diesel-powered fleets.

WIX-logo
Raising expectations: Three ways tractor lift axles boost efficiency, savings

There is value that goes beyond decreased tire wear when spec’ing lift axles Lift axles aren’t the first axle option that comes to mind for long-haul, over-the-road applications. But fleet managers would be wise to reconsider their go-to spec when looking to boost fuel efficiency and equipment operation savings. Sure, there’s the obvious benefit of