Platinum Plus is a bimetallic platinum/cerium kerosene-based fuel additive used at 4–8 ppm metal in fuel that:

• Improves fuel economy between 3%–8%

• Reduces PM emissions by 10–20% (30%–50% when combined with an oxidizer, 95% when combined with filter)

• Reduces HC and CO emissions by 10%–30% (50% when combined with an oxidizer)

• Lowers filter regeneration temperature to 300º–350° C.

CDT’s prototype on-board doser being developed with Fleetguard

Presently, there are three options for adding the fuel catalyst: the operator can add it manually to a fuel tank; a fueling station can use a dosing system to add the FBC as the fuel is pumped; or the fuel supplier can pre-mix the additive into the supply delivered to fueling stations.

Clean Diesel and Fleetguard are also cooperating on a fourth option: a new on-board delivery system developed by Fleetguard that incorporates reservoir of FBC into the engine’s fuel filter.

This system will release the FBC into the fuel as it is pumped through the fuel filter on its way to the engine. The dosing system will require no action by the vehicle operator other than having the filter replaced during scheduled maintenance.

Initially targeted at the retrofit market, Clean Diesel is also conducting programs using Platinum Plus FBC in advanced engines with exhaust gas recirculation (EGR) and soot filters to achieve the EPA 2007 emissions standards. The company anticipates that the FBC will allow lower platinum loadings on after-treatment devices, reduce fuel economy penalties of new low-emissions engines, and improve low-temperature regeneration of soot filters in difficult medium-duty urban drive conditions.

Resources:

• Emissions Reduction Performance of a Bimetallic Platinum/Cerium Fuel Borne Catalyst with Several Diesel Particulate Filters on Different Sulfur Fuels

• Emissions Reduction and Improved Fuel Economy Performance from a Bimetallic Platinum/Cerium Diesel Fuel Additive at Ultra-Low Dose Rates

• Presentation to CARB: Performance of FBC-Based Systems