| abstract |
Diesel fuels that contain low concentrations of specific bimetallic or trimetal fuel-transported catalysts reduce particles and other emissions without the use of post-treatment devices, such as filters or catalysts, for example, diesel particle filters (DPF) or oxidation catalysts of diesel (DOC) in the case of diesel engines. By using a fuel containing a fuel soluble catalyst comprised of platinum and at least one additional metal containing cerium and / or iron, the production of contaminants of the type generated by incomplete combustion is reduced. Preferred levels of catalyst transported by fuel will be low, for example, from 0.05 to 0.5 ppm for platinum and from 3 to 8 ppm for cerium and / or iron, thereby providing effective reductions of out-of-engine emissions without any post-treatment device. . The performance of slightly catalyzed post-treatment devices will be improved with the subject invention. |