Fluid for carrying out pollution control in heat engines, and methods for preparing said fluids by producing a homogeneous solution
AssigneeIfp Energies Nouvelles
InventorsSerge GONZALEZ, Jacques VALLET, David PASQUIER
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Abstract
The present invention describes a fluid which is suitable for the decontamination of heat engines which can carry out both, at the same time, the catalytic reduction of oxides of nitrogen (NOx) contained in exhaust gases and assist in the regeneration of the particulate filter (PF). The invention also describes several embodiments of said fluid.
Claims14
A fluid for the decontamination of heat engines, in particular diesel engines, in order to be able to carry out both, at the same time, the selective catalytic reduction of oxides of nitrogen contained in exhaust gases as well as assisting in the regeneration of the particulate filter by catalytic combustion of particles of soot deposited in the particulate filter, the fluid being constituted by a homogeneous solution of at least one complexed, liganded or chelated metal ion, in an aqueous solution of at least one reducing compound or precursor of a reducing agent, the metal ion or ions being selected from the following list of metals:
- Fe, Cu, Ni, Co, Zn, Mn, Ti, V, Sr, Pt, Ce, Ca, Li, Na, Nb, and preferably from the following list:
- Fe, Cu, Ce, Sr.
Dependencies are inferred from the claim text.