Method of improving the operation of combustion particulate filters
AssigneeAfton Chemical Corporation
InventorsScott D. Schwab, Lawrence Joseph Cunningham, John D. Morris, Joel A. Evans
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Abstract
A method is disclosed that improves the operation of fuel combustion systems utilizing particulate filters. The method includes the combustion of a fuel emulsion in a fuel combustion system having a particulate filter. The fuel emulsion may comprise water and a fuel with the emulsion including a metal-containing compound, such as, for example, a manganese-containing compound.
Claims28
A method of improving the operation of a fuel combustion system having a particulate filter, the method comprising the steps of:
- providing a fuel combustion system comprising a particulate filter,
- providing a fuel emulsion comprising water and a fuel, the fuel emulsion comprising a manganese-containing compound,
- wherein the fuel emulsion is free of a platinum group metal selected from the group consisting of platinum, palladium, rhodium, ruthenium, osmium and iridium,
- combusting the fuel emulsion in the fuel combustion system whereby a particulate emission is produced,
- wherein combustion of the fuel emulsion results in improved operation of the particulate filter when compared with the operation of the particulate filter with combustion of a fuel emulsion without a manganese-containing compound.
A method of improving the operation of a combustion system having a particulate filter, the method comprising the steps of:
- providing a fuel combustion system comprising a particulate filter,
- providing a fuel emulsion comprising ethanol and a fuel, the fuel emulsion comprising a manganese-containing compound,
- wherein the fuel emulsion is free of a platinum group metal selected from the group consisting of platinum, palladium, rhodium, ruthenium, osmium and iridium,
- combusting the fuel emulsion in the fuel combustion system whereby a particulate emission is produced,
- wherein combustion of the fuel emulsion results in improved operation of the combustion system when compared with the operation of the combustion system combusting a fuel emulsion without a manganese-containing compound.
A method of reducing backpressure increase caused by the products of the combustion of a fuel in a fuel combustion system that includes a particulate filter, the method comprising the steps of:
- providing a fuel combustion system comprising a particulate filter,
- providing a fuel emulsion comprising water and a fuel, the fuel emulsion comprising a manganese-containing compound;
- wherein the fuel emulsion is free of a platinum group metal selected from the group consisting of platinum, palladium, rhodium, ruthenium, osmium and iridium,
- combusting the fuel emulsion in the fuel combustion system to produce particulate emissions;
- wherein the combustion of the fuel emulsion reduces the backpressure increase caused by accumulation of particulates on the particulate filter as compared with the backpressure increase caused by the combustion of a fuel emulsion without a manganese-containing compound.
Dependencies are inferred from the claim text.