Method for catalyzing fuel for powering internal combustion engines
AssigneePlatinum Plus, Inc.
InventorsW. Robert Epperly, Barry N. Sprague
Life of this patent
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Abstract
The invention presented is a method for catalyzing fuel for powering internal combustion engines. The method comprises admixing with fuel an additive composition comprising at least one fuel-soluble platinum group metal compound in an amount effective to supply from 0.01 to 1.0 parts per million of platinum group metal per part of fuel.
Claims12
A method for catalyzing fuel for powering internal combustion engines, comprising admixing with said fuel an additive composition comprising at least one fuel-soluble platinum group metal compound selected from the group consisting of:
- a) palladium acetylene complexes having the general formula ##STR4## wherein R.sup.1 is aryl or alkyl;
- and R.sup.2 is aryl;
- b) metal allyl complexes having the general formula
- M.sup.1 (C.sub.3 H.sub.5).sub.3
- wherein M.sup.1 is rhodium or iridium;
- c) platinum (IV) compositions having the general formula
- R.sub.3.sup.3 PtR.sup.4
- wherein R.sup.3 is aryl, alkyl or mixtures thereof;
- and R.sup.4 is hydroxyl, acetylacetonate, cyclopentadiene or pentamethyl cyclopentadiene;
- and
- d) a composition of the general formula
- L.sup.1 M.sup.2 R.sup.5
- wherein L.sup.1 is substituted or unsubstituted butadiene or cyclohexadiene;
- M.sup.2 is rhodium or iridium;
- and R.sup.5 is cyclopentadiene or pentamethyl cyclopentadiene, wherein said platinum group metal compound is provided in an amount effective to supply from 0.01 to 1.0 parts per million of platinum group metal per part of fuel.
A method for improving the operation of a diesel engine particulate trap comprising admixing with the diesel fuel used to power the diesel engine an additive which comprises a fuel-soluble, nonionic, organometallic platinum group metal coordination composition wherein said composition is selected form the group consisting of:
- a) palladium acetylene complexes having the general formula ##STR5## wherein R.sup.1 is aryl or alkyl;
- and R.sup.2 is aryl;
- b) metal allyl complexes having the general formula
- M.sup.1 (C.sub.3 H.sub.5).sub.3
- wherein M.sup.1 is rhodium or iridium;
- c) platinum (IV) compositions having the general formula
- R.sub.3.sup.3 PtR.sup.4
- wherein R.sup.3 is aryl, alkyl or mixtures thereof;
- and R.sup.4 is hydroxyl, acetylacetonate, cyclopentadiene or pentamethyl cyclopentadiene;
- and
- d) a composition of the general formula
- L.sup.1 M.sup.2 R.sup.5
- wherein L.sup.1 is substituted or unsubstituted butadiene or cyclohexadiene;
- M.sup.2 is rhodium or iridium;
- and R.sup.5 is cyclopetadiene or pentamnethyl cyclopentadiene, wherein said platinum group metal compound is provided in an amount effective to supply from 0.01 to 10.0 parts per million of platinum group metal per part of fuel and further wherein said platinum group metal compound is vaporized in the combustion chamber and travels to and replenishes the diesel trap.
A method for improving the operation of a catalytic converter comprising admixing with the fuel used to power an engine an additive which comprises a fuel-soluble, nonionic, organometallic platinum group metal coordination composition wherein said composition is selected form the group consisting of
- a) palladium acetylene complexes having the general formula ##STR6## wherein R.sup.1 is aryl or alkyl;
- and R.sup.2 is aryl;
- b) metal allyl complexes having the general formula
- M.sup.1 (C.sub.3 H.sub.5).sub.3
- wherein M.sup.1 is rhodium or iridium;
- c) platinum (IV) compositions having the general formula
- R.sub.3.sup.3 PtR.sup.4
- wherein R.sup.3 is aryl, alkyl or mixtures thereof;
- and R.sup.4 is hydroxyl, acetylacetonate, coclopentadiene or pentamethyl cyclopentadiene;
- and
- d) a composition of the general formula
- L.sup.1 M.sup.2 R.sup.5
- wherein L.sup.1 is substituted or unsubstituted butadiene or cyclohexadiene;
- M.sup.2 is rhodium or iridium;
- and R.sup.5 is cyclopentadiene or pentamethyl cyclopentadiene, wherein said platinum group metal compound is provided in an amount effective to supply from 0.01 to 1.0 parts per million of platinum group metal per part of fuel and further wherein said platinum group metal compound is vaporized in the combustion chamber and travels to and replenishes the catalytic converter.
Dependencies are inferred from the claim text.