Engine cleaning additives for diesel fuel
AssigneeVelino Ventures Inc.
InventorDavid H. Farrar
Life of this patent
Estimating the term…
Abstract
A composition and method for reducing particulate emissions from a diesel engine without measurably increasing NO.sub.x emissions from the diesel engine comprises: (i) burning in the diesel engine in excess air a fuel oil containing 0.01 ppm to 1 ppm of iron in a compound selected from the group consisting of ferrocene and its derivatives represented by the formula: ##STR1## wherein each of R and R', independent of the other is hydrogen, alkyl, cycloalkyl, aryl and heterocyclic.
Claims12
A method for reducing particulate emissions from a diesel engine without measurably increasing NO.sub.x emissions from said diesel engine, said method comprising:
- (i) burning a fuel oil in said diesel engine in the presence of excess air, the fuel oil containing a compound selected from the group consisting of ferrocene, and derivatives of ferrocene represented by ##STR5## wherein each R and R', independent of the other is selected from the group consisting of hydrogen, alkyl, cycloalkyl, aryl or heterocyclic functional groups, said compound present in an amount between 0.01 ppm and 1.0 ppm based on iron molecules present in said compound.
For use in an internal combustion diesel engine, a fuel composition capable of burning with reduced particulate emissions while maintaining the NO.sub.x emissions at an essentially stable level, the fuel composition comprising:
- (i) a fuel oil;
- and
- (ii) a compound selected from the group consisting of ferrocene and derivatives of ferrocene represented by the formula:
- ##STR6## wherein each of R and R', independent of the other, is selected from the group consisting of hydrogen, alkyl, cycloalkyl, aryl or heterocyclic functional groups, said compound present in an amount between 0.01 ppm and 1.0 ppm based on iron molecules present in said compound.
Dependencies are inferred from the claim text.