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.
Abstract:
The present invention relates to a process for reducing nitrogen oxides emissions from a diesel engine which comprises preparing an emulsion (80) of water in diesel fuel which contains a catalytically effective amount of catalyst composition (26) and a lubricity additive and supplying said emulsion to a diesel engine for combusting therein, whereby combustion of the emulsion leads to a reduction in the nitrogen oxides emissions from the diesel engine when compared with combustion of diesel fuel alone.
Abstract:
The present invention relates to a process for reducing nitrogen oxides emissions from a diesel engine which comprises preparing an emulsion (80) of water in diesel fuel which contains a catalytically effective amount of catalyst composition (26) and a lubricity additive and supplying said emulsion to a diesel engine for combusting therein, whereby combustion of the emulsion leads to a reduction in the nitrogen oxides emissions from the diesel engine when compared with combustion of diesel fuel alone.
Abstract:
The invention presented involves a method for regenerating, replacing or treating the catalyst in a hydroprocessing reactor, the method comprising admixing with the feedstock, recycle stream or hydrogen stream of the reactor an additive which comprises a nonionic, organometallic platinum group metal coordination composition which is a) resistant to breaddown under ambient temperatures; b) capable of breakdown at temperatures existing in the vicinity of the catalyst; and c) does not contain a disadvantageous amount of phosphorus, arsenic, sulfur, antimony or halides.
Abstract:
A method to improve the operation of a diesel trap through the use of a fuel additive comprising fuel-soluble compositions of platinum group metal in effective amounts to lower the emissions of unburned hydrocarbons and carbon monoxide from the trap. The catalyst is selective and reduces the oxidation of SO2 to SO3. The platinum group metal compositions are preferably added in amounts effective to provide concentrations of the metal in the fuel of less than 1 part per million (ppm). Lithium and/or sodium compositions can be used in amounts effective to reduce the trap regeneration temperature, e.g. concentrations to provide about 1 to 100 ppm lithium metal, and/or 1 to 30 ppm sodium metal.
Abstract:
The invention presented involves a method for reducing emissions from or increasing the utilizable energy of fuel for powering diesel, gasoline or gasohol internal combustion engines, the method comprising admixing with the fuel an additive which comprises a fuel-soluble, nonionic, organometallic platinum group metal coordination composition which is a) resistant to breakdown under ambient temperatures; b) does not contain a disadvantageous amount of phosphorus, arsenic, antimony or halides; and c) has a partition ratio sufficient to maintain preferential solubility in the fuel.