Abstract:
A fuel for compression-ignition engines is described, which contains mono oxymethylene dimethyl ether and has a cetane number of ≧51. This fuel for compression-ignition engines advantageously contains oxygenates of the n-polyoxaalkane type and/or di-tert-butyl peroxide. Up to about 20% by weight of the mono oxymethylene dimethyl ether can be replaced by dimethyl ether.
Abstract:
A liquid fuel composition containing: (a) a gasoline base fuel suitable for use in an internal combustion engine; and (b) one or more organic sunscreen compounds.
Abstract:
Compositions containing phenolic antioxidant solutions are provided. The invention further provides methods of making and using such compositions as well as compositions that contain both biodiesel and at least one antioxidant concentrate solutions and blended fuel compositions containing biodiesel blended with other fuels.
Abstract:
A compound having formula (Ph3C)mAr(R1)j(OR2)n, wherein Ph represents a phenyl group, Ar is an aromatic ring system having from six to twenty carbon atoms, R1 and R2 independently are C1-C18 alkyl or C4-C18 heteroalkyl, m is one or two, j is an integer from one to four and n is an integer from one to three.
Abstract:
A method for marking a petroleum hydrocarbon or a liquid biologically derived fuel. The method comprises adding to a petroleum hydrocarbon or a liquid biologically derived fuel at least one compound having formula (I), wherein R is C1-C12 alkyl, C3-C12 alkenyl or C7-C12 aralkyl; wherein each compound having formula (I) is present at a level from 0.01 ppm to 50 ppm.
Abstract:
The present invention describes a composition comprising at least one antioxidant and at least one ethylene vinyl acetate copolymer comprising units being derived from at least one alkyl (meth)acrylate having 1 to 30 carbon atoms in the alkyl residue. The composition is useful as cold flow improver and oxidation stabilizer in fossil fuel oil and or biodiesel fuel oil.
Abstract:
Marking a petroleum product includes adding a covert dye selected from the group consisting of azadipyrromethene dyes, dipyrromethene dyes, and any combination thereof to the petroleum product and distributing the dye in the petroleum product. A petroleum product selected for analysis may be spectroscopically analyzed for the presence of an azadipyrromethene dye, a dipyrromethene dye, or a combination thereof. A concentration of at least one azadipyrromethene or dipyrromethene dye present in the portion of the petroleum product may be determined to identify the petroleum product as counterfeit, adulterated, or authentic based on the determined concentration of the azadipyrromethene or dipyrromethene dye.
Abstract:
The invention provides fuel mixtures containing biodiesel oil, glycerol, glycerol soluble compounds, surfactants and additives. The fuel mixtures are uniform, remain suspended in solution, and are resistant to phase separation. Upon combustion, the mixtures generate reduced CO, CO2, SOx, NOx and particulate matter emissions compared to petroleum fuels and offer improved engine performance over petroleum and water mixtures.
Abstract:
A chemical composition of matter comprising a wax plasticizing agent (plasticizer) tributoxyethyl phosphate, a mixture of selected long chain fatty acids (preferably C10 to C22), and a mixture of selected low-surface tension surfactants, which when added in solution to crude oil or refined products has been shown to lower both the B.S. & W. (rag layer) and the coefficient of friction of crude oils and refined products. This chemical composition of matter is particularly useful as a wax liquefaction, dispersant, and solubilization agent for asphaltene and paraffins in crude oil and refined products. The reduction in the co-efficient of friction resulting from the addition of this product to crude oil will allow crude oil to pump through pipelines with a minimum amount of resistance due to friction (drag).
Abstract:
Embodiments of the invention provide a method of inhibiting precipitation of biodiesel fuel components. The method includes providing a biodiesel fuel composition; providing a copolymer comprising at least first and second polymer units, said first polymer units derived from a carboxylic acid anhydride and said second polymer units derived from an olefin; and blending said copolymer with the biodiesel fuel to form a treated fuel composition. Alternatively, instead of the copolymer, a dialkylene glycol additive can be provided. Embodiments of the invention provide a method of reducing the cold soak filter blocking tendency of a biodiesel fuel composition.