The disclosed technology relates to a concentrated multi-functional additive that can be continuously dosed in internal combustion engines.

Method for preventing or reducing low speed pre-ignition events in a spark-ignited internal combustion engine is provided. The method includes supplying to the engine a fuel composition comprising a primary additive having a structure given by

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or a salt thereof. R.sub.1 and R.sub.2 are independently H, C.sub.1-C.sub.20 hydrocarbyl group, carboxyl group, ester, amide, ketone, ether, or hydroxyl group. R.sub.3 and R.sub.4 are independently H, C.sub.1-C.sub.20 hydrocarbyl group, carboxyl group, ester, amide, ketone, ether, amino, or hydroxyl group or wherein R.sub.3 and R.sub.4 are part of a cyclic group. R.sub.5 is C.sub.1-C.sub.100 hydrocarbyl group, carboxyl group, ether, or hydroxyl group. Lastly, p is 0 to 2, n is 1 to 5, m is 0 to 2, and p+n+m is less than 6.

The present invention relates to the additive for solid fuel combustion processes (coal, biomass) that both improves fuel efficiency, reduces fuel consumption, and has the ability to prevent sludge formation in combustion chamber and reduce pollutant emission, ensuring stable and highly efficient furnace operation even when using bad-quality fuel. The additive includes the activator component with high polarity; the active component capable of generating active sites; the auxiliary component capable of promoting the generation of active centers; the stabilizing component able to regulate the physicochemical properties and helping to create a stable additive according to the ratio of components (% mass) as follows: Activator component: 20-30 Active component: 50-60 Auxiliary component: 5-9 Stabilizing component: 1-5, and Solvent: suitable In addition, the invention also relates to the production process for this additive.

The present invention discloses additive package comprising a mixture of (a) 6-10% by weight of fatty acid (b) 7-15% by weight of alkoxy ether and (c) 60-85% by weight of linear or branched chain monohydroxylated aliphatic saturated alcohol (C2-C8) for improving stability of mixtures of methanol-gasoline, ethanol-gasoline blends containing at least 5-15% by volume of short chain alkanol (methanol/ethanol). The additive composition is added to the alcohol-gasoline blends to improve low temperature stability, provides corrosion protection and to normalize vapor pressure of methanol/ethanol-gasoline blends.

A composition contains an additive for assisting with the regeneration of the PF in the form of an organic dispersion of iron particles and a detergent including a polyester quaternary ammonium salt.

The new fuel conceived for diesel engines is formulated using one part of standard diesel fuel and two groups of components with different characteristic rating. The first group is composed by reformulated chemicals, while the second group in made by a blend of vegetal oils properly balanced.

The fuel obtained with this formulation has a better thermodynamic performance and allows an appreciable reduction of carbon dioxide (CO.sub.2) and particulate matter (PT) output which are, respectively, approximately 50% and 60% lower

A method for the continuous production of an improved diesel fuel, having enhanced ignition characteristics, more particularly with a greater electric conductivity, enhanced cetane numbers and lubricity and with greater percentage of complete combustion, resulting in less soot production and NOx reduction at the same time in an internal combustion diesel engine, breaking the tradeoff in the emission of those two pollutants from an internal combustion diesel engine.

A lubricity improver composition for fuel oil composition contains a dicarboxylic acid monoester represented by the formula (I) as component A, and a C.sub.8-24 long-chain fatty acid, its polyol ester or a mixture thereof as component B. The total amount of component A and component B is 70-100 wt %, based on the total weight of the composition. The mass ratio of component A to component B is 9:1 to 1:9.

Treating pyrolysis oil to yield a liquid fuel or liquid fuel precursor includes combining the pyrolysis oil with one or more co-solvents to yield a mixture, and hydrotreating the mixture to yield the liquid fuel or liquid fuel precursor. The co-solvent can include one or more alcohols. The liquid fuel can be a transportation fuel, such as gasoline, diesel fuel, jet fuel, or marine fuel. The liquid fuel precursor can be a transportation fuel precursor, such as a gasoline precursor, a diesel fuel precursor, a jet fuel precursor, or a marine fuel precursor.

In some embodiments, a composition includes isooctane in an amount of about 81 vol % to about 87 vol %. The composition further includes a dialkyl ether compound in an amount of about 10 vol % to about 18 vol %, wherein the dialkyl ether compound is selected from the group consisting of ethyl-tert-butyl-ether, methyl-tert-butyl-ether, and combinations thereof. The composition further includes methanol in an amount of about 1.5 vol % or less. The total oxygen content present in the composition comprises about 3.2 wt % or less of the composition. The figures illustrate comparative testing including compositions of the disclosure.