Abstract:
An aviation fuel is formulated with manganese-containing compounds. The composition may include relatively high amounts of manganese up to about 500 mg Mn/l. A manganese-containing additive may reduce the smoke created during the combustion of the aviation fuel. Additionally, the aviation fuel composition may include manganese to improve octane and include a phosphorus-containing scavenger to reduce manganese oxide engine deposits. Further, isooctane is added in order to, with the manganese-containing compound, improve the octane number of the fuel.
Abstract:
Additive composition mixtures and methods for synergistically maintaining low surface voltages of distillate fuels that include a synergistic conductivity improver additive composition for a distillate fuel. The additive composition includes: A) a mixture of (i) alkenyl polysulfone polymer, (ii) C16-C24 substituted maleic/polyamine copolymer, (iii) sulfonic acid, and (iv) aromatic solvent; and B) a mixture of (i) alkenyl polysulfone polymer, (v) polymeric reaction product of a C8-C18 aliphatic amine or diamine with epichlorohydrin; (iii) sulfonic acid, (iv) aromatic solvent; and optionally (vi) a quaternary ammonium compound. The additive composition contains from 30 to 60 wt. % component (A) and from 30 to 60 wt. % component (B) based on a total weight of the additive composition.
Abstract:
An aviation 100LL fuel additive formulation for lead scavenging which mitigates the detrimental effects of lead, cleans up the combustion chamber and also allows shipping and distribution by common carrier, such as UPS or FedEx. A fuel additive composition is described for aviation 100 octane Low Lead fuel, containing: (1) glycol ether 10 to 90% by volume; (2) tricresyl phosphate 5 to 10% by volume; and, (3) Polyetheramine 15 to 30% by volume. The described composition has a flash point above 141 degrees F. to enable safe shipping by common carrier. The described composition also contains polyetheramine to create a mixture which is shown to be effective in preventing plug fouling by lead and be effective in reducing combustion chamber deposits, thus providing a smooth running engine during ground operations.
Abstract:
A process for preparing a paraffin inhibitor formulation comprising (a) preparing a mixture comprising a waxy paraffin inhibitor component having a melting point of >0° C. and an emulsifier component, wherein the mixture is prepared at a first temperature range above the melting point of the waxy paraffin inhibitor; (b) adding water to the mixture to produce an o/w emulsion; and (c) cooling the o/w emulsion to a temperature in a second temperature range which is below the melting point of the waxy paraffin inhibitor. The mixture prepared in step (a) may further comprise water to produce a w/o emulsion, the water being present in a proportion by weight that is lower than the sum of the proportions by weight of the paraffin inhibitor and the emulsifier component. The process may further comprise (d) adding an at least partially water-miscible organic solvent in which the paraffin inhibitor is insoluble.
Abstract:
Disclosed is a method of preparing terminally functionalized telechelic polymers using a cationic living polymer product or a terminal tert-chloride chain end of a carbocationic quasiliving polymer product, which comprises quenching the polymer product with an N-substituted pyrrole to thereby functionalize the N-substituted pyrrole at the terminal reactive polymer chain end(s). Also disclosed are the terminal functionalized polyisobuyl N-substituted pyrrole compounds where the polyisobutyl group is substituted at the 2 and 3 position of the N-substituted pyrrole.