Abstract:
A method is disclosed that improves the operation of fuel combustion systems utilizing particulate filters. The method includes the combustion of a fuel emulsion in a fuel combustion system having a particulate filter. The fuel emulsion may comprise water and a fuel with the emulsion including a metal-containing compound, such as, for example, a manganese-containing compound.
Abstract:
A water blended fuel composition comprising water, a normally liquid fuel and an emulsifying amount of at least one of a hydrocarbyl-substituted acylating agent and the reaction product of said hydrocarbyl-substituted acylating agent and an amine, an alcohol, a metal, reactive metal compound or a mixture of two or more thereof, wherein the hydrocarbyl substituent is a polymerized olefin having a polydispersity {overscore (M)}w/{overscore (M)}n greater than 5. Such polyolefin substituents can be prepared by polymerization of olefins in the presence of a calcined catalyst comprising a partially or fully neutralized ammonium salt of a heteropolyacid.
Abstract:
A system and process for improving the combustion of fuel oil in boilers employs: (1) dual homogenization of fuel oil and water; (2) recovery of heat from, and injection of, boiler waste water in the homogenization system; (3) mixing of urea and boiler waste water and injection into the boiler exhaust gases. The system of the invention includes: (a) a fuel service subsystem (11) with a boiler (36); (b) a dual subsystem (13) for homogeneously intermixing boiler waste water and fuel oil, the dual homogenization subsystem (13) including substantially similar primary and secondary homogenization subsystems, each of which includes at least one low pressure homogenization chamber (75, 18) preceding at least one high pressure homogenization subsystem (83, 27), with a compensating valve (74, 82, 17, 26) preceding each homogenization chamber for inducing cavitation; (c) a boiler blow down water and heat recovery subsystem (12); and (d) a urea and waste water mixing and injection subsystem (14); wherein the fuel service subsystem (11) leads to the dual homogenization subsystem (13), boiler blow down water from the boiler blow down water and heat recovery subsystem (12) empties into the dual homogenization subsystem (13), and urea and wastewater from the urea and waste water mixing and injection subsystem (14) flow into the boiler exhaust gas stream (66).
Abstract:
The present invention relates to an additive composition for a combustible fuel to produce improved combustion and reduced exhaust pollution of the combusted fuel, which additive composition comprises: a) one or more water-soluble alcohols having between 1 and 5 carbon atoms, in an anhydrous state or as a 0.5-36% aqueous solution, and one or more of the following: b) one or more straight- or branched- chain alcohols having between 6-18 carbon atoms; c) one or more ethoxylated alcohols having between 12 and 18 carbon atoms where the ethylene oxide add-on is less than 5 moles; d) a fatty acid of the structure R—(C═O)—OH having from 10 to 24 carbon atoms with e) a source of nitrogen in an anhydrous state or as an aqueous solution; wherein components a) to e), when combined with mixing with said combustible fuel, form a clear, stable microemulsion having a viscosity similar to the liquid fossil fuel. Combustion is improved and pollutant and particulate levels are reduced.
Abstract:
Emulsion compositions for starting a reformer of a fuel cell system comprises hyrdocarbon fuel, water and alkoxylated alkyl ester and alcohol surfactants.
Abstract:
The invention relates to an emulsified water fuel blend containing aqueous organic ammonium salts. The emulsified water fuel blend lowers nitrogen oxide emissions from engines.
Abstract:
The present invention relates to emulsion compositions for starting a reformer of a fuel cell system. In particular, the invention includes emulsion compositions comprising hydrocarbon fuel, water and alkoxylated alcohol surfactants for starting a reformer of a fuel cell system.
Abstract:
A process for fuelling a marine vessel having a diesel engine and/or a boiler, which comprises providing the marine vessel with a storage tank for high internal phase ratio (HIPR) emulsions comprising 10-40% by weight water and a fuel oil comprising at least one member selected from the group consisting of atmospheric residues, vacuum distillate residues, visbreaker residues and other heavy refinery streams in the substantial absence of hydrocarbon cutter stock. The absence of cutter stock avoids incompatibility problems and may allow for use of the emulsion without settling, filtering and centrifuging.
Abstract:
An aqueous hydrocarbon fuel is produced by a batch or continuous process. The process employs a reactant emulsion as a starting component with a hydrocarbon fuel, emulsifier and water. The resulting aqueous hydrocarbon fuel emulsion has improved stability.
Abstract:
A combustion modifier for an aqueous hydrocarbon fuel emulsion that reduces nitrogen oxides (NOx), hydrocarbons, carbon monoxide (CO) and particulate matter from the emissions of internal combustion engines. A class of combustion modifiers used in this invention contain nitrogen. The nitrogen-containing combustion modifiers are nitro compounds, hydroxylamines or salts thereof, nitrogen compounds having at least one strained ring group containing from 3 to 5 ring atoms, nitrites, nitramines and mixtures thereof. The non nitrogen-containing combustion modifier comprises compounds containing at least one strained ring compound.