Abstract:
A droplet formation for fuels is disclosed. The droplet formation for fuels includes an amphiphile. The droplet formation for fuels further includes at least one of an extensional viscosity modifier and a viscosity modifier. The droplet formation for fuels further includes a hydrophilic portion. The droplet formation for fuels further includes a hydrophobic portion. The droplet, including the hydrophilic portion and the hydrophobic portion, includes characteristics selected for beneficial combustion properties. The selected characteristics include flash point, autoignition temperature, density, viscosity, miscibility, size, combustion temperature, organic properties, inorganic properties, zwitterionic properties, micelle properties, and particulate properties.
Abstract:
The feeding of coal slurries into a gasifier for the production of synthesis gas is improved by modifying the rheological properties of the coal particles so that conventional liquid transfer equipment can be used in the feed transfer process to the gasifier. The coal particle surface modification is accomplished by adsorbing asphaltenes derived from petroleum onto the surfaces of coal particles prior to and/or during contact with the slurry liquid. The coal particles with their surfaces thus modified exhibit lower particle-particle interaction in the liquid slurries to form a shear independent Newtonian fluid or a weakly shear thickening pseudoplastic fluid. The rheological properties of the slurries permit them to be transported reliably into a pressurized, entrained feed gasifier vessel using convention slurry pumps with a low potential expenditure of energy.
Abstract:
Fuels and fuel components comprising starch are provided, as well as methods for operating a combustor such as a boiler or an internal combustion engine by feeding a starch fuel to the combustor. The starch may be a common starch or a modified starch, such as a free-flowing, hydrophobic starch having a near-neutral dry product pH. The starch may be provided as a solid fuel such as a powdered fuel or as a fuel slurry. The fuels can include a starch as the primary combustible component and/or may include other fuel components such as gasoline, diesel, kerosene, jet fuel, and alcohols. Methods are also provided for making a free-flowing hydrophobic starch by preparing an aqueous mixture comprising a starch, a siliconate, and an acid, where the aqueous mixture has a near-neutral pH, and drying the starch solids to obtain a hydrophobic starch having a near-neutral dry product pH.
Abstract:
A process to produce a flowable fuel or fuel supplement from solid and/or liquid waste, such as municipal waste, industrial wastes or mixtures thereof and the system to carry out the process in which a feed of solid and liquid municipal waste, industrial wastes or mixtures thereof to a treatment zone under conditions of temperature to produce a solid char and vaporize liquids, recombining the char and the liquids, recovered from the wastes feed, to form a feed slurry containing solids, combining the feed slurry with additional combustible waste liquids which are added at a rate and amount to obtain a fuel slurry of specified properties, particularly specified viscosity and BTU content, subjecting the feed slurry and additional wastes to conditions of attrition in at least one attrition zone to produce a product slurry containing solids of fuel size, recovering the fuel slurry which be used as fuel in partial oxidation processes. The liquid waste may be collected as a product, particularly if they are high in organic compounds.
Abstract:
The invention is a process for producing a mixture of Fischer-Tropsch product that is solid at ambient conditions (between 32 DEG F and 95 DEG F), such as wax, and hydrocarbon liquid, such as naphtha, that can be pumped at ambient temperature (between 32 DEG F and 95 DEG F). The temperature of the mixture is controlled below the melting point of the Fischer-Tropsch product. The present invention provides for the transport of Fischer-Tropsch product from a remote location in a readily available medium, such as naphtha, via pipeline, tanker or railcar. At the completion of the transport, the hydrocarbon liquid and Fischer-Tropsch product are separated by conventional methods such as flashing, distillation, or filtration with minimal contamination from the hydrocarbon liquid.
Abstract:
A pumpable coal suspension to be used in the hydrogenation under high pressures maintains in a mixture condition a mass of dust coal in a boiling oil at about 200`C, so that the pumping limit of the suspension is not exceeded. The suspension is treated during 0.5-15 minutes at a temperature of 280-450`C, if necessary under high pressure. During this treatment, a new quantity of coal dust is mixed without however exceeding the pumping limit. If necessary, the suspension after mixing the new mass of coal dust may be subjected to a new thermal treatment. Thereby, suspensions with a higher coal content are produced, without loosing the pumpability or without the occurcence of baking as a result of the increase of the hydrogenation temperature.
Abstract:
A slurry suspension is provided, which comprises (a) carbonaceous material particles having an average diameter D50 comprised between 0.1 μm and 200 μm; (b) an organic compound comprising at least one amine group; and (c) an organic phase.
Abstract:
A slurry suspension is provided, which comprises (a) carbonaceous material particles having an average diameter D50 comprised between 0.1 μm and 200 μm; (b) an organic compound comprising at least one amine group; and (c) an organic phase.
Abstract:
Mixed alcohol formulas can be used as a fuel additive in gasoline, diesel, jet fuel, aviation gasoline, heating oil, bunker oil, coal, petroleum coke or as a neat fuel in and of itself. The mixed alcohols formulations can contain Cl-C5 alcohols, or in the alternative, C1-C8 alcohols or higher C1-Clo alcohols in order to boost energy content. The C1-C5 mixed alcohols contain more ethanol than methanol with declining amounts of propanol, butanol and pentanol. C1-C8 mixed alcohols contain the same, with declining amounts of hexanol, heptanol and octanol. C1-C10 mixed alcohols contain the same, with declining amounts of nananol and decanol. Synthetically produced mixed alcohol formulas feature higher octane and energy densities than either MTBE or fermented grain ethanol; more stable Reid Vapor Pressure blending characteristics; and increased soluablizing effects on condensate water. The primary benefits of mixed alcohols are increased combustion efficiencies, reduced emissions profiles and low production costs.