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7537700 |
Method for removing water contained in solid using liquid material
A method and a system for removing water from high water content solid such as high water content coal, which enables dewatering with small energy consumption. A liquefied material which is a gas...
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7419514 |
Process for producing a liquid fuel composition
A process to produce a flowable fuel or fuel supplement from solid and/or liquid waste, such as industrial waste. A system to carry out the process includes producing from the solid and/or liquid...
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7294156 |
Integrated process for bitumen recovery, separation and emulsification for steam generation
The invention relates to a process for splitting bitumen into two fractions and rendering a heavier bottom fraction as a useable emulsion fuel. The process is particularly effective in creating an...
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7128767 |
Method to upgrade low rank coal stocks
The ash content of raw coals, lignite, and other carbonaceous materials is reduced by leaching the high-ash material with an aqueous acidic waste product produced by a Fischer-Tropsch reaction. The...
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6860911 |
Synfuel composition and method of using same
The present invention re lates to a liquid synfuel additive composition which is used as an additive to coal fines to enhance the complete combustion of the coal after turning it into a synthetic...
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6752843 |
Asphalt emulsion producing and spraying process
The present invention is directed to a process for creating an asphalt emulsion for use in manufacturing synthetic fuel and a novel process for introducing an asphalt emulsion into a synthetic fuel...
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6740133 |
Chemical change agent for coal and method of using same
An acqueous synfuel composition to be used as an additive for coal and like combustible materials to cause chemical bonding with the coal or materials to transform it into a substance legally...
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6677388 |
Wax transport composition
Wax in water emulsions prepared from Fischer-Tropsch derived waxes, Fischer-Tropsch process water, and two alkyl ethoxylated phenol nonionic surfactants having different hydrophilic-lipophilic...
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6488722 |
Method and apparatus for spheroidizing particles
The present invention relates to high-density coal-water mixed fuel and a producing method thereof and aims to reduce an amount of dispersant to be used in the coal-water mixed fuel having the good...
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6444711 |
Aqueous, pumpable fluids from solid carbonaceous materials
The invention is a method for forming a solid carbonaceous material into a pumpable fluid by combining the solid with an aqueous treatment solution and then subjecting the mixture to shearing...
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6284806 |
Water emulsions of Fischer-Tropsch waxes
Hydrocarbon in water emulsions comprising Fischer-Tropsch process water, at least 20 to about 90 weight percent of a Fischer-Tropsch wax, a first nonionic surfactant having an HLB of at least 11...
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6211252 |
Method for forming aqueous, pumpable fluids from solid carbonaceous materials
The invention is a method for forming a solid carbonaceous material into a pumpable fluid by combining the solid with an aqueous treatment solution and then subjecting the mixture to shearing...
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6132478 |
Coal-water slurry producing process, system therefor, and slurry transfer mechanism
In a coal-water slurry producing system, low grade coal is wet-ground to not greater than 3 mm in particle size to produce a ground coal slurry. An upgrading treatment is applied to the ground coal...
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6117305 |
Method of producing water slurry of SDA asphaltene
Disclosed is a method of producing water slurry of SDA asphaltene by dispersing residue resulting from solvent deasphalting of petroleum vacuum residue produced in refineries, which has low...
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6113659 |
Fuel comprising a petroleum hydrocarbon in water colloidal dispersion
A fuel composition comprising a hydrocarbon in water colloidal dispersion including spherical hydrocarbon particles having a mean softening point exceeding about 95° C., and a water soluble...
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6083286 |
High-concentration coal/water mixture fuel and process for production thereof
The present invention relates to high-density coal-water mixed fuel and a producing method thereof and aims to reduce an amount of dispersant to be used in the coal-water mixed fuel having the good...
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6053954 |
Methods to enhance the characteristics of hydrothermally prepared slurry fuels
Methods for enhancing the flow behavior and stability of hydrothermally treated slurry fuels. A mechanical high-shear dispersion and homogenization device is used to shear the slurry fuel. Other...
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5900112 |
Method of reducing the viscosity of a black liquor using thiocyanate salt
A method of recycling sodium-based salts used for digesting wood in a digester during the manufacture of pulp and paper. The method comprises collecting a black liquor from the digester,...
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5690704 |
Additive for carbonaceous solid-water slurry, method for production thereof, and carbonaceous solid-water slurry compositions
An additive for a carbonaceous solid-water slurry which excels preeminently in the ability to disperse a finely powdered carbonaceous solid in water and, when used only in a small amount, permits...
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5685153 |
Efficient utilization of chlorine and/or moisture-containing fuels and wastes
A process for enhancing the fuel form, raising the energy content, and lowering the level of impurities of low rank coals and/or carbonaceous wastes, like Municipal Solid Waste (MSW), Refuse...
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5658357 |
Process for forming coal compact without a binder
A process for forming durable, mechanically strong compacts from feed mixtures comprising solid particles in contact with a liquid (e.g., carboniferous particles in contact with water) which does...
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5621156 |
Hypergolic fuel formulation: diethylethanolamine, triethylamine, and carbon
A hypergolic fuel formulation which is consistently hypergolic with inhibd red fuming nitric acid is comprised of diethylethanolamine from about 44-72 weight percent, triethylamine from about 11-18...
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5599356 |
Process for producing an aqueous high concentration coal slurry
An aqueous high concentration coal slurry having a high dispersion stability is produced by a process in which a coal material is wet pulverized at a low concentration in a dispersing agent-free...
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5513584 |
Process for the in-situ production of a sorbent-oxide aerosol used for removing effluents from a gaseous combustion stream
A process for the in-situ production of an effluent sorbent-oxide aerosol during the combustion of a hydrocarbon containing fuel whereby the effluents are removed from the resultant gaseous...
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5499587 |
Sulfur-sorbent promoter for use in a process for the in-situ production of a sorbent-oxide aerosol used for removing effluents from a gaseous combustion stream
A process for the in-situ production of an effluent sorbent-oxide aerosol with promoter during the combustion of a hydrocarbon containing fuel whereby the effluents are removed from the resultant...
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5482517 |
Coal-water mixture and process for producing same
A coal-water mixture is disclosed which can be produced without using synthetic additives. After an acid such as a mineral acid is added to coal powder which is obtained by grinding coal such as...
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5478365 |
Heavy hydrocarbon emulsions and stable petroleum coke slurries therewith
Disclosed is a combustible heavy hydrocarbon-in-water emulsion comprising: a. a nitrogen base neutralized phosphate-ester emulsifier in about 0.2 to about 1.0 wt. % amount; b. a water-soluble...
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5380342 |
Method for continuously co-firing pulverized coal and a coal-water slurry
A process is provided for burning a coal water slurry comprising providing clean coal fines of less than 100 mesh at about 50 weight % and water at about 50 weight % by co-firing the coal water...
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5328491 |
Method for dispersing and stabilizing a coal/water slurry using a polystyrenesulfonate
A dispersant comprises a polystyrenesulfonic acid having a weight-average molecular weight in the range of 2,000 to 100,000 or a salt thereof, wherein at least 70% of the terminals of the polymer...
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5290324 |
Coal-water mixture using upgraded low-rank coal and process for producing said mixture
The present invention provides a process for producing a coal-water mixture using a reaction mixture obtained by subjecting a low-rank coal of high water content to a hydrothermal treatment in the...
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5207891 |
Composition of matter for oligomeric aliphatic ether asphaltenes as asphaltene dispersants
A composition of matter useful as an asphaltene dispersant, comprising a mixture of: (a) poly[P,P'-(propylene oxide-400)phosphite) poly[di(propylene oxide--400)diol)]]-P,P diasphalenate; (b)...
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5202056 |
Composition of matter for oligomeric aliphatic ethers as asphaltene dispersants
A composition of matter useful as an asphaltene dispersant, comprising a mixture of: (a) poly[di(propylene oxide-400)phosphite]-g-poly(propylene oxide-400) alcohol; (b) poly[di(propylene...
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H001161 |
Aqueous coal slurry
An aqueous slurry containing coal and dextrin as a dispersant. The slurry, in addition to containing dextrin, may contain a conventional dispersant or, alternatively, a pH controlling reagent.
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5182343 |
Homopolymers of sulfonated isoprene and 1,3-butadiene and agents containing the same
A conjugated diene sulfonation product represented by the formula (I): ##STR1## wherein R 1 to R 6 , which may be the same or different, represent hydrogen atoms, alkyl groups having 1 to 8 carbon...
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5123931 |
Coal recovery process
A method for the beneficiation of coal by selective agglomeration and the beneficiated coal product thereof is disclosed wherein coal, comprising impurities, is comminuted to a particle size...
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5112363 |
Fluidizing and dispersing additives for coal-water dispersions
A fluidizing and dispersing additive for coal-water mixtures, constituted by an ethoxylated adduct of either natural humic acids, or of humic acids deriving from partial coal oxidation.
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5104417 |
Substitute coal from acetylene production by-products
A coal substitute product and process for producing it from by-products formed in the production of acetylene from natural gas is disclosed. The first by-product is an aqueous slurry of soot which...
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5100438 |
Ester-amides of polycarboxylic acids as rheological additives for coal-water slurries
Coal-water slurries containing a rheological additive are provided. Rheological additives employed for preparation of the coal-water slurries are ester-amide products obtained by reaction of a...
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5082469 |
Amides of polycarboxylic acids as rheological additives for coal-water slurries
Coal-water slurries containing a rheological additive are provided. Rheological additives employed for preparation of the coal-water slurries are amide products obtained by reaction of a...
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5045087 |
Stabilized suspensions of carbon or carbonaceous fuel particles in water
A method of preparing a stabilized or partially stabilized suspension of particles of carbon or of carbonaceous fuel materials in water characterized by comminuting coal (or other carbonaceous...
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5042990 |
Stabilizer and fluidifier additives for dispersions of coal in water
Storage-stable, pumpable, concentrated dispersions of coal in water contain a non-ionic additive constituted by a polymer containing polyethoxy chains grafted onto suitably functionalized...
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5036013 |
Aqueous-soluble polymeric coal substrate for depolymerization by a lignin peroxidase
A method is provided for converting coal to low molecular weight organic compounds comprising combining an aqueous solution of an aqueous-soluble polymeric coal substrate with a lignin peroxidase,...
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5028238 |
Dispersants and their use in aqueous coal suspensions
Dispersants for aqueous coal suspensions containing (a) lignin sulfonic acid and/or alkali metal, alkaline earth metal and/or ammonium salts thereof, (b) one or more alkyl ether phosphates...
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4983187 |
Method for preparing a high-concentration solids suspension in water
A method is described for preparing a high-concentration solids suspension, in particular coal or petroleum coke, which can be transported by pipe and be burnt with low emission of harmful...
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4957511 |
Coal-water dispersion agent
A dispersing agent for solid particles in water, which is a tall oil pitch partially esterified with a polyalkylene glycol mainly composed of ethylene oxide units of a molecular weight of above 600...
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4938983 |
Stable suspensions of solid particulates in aqueous media
Suspensions of solid particulates in aqueous media, useful, e.g., as thickeners in a wide variety of foodstuff and industrial applications, are sedimentations stabilized by incorporating therein a...
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4915708 |
Fluidifier additives for dispersions of coal in water
Storage-stable, pumpable concentrated dispersions of coal in water contain a non ionic additive constituted by the product of polyethoxylation of a styrene-allyl alcohol copolymer having a...
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4915706 |
Coal-water fuel production
A process and apparatus for producing coal-water fuel comprises crushing and primary grinding of the coal to form a liberated granular material, multiple stage froth flotation of the granulated...
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4904277 |
Rehydrating inhibitors for preparation of high-solids concentration low rank coal slurries
A method for preparing a high-solids concentration low rank coal slurry by dehydrating the coal, treating the dehydrated coal with a rehydrating inhibitor such as a (C 3 -C 12 ) alcohol and adding...
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4900330 |
Process for producing a high concentration coal-water slurry
A process for continuously and automatically producing a high concentration coal-water slurry having a uniform quality is provided, which process comprises always monitoring the viscosity,...
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