Class 44/311 - Sludge, pitch, tar, or tar distillate containing

Subclass of Class 44 - Fuel and related compositions
Definition: Compositions which contain tar, tar distillate, pitch, or
No. of patents: 30
Last issue date: 03/21/2000

Number	Title	Issue Date
6039771	Formulation and method of preparation of energy fortified diesel fuel An energy fortified diesel fuel is provided containing a hydrocarbon additive wherein greater than 50% vaporizes at or above about 650° F. and diesel fuel of which about 90% of the diesel fuel vaporizes at or below about 640° F. or about 95% of the dies...	03/21/2000
5509945	Mild desulfurization of sulfur-bearing materials A method for the removal of sulfur from sulfur-bearing materials such as coal and petroleum products using organophosphine and organophosphite compounds is provided....	04/23/1996
5439489	Method and apparatus for producing a fuel composition A process for producing a fuel composition from a waste stream containing a liquid, organic component, water and a mixture of inorganic and organic solids wherein the waste stream is separated into an oil fraction, a water fraction and a solids fraction, ...	08/08/1995
5389114	Method of treating and using waste products A method of treating and using waste products and to products produced thereby is described. The method comprises agitating the sewage sludge mixture and waste products with a co-agent to bind the mixture in a mixing chamber (1) having paddles (2). The mi...	02/14/1995
5269234	Method for processing solid, Hazardous waste material for use as a fuel A method for utilizing landfill-prohibited solid hazardous waste material as an energy source in a cement kiln is provided. The method comprises obtaining landfill-prohibited solid hazardous waste materials suitable for use in a cement kiln, combining the...	12/14/1993
5246470	Removal of sulfur from coal and pitch with dolomite The sulfur in bituminous coal can be converted to calcium sulfate instead of sulfur dioxide during combustion when it is mixed with petroleum pitch and calcium oxide, calcium carbonate or dolomite....	09/21/1993
5133781	Compatibilization of asphaltenes in bituminous liquids using bulk phosphoalkoxylation A method of compatibilization asphaltenes containing bituminous liquids which process comprises: a) reacting an asphaltene with phosphorous trichloride in the presence of a liquid to form a phosphochlorinated asphaltene containing from about 0.01 wt % to ...	07/28/1992
5125932	Dissolution of coal with petroleum pitch A meltable pumpable homogeneous carbonaceous mixture is produced by mixing powdered coal into molten petroleum pitch....	06/30/1992
4886519	Method for reducing sox emissions during the combustion of sulfur-containing combustible compositions This invention relates to the reduction of oxidized sulfur compound (SOX) emissions produced during combustion of sulfur (S)-containing combustible compounds. More particularly, this invention provides a method for reducing such emissions wherein the comb...	12/12/1989
4872885	Dispersant for aqueous slurry of carbonaceous solid and aqueous carbonaceous solid slurry composition incorporating said dispersant therein This invention discloses (1) a dispersant for an aqueous carbonaceous solid slurry, which comprises a water-soluble copolymer having an average molecular weight of 1,000 to 500,000 and obtained by polymerizing (A) 0.1 to 7 mol % of a polyalkylene glycol m...	10/10/1989
4775457	Method for treating crude oil sludges and the like Crude oil sludges and other relatively heavy hydrocarbon liquid sludges are mixed with diatomaceous earth or perlite to form a friable and flowable solids mixture which is conveyed to a combustion unit, such as rotary kiln, calciner or lift pipe type comb...	10/04/1988
4775388	Fuel composition comprised of heat-treated dewatered sewage sludge and a biocide-containing fuel oil An improved fuel composition is provided comprised of a colloidal dispersion of a heat-treated dewatered sewage sludge and a biocide-containing hydrocarbon fuel oil. A method is also provided for the incineration of sewage sludge comprised of providing a ...	10/04/1988
4758246	Fluidizing coal tar sludge A method and apparatus fluidizes solid deposits of coal tar sludge, such as coal tar decanter sludge or coal tar tank sludge to a relatively homogeneous mixture of solids dispersed in liquid. The coal tar decanter sludge received from the coke oven, inclu...	07/19/1988
4666457	Method for reducing emissions utilizing pre-atomized fuels Methods and composition are provided to facilitate the utilization of highly viscous hydrocarbons as clean burning fuels....	05/19/1987
4623359	Aqueous slurries of solid carbonaceous fuel Aqueous slurries of solid carbonaceous fuel that include a novel highly converted sulfonated surfactant derived from a suspension of low rank coal and coal derived creosote oil for reducing the viscosity and increasing the solids content of the aqueous sl...	11/18/1986
4618735	Process and apparatus for the conversion of sludges There is disclosed a new process for the conversion of the organic components of sludge, particularly sewage sludge, to produce useful, storable, energy-containing oil products, apparatus for carrying out the process and a control process for optimization...	10/21/1986
4613340	Residual oil sludge dispersant A non-ionic composition for dispersing sludge and causing rapid separation of water for easy removal, in residual oils, is formed from a blend of n-hexanol, diethylene glycol methyl ether and isooctyl phenyl polyethoxy ethanol. The dispersant, when used i...	09/23/1986
4610695	Fluid fuel mixture based on a pulverized solid fuel, petroleum residues and water, process for its preparation, and the use in boilers and industrial furnaces A fluid fuel mixture is formed of a suspension of a pulverized solid fuel and of at least one aqueous phase representing from 15 to 40 percent of the mixture before an optional incorporation of an additive. The mixture can comprise, as a supplement to par...	09/09/1986
4595396	Composition comprising 1,3,5-trioxane Novel compositions comprising methanol and 1,3,5-trioxane, uses as slurry agents and/or fuels, and methods of synthesis of said compositions from gases containing carbon dioxide and light hydrocarbons are disclosed....	06/17/1986
4579563	Method and apparatus for fluidizing coal tar sludge A method and apparatus fluidizes solid deposits of coal tar sludge, such as coal tar decanter sludge or coal tar tank sludge to a relatively homogeneous mixture of solids dispersed in liquid. The coal tar decanter sludge received from the coke oven, inclu...	04/01/1986
4565546	Condensation product and use thereof as dispersant for pitch in water slurry A novel condensation product obtained by reaction of an aldehyde and two kinds of sulfonic acid group-containing aromatic compounds. The product is useful as a dispersant for forming a pitch-in-water slurry....	01/21/1986
4560391	Alternative fuel comprised of sewage sludge and a liquid hydrocarbon fuel oil An improved fuel composition is provided comprising in minor proportion a non-dewatered sewage sludge and in major proportion an organic fuel comprised of a hydrocarbon fuel oil. A method is also provided for the incineration of sewage sludge comprised of...	12/24/1985
4547200	Slurry composition of solid fuel Slurry composition comprising a solid fuel powder, water and a compound having in its molecule a tricyclodecane or tricyclodecene skeleton and a sulfonic acid group attached to the skeleton....	10/15/1985
4539012	Pitch-containing composition A composition in the form of a dispersion or a slurry, which comprises an aqueous medium, a finely divided pitch, and a specific dispersant of an amount sufficient for maintaining the pitch in the dispersed state. The dispersant is selected from (A) a com...	09/03/1985
4537600	Method for the preparation of pitch-in-water slurry Molten pitch, such as obtained in petroleum refining, is comminuted as such in the presence of water to obtain coarse pitch particles solidified during the comminution by contact with the water. The coarse pitch particles are further pulverized in the pre...	08/27/1985
4378229	Method for treating sewage to produce a fuel A method is disclosed for treating sewage in which the combustible components of the sewage are separated from the sewage and utilized as a primary fuel. Scum is collected, preferably by skimming, from screened sewage. This scum comprises oils, greases, f...	03/29/1983
4344770	Method and apparatus for converting solid organic material to fuel oil and gas Method and means for converting organic materials, such as garbage, sewage sludge, wood and agricultural products, and the like, to fuels are disclosed which include pre-drying the organic feed material and feeding the same to a reactor for the pyrolysis ...	08/17/1982
4045092	Fuel composition and method of manufacture An economical fuel composition that can be readily transported and stored and that has good nonpollution properties characterized by a combustible, pseudo-thixotropic liquid-solid suspensoid including a critical proportion of coal particles having a criti...	08/30/1977
4008053	Process for treating organic wastes A process for treating the organic fraction of solid waste material with acid at an elevated temperature to form an embrittled material reducible to a powdered fuel having a caloric value and weight (on a dry basis) essentially equivalent to the waste mat...	02/15/1977
3961913	Process for treating organic wastes and product thereof A process for treating the organic fraction of solid waste material with acid at an elevated temperature to form an embrittled material reducible to a powdered fuel having a caloric value and weight (on a dry basis) essentially equivalent to the waste mat...	06/08/1976

PatentStorm

Bizarre Patents

PatentStorm News

Class 44/311 - Sludge, pitch, tar, or tar distillate containing