Solid Feed Treatment With A Gas Other Than Air, Hydrogen Or Steam Patents (Class 208/951)
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Publication number: 20030167691Abstract: This invention discloses improvements on previous inventions for catalytic conversion of coal and steam to methane. The disclosed improvements permit conversion of petroleum residua or heavy crude petroleum to methane and carbon dioxide such that nearly all of the heating value of the converted hydrocarbons is recovered as heating value of the product methane. The liquid feed is distributed over a fluidized solid particulate catalyst containing alkali metal and carbon as petroleum coke at elevated temperature and pressure from the lower stage and transported to the upper stage of a two-stage reactor. Particulate solids containing carbon and alkali metal are circulated between the two stages. Superheated steam and recycled hydrogen and carbon monoxide are fed to the lower stage, fluidizing the particulate solids and gasifying some of the carbon. The gas phase from the lower stage passes through the upper stage, completing the reaction of the gas phase.Type: ApplicationFiled: March 5, 2002Publication date: September 11, 2003Inventor: Nicholas Charles Nahas
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Patent number: 5122259Abstract: A method and apparatus for producing oil, bitumen, precious metals, and hydrocarbon gases from mined oil-bearing rock material, such as tar sands and soil shale. The rock is ground, preconditioned in a heated and pressurized atmosphere devoid of oxygen, and subsequently centrifuged in the presence of an oil-replacement gas to produce oil, and also any precious metal particles that are present in the oil-bearing rock material. The produced oil and precious metals are subsequently separated from each other by centrifuging.Type: GrantFiled: June 25, 1990Date of Patent: June 16, 1992Inventor: Jay P. Nielson
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Patent number: 4778585Abstract: Increased yields of liquid hydrocarbon are obtained from a carbonaceous material (e.g., coal) by a two-stage process comprising pretreatment of the carbonaceous material with an appropriate gas in a first stage, followed by pyrolysis of the pretreated carbonaceous material, in a second stage.Type: GrantFiled: March 18, 1986Date of Patent: October 18, 1988Assignee: Research Foundation of the City Univ. of NYInventor: Robert A. Graff
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Patent number: 4687570Abstract: This invention relates to a process for converting solid carbonaceous material, such as coal, to liquid and gaseous hydrocarbons utilizing methane, generally at a residence time of about 20-120 minutes at a temperature of 250.degree.-750.degree. C., preferably 350.degree.-450.degree. C., pressurized up to 6000 psi, and preferably in the 1000-2500 psi range, preferably directly utilizing methane 50-100% by volume in a mix of methane and hydrogen. A hydrogen donor solvent or liquid vehicle such as tetralin, tetrahydroquinoline, piperidine, and pyrolidine may be used in a slurry mix where the solvent feed is 0-100% by weight of the coal or carbonaceous feed. Carbonaceous feed material can either be natural, such as coal, wood, oil shale, petroleum, tar sands, etc., or man-made residual oils, tars, and heavy hydrocarbon residues from other processing systems.Type: GrantFiled: June 19, 1985Date of Patent: August 18, 1987Assignee: The United States of America as represented by the United States Department of EnergyInventors: Muthu S. Sundaram, Meyer Steinberg
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Patent number: 4610776Abstract: A coal liquefaction process comprising reacting coal with a hydrocarbonaceous solvent at coal liquefaction conditions in the presence of an oil shale residue catalyst comprising organic and inorganic fractions. The oil shale residue catalyst is derived by heating an oil shale in the presence of an inert gas with respect to the oil shale at a temperature of 500.degree.-825.degree. F.Type: GrantFiled: July 15, 1985Date of Patent: September 9, 1986Assignee: UOP Inc.Inventors: Peter Urban, Lee Hilfman
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Patent number: 4606812Abstract: A process for hydrotreating carbonaceous materials is disclosed. The carbonaceous material is contacted with steam and with empirical hydrates of alkali metal hydrosulfides, monosulfides, or polysulfides. The process hydrocracks, hydrogenates, denitrogenates, demetallizes, and desulfurizes. In a preferred embodiment, hydrogen sulfide is co-fed to the reaction zone.Type: GrantFiled: November 7, 1983Date of Patent: August 19, 1986Assignee: Chemroll Enterprises, Inc.Inventor: Rollan Swanson
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Patent number: 4605487Abstract: Method for the production of liquid products, particularly, tar, from organic bulk materials.The invention relates to a method, whereby in an apparatus in one or a multiple of refining stages, organic bulk goods are refined to economically significant base materials, so that they are suitable, either directly or indirectly, for the production of gasifier or diesel fuel.The technical object is to utilize a fluidizing medium, with the help of which it is possible to produce, in a reaction chamber, an increased yield of liquid products, especially tar.According to the invention, the problem is solved by supplying a hydrocarbonaceous gas, especially a gas containing methane and hydrogen, as a fluidizing medium in the individual refining stages, whereby, under the particular refining conditions, there results a decrease of the portion of methane and hydrogen, and a comparative increase of the portion of the liquid product, especially of the portion of tar.Type: GrantFiled: September 26, 1984Date of Patent: August 12, 1986Assignee: VEB Schwermaschinenbau Karl Liebknecht MagdeburgInventors: Wolfgang Michel, Heinz Paul, Andreas Rummel, Gero Seher, Manfred Ossowski, Irmtrud Heberlein, Dieter Kostler, Frank Wilhelm
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Patent number: 4597775Abstract: An improved coking process for normally solid carbonaceous materials wherein the yield of liquid product from the coker is increased by adding ammonia or an ammonia precursor to the coker. The invention is particularly useful in a process wherein coal liquefaction bottoms are coked to produce both a liquid and a gaseous product. Broadly, ammonia or an ammonia precursor is added to the coker ranging from about 1 to about 60 weight percent based on normally solid carbonaceous material and is preferably added in an amount from about 2 to about 15 weight percent.Type: GrantFiled: April 20, 1984Date of Patent: July 1, 1986Assignee: Exxon Research and Engineering Co.Inventors: Rustom M. Billimoria, Frank F. Tao
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Patent number: 4589488Abstract: A method for the recovery of mineral resources, such as metallic minerals, petroleum, etc., from solid materials, such as subsurface earth formations, including; partially burning a hydrogen-containing fuel in the presence of an oxidizing agent under conditions to produce partial oxidation products, such as alcohols, hydrogen peroxide, aldehydes, ketones, etc., terminating the burning to prevent decomposition of the partial oxidation products and contacting the solid materials with the partial oxidation products and contacting the solid materials with the partial oxidation products and an alkaline or acidic material.Type: GrantFiled: June 21, 1983Date of Patent: May 20, 1986Assignee: Phillips Petroleum CompanyInventor: Robert M. Schirmer