Patents by Inventor Norman W. Green
Norman W. Green has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 4341598Abstract: Method and apparatus for pyrolyzing agglomerative coals which comprises introducing a fluidized bed of hot char particles into a pyrolysis chamber or reactor, and injecting upwardly into the chamber a high velocity jet of agglomerative coal particles in a carrier gas, the fluidized hot char particles surrounding the high velocity coal jet and heating the coal particles to yield gaseous products and char. The hot char particles in the fluidized state and disposed around the coal jet are entrained in the upwardly expanding coal jet and mixed with the coal particles, so that by the time the coal particles contact the pyrolysis chamber wall, such coal particles being heated by the char have passed through the tacky state and are no longer tacky and do not adhere to the chamber wall. The gaseous product and char formed during pyrolysis are rapidly removed from the pyrolysis chamber, and such char can be separated, e.g.Type: GrantFiled: June 30, 1980Date of Patent: July 27, 1982Assignee: Occidental Research CorporationInventor: Norman W. Green
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Patent number: 4334959Abstract: Method of mixing particulate materials comprising contacting a primary source and a secondary source thereof whereby resulting mixture ensues; preferably at least one of the two sources has enough motion to insure good mixing and the particulate materials may be heat treated if desired.Apparatus for such mixing comprising an inlet for a primary source, a reactor communicating therewith, a feeding means for supplying a secondary source to the reactor, and an inlet for the secondary source. Feeding means is preferably adapted to supply fluidized materials.Type: GrantFiled: April 18, 1980Date of Patent: June 15, 1982Assignee: Occidental Petroleum CorporationInventor: Norman W. Green
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Patent number: 4280876Abstract: Method and apparatus for pyrolyzing agglomerative coals which comprises introducing a fluidized bed of hot char particles into a pyrolysis chamber or reactor, and injecting upwardly into the chamber a high velocity jet of agglomerative coal particles in a carrier gas, the fluidized hot char particles surrounding the high velocity coal jet and heating the coal particles to yield gaseous products and char. The hot char particles in the fluidized state and disposed around the coal jet are entrained in the upwardly expanding coal jet and mixed with the coal particles, so that by the time the coal particles contact the pyrolysis chamber wall, such coal particles being heated by the char have passed through the tacky state and are no longer tacky and do not adhere to the chamber wall. The gaseous product and char formed during pyrolysis are rapidly removed from the pyrolysis chamber, and such char can be separated, e.g.Type: GrantFiled: August 14, 1979Date of Patent: July 28, 1981Assignee: Occidental Research CorporationInventor: Norman W. Green
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Patent number: 4243489Abstract: A solid carbonaceous material is pyrolyzed in a descending flow pyrolysis reactor in the presence of a particulate source of heat to yield a particulate carbon containing solid residue. The particulate source of heat is obtained by educting with a gaseous source of oxygen the particulate carbon containing solid residue from a fluidized bed into a first combustion zone coupled to a second combustion zone. A source of oxygen is introduced into the second combustion zone to oxidize carbon monoxide formed in the first combustion zone to heat the solid residue to the temperature of the particulate source of heat.Type: GrantFiled: November 13, 1978Date of Patent: January 6, 1981Assignee: Occidental Petroleum Corp.Inventor: Norman W. Green
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Patent number: 4163693Abstract: Method of mixing particulate materials comprising contacting a primary source and a secondary source thereof whereby resulting mixture ensues; preferably at least one of the two sources has enough motion to insure good mixing and the particulate materials may be heat treated if desired.Apparatus for such mixing comprising an inlet for a primary source, a reactor communicating therewith, a feeding means for supplying a secondary source to the reactor, and an inlet for the secondary source. Feeding means is preferably adapted to supply fluidized materials.Type: GrantFiled: November 20, 1975Date of Patent: August 7, 1979Assignee: Occidental Petroleum CorporationInventor: Norman W. Green
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Patent number: 4162943Abstract: Apparatus for conducting the flash pyrolysis of a primary material, particularly coal, and employing a secondary material, particularly hot char, as a heat source, comprising a rectangular slot for injection of a stream of particulate coal, which communicates with a substantially rectangular reactor or pyrolysis chamber. Wells are positioned on opposite sides of the pyrolysis chamber and in communication therewith, for introduction of fluidized secondary material, particularly hot char, into the pyrolysis chamber for admixture therein with and for heating the stream of primary material, such as coal. The pyrolysis chamber has a transition chamber, and a cylindrical separator chamber communicates with the transition chamber for receiving pyrolysis products. The separator chamber is provided with a tangential inlet, a solids outlet conduit positioned about 90.degree. around the circumference of the separator chamber from the tangential inlet, and a perforate gas receiver.Type: GrantFiled: November 4, 1977Date of Patent: July 31, 1979Assignee: Occidental Petroleum CorporationInventor: Norman W. Green
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Patent number: 4155715Abstract: This invention covers an improved hydrodesulfurization process which significantly reduces the organic sulfur content of char by first magnetically or electrostatically removing iron sulfides and precursors of iron sulfides from char and then hydrodesulfurizing the remaining char.Type: GrantFiled: September 6, 1977Date of Patent: May 22, 1979Assignee: Occidental Petroleum CorporationInventors: Allan Sass, Hans F. Bauer, Norman W. Green
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Patent number: 4145274Abstract: In a continuous process for recovery of values contained in a solid carbonaceous material, the carbonaceous material is comminuted and then subjected to flash pyrolysis in the presence of a particulate heat source fed over an overflow weir to form a pyrolysis product stream containing a carbon containing solid residue and volatilized hydrocarbons. After the carbon containing solid residue is separated from the pyrolysis product stream, values are obtained by condensing volatilized hydrocarbons. The particulate source of heat is formed by oxidizing carbon in the solid residue.Type: GrantFiled: May 5, 1977Date of Patent: March 20, 1979Assignee: Occidental Petroleum CorporationInventors: Norman W. Green, Kandaswamy Duraiswamy, Robert E. Lumpkin, Bruce L. Winter
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Patent number: 4135982Abstract: To prevent plugging in a pyrolysis operation where an agglomerative coal in a nondeleteriously reactive carrier gas is injected as a turbulent jet from an opening into an elongate pyrolysis reactor, the coal is comminuted to a size where the particles under operating conditions will detackify prior to contact with internal reactor surfaces while a secondary flow of fluid is introduced along the peripheral inner surface of the reactor to prevent backflow of the coal particles. The pyrolysis operation is depicted by two equations which enable preselection of conditions which insure prevention of reactor plugging.Type: GrantFiled: January 23, 1978Date of Patent: January 23, 1979Assignee: Occidental Petroleum CorporationInventor: Norman W. Green
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Patent number: 4102773Abstract: In a continuous process for recovery of values contained in a solid carbonaceous material, the carbonaceous material is comminuted and then subjected to flash pyrolysis in the presence of a particulate heat source over an overflow weir to form a pyrolysis product stream containing a carbon containing solid residue and volatilized hydrocarbons. After the carbon containing solid residue is separated from the pyrolysis product stream, values are obtained by condensing volatilized hydrocarbons. The particulate source of heat is formed by oxidizing carbon in the solid residue and separating out the fines.Type: GrantFiled: June 25, 1976Date of Patent: July 25, 1978Assignee: Occidental Petroleum CorporationInventors: Norman W. Green, Kandaswamy Duraiswamy, Robert E. Lumpkin
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Patent number: 4085030Abstract: In a continuous process for recovery of values contained in a solid carbonaceous material, the carbonaceous material is comminuted and then subjected to flash pyrolysis in the presence of a particulate heat source to form a pyrolysis product stream containing a carbon containing solid residue and volatilized hydrocarbons. After the carbon containing solid residue is separated from the pyrolysis product stream, values are obtained by condensing volatilized hydrocarbons. The particulate source of heat is formed by oxidizing carbon in the solid residue. Apparatus useful for practicing this process are disclosed.Type: GrantFiled: June 25, 1976Date of Patent: April 18, 1978Assignee: Occidental Petroleum CorporationInventors: Norman W. Green, Kandaswamy Duraiswamy, Robert E. Lumpkin, Everett W. Knell, Zia I. Mirza, Bruce L. Winter
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Patent number: 4071432Abstract: A carbonaceous material is pyrolyzed in the presence of a particulate source of heat obtained by the partial oxidation of a carbon containing solid residue of the carbonaceous material. The heat obtained from the oxidation of the carbon containing solid residue is maximized by preheating the carbon containing solid residue with a hot gas stream obtained by oxidizing the gaseous combustion products of the carbon containing solid residue.Type: GrantFiled: June 25, 1976Date of Patent: January 31, 1978Assignee: Occidental Petroleum CorporationInventors: Everett W. Knell, Norman W. Green