Patents by Inventor Iacovos A. Vasalos
Iacovos A. Vasalos 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: 4511434Abstract: A fluid bed system for retorting solid hydrocarbon-containing material, such as oil shale, coal and tar sands, in which solid hydrocarbon-containing material and heat carrier material are fed into a mixing chamber, mixed and rapidly transported upwardly by a lift gas through a lift pipe into a solids-containing vessel to retort the hydrocarbon-containing material with minimal thermal cracking of the liberated hydrocarbons to increase the recovery of condensable hydrocarbons. The retorted material can be conveyed to a dilute phase lift pipe and combustor vessel where carbon residue in the retorted material is combusted leaving hot spent material that can be fed into the mixing chamber as solid heat carrier material.Type: GrantFiled: September 27, 1982Date of Patent: April 16, 1985Assignee: Standard Oil Company (Indiana)Inventor: Iacovos Vasalos
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Patent number: 4440632Abstract: Emissions of sulfur oxides from the regenerator of a fluidized catalytic cracking unit are reduced by selectively removing a portion of the sulfur from sulfur-containing coke deposits on deactivated cracking catalyst. This is accomplished by reaction of these deposits with limited amounts of molecular oxygen in a stripping zone at a temperature in the range from about 550.degree. to about 700.degree. C. Effluent gas from the striping zone is combined with the cracked hydrocarbon products.Type: GrantFiled: September 15, 1980Date of Patent: April 3, 1984Assignee: Standard Oil Company (Indiana)Inventors: Iacovos A. Vasalos, Eugene G. Wollaston
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Patent number: 4435281Abstract: Emissions of sulfur oxides from the regenerator of a catalytic cracking unit are reduced by selectively removing a portion of the sulfur from sulfur-containing coke deposits on deactivated cracking catalyst. This is accomplished by reaction of these deposits with limited amounts of molecular oxygen in a stripping zone at a temperature in the range from about 550.degree. to about 700.degree. C. Hot regenerated catalyst and/or hot effluent gas from the catalyst regeneration zone is passed to the stripping zone in an amount which is effective to maintain the temperature in said stripping zone within the range from about 550.degree. to about 700.degree. C.Type: GrantFiled: September 15, 1980Date of Patent: March 6, 1984Assignee: Standard Oil Company (Indiana)Inventor: Iacovos A. Vasalos
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Patent number: 4414101Abstract: A method and apparatus for regulating the intensity of the catalytic conversion of hydrocarbons in a conversion system employing a transfer line reactor are disclosed.Type: GrantFiled: August 17, 1981Date of Patent: November 8, 1983Assignee: Standard Oil Company (Indiana)Inventors: Jeffrey S. Smith, George P. Quinn, Iacovos A. Vasalos
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Patent number: 4404083Abstract: A fluid bed process and system for retorting hydrocarbon-containing material, such as oil shale, coal and tar sand, in which hydrocarbon-containing material and heat carrier material are fed into a mixing chamber, mixed and rapidly transported upwardly by a lift gas through a lift pipe into a solids-containing vessel to retort the hydrocarbon-containing material with minimal thermal cracking of the liberated hydrocarbons to increase the recovery of condensable hydrocarbons. The retorted material can be conveyed to a dilute phase lift pipe and combustor vessel where carbon residue in the retorted material is combusted leaving hot spent material that can be fed into the mixing chamber as heat carrier material.Type: GrantFiled: August 17, 1981Date of Patent: September 13, 1983Assignee: Standard Oil Company(Indiana)Inventor: Iacovos Vasalos
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Patent number: 4350615Abstract: Small amounts of a promoter comprising palladium and ruthenium enhance the combustion of carbon monoxide within the regeneration zone of a catalytic cracking unit without simultaneously causing the formation of excessive amounts of nitrogen oxides. The palladium-ruthenium promoter also enhances the capture of sulfur oxides by suitable absorbents within the regeneration zone of a catalytic cracking unit without causing the formation of excessive amounts of nitrogen oxides. The ratio by weight on an elemental metal basis of palladium to ruthenium is from about 0.1 to about 10.Type: GrantFiled: December 4, 1980Date of Patent: September 21, 1982Assignee: Standard Oil Company (Indiana)Inventors: Garbis H. Meguerian, John M. Lorntson, Iacovos A. Vasalos
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Patent number: 4300997Abstract: Small amounts of a promoter comprising palladium and ruthenium enhance the combustion of carbon monoxide within the regeneration zone of a catalytic cracking unit without simultaneously causing the formation of excessive amounts of nitrogen oxides. The palladium-ruthenium promoter also enhances the capture of sulfur oxides by suitable absorbents within the regeneration zone of a catalytic cracking unit without causing the formation of excessive amounts of nitrogen oxides. The ratio by weight on an elemental metal basis of palladium to ruthenium is from about 0.1 to about 10.Type: GrantFiled: October 12, 1979Date of Patent: November 17, 1981Assignee: Standard Oil Company (Indiana)Inventors: Garbis H. Meguerian, John M. Lorntson, Iacovos A. Vasalos
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Patent number: 4280898Abstract: A process for fluid catalytic cracking of residuum and other heavy oils comprising gas oil, petroleum residue, reduced and whole crudes and shale oil with high metals contents wherein contaminant metals comprising nickel, vanadium, copper and iron are deactivated, organic sulfur compounds deposited on the cracking catalyst are removed, wherein the said contaminant metals are deactivated by contact with a high temperature reducing atmosphere comprising carbon monoxide in a range of from about 4 to about 14 volume percent, the temperature being at least 900.degree. F. and preferably greater than 1200.degree. F., wherein the catalyst is modified with at least one inorganic sulfur oxide absorbent which reacts with sulfur oxides under regeneration conditions to form non-volatile inorganic sulfur compounds, the said sulfur oxide absorbent being present in sufficient amount to effect said reduction of said sulfur oxides.Type: GrantFiled: November 5, 1979Date of Patent: July 28, 1981Assignee: Standard Oil Company (Indiana)Inventors: David F. Tatterson, Iacovos A. Vasalos
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Patent number: 4267072Abstract: A cyclic, fluidized catalytic cracking process providing reduced emissions of noxious effluents in regeneration zone flue gases is operated with homogeneous or non-homogeneous, regenerable, fluidized, solid particles which are circulated throughout the catalytic cracking process cycle and which comprise (1) a molecular sieve-type cracking catalyst, comprising a cracking catalyst matrix containing crystalline aluminosilicate distributed throughout said matrix and (2) a metallic reactant which reacts with sulfur oxides in the regeneration zone.Type: GrantFiled: August 6, 1979Date of Patent: May 12, 1981Assignee: Standard Oil Company (Indiana)Inventor: Iacovos A. Vasalos
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Patent number: 4238317Abstract: A cyclic, fluidized catalytic cracking process providing reduced emissions of noxious effluents in regeneration zone flue gases is operated with regenerable, fluidized, solid particles which are circulated throughout the catalytic cracking process cycle and which comprise (1) a cracking catalyst, (2) a metallic reactant which reacts with a sulfur oxide to form a metal- and sulfur-containing compound in the solid particles, and (3) a metallic oxidation promoter.Type: GrantFiled: August 20, 1979Date of Patent: December 9, 1980Assignee: Standard Oil Company (Indiana)Inventors: Iacovos A. Vasalos, William D. Ford, Chuan-Kang R. Hsieh
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Patent number: 4221677Abstract: A cyclic, fluidized catalytic cracking process providing reduced emissions of noxious effluents in regeneration zone flue gases is operated with homogeneous or non-homogeneous, regenerable, fluidized, solid particles which are circulated throughout the catalytic cracking process cycle and which comprise (1) a molecular sieve-type cracking catalyst, comprising a cracking catalyst matrix containing crystalline aluminosilicate distributed throughout said matrix and (2) a metallic reactant which reacts with a sulfur oxide to form a metal- and sulfur-containing compound in the solid particles. The method involves regeneration of the cracking catalyst in the presence of a metallic oxidation promoter which can also be a component of the solid particles.Type: GrantFiled: March 19, 1979Date of Patent: September 9, 1980Assignee: Standard Oil Company (Indiana)Inventors: Iacovos A. Vasalos, William D. Ford, Chuan-Kang R. Hsieh
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Patent number: 4218344Abstract: A cyclic, fluidized catalytic cracking process providing reduced emissions of noxious effluents in regeneration zone flue gases is operated with homogeneous or non-homogeneous, regenerable, fluidized, solid particles which are circulated throughout the catalytic cracking process cycle and which comprise (1) a molecular sieve-type cracking catalyst, comprising a cracking catalyst matrix containing crystalline aluminosilicate distributed throughout said matrix and (2) a metallic reactant which reacts with sulfur oxides in the regeneration zone.Type: GrantFiled: January 11, 1979Date of Patent: August 19, 1980Assignee: Standard Oil Company (Indiana)Inventor: Iacovos A. Vasalos
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Patent number: 4206039Abstract: A cyclic, fluidized catalytic cracking process providing reduced emissions of noxious effluents in regeneration zone flue gases is operated with homogeneous or non-homogeneous, regenerable, fluidized, solid particles which are circulated throughout the catalytic cracking process cycle and which comprise (1) a molecular sieve-type cracking catalyst, comprising a cracking catalyst matrix containing crystalline aluminosilicate distributed throughout said matrix and (2) a metallic reactant which reacts with sulfur oxides in the regeneration zone.Type: GrantFiled: March 15, 1979Date of Patent: June 3, 1980Assignee: Standard Oil Company (Indiana)Inventor: Iacovos A. Vasalos
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Patent number: 4153534Abstract: A cyclic, fluidized catalytic cracking process providing reduced emissions of noxious effluents in regeneration zone flue gases is operated with homogeneous or non-homogeneous, regenerable, fluidized, solid particles which are circulated throughout the catalytic cracking process cycle and which comprise (1) a molecular sieve-type cracking catalyst, comprising a cracking catalyst matrix containing crystalline aluminosilicate distributed throughout said matrix and (2) a metallic reactant which reacts with sulfur oxides in the regeneration zone.Type: GrantFiled: December 8, 1976Date of Patent: May 8, 1979Assignee: Standard Oil Company (Indiana)Inventor: Iacovos A. Vasalos
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Patent number: 4153535Abstract: A cyclic, fluidized catalytic cracking process providing reduced emissions of noxious effluents in regeneration zone flue gases is operated with homogeneous or non-homogeneous, regenerable, fluidized, solid particles which are circulated throughout the catalytic cracking process cycle and which comprise (1) a molecular sieve-type cracking catalyst, comprising a cracking catalyst matrix containing crystalline aluminosilicate distributed throughout said matrix and (2) a metallic reactant which reacts with a sulfur oxide to form a metal- and sulfur-containing compound in the solid particles. The method involves regeneration of the cracking catalyst in the presence of a metallic oxidation promoter which can also be a component of the solid particles.Type: GrantFiled: December 8, 1976Date of Patent: May 8, 1979Assignee: Standard Oil Company (Indiana)Inventors: Iacovos A. Vasalos, William D. Ford, Chuan-Kang R. Hsieh