Patents by Inventor Dae K. Kim
Dae K. Kim 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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Publication number: 20030102267Abstract: Processes using heterogeneous adsorbents are disclosed for purification of aromatic monomers such as are typically produced by dehydrogenation of suitable benzenoid hydrocarbons, by passing a steam of ethylenically unsaturated aromatic monomer and impurities comprising at least one substituted aromatic compound having the same or similar carbon content in which a substituent moiety is acetylenically unsaturated, through a particulate bed of predominantly a support material having high surface area on which is dispersed at least one metallic element. Selective adsorption and/or complexing of the contained impurities with the adsorbent is continued until levels of a selected impurity in the effluent stream increase to a predetermined level. Thereafter the resulting bed of adsorbent is regenerated in the presence of a reducing gas containing dihydrogen to effect release of the contained impurities from the adsorbent.Type: ApplicationFiled: November 30, 2001Publication date: June 5, 2003Inventors: Dae K. Kim, Larry C. Satek, Michael J. Foral
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Patent number: 5856607Abstract: The present invention relates to a process for the production of ethylbenzene from dilute ethylene streams, especially from mixtures of ethane and ethylene where such mixture is the offgas from a refinery operation, such as a fluid catalytic cracking (FCC) operation and wherein the unreacted ethane from the alkylation reactor is dehydrogenated to produce ethylene which is recycled into the original dilute ethylene stream.Type: GrantFiled: May 2, 1997Date of Patent: January 5, 1999Assignee: Amoco CorporationInventor: Dae K. Kim
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Patent number: 5157501Abstract: A blooming measuring method for solid state image pick-up device and an apparatus thereof are disclosed, the method being constituted such that a spot beam having a certain area is irradiated to the light receiving zone of the solid state image pick-up device; the number of high level signal charges are counted from among the signal charges which are outputted from the solid state image pick-up device, and which are corresponding to one picture; and the counted value is compared with the area of the above mentioned spot beam. The apparatus of the present invention comprises: a light ray supplying means for supplying a spot beam; a driving signal generating means for driving the solid state image pick-up device; a signal detecting means for detecting only the signal charges; and a counting means for counting only the high level signals.Type: GrantFiled: November 16, 1989Date of Patent: October 20, 1992Assignee: SamSung Electronics Co., Ltd.Inventors: Young B. No, Dae K. Kim
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Patent number: 5053572Abstract: An improved multistage ethylbenzene dehydrogenation process comprising feeding steam and a major fraction of a hydrocarbon feed to a first reactor and feeding a remaining minor fraction of the hydrocarbon feed and a product of the first reactor to a second reactor.Type: GrantFiled: September 18, 1990Date of Patent: October 1, 1991Assignee: Amoco CorporationInventors: Dae K. Kim, George M. Longland, Jr.
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Patent number: 4902845Abstract: Catalyst activity life of an iron oxide-containing catalyst is extended by contacting such catalyst with a feedstream containing about 0.0001 to about 0.01 mole of oxygen per mole of feed in the substantial absence of an oxidation catalyst.Type: GrantFiled: November 21, 1988Date of Patent: February 20, 1990Assignee: Amoco CorporationInventors: Dae K. Kim, George A. McConaghy
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Patent number: 4418006Abstract: A hydrocarbon conversion catalyst system comprising a mixture of a first catalyst containing a noble metal component deposed on a refractory inorganic oxide and a second catalyst containing a non-noble metal component deposed on a support containing a refractory inorganic oxide and a crystalline aluminosilicate material, and a reforming method employing such catalyst system are disclosed.Type: GrantFiled: September 11, 1981Date of Patent: November 29, 1983Assignee: Standard Oil Company (Indiana)Inventors: Dae K. Kim, Ralph J. Bertolacini
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Patent number: 4330435Abstract: Process for disproportionation of petroleum hydrocarbons which comprises contacting in a reaction zone said petroleum hydrocarbon under suitable disproportionation conditions with a catalytic composition comprising a tungsten/molybdenum component, said tungsten/molybdenum component deposited upon an acidic cracking component comprising a mordenite large pore crystalline aluminosilicate material and a refractory inorganic oxide.Type: GrantFiled: January 8, 1979Date of Patent: May 18, 1982Assignee: Standard Oil Company (Indiana)Inventors: Ralph J. Bertolacini, Dae K. Kim, Gerald M. Lehmann
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Patent number: 4325808Abstract: A hydrocarbon conversion catalyst system comprising a mixture of a first catalyst containing a noble metal component deposed on a refractory inorganic oxide and a second catalyst containing a non-noble metal component deposed on a support containing a refractory inorganic oxide and a crystalline aluminosilicate material, and a reforming method employing such catalyst system are disclosed.Type: GrantFiled: July 21, 1980Date of Patent: April 20, 1982Assignee: Standard Oil Company (Indiana)Inventors: Dae K. Kim, Ralph J. Bertolacini
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Patent number: 4294685Abstract: A method for hydroconversion of coal solids in a solvent by contact with molecular hydrogen and catalyst solids in a reactor. The catalyst solids are catalytically active substances including promoted or unpromoted molybdenum on an alumina support material. The support is characterized by bimodal pore distribution with the average diameter of the smaller pores ranging from about 100-200 angstroms and preferably 120-140 angstroms, and average diameter of the larger pores being in excess of 1,000 angstroms.Type: GrantFiled: July 7, 1980Date of Patent: October 13, 1981Assignee: Electric Power Research Institute, Inc.Inventors: Dae K. Kim, Ralph J. Bertolacini, L. Charles Gutberlet, Ken K. Robinson
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Patent number: 4257922Abstract: A method for hydroconversion of coal solids in a solvent by contact with molecular hydrogen and catalyst solids in a reactor. The catalyst solids are catalytically active substances including promoted or unpromoted molybdenum on an alumina support material. The support is characterized by bimodal pore distribution with the average diameter of the smaller pores ranging from about 100-200 angstroms and preferably 120-140 angstroms, and average diameter of the larger pores being in excess of 1,000 angstroms.Type: GrantFiled: March 13, 1979Date of Patent: March 24, 1981Assignee: Electric Power Research Institute, Inc.Inventors: Dae K. Kim, Ralph J. Bertolacini, L. Charles Gutberlet, Ken K. Robinson
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Patent number: 4177219Abstract: Ethyl aromatics contained in the C.sub.9 aromatic fraction from fractionated reformate are selectively converted to xylenes via ethyl scission in the presence of a catalyst comprising a carrier of highly purified gamma alumina containing essentially no silica and of a surface area of at least 100 m.sup.2 /g and a metal selected from the group consisting of a Group VIII metal and a Group VIII metal promoted with zinc.Type: GrantFiled: April 24, 1978Date of Patent: December 4, 1979Assignee: Standard Oil Company (Indiana)Inventors: Allen I. Feinstein, Ralph J. Bertolacini, Dae K. Kim
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Patent number: 4167530Abstract: Process for disproportionation of petroleum hydrocarbons which comprises containing in a reaction zone said petroleum hydrocarbon under suitable disproportionation conditions with a catalytic composition comprising a tungsten/molybdenum component, said tungsten/molybdenum component deposited upon an acidic cracking component comprising a mordenite large pore crystalline aluminosilicate material and a refractory inorganic oxide.Type: GrantFiled: November 8, 1977Date of Patent: September 11, 1979Assignee: Standard Oil Company (Indiana)Inventors: Ralph J. Bertolacini, Dae K. Kim, Gerald M. Lehmann
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Patent number: 4136060Abstract: Disclosed is a catalyst essentially free of platinum, comprising from about 0.1 to about 2 weight percent rhenium and about 0.1 to about 2 weight percent gallium supported on a solid inorganic refractory oxide. A hydrocarbon conversion process, such as catalytic reforming, is also disclosed wherein the process contacts the above described catalyst with a hydrocarbon stream boiling in the range of about 70.degree. F. to about 500.degree. F. and hydrogen. A two-step process is also disclosed wherein a platinum catalyst is first contacted with a hydrocarbon stream to achieve a partial conversion followed by contacting the above described catalyst to achieve further conversion.Type: GrantFiled: February 16, 1978Date of Patent: January 23, 1979Assignee: Standard Oil Company of IndianaInventors: Ralph J. Bertolacini, Dae K. Kim
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Patent number: 4134823Abstract: Disclosed is a catalyst essentially free of platinum, comprising from about 0.1 to about 2 weight percent rhenium and about 0.1 to about 2 weight percent gallium supported on a solid inorganic refractory oxide. A hydrocarbon conversion process, such as catalytic reforming, is also disclosed wherein the process contacts the above described catalyst with a hydrocarbon stream boiling in the range of about 70.degree. F. to about 500.degree. F. and hydrogen. A two-step process is also disclosed wherein a platinum catalyst is first contacted with a hydrocarbon stream to achieve a partial conversion followed by contacting the above described catalyst to achieve further conversion.Type: GrantFiled: July 20, 1977Date of Patent: January 16, 1979Assignee: Standard Oil Company (Indiana)Inventors: Ralph J. Bertolacini, Dae K. Kim
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Patent number: 3943050Abstract: The catalyst comprises a Group-VIII-noble-metal hydrogenation component and a small amount of zirconium on a solid catalytic support comprising a porous refractory inorganic oxide. The zirconium may be present either in the elemental form or as compounds. The preferred hydrogenation component is platinum and the preferred porous refractory inorganic oxide is a catalytically active alumina.The reforming process comprises contacting a petroleum hydrocarbon stream in a reforming zone under reforming conditions and in the presence of hydrogen with the above-described catalyst. In one embodiment, the process comprises contacting a partially-reformed hydrocarbon stream in a reforming zone under reforming conditions and in the presence of hydrogen with the above catalyst. In another embodiment, the process comprises contacting a naphtha in a reforming zone under reforming conditions and in the presence of hydrogen with the above catalyst.Type: GrantFiled: July 26, 1973Date of Patent: March 9, 1976Inventors: Ralph J. Bertolacini, Dae K. Kim