Patents by Inventor Karl Z. Steigleder
Karl Z. Steigleder 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: 10920156Abstract: The process for producing light olefins comprises the steps of contacting a feed stream comprising C4 to C11 hydrocarbons having at least 10 wt % paraffins and at least 15 wt % alkylaromatics with an acidic catalyst to form a cracked product comprising light olefins and aromatics. The catalyst comprises about 30 to about 80 wt-% of a crystalline zeolite and a low-acidic binder and may be regenerated.Type: GrantFiled: October 13, 2017Date of Patent: February 16, 2021Assignee: UOP LLCInventors: Avram M. Buchbinder, Stanley J. Frey, Karl Z. Steigleder
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Publication number: 20180179450Abstract: The process for producing light olefins comprises the steps of contacting a feed stream comprising C4 to C11 hydrocarbons having at least 10 wt % paraffins and at least 15 wt % alkylaromatics with an acidic catalyst to form a cracked product comprising light olefins and aromatics. The catalyst comprises about 30 to about 80 wt-% of a crystalline zeolite and a low-acidic binder and may be regenerated.Type: ApplicationFiled: October 13, 2017Publication date: June 28, 2018Inventors: Avram M. Buchbinder, Stanley J. Frey, Karl Z. Steigleder
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Publication number: 20140296602Abstract: An extruded C8 alkylaromatic isomerization catalyst is described. The catalyst has an average pore diameter in a range of about 110 ? to about 155 ? measured by BJH adsorption method and a pore volume less than about 0.62 cc/g measured by N2 porosimetry. A process for isomerizing a non-equilibrium C8 aromatic feed to provide an isomerized product is also described.Type: ApplicationFiled: May 14, 2014Publication date: October 2, 2014Applicant: UOP LLCInventors: Neelesh J. Rane, Paula Bogdan, Veronica G. Deak, Patrick Whitchurch, Karl Z. Steigleder, Marlyn A. Hamborg, Wharton Sinkler, Steven A. Bradley
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Publication number: 20140296601Abstract: An extruded C8 alkylaromatic isomerization catalyst is described. The catalyst has an average pore diameter in a range of about 110 ? to about 155 ? measured by BJH adsorption method and a pore volume less than about 0.62 cc/g measured by N2 porosimetry. A process for isomerizing a non-equilibrium C8 aromatic feed to provide an isomerized product is also described.Type: ApplicationFiled: March 29, 2013Publication date: October 2, 2014Applicant: UOP LLCInventors: Neelesh Rane, Paula Bogdan, Veronica G. Deak, Patrick Whitchurch, Karl Z. Steigleder, Marlyn A. Hamborg, Wharton Sinkler, Steven A. Bradley
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Publication number: 20100081565Abstract: An extruded catalyst comprising at least one molecular sieve material and an amorphous aluminum phosphate binder wherein the aluminum phosphate binder remains substantially amorphous after calcining.Type: ApplicationFiled: September 30, 2008Publication date: April 1, 2010Inventors: Michael H. Quick, Karl Z. Steigleder
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Patent number: 7262147Abstract: This invention relates to a process for reactivating a dehydrocyclodimerization catalyst. Dehydrocyclodimerization catalysts which contain an aluminum phosphate binder can be deactivated when they are exposed to hydrogen at temperatures above 500° C. The instant process restores substantially all of the catalyst's lost activity. The process involves treating the catalyst with a fluid comprising water and drying the catalyst. The process is employed particularly advantageously in combination with coke removal for reactivating catalysts that contain coke deposits and that have also been hydrogen deactivated. This invention also relates to a method of producing a dehydrocyclodimerization catalyst that is resistant to hydrogen deactivation.Type: GrantFiled: December 2, 2003Date of Patent: August 28, 2007Assignee: UOP LLCInventors: Karl Z. Steigleder, Veronica M. Godfrey, Kerry O. Boehner
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Patent number: 6756515Abstract: This invention relates to a dehydrogenation process using a layered catalyst composition. The catalyst composition comprises an inner core such as alpha-alumina, and an outer layer bonded to the inner core composed of an outer refractory inorganic oxide such as gamma-alumina. The outer layer has uniformly dispersed thereon a platinum group metal such as platinum and a promoter metal such as tin. The composition also contains a modifier metal such as lithium. The catalyst composition shows improved durability and selectivity for dehydrogenating hydrocarbons, especially at dehydrogenation conditions comprising a low water concentration.Type: GrantFiled: October 25, 2002Date of Patent: June 29, 2004Assignee: UOP LLCInventors: Dean E. Rende, Andrew W. Broerman, Andrea G. Bozzano, R. Joe Lawson, Karl Z. Steigleder, Masao Takayama
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Patent number: 6657096Abstract: This invention relates to a process for reactivating a dehydrocyclodimerization catalyst. Dehydrocyclodimerization catalysts which contain an aluminum phosphate binder can be deactivated when they are exposed to hydrogen at temperatures above 500° C. The instant process restores substantially all of the catalyst's lost activity. The process involves treating the catalyst with a fluid comprising water and drying the catalyst. The process is employed particularly advantageously in combination with coke removal for reactivating catalysts that contain coke deposits and that have also been hydrogen deactivated. This invention also relates to a method of producing a dehydrocyclodimerization catalyst that is resistant to hydrogen deactivation.Type: GrantFiled: March 29, 2002Date of Patent: December 2, 2003Assignee: UOP LLCInventors: Kerry O. Boehner, Karl Z. Steigleder, Veronica Marie Godfrey, Paul R. Cottrell, Earl S. Lemberger
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Patent number: 6586647Abstract: A process for selectively hydrogenating C4-acetylenes in a liquid hydrocarbon stream containing largely butadiene has been developed. Hydrogen and the hydrocarbon stream are contacted with a catalytic composite comprising an inorganic oxide support having dispersed thereon finely divided copper metal and an activator metal of nickel, cobalt, platinum, palladium, manganese, or a combination thereof where 1) the catalytic composite has an average diameter of up to about {fraction (1/32)} inch (800 microns) and/or 2) at least 50 and preferably 70 weight percent of the copper metal and the activator metal are dispersed on the outer 200 micron layer of the support.Type: GrantFiled: May 22, 2002Date of Patent: July 1, 2003Assignee: UOP LLCInventors: Hayim Abrevaya, Deng Yang Jan, Karl Z. Steigleder
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Publication number: 20030105373Abstract: This invention relates to a dehydrogenation process using a layered catalyst composition. The catalyst composition comprises an inner core such as alpha-alumina, and an outer layer bonded to the inner core composed of an outer refractory inorganic oxide such as gamma-alumina. The outer layer has uniformly dispersed thereon a platinum group metal such as platinum and a promoter metal such as tin. The composition also contains a modifier metal such as lithium. The catalyst composition shows improved durability and selectivity for dehydrogenating hydrocarbons, especially at dehydrogenation conditions comprising a low water concentration.Type: ApplicationFiled: October 25, 2002Publication date: June 5, 2003Inventors: Dean E. Rende, Andrew W. Broerman, Andrea G. Bozzano, R. Joe Lawson, Karl Z. Steigleder, Masao Takayama
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Patent number: 6486370Abstract: This invention relates to a dehydrogenation process using a layered catalyst composition. The catalyst composition comprises an inner core such as alpha-alumina, and an outer layer bonded to the inner core composed of an outer refractory inorganic oxide such as gamma-alumina. The outer layer has uniformly dispersed thereon a platinum group metal such as platinum and a promoter metal such as tin. The composition also contains a modifier metal such as lithium. The catalyst composition shows improved durability and selectivity for dehydrogenating hydrocarbons, especially at dehydrogenation conditions comprising a low water concentration.Type: GrantFiled: June 22, 2001Date of Patent: November 26, 2002Assignee: UOP LLCInventors: Dean E. Rende, Andrew W. Broerman, Andrea G. Bozzano, R. Joe Lawson, Karl Z. Steigleder, Masao Takayama
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Publication number: 20020151757Abstract: This invention relates to a process for reactivating a dehydrocyclodimerization catalyst. Dehydrocyclodimerization catalysts which contain an aluminum phosphate binder can be deactivated when they are exposed to hydrogen at temperatures above 500° C. The instant process restores substantially all of the catalyst's lost activity. The process involves treating the catalyst with a fluid comprising water and drying the catalyst. The process is employed particularly advantageously in combination with coke removal for reactivating catalysts that contain coke deposits and that have also been hydrogen deactivated. This invention also relates to a method of producing a dehydrocyclodimerization catalyst that is resistant to hydrogen deactivation.Type: ApplicationFiled: March 29, 2002Publication date: October 17, 2002Inventors: Kerry O. Boehner, Karl Z. Steigleder, Veronica Marie Godfrey, Paul R. Cottrell, Earl S. Lemberger
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Patent number: 6417419Abstract: A process for selectively hydrogenating C4-acetylenes in a liquid hydrocarbon stream containing largely butadiene has been developed. Hydrogen and the hydrocarbon stream are contacted with a catalytic composite comprising an inorganic oxide support having dispersed thereon finely divided copper metal and an activator metal of nickel, cobalt, platinum, palladium, manganese, or a combination thereof where 1) the catalytic composite has an average diameter of up to about {fraction (1/32)} inch (800 microns) and/or 2) at least 70 weight percent of the copper metal and the activator metal are dispersed on the outer 200 micron layer of the support.Type: GrantFiled: February 16, 2001Date of Patent: July 9, 2002Assignee: UOP LLCInventors: Hayim Abrevaya, Deng Yang Jan, Karl Z. Steigleder
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Patent number: 6395664Abstract: This invention relates to a process for reactivating a dehydrocyclodimerization catalyst. Dehydrocyclodimerization catalysts which contain an aluminum phosphate binder can be deactivated when they are exposed to hydrogen at temperatures above 500° C. The instant process restores substantially all of the catalyst's lost activity. The process involves treating the catalyst with a fluid comprising water and drying the catalyst. The process is employed particularly advantageously in combination with coke removal for reactivating catalysts that contain coke deposits and that have also been hydrogen deactivated. This invention also relates to a method of producing a dehydrocyclodimerization catalyst that is resistant to hydrogen deactivation.Type: GrantFiled: February 5, 1999Date of Patent: May 28, 2002Assignee: UOP LLCInventors: Kerry O. Boehner, Karl Z. Steigleder, Veronica Marie Godfrey, Paul R. Cottrell, Earl S. Lemberger
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Patent number: 5883039Abstract: A novel catalyst for alkylating an alkene with an alkane to give an alkylate product has been developed. The catalyst comprises a refractory inorganic oxide on which is dispersed a Group VIII metal, a metal cation and the reaction product of a metal halide and bound surface hydroxyl groups of the refractory inorganic oxide. The catalyst is characterized in that the Group VIII metal is concentrated in an outer layer of the catalyst particle.Type: GrantFiled: April 26, 1996Date of Patent: March 16, 1999Assignee: UOP LLCInventors: Thomas K. McBride, Jr., Maureen L. Bricker, Karl Z. Steigleder
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Patent number: 5744682Abstract: A novel catalyst for alkylating an alkene with an alkane to give an alkylate product has been developed. The catalyst comprises a refractory inorganic oxide on which is dispersed a Group VIII metal, a metal cation and the reaction product of a metal halide and bound surface hydroxyl groups of the refractory inorganic oxide. The catalyst is characterized in that the Group VIII metal is concentrated in an outer layer of the catalyst particle.Type: GrantFiled: May 30, 1995Date of Patent: April 28, 1998Assignee: UOPInventors: Thomas K. McBride, Jr., Maureen L. Bricker, Karl Z. Steigleder
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Patent number: 5482910Abstract: A process for preparing catalysts has been developed. The process involves the use of a chelating ligand such as ethylenediaminetetraacetic acid. The aqueous solution of the chelating ligand and a promoter metal salt is first prepared heated to a temperature of about 80.degree. C. to about its boiling point and then combined with an aqueous solution containing a Group VIII metal compound. Next this mixed solution is aged at a temperature of about 40.degree. C. to about 100.degree. C. and then used to impregnate a support, e.g., alumina spheres. The impregnated support is then dried, calcined and reduced with hydrogen. Prior to reduction the catalyst may optionally be treated with a chlorine or chloride stream.Type: GrantFiled: July 5, 1994Date of Patent: January 9, 1996Assignee: UOPInventors: Maureen L. Bricker, Thomas K. McBride, Jr., Karl Z. Steigleder
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Patent number: 5302732Abstract: Silica-aluminas having a sodium content less than about 0.1 weight percent show increased stability when used as a catalyst for the alkylation of aromatic compounds. Where such silica-aluminas are used as the catalyst in detergent alkylation their increased stability permits continuous alkylation to be performed at lower temperatures, as a result of which the detergent alkylate product shows an incrementally higher linearity. Fluorided silica-aluminas having a sodium content of under 0.05 weight percent are particularly advantageous.Type: GrantFiled: September 14, 1992Date of Patent: April 12, 1994Assignee: UOPInventors: Karl Z. Steigleder, Christine M. Conway, David M. Baldwin, Diane C. Dierking
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Patent number: 5190903Abstract: The invention comprises a hydrogen form Y-zeolite having a unit cell size between about 24.20 Angstroms and 24.40 Angstroms, preferably 24.30 to 24.36 Angstroms, characterized by a low ammonia temperature programmed desorption (TPD) acidity strength value and a relatively high ion exchange capacity. This zeolite may be produced by dehydroxylation as by a dry calcination of a steam modified low sodium zeolite such as LZ-20 zeolite.Type: GrantFiled: March 31, 1991Date of Patent: March 2, 1993Assignee: UOPInventor: Karl Z. Steigleder
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Patent number: 4894142Abstract: A highly selective hydrocracking process providing increased yields of middle distillates is disclosed. The process employs a catalyst comprising a Y-type hydrogen form zeolite having a unit cell size between about 24.20 Angstroms and 24.40 Angstroms, a metal hydrogenation component and refractory oxide support materials. The catalyst is characterized by low ammonia temperature programmed desorption (TPD) acidity strength values. This may be achieved by dehydroxylation caused by a dry calcination.Type: GrantFiled: February 28, 1989Date of Patent: January 16, 1990Assignee: UOPInventor: Karl Z. Steigleder