Patents by Inventor Steven A. Blankenship
Steven A. Blankenship 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).
-
Patent number: 9670115Abstract: A two catalyst system is described having separate catalyst beds for the selective conversion of acetylene to ethylene which reduces the concentration of acetylene, dienes, O2, and NOx is disclosed. An ethylene containing gas stream, such as an off-gas stream from a refinery catalytic cracking unit used in the production of fuels and gas oils, is treated by first contacting the gas stream with a silver catalyst supported on a metal oxide and subsequently contacting the gas stream with a ruthenium catalyst supported on metal oxide. The two catalysts are contained within contiguous continuous reactors or reactor compartments.Type: GrantFiled: February 15, 2012Date of Patent: June 6, 2017Assignee: Clariant CorporationInventors: Mingyong Sun, Steven A. Blankenship, Michael A. Urbancic, Richard Paul Zoldak
-
Publication number: 20130211162Abstract: A two catalyst system is described having separate catalyst beds for the selective conversion of acetylene to ethylene which reduces the concentration of acetylene, dienes, O2, and NOx is disclosed. An ethylene containing gas stream, such as an off-gas stream from a refinery catalytic cracking unit used in the production of fuels and gas oils, is treated by first contacting the gas stream with a silver catalyst supported on a metal oxide and subsequently contacting the gas stream with a ruthenium catalyst supported on metal oxide. The two catalysts are contained within contiguous continuous reactors or reactor compartments.Type: ApplicationFiled: February 15, 2012Publication date: August 15, 2013Inventors: Mingyong Sun, Steven A. Blankenship, Michael A. Urbancic, Richard Paul Zoldak
-
Patent number: 8426660Abstract: A method for purification of ethylene-containing feedstreams from steam crackers or fluid catalytic crackers (FCC), wherein the feedstreams further comprises hydrogen, carbon monoxide, acetylenes, oxygen, nitric oxides, is disclosed. The method comprises contacting an ethylene-comprising gas stream with a Ru-based catalyst at reaction temperatures of at least 120°C. The process results in an ethylene-containing feedstream wherein the ethylene is essentially free of acetylenes, nitric oxides and oxygen. The purifying of the feedstream occurs with minimal loss of ethylene.Type: GrantFiled: August 21, 2008Date of Patent: April 23, 2013Assignee: Sud-Chemie Inc.Inventors: Mingyong Sun, Martin Byran, Steven A. Blankenship, Michael A. Urbancic
-
Patent number: 7745370Abstract: A catalyst for selective hydrogenation of acetylenes and diolefins, particularly in a raw gas feed stream for front end selective hydrogenation. The catalyst contains a low surface area carrier with a surface area from about 2-20 m2/g, wherein the pore volume of the pores of the carrier is greater than about 0.4 cc/g, at least 90 percent of the pore volume of the pores is contained within pores having a pore diameter greater than about 500 ? and about 1 to about 2 percent of the total pore volume is contained in pores with a pore diameter from about 500 to about 1,000 ?. The palladium comprises about 0.01 to about 0.1 weight % and a Group IB metal comprises about 0.005 to about 0.06 weight % of the catalyst.Type: GrantFiled: April 20, 2009Date of Patent: June 29, 2010Assignee: Sud-Chemie Inc.Inventors: Steven A. Blankenship, Jennifer A. Boyer, Gary R. Gildert
-
Publication number: 20100048972Abstract: A method for purification of ethylene-containing feedstreams from steam crackers or fluid catalytic crackers (FCC), wherein the feedstreams further comprises hydrogen, carbon monoxide, acetylenes, oxygen, nitric oxides, is disclosed. The method comprises contacting an ethylene-comprising gas stream with a Ru-based catalyst at reaction temperatures of at least 120°C. The process results in an ethylene-containing feedstream wherein the ethylene is essentially free of acetylenes, nitric oxides and oxygen. The purifying of the feedstream occurs with minimal loss of ethylene.Type: ApplicationFiled: August 21, 2008Publication date: February 25, 2010Inventors: Mingyong Sun, Martin Byran, Steven A. Blankenship, Michael A. Urbancic
-
Publication number: 20090203520Abstract: A catalyst for selective hydrogenation of acetylenes and diolefins, particularly in a raw gas feed stream for front end selective hydrogenation. The catalyst contains a low surface area carrier with a surface area from about 2-20 m2/g, wherein the pore volume of the pores of the carrier is greater than about 0.4 cc/g, at least 90 percent of the pore volume of the pores is contained within pores having a pore diameter greater than about 500 ? and about 1 to about 2 percent of the total pore volume is contained in pores with a pore diameter from about 500 to about 1,000 ?. The palladium comprises about 0.01 to about 0.1 weight % and a Group IB metal comprises about 0.005 to about 0.06 weight % of the catalyst.Type: ApplicationFiled: April 20, 2009Publication date: August 13, 2009Applicant: Sud-Chemie Inc.Inventors: Steven A. Blankenship, Jennifer A. Boyer, Gary R. Gildert
-
Patent number: 7521393Abstract: A catalyst for selective hydrogenation of acetylenes and diolefins, particularly in a raw gas feed stream for front end selective hydrogenation. The catalyst contains a low surface area carrier with a surface area from about 2-20 m2/g, wherein the pore volume of the pores of the carrier is greater than about 0.4 cc/g, wherein at least 90 percent of the pore volume of the pores is contained within pores having a pore diameter greater than about 500 ? and wherein from about 1 to about 2 percent of the total pore volume is contained in pores with a pore diameter from about 500 to about 1,000 ?, palladium, wherein the palladium comprises from about 0.01 to about 0.1 weight percent of the catalyst, and a Group IB metal, wherein the Group IB metal comprises from about 0.005 to about 0.06 weight percent of the catalyst.Type: GrantFiled: July 27, 2004Date of Patent: April 21, 2009Assignee: Süd-Chemie IncInventors: Steven A. Blankenship, Jennifer A. Boyer, Gary R. Gildert
-
Publication number: 20060178262Abstract: The present development relates to a catalyst composition for the selective hydrogenation of acetylene and to a method for preparing the catalyst. The catalyst comprises iridium, palladium and, optionally, at least one of the elements selected from the group consisting of silver, gold, copper, zinc and tin. In a preferred embodiment, the catalyst is prepared such that the palladium is located within the first 250 micrometers of the surface of the catalyst carrier. In contrast to the catalysts of the prior art, including for example, palladium/silver catalysts, the catalyst of the present invention exhibits high selectivity and an improved stability of the catalytic performance over an extended period of time.Type: ApplicationFiled: January 19, 2006Publication date: August 10, 2006Inventors: Andrzej Rokicki, Morlyasu Sugeta, David Linke, Steven Blankenship, Jennifer Boyer
-
Publication number: 20060025302Abstract: A catalyst for selective hydrogenation of acetylenes and diolefins, particularly in a raw gas feed stream for front end selective hydrogenation. The catalyst contains a low surface area carrier with a surface area from about 2-20 m2/g, wherein the pore volume of the pores of the carrier is greater than about 0.4 cc/g, wherein at least 90 percent of the pore volume of the pores is contained within pores having a pore diameter greater than about 500 ? and wherein from about 1 to about 2 percent of the total pore volume is contained in pores with a pore diameter from about 500 to about 1,000 ?, palladium, wherein the palladium comprises from about 0.01 to about 0.1 weight percent of the catalyst, and a Group IB metal, wherein the Group IB metal comprises from about 0.005 to about 0.06 weight percent of the catalyst.Type: ApplicationFiled: July 27, 2004Publication date: February 2, 2006Applicant: Sud-Chemie, Inc.Inventors: Steven Blankenship, Jennifer Boyer, Gary Gildert
-
Patent number: 6936568Abstract: A catalyst for selective hydrogenation of acetylene including a high surface area support material with a surface area at least about 150 m2/g and gold wherein the gold comprises from about 0.05 to about 5.0 weight percent of the catalyst and wherein the depth of penetration of the gold into the support material is such that at least about 90 percent of the gold is located within about 250 microns of the surface of the catalyst. A noble metal additive may also be included in the gold catalyst.Type: GrantFiled: June 12, 2002Date of Patent: August 30, 2005Assignee: Sud-Chemie Inc.Inventors: Steven A. Blankenship, Andrzej Rokicki, Jennifer A. Perkins
-
Publication number: 20050096217Abstract: A process for selective hydrogenation of acetylene during ethylene purification utilizing a palladium/thallium impregnated catalyst.Type: ApplicationFiled: October 29, 2003Publication date: May 5, 2005Applicant: SUD-CHEMIE, INC.Inventors: Andrezej Rokicki, Jennifer Boyer, Steven Blankenship
-
Publication number: 20030232719Abstract: A catalyst for selective hydrogenation of acetylene including a high surface area support material with a surface area at least about 150 m2/g and gold wherein the gold comprises from about 0.05 to about 5.0 weight percent of the catalyst and wherein the depth of penetration of the gold into the support material is such that at least about 90 percent of the gold is located within about 250 microns of the surface of the catalyst. A noble metal additive may also be included in the gold catalyst.Type: ApplicationFiled: June 12, 2002Publication date: December 18, 2003Inventors: Steven A. Blankenship, Andrzej Rokicki, Jennifer A. Perkins
-
Publication number: 20030134744Abstract: A process for preparation of a selective hydrogenation catalyst including preparing a catalyst material containing palladium and preferably additional additive materials, prereducing the palladium material and the additional additive materials, storing the prereduced catalyst under a non-oxidizing material and distributing the prereduced catalyst in a shipping container under the non-oxidizing material to a customer for use in a selective hydrogenation reaction.Type: ApplicationFiled: December 19, 2001Publication date: July 17, 2003Applicant: Sud-Chemie Inc.Inventors: Steven A. Blankenship, Jennifer A. Perkins, Andrzej Rokicki, James E. Fried
-
Patent number: 6509292Abstract: A process for selective hydrogenation of acetylene during ethylene purification without in-situ prereduction utilizing a palladium/gold impregnated catalyst wherein the ratio of the gold to the palladium is from about 6:1 to about 50:1.Type: GrantFiled: March 30, 2001Date of Patent: January 21, 2003Assignee: Sud-Chemie Inc.Inventors: Steven A. Blankenship, Richard W. Voight, Jennifer A. Perkins, James E. Fried, Jr.
-
Patent number: 6486369Abstract: A process for selective hydrogenation of a C2 and C3 olefinic feed stream containing acetylenic and diolefinic impurities whereby the acetylenes and diolefins impurities are selectively hydrogenated concurrently in a vapor phase process without first separating the C2 and C3 olefinic gases into separate feed stream.Type: GrantFiled: October 18, 2000Date of Patent: November 26, 2002Assignee: Sud-Chemie Inc.Inventors: Richard W. Voight, Steven A. Blankenship
-
Patent number: 6383981Abstract: An adsorbent product for the adsorption of trace elements of sulfur, arsenic, mercury, compounds which contain these elements or metal hydrides from a hydrocarbon gas stream, preferably an olefinic or paraffinic stream, wherein the adsorbent product is iron oxide and manganese oxide placed on a support material, preferably aluminum oxide. Also disclosed is a process for the use of this adsorbent product for the removal of trace elements of arsenic, mercury and sulfur or compounds containing those elements or metal hydrides from a hydrocarbon gas stream, preferably an olefinic or paraffinic gas stream.Type: GrantFiled: July 20, 1999Date of Patent: May 7, 2002Assignee: Süd-Chemie Inc.Inventors: Steven A. Blankenship, Richard W. Voight
-
Patent number: 5990372Abstract: An adsorbent product for the adsorption of trace elements of sulfur, arsenic, mercury, compounds which contain these elements or metal hydrides from a hydrocarbon gas stream, preferably an olefinic or paraffinic stream, wherein the adsorbent product is iron oxide and manganese oxide placed on a support material, preferably aluminum oxide. Also disclosed is a process for the use of this adsorbent product for the removal of trace elements of arsenic, mercury and sulfur or compounds containing those elements or metal hydrides from a hydrocarbon gas stream, preferably an olefinic or paraffinic gas stream.Type: GrantFiled: January 12, 1998Date of Patent: November 23, 1999Assignee: United Catalysts Inc.Inventors: Steven A. Blankenship, Richard W. Voight