Patents by Inventor Steven T. Coleman
Steven T. Coleman 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: 10364204Abstract: A process for manufacturing methyl t-butyl ether (MTBE) including (A) an optional first step including cracking raw material made from or containing ethane and/or propane, to form ethylene and recovering the residual uncracked raw material, (B) a second step including dimerizing ethylene to form n-butylene, (C) a third step including isomerizing the n-butylene to form isobutylene, (D) an optional fourth step including oxidizing methane to form methanol, (E) a fifth step including etherifying the isobutylene with methanol to form methyl t-butyl ether, and (F) a sixth step including collecting the methyl t-butyl ether is provided. The process can also be used to prepare gasoline alkylate, a higher molecular weight ethylene oligomer, a higher-molecular-weight-ethylene-oligomer-based methyl ether, an isomerized higher molecular weight ethylene oligomer, or an isomerized-higher-molecular-weight-ethylene-oligomer-based methyl ether.Type: GrantFiled: June 3, 2016Date of Patent: July 30, 2019Assignee: Lyondell Chemical Technology, L.P.Inventors: Michael G. Axelrod, Steven T. Coleman
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Patent number: 10125062Abstract: Propylene production processes are discussed herein. The propylene production processes may include contacting an olefin feed including butene with ethylene in the presence of a catalyst system including a metathesis catalyst under reaction conditions sufficient to form a product stream including propylene, wherein the metathesis catalyst includes molybdenum and the reaction conditions include a reaction temperature of less than 250° C.Type: GrantFiled: September 23, 2016Date of Patent: November 13, 2018Assignee: Lyondell Chemical Technology, L.P.Inventors: Vu Anh Dang, Lei Zhang, Shaotian Wang, Jude T. Ruszkay, Edrick Morales, Steven T. Coleman
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Patent number: 9688591Abstract: Ethylene separation processes are described herein. The ethylene separation processes generally include introducing a feed stream including ethylene and butene into a de-ethenizer; and separating the ethylene from the butene via fractional distillation within the de-ethenizer to form an overhead stream including separated ethylene and a bottoms stream including separated butene, wherein the de-ethenizer operates at a pressure of less than 350 psig.Type: GrantFiled: January 10, 2013Date of Patent: June 27, 2017Assignees: Equistar Chemicals, LP, Lyondell Chemical Technology, L.P.Inventors: Gary A. Sawyer, Robert S. Bridges, Steven T. Coleman, Allen David Hood, Jr.
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Publication number: 20170129831Abstract: Propylene production processes are discussed herein. The propylene production processes may include contacting an olefin feed including butene with ethylene in the presence of a catalyst system including a metathesis catalyst under reaction conditions sufficient to form a product stream including propylene, wherein the metathesis catalyst includes molybdenum and the reaction conditions include a reaction temperature of less than 250° C.Type: ApplicationFiled: September 23, 2016Publication date: May 11, 2017Applicant: Lyondell Chemical Technology, L.P.Inventors: Vu Anh Dang, Lei Zhang, Shaotian Wang, Jude T. Ruszkay, Edrick Morales, Steven T. Coleman
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Publication number: 20160368848Abstract: A process for manufacturing methyl t-butyl ether (MTBE) including (A) an optional first step including cracking raw material made from or containing ethane and/or propane, to form ethylene and recovering the residual uncracked raw material, (B) a second step including dimerizing ethylene to form n-butylene, (C) a third step including isomerizing the n-butylene to form isobutylene, (D) an optional fourth step including oxidizing methane to form methanol, (E) a fifth step including etherifying the isobutylene with methanol to form methyl t-butyl ether, and (F) a sixth step including collecting the methyl t-butyl ether is provided. The process can also be used to prepare gasoline alkylate, a higher molecular weight ethylene oligomer, a higher-molecular-weight-ethylene-oligomer-based methyl ether, an isomerized higher molecular weight ethylene oligomer, or an isomerized-higher-molecular-weight-ethylene-oligomer-based methyl ether.Type: ApplicationFiled: June 3, 2016Publication date: December 22, 2016Applicant: Lyondell Chemical Technology, L.P.Inventors: Michael G. Axelrod, Steven T. Coleman
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Patent number: 9464240Abstract: Embodiments of the present disclosure include methods for producing aromatic products, the methods including separating a crude oil and condensate feed into at least a light naphtha stream, a heavy naphtha stream, and a bottoms stream, reforming at least a portion of the heavy naphtha stream to produce a reformate stream, feeding a cracker feed stream, comprising the light naphtha stream, the bottoms stream, and a reformate extraction raffinate, to an olefins cracker to produce cracker products comprising pyrolysis gasoline, and introducing an extractor feed stream comprising the pyrolysis gasoline and the reformate to an aromatic extraction unit to produce an aromatic product and the reformate extraction raffinate.Type: GrantFiled: May 17, 2016Date of Patent: October 11, 2016Assignees: Lyondell Chemical Technology, L.P., Equistar Chemicals, LPInventors: Robert S. Bridges, Steven T. Coleman
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Publication number: 20160257894Abstract: Embodiments of the present disclosure include methods for producing aromatic products, the methods including separating a crude oil and condensate feed into at least a light naphtha stream, a heavy naphtha stream, and a bottoms stream, reforming at least a portion of the heavy naphtha stream to produce a reformate stream, feeding a cracker feed stream, comprising the light naphtha stream, the bottoms stream, and a reformate extraction raffinate, to an olefins cracker to produce cracker products comprising pyrolysis gasoline, and introducing an extractor feed stream comprising the pyrolysis gasoline and the reformate to an aromatic extraction unit to produce an aromatic product and the reformate extraction raffinate.Type: ApplicationFiled: May 17, 2016Publication date: September 8, 2016Applicants: Lyondell Chemical Technology, L.P., Equistar Chemicals, LPInventors: Robert S. Bridges, Steven T. Coleman
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Publication number: 20140221715Abstract: Embodiments of the present disclosure include methods for method of producing aromatic products, the methods including separating a crude oil and condensate feed into at least a light naphtha stream, a heavy naphtha stream, and a bottoms stream, reforming at least a portion of the heavy naphtha stream to produce a reformate stream, feeding a cracker feed stream, comprising the light naphtha stream, the bottoms stream, and a reformate extraction raffinate, to an olefins cracker to produce cracker products comprising pyrolysis gasoline, and introducing an extractor feed stream comprising the pyrolysis gasoline and the reformate to an aromatic extraction unit to produce an aromatic product and the reformate extraction raffinate.Type: ApplicationFiled: February 5, 2013Publication date: August 7, 2014Inventors: Robert S. Bridges, Steven T. Coleman
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Publication number: 20140194664Abstract: Ethylene separation processes are described herein. The ethylene separation processes generally include introducing a feed stream including ethylene and butene into a de-ethenizer; and separating the ethylene from the butene via fractional distillation within the de-ethenizer to form an overhead stream including separated ethylene and a bottoms stream including separated butene, wherein the de-ethenizer operates at a pressure of less than 350 psig.Type: ApplicationFiled: January 10, 2013Publication date: July 10, 2014Inventors: Gary A. Sawyer, Robert S. Bridges, Steven T. Coleman, Allen David Hood, JR.
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Publication number: 20140121429Abstract: Processes for forming propylene are described herein. The processes generally include reacting a metathesis feed stream including n-butene with ethylene in the presence of a metathesis catalyst via a metathesis reaction to form a metathesis product stream including propylene, ethylene, butene and C5+ olefins; separating the propylene from the ethylene, butene and C5+ olefins in the metathesis product stream; and recycling at least a portion of the C5+ olefins to the metathesis reaction.Type: ApplicationFiled: October 30, 2012Publication date: May 1, 2014Applicant: Lyondell Chemical Technology, L.P.Inventors: Steven T. Coleman, Gary A. Sawyer, Thomas S. Zak
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Patent number: 8658023Abstract: A hydrocarbon feed is passed to a first zone of a vaporization unit to separate a first vapor stream and a first liquid stream. The first liquid stream is passed to a second zone of the vaporization unit and contacted with a counter-current steam to produce a second vapor stream and a second liquid stream. The first vapor stream and the second vapor stream are cracked in the radiant section of the steam cracker to produce a cracked effluent. The second liquid stream is catalytically cracked to produce a cracked product. The cracked product is distilled to produce an overhead stream, a light cycle oil, and a heavy cycle oil. The light cycle oil is reacted with hydrogen in the presence of a catalyst to produce a hydrotreated light cycle oil. The hydrotreated light cycle oil and the overhead stream are fed to the vaporization unit.Type: GrantFiled: December 29, 2010Date of Patent: February 25, 2014Assignee: Equistar Chemicals, LPInventor: Steven T. Coleman
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Publication number: 20130172647Abstract: Processes and systems for forming propylene are described herein. The processes generally include reacting a metathesis feed stream including at least 95 wt. % 2-butene with ethylene in the presence of a metathesis catalyst to form a metathesis product stream including propylene, and recovering propylene from the process.Type: ApplicationFiled: February 22, 2013Publication date: July 4, 2013Applicants: Equistar Chemicals, LP, Lyondell Chemical Technology, L.P.Inventors: Steven T. Coleman, Gary A. Sawyer, Robert S. Bridges, Shaotian Wang, Lawrence M. Candela
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Patent number: 8395005Abstract: A process for producing propylene and 1-butene is disclosed. The process comprises dimerizing ethylene in the presence of a dimerization catalyst to produce a dimerization mixture comprising 1-butene and 2-butenes. The dimerization mixture is distilled to produce a 1-butene stream containing 1-butene and ethylene, a 2-butenes stream, and a heavy stream. The 2-butenes stream is reacted with ethylene in the presence of a metathesis catalyst to produce a metathesis mixture comprising propylene, ethylene, and 2-butenes. Propylene is separated from the metathesis mixture.Type: GrantFiled: October 13, 2010Date of Patent: March 12, 2013Assignees: Equistar Chemicals, LP, Lyondell Chemical Technology, L.P.Inventors: Steven T. Coleman, Gary A. Sawyer, Robert S. Bridges
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Patent number: 8273936Abstract: A process for cracking a heavy hydrocarbon feed is disclosed. The heavy hydrocarbon feed is passed to a first zone of a vaporization unit to separate a first vapor stream and a first liquid stream. The first liquid stream is passed to a second zone of the vaporization unit and contacted intimately with a countercurrent steam to produce a second vapor stream and a second liquid stream. The second vapor stream is contacted with a wash liquid in a rectification section to form a rectified stream. The first vapor stream and the rectified stream are cracked in the radiant section of the steam cracker to produce a cracked effluent.Type: GrantFiled: November 22, 2010Date of Patent: September 25, 2012Assignee: Equistar Chemicals, LPInventors: Robert S. Bridges, Steven T. Coleman
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Publication number: 20120168348Abstract: A process for cracking a heavy hydrocarbon feed comprising a vaporization step, a catalytic cracking step, a hydrotreating step, and a steam cracking step is disclosed. The heavy hydrocarbon feed is passed to a first zone of a vaporization unit to separate a first vapor stream and a first liquid stream. The first liquid stream is passed to a second zone of the vaporization unit and contacted with a counter-current steam to produce a second vapor stream and a second liquid stream. The first vapor stream and the second vapor stream are cracked in the radiant section of the steam cracker to produce a cracked effluent. The second liquid stream is catalytically cracked to produce a cracked product. The cracked product is distilled to produce a overhead stream, a light cycle oil, and a heavy cycle oil. The light cycle oil is reacted with hydrogen in the presence of a catalyst to produce a hydrotreated light cycle oil. The hydrotreated light cycle oil and the overhead stream are fed to the vaporization unit.Type: ApplicationFiled: December 29, 2010Publication date: July 5, 2012Inventor: Steven T. Coleman
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Publication number: 20120130139Abstract: A process for cracking a heavy hydrocarbon feed is disclosed. The heavy hydrocarbon feed is passed to a first zone of a vaporization unit to separate a first vapor stream and a first liquid stream. The first liquid stream is passed to a second zone of the vaporization unit and contacted intimately with a countercurrent steam to produce a second vapor stream and a second liquid stream. The second vapor stream is contacted with a wash liquid in a rectification section to form a rectified stream. The first vapor stream and the rectified stream are cracked in the radiant section of the steam cracker to produce a cracked effluent.Type: ApplicationFiled: November 22, 2010Publication date: May 24, 2012Inventors: Robert S. Bridges, Steven T. Coleman
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Publication number: 20120095275Abstract: A process for producing propylene and 1-butene is disclosed. The process comprises dimerizing ethylene in the presence of a dimerization catalyst to produce a dimerization mixture comprising 1-butene and 2-butenes. The dimerization mixture is distilled to produce a 1-butene stream containing 1-butene and ethylene, a 2-butenes stream, and a heavy stream. The 2-butenes stream is reacted with ethylene in the presence of a metathesis catalyst to produce a metathesis mixture comprising propylene, ethylene, and 2-butenes. Propylene is separated from the metathesis mixture.Type: ApplicationFiled: October 13, 2010Publication date: April 19, 2012Applicants: Lyondell Chemical Technology, L.P., Equistar Chemicals, LPInventors: Steven T. Coleman, Gary A. Sawyer, Robert S. Bridges
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Publication number: 20090203950Abstract: A method for metathesizing at least two olefins using a fluidized bed metathesis reactor and a finely subdivided solid catalyst.Type: ApplicationFiled: February 12, 2008Publication date: August 13, 2009Inventors: Richard B. Halsey, Steven T. Coleman
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Patent number: 7550638Abstract: An integrated method that comprises a hydrocarbon thermal cracking operation to form at least one olefin product, coupled with dimerization and metathesis operations, the dimerization operation forming additional feed material for the metathesis operation, and the metathesis operation forming additional amounts of olefin product.Type: GrantFiled: November 16, 2005Date of Patent: June 23, 2009Assignee: Equistar Chemicals, LPInventors: Robert S. Bridges, Steven T. Coleman
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Patent number: 7074976Abstract: A method for making propylene from alpha olefins, internal linear olefins and isoolefins wherein the alpha olefins are subjected to a combination of hydrogenation and double bond isomerization to form additional internal linear olefins, the internal linear olefins are disproportionated with ethylene to form a propylene product, while the isoolefins are subjected to skeletal isomerization to form yet additional internal linear olefins to be converted into yet additional propylene.Type: GrantFiled: August 19, 2003Date of Patent: July 11, 2006Assignee: Equistar Chemicals, LPInventors: Donald H. Powers, Robert S. Bridges, Steven T. Coleman