Patents by Inventor Gary D. Mohr
Gary D. Mohr 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: 20160115095Abstract: In a process for dehydrogenating cyclohexylbenzene and/or alkyl-substituted cyclohexylbenzene compounds, a dehydrogenation catalyst comprising at least one Group 10 metal compound on a support is heated in the presence of hydrogen from a first temperature from 0° C. to 200° C. to a second, higher temperature from 60° C. to 500° C. at a ramp rate no more than 100° C./hour. The dehydrogenation catalyst is contacted with hydrogen at the second temperature for a time from 3 to 300 hours to produce an activated dehydrogenation catalyst. A feed comprising cyclohexylbenzene and/or an alkyl-substituted cyclohexylbenzene compound is then contacted with hydrogen in the presence of the activated dehydrogenation catalyst under conditions effective to produce a dehydrogenation reaction product comprising biphenyl and/or an alkyl-substituted biphenyl compound.Type: ApplicationFiled: October 8, 2015Publication date: April 28, 2016Inventors: Jihad M. Dakka, Lorenzo C. DeCaul, Gregory J. De Martin, Michael Salciccioli, Neeraj Sangar, Aaron B. Pavlish, Ali A. Kheir, Gary D. Mohr
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Patent number: 9315430Abstract: The present disclosure relates to reactor components and their use, e.g., in regenerative reactors. A process and apparatus for utilizing different wetted areas along the flow path of a fluid in a pyrolysis reactor, e.g., a thermally regenerating reactor, such as a regenerative, reverse-flow reactor, is described.Type: GrantFiled: October 24, 2012Date of Patent: April 19, 2016Assignee: ExxonMobil Chemical Patents Inc.Inventors: Paul F. Keusenkothen, Frank Hershkowitz, Gary D. Mohr, ChangMin Chun, Jeffrey W. Frederick
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Publication number: 20150353447Abstract: A process for producing xylene comprises contacting a first feed comprising C9+ aromatic hydrocarbons, at least one C6-C7 aromatic hydrocarbon and hydrogen with a first catalyst composition to dealkylate at least part of the C9+ aromatic hydrocarbons containing C2+ alkyl groups and to saturate the resulting C2+ olefins to produce a second feed. The second feed is then contacted with a second catalyst composition under conditions effective to transalkylate at least part of the C9+ aromatic hydrocarbons with at least part of the C6-C7 aromatic hydrocarbon to produce a first product comprising xylene. Each of the first and second catalyst compositions is substantially free of amorphous alumina.Type: ApplicationFiled: May 20, 2015Publication date: December 10, 2015Inventors: Jeevan S. Abichandani, Gary D. Mohr, Robert G. Tinger
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Publication number: 20150126772Abstract: This invention relates to the production of terephthalic acid by 1) cycloaddition of 2,5 substituted furan (such as 2,5-bis hydroxymethylfuran or 5-hydroxymethylfurfural) and ethylene, and 2) the subsequent oxidation of the dehydrated cycloaddition product to terephthalic acid. The invention relates more particularly to overall biobased pathways for making terephthalic acid from carbohydrates such as hexoses (e.g., glucose or fructose).Type: ApplicationFiled: October 16, 2014Publication date: May 7, 2015Inventors: Guang Cao, James R. Lattner, Javier Guzman, Shifang L. Luo, Gary D. Mohr
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Publication number: 20150119544Abstract: The invention relates to processes for converting a mixture of hydrocarbon and sulfur-containing molecules such as mercaptan into products comprising acetylene, ethylene, and hydrogen sulfide, to processes utilizing the acetylene and ethylene resulting from the conversion, and to equipment useful for such processes.Type: ApplicationFiled: May 31, 2012Publication date: April 30, 2015Inventors: Paul F. Keusenkothen, Frank Hershkowitz, Robert D. Denton, Gary D. Mohr
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Publication number: 20150080545Abstract: In a process for producing 3,4? and/or 4,4? dimethyl-substituted biphenyl compounds, a feed comprising toluene is contacted with hydrogen in the presence of a hydroalkylation catalyst under conditions effective to produce a hydroalkylation reaction product comprising (methylcyclohexyl)toluenes. At least part of the hydroalkylation reaction product is dehydrogenated in the presence of a dehydrogenation catalyst under conditions effective to produce a dehydrogenation reaction product comprising a mixture of dimethyl-substituted biphenyl isomers. The dehydrogenation reaction product is then separated into at least a first stream containing at least 50% of 3,4? and 4,4? dimethylbiphenyl isomers by weight of the first stream and at least one second stream comprising one or more 2,x? (where x? is 2?, 3?, or 4?) and 3,3? dimethylbiphenyl isomers.Type: ApplicationFiled: September 8, 2014Publication date: March 19, 2015Inventors: Jihad M. Dakka, Lorenzo C. DeCaul, Keith H. Kuechler, Neeraj Sangar, Michael Salciccioli, Alan A. Galuska, Gary D. Mohr
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Publication number: 20150080546Abstract: In a process for producing 3,4? and/or 4,4? dimethyl-substituted biphenyl compounds, a feed comprising toluene is contacted with hydrogen in the presence of a hydroalkylation catalyst under conditions effective to produce a hydroalkylation reaction product comprising (methylcyclohexyl)toluenes. At least part of the hydroalkylation reaction product is dehydrogenated in the presence of a dehydrogenation catalyst under conditions effective to produce a dehydrogenation reaction product comprising a mixture of dimethyl-substituted biphenyl isomers. The dehydrogenation reaction product is then separated into at least a first stream containing at least 50% of 3,4? and 4,4? dimethylbiphenyl isomers by weight of the first stream and at least one second stream comprising one or more 2,x? (where x? is 2?, 3?, or 4?) and 3,3? dimethylbiphenyl isomers.Type: ApplicationFiled: September 8, 2014Publication date: March 19, 2015Inventors: Jihad M. Dakka, Lorenzo C. DeCaul, Keith H. Kuechler, Neeraj Sangar, Michael Salciccioli, Alan A. Galuska, Gary D. Mohr
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Publication number: 20140332445Abstract: In one aspect, the invention includes a reactor apparatus for pyrolyzing a hydrocarbon feedstock, the apparatus including: a reactor component comprising a refractory material in oxide form, the refractory material having a melting point of at least 2060° C. and which remains in oxide form when exposed to a gas having an oxygen partial pressure of 10?15 bar, a carbon partial pressure above the carbon partial pressure of the zirconium carbide and zirconium oxide phase transition at the same temperature, and at temperatures below the temperature of the zirconium triple point at the oxygen partial pressure of 10?15 bar; and ii) when exposed to a gas having an oxygen partial pressure of 10?15 bar and at temperatures above the zirconium triple point at the oxygen partial pressure of 10?15 bar. In some embodiments, the reactor comprises a regenerative pyrolysis reactor apparatus and in other embodiments it includes a reverse flow regenerative reactor apparatus.Type: ApplicationFiled: July 25, 2014Publication date: November 13, 2014Inventors: Frank Hershkowitz, ChangMin Chun, Paul F. Keusenkothen, Shiun Ling, Gary D. Mohr
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Publication number: 20140303418Abstract: The invention relates to processes for converting a mixture of hydrocarbon and sulfur-containing molecules such as mercaptan into products comprising acetylene, ethylene, and hydrogen sulfide, to processes utilizing the acetylene and ethylene resulting from the conversion, and to equipment useful for such processes.Type: ApplicationFiled: December 20, 2011Publication date: October 9, 2014Inventors: Paul F. Keusenkothen, Frank Hershkowitz, Robert D. Denton, Gary D. Mohr
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Publication number: 20140296597Abstract: An apparatus and method are provided for processing hydrocarbon feeds. The method enhances the conversion of hydrocarbon feeds into conversion products, such as ethylene. In particular, the present techniques utilize a high-severity thermal pyrolysis reactor that exposes a feed at a peak pyrolysis gas temperature ?1540° C. to produce a reactor product comprising ethylene and acetylene and has a C3+ to acetylene weight ratio ?0.5. Then, the method separates a product comprising tars and/or solids from at least a portion of the reactor product and converts at least a portion of the remaining reactor product into a conversion product, such as ethylene.Type: ApplicationFiled: December 20, 2011Publication date: October 2, 2014Applicant: Exxon Mobile Chemical Patents Inc.Inventors: Paul F. Keusenkothen, Frank Hershkowitz, Gary D. Mohr
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Publication number: 20140163287Abstract: An apparatus and method are provided for processing hydrocarbon feeds. The method enhances the conversion of hydrocarbon feeds into conversion products, such as ethylene and propylene. In particular, the present techniques combine a first hydrocarbon feed with a second hydrocarbon feed and a hydrogen (H2) containing stream to manage the hydrogen content of the feed provided to a pyrolysis reactor. The mixture is then exposed to high-severity operating conditions in a pyrolysis reactor and further processing into desired olefins.Type: ApplicationFiled: December 20, 2011Publication date: June 12, 2014Applicant: ExxonMobil Chemical Patents Inc.-Law TechnologyInventors: Paul F. Keusenkothen, Frank Hershkowitz, Jason D. Davis, Gary D. Mohr
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Publication number: 20130310601Abstract: The invention relates to processes for converting hydrocarbons to phthalic acids such as terephthalic acid. The invention also relates to polymerizing phthalic acid derivatives to produce, e.g., synthetic fibers.Type: ApplicationFiled: April 18, 2013Publication date: November 21, 2013Applicant: ExxonMobil Chemical Patents Inc.Inventors: Gary D. MOHR, Paul F. KEUSENKOTHEN, Frank HERSHKOWITZ, Jonathan M. MCCONNACHIE
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Publication number: 20130296619Abstract: In a process for producing olefins and aromatic hydrocarbons, a feed comprising a biomass pyrolysis oil or a fraction thereof is supplied to a steam cracking unit operating at a temperature of 600° C. to 1000° C. or a reverse flow reactor operating at a temperature of 900° C. to 1,700° C. and is thermally cracked to produce one or more hydrocarbon effluent fractions.Type: ApplicationFiled: May 7, 2012Publication date: November 7, 2013Inventors: LARRY L. IACCINO, SURBHI JAIN, GARY D. MOHR
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Publication number: 20130296620Abstract: The invention relates to processes for converting a mixture of hydrocarbon and oxygenate into products containing acetylene and carbon monoxide. The invention also relates to utilizing at least a portion of the acetylene and carbon monoxide for producing xylenes such as p-xylene, utilizing at least a portion of xylenes for producing polymeric fibers, and to equipment useful for these processes.Type: ApplicationFiled: April 9, 2013Publication date: November 7, 2013Applicant: ExxonMobil Chemical Patents Inc.Inventors: Gary D. Mohr, Jonathan M. McConnachie, Paul F. Keusenkothen, Frank Hershkowitz
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Publication number: 20130150644Abstract: The present disclosure relates to reactor components and their use, e.g., in regenerative reactors. A process and apparatus for utilizing different wetted areas along the flow path of a fluid in a pyrolysis reactor, e.g., a thermally regenerating reactor, such as a regenerative, reverse-flow reactor, is described.Type: ApplicationFiled: October 24, 2012Publication date: June 13, 2013Applicant: ExxonMobil Chemical Patents Inc.Inventors: Paul F. Keusenkothen, Frank Hershkowitz, Gary D. Mohr, ChangMin Chun, Jeffrey W. Frederick
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Patent number: 8399586Abstract: A process for feeding ethylene into a polymerization system includes providing a low-pressure ethylene stream, one or more low-pressure C3 to C20 monomer streams, an optional low-pressure inert solvent/diluent stream, and one or more reactors; metering the low-pressure ethylene stream, the one or more low-pressure C3 to C20 monomer streams, and the optional low-pressure inert solvent/diluent stream; blending the metered low-pressure ethylene stream, the metered one or more low-pressure C3 to C20 monomer streams, and the metered low-pressure optional inert solvent/diluent stream to form an ethylene-carrying low-pressure blended liquid feed stream; pressurizing the ethylene-carrying low-pressure blended liquid feed stream to the polymerization system pressure with one or more high-pressure pumps to thrm an ethylene-carrying high-pressure blended reactor feed stream; and feeding the ethylene-carrying high-pressure blended reactor feed stream to the one or more reactors.Type: GrantFiled: September 3, 2009Date of Patent: March 19, 2013Assignee: ExxonMobil Research and Engineering CompanyInventors: Gabor Kiss, Robert Patrick Reynolds, Jr., John W. Chu, James Richardson Lattner, Gary D. Mohr
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Patent number: 8192690Abstract: A method of treating a gas phase fluidized bed reactor and a method of polymerizing olefins in a gas phase fluidized bed reactor in the presence of a catalyst prone to cause sheeting by introducing a chromium-containing compound into the reactor and forming a high molecular weight polymer coating on the walls of the reactor. Furthermore, a device for and method of introducing the chromium-containing compound into the fluidized bed reactor at a plurality of locations in proximity to a lower section of a bed section wall of the fluidized bed reactor, and forming a high molecular weight polymer coating on the bed section wall.Type: GrantFiled: October 20, 2011Date of Patent: June 5, 2012Assignee: Univation Technologies, LLCInventors: Agapios K. Agapiou, David M. Glowczwski, Zerong Lin, Gary D. Mohr, Ted A. Powell, Michael E. Sieloff, Edward F. Smith, Kevin B. Stavens, Keith W. Trapp, Michael E. Muhle, F. David Hussein
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Publication number: 20120070575Abstract: A method for treating at least one interior surface (for example, a bed wall) of a fluidized bed polymerization reactor system, including by applying a solution catalyst (preferably at least substantially uniformly and in liquid form) to each surface, and optionally (where a catalyst component of the solution catalyst comprises at least one chromium containing compound) oxidizing at least some of the applied chromium containing compound in a controlled manner.Type: ApplicationFiled: November 22, 2011Publication date: March 22, 2012Applicant: UNIVATION TECHNOLOGIES, LLCInventors: Robert O. Hagerty, Kevin B. Stavens, Randall B. Laird, Zerong Lin, Michael E. Muhle, Agapios K. Agapiou, David M. Glowczwski, Fathi D. Hussein, Gary D. Mohr, Ted A. Powell, Michael E. Sieloff, Edward F. Smith, Keith W. Trapp
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Patent number: 8138384Abstract: In a process for converting methane to alkylated aromatic hydrocarbons, a feed containing methane is contacted with a dehydrocyclization catalyst under conditions effective to convert said methane to aromatic hydrocarbons and produce a first effluent stream comprising aromatic hydrocarbons and hydrogen. At least a portion of said aromatic hydrocarbon from said first effluent stream is then contacted with an alkylating agent under conditions effective to alkylate said aromatic hydrocarbon and produce an alkylated aromatic hydrocarbon having more alkyl side chains than said aromatic hydrocarbon prior to the alkylating.Type: GrantFiled: December 2, 2005Date of Patent: March 20, 2012Assignee: ExxonMobil Chemical Patents Inc.Inventors: Larry L. Iaccino, Elizabeth L. Stavens, Gary D. Mohr, Matthew J. Vincent
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Patent number: 8129481Abstract: A method for treating at least one interior surface (for example, a bed wall) of a fluidized bed polymerization reactor system, including by applying a solution catalyst (preferably at least substantially uniformly and in liquid form) to each surface, and optionally (where a catalyst component of the solution catalyst comprises at least one chromium containing compound) oxidizing at least some of the applied chromium containing compound in a controlled manner.Type: GrantFiled: November 22, 2011Date of Patent: March 6, 2012Assignee: Univation Technologies, LLCInventors: Robert O. Hagerty, Kevin B. Stavens, Randall B. Laird, Zerong Lin, Michael E. Muhle, Agapios K. Agapiou, David M. Glowczwski, Fathi D. Hussein, Gary D. Mohr, Ted A. Powell, Michael E. Sieloff, Edward F. Smith, Keith W. Trapp