Patents by Inventor Dean E. Rende

Dean E. Rende 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).

  • Publication number: 20140058092
    Abstract: Methods and systems are provided for converting methane in a feed stream to acetylene. The method includes removing at least a portion of carbon monoxide from a hydrocarbon stream. The hydrocarbon stream is introduced into a supersonic reactor and pyrolyzed to convert at least a portion of the methane to acetylene. The reactor effluent stream may be treated to convert acetylene to another hydrocarbon process. The method according to certain aspects includes controlling the level of carbon monoxide in the hydrocarbon stream.
    Type: Application
    Filed: July 25, 2013
    Publication date: February 27, 2014
  • Patent number: 8609917
    Abstract: One exemplary embodiment can be a process for increasing a mole ratio of methyl to phenyl of one or more aromatic compounds in a feed. The process can include reacting an effective amount of one or more aromatic compounds and an effective amount of one or more non-aromatic compounds to convert about 90%, by weight, of one or more C6+ non-aromatic compounds.
    Type: Grant
    Filed: January 19, 2010
    Date of Patent: December 17, 2013
    Assignee: UOP LLC
    Inventors: Antoine Negiz, Edwin Paul Boldingh, Gregory J. Gajda, Dean E. Rende, James E. Rekoske, David E. Mackowiak, Paul Barger
  • Patent number: 8598395
    Abstract: One exemplary embodiment can be a process for increasing a mole ratio of methyl to phenyl of one or more aromatic compounds in a feed. The process can include reacting an effective amount of one or more aromatic compounds and an effective amount of one or more aromatic methylating agents to form a product having a mole ratio of methyl to phenyl of at least about 0.1:1 greater than the feed.
    Type: Grant
    Filed: January 19, 2010
    Date of Patent: December 3, 2013
    Assignee: UOP LLC
    Inventors: Antoine Negiz, Edwin Paul Boldingh, Gregory J. Gajda, Dean E. Rende, James E. Rekoske, David E. Mackowiak, Paul Barger
  • Patent number: 8563795
    Abstract: One exemplary embodiment can be a process using an aromatic methylating agent. Generally, the process includes reacting an effective amount of the aromatic methylating agent having at least one of an alkane, a cycloalkane, an alkane radical, and a cycloalkane radical with one or more aromatic compounds. As such, at least one of the one or more aromatic compounds may be converted to one or more higher methyl substituted aromatic compounds to provide a product having a greater mole ratio of methyl to phenyl than a feed.
    Type: Grant
    Filed: January 19, 2010
    Date of Patent: October 22, 2013
    Assignee: UOP LLC
    Inventors: Antoine Negiz, Edwin P. Boldingh, Gregory J. Gajda, Dean E. Rende, James E. Rekoske, David E. Mackowiak, Paul Barger
  • Patent number: 8227369
    Abstract: A layered composition which can be used in various processes has been developed. The composition comprises an inner core such as a cordierite core and an outer layer comprising a refractory inorganic oxide, a fibrous component and an inorganic binder. The refractory inorganic oxide layer can be alumina, zirconia, titania, etc. while the fibrous component can be titania fibers, silica fibers, carbon fibers, etc. The inorganic oxide binder can be alumina, silica, zirconia, etc. The layer can also contain catalytic metals such as gold and platinum plus other modifiers. The layered composition is prepared by coating the inner core with a slurry comprising the refractory inorganic oxide, fibrous component, an inorganic binder precursor and an organic binding agent such as polyvinyl alcohol. The composition can be used in various hydrocarbon conversion processes including production of vinyl acetate.
    Type: Grant
    Filed: May 25, 2005
    Date of Patent: July 24, 2012
    Assignee: Celanese International Corp.
    Inventors: Tao Wang, Dean E. Rende, James E. Rekoske, Jeffery C. Bricker, Jeffrey L. Boike, Masao Takayama, Kouji Hara, Nobuyuki Aoi
  • Publication number: 20110318932
    Abstract: Processes for treating gas streams contaminated with fluorine-containing compounds, in addition to apparatuses for such treatment processes that may also be used to monitor the emission of these compounds, are disclosed. In the processes and apparatuses, catalytic conversion (pyrolysis) one or more fluorine-containing contaminants (e.g., perfluorocarbon) in the gas stream is carried out using a catalyst comprising tungstated zirconia or sulfated zirconia. The catalysts exhibit exceptional responsiveness, recovery, and/or activity, compared to conventional catalysts, for this purpose.
    Type: Application
    Filed: June 28, 2010
    Publication date: December 29, 2011
    Applicant: UOP LLC
    Inventors: Lyle E. MONSON, Dean E. RENDE
  • Patent number: 8026194
    Abstract: A catalyst for selective hydrogenation of hydrocarbons is presented. The catalyst selectively hydrogenates acetylenes and diolefins to increase the monoolefins in a product stream. The catalyst includes a layered structure with an inert inner core and an outer layer bonded to the inner core, where the outer layer is a metal oxide and has at least two metals deposited on the outer layer.
    Type: Grant
    Filed: November 19, 2008
    Date of Patent: September 27, 2011
    Assignee: UOP LLC
    Inventors: Antoine Negiz, Gregory J. Gajda, Dean E. Rende
  • Publication number: 20110174692
    Abstract: One exemplary embodiment can be a process for increasing a mole ratio of methyl to phenyl of one or more aromatic compounds in a feed. The process can include reacting an effective amount of one or more aromatic compounds and an effective amount of one or more non-aromatic compounds to convert about 90%, by weight, of one or more C6+ non-aromatic compounds.
    Type: Application
    Filed: January 19, 2010
    Publication date: July 21, 2011
    Inventors: Antoine Negiz, Edwin Paul Boldingh, Gregory J. Gajda, Dean E. Rende, James E. Rekoske, David E. Mackowiak, Paul Barger
  • Publication number: 20110178354
    Abstract: One exemplary embodiment can be a process using an aromatic methylating agent. Generally, the process includes reacting an effective amount of the aromatic methylating agent having at least one of an alkane, a cycloalkane, an alkane radical, and a cycloalkane radical with one or more aromatic compounds. As such, at least one of the one or more aromatic compounds may be converted to one or more higher methyl substituted aromatic compounds to provide a product having a greater mole ratio of methyl to phenyl than a feed.
    Type: Application
    Filed: January 19, 2010
    Publication date: July 21, 2011
    Inventors: Antoine Negiz, Edwin Paul Boldingh, Gregory J. Gajda, Dean E. Rende, James E. Rekoske, David E. Mackowiak, Paul Barger, Paula L. Bogdan
  • Publication number: 20110178356
    Abstract: One exemplary embodiment can be a process for increasing a mole ratio of methyl to phenyl of one or more aromatic compounds in a feed. The process can include reacting an effective amount of one or more aromatic compounds and an effective amount of one or more aromatic methylating agents to form a product having a mole ratio of methyl to phenyl of at least about 0.1:1 greater than the feed.
    Type: Application
    Filed: January 19, 2010
    Publication date: July 21, 2011
    Inventors: Antoine Negiz, Edwin P. Boldingh, Gregory J. Gajda, Dean E. Rende, James E. Rekoske, David E. Mackowiak, Paul Barger
  • Publication number: 20110172088
    Abstract: A catalyst composition, useful for a diversity of chemical production processes, preferably comprises a glass substrate, with one or more functional surface active constituents integrated on and/or in the substrate surface. A substantially nonporous acid resistant glass substrate has (i) a total surface area between about 0.01 m2/g and 10 m2/g; (ii) a predetermined isoelectric point (IEP) obtained in a pH range greater than or equal to 6.0, but less than or equal to 14, and (iii) a SARCNa less than or equal to about 0.5. At least one catalytically-active region may be contiguous or discontiguous and has a mean thickness less than or equal to about 30 nm, preferably less than or equal to 20 nm and more preferably less than or equal to 10 nm.
    Type: Application
    Filed: March 22, 2011
    Publication date: July 14, 2011
    Applicant: UOP LLC
    Inventors: Robert L Bedard, Dean E. Rende, Ally S. Y. Chan
  • Publication number: 20110152066
    Abstract: A layered composition which can be used in various processes has been developed. The composition comprises an inner core such as a cordierite core and an outer layer comprising a refractory inorganic oxide, a fibrous component and an inorganic binder. The refractory inorganic oxide layer can be alumina, zirconia, titania, etc. while the fibrous component can be titania fibers, silica fibers, carbon fibers, etc. The inorganic oxide binder can be alumina, silica, zirconia, etc. The layer can also contain catalytic metals such as gold and platinum plus other modifiers. The layered composition is prepared by coating the inner core with a slurry comprising the refractory inorganic oxide, fibrous component, an inorganic binder precursor and an organic binding agent such as polyvinyl alcohol. The composition can be used in various hydrocarbon conversion processes including production of vinyl acetate.
    Type: Application
    Filed: February 28, 2011
    Publication date: June 23, 2011
    Applicant: Celanese International Corporation
    Inventors: Tao Wang, Dean E. Rende, James E. Rekoske, Jeffery C. Bricker, Jeffrey L. Boike, Masao Takayama, Kouji Hara, Nobuyuki Aoi
  • Patent number: 7897804
    Abstract: A layered composition which can be used in various processes has been developed. The composition comprises an inner core such as a cordierite core and an outer layer comprising a refractory inorganic oxide, a fibrous component and an inorganic binder. The refractory inorganic oxide layer can be alumina, zirconia, titania, etc. while the fibrous component can be titania fibers, silica fibers, carbon fibers, etc. The inorganic oxide binder can be alumina, silica, zirconia, etc. The layer can also contain catalytic metals such as gold and platinum plus other modifiers. The layered composition is prepared by coating the inner core with a slurry comprising the refractory inorganic oxide, fibrous component, an inorganic binder precursor and an organic binding agent such as polyvinyl alcohol. The composition can be used in various hydrocarbon conversion processes including production of vinyl acetate.
    Type: Grant
    Filed: April 7, 2008
    Date of Patent: March 1, 2011
    Assignee: Celanese International Corp.
    Inventors: Tao Wang, Dean E. Rende, James E. Rekoske, Jeffery C. Bricker, Jeffrey L. Boike, Masao Takayama, Kouji Hara, Nobuyuki Aoi
  • Publication number: 20100323880
    Abstract: The present invention provides a method of increasing stability of a catalyst used in a dehydrogenation process. The method includes storing fresh catalyst in a reduction zone, passing a gas through the reduction zone, introducing hydrocarbons and hydrogen gas into a reactor positioned downstream from the reduction zone to facilitate a dehydrogenation reaction, and replenishing spent catalyst in the reactor with fresh catalyst from the reduction zone. The gas has a moisture content at or below about 4000 ppmv and a temperature at or below about 290° C. The reactor includes catalyst for increasing the rate of the dehydrogenation reaction. The moisture content of the gas may be reduced to at or below about 4000 ppmv by passing the gas through a drier or by using an inert gas stream. The temperature of the gas may also be reduced.
    Type: Application
    Filed: June 23, 2009
    Publication date: December 23, 2010
    Inventors: Jeffrey Pieper, Wei Pan, Dean E. Rende, Gary S. Malott
  • Publication number: 20100273645
    Abstract: A catalyst composition, useful for a diversity of chemical production processes, preferably comprises a glass substrate, with one or more functional surface active constituents integrated on and/or in the substrate surface. A substantially nonporous substrate has (i) a total surface area between about 0.01 m2/g and 10 m2/g; and (ii) a predetermined isoelectric point (IEP) obtained in a pH range greater than 0, preferably greater than or equal to 4.5, or more preferably greater than or equal to 6.0, but less than or equal to 14. At least one catalytically-active region may be contiguous or discontiguous and has a mean thickness less than or equal to about 30 nm, preferably less than or equal to 20 nm and more preferably less than or equal to 10 nm. Preferably, the substrate is a glass composition having a SARCNa less than or equal to about 0.5.
    Type: Application
    Filed: April 24, 2009
    Publication date: October 28, 2010
    Inventors: Robert L. Bedard, Dean E. Rende, Ally S. Chan
  • Patent number: 7807045
    Abstract: A layered composition which can be used in various processes has been developed. The composition comprises an inner core such as a cordierite core and an outer layer comprising a refractory inorganic oxide, a fibrous component and an inorganic binder. The refractory inorganic oxide layer can be alumina, zirconia, titania, etc. while the fibrous component can be titania fibers, silica fibers, carbon fibers, etc. The inorganic oxide binder can be alumina, silica, zirconia, etc. The layer can also contain catalytic metals such as gold and platinum plus other modifiers. The layered composition is prepared by coating the inner core with a slurry comprising the refractory inorganic oxide, fibrous component, an inorganic binder precursor and an organic binding agent such as polyvinyl alcohol. The composition can be used in various hydrocarbon conversion processes.
    Type: Grant
    Filed: December 15, 2009
    Date of Patent: October 5, 2010
    Assignee: UOP LLC
    Inventors: Dean E. Rende, James E. Rekoske, Jeffery C. Bricker, Jeffrey L. Boike, Masao Takayama, Kouji Hara, Nobuyuki Aoi
  • Patent number: 7799727
    Abstract: A layered composition which can be used in various processes has been developed. The composition comprises an inner core such as a cordierite core and an outer layer comprising a refractory inorganic oxide, a fibrous component and an inorganic binder. The refractory inorganic oxide layer can be alumina, zirconia, titania, etc. while the fibrous component can be titania fibers, silica fibers, carbon fibers, etc. The inorganic oxide binder can be alumina, silica, zirconia, etc. The layer can also contain catalytic metals such as gold and platinum plus other modifiers. The layered composition is prepared by coating the inner core with a slurry comprising the refractory inorganic oxide, fibrous component, an inorganic binder precursor and an organic binding agent such as polyvinyl alcohol. The composition can be used in various hydrocarbon conversion processes.
    Type: Grant
    Filed: December 15, 2009
    Date of Patent: September 21, 2010
    Assignee: UOP LLC
    Inventors: Dean E. Rende, James E. Rekoske, Jeffery C. Bricker, Jeffrey L. Boike, Masao Takayama, Kouji Hara, Nobuyuki Aoi
  • Patent number: 7781630
    Abstract: Integrated processes for making detergent range alkylbenzenes from C5-C6-containing feeds involve feed pretreatment and/or selective hydrogenation to enable acceptable quality alkylbenzene production at attractive capital and operating costs.
    Type: Grant
    Filed: July 29, 2009
    Date of Patent: August 24, 2010
    Assignee: UOP LLC
    Inventors: Bryan K. Glover, Stephen W. Sohn, Mark G. Riley, Dean E. Rende
  • Patent number: 7781631
    Abstract: Integrated processes for making detergent range alkylbenzenes from C5-C6-containing feeds involve feed pretreatment and/or selective hydrogenation to enable acceptable quality alkylbenzene production at attractive capital and operating costs.
    Type: Grant
    Filed: July 29, 2009
    Date of Patent: August 24, 2010
    Assignee: UOP LLC
    Inventors: Bryan K. Glover, Stephen W. Sohn, Mark G. Riley, Dean E. Rende
  • Patent number: 7781632
    Abstract: Integrated processes for making detergent range alkylbenzenes from C5-C6-containing feeds involve feed pretreatment and/or selective hydrogenation to enable acceptable quality alkylbenzene production at attractive capital and operating costs.
    Type: Grant
    Filed: July 29, 2009
    Date of Patent: August 24, 2010
    Assignee: UOP LLC
    Inventors: Bryan K. Glover, Stephen W. Sohn, Mark G. Riley, Dean E. Rende