Patents by Inventor Albert E. Schweizer

Albert E. Schweizer 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: 10065905
    Abstract: Increase propane dehydrogenation activity of a partially deactivated dehydrogenation catalyst by heating the partially deactivated catalyst to a temperature of at least 660° C., conditioning the heated catalyst in an oxygen-containing atmosphere and, optionally, stripping molecular oxygen from the conditioned catalyst.
    Type: Grant
    Filed: October 31, 2017
    Date of Patent: September 4, 2018
    Assignee: Dow Global Technologies LLC
    Inventors: Matthew Pretz, Lin Luo, Susan Domke, Howard W. Clark, Richard A. Pierce, Andrzej M. Malek, Mark W. Stewart, Brien A. Stears, Albert E. Schweizer, Jr., Guido Capone, Duncan P. Coffey, Isa K. Mbaraka
  • Publication number: 20180057422
    Abstract: Increase propane dehydrogenation activity of a partially deactivated dehydrogenation catalyst by heating the partially deactivated catalyst to a temperature of at least 660° C., conditioning the heated catalyst in an oxygen-containing atmosphere and, optionally, stripping molecular oxygen from the conditioned catalyst.
    Type: Application
    Filed: October 31, 2017
    Publication date: March 1, 2018
    Inventors: Matthew Pretz, Lin Luo, Susan Domke, Howard W. Clark, Richard A. Pierce, Andrzej M. Malek, Mark W. Stewart, Brien A. Stears, Albert E. Schweizer, JR., Guido Capone, Duncan P. Coffey, Isa K. Mbaraka
  • Patent number: 9834496
    Abstract: Increase propane dehydrogenation activity of a partially deactivated dehydrogenation catalyst by heating the partially deactivated catalyst to a temperature of at least 660° C., conditioning the heated catalyst in an oxygen-containing atmosphere and, optionally, stripping molecular oxygen from the conditioned catalyst.
    Type: Grant
    Filed: July 11, 2012
    Date of Patent: December 5, 2017
    Assignee: Dow Global Technologies LLC
    Inventors: Matthew Pretz, Lin Luo, Susan Domke, Howard W. Clark, Richard A. Pierce, Andrzej M. Malek, Mark W. Stewart, Brien A. Stears, Albert E. Schweizer, Jr., Guido Capone, Duncan P. Coffey, Isa K. Mbaraka
  • Patent number: 9242919
    Abstract: A process to prepare an olefin from its corresponding alcohol is improved by reacting, under reaction conditions including a first temperature, an aliphatic alcohol and, optionally, diluent water, to form a reaction product including at least a dialkyl ether. The product is then reacted again, under higher temperature to complete the dehydration of the dialkyl ether to the desired olefin. This process is particularly suitable to prepare ethene from ethyl alcohol. The stepped temperature scheme serves to reduce the formation of byproduct aldehydes, which in turn reduces coke formation, fouling, and the need to handle large amounts of water, thereby lowering energy and capital costs.
    Type: Grant
    Filed: June 28, 2010
    Date of Patent: January 26, 2016
    Assignee: Dow Global Technologies LLC
    Inventors: Mark William Stewart, Howard W. Clark, Duncan Paul Coffey, Lin Luo, Albert E. Schweizer, Jr.
  • Patent number: 9233367
    Abstract: A process for preparing a molybdenum sulfide-based catalyst comprises drying a precipitated molybdenum sulfide-based catalyst precursor, for example, a wet filter cake, such that a particulate catalyst precursor, containing from 12 to 15 percent by weight water, is formed. The particulate catalyst precursor is desirably in the form of free-flowing particles. The particulate catalyst precursor is then auto-reduced. A rotary furnace that subjects the catalyst precursor to at least two zones having distinct temperatures may be conveniently used for drying, auto-reduction, or both. The staged drying and auto-reduction steps reduce the tendency of the precursor to self-heat, which is undesirable because it reduces both the activity and selectivity of the final catalyst.
    Type: Grant
    Filed: April 1, 2011
    Date of Patent: January 12, 2016
    Assignee: Dow Global Technologies LLC
    Inventors: Robert J. Gulotty, Jr., Dean M. Millar, Albert E. Schweizer, Jr., Raymond M. Collins
  • Patent number: 9180430
    Abstract: Catalytic composition for production of olefins and methods of using same to decrease production of oxygenate byproducts. The catalytic composition includes an admixture of an alumina dehydration catalyst and at least one additional metal oxide.
    Type: Grant
    Filed: February 25, 2011
    Date of Patent: November 10, 2015
    Assignee: Dow Global Technologies LLC
    Inventors: Yu Liu, Andrzej M. Malek, Duncan Coffey, Eric E. Stangland, Albert E. Schweizer
  • Publication number: 20150139890
    Abstract: A process for preparing a molybdenum sulfide-based catalyst comprises drying a precipitated molybdenum sulfide-based catalyst precursor, for example, a wet filter cake, such that a particulate catalyst precursor, containing from 12 to 15 percent by weight water, is formed. The particulate catalyst precursor is desirably in the form of free-flowing particles. The particulate catalyst precursor is then auto-reduced. A rotary furnace that subjects the catalyst precursor to at least two zones having distinct temperatures may be conveniently used for drying, auto-reduction, or both. The staged drying and auto-reduction steps reduce the tendency of the precursor to self-heat, which is undesirable because it reduces both the activity and selectivity of the final catalyst.
    Type: Application
    Filed: April 1, 2011
    Publication date: May 21, 2015
    Applicant: DOW GLOBAL TECHNOLOGIES LLC
    Inventors: Robert J. Gulotty, JR., Dean Millar, Albert E. Schweizer, JR., Raymond M. Collins
  • Publication number: 20140200385
    Abstract: Increase propane dehydrogenation activity of a partially deactivated dehydrogenation catalyst by heating the partially deactivated catalyst to a temperature of at least 660° C, conditioning the heated catalyst in an oxygen-containing atmosphere and, optionally, stripping molecular oxygen from the conditioned catalyst.
    Type: Application
    Filed: July 11, 2012
    Publication date: July 17, 2014
    Applicant: DOW GLOBAL TECHNOLOGIES LLC
    Inventors: Matthew T. Pretz, LIn Luo, Susan Domke, Howard W. Clark, Richard A. Pierce, Andrzej M. Malek, Mark W. Stewart, Brien A. Stears, Albert E. Schweizer, JR., Guido Capore, Duncan P. Coffey, Isa K. Mbaraka
  • Patent number: 8710288
    Abstract: A process for converting an oxygenate-containing feedstock to a product comprising olefins comprises including in the oxygenate-containing feedstock an amount of ammonia. The presence of the ammonia increases the product's ratio of ethylene to propylene.
    Type: Grant
    Filed: March 11, 2011
    Date of Patent: April 29, 2014
    Assignee: Dow Global Technologies LLC
    Inventors: Yu Liu, Albert E. Schweizer, Jr., Andrzej M. Malek
  • Patent number: 8598399
    Abstract: A process to prepare propylene showing desirably increased selectivity comprises contacting, at an elevated temperature, ethanol and a rhenium oxide-modified ZSM-5 zeolite catalyst, under conditions suitable to form propylene. The rhenium oxide-modified ZSM-5 zeolite catalyst may be prepared by impregnating, in an aqueous or organic medium, a ZSM-5 zeolite with a rhenium source, under conditions suitable to form a catalyst precursor, and calcining the catalyst precursor under conditions suitable to form a rhenium oxide-modified ZSM-5 zeolite catalyst.
    Type: Grant
    Filed: March 7, 2011
    Date of Patent: December 3, 2013
    Assignee: Dow Global Technologies LLC
    Inventors: Yu Liu, Andrzej M. Malek, Albert E. Schweizer, Jr.
  • Publication number: 20130012748
    Abstract: A process for converting an oxygenate-containing feedstock to a product comprising olefins comprises including in the oxygenate-containing feedstock an amount of ammonia. The presence of the ammonia increases the product's ratio of ethylene to propylene.
    Type: Application
    Filed: March 11, 2011
    Publication date: January 10, 2013
    Applicant: DOW GLOBAL TECHNOLOGIES LLC
    Inventors: Yu Liu, Albert E. Schweizer, JR., Andrzej M. Malek
  • Publication number: 20130012749
    Abstract: Catalytic composition for production of olefins and methods of using same to decrease production of oxygenate byproducts. The catalytic composition includes an admixture of an alumina dehydration catalyst and at least one additional metal oxide.
    Type: Application
    Filed: February 25, 2011
    Publication date: January 10, 2013
    Inventors: Yu Liu, Andrzej M. Malek, Duncan Coffey, Eric E. Stangland, Albert E. Schweizer
  • Publication number: 20120330080
    Abstract: A process to prepare propylene showing desirably increased selectivity comprises contacting, at an elevated temperature, ethanol and a rhenium oxide-modified ZSM-5 zeolite catalyst, under conditions suitable to form propylene. The rhenium oxide-modified ZSM-5 zeolite catalyst may be prepared by impregnating, in an aqueous or organic medium, a ZSM-5 zeolite with a rhenium source, under conditions suitable to form a catalyst precursor, and calcining the catalyst precursor under conditions suitable to form a rhenium oxide-modified ZSM-5 zeolite catalyst.
    Type: Application
    Filed: March 7, 2011
    Publication date: December 27, 2012
    Applicant: Dow Global Technologies LLC
    Inventors: Yu Liu, Andrzej M. Malek, Albert E. Schweizer, JR.
  • Publication number: 20120101320
    Abstract: A process to prepare an olefin from its corresponding alcohol is improved by reacting, under reaction conditions including a first temperature, an aliphatic alcohol and, optionally, diluent water, to form a reaction product including at least a dialkyl ether. The product is then reacted again, under higher temperature to complete the dehydration of the dialkyl ether to the desired olefin. This process is particularly suitable to prepare ethene from ethyl alcohol. The stepped temperature scheme serves to reduce the formation of byproduct aldehydes, which in turn reduces coke formation, fouling, and the need to handle large amounts of water, thereby lowering energy and capital costs.
    Type: Application
    Filed: June 28, 2010
    Publication date: April 26, 2012
    Inventors: Mark William Stewart, Howard W. Clark, Duncan Paul Coffey, Lin Luo, Albert E. Schweizer, JR.
  • Publication number: 20100312029
    Abstract: A method for dehydroaromatizing methane by contacting a feedstream that contains methane, in a circulating fluid bed reactor/regenerator, with a catalyst and under conditions sufficient to dehydroaromatize methane and produce at least one liquid aromatic compound such as benzene, toluene or naphthalene and hydrogenated products such as cyclohexane and decahydronaphthalene. The method may also be used to produce hydrogen. The feedstream may be a natural gas feedstock. The method may include one step and two step catalyst regeneration.
    Type: Application
    Filed: November 17, 2008
    Publication date: December 9, 2010
    Applicant: Dow Global Technologies Inc.
    Inventors: Robert J. Gulotty, JR., Joseph E. Pelati, Arthur R. Prunier, JR., Albert E. Schweizer, JR.
  • Patent number: 7541508
    Abstract: The invention relates to a molecular sieve catalyst composition, to a method of making or forming the molecular sieve catalyst composition, and to a conversion process using the catalyst composition. In particular, the invention is directed to making a formulated molecular sieve catalyst composition from a slurry of formulation composition of a synthesized molecular sieve that has not been fully dried, a binder and an optional matrix material. In a more preferred embodiment, the weight ratio of the binder to the molecular sieve and/or the solid content of the slurry is controlled to provide an improved attrition resistant catalyst composition, particularly useful in a conversion process for producing olefin(s), preferably ethylene and/or propylene, from a feedstock, preferably an oxygenate containing feedstock.
    Type: Grant
    Filed: December 18, 2006
    Date of Patent: June 2, 2009
    Assignee: ExxonMobile Chemical Patents Inc.
    Inventors: Stephen N. Vaughn, Yun-feng Chang, Luc R. M. Martens, Kenneth R. Clem, Machteld M. Mertens, Albert E. Schweizer
  • Publication number: 20080275279
    Abstract: An oxidative halogenation process involving contacting methane, a C1 halogenated hydrocarbon, or a mixture thereof with a source of halogen and a source of oxygen, at a molar ratio of reactant hydrocarbon to source of halogen in a feed to the reactor greater than 23/1, and/or at a molar ratio of reactant hydrocarbon to source of oxygen in a feed to the reactor greater than about 46/1; in the presence of a rare earth halide or rare earth oxyhalide catalyst, to produce a halogenated C1 product having at least one more halogen as compared with the C1 reactant hydrocarbon, preferably, methyl chloride. The process can be advantageously conducted to total conversion of source of halogen and source of oxygen. The process can be advantageously conducted with essentially no halogen in the feed to the reactor, by employing a separate catalyst halogenation step in a pulse, swing or circulating bed mode.
    Type: Application
    Filed: April 25, 2006
    Publication date: November 6, 2008
    Inventors: Simon G. Podkolzin, Eric E. Stangland, Albert E. Schweizer, Mark E. Jones
  • Publication number: 20080269436
    Abstract: The invention relates to a molecular sieve catalyst composition, to a method of making or forming the molecular sieve catalyst composition, and to a conversion process using the catalyst composition. In particular, the invention is directed to making a formulated molecular sieve catalyst composition from a slurry of formulation composition of a synthesized molecular sieve that has not been fully dried, a binder and an optional matrix material. In a more preferred embodiment, the weight ratio of the binder to the molecular sieve and/or the solid content of the slurry is controlled to provide an improved attrition resistant catalyst composition, particularly useful in a conversion process for producing olefin(s), preferably ethylene and/or propylene, from a feedstock, preferably an oxygenate containing feedstock.
    Type: Application
    Filed: December 18, 2006
    Publication date: October 30, 2008
    Inventors: Stephen N. Vaughn, Yun-feng Chang, Luc R.M. Martens, Kenneth R. Clem, Machteld M. Mertens, Albert E. Schweizer
  • Patent number: 7301065
    Abstract: The invention relates to a molecular sieve catalyst composition, to a method of making or forming the molecular sieve catalyst composition, and to a conversion process using the catalyst composition. In particular, the invention is directed to making a formulated molecular sieve catalyst composition from a slurry of formulation composition of a synthesized molecular sieve that has not been fully dried, a binder and an optional matrix material. In a more preferred embodiment, the weight ratio of the binder to the molecular sieve and/or the solid content of the slurry is controlled to provide an improved attrition resistant catalyst composition, particularly useful in a conversion process for producing olefin(s), preferably ethylene and/or propylene, from a feedstock, preferably an oxygenate containing feedstock.
    Type: Grant
    Filed: July 16, 2004
    Date of Patent: November 27, 2007
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Stephen N. Vaughn, Yun-feng Chang, Luc R. M. Martens, Kenneth R. Clem, Machteld M. Mertens, Albert E. Schweizer
  • Patent number: 7160831
    Abstract: The invention relates to a molecular sieve catalyst composition, to a method of making or forming the molecular sieve catalyst composition, and to a conversion process using the catalyst composition. In particular, the invention is directed to making a formulated molecular sieve catalyst composition from a slurry of formulation composition of a synthesized molecular sieve that has not been fully dried, a binder and an optional matrix material. In a more preferred embodiment, the weight ratio of the binder to the molecular sieve and/or the solid content of the slurry is controlled to provide an improved attrition resistant catalyst composition, particularly useful in a conversion process for producing olefin(s), preferably ethylene and/or propylene, from a feedstock, preferably an oxygenate containing feedstock.
    Type: Grant
    Filed: June 24, 2002
    Date of Patent: January 9, 2007
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Stephen N. Vaughn, Yun-feng Chang, Luc R. M. Martens, Kenneth R. Clem, Machteld M. Mertens, Albert E. Schweizer