Patents by Inventor Raymond Elbert Fogle
Raymond Elbert Fogle 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: 9505692Abstract: The invention provides improved energy content in and shaft power recovery from off-gas from xylene oxidation reactions while at the same time minimizing wastewater treatment cost. More shaft power is produced using off-gas than is required to drive the main air compressor, even with preferred, relatively low oxidation temperatures. Simultaneously, an amount of wastewater greater than byproduct water from oxidation of xylene is kept in vapor form and treated along with off-gas pollutants in a self-sustaining (self-fueling) gas-phase thermal oxidative destruction unit. Optionally, off-gas is combined from multiple xylene oxidation reactors, comprising primary and/or secondary oxidation reactors and forming TPA and/or IPA. Optionally, air compressor condensate and caustic scrubber blowdown are used in a TPA process or as utility water, effectively eliminating normal flow of liquid wastewater effluent from a TPA plant.Type: GrantFiled: September 9, 2009Date of Patent: November 29, 2016Assignee: Grupo Petrotemex, S.A. de C.V.Inventors: Raymond Elbert Fogle, III, Ronald Buford Sheppard, Timothy Alan Upshaw, Alan George Wonders
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Patent number: 9493387Abstract: The invention provides improved energy content in and shaft power recovery from off-gas from xylene oxidation reactions while at the same time minimizing wastewater treatment cost. More shaft power is produced using off-gas than is required to drive the main air compressor, even with preferred, relatively low oxidation temperatures. Simultaneously, an amount of wastewater greater than byproduct water from oxidation of xylene is kept in vapor form and treated along with off-gas pollutants in a self-sustaining (self-fueling) gas-phase thermal oxidative destruction unit. Optionally, off-gas is combined from multiple xylene oxidation reactors, comprising primary and/or secondary oxidation reactors and forming TPA and/or IPA. Optionally, air compressor condensate and caustic scrubber blowdown are used in a TPA process or as utility water, effectively eliminating normal flow of liquid wastewater effluent from a TPA plant.Type: GrantFiled: September 9, 2009Date of Patent: November 15, 2016Assignee: Grupo Petrotemex, S.A. de C.V.Inventors: Raymond Elbert Fogle, III, Ronald Buford Sheppard, Timothy Alan Upshaw, Alan George Wonders
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Patent number: 9493389Abstract: The invention provides improved energy content in and shaft power recovery from off-gas from xylene oxidation reactions while at the same time minimizing wastewater treatment cost. More shaft power is produced using off-gas than is required to drive the main air compressor, even with preferred, relatively low oxidation temperatures. Simultaneously, an amount of wastewater greater than byproduct water from oxidation of xylene is kept in vapor form and treated along with off-gas pollutants in a self-sustaining (self-fueling) gas-phase thermal oxidative destruction unit. Optionally, off-gas is combined from multiple xylene oxidation reactors, comprising primary and/or secondary oxidation reactors and forming TPA and/or IPA. Optionally, air compressor condensate and caustic scrubber blowdown are used in a TPA process or as utility water, effectively eliminating normal flow of liquid wastewater effluent from a TPA plant.Type: GrantFiled: September 9, 2009Date of Patent: November 15, 2016Assignee: Grupo Petrotemex, S.A. de C.V.Inventors: Raymond Elbert Fogle, III, Ronald Buford Sheppard, Timothy Alan Upshaw, Alan George Wonders
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Patent number: 9493388Abstract: The invention provides improved energy content in and shaft power recovery from off-gas from xylene oxidation reactions while at the same time minimizing wastewater treatment cost. More shaft power is produced using off-gas than is required to drive the main air compressor, even with preferred, relatively low oxidation temperatures. Simultaneously, an amount of wastewater greater than byproduct water from oxidation of xylene is kept in vapor form and treated along with off-gas pollutants in a self-sustaining (self-fueling) gas-phase thermal oxidative destruction unit. Optionally, off-gas is combined from multiple xylene oxidation reactors, comprising primary and/or secondary oxidation reactors and forming TPA and/or IPA. Optionally, air compressor condensate and caustic scrubber blowdown are used in a TPA process or as utility water, effectively eliminating normal flow of liquid wastewater effluent from a TPA plant.Type: GrantFiled: September 9, 2009Date of Patent: November 15, 2016Assignee: Grupo Petrotemex, S.A. de C.V.Inventors: Raymond Elbert Fogle, III, Ronald Buford Sheppard, Timothy Alan Upshaw, Alan George Wonders
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Publication number: 20120202965Abstract: The invention provides improved energy content in and shaft power recovery from off-gas from xylene oxidation reactions while at the same time minimizing wastewater treatment cost. More shaft power is produced using off-gas than is required to drive the main air compressor, even with preferred, relatively low oxidation temperatures. Simultaneously, an amount of wastewater greater than byproduct water from oxidation of xylene is kept in vapor form and treated along with off-gas pollutants in a self-sustaining (self-fueling) gas-phase thermal oxidative destruction unit. Optionally, off-gas is combined from multiple xylene oxidation reactors, comprising primary and/or secondary oxidation reactors and forming TPA and/or IPA.Type: ApplicationFiled: March 30, 2012Publication date: August 9, 2012Applicant: EASTMAN CHEMICAL COMPANYInventors: Raymond Elbert Fogle, III, Ronald Buford Sheppard, Timothy Alan Upshaw, Alan George Wonders
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Patent number: 8236921Abstract: The invention provides improved energy content in and shaft power recovery from off-gas from xylene oxidation reactions while at the same time minimizing wastewater treatment cost. More shaft power is produced using off-gas than is required to drive the main air compressor, even with preferred, relatively low oxidation temperatures. Simultaneously, an amount of wastewater greater than byproduct water from oxidation of xylene is kept in vapor form and treated along with off-gas pollutants in a self-sustaining (self-fueling) gas-phase thermal oxidative destruction unit. Optionally, off-gas is combined from multiple xylene oxidation reactors, comprising primary and/or secondary oxidation reactors and forming TPA and/or IPA.Type: GrantFiled: March 30, 2012Date of Patent: August 7, 2012Assignee: Eastman Chemical CompanyInventors: Raymond Elbert Fogle, III, Ronald Buford Sheppard, Timothy Alan Upshaw, Alan George Wonders
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Patent number: 7816556Abstract: Disclosed is an optimized system for more efficiently and economically producing terephthalic acid. The system includes a multi-stage oxidative digestion system for processing an improved initial slurry from primary oxidation. The multi-stage digestion system is capable of adequately purifying the improved initial slurry without requiring significant liquor exchange between primary oxidation and oxidative digestion.Type: GrantFiled: March 1, 2006Date of Patent: October 19, 2010Assignee: Eastman Chemical CompanyInventors: Alan George Wonders, Ronald Buford Sheppard, Thomas Earl Woodruff, Martin De Boer, Raymond Elbert Fogle
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Patent number: 7772424Abstract: Disclosed is an optimized system for more efficiently and economically producing terephthalic acid. The system employs an evaporative removal step downstream of oxidative digestion. The evaporative removal step removes a portion of the liquid phase and promotes precipitation of certain aromatic impurities. By promoting precipitation of certain aromatic impurities, the amount of the precipitated impurities in the recycled solvent is advantageously reduced.Type: GrantFiled: March 1, 2006Date of Patent: August 10, 2010Assignee: Eastman Chemical CompanyInventors: Alan George Wonders, Ronald Buford Sheppard, Thomas Earl Woodruff, Martin De Boer, Raymond Elbert Fogle, Philip Edward Gibson, Kenny Randolph Parker
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Publication number: 20100113826Abstract: The invention provides improved energy content in and shaft power recovery from off-gas from xylene oxidation reactions while at the same time minimizing wastewater treatment cost. More shaft power is produced using off-gas than is required to drive the main air compressor, even with preferred, relatively low oxidation temperatures. Simultaneously, an amount of wastewater greater than byproduct water from oxidation of xylene is kept in vapor form and treated along with off-gas pollutants in a self-sustaining (self-fueling) gas-phase thermal oxidative destruction unit. Optionally, off-gas is combined from multiple xylene oxidation reactors, comprising primary and/or secondary oxidation reactors and forming TPA and/or IPA. Optionally, air compressor condensate and caustic scrubber blowdown are used in a TPA process or as utility water, effectively eliminating normal flow of liquid wastewater effluent from a TPA plant.Type: ApplicationFiled: September 9, 2009Publication date: May 6, 2010Applicant: EASTMAN CHEMICAL COMPANYInventors: Raymond Elbert Fogle, III, Ronald Buford Sheppard, Timothy Alan Upshaw, Alan George Wonders
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Publication number: 20100113825Abstract: The invention provides improved energy content in and shaft power recovery from off-gas from xylene oxidation reactions while at the same time minimizing wastewater treatment cost. More shaft power is produced using off-gas than is required to drive the main air compressor, even with preferred, relatively low oxidation temperatures. Simultaneously, an amount of wastewater greater than byproduct water from oxidation of xylene is kept in vapor form and treated along with off-gas pollutants in a self-sustaining (self-fueling) gas-phase thermal oxidative destruction unit. Optionally, off-gas is combined from multiple xylene oxidation reactors, comprising primary and/or secondary oxidation reactors and forming TPA and/or IPA. Optionally, air compressor condensate and caustic scrubber blowdown are used in a TPA process or as utility water, effectively eliminating normal flow of liquid wastewater effluent from a TPA plant.Type: ApplicationFiled: September 9, 2009Publication date: May 6, 2010Applicant: EASTMAN CHEMICAL COMPANYInventors: Raymond Elbert Fogle, III, Ronald Buford Sheppard, Timothy Alan Upshaw, Alan George Wonders
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Publication number: 20100113824Abstract: The invention provides improved energy content in and shaft power recovery from off-gas from xylene oxidation reactions while at the same time minimizing wastewater treatment cost. More shaft power is produced using off-gas than is required to drive the main air compressor, even with preferred, relatively low oxidation temperatures. Simultaneously, an amount of wastewater greater than byproduct water from oxidation of xylene is kept in vapor form and treated along with off-gas pollutants in a self-sustaining (self-fueling) gas-phase thermal oxidative destruction unit. Optionally, off-gas is combined from multiple xylene oxidation reactors, comprising primary and/or secondary oxidation reactors and forming TPA and/or IPA. Optionally, air compressor condensate and caustic scrubber blowdown are used in a TPA process or as utility water, effectively eliminating normal flow of liquid wastewater effluent from a TPA plant.Type: ApplicationFiled: September 9, 2009Publication date: May 6, 2010Applicant: EASTMAN CHEMICAL COMPANYInventors: Raymond Elbert Fogle, III, Ronald Buford Sheppard, Timothy Alan Upshaw, Alan George Wonders
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Publication number: 20100113735Abstract: The invention provides improved energy content in and shaft power recovery from off-gas from xylene oxidation reactions while at the same time minimizing wastewater treatment cost. More shaft power is produced using off-gas than is required to drive the main air compressor, even with preferred, relatively low oxidation temperatures. Simultaneously, an amount of wastewater greater than byproduct water from oxidation of xylene is kept in vapor form and treated along with off-gas pollutants in a self-sustaining (self-fueling) gas-phase thermal oxidative destruction unit. Optionally, off-gas is combined from multiple xylene oxidation reactors, comprising primary and/or secondary oxidation reactors and forming TPA and/or IPA. Optionally, air compressor condensate and caustic scrubber blowdown are used in a TPA process or as utility water, effectively eliminating normal flow of liquid wastewater effluent from a TPA plant.Type: ApplicationFiled: September 9, 2009Publication date: May 6, 2010Applicant: EASTMAN CHEMICAL COMPANYInventors: Raymond Elbert Fogle, III, Ronald Buford Sheppard, Timothy Alan Upshaw, Alan George Wonders
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Publication number: 20100087675Abstract: The invention provides improved energy content in and shaft power recovery from off-gas from xylene oxidation reactions while at the same time minimizing wastewater treatment cost. More shaft power is produced using off-gas than is required to drive the main air compressor, even with preferred, relatively low oxidation temperatures. Simultaneously, an amount of wastewater greater than byproduct water from oxidation of xylene is kept in vapor form and treated along with off-gas pollutants in a self-sustaining (self-fueling) gas-phase thermal oxidative destruction unit. Optionally, off-gas is combined from multiple xylene oxidation reactors, comprising primary and/or secondary oxidation reactors and forming TPA and/or IPA. Optionally, air compressor condensate and caustic scrubber blowdown are used in a TPA process or as utility water, effectively eliminating normal flow of liquid wastewater effluent from a TPA plant.Type: ApplicationFiled: September 9, 2009Publication date: April 8, 2010Applicant: EASTMAN CHEMICAL COMPANYInventors: Raymond Elbert Fogle, III, Ronald Buford Sheppard, Timothy Alan Upshaw, Alan George Wonders
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Patent number: 7501537Abstract: Disclosed is an optimized system for more efficiently and economically producing terephthalic acid. The system minimizes or eliminates the need for liquor exchange upstream of oxidative digestion and/or upstream of substantial cooling of the TPA-containing slurry.Type: GrantFiled: March 1, 2006Date of Patent: March 10, 2009Assignee: Eastman Chemical CompanyInventors: Alan George Wonders, Ronald Buford Sheppard, Martin De Boer, Raymond Elbert Fogle, Marcel de Vreede
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Patent number: 7326808Abstract: Disclosed is an optimized system for more efficiently and economically producing terephthalic acid. A solvent purification system is employed to remove of at least one aromatic impurity present in a solvent purification feed. At least about 20 weight percent of the solvent purification feed originates from a cooled, post-digestion, TPA-containing slurry.Type: GrantFiled: March 1, 2006Date of Patent: February 5, 2008Assignee: Eastman Chemical CompanyInventors: Alan George Wonders, Ronald Buford Sheppard, Martin De Boer, Lee Reynolds Partin, Raymond Elbert Fogle
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Publication number: 20070244340Abstract: Disclosed is an optimized system for more efficiently and economically producing terephthalic acid. The system employs an evaporative removal step downstream of oxidative digestion. The evaporative removal step removes a portion of the liquid phase and promotes precipitation of certain aromatic impurities. By promoting precipitation of certain aromatic impurities, the amount of the precipitated impurities in the recycled solvent is advantageously reduced.Type: ApplicationFiled: March 1, 2006Publication date: October 18, 2007Inventors: Alan George Wonders, Ronald Buford Sheppard, Thomas Earl Woodruff, Martin De Boer, Raymond Elbert Fogle, Philip Edward Gibson, Kenny Randolph Parker