Patents by Inventor Stephen Paul DiMartino, Sr.
Stephen Paul DiMartino, Sr. 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: 8137422Abstract: A process for producing a hydrogen-containing product gas with reduced carbon dioxide emissions compared to conventional hydrogen production processes. A hydrocarbon and steam are reformed in a reformer and the resulting reformate stream is shifted in one or more shift reactors. The shifted mixture is scrubbed to remove carbon dioxide to form a carbon dioxide-depleted stream. The carbon dioxide-depleted stream is separated to form a hydrogen-containing product gas and a by-product gas. A portion of the hydrogen containing product gas is used as a fuel in the reformer and a portion of the by-product gas is recycled back into the process. The process may optionally include reforming in a prereformer and/or an oxygen secondary reformer.Type: GrantFiled: June 3, 2009Date of Patent: March 20, 2012Assignee: Air Products and Chemicals, Inc.Inventors: William Robert Licht, Stephen Paul DiMartino, Sr., Eugene S. Genkin, Xianming Jimmy Li, Bryan Clair Hoke, Jr.
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Patent number: 7850944Abstract: A method for generating hydrogen and/or synthesis gas in a production facility where little or no export steam is produced. Most or all of the high pressure steam produced from the waste heat from the process is used in the steam-hydrocarbon reformer with little or no steam export. The method uses oxygen enhanced combustion which may involve oxygen lancing and/or oxygen-enrichment. Plant efficiencies using the method and prior art-type methods are compared.Type: GrantFiled: April 11, 2008Date of Patent: December 14, 2010Assignee: Air Products and Chemicals, Inc.Inventors: Eugene S. Genkin, Stephen Paul DiMartino, Sr., Miguel Rafael Alvarez, David Anthony Zagnoli, Christopher Francis Harris
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Publication number: 20100310949Abstract: A process for producing a hydrogen-containing product gas with reduced carbon dioxide emissions compared to conventional hydrogen production processes. A hydrocarbon and steam are reformed in a reformer and the resulting reformate stream is shifted in one or more shift reactors. The shifted mixture is scrubbed to remove carbon dioxide to form a carbon dioxide-depleted stream. The carbon dioxide-depleted stream is separated to form a hydrogen-containing product gas and a by-product gas. A portion of the hydrogen containing product gas is used as a fuel in the reformer and a portion of the by-product gas is recycled back into the process. The process may optionally include reforming in a prereformer and/or an oxygen secondary reformer.Type: ApplicationFiled: June 3, 2009Publication date: December 9, 2010Applicant: AIR PRODUCTS AND CHEMICALS, INC.Inventors: William Robert Licht, Stephen Paul DiMartino, SR., Eugene S. Genkin, Xianming Jimmy Li, Bryan Clair Hoke, JR.
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Patent number: 7837973Abstract: A hydrogen production method that integrates a catalytic steam reformer and a gasifier. Hydrogen is generated in a catalytic steam reformer at a high production rate or design capacity. The catalytic steam reformer is then turned down to a fraction of design capacity while a gasifier produces the needed hydrogen. During the turned down state of the catalytic steam reformer, more of a hydrogen-containing stream formed from gasifier effluent is fed to the catalytic steam reformer as a feed thereby reducing the flow rate of feedstock required for the catalytic steam reformer in the turned down state. Optionally, hydrogen mixtures from the catalytic steam reformer and gasifier are fed to one or more adsorbers for hydrogen purification and adsorber effluent is fired as fuel in the steam reformer furnace to provide a majority of the heat needed for the reforming reaction.Type: GrantFiled: May 8, 2007Date of Patent: November 23, 2010Assignee: Air Products and Chemicals, Inc.Inventors: Gregory David Snyder, Stephen Paul DiMartino, Sr., David Anthony Zagnoli, James Joseph Stango
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Patent number: 7686611Abstract: The present invention relates to a method and furnace for generating straightened flames in a steam methane reformer or ethylene cracking furnace where fuel-staged burners are used. Fuel staging may be used for reducing NOx emissions. Criteria for generating straightened flames are provided. These criteria relate to oxidant conduit geometry and furnace geometry. Techniques for modifying the furnace and/or burners to achieve these criteria are also provided.Type: GrantFiled: November 3, 2005Date of Patent: March 30, 2010Assignee: Air Products and Chemicals, Inc.Inventors: Mahendra Ladharam Joshi, Xianming Jimmy Li, William Robert Licht, Aleksandar Georgi Slavejkov, Stephen Paul DiMartino, Sr.
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Publication number: 20090232729Abstract: A method for generating hydrogen and/or synthesis gas in a production facility where little or no export steam is produced. Most or all of the high pressure steam produced from the waste heat from the process is used in the steam-hydrocarbon reformer with little or no steam export. The method uses oxygen enhanced combustion which may involve oxygen lancing and/or oxygen-enrichment. Plant efficiencies using the method and prior art-type methods are compared.Type: ApplicationFiled: April 11, 2008Publication date: September 17, 2009Applicant: AIR PRODUCTS AND CHEMICALS, INC.Inventors: Eugene S. Genkin, Stephen Paul DiMartino, SR., Miguel Rafael Alvarez, David Anthony Zagnoli, Christopher Francis Harris
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Publication number: 20080279763Abstract: A hydrogen production method that integrates a catalytic steam reformer and a gasifier. Hydrogen is generated in a catalytic steam reformer at a high production rate or design capacity. The catalytic steam reformer is then turned down to a fraction of design capacity while a gasifier produces the needed hydrogen. During the turned down state of the catalytic steam reformer, more of a hydrogen-containing stream formed from gasifier effluent is fed to the catalytic steam reformer as a feed thereby reducing the flow rate of feedstock required for the catalytic steam reformer in the turned down state. Optionally, hydrogen mixtures from the catalytic steam reformer and gasifier are fed to one or more adsorbers for hydrogen purification and adsorber effluent is fired as fuel in the steam reformer furnace to provide a majority of the heat needed for the reforming reaction.Type: ApplicationFiled: May 8, 2007Publication date: November 13, 2008Applicant: AIR PRODUCTS AND CHEMICALS, INC.Inventors: Gregory David Snyder, Stephen Paul DiMartino, SR., David Anthony Zagnoli, James Joseph Stango
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Patent number: 6796369Abstract: An apparatus and a method for inhibiting metal dusting corrosion of a tubesheet inside a shell-and-tube heat exchanger having at least one exit nozzle for transmitting at least one process fluid from the shell-and-tube heat exchanger include and use: an isolation baffle disposed inside the shell-and-tube heat exchanger at a location between a first exit nozzle and the tubesheet, whereby an isolated space exists between the tubesheet and the isolation baffle; and a means for purging the isolated space with a purging fluid.Type: GrantFiled: April 4, 2003Date of Patent: September 28, 2004Assignee: Air Products and Chemicals, Inc.Inventor: Stephen Paul DiMartino, Sr.
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Patent number: 5795148Abstract: Method and apparatus for maintaining even heat distribution to each of the tubes contained in a down-fired induced draft furnace by eliminating external atmosphere disturbances such as wind from influencing furnace operation. The top of the furnace is isolated from receiving ambient air except through a central path which controls both rate and direction of air flow.Type: GrantFiled: March 12, 1996Date of Patent: August 18, 1998Assignee: Air Products and Chemicals, Inc.Inventors: Stephen Paul DiMartino, Sr., Peter George Goldstone, David Brian Letch, Nasim Hassan Malik