Patents by Inventor David Hon
David Hon 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: 8366439Abstract: A method for combusting oil from an oil-containing layer floating on water as from an oil spill or well leak. In the method, an oxygen-containing gas is passed through a conduit, the oxygen-containing gas from the conduit is introduced proximate the oil-containing layer floating on water, and oil from the oil-containing layer is combusted with the oxygen-containing gas in the presence of a flame. The oxygen-containing gas is introduced with an oxygen molar flow rate sufficient to decrease the opacity of a smoke plume from the combusting oil.Type: GrantFiled: August 10, 2010Date of Patent: February 5, 2013Assignee: Air Products and Chemicals, Inc.Inventors: Paul M. Ashline, David Hon Sing Ying, Tunc Goruney, Xianming Jimmy Li, Leighta Maureen Johnson
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Publication number: 20120040296Abstract: A method for combusting oil from an oil-containing layer floating on water as from an oil spill or well leak. In the method, an oxygen-containing gas is passed through a conduit, the oxygen-containing gas from the conduit is introduced proximate the oil-containing layer floating on water, and oil from the oil-containing layer is combusted with the oxygen-containing gas in the presence of a flame. The oxygen-containing gas is introduced with an oxygen molar flow rate sufficient to decrease the opacity of a smoke plume from the combusting oil.Type: ApplicationFiled: August 10, 2010Publication date: February 16, 2012Applicant: AIR PRODUCTS AND CHEMICALS, INC.Inventors: Paul M. Ashline, David Hon Sing Ying, Tunc Goruney, Xianming Jimmy Li, Leighta Maureen Johnson
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Patent number: 7510696Abstract: A method and apparatus for the production of hydrogen-rich gas are provided. The method and apparatus prevent over-reduction of iron oxide-based shift catalyst by introducing an oxidative stream along with a carbon monoxide containing gaseous feed stream from a catalytic steam reformer to the catalyst bed region and thereby limits structural deterioration of the catalyst. Various sources may provide the oxidative stream including a shift catalyst bed region and a selective oxidation catalyst region.Type: GrantFiled: May 5, 2005Date of Patent: March 31, 2009Assignee: Air Products and Chemicals, Inc.Inventors: Blaine Edward Herb, Shoou-I Wang, Xiang-Dong Peng, William Carl Rooney, Kevin Boyle Fogash, David Hon Sing Ying
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Patent number: 7481095Abstract: A system for detecting fine liquid, e.g., oil, particles in a gas system having a conduit through which a gas, e.g., hydrogen, air, etc., will flow. The detection system includes a monitor including a high sensitivity photometric sensor, a data acquisition unit and flow and pressure control components to control the pressure and rate of flow of the gas to the monitor. The detection system is arranged to detect the presence of fine liquid particles the gas passing through the conduit and to provide an alert signal representative of the mass count of such particles in response thereto.Type: GrantFiled: July 27, 2006Date of Patent: January 27, 2009Assignee: Air Products and Chemicals, Inc.Inventors: Frank Kenneth Schweighardt, David Hon Sing Ying, Dean Anthony Chin-Fatt, Kevin Boyle Fogash, Charles Randall Kayhart
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Patent number: 7354562Abstract: A process for producing a high temperature COx-lean product gas from a high temperature COx-containing feed gas, includes: providing a sorption enhanced reactor containing a first adsorbent, a shift catalyst and a second adsorbent; feeding into the reactor a feed gas containing H2, H2O, CO and CO2; contacting the feed gas with the first adsorbent to provide a CO2 depleted feed gas; contacting the CO2 depleted feed gas with the shift catalyst to form a product mixture comprising CO2 and H2; and contacting the product mixture with a mixture of second adsorbent and shift catalyst to produce the product gas, which contains at least 50 vol. % H2, and less than 5 combined vol. % of CO2 and CO. The adsorbent is a high temperature adsorbent for a Sorption Enhanced Reaction process, such as K2CO3 promoted hydrotalcites, modified double-layered hydroxides, spinels, modified spinels, and magnesium oxides.Type: GrantFiled: October 25, 2002Date of Patent: April 8, 2008Assignee: Air Products and Chemicals, Inc.Inventors: David Hon Sing Ying, Shankar Nataraj, Jeffrey Raymond Hufton, Jianguo Xu, Rodney John Allam, Sarah Jane Dulley
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Patent number: 7343781Abstract: A system for detecting fine liquid, e.g., oil, particles in a gas system having a high pressure compressor and at least two gas handling devices, e.g., a coalescer and at least one adsorber. The detection system uses plural sensors and a monitor unit to detect the presence of such fine liquid particles in various portions of the gas system and to provide alert signals in response thereto. The alert signals can be used by associated valves to control the gas system.Type: GrantFiled: October 13, 2005Date of Patent: March 18, 2008Assignee: Air Products and Chemicals, Inc.Inventors: Frank Kenneth Schweighardt, David Hon Sing Ying, Dean Anthony Chin-Fatt, Kevin Boyle Fogash, Charles Randall Kayhart
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Patent number: 7297169Abstract: The present invention is an apparatus arranged to maximize heat utilization for a hydrocarbon steam reforming process to produce synthesis gas. The apparatus comprises a refractory lined vessel with partition walls that divide the inside of the vessel into (1) a combustion chamber(s) containing one or more burners, and (2) convection chambers used as a means to remove combustion products from the combustion chamber through one or more openings at the opposite end of the burner end. The combustion chamber contains one or more reformer tubes in which a mixed-feed of hydrocarbon and steam flow co-current with combustion products and receive direct radiant heat from the combustion flame through the tube wall. The convection chambers contain a tube-in-tube device filled with catalyst in the annuli.Type: GrantFiled: December 24, 2003Date of Patent: November 20, 2007Assignee: Air Products and Chemicals, Inc.Inventors: Hoanh Nang Pham, David Hon Sing Ying, Shoou-I Wang, Scott David Madara, Joel Charles MacMurray
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Publication number: 20060246154Abstract: Higher concentrations of oak bark ash extract, i.e., greater than 20% by weight, are useful for the treatment of skin cancers. Lower concentrations of oak bark extract possess additional therapeutic properties not heretofore recognized. For example, preparations containing 40-80% oak bark extract are useful in the treatment of acute cancerous skin ulcers. In addition, synthetic mixtures containing potassium ions, zinc ions, calcium ions provide many of the same advantageous properties of oak bark extract. The inclusion of rubidium ions and sulfur is also advantageous for some applications.Type: ApplicationFiled: June 30, 2006Publication date: November 2, 2006Inventors: David Hon, R. Stanley
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Publication number: 20050100620Abstract: Higher concentrations of oak bark ash extract, i.e., greater than 20% by weight, are useful for the treatment of skin cancers. Lower concentrations of oak bark extract possess additional therapeutic properties not heretofore recognized. For example, preparations containing 40-80% oak bark extract are useful. in the treatment of acute cancerous skin ulcers. In addition, synthetic mixtures containing potassium ions, zinc ions, calcium ions provide many of the same advantageous properties of oak bark extract. The inclusion of rubidium ions and sulfur is also advantageous for some applications.Type: ApplicationFiled: October 1, 2003Publication date: May 12, 2005Inventors: David Hon, R. Stanley
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Patent number: 6793700Abstract: An apparatus for a hydrocarbon reforming process includes a combustion chamber, a convection chamber in fluid communication with the combustion chamber, at least one burner disposed in the combustion chamber, a reaction chamber, a means for flowing a first mixed-feed through a first part of the reaction chamber, and a means for flowing a second mixed-feed through an annular portion of a second part of the reaction chamber, the second part being a tube-in-tube in fluid communication with the first part. The burner(s) generates a flow of a flue gas having a sensible heat from the combustion chamber to the convection chamber. The flow of the flue gas in the convection chamber is counter-currently with the flow of the second mixed-feed.Type: GrantFiled: January 14, 2002Date of Patent: September 21, 2004Assignee: Air Products and Chemicals, Inc.Inventors: Hoanh Nang Pham, Shoou-I Wang, David Hon Sing Ying, Kevin Boyle Fogash
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Publication number: 20040134127Abstract: The present invention is an apparatus arranged to maximize heat utilization for a hydrocarbon steam reforming process to produce synthesis gas. The apparatus comprises a refractory lined vessel with partition walls that divide the inside of the vessel into (1) a combustion chamber(s) containing one or more burners, and (2) convection chambers used as a means to remove combustion products from the combustion chamber through one or more openings at the opposite end of the burner end. The combustion chamber contains one or more reformer tubes in which a mixed-feed of hydrocarbon and steam flow co-current with combustion products and receive direct radiant heat from the combustion flame through the tube wall. The convection chambers contain a tube-in-tube device filled with catalyst in the annuli.Type: ApplicationFiled: December 24, 2003Publication date: July 15, 2004Inventors: Hoanh Nang Pham, David Hon Sing Ying, Shoou-l Wang, Scott David Madara, Joel Charles MacMurray
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Publication number: 20040081614Abstract: A process for producing a high temperature COx-lean product gas from a high temperature COx-containing feed gas, includes: providing a sorption enhanced reactor containing a first adsorbent, a shift catalyst and a second adsorbent; feeding into the reactor a feed gas containing H2, H2O, CO and CO2; contacting the feed gas with the first adsorbent to provide a CO2 depleted feed gas; contacting the CO2 depleted feed gas with the shift catalyst to form a product mixture comprising CO2 and H2; and contacting the product mixture with a mixture of second adsorbent and shift catalyst to produce the product gas, which contains at least 50 vol. % H2, and less than 5 combined vol. % of CO2 and CO. The adsorbent is a high temperature adsorbent for a Sorption Enhanced Reaction process, such as K2CO3 promoted hydrotalcites, modified double-layered hydroxides, spinels, modified spinels, and magnesium oxides.Type: ApplicationFiled: October 25, 2002Publication date: April 29, 2004Inventors: David Hon Sing Ying, Shankar Nataraj, Jeffrey Raymond Hufton, Jianguo Xu, Rodney John Allam, Sarah Jane Dulley
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Publication number: 20030131533Abstract: An apparatus for a hydrocarbon reforming process includes a combustion chamber, a convection chamber in fluid communication with the combustion chamber, at least one burner disposed in the combustion chamber, a reaction chamber, a means for flowing a first mixed-feed through a first part of the reaction chamber, and a means for flowing a second mixed-feed through an annular portion of a second part of the reaction chamber, the second part being a tube-in-tube in fluid communication with the first part. The burner(s) generates a flow of a flue has having a sensible heat from the combustion chamber to the convection chamber. The flow of the flue has in the convection chamber is counter-currently with the flow of the second mixed-feed.Type: ApplicationFiled: January 14, 2002Publication date: July 17, 2003Inventors: Hoanh Nang Pham, Shoou-I Wang, David Hon Sing Ying, Kevin Boyle Fogash
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Publication number: 20020110505Abstract: An apparatus for heating a fluid in a process having a process heat requirement includes a shell, at least one tube having a design temperature inside the shell, a plurality of burners adjacent the inner wall of the shell, and transfer means whereby flue gas flows from a first interior region to a second interior region of the shell. A first portion of the tube is in the first interior region and a second portion of the tube is in the second interior region. The first and second portions of the tube are adapted to contain a flow of the fluid. The burners produce the flue gas in the first interior region and a variable heat flux approximating the process heat requirement and simultaneously maximizing the heat flux to the first portion of the tube while maintaining substantially all of the first portion of the tube at the design temperature.Type: ApplicationFiled: December 20, 2000Publication date: August 15, 2002Inventors: Shoou-I Wang, David Hon Sing Ying, Hoanh Nang Pham, Blaine Edward Herb, Xianming Li
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Patent number: 4360345Abstract: A computer controlled interactive instruction system for teaching an individual comprising a peripheral having at least one sensor for producing a signal representing a function which has been or is to be manually performed by the individual, a first device for storing a sequence of signals representing instructions relating to the correct manner of performing the function, a first display coupled to the storing device for displaying the instructions, a second device for storing video and associated audio signals representing both pictorial and oral representations of the correct manner of performing the function, a second display for displaying the pictorial representation, and a computer coupled to the peripheral, the first and second storage devices and the first and second displays for causing an ordered sequence of the instruction signals in the first signal storage device to be displayed by the first display whereby the individual may learn to recognize and to perform the function, for receiving the sigType: GrantFiled: July 14, 1980Date of Patent: November 23, 1982Assignee: American Heart Association, Inc.Inventor: David Hon