Patents by Inventor Charles Linford Schaffer
Charles Linford Schaffer 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: 9090839Abstract: A feed gas comprising CO2, H2S and H2 is treated to produce an H2-enriched product and an H2S-lean, CO2 product. The feed gas is separated to provide the H2-enriched product and a stream of sour gas. The stream of sour gas is divided into two parts, one of which is processed in an H2S removal system to form one or more streams of sweetened gas, and the other of which bypasses the H2S removal system, the stream(s) of sweetened gas and the sour gas bypassing the H2S removal system then being recombined to form the H2S-lean, CO2 product gas. The division of the sour gas between being sent to and bypassing the H2S removal system is adjusted responsive to changes in the H2S content of the sour gas, so as to dampen or cancel the effects of said changes on the H2S content of the H2S-lean, CO2 product gas.Type: GrantFiled: July 30, 2013Date of Patent: July 28, 2015Assignee: Air Products and Chemicals, Inc.Inventors: Charles Linford Schaffer, Andrew David Wright, Kevin Boyle Fogash, Jeffrey William Kloosterman, Jeffrey Raymond Hufton
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Publication number: 20130315794Abstract: A feed gas comprising CO2, H2S and H2 is treated to produce an H2-enriched product and an H2S-lean, CO2 product. The feed gas is separated to provide the H2-enriched product and a stream of sour gas. The stream of sour gas is divided into two parts, one of which is processed in an H2S removal system to form one or more streams of sweetened gas, and the other of which bypasses the H2S removal system, the stream(s) of sweetened gas and the sour gas bypassing the H2S removal system then being recombined to form the H2S-lean, CO2 product gas. The division of the sour gas between being sent to and bypassing the H2S removal system is adjusted responsive to changes in the H2S content of the sour gas, so as to dampen or cancel the effects of said changes on the H2S content of the H2S-lean, CO2 product gas.Type: ApplicationFiled: July 30, 2013Publication date: November 28, 2013Applicant: AIR PRODUCTS AND CHEMICALS, INC.Inventors: Charles Linford Schaffer, Andrew David Wright, Kevin Boyle Fogash, Jeffrey William Kloosterman, Jeffrey Raymond Hufton
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Patent number: 8518356Abstract: A feed gas comprising CO2, H2S and H2 is treated to produce an H2-enriched product and an H2S-lean, CO2 product. The feed gas is separated to provide the H2-enriched product and a stream of sour gas. The stream of sour gas is divided into two parts, one of which is processed in an H2S removal system to form one or more streams of sweetened gas, and the other of which bypasses the H2S removal system, the stream(s) of sweetened gas and the sour gas bypassing the H2S removal system then being recombined to form the H2S-lean, CO2 product gas. The division of the sour gas between being sent to and bypassing the H2S removal system is adjusted responsive to changes in the H2S content of the sour gas, so as to dampen or cancel the effects of said changes on the H2S content of the H2S-lean, CO2 product gas.Type: GrantFiled: July 27, 2010Date of Patent: August 27, 2013Assignee: Air Products and Chemicals, Inc.Inventors: Charles Linford Schaffer, Andrew David Wright, Kevin Boyle Fogash, Jeffrey William Kloosterman, Jeffrey Raymond Hufton
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Patent number: 8268044Abstract: A feed stream, comprising hydrogen sulphide (H2S), carbon dioxide (CO2), hydrogen (H2) and, optionally, carbon monoxide (CO), is separated into at least a CO2 product stream and an H2 or H2 and CO product stream. The stream is separated using a pressure swing adsorption system, an H2S removal system and a further separation system, which systems are used in series to separate the stream. The method has particular application in the separation of a sour (i.e. sulphur containing) syngas, as for example produced from the gasification of solid or heavy liquid carbonaceous feedstock.Type: GrantFiled: July 13, 2010Date of Patent: September 18, 2012Assignee: Air Products and Chemicals, Inc.Inventors: Andrew David Wright, Vincent White, Kevin Boyle Fogash, Jeffrey William Kloosterman, Jeffrey Raymond Hufton, Charles Linford Schaffer
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Patent number: 8206669Abstract: A feed gas comprising CO2, H2S and H2 is treated to produce an H2-enriched product and a CO2 product. The feed gas is separated by pressure swing adsorption to provide a stream of the H2-enriched product, and two streams of sour gas depleted in H2 and enriched in H2S and CO2 relative to the feed gas. One of the streams of sour gas is processed in an H2S to elemental sulfur conversion system, in which H2S in the sour gas is converted to elemental sulfur order to obtain a stream of sweetened gas, from which the CO2 product is formed. The other of said streams of sour gas is processed in an oxidation system, in which H2S in the sour gas is oxidized to SOx(SO2 and SO3) which is introduced into the H2S to elemental sulfur conversion system.Type: GrantFiled: July 27, 2010Date of Patent: June 26, 2012Assignee: Air Products and Chemicals, Inc.Inventors: Charles Linford Schaffer, Andrew David Wright, Kevin Boyle Fogash, Jeffrey William Kloosterman, Vincent White
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Publication number: 20120027655Abstract: A feed gas comprising CO2, H2S and H2 is treated to produce an H2-enriched product and an H2S-lean, CO2 product. The feed gas is separated to provide the H2-enriched product and a stream of sour gas. The stream of sour gas is divided into two parts, one of which is processed in an H2S removal system to form one or more streams of sweetened gas, and the other of which bypasses the H2S removal system, the stream(s) of sweetened gas and the sour gas bypassing the H2S removal system then being recombined to form the H2S-lean, CO2 product gas. The division of the sour gas between being sent to and bypassing the H2S removal system is adjusted responsive to changes in the H2S content of the sour gas, so as to dampen or cancel the effects of said changes on the H2S content of the H2S-lean, CO2 product gas.Type: ApplicationFiled: July 27, 2010Publication date: February 2, 2012Applicant: AIR PRODUCTS AND CHEMICALS, INC.Inventors: Charles Linford Schaffer, Andrew David Wright, Kevin Boyle Fogash, Jeffrey William Kloosterman, Jeffrey Raymond Hufton
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Publication number: 20120027656Abstract: A feed gas comprising CO2, H2S and H2 is treated to produce an H2-enriched product and a CO2 product. The feed gas is separated by pressure swing adsorption to provide a stream of the H2-enriched product, and two streams of sour gas depleted in H2 and enriched in H2S and CO2 relative to the feed gas. One of the streams of sour gas is processed in an H2S to elemental sulfur conversion system, in which H2S in the sour gas is converted to elemental sulfur order to obtain a stream of sweetened gas, from which the CO2 product is formed. The other of said streams of sour gas is processed in an oxidation system, in which H2S in the sour gas is oxidized to SOx (SO2 and SO3), the SO2 from the oxidation effluent or sulfuric/sulfurous acid obtained therefrom being introduced into the H2S to elemental sulfur conversion system as a reagent.Type: ApplicationFiled: July 27, 2010Publication date: February 2, 2012Applicant: AIR PRODUCTS AND CHEMICALS, INC.Inventors: Charles Linford Schaffer, Andrew David Wright, Kevin Boyle Fogash, Jeffrey William Kloosterman, Vincent White
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Publication number: 20120012000Abstract: A feed stream, comprising hydrogen sulphide (H2S), carbon dioxide (CO2), hydrogen (H2) and, optionally, carbon monoxide (CO), is separated into at least a CO2 product stream and an H2 or H2 and CO product stream. The stream is separated using a pressure swing adsorption system, an H2S removal system and a further separation system, which systems are used in series to separate the stream. The method has particular application in the separation of a sour (i.e. sulphur containing) syngas, as for example produced from the gasification of solid or heavy liquid carbonaceous feedstock.Type: ApplicationFiled: July 13, 2010Publication date: January 19, 2012Applicant: AIR PRODUCTS AND CHEMICALS, INC.Inventors: Andrew David Wright, Vincent White, Kevin Boyle Fogash, Jeffrey William Kloosterman, Jeffrey Raymond Hufton, Charles Linford Schaffer