Patents by Inventor Minquan Cheng
Minquan Cheng 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: 8869890Abstract: A method and system for processing produced fluids from a subterranean reservoir is disclosed. The system comprises: (a) a separator for separating produced fluids from a subterranean reservoir into associated gases, water and crude oil, (b) a membrane which receives at least a portion of the associated gases containing the hydrogen sulfide and separates the gas into a permeate stream enriched in hydrogen sulfide and carbon dioxide and a retentate stream depleted in hydrogen sulfide and carbon dioxide; (c) an amine unit for removing carbon dioxide and hydrogen sulfide from the retentate stream; and (d) a sour gas injection unit for injecting at the permeate stream in an underground formation.Type: GrantFiled: December 20, 2011Date of Patent: October 28, 2014Assignee: Chevron U.S.A. Inc.Inventors: Daniel Chinn, Jen Kai Chen, James Ong, Minquan Cheng, Oluwasijibomi O. Okeowo
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Patent number: 8258195Abstract: A method is disclosed for converting syngas to Fischer-Tropsch (F-T) hydrocarbon products. A synthesis gas including carbon monoxide and hydrogen gas is provided to a F-T reactor. Also, acetylene is supplied to the F-T reactor. The ratio of the volume of acetylene to the volume of synthesis gas is at least 0.01. The synthesis gas and acetylene are reacted under suitable reaction conditions and in the presence of a catalyst to produce F-T hydrocarbon products. The F-T hydrocarbon products are then recovered from the reactor. The synthesis gas and acetylene may be provided in a combined feed stream or introduced separately into the reactor. The acetylene enhanced syngas conversion in a F-T reactor results in the synthesis of F-T products which have a tighter distribution of intermediate length carbon products than do F-T products synthesized according to conventional methods.Type: GrantFiled: March 15, 2012Date of Patent: September 4, 2012Assignees: Chevron U.S.A. Inc., Commonwealth Scientific and Industrial Research OrganisationInventors: Charles L. Kibby, Minquan Cheng, Yun Lei, David Lawrence Trimm, William L. Schinski
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Publication number: 20120172459Abstract: A method is disclosed for converting syngas to Fischer-Tropsch (F-T) hydrocarbon products. A synthesis gas including carbon monoxide and hydrogen gas is provided to a F-T reactor. Also, acetylene is supplied to the F-T reactor. The ratio of the volume of acetylene to the volume of synthesis gas is at least 0.01. The synthesis gas and acetylene are reacted under suitable reaction conditions and in the presence of a catalyst to produce F-T hydrocarbon products. The F-T hydrocarbon products are then recovered from the reactor. The synthesis gas and acetylene may be provided in a combined feed stream or introduced separately into the reactor. The acetylene enhanced syngas conversion in a F-T reactor results in the synthesis of F-T products which have a tighter distribution of intermediate length carbon products than do F-T products synthesized according to conventional methods.Type: ApplicationFiled: March 15, 2012Publication date: July 5, 2012Applicants: Commonwealth Scientific and Industrial Research Organisation, Chevron U.S.A. Inc.Inventors: Charles L. Kibby, Minquan Cheng, Yun Lei, David Lawrence Trimm, William L. Schinski
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Publication number: 20120168154Abstract: A method and system for processing produced fluids from a subterranean reservoir is disclosed. The system comprises: (a) a separator for separating produced fluids from a subterranean reservoir into associated gases, water and crude oil, (b) a membrane which receives at least a portion of the associated gases containing the hydrogen sulfide and separates the gas into a permeate stream enriched in hydrogen sulfide and carbon dioxide and a retentate stream depleted in hydrogen sulfide and carbon dioxide; (c) an amine unit for removing carbon dioxide and hydrogen sulfide from the retentate stream; and (d) a sour gas injection unit for injecting at the permeate stream in an underground formation.Type: ApplicationFiled: December 20, 2011Publication date: July 5, 2012Applicant: Chevron U.S.A. Inc.Inventors: Daniel Chinn, Jen Kai Chen, James Ong, Minquan Cheng, Oluwasijibomi O. Okeowo
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Patent number: 8163808Abstract: A method is disclosed for converting syngas to Fischer-Tropsch (F-T) hydrocarbon products. A synthesis gas including carbon monoxide and hydrogen gas is provided to a F-T reactor. Also, acetylene is supplied to the F-T reactor. The ratio of the volume of acetylene to the volume of synthesis gas is at least 0.01. The synthesis gas and acetylene are reacted under suitable reaction conditions and in the presence of a catalyst to produce F-T hydrocarbon products. The F-T hydrocarbon products are then recovered from the reactor. The synthesis gas and acetylene may be provided in a combined feed stream or introduced separately into the reactor. The acetylene enhanced syngas conversion in a F-T reactor results in the synthesis of F-T products which have a tighter distribution of intermediate length carbon products than do F-T products synthesized according to conventional methods.Type: GrantFiled: December 23, 2008Date of Patent: April 24, 2012Assignees: Chevron U.S.A. Inc., Commonwealth Scientific and Industrial Research OrganisationInventors: Charles L. Kibby, Minquan Cheng, Yun Lei, David Lawrence Trimm, William L. Schinski
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Patent number: 7678958Abstract: This invention is directed to a method of removing dimethyl ether from an olefin stream. The method includes distilling the olefin stream so that the dimethyl ether is separated out of the olefin stream with propane. The olefin stream can then be further distilled to provide a polymer grade ethylene stream and a polymer grade propylene stream, with each stream containing not greater than about 10 wppm dimethyl ether.Type: GrantFiled: September 30, 2002Date of Patent: March 16, 2010Assignee: ExxonMobil Chemical Patents IncInventors: Minquan Cheng, Jeffrey J. Phillips, Michael Peter Nicoletti, David Ritchie Lumgair, Jr., John Richard Shutt, Jeffrey Alan Kabin, Wilfried Borgmann, Josef Kunkel, Helmut Fritz, Roland Walzi, Gerhard Lauermann, Klaus Muller
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Publication number: 20090170965Abstract: A method is disclosed for converting syngas to Fischer-Tropsch (F-T) hydrocarbon products. A synthesis gas including carbon monoxide and hydrogen gas is provided to a F-T reactor. Also, acetylene is supplied to the F-T reactor. The ratio of the volume of acetylene to the volume of synthesis gas is at least 0.01. The synthesis gas and acetylene are reacted under suitable reaction conditions and in the presence of a catalyst to produce F-T hydrocarbon products. The F-T hydrocarbon products are then recovered from the reactor. The synthesis gas and acetylene may be provided in a combined feed stream or introduced separately into the reactor. The acetylene enhanced syngas conversion in a F-T reactor results in the synthesis of F-T products which have a tighter distribution of intermediate length carbon products than do F-T products synthesized according to conventional methods.Type: ApplicationFiled: December 23, 2008Publication date: July 2, 2009Inventors: Charles Leonard Kibby, Minquan Cheng
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Patent number: 7244501Abstract: A composite sheet material that includes at least one porous core layer including a thermoplastic material and from about 20 weight percent to about 80 weight percent fibers based on a total weight of the porous core layer, and at least one skin covering a surface of the core layer. The skin includes at least one of a thermoplastic film, a fiber based scrim, a non-woven fabric, and a woven fabric.Type: GrantFiled: March 26, 2004Date of Patent: July 17, 2007Assignees: Azdel, Inc., General Electric CompanyInventors: Venkatkrishna Raghavendran, Daniel Scott Woodman, Erich Otto Teutsch, Ralph Robert Buoniconti, Scott Michael Davis, Paul Anthony Bristow, Minquan Cheng, Daniel Wardell Sowle, Benny Ezekiel David
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Publication number: 20060111601Abstract: This invention is directed to a method of removing dimethyl ether from an olefin stream. The method includes distilling the olefin stream so that the dimethyl ether is separated out of the olefin stream with propane. The olefin stream can then be further distilled to provide a polymer grade ethylene stream and a polymer grade propylene stream, with each stream containing not greater than about 10 wppm dimethyl ether.Type: ApplicationFiled: September 30, 2002Publication date: May 25, 2006Inventors: Minquan Cheng, Jeffrey Phillips, Michael Nicoletti, David Lumgard Jr., John Shutt, Jeffrey Kabin, Wilfried Borgmann, Josef Kunkel, Helmut Fritz, Roland Walzi, Gerhard Lauermann, Klaus Muller
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Publication number: 20050222474Abstract: Disclosed is a method of recovering oxygenates from an olefin production process and oxygenate compositions that can be recovered from an olefin production process. The recovered oxygenate compositions comprise a mixture of alcohols, ethers, ketones, and/or aldehydes.Type: ApplicationFiled: May 25, 2005Publication date: October 6, 2005Inventors: Minquan Cheng, Michael Nicoletti
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Publication number: 20050215698Abstract: A composite sheet material that includes at least one porous core layer including a thermoplastic material and from about 20 weight percent to about 80 weight percent fibers based on a total weight of the porous core layer, and at least one skin covering a surface of the core layer. The skin includes at least one of a thermoplastic film, a fiber based scrim, a non-woven fabric, and a woven fabric.Type: ApplicationFiled: March 26, 2004Publication date: September 29, 2005Inventors: Venkatkrishna Raghavendran, Daniel Woodman, Erich Teutsch, Ralph Buoniconti, Scott Davis, Paul Bristow, Minquan Cheng, Daniel Sowle, Benny David
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Patent number: 6855858Abstract: This invention is directed to a method of removing dimethyl ether from an olefin stream. The method includes distilling the olefin stream so that the dimethyl ether is separated out of the olefin stream with propane. The olefin stream can then be further distilled to provide a polymer grade ethylene stream and a polymer grade propylene stream, with each stream containing not greater than about 10 wppm dimethyl ether.Type: GrantFiled: July 15, 2002Date of Patent: February 15, 2005Assignee: ExxonMobil Chemical Patents Inc.Inventors: Minquan Cheng, Jeffrey J. Phillips, Michael Peter Nicoletti, David Ritchie Lumgair, Jr., John Richard Shutt, Jeffrey Alan Kabin
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Patent number: 6660812Abstract: Disclosed is a system of making an olefin derivative from a dilute olefin feed. Dilute olefin is sent to an olefin reaction unit to form an olefin derivative product. The olefin derivative product is recovered from the reaction unit while a vent stream is also removed. Olefin is separated from the vent stream, and the olefin is sent to the olefin reaction unit for additional processing.Type: GrantFiled: June 15, 2001Date of Patent: December 9, 2003Assignee: ExxonMobil Chemical Patents Inc.Inventors: Keith H. Kuechler, Minquan Cheng, Marc L. DeChellis, David R. Lumgair, Jr., Russell D. Sellen, Gary F. Janda
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Publication number: 20030130555Abstract: Disclosed is a method of recovering oxygenates from an olefin production process and oxygenate compositions that can be recovered from an olefin production process. The recovered oxygenate compositions comprise a mixture of alcohols, ethers, ketones, and/or aldehydes.Type: ApplicationFiled: November 30, 2001Publication date: July 10, 2003Inventors: Minquan Cheng, Michael Peter Nicoletti
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Publication number: 20030125597Abstract: This invention is directed to a method of removing dimethyl ether from an olefin stream. The method includes distilling the olefin stream so that the dimethyl ether is separated out of the olefin stream with propane. The olefin stream can then be further distilled to provide a polymer grade ethylene stream and a polymer grade propylene stream, with each stream containing not greater than about 10 wppm dimethyl ether.Type: ApplicationFiled: July 15, 2002Publication date: July 3, 2003Inventors: Minquan Cheng, Jeffrey J. Phillips, Michael Peter Nicoletti, David Ritchie Lumgair,, John Richard Shutt, Jeffrey Alan Kabin
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Patent number: 6559248Abstract: Disclosed is a method of purifying olefin containing oxygenate contaminants. The method incorporates the use of extractive distillation. Under the appropriate conditions, olefins containing very low levels of oxygenate contaminants can be recovered.Type: GrantFiled: August 31, 2001Date of Patent: May 6, 2003Assignee: ExxonMobil Chemical Patents Inc.Inventors: Dan E. Hendriksen, Minquan Cheng, Keith H. Kuechler, David R. Lumgair, Michael P. Nicoletti, Richard Shutt
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Publication number: 20030045761Abstract: Disclosed is a system of making an olefin derivative from a dilute olefin feed. Dilute olefin is sent to an olefin reaction unit to form an olefin derivative product. The olefin derivative product is recovered from the reaction unit while a vent stream is also removed. Olefin is separated from the vent stream, and the olefin is sent to the olefin reaction unit for additional processing.Type: ApplicationFiled: June 15, 2001Publication date: March 6, 2003Inventors: Keith H. Kuechler, Minquan Cheng, Marc L. DcChellis, David R. Lumgair, Russell D. Sellen, Gary F. Janda
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Publication number: 20030045655Abstract: Disclosed is a method of purifying olefin containing oxygenate contaminants. The method incorporates the use of extractive distillation. Under the appropriate conditions, olefins containing very low levels of oxygenate contaminants can be recovered.Type: ApplicationFiled: August 31, 2001Publication date: March 6, 2003Inventors: Dan E. Hendriksen, Minquan Cheng, Keith H. Kuechler, David R. Lumgair, Michael P. Nicoletti, Richard Shutt
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Publication number: 20020155216Abstract: In one embodiment, a spin coating process comprises: dispensing a solution of a solution solvent and about 3 to about 30 wt % thermoplastic polymer, based upon the total weight of the solution, wherein the solution solvent has a boiling point at atmospheric pressure of about 110° C. to about 250° C., a polarity index of greater than or equal to about 4.0, a pH of about 5.5 to about 9; spinning the substrate; and removing the solution solvent to produce a coated substrate comprising a coating having less than or equal to 10 asperities over the entire surface of the coated substrate.Type: ApplicationFiled: April 18, 2002Publication date: October 24, 2002Inventors: John Bradford Reitz, Minquan Cheng, Albert G. Dietz, Thomas P. Feist, Robert R. Gallucci, Thomas B. Gorczyca