Patents by Inventor Rongsheng Ruan
Rongsheng Ruan 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: 11890386Abstract: Disinfecting particulate material includes combining the particulate material with a photocatalyst to yield a mixture, irradiating the mixture for a length of time with pulses from a light source having broadband emission spectrum between 190 nm-1100 nm to yield an irradiated mixture, and separating the photocatalyst from the disinfected mixture to yield the disinfected particulate matter. Irradiating the mixture inactivates microorganisms in the mixture to yield a disinfected mixture. A system for disinfecting particulate material includes a pulsed light source having a broadband emission spectrum in a range between about 190 nm and about 1100 nm, a chamber defining a cavity optically coupled to the pulsed light source, a humidifier, a fan, and one or more sensors. The chamber includes a conveyor configured to accept the particulate material and arranged such that the pulses emitted by the pulsed light source irradiate the particulate material on the conveyor.Type: GrantFiled: March 13, 2020Date of Patent: February 6, 2024Assignee: Regents of the University of MinnesotaInventors: Rongsheng Ruan, Yanling Cheng, Nan Zhou, Dongjie Chen, Peng Peng, Yunpu Wang, Renchuan Zhang, Charles Schiappacasse, Ling Chen
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Publication number: 20230227728Abstract: A method of producing a hydrocarbon fuel from a soapstock includes supplying a pyrolysis reactor that includes a microwave absorbent bed susceptible to microwave irradiation, applying microwave energy to the pyrolysis reactor, wherein the microwave absorbent bed converts the microwave energy to thermal energy, supplying the soapstock to the microwave absorbent bed, and condensing a vapor generated by pyrolysis of the soapstock sufficient to collect the hydrocarbon fuel.Type: ApplicationFiled: February 3, 2023Publication date: July 20, 2023Inventors: Rongsheng Ruan, Erik Anderson
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Patent number: 11591523Abstract: A distillation apparatus for use in microwave-assisted pyrolysis includes a microwave, a pyrolysis reactor, a microwave-absorbent bed, and a condenser. The pyrolysis reactor is located within the microwave and configured to receive a liquid input stream and to output a vapor. The microwave-absorbent bed is located within the pyrolysis reactor that converts microwave energy provided by the microwave to thermal energy to initiate pyrolysis within the pyrolysis reactor, wherein the pyrolysis reactor provides a vapor output. The condenser is configured to receive the vapor output of the pyrolysis reactor and to cool and condense the vapor into a recoverable product.Type: GrantFiled: October 11, 2021Date of Patent: February 28, 2023Assignee: Resynergi, Inc.Inventors: Rongsheng Ruan, Erik Anderson
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Publication number: 20220025274Abstract: A distillation apparatus for use in microwave-assisted pyrolysis includes a microwave, a pyrolysis reactor, a microwave-absorbent bed, and a condenser. The pyrolysis reactor is located within the microwave and configured to receive a liquid input stream and to output a vapor. The microwave-absorbent bed is located within the pyrolysis reactor that converts microwave energy provided by the microwave to thermal energy to initiate pyrolysis within the pyrolysis reactor, wherein the pyrolysis reactor provides a vapor output. The condenser is configured to receive the vapor output of the pyrolysis reactor and to cool and condense the vapor into a recoverable product.Type: ApplicationFiled: October 11, 2021Publication date: January 27, 2022Inventors: Rongsheng Ruan, Erik Anderson
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Patent number: 11142700Abstract: A distillation apparatus for use in microwave-assisted pyrolysis includes a microwave, a pyrolysis reactor, a microwave-absorbent bed, and a condenser. The pyrolysis reactor is located within the microwave and configured to receive a liquid input stream and to output a vapor. The microwave-absorbent bed is located within the pyrolysis reactor that converts microwave energy provided by the microwave to thermal energy to initiate pyrolysis within the pyrolysis reactor, wherein the pyrolysis reactor provides a vapor output. The condenser is configured to receive the vapor output of the pyrolysis reactor and to cool and condense the vapor into a recoverable product.Type: GrantFiled: April 19, 2019Date of Patent: October 12, 2021Assignee: Resynergi, Inc.Inventors: Rongsheng Ruan, Erik Anderson
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Publication number: 20200289681Abstract: Disinfecting particulate material includes combining the particulate material with a photocatalyst to yield a mixture, irradiating the mixture for a length of time with pulses from a light source having broadband emission spectrum between 190 nm-1100 nm to yield an irradiated mixture, and separating the photocatalyst from the disinfected mixture to yield the disinfected particulate matter. Irradiating the mixture inactivates microorganisms in the mixture to yield a disinfected mixture. A system for disinfecting particulate material includes a pulsed light source having a broadband emission spectrum in a range between about 190 nm and about 1100 nm, a chamber defining a cavity optically coupled to the pulsed light source, a humidifier, a fan, and one or more sensors. The chamber includes a conveyor configured to accept the particulate material and arranged such that the pulses emitted by the pulsed light source irradiate the particulate material on the conveyor.Type: ApplicationFiled: March 13, 2020Publication date: September 17, 2020Inventors: Rongsheng Ruan, Yanling Cheng, Nan Zhou, Dongjie Chen, Peng Peng, Yunpu Wang, Renchuan Zhang, Charles Schiappacasse, Ling Chen
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Publication number: 20190322940Abstract: A distillation apparatus for use in microwave-assisted pyrolysis includes a microwave, a pyrolysis reactor, a microwave-absorbent bed, and a condenser. The pyrolysis reactor is located within the microwave and configured to receive a liquid input stream and to output a vapor. The microwave-absorbent bed is located within the pyrolysis reactor that converts microwave energy provided by the microwave to thermal energy to initiate pyrolysis within the pyrolysis reactor, wherein the pyrolysis reactor provides a vapor output. The condenser is configured to receive the vapor output of the pyrolysis reactor and to cool and condense the vapor into a recoverable product.Type: ApplicationFiled: April 19, 2019Publication date: October 24, 2019Inventors: Rongsheng Ruan, Erik Anderson
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Patent number: 9745530Abstract: A method for production of a biodiesel is described herein. The method for production of a biodiesel comprises (a) separating solids from a waste oil composition to provide a clarified oil composition; (b) acidifying the clarified oil composition to produce an acidified oil composition including free fatty acids derived from the waste oil; (c) converting at least a portion of the free fatty acids in the acidified oil composition to glycerides to provide a glyceride composition; and (d) reacting at least a portion of the glycerides in the glyceride composition with methanol to form fatty acid methyl ester to provide a biodiesel composition.Type: GrantFiled: February 9, 2016Date of Patent: August 29, 2017Assignees: Regents of the University of Minnesota, China Agricultural UniversityInventors: Rongsheng Ruan, Min Min Addy, Yong Nie, Erik Andrew Anderson, Chonghao Bi, Dong Li, Ling Chen
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Publication number: 20160230106Abstract: A method for production of a biodiesel is described herein. The method for production of a biodiesel comprises (a) separating solids from a waste oil composition to provide a clarified oil composition; (b) acidifying the clarified oil composition to produce an acidified oil composition including free fatty acids derived from the waste oil; (c) converting at least a portion of the free fatty acids in the acidified oil composition to glycerides to provide a glyceride composition; and (d) reacting at least a portion of the glycerides in the glyceride composition with methanol to form fatty acid methyl ester to provide a biodiesel composition.Type: ApplicationFiled: February 9, 2016Publication date: August 11, 2016Inventors: Rongsheng Ruan, Min Min Addy, Yong Nie, Erik Andrew Anderson, Chonghao Bi, Dong Li, Ling Chen
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Publication number: 20140105807Abstract: The disclosure herein describes a method for producing ammonia by introducing N2, CO and water into a non-thermal plasma in the presence of a catalyst, the catalyst being effective to promote the disassociation of N2, CO and water to form reactants that in turn react to produce NH3 and CH4. This disclosure also describes producing a reactive hydrogen ion or free radical by the method comprising passing water through a non-thermal plasma in the presence of a catalyst, the catalyst being effective to promote the dissociation of water.Type: ApplicationFiled: December 26, 2013Publication date: April 17, 2014Inventors: Rongsheng Ruan, Shaobo Deng, Zhiping Le, Yanling Cheng, Xiangyang Lin, Ling Chen
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Patent number: 8641872Abstract: The disclosure herein describes a method for producing ammonia by introducing N2, CO and water into a non-thermal plasma in the presence of a catalyst, the catalyst being effective to promote the disassociation of N2, CO and water to form reactants that in turn react to produce NH3 and CH4. This disclosure also describes producing a reactive hydrogen ion or free radical by the method comprising passing water through a non-thermal plasma in the presence of a catalyst, the catalyst being effective to promote the dissociation of water.Type: GrantFiled: September 16, 2009Date of Patent: February 4, 2014Assignee: Regents of the University of MinnesotaInventors: Rongsheng Ruan, Shaobo Deng, Zhiping Le, Yanling Cheng, Xiangyang Lin, Ling Chen
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Publication number: 20110233047Abstract: The disclosure herein describes a method for producing ammonia by introducing N2, CO and water into a non-thermal plasma in the presence of a catalyst, the catalyst being effective to promote the disassociation of N2, CO and water to form reactants that in turn react to produce NH3 and CH4. This disclosure also describes producing a reactive hydrogen ion or free radical by the method comprising passing water through a non-thermal plasma in the presence of a catalyst, the catalyst being effective to promote the dissociation of water.Type: ApplicationFiled: September 16, 2009Publication date: September 29, 2011Inventors: Rongsheng Ruan, Shaoboo Deng, Le Zhiping, Yanling Cheng, Xiangyang Lin, Ling Chen
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Patent number: 7931811Abstract: A fluid treatment device and method are provided for generating an electric field across a gap between first and second electrode and for concentrating the electric field within a fluid treatment chamber located in the gap.Type: GrantFiled: October 27, 2006Date of Patent: April 26, 2011Assignee: Regents of The University of MinnesotaInventors: Rongsheng Ruan, Shaobo Deng, Ling Chen, Xingyang Lin, Lloyd Metzger
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Publication number: 20080099406Abstract: A fluid treatment device and method are provided for generating an electric field across a gap between first and second electrode and for concentrating the electric field within a fluid treatment chamber located in the gap.Type: ApplicationFiled: October 27, 2006Publication date: May 1, 2008Applicant: Regents of The University of MinnesotaInventors: Rongsheng Ruan, Shaobo Deng, Ling Chen, Xiangyang Lin, Lloyd Metzger
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Publication number: 20060204631Abstract: The present invention comprises an improved method for refining cellulose that produces a highly refined cellulosic material. The method comprises soaking raw material in a mild NaOH using reduced temperatures and pressures, and refining the material with a plate refiner so that a waste water stream is reduced in volume and has a pH within a range of 8 to 9. The present invention also comprises a HRC gel having a lignin concentration of at least about one (1)% by weight, and a water retention capacity of about 25 to at least about 56 g H2O/g dry HRC.Type: ApplicationFiled: May 16, 2006Publication date: September 14, 2006Applicants: Regents of the University of Minnesota, Agricultural Utilization Research InstituteInventors: Brock Lundberg, Lin Gu, Rongsheng Ruan, Ling Chen, Paul Addis, Jack Johnson