Patents by Inventor Lisa Nguyen

Lisa Nguyen 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).

  • Patent number: 11766666
    Abstract: A catalyst for converting hydrocarbon, a method of making the same, and a method of using the same are provided. Such a catalyst includes a zeotype microporous material, a binder material, and a metal phosphide, which can be in a range of from 0.01% to 10% by weight of a total weight of the catalyst. For example, such a catalyst can be used to convert light alkene or alkane into aromatic hydrocarbon such as benzene, toluene, xylenes, and a combination thereof. The alkene may be ethylene, propylene, butylene, or a combination thereof. The alkene may be supplied directly or from a stream converted from light alkane such as methane, ethane, propane, butane, or a combination thereof.
    Type: Grant
    Filed: December 30, 2020
    Date of Patent: September 26, 2023
    Assignees: CHINA INVESTMENT CORPORATION LIMITED, NATIONAL INSTITUTE OF CLEAN-AND-LOW-CARBON ENERGY
    Inventors: Lisa Nguyen, Hui Wang, Junjun Shan, Louis Guillen, Hua Liu, Aihua Zhang, Joshua Miles
  • Publication number: 20230249163
    Abstract: The present disclosure relates to the catalytic field, and discloses a catalyst system and a light hydrocarbon aromatization method, a carbon dioxide hydrogenation process and a method for enhancing the catalytic activity and/or lifetime of the catalyst during a heterogeneous catalysis process, the catalyst system comprising a porous material layer containing an active metal component and a molecular sieve layer. The catalyst system provided by the present disclosure exhibits desirable catalytic activity, stability, renewability and selectivity, thus has significant benefits.
    Type: Application
    Filed: March 24, 2022
    Publication date: August 10, 2023
    Applicants: China Energy Investment Corporation Limited, National Institute of Clean-and-Low-Carbon Energy
    Inventors: Junjun Shan, Louis Guillen, Hui Wang, Aihua Zhang, Lisa Nguyen, Joshua Miles, Saydul Sardar, Hua Liu
  • Patent number: 11648540
    Abstract: The present disclosure provides a modified catalyst, and preparation method and a method for producing aromatic hydrocarbons by aromatization of olefins using the modified catalyst. The modified catalyst comprises an acidic molecular sieve and an olefin aromatization active metal component, the total acid amount of the catalyst as measured by NH3-TPD method is not higher than 0.35 mmol/g, and ratio of the strong acid to weak acid is within a range of 0.8-1.2.
    Type: Grant
    Filed: January 25, 2021
    Date of Patent: May 16, 2023
    Assignees: China Energy Investment Corporation Limited, National Institute of Clean-and-Low-Carbon Energy
    Inventors: Aihua Zhang, Hui Wang, Junjun Shan, Joshua Miles, Lisa Nguyen, Louis Guillen, Amin Sardar, Hua Liu
  • Patent number: 11517884
    Abstract: A catalyst that includes heterogeneous metal carbide nanomaterials and a novel preparation method to synthesize the metal carbide nanomaterials under relatively mild conditions to form an encapsulated transition metal and/or transition metal carbide nanoclusters in a support and/or binder. The catalyst may include confined platinum carbide nanoclusters. The preparation may include the treatment of encapsulated platinum nanoclusters with ethane at elevated temperatures. The catalysts may be used for catalytic hydrocarbon conversions, which include but are not limited to, ethane aromatization, and for selective hydrogenation, with negligible green oil production.
    Type: Grant
    Filed: January 16, 2020
    Date of Patent: December 6, 2022
    Assignees: CHINA ENERGY INVESTMENT CORPORATION LIMITED, NATIONAL INSTITUTE OF CLEAN-AND-LOW-CARBON ENERGY
    Inventors: Junjun Shan, Hui Wang, Lisa Nguyen, Joshua Miles, Jihong Cheng
  • Patent number: 11479519
    Abstract: A method for aromatization of light alkanes, comprising: subjecting the light alkanes to dehydroaromatization reaction in the presence of aromatization catalysts including carriers and metal active components supported on the carriers, the metal active components include platinum, the carriers include zeolites and binders, and at least 80 wt. % of the metal active components are distributed on the zeolites. The method of the present disclosure may increase yield of the target product—aromatic hydrocarbons, and the regenerated catalyst can still maintain high catalytic performance. In addition, the method of the present disclosure can meet the requirements of industrial applications.
    Type: Grant
    Filed: December 27, 2019
    Date of Patent: October 25, 2022
    Assignee: CHINA ENERGY INVESTMENT CORPORATION LIMITED
    Inventors: Hui Wang, Yizhi Xiang, John Matsubu, Junjun Shan, Jihong Cheng, Qi Sun, Lisa Nguyen
  • Patent number: 11479520
    Abstract: A system and a method are provided for producing aromatics. Such a system includes a cracker unit configured to convert a light alkane into an olefin-containing hydrocarbon comprising at least one alkene, and an aromatization unit. The light alkane is selected from the group consisting of methane, ethane, propane, butane, and a combination thereof. The cracker unit is configured to at least partially feed the olefin-containing hydrocarbon into the aromatization unit. Such an olefin-containing hydrocarbon comprises at least 40 wt. % of the at least one alkene. The aromatization unit is used to convert the olefin-containing hydrocarbon therein into a product stream, which includes an aromatic hydrocarbon selected from the group consisting of benzene, toluene, xylenes, and a combination thereof.
    Type: Grant
    Filed: April 13, 2021
    Date of Patent: October 25, 2022
    Assignees: China Energy Investment Corporation Limited, National Institute of Clean-and-Low-Carbon Energy
    Inventors: Joshua Miles, Hui Wang, Junjun Shan, Jihong Cheng, Anthony Ku, Lisa Nguyen
  • Publication number: 20220234034
    Abstract: The present disclosure provides a modified catalyst, and preparation method and a method for producing aromatic hydrocarbons by aromatization of olefins using the modified catalyst. The modified catalyst comprises an acidic molecular sieve and an olefin aromatization active metal component, the total acid amount of the catalyst as measured by NH3-TPD method is not higher than 0.35mmo1/g, and ratio of the strong acid to weak acid is within a range of 0.8-1.2.
    Type: Application
    Filed: January 25, 2021
    Publication date: July 28, 2022
    Applicants: China Energy Investment Corporation Limited, National Institute of Clean-and-Low-Carbon Energy
    Inventors: Aihua ZHANG, Hui WANG, Junjun SHAN, Joshua MILES, Lisa NGUYEN, Louis GUILLEN, Amin SARDAR, Hua LIU
  • Publication number: 20220203343
    Abstract: A catalyst for converting hydrocarbon, a method of making the same, and a method of using the same are provided. Such a catalyst includes a zeotype microporous material, a binder material, and a metal phosphide, which can be in a range of from 0.01% to 10% by weight of a total weight of the catalyst. For example, such a catalyst can be used to convert light alkene or alkane into aromatic hydrocarbon such as benzene, toluene, xylenes, and a combination thereof. The alkene may be ethylene, propylene, butylene, or a combination thereof. The alkene may be supplied directly or from a stream converted from light alkane such as methane, ethane, propane, butane, or a combination thereof.
    Type: Application
    Filed: December 30, 2020
    Publication date: June 30, 2022
    Applicants: China Energy Investment Corporation Limited, National Institute of Clean-and-Low-Carbon Energy
    Inventors: Lisa Nguyen, Hui Wang, Junjun Shan, Louis Guillen, Hua Liu, Aihua Zhang, Joshua Miles
  • Patent number: 11273430
    Abstract: The present discloses an aromatization catalyst, preparation process and application thereof and a low-carbon olefin aromatization process. The aromatization catalyst comprises a microporous material, a binder and a modifier; the microporous material is a zeolite molecular sieve, the binder is alumina, the modifier is phosphorus, and the molar ratio of the aluminum element in the binder to the phosphorus element is more than or equal to 1 and less than 5; the ratio of the acidity of the strongly acidic sites to the acidity of the weakly acidic sites of the olefin aromatization catalyst is less than 1.
    Type: Grant
    Filed: May 29, 2020
    Date of Patent: March 15, 2022
    Assignees: China Energy Investment Corporation Limited, National Institute of Clean-and-Low-Carbon Energy
    Inventors: Hui Wang, Lisa Nguyen, Junjun Shan, Joshua Miles, Jihong Cheng, Hua Liu
  • Publication number: 20210323895
    Abstract: A system and a method are provided for producing aromatics. Such a system includes a cracker unit configured to convert a light alkane into an olefin-containing hydrocarbon comprising at least one alkene, and an aromatization unit. The light alkane is selected from the group consisting of methane, ethane, propane, butane, and a combination thereof. The cracker unit is configured to at least partially feed the olefin-containing hydrocarbon into the aromatization unit. Such an olefin-containing hydrocarbon comprises at least 40 wt. % of the at least one alkene. The aromatization unit is used to convert the olefin-containing hydrocarbon therein into a product stream, which includes an aromatic hydrocarbon selected from the group consisting of benzene, toluene, xylenes, and a combination thereof.
    Type: Application
    Filed: April 13, 2021
    Publication date: October 21, 2021
    Applicants: China Energy Investment Corporation Limited, National Institute of Clean-and-Low-Carbon Energy
    Inventors: Joshua Miles, Hui Wang, Junjun Shan, Jihong Cheng, Anthony Ku, Lisa Nguyen
  • Patent number: 11016483
    Abstract: A system and method for operating an indoor/outdoor drone in a training mode that limits the maximum altitude during flight, restricts the ability to perform rapid maneuvers, and also may disable the ability to conduct aerial stunts. The system includes a flight controller that may select between the training mode, a normal mode, and a stunt mode. In the training mode, the flight controller restricts an increase in altitude of the drone beyond an altitude threshold, and also restricts an increase in one or more movement parameters of the drone beyond respective movement parameter thresholds. The selection of the training mode may disable the ability for the user to select the stunt mode.
    Type: Grant
    Filed: June 12, 2018
    Date of Patent: May 25, 2021
    Assignee: MerchSource, LLC
    Inventors: Kirk McLean, Lisa Nguyen, Michael Gerstner
  • Publication number: 20210016261
    Abstract: The present discloses an aromatization catalyst, preparation process and application thereof and a low-carbon olefin aromatization process. The aromatization catalyst comprises a microporous material, a binder and a modifier; the microporous material is a zeolite molecular sieve, the binder is alumina, the modifier is phosphorus, and the molar ratio of the aluminum element in the binder to the phosphorus element is more than or equal to 1 and less than 5; the ratio of the acidity of the strongly acidic sites to the acidity of the weakly acidic sites of the olefin aromatization catalyst is less than 1.
    Type: Application
    Filed: May 29, 2020
    Publication date: January 21, 2021
    Applicants: China Energy Investment Corporation Limited, National Institute of Clean-and-Low-Carbon Energy
    Inventors: Hui WANG, Lisa NGUYEN, Junjun SHAN, Joshua MILES, Jihong CHENG, Hua LIU
  • Publication number: 20200397291
    Abstract: Systems and methods of use involving sensors having a signal-to-noise ratio that is substantially unaffected by non-constant noise are provided for continuous analyte measurement in a host. In some embodiments, a continuous analyte measurement system is configured to be wholly, transcutaneously, intravascularly or extracorporeally implanted.
    Type: Application
    Filed: September 1, 2020
    Publication date: December 24, 2020
    Inventors: Peter C. Simpson, Robert J. Boock, Mark C. Brister, Monica A. Rixman, Kum Ming Woo, Lisa Nguyen, Seth R. Brunner, Arthur Chee, Melissa A. Nicholas, Matthew D. Wightlin, Jack Pryor, Dubravka Markovic
  • Patent number: 10791928
    Abstract: Systems and methods of use involving sensors having a signal-to-noise ratio that is substantially unaffected by non-constant noise are provided for continuous analyte measurement in a host. In some embodiments, a continuous analyte measurement system is configured to be wholly, transcutaneously, intravascularly or extracorporeally implanted.
    Type: Grant
    Filed: February 20, 2020
    Date of Patent: October 6, 2020
    Assignee: DexCom, Inc.
    Inventors: Peter C. Simpson, Robert J. Boock, Mark C. Brister, Monica A. Rixman, Kum Ming Woo, Lisa Nguyen, Seth R. Brunner, Arthur Chee, Melissa A. Nicholas, Matthew D. Wightlin, Jack Pryor, Dubravka Markovic
  • Publication number: 20200246783
    Abstract: A catalyst that includes heterogeneous metal carbide nanomaterials and a novel preparation method to synthesize the metal carbide nanomaterials under relatively mild conditions to form an encapsulated transition metal and/or transition metal carbide nanoclusters in a support and/or binder. The catalyst may include confined platinum carbide nanoclusters. The preparation may include the treatment of encapsulated platinum nanoclusters with ethane at elevated temperatures. The catalysts may be used for catalytic hydrocarbon conversions, which include but are not limited to, ethane aromatization, and for selective hydrogenation, with negligible green oil production.
    Type: Application
    Filed: January 16, 2020
    Publication date: August 6, 2020
    Applicants: CHINA ENERGY INVESTMENT CORPORATION LIMITED, NATIONAL INSTITUTE OF CLEAN-AND-LOW-CARBON ENERGY
    Inventors: Junjun SHAN, Hui WANG, Lisa NGUYEN, Joshua MILES, Jihong CHENG
  • Publication number: 20200246786
    Abstract: A catalyst that includes heterogeneous metal carbide nanomaterials and a novel preparation method to synthesize the metal carbide nanomaterials under relatively mild conditions to form an encapsulated transition metal and/or transition metal carbide nanoclusters in a support and/or binder. The catalyst may include confined platinum carbide nanoclusters. The preparation may include the treatment of encapsulated platinum nanoclusters with ethane at elevated temperatures. The catalysts may be used for catalytic hydrocarbon conversions, which include but are not limited to, ethane aromatization, and for selective hydrogenation, with negligible green oil production.
    Type: Application
    Filed: January 16, 2020
    Publication date: August 6, 2020
    Applicants: CHINA ENERGY INVESTMENT CORPORATION LIMITED, NATIONAL INSTITUTE OF CLEAN-AND-LOW-CARBON ENERGY
    Inventors: Junjun SHAN, Hui WANG, Lisa NGUYEN, Joshua MILES, Jihong CHENG
  • Publication number: 20200207683
    Abstract: A method for aromatization of light alkanes, comprising: subjecting the light alkanes to dehydroaromatization reaction in the presence of aromatization catalysts including carriers and metal active components supported on the carriers, the metal active components include platinum, the carriers include zeolites and binders, and at least 80 wt. % of the metal active components are distributed on the zeolites. The method of the present disclosure may increase yield of the target product—aromatic hydrocarbons, and the regenerated catalyst can still maintain high catalytic performance. In addition, the method of the present disclosure can meet the requirements of industrial applications.
    Type: Application
    Filed: December 27, 2019
    Publication date: July 2, 2020
    Applicants: China Energy Investment Corporation Limited, National Institute of Clean-and-Low-Carbon Energy
    Inventors: Hui Wang, Yizhi Xiang, John Matsubu, Junjun Shan, Jihong Cheng, Qi Sun, Lisa Nguyen
  • Publication number: 20200187776
    Abstract: Systems and methods of use involving sensors having a signal-to-noise ratio that is substantially unaffected by non-constant noise are provided for continuous analyte measurement in a host. In some embodiments, a continuous analyte measurement system is configured to be wholly, transcutaneously, intravascularly or extracorporeally implanted.
    Type: Application
    Filed: February 20, 2020
    Publication date: June 18, 2020
    Inventors: Peter C. Simpson, Robert J. Boock, Mark C. Brister, Monica A. Rixman, Kum Ming Woo, Lisa Nguyen, Seth R. Brunner, Arthur Chee, Melissa A. Nicholas, Matthew D. Wightlin, Jack Pryor, Dubravka Markovic
  • Publication number: 20200037875
    Abstract: Systems and methods of use involving sensors having a signal-to-noise ratio that is substantially unaffected by non-constant noise are provided for continuous analyte measurement in a host. In some embodiments, a continuous analyte measurement system is configured to be wholly, transcutaneously, intravascularly or extracorporeally implanted.
    Type: Application
    Filed: October 10, 2019
    Publication date: February 6, 2020
    Inventors: Peter C. Simpson, Robert J. Boock, Mark C. Brister, Monica A. Rixman, Kum Ming Woo, Lisa Nguyen, Seth R. Brunner, Arthur Chee, Melissa A. Nicholas, Matthew D. Wightlin, Jack Pryor, Dubravka Markovic
  • Publication number: 20200037874
    Abstract: Systems and methods of use involving sensors having a signal-to-noise ratio that is substantially unaffected by non-constant noise are provided for continuous analyte measurement in a host. In some embodiments, a continuous analyte measurement system is configured to be wholly, transcutaneously, intravascularly or extracorporeally implanted.
    Type: Application
    Filed: October 10, 2019
    Publication date: February 6, 2020
    Inventors: Peter C. Simpson, Robert J. Boock, Mark C. Brister, Monica A. Rixman, Kum Ming Woo, Lisa Nguyen, Seth R. Brunner, Arthur Chee, Melissa A. Nicholas, Matthew D. Wightlin, Jack Pryor, Dubravka Markovic