Patents by Inventor Liang-Shih Fan

Liang-Shih Fan 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).

  • Publication number: 20250136443
    Abstract: A reactor system may comprise a moving bed reactor, a fluidized bed reactor, and a separation unit. The moving bed reactor may comprise catalyst material particles comprising a metal oxide support and a transition metal alloy, where the transition metal alloy comprises two transition metal elements. The moving bed reactor may comprise an inlet configured to receive a hydrocarbon and an outlet configured to provide hydrogen (H2) generated within the moving bed reactor. The fluidized bed reactor may be in fluid communication with the moving bed reactor and configured to receive the catalyst material particles and deposited carbon material from the moving bed reactor. The separation unit may be in fluid communication with an outlet of the fluidized bed reactor and configured to separate the catalyst material particles from carbon material and inert gas. The separation unit may be in fluid communication with the moving bed reactor.
    Type: Application
    Filed: February 16, 2023
    Publication date: May 1, 2025
    Inventors: Liang-Shih Fan, Anuj S. Joshi, Rushikesh K. Joshi, Zhuo Cheng
  • Publication number: 20250002336
    Abstract: An example method for operating an energy recovery system may comprise providing a reducing gas stream to an inlet of the energy recovery system, contacting redox particles with the reducing gas stream, whereupon the at least one reducing gas species undergoes a chemical reaction with the redox particles to generate carbon dioxide (CO2) and/or steam (H2O) obtaining a first product stream from the energy recovery system, providing an oxidizing gas stream comprising steam (H2O) to the energy recovery system such that hydrogen gas (H2) is generated, and obtaining a second product stream from the energy recovery system, the second product stream comprising hydrogen gas (H2). The reducing gas stream may comprise at least one reducing gas species comprising at least one of carbon monoxide (CO), methane (CH4), hydrocarbons (C2+), hydrogen gas (H2), and carbon dioxide (CO2). The first product stream may comprise carbon dioxide (CO2) and steam (H2O).
    Type: Application
    Filed: November 24, 2021
    Publication date: January 2, 2025
    Inventors: Liang-Shih Fan, Andrew Tong, Rushikesh Joshi, Dawei Wang, Vedant Shah, Dikai Xu
  • Patent number: 12161969
    Abstract: Exemplary reactor systems may include multiple reactors in fluid communication. Oxygen carrier particles comprising a support material and metal oxide can be provided to a first reactor along with flue gas comprising carbon dioxide (CO2). An output of the first reactor is free or substantially free of carbon dioxide (CO2). The oxygen carrier particles can then be provided to one or more reactors in the system along with a hydrocarbon stream and, in some instances, an oxidizing stream. Outlets from these one or more reactors may include hydrogen gas (H2), carbon monoxide (CO), and/or other species, depending upon the content of the hydrocarbon streams and the oxidizing streams.
    Type: Grant
    Filed: September 3, 2020
    Date of Patent: December 10, 2024
    Assignee: OHIO STATE INNOVATION FOUNDATION
    Inventors: Liang-Shih Fan, Deven Baser, Vedant Shah, Zhuo Cheng
  • Patent number: 12134560
    Abstract: Systems and methods generally involve processing a gaseous reducing agent and a gaseous reforming agent to produce syngas in the presence of a stable-phase change metal-oxide based oxygen carrier. During operation, an oxygen content is measured for a reactor input stream and a reactor output stream. A percent oxygen depletion of the metal oxide is determined using an initial oxygen content of the metal oxide, the oxygen content of the input stream, and the oxygen content of the output stream. Based on the percent oxygen depletion, a mole ratio of reducing gas to oxidant in the input stream may be adjusted accordingly.
    Type: Grant
    Filed: January 16, 2020
    Date of Patent: November 5, 2024
    Assignee: OHIO STATE INNOVATION FOUNDATION
    Inventors: Liang-Shih Fan, Deven Baser, Andrew Tong, Sourabh G. Nadgouda, Fanhe Kong, Zhuo Cheng, Mandar Kathe
  • Publication number: 20240116757
    Abstract: Disclosed herein are systems (e.g., moving bed redox systems) and methods for supplying thermal energy to an endothermic chemical process.
    Type: Application
    Filed: February 8, 2022
    Publication date: April 11, 2024
    Inventors: Liang-Shih FAN, Dikai XU, Dawei WANG, Qiaochu ZHANG, Andrew TONG
  • Patent number: 11826700
    Abstract: Systems and methods use bimetallic alloy particles for converting hydrogen sulfide (H2S) to hydrogen (H2) and sulfur (S), typically during multiple operations. In a first operation, metal alloy composite particles can be converted to a composite metal sulfide. In a second operation, composite metal sulfide from the first operation can be regenerated back to the metal alloy composite particle using an inert gas stream. Pure, or substantially pure, sulfur can also be generated during the second operation.
    Type: Grant
    Filed: August 3, 2022
    Date of Patent: November 28, 2023
    Assignee: OHIO STATE INNOVATION FOUNDATION
    Inventors: Liang-Shih Fan, Sourabh G. Nadgouda, Kalyani V. Jangam
  • Publication number: 20230357005
    Abstract: An exemplary reactor system may include a first reactor, a second reactor, a third reactor, and a fourth reactor. The first reactor may be in parallel with the second reactor and the third reactor. The second reactor and third reactor may be in series. The fourth reactor may be configured to receive reduced oxygen carriers from the other reactors, generate oxidized oxygen carriers, and provide the oxidized oxygen carriers back to the other reactors. Carbonaceous feedstock may be used within one or more reactors.
    Type: Application
    Filed: May 4, 2023
    Publication date: November 9, 2023
    Inventors: Liang-Shih Fan, Rushikesh K. Joshi, Eric J. Falascino, Dawei Wang
  • Patent number: 11767275
    Abstract: Systems and methods include providing a gaseous alkane input stream and metal sulfide (MSx) particles that can react with an alkane in the gaseous alkane input stream to generate an alkene, a reduced metal sulfide (MSx?1) particle, and at least one of: hydrogen sulfide (H2S) and at least one sulfur containing compound selected from: S2, CS, and CS2. A product stream can be collected that includes the alkene and at least one of: hydrogen sulfide (H2S) and the at least one sulfur containing compound. A reduced metal sulfide (MSx?1) particle reacts with sulfur in a sulfur stream and can generate the metal sulfide (MSx) particle and hydrogen (H2).
    Type: Grant
    Filed: September 26, 2022
    Date of Patent: September 26, 2023
    Assignee: OHIO STATE INNOVATION FOUNDATION
    Inventors: Liang-Shih Fan, Deven Baser, Sourabh Nadgouda, Anuj Joshi, Pinak Mohapatra
  • Publication number: 20230241679
    Abstract: Reactor configurations may include one or more staged inlets and/or one or more staged outlets for gaseous and solid feedstocks. In one embodiment of the present disclosure, a reactor design for gas-solid reaction with one or more additional outlet for gas and/or solid phase is provided. In yet another embodiment, the design for a gas-solid reactor with one side inlet and two outlets for gas phase is described. In one embodiment, a reactor design with pairs of inlet and outlet for both gas and solid phase is provided. In another embodiment, a reactor design with one or more side inlets but only one outlet for gas phase is provided. In yet another embodiment, a reactor design with two inlets at the top/bottom of reactor and two side outlets for gaseous phase is described. In yet another embodiment, a reactor design with one or more side inlets and outlets for both gas and solid phases is provided.
    Type: Application
    Filed: June 29, 2021
    Publication date: August 3, 2023
    Inventors: Liang-Shih Fan, Andrew Tong, Liang Zeng, Yitao Zhang, Frank Kong, Yu-Yen Chen
  • Publication number: 20230113165
    Abstract: Exemplary chemical looping systems include at least one type of active solid particles and inert solid particles that may be provided between various reactors in exemplary systems. Certain chemical looping systems may include a reducer reactor in fluid communication with a combustor reactor. Some chemical looping systems may additionally include an oxidizer reactor in fluid communication with the combustor reactor and the reducer reactor. Generally, active solid particles are capable of cycling between a reduction reaction and an oxidation reaction. Generally, inert solid particles are not reactants in either the reduction reaction or the oxidation reaction.
    Type: Application
    Filed: September 10, 2020
    Publication date: April 13, 2023
    Inventors: Liang-Shih Fan, Fanhe Kong, Vedant Shah
  • Publication number: 20230081569
    Abstract: Systems and methods use bimetallic alloy particles for converting hydrogen sulfide (H2S) to hydrogen (H2) and sulfur (S), typically during multiple operations. In a first operation, metal alloy composite particles can be converted to a composite metal sulfide. In a second operation, composite metal sulfide from the first operation can be regenerated back to the metal alloy composite particle using an inert gas stream. Pure, or substantially pure, sulfur can also be generated during the second operation.
    Type: Application
    Filed: August 3, 2022
    Publication date: March 16, 2023
    Inventors: Liang-Shih Fan, Sourabh G. Nadgouda, Kalyani V. Jangam
  • Publication number: 20230009840
    Abstract: Systems and methods include providing a gaseous alkane input stream and metal sulfide (MSx) particles that can react with an alkane in the gaseous alkane input stream to generate an alkene, a reduced metal sulfide (MSx-1) particle, and at least one of: hydrogen sulfide (H2S) and at least one sulfur containing compound selected from: S2, CS, and CS2. A product stream can be collected that includes the alkene and at least one of: hydrogen sulfide (H2S) and the at least one sulfur containing compound. A reduced metal sulfide (MSx-1) particle reacts with sulfur in a sulfur stream and can generate the metal sulfide (MSx) particle and hydrogen (H2).
    Type: Application
    Filed: September 26, 2022
    Publication date: January 12, 2023
    Inventors: Liang-Shih Fan, Deven Baser, Sourabh Nadgouda, Anuj Joshi, Pinak Mohapatra
  • Publication number: 20220331736
    Abstract: Exemplary reactor systems may include multiple reactors in fluid communication. Oxygen carrier particles comprising a support material and metal oxide can be provided to a first reactor along with flue gas comprising carbon dioxide (CO2). An output of the first reactor is free or substantially free of carbon dioxide (CO2). The oxygen carrier particles can then be provided to one or more reactors in the system along with a hydrocarbon stream and, in some instances, an oxidizing stream. Outlets from these one or more reactors may include hydrogen gas (H2), carbon monoxide (CO), and/or other species, depending upon the content of the hydrocarbon streams and the oxidizing streams.
    Type: Application
    Filed: September 3, 2020
    Publication date: October 20, 2022
    Inventors: Liang-Shih Fan, Deven Baser, Vedant Shah, Zhuo Cheng
  • Patent number: 11453626
    Abstract: Systems and methods include providing a gaseous alkane input stream and metal sulfide (MSx) particles that can react with an alkane in the gaseous alkane input stream to generate an alkene, a reduced metal sulfide (MSx-1) particle, and at least one of: hydrogen sulfide (H2S) and at least one sulfur containing compound selected from: S2, CS, and CS2. A product stream can be collected that includes the alkene and at least one of: hydrogen sulfide (H2S) and the at least one sulfur containing compound. A reduced metal sulfide (MSx-1) particle reacts with sulfur in a sulfur stream and can generate the metal sulfide (MSx) particle and hydrogen (H2).
    Type: Grant
    Filed: April 8, 2020
    Date of Patent: September 27, 2022
    Assignee: OHIO STATE INNOVATION FOUNDATION
    Inventors: Liang-Shih Fan, Deven Baser, Sourabh Nadgouda, Anuj Joshi, Pinak Mohapatra
  • Publication number: 20220288568
    Abstract: Exemplary oxygen carrier particles may comprise a mesoporous support and a plurality of metal oxide-based nanoparticles immobilized on the mesoporous support. The plurality of metal oxide-based nanoparticles may comprise 10 volume percent to 80 volume percent of mesopores in the mesoporous support. A reactor may comprise a feedstock inlet in fluid communication with a carbonaceous feedstock source, a product stream outlet, and oxygen carrier particles. Exemplary reactors may be operated by providing a carbonaceous feedstock to an inlet of the reactor, providing oxygen carrier particles within the reactor, and collecting a product stream from an outlet of the reactor.
    Type: Application
    Filed: August 19, 2020
    Publication date: September 15, 2022
    Inventors: Liang-Shih Fan, Yan Liu, Lang Qin, Zhuo Cheng
  • Patent number: 11413574
    Abstract: Systems and methods use bimetallic alloy particles for converting hydrogen sulfide (H2S) to hydrogen (H2) and sulfur (S), typically during multiple operations. In a first operation, metal alloy composite particles can be converted to a composite metal sulfide. In a second operation, composite metal sulfide from the first operation can be regenerated back to the metal alloy composite particle using an inert gas stream. Pure, or substantially pure, sulfur can also be generated during the second operation.
    Type: Grant
    Filed: August 7, 2019
    Date of Patent: August 16, 2022
    Assignee: OHIO STATE INNOVATION FOUNDATION
    Inventors: Liang-Shih Fan, Sourabh G. Nadgouda, Kalyani V. Jangam
  • Publication number: 20220089438
    Abstract: Systems and methods generally involve processing a gaseous reducing agent and a gaseous reforming agent to produce syngas in the presence of a stable-phase change metal-oxide based oxygen carrier. During operation, an oxygen content is measured for a reactor input stream and a reactor output stream. A percent oxygen depletion of the metal oxide is determined using an initial oxygen content of the metal oxide, the oxygen content of the input stream, and the oxygen content of the output stream. Based on the percent oxygen depletion, a mole ratio of reducing gas to oxidant in the input stream may be adjusted accordingly.
    Type: Application
    Filed: January 16, 2020
    Publication date: March 24, 2022
    Inventors: Liang-Shih Fan, Deven Baser, Andrew Tong, Sourabh G. Nadgouda, Fanhe Kong, Zhuo Cheng, Mandar Kathe
  • Publication number: 20220089511
    Abstract: Systems and methods include providing a gaseous alkane input stream and metal sulfide (MSx) particles that can react with an alkane in the gaseous alkane input stream to generate an alkene, a reduced metal sulfide (MSx-1) particle, and at least one of: hydrogen sulfide (H2S) and at least one sulfur containing compound selected from: S2, CS, and CS2. A product stream can be collected that includes the alkene and at least one of: hydrogen sulfide (H2S) and the at least one sulfur containing compound. A reduced metal sulfide (MSx-1) particle reacts with sulfur in a sulfur stream and can generate the metal sulfide (MSx) particle and hydrogen (H2).
    Type: Application
    Filed: April 8, 2020
    Publication date: March 24, 2022
    Inventors: Liang-Shih Fan, Deven Baser, Sourabh Nadgouda, Anuj Joshi, Pinak Mohapatra
  • Patent number: 11111143
    Abstract: A reactor configuration is proposed for selectively converting gaseous, liquid or solid fuels to a syngas specification which is flexible in terms of H2/CO ratio. This reactor and system configuration can be used with a specific oxygen carrier to hydro-carbon fuel molar ratio, a specific range of operating temperatures and pressures, and a co-current downward moving bed system. The concept of a CO2 stream injected in-conjunction with the specified operating parameters for a moving bed reducer is claimed, wherein the injection location in the reactor system is flexible for both steam and CO2 such that, carbon efficiency of the system is maximized.
    Type: Grant
    Filed: April 12, 2017
    Date of Patent: September 7, 2021
    Assignee: OHIO STATE INNOVATION FOUNDATION
    Inventors: Liang-shih Fan, Abbey Empfield, Mandar Kathe, Charles Fryer, Elena Blair
  • Patent number: 11090624
    Abstract: A reactor system comprising a first reactor assembly, a first pressure transition assembly, a second reactor assembly and a second pressure transition assembly.
    Type: Grant
    Filed: July 31, 2018
    Date of Patent: August 17, 2021
    Assignee: OHIO STATE INNOVATION FOUNDATION
    Inventors: Liang-Shih Fan, Dawei Wang, Mandar Kathe