HYDROGEN SULFIDE CONVERSION
    1.
    发明公开

    公开(公告)号:US20240133048A1

    公开(公告)日:2024-04-25

    申请号:US18047781

    申请日:2022-10-18

    CPC classification number: C25B1/02 C25B9/23 C25B9/67

    Abstract: Power is provided to an electrochemical cell. The electrochemical cell includes an anode side and a cathode side. Hydrogen sulfide in a liquid state is flowed to the anode side. Providing power to the electrochemical cell facilitates electrolysis of the hydrogen sulfide to produce sulfur and protons on the anode side. Providing power to the electrochemical cell facilitates reduction of protons to produce hydrogen on the cathode side. A membrane separating the anode side from the cathode side prevents flow of hydrogen sulfide and sulfur from passing through the membrane while allowing hydrogen cations to pass through the membrane. Sulfur is flowed out of the anode side. Hydrogen is flowed out of the cathode side.

    Increasing reactant utilization in Fe/V flow batteries

    公开(公告)号:US11901598B2

    公开(公告)日:2024-02-13

    申请号:US17651116

    申请日:2022-02-15

    Abstract: A method and a system for using flow cell batteries with mixed Fe/V electrolytes are provided. An exemplary method includes flowing an anolyte through a first channel in an electrochemical cell, wherein the first channel is formed in the space between an anode current collector and an ion exchange membrane. A catholyte is flowed through a second channel in the electrochemical cell, wherein the second channel is formed in the space between a cathode current collector and the ion exchange membrane, wherein the first channel and the second channel are separated by an ion exchange membrane, and wherein the catholyte includes a mixed electrolyte including both iron and vanadium ions. Ions are flowed through the ion exchange membrane to oxidize the anolyte and reduce the catholyte. An electric current is generated between the anode current collector and the cathode current collector.

    Parking indicator comprising indicator retracting mechanism

    公开(公告)号:US11361662B2

    公开(公告)日:2022-06-14

    申请号:US15921985

    申请日:2018-03-15

    Abstract: Embodiments of this disclosure are directed to a parking indicator comprising a vehicle contact body, a pivoting contact body support, an elongated visibility indicator, an indicator actuating mechanism, and an indicator retracting mechanism. The pivoting contact body support is attached to the vehicle contact body and is configured to permit the vehicle contact body to pivot to a horizontally-oriented position when the vehicle contact body is grounded via the pivoting contact body support and is contacted by a vehicle entering a parking space occupied by the parking indicator. The elongated visibility indicator is mechanically coupled to the vehicle contact body via the indicator actuating mechanism such that the indicator actuating mechanism upholds the elongated visibility indicator in an extended position. The indicator retracting mechanism is configured to retract the elongated visibility indicator to a retracted position when the vehicle contact body pivots from the vertically-oriented position to the horizontally-oriented position.

    Method and system to modify the performance of a redox flow battery

    公开(公告)号:US11081712B2

    公开(公告)日:2021-08-03

    申请号:US16171542

    申请日:2018-10-26

    Abstract: According to one embodiment of the present disclosure, a redox flow battery is provided comprising an ionically conductive separator, a working side flowing electrolyte, a working electrode in ionic contact with the working side of the ionically conductive separator and the working side flowing electrolyte, a counter electrode, and an auxiliary electrode peripherally circumscribed by the working electrode in a common layer of the flow battery. The auxiliary electrode is in ionic contact with the working electrode, an electrically insulating peripheral gap separates the auxiliary electrode from the working electrode. A working electrode terminal is conductively coupled to the working electrode, an auxiliary electrode terminal is conductively coupled to the auxiliary electrode, and a counter electrode terminal is conductively coupled to the counter electrode. An auxiliary power source is configured to establish an auxiliary circuit voltage differential between the counter electrode terminal and the auxiliary electrode terminal, control an auxiliary electrode voltage such that the auxiliary electrode voltage is within an electrochemical window of the working side flowing electrolyte, and establish a voltage differential between the working electrode terminal and the auxiliary electrode terminal. A method of operation of the redox flow battery is further provided.

    PARKING INDICATOR COMPRISING INDICATOR RETRACTING MECHANISM

    公开(公告)号:US20190287399A1

    公开(公告)日:2019-09-19

    申请号:US15921985

    申请日:2018-03-15

    Abstract: Embodiments of this disclosure are directed to a parking indicator comprising a vehicle contact body, a pivoting contact body support, an elongated visibility indicator, an indicator actuating mechanism, and an indicator retracting mechanism. The pivoting contact body support is attached to the vehicle contact body and is configured to permit the vehicle contact body to pivot to a horizontally-oriented position when the vehicle contact body is grounded via the pivoting contact body support and is contacted by a vehicle entering a parking space occupied by the parking indicator. The elongated visibility indicator is mechanically coupled to the vehicle contact body via the indicator actuating mechanism such that the indicator actuating mechanism upholds the elongated visibility indicator in an extended position. The indicator retracting mechanism is configured to retract the elongated visibility indicator to a retracted position when the vehicle contact body pivots from the vertically-oriented position to the horizontally-oriented position.

    HYDROGEN SULFIDE CONVERSION
    9.
    发明公开

    公开(公告)号:US20240229249A9

    公开(公告)日:2024-07-11

    申请号:US18047757

    申请日:2022-10-19

    CPC classification number: C25B1/02 C25B9/23 C25B13/07

    Abstract: Power is provided to an electrochemical cell. The electrochemical cell includes an anode side and a cathode side. Hydrogen sulfide in a liquid state is flowed to the anode side. An operating temperature and an operating pressure are maintained within the anode side, such that the hydrogen sulfide in the anode side is at a supercritical state. Providing power to the electrochemical cell facilitates electrolysis of the hydrogen sulfide to produce sulfur and protons on the anode side. Providing power to the electrochemical cell facilitates reduction of protons to produce hydrogen on the cathode side. A membrane separating the anode side from the cathode side prevents flow of hydrogen sulfide and sulfur from passing through the membrane while allowing hydrogen cations to pass through the membrane. Sulfur is flowed out of the anode side. Hydrogen is flowed out of the cathode side.

    HYDROGEN SULFIDE CONVERSION
    10.
    发明公开

    公开(公告)号:US20240133049A1

    公开(公告)日:2024-04-25

    申请号:US17969448

    申请日:2022-10-18

    CPC classification number: C25B1/04 C01B17/79 C25B9/19 C25B13/07 C25B15/081

    Abstract: Power is provided to an electrochemical cell. The electrochemical cell includes an anode side and a cathode side. A solution is flowed to the anode side. The solution includes hydrogen sulfide dissolved in water. Water is flowed to the cathode side. The water flowed to the cathode side can be in the form of steam. Providing power to the electrochemical cell facilitates production of sulfur dioxide on the anode side. Providing power to the electrochemical cell facilitates production of hydrogen on the cathode side. A membrane separating the anode side from the cathode side prevents flow of hydrogen sulfide, water, and sulfur dioxide from passing through the membrane while allowing hydrogen cations and oxygen anions to pass through the membrane. Sulfur dioxide is flowed out of the anode side. Hydrogen is flowed out of the cathode side.

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