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    PLASMA PROCESS TO CONVERT SPENT POT LINING (SPL) TO INERT SLAG, ALUMINUM FLUORIDE AND ENERGY
    1.
    发明申请
    PLASMA PROCESS TO CONVERT SPENT POT LINING (SPL) TO INERT SLAG, ALUMINUM FLUORIDE AND ENERGY 审中-公开

    公开(公告)号：WO2021189133A1

    公开(公告)日：2021-09-30

    申请号：PCT/CA2021/050377

    申请日：2021-03-22

    Applicant: PYROGENESIS CANADA INC.

    Inventor： GAGNON, Jean-René ,  SHAHVERDI, Ali ,  RIVARD, François ,  PICARD, François ,  CARABIN, Pierre

    IPC: B09B3/00 ,  C01B3/32 ,  C22B7/00 ,  C25C7/06 ,  F27B3/08 ,  F27D15/00 ,  F27D17/00 ,  H05H1/48 ,  C22B21/00 ,  C25C3/06

    Abstract: Apparatus for converting Spent Pot Lining (SPL) into inert slag, aluminum fluoride and energy includes a plasma arc furnace such that the destruction of SPL occurs therein. The furnace generates an electric arc within the waste, which arc travels from an anode to a cathode and destroys the waste due to the arc's extreme temperature, thereby converting a mineral fraction of SPL into vitrified inert slag lying within a crucible of the furnace. The furnace gasifies the carbon content of the SPL and produces a well-balanced syngas. The gasification takes place due to the controlled intake of air and steam into the furnace. The gasification reaction liberates a significant amount of energy. Steam captures this excess energy, to provide part of the oxygen requirement for gasification and to contribute to raise the syngas H2 content. Steam also contributes to converting some SPL fluorides (NaF and Al2F3) into hydrogen fluoride. The plasma SPL processing system is compact (occupying less area than some competitive methods of SPL treatment), can be installed in close proximity to the aluminium plant (minimizing transportation of SPL and AlF3), and requires only electricity as its energy source and thus no fossil fuels.

    NON-WATER COOLED CONSUMABLE ELECTRODE VACUUM ARC FURNACE FOR CONTINUOUS PROCESS
    2.
    发明申请
    NON-WATER COOLED CONSUMABLE ELECTRODE VACUUM ARC FURNACE FOR CONTINUOUS PROCESS 审中-公开

    公开(公告)号：WO2020243812A1

    公开(公告)日：2020-12-10

    申请号：PCT/CA2020/000067

    申请日：2020-06-08

    Applicant: PYROGENESIS CANADA INC.

    Inventor： SHAHVERDI, Ali ,  CARABIN, Pierre ,  GAGNON, Jean-René

    IPC: F27D11/10 ,  F27B14/08 ,  F27B3/08 ,  F27B3/10

    Abstract: A consumable electrode vacuum arc furnace and, more particularly, a direct current consumable electrode vacuum arc furnace is provided, wherein no water cooling is needed to cool down typically neither the electrodes, nor any other parts of the furnace, and this includes the shell, the flanges ports and the electrical connections of the furnace. The present furnace uses non-metallic electrodes, such as graphite electrode, which are suitable for melting metals, smelting of metal ores, and metal oxide to elemental metal where the use of graphite electrodes is a common practice. The present furnace and electrode assemblies render possible to perform a true continuous process of melting and smelting under controlled pressure.

    HYDROGEN PRODUCTION FROM HYDROCARBONS BY PLASMA PYROLYSIS
    3.
    发明申请
    HYDROGEN PRODUCTION FROM HYDROCARBONS BY PLASMA PYROLYSIS 审中-公开

    公开(公告)号：WO2022087708A1

    公开(公告)日：2022-05-05

    申请号：PCT/CA2021/000099

    申请日：2021-11-01

    Applicant: PYROGENESIS CANADA INC.

    Inventor： PICARD, François ,  SHAHVERDI, Ali ,  CARABIN, Pierre

    IPC: C01B3/24 ,  B01D53/047 ,  C01B3/02 ,  C01B32/00 ,  C01B32/205

    Abstract: A method for producing hydrogen and carbon powder from the plasma pyrolysis of hydrocarbons is disclosed and includes a DC n on-transferred electric arc plasma torch, a hot-wall reactor, for example lined with refractory or a graphite (slippery material), and a cyclone. The cyclone is adapted to recover heavier carbon particles and allow part of the hydrogen, unconverted hydrocarbon and lighter carbon particles to be recycled to the reactor to improve the overall yield of hydrogen. The prolonged contact with the plasma plume provides a typically complete conversion to hydrogen and carbon powder due to the hot walls of the reactor. The carbon powder leaving the plasma plume solidifies into a graphite- like powder in the reactor. A turbulence inside the reactor is adapted to prevent the buildup of soot on a reactor surface via the recycling of hydrogen, hydrocarbon gas or carbon powder or a mix of thereof to the reactor.

    NANO-SILICON PARTICLES/WIRE PRODUCTION BY ARC FURNACE FOR RECHARGEABLE BATTERIES
    4.
    发明申请
    NANO-SILICON PARTICLES/WIRE PRODUCTION BY ARC FURNACE FOR RECHARGEABLE BATTERIES 审中-公开

    公开(公告)号：WO2021068054A1

    公开(公告)日：2021-04-15

    申请号：PCT/CA2020/000117

    申请日：2020-10-09

    Applicant: PYROGENESIS CANADA INC.

    Inventor： MARDAN, Milad ,  SHAHVERDI, Ali ,  CARABIN, Pierre

    IPC: C01B33/021 ,  C30B23/06 ,  C30B25/10 ,  C30B29/06 ,  H01M4/1395

    Abstract: A process and an apparatus using pure silicon as raw material with no other pre- processed material for producing nano-Silicon and/or nano-Silicon-carbon coated composite material in the form of particles, nanowires or a combination of both, for use in a high capacity and high energy efficiency manufacturing of anodes for Lithium-ion batteries. The apparatus comprises a reactor including at least one electrode and adapted to provide at least one arc, e.g. a DC transferred arc, for melting and vaporizing silicon provided in the reactor. A quenching system is provided for delivering a gas for quenching, in the reactor, the so-produced silicon vapour so as to form nano particles and/or nano wires. The reactor is under vacuum. The gas can be injected by a vortex and/or via the electrode that is hollow. The electrode is consumable and vertically movable to control an arc voltage and to compensate for electrode erosion.

    NON-WATER COOLED CONSUMABLE ELECTRODE VACUUM ARC FURNACE FOR CONTINUOUS PROCESS
    6.
    发明申请
    NON-WATER COOLED CONSUMABLE ELECTRODE VACUUM ARC FURNACE FOR CONTINUOUS PROCESS 审中-公开

    公开(公告)号：WO2020243812A8

    公开(公告)日：2020-12-10

    申请号：PCT/CA2020/000067

    申请日：2020-06-08

    Applicant: PYROGENESIS CANADA INC.

    Inventor： SHAHVERDI, Ali ,  CARABIN, Pierre ,  GAGNON, Jean-René

    IPC: F27D11/10 ,  F27B14/08 ,  F27B3/08 ,  F27B3/10

    Abstract: A consumable electrode vacuum arc furnace and, more particularly, a direct current consumable electrode vacuum arc furnace is provided, wherein no water cooling is needed to cool down typically neither the electrodes, nor any other parts of the furnace, and this includes the shell, the flanges ports and the electrical connections of the furnace. The present furnace uses non-metallic electrodes, such as graphite electrode, which are suitable for melting metals, smelting of metal ores, and metal oxide to elemental metal where the use of graphite electrodes is a common practice. The present furnace and electrode assemblies render possible to perform a true continuous process of melting and smelting under controlled pressure.

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