公开(公告)号：US20210229170A1

公开(公告)日：2021-07-29

申请号：US16972949

申请日：2019-06-06

Applicant: PYROGENESIS CANADA INC.

Inventor： François PROULX ,  Christopher Alex DORVAL DION ,  Pierre CARABIN

IPC: B22F1/00 ,  B22F9/08 ,  B22F9/14 ,  H05H1/26 ,  H05H1/52 ,  H05H1/46

Abstract: The present application relates to a plasma atomization process and apparatus for producing metallic powders from at least one wire/rod feedstock. In the process, an electric arc is applied to the at least one wire/rod feedstock to melt the same. A plasma torch is employed to generate a supersonic plasma stream at an apex at which the electric arc is transferred to the at least one wire/rod feedstock to atomize the molten wire/rod feedstock into particles. A downstream cooling chamber solidifies the particles into the metallic powders. An anti-satellite diffuser is employed to prevent recirculation of the powders in order to avoid satellite formation. In an apparatus where two wires are fed, one wire serves as an anode, and the other as a cathode.

公开(公告)号：US20210114104A1

公开(公告)日：2021-04-22

申请号：US16981692

申请日：2019-03-18

Applicant: PYROGENESIS CANADA INC.

Inventor： Bernard ALLARD ,  Pierre CARABIN ,  Christopher Alex DORVAL DION ,  Milad MARDAN ,  François PROULX

IPC: B22F9/14 ,  B22F1/00 ,  B22F9/08

Abstract: An apparatus for producing metallic powders from molten feedstock includes a heating source for melting a solid feedstock into a molten feed, and a crucible for containing the molten feed. A liquid feed tube is also provided to feed the molten feed as a molten stream. A plasma source delivers a plasma stream, with the plasma stream being adapted to be accelerated to a supersonic N velocity and being adapted : to then impact the molten stream for producing metallic powders. The feed tube extends from the crucible to a location where a supersonic plasma plume atomizes the molten stream. The plasma source includes at least two plasma torches provided with at least one supersonic nozzle aimed towards the molten stream. The multiple plasma torches are disposed symmetrically about the location where the supersonic plasma plumes atomize the molten stream, such as in a ring-shaped configuration

公开(公告)号：US20200239980A1

公开(公告)日：2020-07-30

申请号：US16755106

申请日：2018-10-15

Applicant: PYROGENESIS CANADA INC.

Inventor： Pierre CARABIN ,  William KREKLEWETZ ,  Ali SHAHVERDI ,  Hugo FORTIN-BLANCHETTE

IPC: C22B9/22 ,  H05B7/18 ,  F27D7/06 ,  F27D11/10 ,  F27D17/00 ,  C10J3/72 ,  C10J3/74

Abstract: An apparatus for the gasification and vitrification of waste comprises a plasma arc furnace provided with two movable graphite electrodes. The furnace includes an air-cooled bottom electrode adapted for transferring the current through a slag melt. The furnace is entirely sealed and is also provided with gas tight electrode seals adapted to control reducing conditions inside the furnace. An electrical circuit is further provided, which is adapted for switching from transferred io non-transferred modes of heating, thereby allowing the furnace to be restarted in case of slag freezing.

公开(公告)号：US20180237306A1

公开(公告)日：2018-08-23

申请号：US15750331

申请日：2016-08-08

Applicant: PYROGENESIS CANADA INC.

Inventor： Ali SHAHVERDI ,  Pierre CARABIN

IPC: C01B33/033 ,  C01B33/025

CPC classification number: C01B33/033 ,  C01B33/023 ,  C01B33/025 ,  F27B3/08

Abstract: An apparatus and a process for the production of high purity silicon from silica containing material such as quartz or quartzite, using a vacuum electric arc furnace, are disclosed.

公开(公告)号：US20150382441A1

公开(公告)日：2015-12-31

申请号：US14768090

申请日：2014-02-17

Applicant: Pyrogenesis Canada Inc.

Inventor： Lakshminarayana Mydala Prahlada RAO ,  Jocelyn REMILLARD ,  Pierre CARABIN

IPC: H05H1/42 ,  H05H1/34 ,  H05H1/36 ,  H05H1/28

CPC classification number: H05H1/42 ,  H05H1/28 ,  H05H1/34 ,  H05H1/36 ,  H05H2001/3426 ,  H05H2001/3468

Abstract: A high power DC steam plasma torch system (S) includes a steam plasma torch assembly (1) wherein superheated steam (46) is used as the main plasma forming gas, thereby resulting in a very reactive steam plasma plume. The superheated steam (46) is injected internally directly into the plasma plume via a ceramic lined steam feed tube (25) for reducing condensation of steam before reaching the plasma plume. The superheated steam (46) flows through a gas vortex (16) which has tangentially drilled holes thereby resulting in a high speed gas swirl that minimizes electrode erosion. In the present steam plasma torch system (S), the plasma torch assembly (1) is ignited using an ignition contactor which is housed external to the plasma torch assembly (1). The superheated steam (46) is injected into the plasma plume using a water cooled steam vortex generator assembly (15).

Abstract translation: 高功率DC蒸汽等离子体焰炬系统（S）包括蒸汽等离子体炬组件（1），其中过热蒸汽（46）用作主等离子体形成气体，从而导致非常反应的蒸气等离子体羽流。 过热蒸汽（46）通过陶瓷内衬蒸汽进料管（25）内部直接注入到等离子体羽流中，用于在到达等离子体羽流之前减少蒸汽冷凝。 过热蒸汽（46）流过具有切向钻孔的气体涡流（16），从而导致高速气体涡流，使电极腐蚀最小化。 在本蒸汽等离子体焰炬系统（S）中，使用位于等离子体焰炬组件（1）外部的点火式接触器来点燃等离子炬组件（1）。 使用水冷蒸汽涡流发生器组件（15）将过热蒸汽（46）注入到等离子体羽流中。

公开(公告)号：US20150028258A1

公开(公告)日：2015-01-29

申请号：US14264886

申请日：2014-04-29

Applicant: PYROGENESIS CANADA INC.

Inventor： Pierre CARABIN ,  Peter George TSANTRIZOS

IPC: C10J3/18 ,  C10J3/84 ,  C10J3/72

CPC classification number: C10J3/18 ,  C10J3/466 ,  C10J3/57 ,  C10J3/721 ,  C10J3/845 ,  C10J2200/12 ,  C10J2300/094 ,  C10J2300/095 ,  C10J2300/1238 ,  C10J2300/1634 ,  C10J2300/1807

Abstract: A two-step gasification process and apparatus for the conversion of solid or liquid organic waste into clean fuel, suitable for use in a gas engine or a gas burner, is described. The waste is fed initially into a primary gasifier, which is a graphite arc furnace. Within the primary gasifier, the organic components of the waste are mixed with a predetermined amount of air, oxygen or steam, and converted into volatiles and soot. The volatiles consist mainly of carbon monoxide and hydrogen, and may include a variety of other hydrocarbons and some fly ash. The gas exiting the primary gasifier first passes through a hot cyclone, where some of the soot and most of the fly ash is collected and returned to the primary gasifier. The remaining soot along with the volatile organic compounds is further treated in a secondary gasifier where the soot and the volatile compounds mix with a high temperature plasma jet and a metered amount of air, oxygen or steam, and are converted into a synthesis gas consisting primarily of carbon monoxide and hydrogen. The synthesis gas is then quenched and cleaned to form a clean fuel gas suitable for use in a gas engine or a gas burner. This offers higher thermal efficiency than conventional technology and produces a cleaner fuel than other known alternatives.

Abstract translation: 描述了用于将固体或液体有机废物转化成适用于燃气发动机或气体燃烧器的清洁燃料的两步骤气化方法和装置。 将废物最初进料到主气化炉中，该气化炉是石墨电弧炉。 在主要气化器内，废物的有机组分与预定量的空气，氧气或蒸汽混合，并转化成挥发物和烟灰。 挥发物主要由一氧化碳和氢气组成，可能包括各种其他烃类和一些飞灰。 离开主要气化器的气体首先通过热旋风分离器，其中一些烟灰和大部分飞灰被收集并返回到主气化器。 剩余的烟灰与挥发性有机化合物一起在二次气化器中进一步处理，其中烟灰和挥发性化合物与高温等离子体射流和计量的空气，氧气或蒸汽混合，并转化为主要组成的合成气 的一氧化碳和氢气。 然后将合成气淬火和清洁以形成适用于燃气发动机或气体燃烧器的清洁燃料气体。 这比传统技术提供更高的热效率，并且产生比其他已知替代品更清洁的燃料。