TWO-STAGE PLASMA PROCESS FOR CONVERTING WASTE INTO FUEL GAS AND APPARATUS THEREFOR

    公开(公告)号:US20240240093A1

    公开(公告)日:2024-07-18

    申请号:US18451442

    申请日:2023-08-17

    摘要: 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.

    Plasma gasification reactor and method

    公开(公告)号:US10988699B2

    公开(公告)日:2021-04-27

    申请号:US15775773

    申请日:2016-11-11

    摘要: The invention is related to a reactor (1) comprising at least one temperature unit (20) which provides high temperature, at least one waste inlet (11) from which the fuel and/or wastes are fed to the reactor (1), at least one reactant inlet (13 and/or 14 and/or 17), at least one melt outlet (15) which provides exiting of the melts formed by inorganic substances coming from the fuel and/or wastes via heat, at least one high temperature region (12) where endothermic reactions occur and a gas outlet (16) which provides that the fuel and/or wastes entering to the reactor (1) are directed to the high temperature region (12) such that the gasification does not start before they enter to this region (12) and therefore, where the gases leaving the reactor (1) as a result of the reaction exit from the reactor (1) by passing through the high temperature region (12) and which has a different openness from the waste inlet (11); having a high temperature region (12) positioned between the waste inlet (11) and gas outlet (16), and body (10) which has a form providing that the wastes pass through the high temperature region (12) such that the gasification does not start before the fuel and/or wastes entering to the reactor (1) enter to the high temperature region (12) and therefore, that the gases having at least 1200° C. temperature exit from the reactor (1) and to the working method (100) of this reactor (1).

    TWO-STAGE PLASMA PROCESS FOR CONVERTING WASTE INTO FUEL GAS AND APPARATUS THEREFOR

    公开(公告)号:US20200048568A1

    公开(公告)日:2020-02-13

    申请号:US16657727

    申请日:2019-10-18

    摘要: 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.