REMOVAL OF SOOT IN A GASIFICATION SYSTEM
    94.
    发明公开
    REMOVAL OF SOOT IN A GASIFICATION SYSTEM 审中-公开
    炭黑从气化系统拆卸

    公开(公告)号:EP1135451A4

    公开(公告)日:2002-05-15

    申请号:EP99960322

    申请日:1999-11-12

    摘要: The raw syngas generated in a partial oxidation gasifier (2) also includes carbon soot which is removed and recovered from the syngas by scrubbing with water. The scrubbing water (4) contains one or more high temperature surfactants (6) which allow greater soot concentrations in the water-scrubbing quench zone of the gasifier (2). The carbon soot is separated from the scrubbing water (10) with the aid of a scrubbing oil. The separation of the carbon soot from the scrubbing water (10) is enhanced with the aid of one or more surfactants (6) that render the soot particles hydrophobic and oleophilic. The recovered carbon soot is ultimately recycled to the gasifier (2) to recover the energy value of the carbon during the partial oxidation reaction. The overall energy efficiency of the gasification process can be increased by removing all or a significant portion of the water from the soot mixture before recycling the soot. Separating the soot from the water allows for independent regulation of the soot and water recycle streams, depending on the reaction conditions in the gasifier (2).

    PROCESS FOR THE GASIFICATION OF CARBONACEOUS FUEL IN A FLUIDIZED BED GASIFIER
    95.
    发明公开
    PROCESS FOR THE GASIFICATION OF CARBONACEOUS FUEL IN A FLUIDIZED BED GASIFIER 有权
    方法气化碳燃料在流化床碳水化合物

    公开(公告)号:EP1165726A1

    公开(公告)日:2002-01-02

    申请号:EP00901645.2

    申请日:2000-01-24

    IPC分类号: C10J3/54 C10J3/16

    摘要: The invention relates to a process for the gasification of a carbonaceous fuel in a fluidized bed gasifier (1). In the process, a fuel (5), such as coal or peat, and a primary gasification gas (6, 7), such as air, are fed into the gasifier, and a product gas (10) is removed from the gasifier, the product gas being purified by separating fine-grained solid ingredients (16) therefrom. The solids fraction (16) which is separated from the product gas (16) and which contains unreacted carbon is fed together with a stoichiometric excess of air (27) into another fluidized bed reactor (20), which serves as an oxidizer, and the oxygen-containing gas (34) exiting from the oxidizer is directed to the fluidized bed gasifier (1) as a secondary gasification gas. By the increased oxidation, the carbon conversion in the process is increased and a residual ash with a low carbon content is produced.

    PROCESS FOR PYROLYSING CARBONACEOUS FEEDSTOCKS
    99.
    发明公开
    PROCESS FOR PYROLYSING CARBONACEOUS FEEDSTOCKS 有权
    碳饲料的方法解

    公开(公告)号:EP1060232A1

    公开(公告)日:2000-12-20

    申请号:EP99906280.5

    申请日:1999-02-26

    申请人: Fortum OYJ

    IPC分类号: C10J3/54 B01J8/26

    摘要: The present invention concerns a process and an apparatus for thermal conversion of biomass and organic wastes. According to the invention the feedstock is fed into a fluidized-bed reactor (1-3), wherein the feed is converted at an elevated temperature under the influence of particulate matter kept in a fluidized state by a fluidizing gas, the particulate matter is transferred from the reactor to a regenerator (24, 28, 29) for regeneration and then recirculated to the reactor after the regeneration, and the converted hydrocarbon products are recovered from the reactor. Both the reactor (1-3) and the regenerator comprise risers (13, 24) having an axially annular cross section and being equipped with multi-inlet cyclones (14, 17, 25, 26) for the separation of particulate matter. By means of the invention it is possible to produce pyrolysis oil, the quality of which is higher than that of oil produced with the processes of the prior art. The incorporation of multi-inlet cyclones into the reactor configuration reduces gas velocities, reduces the physical size of the cyclone and shortens the residence time of gases in the cyclone.

    VERFAHREN ZUM AUFARBEITEN VON BODENASCHEN AUS VERBRENNUNGSANLAGEN
    100.
    发明公开
    VERFAHREN ZUM AUFARBEITEN VON BODENASCHEN AUS VERBRENNUNGSANLAGEN 审中-公开
    法在后处理时GROUND ASH焚烧植物

    公开(公告)号:EP1047754A1

    公开(公告)日:2000-11-02

    申请号:EP99950381.6

    申请日:1999-10-19

    发明人: EDLINGER, Alfred

    IPC分类号: C10J3/54

    摘要: The invention relates to a method for processing bottom ash of incinerator plants, notably of thermal power plants and industrial furnaces, such as blast furnaces, converters, glass tanks or refuse incinerators. According to said method the bottom ashes are transmitted to a fluid-bed gasifier (1), possibly together with fly ash. The fluid-bed gasifier (1) is subjected to hot air, oxygen and/or countercurrent steam and used as crushing chamber (6). The gases withdrawn from the crushing chamber (6) or the fluid-bed gasifier (1) are guided over heat exchangers (9, 11), filtered and at least partly condensed. In the heat exchangers (9, 11) feed water for producing the steam of the countercurrent crusher is heated and supplied to an evaporator (14) and a superheater. The gases of the fluid-bed gasifier (1) which remain after partial condensation are burned to evaporate the feed water.