Combustion chamber design for a quench gasifier

    公开(公告)号:US07090707B1

    公开(公告)日:2006-08-15

    申请号:US09482023

    申请日:2000-01-13

    Abstract: A new combustion chamber design for a quench gasifier. Electrical heating is used in the throat area of the combustion chamber to achieve temperatures up to 3500° F. to melt ash deposits and to increase carbon conversion (reduce soot production). Silicon carbide and/or silicon nitride refractory materials are used in the hot face of the throat to withstand high temperatures and high temperature shocks. The proposed design reduces the capital cost of a gasification plant by eliminating the need for soot recovery and recycle system. This design also reduces the operating cost of the gasification plant by decreasing the frequent refractory damages that have been experienced in the throat area of the existing quench gasifiers.

    Apparatus and process for controlling fluidized beds
    25.
    发明授权
    Apparatus and process for controlling fluidized beds 失效
    用于控制流化床的设备和方法

    公开(公告)号:US4544375A

    公开(公告)日:1985-10-01

    申请号:US555047

    申请日:1983-11-25

    Abstract: An apparatus and process for control and maintenance of fluidized beds under non-steady state conditions. An ash removal conduit is provided for removing solid particulates from a fluidized bed separate from an ash discharge conduit in the lower portion of the grate supporting such a bed. The apparatus and process of this invention is particularly suitable for use in ash agglomerating fluidized beds and provides control of the fluidized bed before ash agglomeration is initiated and during upset conditions resulting in stable, sinter-free fluidized bed maintenance.

    Abstract translation: 在非稳态条件下控制和维护流化床的装置和方法。 提供了除灰管道,用于从支撑这种床的炉排下部的排灰管排出的流化床中除去固体颗粒。 本发明的装置和方法特别适用于灰分聚集流化床,并且在灰分附聚开始之前和在不稳定条件下提供对流化床的控制,从而产生稳定的无烧结的流化床维护。

    Fluidized bed gasification ash reduction and removal process
    26.
    发明授权
    Fluidized bed gasification ash reduction and removal process 失效
    流化床气化除灰除渣过程

    公开(公告)号:US4486199A

    公开(公告)日:1984-12-04

    申请号:US531791

    申请日:1983-09-13

    Abstract: In a fluidized bed gasification system an ash removal system to reduce the particulate ash to a maximum size or smaller, allow the ash to cool to a temperature lower than the gasifier and remove the ash from the gasifier system. The system consists of a crusher, a container containing level probes and a means for controlling the rotational speed of the crusher based on the level of ash within the container.

    Abstract translation: 在流化床气化系统中,灰尘去除系统将颗粒灰减至最大尺寸或更小,允许灰分冷却到低于气化器的温度,并从气化器系统中除去灰分。 该系统包括破碎机,容纳液位探针的容器和用于基于容器内的灰分水平来控制破碎机的转速的装置。

    Fluidized bed gasifier or similar device for simultaneous classification
of ash and unreacted coal
    27.
    发明授权
    Fluidized bed gasifier or similar device for simultaneous classification of ash and unreacted coal 失效
    流化床气化器或类似装置,用于同时分类灰分和未反应的煤

    公开(公告)号:US4416857A

    公开(公告)日:1983-11-22

    申请号:US408226

    申请日:1982-08-16

    Applicant: Karl S. Vorres

    Inventor: Karl S. Vorres

    Abstract: An apparatus for withdrawing agglomerated solids, e.g. ash, from a fluidized bed of finely divided solid hydrocarbonaceous material, e.g. coal, is described. Agglomeration is effected by a high temperature reaction between the inorganic constituents of the hydrocarbonaceous material in the fluidized bed environment. A venturi is utilized to serve as a passage for withdrawing the agglomerated solids from the fluidized bed. Spiral or other descending ridges are positioned on the interior surface of the constricted cylindrical opening of the venturi. A tube, through which reaction gases pass, is centrally disposed within the constricted cylindrical opening to permit variable and increased rates of agglomerate discharge with improved separation and classification of the solid materials.

    Abstract translation: 用于抽出附聚固体的装置,例如, 来自细分散的固体含烃材料的流化床,例如, 煤,被描述。 聚集通过在流化床环境中的烃类材料的无机成分之间的高温反应来实现。 文丘里管用作用于从流化床抽出附聚固体的通道。 螺旋或其他下降的脊定位在文丘里管的缩小的圆柱形开口的内表面上。 反应气体通过的管中心地设置在收缩的圆柱形开口内,以允许可变和增加的团聚体排出速率,同时具有改进的固体材料的分离和分类。

    Fluidized bed reactor apparatus and related gasification system
    29.
    发明授权
    Fluidized bed reactor apparatus and related gasification system 失效
    流化床反应器装置及相关气化系统

    公开(公告)号:US4359326A

    公开(公告)日:1982-11-16

    申请号:US208762

    申请日:1980-11-20

    Abstract: A process and pressurized, gasification reactor apparatus for converting combustible carbon containing materials such as coal char and other carbonaceous solids or carbonaceous solids/heavy oil combinations to an intermediate heating value fuel gas. The gasification reactor includes an insulated fluidized bed reactor chamber, an upper reactor housing for a freely suspended bayonet bundle type heat exchanger for (a) superheating incoming saturated steam and (b) cooling outgoing high temperature product gas, and a lower reactor housing structure which includes a free-floating, conically-shaped perforated plenum chamber. The superheated steam and oxygen are premixed with the plenum chamber before being pressure directed into the fluidized bed reactor chamber for mixture and combustion with the incoming combustible carbon containing materials such as coal char. After reaction of the superheated steam, oxygen and coal char in the fluidized bed reactor at temperatures ranging from 900.degree. F. to 1750.degree. F., the product fuel gases and associated particulate matter are cooled by steam flowing through the bayonet heat exchanger, the steam being superheated by this exchange. After discharge from the heat exchanger, the fuel gas product containing particulate matter is pressure directed into a conventional cyclone separator for (a) separation of the desired product gases and (b) return of the particulate matter for further recycling in the reactor chamber. Undesirable ash clinkers are gravitationally and pressure directed out of the reactor chamber through a central ash withdrawal pipe.

    Abstract translation: 一种工艺和加压气化反应器装置,用于将含有可燃碳的物质如煤焦炭和其他碳质固体或碳质固体/重油组合转化成中间热值燃料气体。 气化反应器包括绝热流化床反应器室,用于(a)过热进入的饱和蒸汽和(b)冷却输出的高温产物气体的自由悬挂卡口式热交换器的上反应器壳体和下反应器壳体结构, 包括一个自由浮动的锥形穿孔增压室。 将过热蒸汽和氧气与增压室预混合,然后将压力引导到流化床反应器室中,以与进入的可燃碳的材料如煤焦混合和燃烧。 过热蒸汽,氧气和煤焦在900°F至1750°F的温度下在流化床反应器中反应后,产品燃料气体和相关颗粒物质通过穿过卡口式热交换器的蒸汽冷却, 蒸汽被这种交换过热。 在从热交换器排出之后,含有颗粒物质的燃料气体产物被压力导入常规旋风分离器,用于(a)分离所需产物气体和(b)颗粒物质的返回以在反应器室中进一步再循环。 不希望的灰渣通过中央灰渣抽出管被重力压力引导出反应室。

    Integral vapor generator/gasifier system
    30.
    发明授权
    Integral vapor generator/gasifier system 失效
    积分蒸气发生器/气化炉系统

    公开(公告)号:US4336769A

    公开(公告)日:1982-06-29

    申请号:US249565

    申请日:1981-03-31

    Inventor: Ernest L. Daman

    Abstract: An integral generator/gasifier system in which a vapor generator is provided that includes an upright furnace section and a plurality of nozzles, each having one end registering with the interior of the furnace section. A gasifier extends adjacent to the furnace section and supports a bed of adsorbent material for the sulfur generated as a result of the gasification of fuel introduced to the gasifier. Air is passed through the bed of adsorbent material to fluidize said material so that, upon gasification of the fuel, a substantially sulfur-free product gas is produced. The other ends of the nozzles communicate with the gasifier so that the product gas passes from the gasifier through the nozzles and into the furnace section for combustion.

    Abstract translation: 一种整体式发电机/气化炉系统,其中提供蒸汽发生器,其包括立式炉段和多个喷嘴,每个喷嘴具有与炉段内部对准的一端。 气化器邻近炉段延伸延伸,并支撑用于由引入气化器的燃料气化而产生的硫的吸附材料床。 空气通过吸附材料床以使所述材料流化,使得在燃料气化时,产生基本上无硫的产物气体。 喷嘴的另一端与气化器连通,使得产物气体从气化器通过喷嘴并进入炉段进行燃烧。

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