COOLING SCREEN WITH VARIABLE TUBE DIAMETER FOR HIGH GASIFIER POWER

    公开(公告)号:US20190194560A1

    公开(公告)日:2019-06-27

    申请号:US16327845

    申请日:2017-08-28

    IPC分类号: C10J3/76 C10J3/48

    摘要: A liquid-cooled cooling screen for an entrained-flow gasifier for gasification of fuels in dust or liquid form using a gasifier agent containing free oxygen, at pressures between atmospheric pressure and 8 MPa and gasification temperatures between 1200 and 1900° C. The liquid-cooled cooling screen of which the cooling pipes in the central cylindrical section have thinner walls than the cooling pipes in the lower and upper conical sections. A cooling screen design has sufficient strength under high pressure difference over the cooling screen wall, a pipe wall thickness which ensures reliable operation of the cooling screen and high heat throughput, and pressure equalization between the cooling screen gap and the reaction chamber under all operating circumstances.

    Divided central tube of a combined quenching and scrubbing system for an entrained flow gasification reactor
    3.
    发明授权
    Divided central tube of a combined quenching and scrubbing system for an entrained flow gasification reactor 有权
    用于夹带流气化反应器的组合淬火和洗涤系统的分中心管

    公开(公告)号:US09434897B2

    公开(公告)日:2016-09-06

    申请号:US14491041

    申请日:2014-09-19

    IPC分类号: C10K1/02 C10K1/08 C10K1/10

    CPC分类号: C10K1/02 C10K1/08 C10K1/101

    摘要: Devices for a three-stage scrubbing system for treatment of hot crude gases and liquid slag by an entrained flow gasification. Crude gas and slag are conducted downward into a water bath in a central tube. The upper part of the central tube consists of a double-threaded tube screen welded in a gas-tight manner, in which water is injected directly as the first scrubbing and cooling stage in the interior thereof. In the water bath, a bubble column is formed, which simultaneously constitutes the second scrubbing and cooling stage. Surface bodies arranged in three layers increase the scrubbing effect. After leaving the bubble column, the crude gas is again sprayed with water in a cavity, wherein one or more nozzle rings are disposed. This forms the third scrubbing stage. The crude gas then leaves the quenching and scrubbing apparatus in steam-saturated form at 200-220° C. and is sent to further treatment.

    摘要翻译: 用于通过夹带流动气化处理热粗气体和液态炉渣的三级洗涤系统的装置。 将粗气体和炉渣向下导入中央管中的水浴中。 中心管的上部由以气密方式焊接的双螺纹管屏幕组成,其中水直接作为其内部的第一洗涤和冷却阶段被注入。 在水浴中,形成气泡塔,同时构成第二洗涤和冷却阶段。 排列成三层的表面体会增加洗刷效果。 在离开泡罩塔后,再次在空腔中喷洒粗气体,其中设置一个或多个喷嘴环。 这形成第三个洗涤阶段。 然后,粗气体在200-220℃下以蒸汽饱和的形式离开淬火和洗涤装置,并进一步处理。

    RAW GAS QUENCHING SYSTEM
    6.
    发明申请

    公开(公告)号:US20190225898A1

    公开(公告)日:2019-07-25

    申请号:US16336559

    申请日:2017-09-12

    IPC分类号: C10J3/84 C10J3/48 B01D47/06

    摘要: A raw gas washing system with a high degree of deposition of dust in an entrained flow gasification device for the conversion of ash-containing fuels by a gasification device containing free oxygen into a raw gas with a high proportion of hydrogen, in which the fuel is converted in a gasification reactor at temperatures of between 1200 and 1900° C. and method pressures of up to 10 MPa into raw gas and liquid slag. A quenching space designed as a free-space quench contains an additional washing ring which causes a direct-current washing of the quenched raw gas, reducing the particle loading of the raw gas in the raw gas output, thereby reducing subsequent raw gas purification steps.

    Combined quenching and scrubbing system with guide tube for an entrained flow gasifying reactor
    7.
    发明授权
    Combined quenching and scrubbing system with guide tube for an entrained flow gasifying reactor 有权
    用于夹带流气化反应器的导管的组合淬火和洗涤系统

    公开(公告)号:US09464248B2

    公开(公告)日:2016-10-11

    申请号:US14474611

    申请日:2014-09-02

    IPC分类号: C10K1/02 C10K1/06 C10K1/10

    CPC分类号: C10K1/02 C10K1/06 C10K1/101

    摘要: A three-stage quenching and scrubbing system for treatment of hot crude gases and liquid slag after an entrained flow gasification. In the first primary stage, cooling and scrubbing water is injected such that slag can no longer adhere to the wall of the central tube and the conversion reaction of the carbon monoxide with water vapor to give hydrogen can proceed to close to the equilibrium. A secondary quenching and scrubbing stage takes the form of a bubble column, and further cooling and the deposition of coarse dust and slag are effected in a water bath. The rest of the treatment is through intensive spraying in a tertiary quenching and scrubbing the gas stage, nozzle rings for deposition of fine slag and partly of fine dust. All three quenching and scrubbing stages enable cooling of the crude gas down to the water vapor dew point determined by the plant pressure.

    摘要翻译: 一种用于处理夹带气化后的热粗气体和液态渣的三级淬火和洗涤系统。 在第一个初级阶段,注入冷却和洗涤水,使得炉渣不再粘附到中心管的壁上,并且一氧化碳与水蒸汽的转化反应产生氢气可以进入接近平衡状态。 次级淬火和洗涤阶段采取气泡塔的形式,并进一步冷却和粗粉尘和炉渣的沉积在水浴中进行。 其余的处理是通过在三次淬火和擦洗气站中进行强烈喷涂,用于沉积细矿渣的喷嘴环和部分细粉尘。 所有三个淬火和洗涤阶段都能使粗气体冷却至由工厂压力确定的水汽露点。