Method for operating a fluidized bed apparatus and fluidized bed apparatus

    公开(公告)号:US11779895B2

    公开(公告)日:2023-10-10

    申请号:US17417372

    申请日:2021-02-19

    摘要: The present invention relates to a method for operating a fluidized bed apparatus and to a fluidized bed apparatus, the method comprising the following steps: providing particulate metal to a reaction chamber of a fluidized bed reactor, providing an oxidizing agent to a fluidizing bottom of the fluidized bed reactor such that particulate matter comprising the particulate metal is fluidized, wherein the particulate metal reacts with the oxidizing agent to particulate metal oxide, withdrawing particulate metal oxide from the reaction chamber, storing the withdrawn particulate metal oxide, providing particulate metal oxide to the reaction chamber of the fluidized bed reactor, providing a reducing agent containing gas to the fluidizing bottom of the fluidized bed reactor such that particulate matter comprising the particulate metal oxide is fluidized, wherein the particulate metal oxide reacts with the reducing agent to particulate metal, withdrawing the particulate metal from the reaction chamber, storing the withdrawn particulate metal.

    CIRCULAR FLUIDIZING BED COMBUSTION SYSTEM WITH UNIFORM AIRFLOW DISTRIBUTING DEVICE

    公开(公告)号:US20180195714A1

    公开(公告)日:2018-07-12

    申请号:US15563456

    申请日:2016-10-29

    摘要: A circular fluidizing bed combustion system with uniform airflow distributing device is provided. The system comprises a fluidizing bed and a uniform airflow distributing device. The fluidizing bed is comprised of a fluidizing bed boiler body, an airflow distributing plate and a plurality of air caps, wherein, the airflow distributing plate is provided inside the fluidizing bed boiler body and divides the inner space of the fluidizing bed boiler body into a fluidizing chamber which is located in the upper portion of the boiler body and an air chamber which is located in the lower portion of the boiler body, and the plurality of air caps are arranged on the airflow distributing plate for injecting the fluidizing air into the fluidizing chamber. The inner space of the air chamber is divided into a distributing chamber that is located under the airflow distributing plate and an air inlet chamber that is located on one side of the distributing chamber by means of a perforated plate. The distributing chamber is comprised of a front wall, two side walls, a top wall that extends upwards obliquely from the upside of the front wall, and a bottom wall extends downwards obliquely from the downside of the front wall. A first guide plate, a second guide plate and a third guide plate are installed in the distributing chamber. This system makes the flow of the fluidizing air entered into the fluidizing chamber through each air cap uniform, and enhances the combusting efficiency of the coal powder in the fluidizing chamber.

    Gasifier grid cooling safety system and methods
    6.
    发明授权
    Gasifier grid cooling safety system and methods 有权
    气化炉格栅冷却安全系统及方法

    公开(公告)号:US09421510B2

    公开(公告)日:2016-08-23

    申请号:US14210439

    申请日:2014-03-14

    发明人: John D. Winter

    摘要: An apparatus for cooling a gas distribution grid of fluidized bed gasifier and a method is provided in the present invention. The apparatus comprises a gas flow failure event detector for detecting a gasifying gas flow failure event, a flow control device for controlling the introduction of a flow stream of a liquid material into a spraying device placed in the plenum space of the gasifier, wherein the gas flow failure event detector is in signal connection with the flow control device, and a spraying device for spraying into the plenum space the liquid material as mist which evaporates and generates a positive pressure to cause through the gas distribution grid a flow which prevents the hot bed material from settling on the gas distribution grid.

    摘要翻译: 本发明提供了一种用于冷却流化床气化器的气体分配网格的装置和方法。 该装置包括用于检测气化气体流失故障事件的气体流动故障事件检测器,用于控制将液体材料的流动流引入放置在气化器的气室中的喷射装置中的流量控制装置,其中气体 流动故障事件检测器与流量控制装置信号连接,并且喷射装置用于喷射到气室中,液体材料作为雾状蒸发并产生正压,以通过气体分配网格流动,防止热床 气体分配网格上的材料。

    REACTOR SYSTEM AND SOLID FUEL COMPOSITE THEREFOR
    7.
    发明申请
    REACTOR SYSTEM AND SOLID FUEL COMPOSITE THEREFOR 审中-公开
    反应器系统和固体燃料组合物

    公开(公告)号:US20160208659A1

    公开(公告)日:2016-07-21

    申请号:US15085113

    申请日:2016-03-30

    IPC分类号: F01K25/10 F22B31/00 F02C1/04

    摘要: A reactor system includes a fluidized-bed. A fuel and a sulfur absorbent material are eluted through the fluidized-bed. The reactor system may include a heat exchanger having a heat-exchanging portion within a heating zone of the reactor that is hermetically sealed from the heating zone. The reactor may include loose particles of an inert bed material for forming the fluidized-bed. A feed system may be provided to inject a solid fuel composite that includes a mixture of a solid, carbonaceous fuel and a solid reagent into the reactor.

    摘要翻译: 反应器系统包括流化床。 燃料和硫磺吸收材料通过流化床洗脱。 反应器系统可以包括热交换器,该热交换器在反应器的加热区内具有与加热区气密密封的热交换部分。 反应器可以包括用于形成流化床的惰性床材料的松散颗粒。 可以提供进料系统以将包含固体,碳质燃料和固体试剂的混合物的固体燃料复合材料注入反应器。

    FLUIDIZED BED FURNACE AND WASTE TREATMENT METHOD
    10.
    发明申请
    FLUIDIZED BED FURNACE AND WASTE TREATMENT METHOD 审中-公开
    流化床炉和废物处理方法

    公开(公告)号:US20130098277A1

    公开(公告)日:2013-04-25

    申请号:US13805922

    申请日:2011-06-21

    摘要: A waste treatment technique includes: blowing a fluidizing gas from around a mixture discharge port to form a first fluidization region having a degree of fluidization of the fluidizable particles which is set to an extent allowing waste to be accumulated on fluidizable particles, while blowing a fluidizing gas between the first fluidization region and an opposite-side wall at a higher flow velocity to form a second fluid region having a degree of fluidization of fluidizable particles greater than that in the first fluidization region, whereby the fluidizable particles are mixed with the waste to gasify the waste; and supplying waste from a supply-side sidewall portion onto the fluidized bed to cause the waste to be accumulated on the first fluidization region while causing the accumulated waste to be moved into the second fluidization region step-by-step.

    摘要翻译: 废弃处理技术包括:从混合物排出口周围吹送流化气体,形成具有可流化颗粒的流化程度的第一流化区域,该第一流化区域被设定为允许废物积聚在可流化颗粒上的程度,同时吹送流化 第一流化区域和相对侧壁之间的气体以更高的流速形成具有大于第一流化区域中的可流化颗粒的流化程度的第二流体区域,由此可流化颗粒与废物混合 气化废物; 以及将废料从供给侧侧壁部分供给到流化床上,以使废物积聚在第一流化区域上,同时使积聚的废物逐步移动到第二流化区域中。