Treatment of process gases containing halogenous compounds
    1.
    发明授权
    Treatment of process gases containing halogenous compounds 失效
    处理含有卤素化合物的工艺气体

    公开(公告)号:US5481063A

    公开(公告)日:1996-01-02

    申请号:US776403

    申请日:1991-11-22

    摘要: The present invention relates to a method of treating various chlorine-containing materials such as wastes, biological sludges and even metal concentrates in a circulating fluidized bed reactor (1) or a grate furnace at a high temperature of over 830.degree. C. and of cooling the resultant process gases for minimizing the amount of polyhalogenated aromatic compounds in the process gases. The process gases are cooled to a temperature below 250.degree. C. at a cooling velocity exceeding 1000.degree. C. per second. Cooling is preferably effected in a circulating fluidized bed reactor (2).

    摘要翻译: PCT No.PCT / FI90 / 00134 Sec。 371日期1991年11月22日 102(e)1991年11月22日日期PCT提交1990年5月16日PCT公布。 出版物WO90 / 14559 日本1990年11月29日。本发明涉及在循环流化床反应器(1)或高炉过程中的炉排炉中处理各种含氯物质如废物,生物污泥甚至金属浓缩物的方法。 并冷却所得到的工艺气体,以使工艺气体中的多卤代芳族化合物的量最小化。 将工艺气体以超过1000℃/秒的冷却速度冷却到低于250℃的温度。 冷却优选在循环流化床反应器(2)中进行。

    Apparatus for treating or utilizing a hot gas flow
    3.
    发明授权
    Apparatus for treating or utilizing a hot gas flow 失效
    用于处理或利用热气流的装置

    公开(公告)号:US5505907A

    公开(公告)日:1996-04-09

    申请号:US265041

    申请日:1994-06-22

    摘要: A method and apparatus for cooling hot gas in a reactor in which the lower section of the reactor is provided with an inlet for hot gas and a chamber encompassing a bubbling fluidized bed. A central section of the reactor is provided with a riser, and the upper section with a gas outlet, and the reactor has heat transfer surfaces for recovering heat from solid particles. The riser is defined by vertical walls which are disposed above the bubbling fluidized bed so that they divide the fluidized bed into concentric outer and inner parts. From the inner part of the fluidized bed solid particles are supplied to the hot inlet gas for cooling thereof. The gas containing solid particles is conveyed through the riser into the upper section of the reactor, where solid particles are separated from the gas in a particle separator and returned to the fluidized bed into the outer part thereof.

    摘要翻译: 一种用于冷却反应器中的热气体的方法和装置,其中反应器的下部设有用于热气体的入口和包围起泡流化床的室。 反应器的中心部分设置有提升管,上部具有气体出口,并且反应器具有用于从固体颗粒回收热量的传热表面。 提升管由设置在鼓泡流化床上方的垂直壁限定,使得它们将流化床分成同心的外部和内部部分。 从流化床的内部将固体颗粒供应到热入口气体以进行冷却。 含有固体颗粒的气体通过提升管输送到反应器的上部,其中固体颗粒与颗粒分离器中的气体分离并返回到流化床进入其外部部分。

    Method and apparatus for treating or utilizing a hot gas flow
    4.
    发明授权
    Method and apparatus for treating or utilizing a hot gas flow 失效
    用于处理或利用热气流的方法和装置

    公开(公告)号:US5634516A

    公开(公告)日:1997-06-03

    申请号:US569858

    申请日:1995-12-08

    摘要: A method and apparatus for cooling hot gas in a reactor which is provided with a mixing chamber for hot gas and a chamber encompassing a bubbling fluidized bed in the lower section of the reactor, a riser in the middle section, a gas outlet in the upper section of the reactor, and heat transfer surfaces for recovering heat from solid particles. The hot gas is introduced through the mixing chamber into the lower section of the reactor. In the mixing chamber solid particles are supplied to the hot gas for cooling the gas. The gas containing solid particles is conveyed into a separator. From the separator, the gas is conveyed through the riser into particle separators and, when purified, out of the reactor. The solid particles separated in the particle separator are returned to the lower section of the reactor, preferably both directly into the mixing chamber and into the fluidized bed. From the fluidized bed, cooled solid particles are conveyed to the mixing chamber for cooling of hot gas.

    摘要翻译: 一种用于冷却反应器中的热气体的方法和装置,该反应器设置有用于热气体的混合室和在反应器下部包围起泡流化床的室,中间部分中的提升管,上部的气体出口 反应器的截面和用于从固体颗粒回收热量的传热表面。 热气体通过混合室引入反应器的下部。 在混合室中,将固体颗粒供给到用于冷却气体的热气体。 含有固体颗粒的气体被输送到分离器中。 从分离器将气体通过提升管输送到颗粒分离器中,并且当被纯化时从反应器中排出。 在颗粒分离器中分离的固体颗粒返回到反应器的下部,优选直接进入混合室并进入流化床。 从流化床将冷却的固体颗粒输送到混合室以冷却热气。