Process for treating gaseous emissions generated during production of carbon anodes in an aluminum plant
    1.
    发明授权
    Process for treating gaseous emissions generated during production of carbon anodes in an aluminum plant 有权
    用于处理在铝厂生产碳阳极时产生的气体排放的方法

    公开(公告)号:US06846472B2

    公开(公告)日:2005-01-25

    申请号:US10270620

    申请日:2002-10-16

    CPC分类号: F23G7/068 B01D53/685

    摘要: A process for treating gaseous emissions generated during the production of carbon anodes in the aluminum industry. In this process, first gaseous emissions generated during green anode preparation are collected and preheated by direct contact with a stream of combustion gases. Second gaseous emissions generated during anode baking are also collected and mixed with the first gaseous emissions to form a gaseous emission mixture. Alumina powder is then injected into the so obtained mixture and the resulting mixture with the alumina injected therein is processed into a dry scrubber that is equipped with a bag filter and is operating at temperatures well above the saturation temperature of tars, so as to obtain a gaseous mixture partially purified and free of fluorides and particulates. The so obtained partially purified gaseous mixture is then processed into an oxidation furnace in order to destroy all the organic compounds contained therein.

    摘要翻译: 一种处理在铝工业生产碳阳极时产生的气体排放的方法。 在此过程中,通过与燃烧气体流直接接触,收集并预热在绿色阳极制备期间产生的第一气态排放物。 在阳极烘烤期间产生的第二气体排放物也被收集并与第一气体排放物混合以形成气态发射混合物。 然后将氧化铝粉末注入如此获得的混合物中,将其中注入氧化铝的所得混合物加工成装有袋式过滤器的干洗涤器,并在远高于焦油饱和温度的温度下操作,以获得 气态混合物部分纯化,不含氟化物和微粒。 然后将如此获得的部分纯化的气体混合物加工成氧化炉,以破坏其中所含的所有有机化合物。

    Incineration of waste gases containing contaminant aerosols
    2.
    发明授权
    Incineration of waste gases containing contaminant aerosols 失效
    焚烧含有污染气溶胶的废气

    公开(公告)号:US06183707B2

    公开(公告)日:2001-02-06

    申请号:US08527591

    申请日:1995-09-13

    IPC分类号: B01D5300

    摘要: A method for treating waste gases contaminated with toxic or odorous compounds in the form of a mist using a regenerative incinerator system is provided. The contaminated waste gas is passed through a first regenerator so that the waste gas is heated by contact with the packing material contained therein. This hot contaminated waste gas is passed through a combustion chamber to oxidize the compounds in the waste gas. The hot treated waste gas is passed through another regenerator to cool the gas and heat the packing material contained therein. The cleaned gas is discharged. Part of the cleaned gas is heated and passed through the regenerator to volatilize and/or remove compounds remaining in the regenerator after passage of the waste gas, thereby cleaning the regenerator.

    摘要翻译: 提供了一种使用再生式焚烧炉系统处理以雾状形式的有毒或恶臭化合物污染的废气的方法。 污染的废气通过第一再生器,使得废气通过与其中包含的包装材料的接触而被加热。 这种热污染的废气通过燃烧室以氧化废气中的化合物。 经热处理的废气通过另一个再生器以冷却气体并加热其中所含的包装材料。 净化后的气体排出。 净化气体的一部分被加热并通过再生器,以在废气通过后挥发和/或除去残留在再生器中的化合物,从而清洁再生器。

    Incinerator
    3.
    发明授权
    Incinerator 失效
    焚烧炉

    公开(公告)号:US4246850A

    公开(公告)日:1981-01-27

    申请号:US21122

    申请日:1979-03-16

    IPC分类号: F23G5/16 F23J15/06 F23G5/12

    CPC分类号: F23G5/16 F23J15/06

    摘要: An incinerator for burning garbage has a combustion chamber and an after-burner chamber. The top wall of the combustion chamber has an open loading aperture therein. An air curtain of over-fire combustion air is provided below the loading aperture, to prevent exhaust of gases and suspended solids through the loading aperture, by means of a slot jet extending the length of the combustion chamber and directing a stream of air across the chamber. This air is also used as combustion air, along with under-fire air supplied to the bottom of the chamber and further air supplied to the after-burner chamber. Efficient combustion air flow patterns are established reducing the over-all requirement for combustion air in the incinerator of the invention.

    摘要翻译: 用于燃烧垃圾的焚化炉具有燃烧室和后燃烧室。 燃烧室的顶壁在其中具有开放的装载孔。 过载燃烧空气的空气幕设置在装载孔的下方,以防止气体和悬浮固体通过装载孔排出,借助延伸燃烧室长度的狭缝喷射并引导空气流穿过 房间。 这种空气也被用作燃烧空气,以及供应到室底部的低火空气,以及进一步供应到后燃烧室的空气。 建立了有效的燃烧空气流动模式,减少了本发明的焚烧炉中的燃烧空气的全部要求。

    Incineration of waste organic aerosols
    4.
    发明授权
    Incineration of waste organic aerosols 失效
    废弃有机气溶胶的焚烧

    公开(公告)号:US06673325B2

    公开(公告)日:2004-01-06

    申请号:US10133659

    申请日:2002-04-29

    申请人: Jean J. O. Gravel

    发明人: Jean J. O. Gravel

    IPC分类号: B01D5300

    CPC分类号: B01D53/72

    摘要: A process for treating a waste gas containing condensable organic compounds in the form of an aerosol of liquid particles, in a regenerative thermal oxidation system comprising a combustion chamber and at least two regenerators. During a first period of time, the waste gas is directed through a first one of the regenerators wherein the waste gas is heated by contact with a packing material contained therein, then through the combustion chamber wherein oxidation of the organic compounds contained in the waste gas is achieved and finally through a second regenerator wherein the oxidized gas coming from the combustion chamber is cooled by contact with a packing material contained in the second regenerator, such a contact causing simultaneous heating of the packing material contained in the second regenerator. The oxidized gas which leaves the second regenerator is then purified and may be discharged to the atmosphere. During a second period of time, the waste gas is directed through the second regenerator, then through the combustion chamber and finally through the first regenerator prior to discharging it in a purified form to the atmosphere. This process is improved in that the temperature of the waste gas is increased prior to introducing it into the first regenerator during the first period of time or into the second regenerator during the second period of time by mixing it with a stream of purified gas obtained by the process. As a result, a complete evaporation of all the liquid particles contained in the waste gas is achieved.

    摘要翻译: 一种在包括燃烧室和至少两个再生器的再生热氧化系统中处理含有液体颗粒气溶胶形式的可冷凝有机化合物的废气的方法。 在第一时间段期间,废气被引导通过第一个再生器,其中废气通过与包含在其中的填料材料接触而加热,然后通过燃烧室,其中包含在废气中的有机化合物的氧化 并且最后通过第二再生器,其中来自燃烧室的氧化气体通过与包含在第二再生器中的包装材料的接触而被冷却,这种接触引起同时加热包含在第二再生器中的包装材料。 然后离开第二再生器的氧化气体被净化并且可以排放到大气中。 在第二时间段内,废气通过第二再生器,然后通过燃烧室,最后通过第一再生器,然后以纯化的形式排放到大气中。 该方法的改进在于,在第一时间段内将废气进入第一再生器之前,或者在第二时间段期间,通过将废气与通过 的过程。 结果,实现废气中包含的所有液体颗粒的完全蒸发。