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    • 5. 发明授权
    • Method for abatement of mercury emissions from combustion gases
    • 减少燃烧气体汞排放的方法
    • US07052661B1
    • 2006-05-30
    • US10348112
    • 2003-01-21
    • Donald P. Malone
    • Donald P. Malone
    • C01G11/00C01G13/00C01G9/00B01D47/00B01J8/00
    • B01D53/64B01D53/04B01D53/12B01D2253/102B01D2257/602B01D2258/00B01D2259/40001
    • A process for removing mercury from a feed of coal, heavy oil or other mercury contaminated material is disclosed. The feed is thermally decomposed, preferably within, or above, a molten metal bath under reducing conditions, to produce a vapor product and non-vapor decomposition products, such as carbon, which dissolve in the molten metal bath. Mercury, primarily in the form of elemental metal vapor, is removed with the vapor product, cooled and passed over a mercury adsorbent to recover mercury from the gas. The decomposition products are burned, e.g., by at least periodic oxidation of the molten metal bath. Preferably a HyMelt® reactor, with a bath of molten iron, operating at superatmospheric pressure, thermally decomposes the feed. The process permits efficient mercury removal and recovery from coal using conventional adsorbents, such as activated carbon.
    • 公开了一种从煤,重油或其他汞污染物质的进料中除去汞的方法。 进料在还原条件下在熔融金属浴中热分解,优选在或高于熔融金属浴中,以产生溶解在熔融金属浴中的蒸气产物和非汽相分解产物如碳。 主要以元素金属蒸气形式的汞用蒸气产物除去,冷却并通过汞吸附剂以从气体中回收汞。 分解产物例如通过至少定期氧化熔融金属浴来燃烧。 优选地,具有在超大气压下操作的具有铁水浴的HyMelt反应器热分解进料。 该方法允许使用常规吸附剂例如活性炭从煤中有效除汞和回收。
    • 6. 发明授权
    • Sorbents and methods for the removal of mercury from combustion gases
    • 从燃烧气体中除去汞的吸附剂和方法
    • US06953494B2
    • 2005-10-11
    • US10430577
    • 2003-05-06
    • Sidney G. Nelson, Jr.
    • Sidney G. Nelson, Jr.
    • B01D53/04B01D53/06B01D53/08B01D53/64B01J20/20C22B43/00
    • B03C3/017B01D53/02B01D53/04B01D53/64B01D2253/102B01D2253/304B01D2257/602B01D2258/00B01D2259/40001B03C3/013Y10S95/901
    • A method for removing mercury and mercury-containing compounds from a combustion gas in an exhaust gas system has the steps of providing a mercury sorbent; injecting the mercury sorbent into a stream of the mercury-containing combustion gas for a sufficient time to allow at least an effective amount of the mercury and mercury-containing compounds in the combustion gas to adsorb onto the mercury sorbent, and collecting and removing the mercury sorbent from the combustion gas stream. The mercury sorbent is prepared by treating a carbonaceous substrate with an effective amount of a bromine-containing gas, especially one containing elemental bromine or hydrogen bromide, for a time sufficient to increase the ability of the carbonaceous substrate to adsorb mercury and mercury-containing compounds. The points of injecting and collecting and removing the mercury sorbent may be varied, depending upon the exact configuration of the exhaust gas system.
    • 从排气系统中的燃烧气体中除去汞和含汞化合物的方法具有提供汞吸附剂的步骤; 将汞吸附剂注入含汞燃烧气体流中足够的时间,以使至少有效量的燃烧气体中的汞和含汞化合物吸附到汞吸附剂上,并收集和除去汞 来自燃烧气流的吸附剂。 汞吸附剂通过用有效量的含溴气体,特别是含有元素溴或溴化氢的含碳气体处理足够的时间来提高碳质底物吸附汞和含汞化合物的能力来制备 。 取决于废气系统的确切配置,注入和收集和去除汞吸附剂的要点可能会有所不同。