Method of processing desulfurization absorption liquid and apparatus therefor
    1.
    发明授权
    Method of processing desulfurization absorption liquid and apparatus therefor 有权
    脱硫吸收液处理方法及其设备

    公开(公告)号:US06254771B1

    公开(公告)日:2001-07-03

    申请号:US09355799

    申请日:1999-08-04

    IPC分类号: C02F124

    摘要: This invention relates to a method for the treatment of a desulfurization absorbing fluid after gas-liquid contact with combustion exhaust gas in which fine particles of unburned carbon and other materials are efficiently removed from the desulfurization absorbing fluid to improve the quality of a by-product (e.g., gypsum) obtained therefrom. The method of this invention comprises the steps of feeding a gas into a desulfurization absorbing fluid (A) containing fine particles of unburned carbon and other materials and thereby producing gas bubbles so as to cause the fine particles to adhere to the surfaces of the gas bubbles and create a foam phase (D) consisting of the gas bubbles; and breaking the foam phase (D) to obtain a liquid (E) containing the fine particles.

    摘要翻译: 本发明涉及一种在与燃烧废气接触气液之后处理脱硫吸收液的方法,其中将未燃碳和其它材料的细颗粒从脱硫吸收液中有效地除去以提高副产物的质量 (例如,石膏)。 本发明的方法包括以下步骤:将气体供给到含有未燃烧碳和其他材料的微粒的脱硫吸收液(A)中,由此产生气泡,以使细颗粒附着在气泡的表面 并产生由气泡组成的泡沫相(D); 并破坏泡沫相(D)以获得含有微粒的液体(E)。

    Combustion exhaust gas treatment system
    4.
    发明授权
    Combustion exhaust gas treatment system 失效
    燃烧废气处理系统

    公开(公告)号:US6113863A

    公开(公告)日:2000-09-05

    申请号:US592116

    申请日:1996-01-26

    摘要: Five combustion exhaust gas treatment systems capable of removing dust and selenium (Se) in combustion exhaust gas and making harmless are proposed: (1) combustion exhaust gas is cooled to 350.degree. C. or less, dust is separated, Se is transformed into insoluble compound, and Se is separated; (2) combustion exhaust gas is cooled to 350.degree. C. or less, dust is separated, Se elution preventive agent is added, and dust is formed into scale; (3) dust in combustion exhaust gas is collected by dust collector, dust is formed into slurry by making use of part of circulation liquid in desulfurization apparatus, and tetravalent Se in dust slurry is transformed into insoluble compound, which is separated into solid and liquid; (4) dust is separated from combustion exhaust gas by dust collector, and it is heated to gasify Se, and is led into desulfurization apparatus, etc., and formed into slurry, and Se is made into insoluble compound; and (5) a treating agent for making tetravalent Se insoluble is added to part of circulation liquid in desulfurization apparatus, and it is sprayed into combustion exhaust gas to make Se insoluble.

    摘要翻译: 提出了能够除去燃烧废气中的灰尘和硒(Se),无害化的五种燃烧废气处理系统:(1)燃烧废气冷却至350℃以下,灰尘分解, 化合物,Se分离; (2)燃烧废气冷却至350℃以下,粉尘分离,加入Se洗脱剂,灰尘形成规模; (3)燃烧废气中的灰尘由集尘器收集,利用脱硫装置中循环液的一部分形成粉尘,并将粉尘浆中的四价硒转化为不溶性化合物,分离成固体和液体 ; (4)灰尘通过集尘器与燃烧废气分离,并被加热气化Se,并被引入脱硫装置等,形成浆料,Se成不溶性化合物; (5)在脱硫装置的一部分循环液中加入四价Se不溶性的处理剂,喷入燃烧废气中使Se不溶。

    Flue gas treatment system
    6.
    发明授权
    Flue gas treatment system 失效
    烟气处理系统

    公开(公告)号:US5756052A

    公开(公告)日:1998-05-26

    申请号:US769633

    申请日:1996-12-18

    CPC分类号: B01D53/64 B01D53/501

    摘要: A flue gas treatment system is provided for which is capable of easily treating Se contained in flue gas, comprising an extractor 13 for extracting soluble components in the dust removed by a dry-type dust precipitator 5 into water to slurry the dust; insolubilizer supply 16 for supplying an insolubilizer for insolubilizing at least tetravalent Se to the dust slurry which has been slurried from the dust by the extractor 13; adsorbent supply 14 for supplying an adsorbent composed of an organism material for adsorbing at least hexavalent Se in the dust slurry; and separator 15 for solid-liquid separating the dust slurry to which the insolubilizer and the adsorbent have been supplied by said supplies.

    摘要翻译: 提供一种能够容易地处理烟气中所含的Se的烟道气处理系统,包括:将由干式除尘器5除去的粉尘中的可溶性成分提取到水中以将粉尘淤浆的提取器13; 用于供给用于使至少四价硒不溶解到由提取器13从灰尘中排出的粉尘浆料的不溶物供给装置16; 用于供给由用于吸附至少六价铬的生物材料组成的吸附剂的吸附剂供给装置14; 以及分离器15,用于固体分离由所述供给物供应的不溶化物和吸附剂的粉尘浆料。