Sulfur dioxide abatement method
    1.
    发明授权
    Sulfur dioxide abatement method 失效
    二氧化硫减排法

    公开(公告)号:US06464952B1

    公开(公告)日:2002-10-15

    申请号:US09064015

    申请日:1998-04-20

    申请人: James J. Schwab

    发明人: James J. Schwab

    IPC分类号: C01B1722

    CPC分类号: B01D53/504

    摘要: A pollution control apparatus and method to scrub sulfur dioxide uses a lime slurry consisting of small diameter hydrated lime particles injected into the cooling water of a gas cooling tower. The diameter of the lime slurry particles is selected to be less than about 25 microns so that the lime particles substantially dissolve during the evaporative lifetime of the spray droplets. A preferred embodiment of the pollution control apparatus uses an in-line wet grinder and classifier to produce slurry as required.

    摘要翻译: 用于洗涤二氧化硫的污染控制装置和方法使用由注入气体冷却塔的冷却水中的小直径熟石灰颗粒组成的石灰浆料。 石灰浆料颗粒的直径选择为小于约25微米,使得石灰颗粒在喷雾液滴的蒸发寿命期间基本上溶解。 污染控制装置的优选实施例使用直列式湿磨机和分级机根据需要制造浆料。

    Method for the preparation of anhydrous sodium sulfide
    2.
    发明授权
    Method for the preparation of anhydrous sodium sulfide 失效
    无水硫化钠的制备方法

    公开(公告)号:US06582675B2

    公开(公告)日:2003-06-24

    申请号:US09813934

    申请日:2001-03-22

    申请人: Alfred Alig

    发明人: Alfred Alig

    IPC分类号: C01B1722

    CPC分类号: C01B17/38

    摘要: A method of preparing anhydrous sodium sulfide having an Na2S content of at least 98 wt %, by drying hydrous sodium sulfide having a water content of 35 to 45%, provided as a solid or in liquefied form, by intensively kneading and mixing hydrated sodium sulfide at an elevated temperature and pressure to thereby liquify said hydrated sodium sulfide and obtain the anhydrous sodium sulfide.

    摘要翻译: 通过将水分含量为35〜45%的含水硫化钠作为固体或液化形式,通过将水合硫化钠强烈混合并混合而制备NaS 2 S含量为至少98wt%的无水硫化钠的方法 在升高的温度和压力下,使所述水合硫化钠液化,得到无水硫化钠。

    Chloride/sulfate removal system
    3.
    发明授权
    Chloride/sulfate removal system 有权
    氯化物/硫酸盐去除系统

    公开(公告)号:US06749820B2

    公开(公告)日:2004-06-15

    申请号:US09797203

    申请日:2001-02-28

    IPC分类号: C01B1722

    CPC分类号: B01D53/504

    摘要: The liquid cooling spray in a gas conditioning chamber is modified by the addition of an alkali to scrub sulfuir dioxide and other acid forming gases and a separation unit to remove particles that may contain either unreacted alkali or salts of the acid forming gases. A slurry of fine particles of hydrated lime is injected into the liquid coolant under conditions that result in kernels of controllable size that contain the alkali or salts from reactions with the acid forming gases. The modified cooling liquid provides for a high sulfur dioxide collection efficiency at a low molar ratio of alkali to sulfur, while the specified kernel size range allows fbr efficient removal of the kernels from the gas.

    摘要翻译: 在气体调节室中的液体冷却喷雾通过加入碱来洗涤二氧化硫和其它形成酸的气体以及分离单元来改变,以除去可能含有未反应的碱或形成酸的气体的盐的颗粒。 在产生可控尺寸的颗粒的条件下,将熟石灰的细颗粒的浆料注入液体冷却剂中,其含有与酸形成气体反应的碱或盐。 改性的冷却液在碱与硫的低摩尔比下提供高二氧化硫收集效率,而规定的粒径范围允许有效地从气体中除去颗粒。

    Method for the production of anhydrous alkali metal sulfide and alkali metal sulfide solution
    5.
    发明授权
    Method for the production of anhydrous alkali metal sulfide and alkali metal sulfide solution 有权
    生产无水碱金属硫化物和碱金属硫化物溶液的方法

    公开(公告)号:US06337062B1

    公开(公告)日:2002-01-08

    申请号:US09512456

    申请日:2000-02-24

    申请人: Iwao Akiba

    发明人: Iwao Akiba

    IPC分类号: C01B1722

    摘要: A method for producing an anhydrous alkali metal sulfide, which entails a) bubbling a solution of an alkali metal hydroxide in an aprotic organic solvent, such as N-alkylcaprolactam or N-alkylpyrrolidone, with hydrogen sulfide gas at a temperature between 50 and 250° C., thereby forming a product containing alkali metal hydrosulfide, and then b) terminating the hydrogen sulfide introduction after the system has come to contain substantially no water remaining therein, and heating the system, thereby effecting dehydrosulfurization to form the alkali metal sulfide.

    摘要翻译: 一种无水碱金属硫化物的制造方法,其特征在于:a)在50〜250℃的温度下,用氢化硫气体将碱金属氢氧化物溶解在非质子性有机溶剂如N-烷基己内酰胺或N-烷基吡咯烷酮中, 从而形成含有碱金属氢硫化物的产物,然后b)在系统基本上不含有水之后终止硫化氢引入,并加热该体系,从而进行脱硫硫化以形成碱金属硫化物。