Method for the treatment of exhaust gases
    1.
    发明授权
    Method for the treatment of exhaust gases 失效
    废气处理方法

    公开(公告)号:US4539190A

    公开(公告)日:1985-09-03

    申请号:US649482

    申请日:1984-09-11

    摘要: A method for the wet treatment of combustion exhaust gases comprising SO.sub.2 and HCl, the method comprising detecting an amount of HCl in the exhaust gas and feeding, to an exhaust gas treating tower, a sodium salt in an amount corresponding to at least the detected amount of HCl so that all the HCl is able to be converted into NaCl in the exhaust gas treating tower, along with CaCO.sub.3 or Ca(OH).sub.2 used as an SO.sub.2 absorbent.

    摘要翻译: 一种用于湿处理包含SO 2和HCl的燃烧废气的方法,所述方法包括检测排气中的HCl的量并将排放气体处理塔中的至少相应于检测量的钠盐 的HCl,使得所有的HCl能够在排气处理塔中与用作SO 2吸收剂的CaCO 3或Ca(OH)2一起转化为NaCl。

    Gas refining system
    6.
    发明授权
    Gas refining system 失效
    气体精炼系统

    公开(公告)号:US5980846A

    公开(公告)日:1999-11-09

    申请号:US74033

    申请日:1998-05-06

    CPC分类号: C10K1/26

    摘要: This invention relates to a gas refining system wherein a high-temperature and high-pressure reducing gas is introduced into a fixed-bed desulfurizer packed with an adsorbent by which sulfur compounds contained in the high-temperature and high-pressure reducing gas are adsorbed and removed in the form of a sulfide, and the adsorbent having the sulfide adsorbed thereon is regenerated by roasting it with a regenerating gas containing oxygen, characterized in that the gas refining system is equipped with oxygen concentration control means for controlling the oxygen concentration in the regenerating gas introduced into the desulfurizer so as to keep the internal temperature of the desulfurizer during the regeneration reaction within the allowable temperature range of the adsorbent. This invention includes an embodiment in which the exhaust gas obtained after the regeneration reaction gas is brought into contact with a calcium compound-containing slurry to recover gypsum is recycled to the desulfurizer for use as the regenerating gas for the adsorbent. Thus, the adverse effect of the heat of regeneration reaction on the adsorbent used in the fixed-bed desulfurizer can be avoided positively and easily.

    摘要翻译: 本发明涉及一种气体精炼系统,其中将高温高压还原气体引入填充有吸附剂的固定床脱硫器中,通过该吸附剂吸附高温高压还原气体中所含的硫化合物, 以硫化物的形式除去,吸附有硫化物的吸附剂通过用含氧的再生气体焙烧而再生,其特征在于,气体精炼系统配备有氧浓度控制装置,用于控制再生中的氧浓度 将气体引入脱硫器中,以便在再生反应期间将脱硫剂的内部温度保持在吸附剂的允许温度范围内。 本发明包括将再生反应气体与含钙化合物的浆料接触以回收石膏后获得的废气再循环至脱硫器,用作吸附剂的再生气体。 因此,可以积极且容易地避免再生反应的热量对固定床脱硫剂中使用的吸附剂的不良影响。

    Wet gas processing method and the apparatus using the same
    7.
    发明授权
    Wet gas processing method and the apparatus using the same 失效
    湿气处理方法及其使用方法

    公开(公告)号:US6138378A

    公开(公告)日:2000-10-31

    申请号:US341433

    申请日:1999-09-08

    摘要: This invention is related to a wet gas process which would not require a spray pump, and which would allow the absorption liquid to be recovered smoothly even if the flow velocity of the gases entrained to the liquid should decrease. A wet gas processing apparatus in which the absorption liquid collected in the first liquid storage tank is sprayed in a specified direction (which may be upward, horizontal or downward) by a discharge unit consisting of spray nozzles (14) or the like in the absorption tower. The sprayed liquid is brought into contact with the exhaust gases which are conducted into the tower, and the targeted components of the gases are absorbed and removed. This processing apparatus is distinguished by the following. The first liquid storage tank for the absorption liquid comprises a pressure tank (11) which generates a pressurized gas in the space above the surface of the collected liquid (11a). The increased pressure of the pressurized gas is employed to spray the liquid collected in the pressurized tank from the spray nozzle unit in the absorption tower. This apparatus is further distinguished as the following. This invention has overflow ports which generate a virtually horizontal overflow or source flow. The absorption liquid propelled by the overflow ports makes orthogonal contact with the flow of exhaust gases, which results in both atomization of the liquid and liquid-vapor contact.

    摘要翻译: PCT No.PCT / JP98 / 05062 Sec。 371 1999年9月8日第 102(e)日期1999年9月8日PCT提交1998年11月10日PCT公布。 出版物WO99 /​​ 24148 日期1999年5月20日本发明涉及不需要喷雾泵的湿法气体处理,即使吸入液体的气体的流速降低也能使吸收液体顺利地回收。 一种湿气处理装置,其中收集在第一液体储罐中的吸收液体通过在吸收中由喷嘴(14)等组成的排出单元在特定方向(可以是向上,水平或向下)喷射) 塔。 喷射的液体与被引导到塔中的废气接触,并且气体的目标成分被吸收和去除。 该处理装置的区别在于以下。 用于吸收液体的第一液体储存罐包括在收集液体(11a)的表面上方的空间中产生加压气体的压力罐(11)。 加压气体的增加的压力用于将从加压罐中收集的液体从吸收塔中的喷嘴单元喷射。 该装置进一步区别如下。 本发明具有产生实质上水平的溢流或源流的溢流口。 由溢流口推动的吸收液体与废气流正交接触,导致液体雾化和液 - 气接触。

    Method for desulfurizing exhaust smoke
    8.
    发明授权
    Method for desulfurizing exhaust smoke 失效
    排烟烟气脱硫方法

    公开(公告)号:US5284557A

    公开(公告)日:1994-02-08

    申请号:US720621

    申请日:1991-06-25

    CPC分类号: B01D53/501

    摘要: A method for desulfurizing an exhaust gas containing SO.sub.2 and NO.sub.x in accordance with a wet lime process, the aforesaid desulfurizing method being characterized by comprising the steps of drawing a part of an absorbing slurry, subjecting a filtrate obtained by the solid-liquid separation of the drawn absorbing slurry to an electrolysis treatment in the presence of chlorine ions, or after adjusting the filtrate to pH 3-4, mixing a hydrochlorite with the filtrate, and then refeeding the filtrate as a make-up water to an absorbing tower.

    摘要翻译: 一种根据湿法石灰处理对含有二氧化硫和氮氧化物的废气进行脱硫的方法,上述脱硫方法的特征在于包括以下步骤:拉出一部分吸收浆料,将通过固液分离得到的滤液 在氯离子存在下进行电解处理,或将滤液调节至pH 3-4后,与滤液混合,然后将滤液作为补充水重新加入到吸收塔中。

    Wet-type exhaust gas desulfurization system having a means for supplying
air
    9.
    发明授权
    Wet-type exhaust gas desulfurization system having a means for supplying air 失效
    湿式废气脱硫系统,具有供给空气的装置

    公开(公告)号:US5209905A

    公开(公告)日:1993-05-11

    申请号:US803172

    申请日:1991-12-05

    摘要: A wet-type exhaust gas desulfurization system comprises a reservoir for trapping an absorbing solution which has absorbed SO.sub.2 from exhaust gas; an absorbing solution circulating tank disposed directly under the reservoir; a plurality of bottom pipes which are installed at the bottom of reservoir and extend downward into the absorbing solution in the circulating tank and whose lower end is open, or drop pipes which depend into the absorbing solution and whose lower ends are open; and air supply pipe at least one end of which is open to the atmosphere; a pipe for discharging the air above the surface of absorbing solution onto the surface of solution in the reservoir; and a pipe for supplying the absorbing solution in the circulating tank to a spray nozzle at the upper part of the absorbing tower.

    摘要翻译: 湿式废气脱硫系统包括用于捕集从废气吸收SO 2的吸收溶液的储存器; 位于储存器正下方的吸收溶液循环罐; 多个底部管道,其安装在储存器的底部并向下延伸到循环罐中的吸收溶液中,并且其下端打开;或下降管,其依赖于吸收溶液并且其下端敞开; 空气供给管的至少一端向大气敞开; 用于将吸收溶液表面上方的空气排放到储存器中的溶液表面上的管道; 以及用于将循环罐中的吸收溶液供应到吸收塔上部的喷嘴的管道。