Method and device for removing sulphur dioxide from a gas
    1.
    发明授权
    Method and device for removing sulphur dioxide from a gas 失效
    从气体中除去二氧化硫的方法和装置

    公开(公告)号:US5759505A

    公开(公告)日:1998-06-02

    申请号:US750866

    申请日:1997-01-27

    CPC分类号: B01D53/78 B01D53/504

    摘要: A method and a device for removing sulphur dioxide from a gas, preferably a flue gas, by means of an aqueous suspension of an absorbent, preferably limestone, are disclosed. In the method, the flue gas is conducted through a conduit topped with an apertured plate (3) on which is provided a flowing layer of the absorbent suspension having a static height of at least about 100 mm, preferably about 200-500 mm, and a volume of about 50-500 l, calculated per m.sup.3 of flue gas flowing through the layer every second. The layer of absorbent suspension flows along the apertured plate (3) at a flow rate of about 5-100 l/s, preferably about 10-30 l/s per 1 m.sup.3 of sulphur-dioxide-containing gas per second. The device comprises an inlet (1) and an outlet (2) for the flue gas; an apertured plate (3); a tank (5) for the absorbent suspension; at least one inlet duct (6) arranged between the tank (5) and the apertured plate (3); means (8, 10, 11, 12) for supplying the absorbent suspension; at least one outlet duct (7) for recycling the absorbent suspension from the apertured plate (3) to the tank (5); and means (9, 12; 13; 14; 16) for supplying air, absorbent and water, as well as for withdrawing gypsum.

    摘要翻译: PCT No.PCT / SE95 / 00404 Sec。 371日期1997年1月27日 102(e)日期1997年1月27日PCT提交1995年4月13日PCT公布。 公开号WO96 / 00122 日本1996年1月4日公开了一种通过吸收剂,优选石灰石的水性悬浮液从气体,优选烟道气中除去二氧化硫的方法和装置。 在该方法中,烟道气通过带有多孔板(3)的管道传导,其上设有具有至少约100mm,优选约200-500mm的静态高度的吸收悬浮液的流动层,以及 体积约50-500升,每立方米每秒流出的烟气每秒计算一次。 吸收性悬浮液层沿着孔板(3)以约5-100l / s的流速流动,优选约10-30l / s / 1m 3的含二氧化硫气体每秒流动。 该装置包括用于烟道气的入口(1)和出口(2) 多孔板(3); 用于吸收悬浮液的罐(5) 布置在所述罐(5)和所述多孔板(3)之间的至少一个入口管道(6); 用于供应吸收悬浮液的装置(8,10,11,12) 至少一个出口管道(7),用于将吸收悬浮液从有孔板(3)再循环到罐(5); 以及用于供应空气,吸收剂和水以及用于抽出石膏的装置(9,12; 13; 14; 16)。

    Method and a device for the separation of sulphur dioxide from a gas
    2.
    发明授权
    Method and a device for the separation of sulphur dioxide from a gas 有权
    用于从气体中分离二氧化硫的方法和装置

    公开(公告)号:US07094382B2

    公开(公告)日:2006-08-22

    申请号:US10482130

    申请日:2002-07-04

    IPC分类号: B01D53/50 B01D53/78

    摘要: A device (1) for separating sulphur dioxide from a gas has an inlet (2) for the gas (4) and an outlet (42) for gas (40), from which sulphur dioxide has been separated. An apertured plate (20) is arranged between the inlet (2) and the outlet (42) and allows the gas (4) to pass from below. On its upper side (22), the apertured plate supports a flowing layer (24) of absorption liquid. An inlet duct (12) connects a container (6) for absorption liquid to the upper side (22) of the apertured plate (20). A means (10) conveys the absorption liquid (8) from the container (6), through the inlet duct (12), to the upper side (22) of the apertured plate (20) and along the apertured plate (20). The device also has an outlet box (30) for collecting the absorption liquid (8) flowing over the apertured plate (20) and at least one distribution means (34), which is arranged to contact the gas (4) which is supplied to the device (1) through the inlet (2) with the liquid (8) flowing from the outlet box (30) to the container (6) before the gas (4) passes through the apertured plate (20).

    摘要翻译: 用于从气体中分离二氧化硫的装置(1)具有用于气体(4)的入口(2)和用于气体(40)的出口(42),二氧化硫已从其中分离出来。 在入口(2)和出口(42)之间布置有孔板(20),并允许气体(4)从下方通过。 在其上侧(22)上,多孔板支撑吸收液体的流动层(24)。 入口管道(12)将用于吸收液体的容器(6)连接到有孔板(20)的上侧(22)。 装置(10)将来自容器(6)的吸收液体(8)通过入口管道(12)输送到多孔板(20)的上侧(22)并且沿着孔板(20)传送。 该装置还具有用于收集在多孔板(20)上流动的吸收液体(8)的出口箱(30)和至少一个分配装置(34),该分配装置设置成接触气体(4) 所述装置(1)通过所述入口(2),其中所述液体(8)在所述气体(4)通过所述多孔板(20)之前从所述出口箱(30)流动到所述容器(6)。