Title:
APPARATUS FOR REMOVING HARMFUL SUBSTANCES FROM EXHAUST GAS
Document Type and Number:
WIPO Patent Application WO/2020/136930
Kind Code:
A1
Abstract:
[Problem] To provide an apparatus for removing harmful substances such as sulfur oxides contained in exhaust gas without using a neutralizing agent such as lime water in large amounts. [Solution] In a first tank 2 which contains exhaust gas, the exhaust gas is cooled to within a range of 0-40 °C by spraying, from a first spraying device 3, a coolant on which water or sulfur dioxide is adsorbed. In addition, the cooled exhaust gas is supplied to a second tank 6 through a conduit 5, thereby spraying mist-like water from a second spraying device 7. Accordingly, the solubility of sulfur dioxide is improved, and harmful substances can be removed by dissolving/adsorbing the sulfur dioxide in water. Also, an aqueous solution in which the sulfur dioxide is dissolved is heated in a third tank 8, thereby separating the sulfur dioxide.
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Inventors:
TANIGAWA SHIGETOSHI (JP)
Application Number:
PCT/JP2019/016910
Publication Date:
July 02, 2020
Filing Date:
April 21, 2019
Export Citation:
Assignee:
ACA CO LTD (JP)
International Classes:
B01D53/18; B01D53/50; B01D53/78
Foreign References:
| JP2014528827A | 2014-10-30 | |||
| JPH10272335A | 1998-10-13 | |||
| JP2004321868A | 2004-11-18 | |||
| JPH07213854A | 1995-08-15 | |||
| JPS383651B1 | 1963-04-18 | |||
| JPH11347349A | 1999-12-21 | |||
| JPH10216476A | 1998-08-18 |
Attorney, Agent or Firm:
KURU Toru (JP)
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