JPS571420A - Method and apparatus for removing sulfur troxide by corona discharge - Google Patents
Method and apparatus for removing sulfur troxide by corona dischargeInfo
- Publication number
- JPS571420A JPS571420A JP7613180A JP7613180A JPS571420A JP S571420 A JPS571420 A JP S571420A JP 7613180 A JP7613180 A JP 7613180A JP 7613180 A JP7613180 A JP 7613180A JP S571420 A JPS571420 A JP S571420A
- Authority
- JP
- Japan
- Prior art keywords
- corona discharge
- lime
- exhaust gas
- gas
- removing sulfur
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 title 1
- 229910052717 sulfur Inorganic materials 0.000 title 1
- 239000011593 sulfur Substances 0.000 title 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 abstract 3
- 229910001861 calcium hydroxide Inorganic materials 0.000 abstract 3
- 239000000920 calcium hydroxide Substances 0.000 abstract 3
- 235000008733 Citrus aurantifolia Nutrition 0.000 abstract 2
- 235000011941 Tilia x europaea Nutrition 0.000 abstract 2
- 235000011116 calcium hydroxide Nutrition 0.000 abstract 2
- 239000003054 catalyst Substances 0.000 abstract 2
- 239000010881 fly ash Substances 0.000 abstract 2
- 239000004571 lime Substances 0.000 abstract 2
- 239000003513 alkali Substances 0.000 abstract 1
- 229910052925 anhydrite Inorganic materials 0.000 abstract 1
- 239000011575 calcium Substances 0.000 abstract 1
- 229940043430 calcium compound Drugs 0.000 abstract 1
- 150000001674 calcium compounds Chemical class 0.000 abstract 1
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 abstract 1
- 238000002485 combustion reaction Methods 0.000 abstract 1
- 238000007599 discharging Methods 0.000 abstract 1
Landscapes
- Treating Waste Gases (AREA)
Abstract
PURPOSE: To remove SO3 as CaCO4 by causing a corona discharge to occur in an exhaust gas, which contains SO3 and is at a high temperature, in the presence of a catalyst containing a calcium compound.
CONSTITUTION: The combustion exhaust gas containing SO3 and being at a high temperature of at least about 300°C is passed through a duct, into which a Ca-containing alkali catalyst F such as fly ash, lime and slaked lime is simultaneously introduced to mix with the gas. The corona discharge 3 is brought about in the gas by applying a high DC voltage between a discharging electrode 1 and a counter electrode 2. A layer of CaO or Ca(OH)2 at the surfaces of the fly ash or that of lime or slaked lime is activated by the corona discharge 3 and reacts with SO3 in the exhaust gas to form CaSO4 which is then removed.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7613180A JPS571420A (en) | 1980-06-06 | 1980-06-06 | Method and apparatus for removing sulfur troxide by corona discharge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7613180A JPS571420A (en) | 1980-06-06 | 1980-06-06 | Method and apparatus for removing sulfur troxide by corona discharge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS571420A true JPS571420A (en) | 1982-01-06 |
Family
ID=13596382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7613180A Pending JPS571420A (en) | 1980-06-06 | 1980-06-06 | Method and apparatus for removing sulfur troxide by corona discharge |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS571420A (en) |
-
1980
- 1980-06-06 JP JP7613180A patent/JPS571420A/en active Pending
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