JPS5792514A - Method for concentrating carbon dioxide in exhaust gas of limestone calcination furnace - Google Patents
Method for concentrating carbon dioxide in exhaust gas of limestone calcination furnaceInfo
- Publication number
- JPS5792514A JPS5792514A JP55168689A JP16868980A JPS5792514A JP S5792514 A JPS5792514 A JP S5792514A JP 55168689 A JP55168689 A JP 55168689A JP 16868980 A JP16868980 A JP 16868980A JP S5792514 A JPS5792514 A JP S5792514A
- Authority
- JP
- Japan
- Prior art keywords
- gas
- calcination furnace
- limestone
- exhaust gas
- furnace
- 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
Landscapes
- Treating Waste Gases (AREA)
Abstract
PURPOSE: To improve the quality of the produced quicklime, and to obtain high purity CO2 gas, by using a fuel and oxygen having low nitrogen-content as the heat source of a limestone calcination furnace, recycling a part of the exhaust combustion gas to the calcination furnace, and recovering the remaining gas.
CONSTITUTION: Raw limestone 35 is charged into the limestone calcination furnace 21, and a fuel 26 having low nitrogen-content is burnt as a heat source with oxygen-enriched air or pure oxygen 27. The limestone 25 is calcined in the furnace to obtain quicklime 36. A part of the exhaust combustion gas 29 is recycled by the blower 30 to the calcination furnace 21 to reduce the loss of sensible heat of the exaust gas and to improve the quality of the produced quicklime 36. The remaining part of the exhaust gas 29 is brought inot contact with scrubbing water 38 in the scrubber 22. CaO which is a main component of the dust in the exhaust gas 29 is converted in the scrubber 22 to CaCO3, and removed. The cleaned exhaust gas 34 is stored through the stack 23 in the reservoir 43 as a high purity CO2 gas, and effectively utilized.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55168689A JPS5792514A (en) | 1980-11-29 | 1980-11-29 | Method for concentrating carbon dioxide in exhaust gas of limestone calcination furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55168689A JPS5792514A (en) | 1980-11-29 | 1980-11-29 | Method for concentrating carbon dioxide in exhaust gas of limestone calcination furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5792514A true JPS5792514A (en) | 1982-06-09 |
Family
ID=15872634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP55168689A Pending JPS5792514A (en) | 1980-11-29 | 1980-11-29 | Method for concentrating carbon dioxide in exhaust gas of limestone calcination furnace |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5792514A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58176150A (en) * | 1982-04-08 | 1983-10-15 | 宇部興産株式会社 | Lime stone baking furnace |
-
1980
- 1980-11-29 JP JP55168689A patent/JPS5792514A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58176150A (en) * | 1982-04-08 | 1983-10-15 | 宇部興産株式会社 | Lime stone baking furnace |
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