JPS5761627A - Regeneration of clucium oxide from calcium sulfate utilizing fluidized bed - Google Patents
Regeneration of clucium oxide from calcium sulfate utilizing fluidized bedInfo
- Publication number
- JPS5761627A JPS5761627A JP55133436A JP13343680A JPS5761627A JP S5761627 A JPS5761627 A JP S5761627A JP 55133436 A JP55133436 A JP 55133436A JP 13343680 A JP13343680 A JP 13343680A JP S5761627 A JPS5761627 A JP S5761627A
- Authority
- JP
- Japan
- Prior art keywords
- fluidized bed
- calcium
- calcium oxide
- calcium sulfate
- oxide
- 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
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 title abstract 8
- 230000008929 regeneration Effects 0.000 title abstract 2
- 238000011069 regeneration method Methods 0.000 title abstract 2
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 abstract 5
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 abstract 5
- 239000000292 calcium oxide Substances 0.000 abstract 5
- 239000003245 coal Substances 0.000 abstract 4
- 239000007789 gas Substances 0.000 abstract 3
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 abstract 2
- 230000015572 biosynthetic process Effects 0.000 abstract 2
- JGIATAMCQXIDNZ-UHFFFAOYSA-N calcium sulfide Chemical compound [Ca]=S JGIATAMCQXIDNZ-UHFFFAOYSA-N 0.000 abstract 2
- 238000002485 combustion reaction Methods 0.000 abstract 2
- 239000000295 fuel oil Substances 0.000 abstract 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 1
- 238000006477 desulfuration reaction Methods 0.000 abstract 1
- 230000023556 desulfurization Effects 0.000 abstract 1
- 239000000446 fuel Substances 0.000 abstract 1
- 229910052760 oxygen Inorganic materials 0.000 abstract 1
- 239000001301 oxygen Substances 0.000 abstract 1
- 239000002245 particle Substances 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F11/00—Compounds of calcium, strontium, or barium
- C01F11/02—Oxides or hydroxides
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Treating Waste Gases (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Abstract
PURPOSE: Calcium sulfate which is formed on the desulfurization of exhaust gases from heavy oil or coal combustion with calcium oxide is treated in a specific fluidized bed-type regeneration furnace to convert the calcium sulfate into calcium oxide with the formation of a small amount of calcium sulfide.
CONSTITUTION: The air box is formed by use of a porous distribution plate 12 under the fluidized bed furnace and separated into two sections 13A and 13B with a plate 19. The mixed particles of calcium sulfate and calcium oxide 14 formed by the removal of sulfur dioxide from the exhaust gas on heavy oil or coal combustion with calcium oxide are placed on the distribution plate 12, the inside of the furnace is heated up to 1,050°C and coal as a fuel is fed from the pipe 25. At the same time, air is fed from the pipe 20 into the air box 13A and the exhaust gas of low oxygen concentration is fed to the box 13B to form the fluidized bed 11. The feed rate of the coal is adjusted to about 0.8 to the air feed rate to reduce the formation of calcium sulfide and increase the calcium oxide content.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55133436A JPS5761627A (en) | 1980-09-25 | 1980-09-25 | Regeneration of clucium oxide from calcium sulfate utilizing fluidized bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55133436A JPS5761627A (en) | 1980-09-25 | 1980-09-25 | Regeneration of clucium oxide from calcium sulfate utilizing fluidized bed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5761627A true JPS5761627A (en) | 1982-04-14 |
Family
ID=15104724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP55133436A Pending JPS5761627A (en) | 1980-09-25 | 1980-09-25 | Regeneration of clucium oxide from calcium sulfate utilizing fluidized bed |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5761627A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59133535U (en) * | 1983-02-28 | 1984-09-06 | 神崎製紙株式会社 | Powder storage device |
| JP2011020881A (en) * | 2009-07-15 | 2011-02-03 | Akita Univ | Method for converting calcium sulfate-containing material into calcium oxide and elemental sulfur, and method and system for recycling calcium sulfate-containing material |
-
1980
- 1980-09-25 JP JP55133436A patent/JPS5761627A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59133535U (en) * | 1983-02-28 | 1984-09-06 | 神崎製紙株式会社 | Powder storage device |
| JP2011020881A (en) * | 2009-07-15 | 2011-02-03 | Akita Univ | Method for converting calcium sulfate-containing material into calcium oxide and elemental sulfur, and method and system for recycling calcium sulfate-containing material |
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