JPH0221853B2 - - Google Patents
Info
- Publication number
- JPH0221853B2 JPH0221853B2 JP57095689A JP9568982A JPH0221853B2 JP H0221853 B2 JPH0221853 B2 JP H0221853B2 JP 57095689 A JP57095689 A JP 57095689A JP 9568982 A JP9568982 A JP 9568982A JP H0221853 B2 JPH0221853 B2 JP H0221853B2
- Authority
- JP
- Japan
- Prior art keywords
- exhaust gas
- gypsum
- sulfuric acid
- produce
- direct reduction
- 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.)
- Expired - Lifetime
Links
- 238000000034 method Methods 0.000 claims description 25
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 18
- 238000006477 desulfuration reaction Methods 0.000 claims description 13
- 230000023556 desulfurization Effects 0.000 claims description 13
- 239000007789 gas Substances 0.000 claims description 10
- 239000010440 gypsum Substances 0.000 claims description 10
- 229910052602 gypsum Inorganic materials 0.000 claims description 10
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 claims description 6
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 claims description 6
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 claims description 5
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 4
- 229940043430 calcium compound Drugs 0.000 claims description 4
- 150000001674 calcium compounds Chemical class 0.000 claims description 4
- 239000003546 flue gas Substances 0.000 claims description 4
- 239000002699 waste material Substances 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 229910000037 hydrogen sulfide Inorganic materials 0.000 claims description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims 1
- 238000002425 crystallisation Methods 0.000 description 6
- 230000008025 crystallization Effects 0.000 description 6
- 238000010521 absorption reaction Methods 0.000 description 4
- 239000007800 oxidant agent Substances 0.000 description 4
- 239000011575 calcium Substances 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000010459 dolomite Substances 0.000 description 1
- 229910000514 dolomite Inorganic materials 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229910052815 sulfur oxide Inorganic materials 0.000 description 1
- 238000005406 washing Methods 0.000 description 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
- C01F11/46—Sulfates
- C01F11/464—Sulfates of Ca from gases containing sulfur oxides
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Treating Waste Gases (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57095689A JPS58214321A (ja) | 1982-06-04 | 1982-06-04 | 直接還元製鉄プロセスにおける湿式排ガス脱硫方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57095689A JPS58214321A (ja) | 1982-06-04 | 1982-06-04 | 直接還元製鉄プロセスにおける湿式排ガス脱硫方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58214321A JPS58214321A (ja) | 1983-12-13 |
| JPH0221853B2 true JPH0221853B2 (fr) | 1990-05-16 |
Family
ID=14144455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57095689A Granted JPS58214321A (ja) | 1982-06-04 | 1982-06-04 | 直接還元製鉄プロセスにおける湿式排ガス脱硫方法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58214321A (fr) |
-
1982
- 1982-06-04 JP JP57095689A patent/JPS58214321A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58214321A (ja) | 1983-12-13 |
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