CA2569689A1 - Flue gas desulfurization apparatus, flue gas desulfurization system, and method for operating flue gas desulfurization apparatus _ - Google Patents
Flue gas desulfurization apparatus, flue gas desulfurization system, and method for operating flue gas desulfurization apparatus _ Download PDFInfo
- Publication number
- CA2569689A1 CA2569689A1 CA002569689A CA2569689A CA2569689A1 CA 2569689 A1 CA2569689 A1 CA 2569689A1 CA 002569689 A CA002569689 A CA 002569689A CA 2569689 A CA2569689 A CA 2569689A CA 2569689 A1 CA2569689 A1 CA 2569689A1
- Authority
- CA
- Canada
- Prior art keywords
- sulfuric acid
- flue gas
- gas desulfurization
- water
- concentration
- 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.)
- Granted
Links
- 238000006477 desulfuration reaction Methods 0.000 title claims abstract 23
- 230000023556 desulfurization Effects 0.000 title claims abstract 23
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract 20
- 239000003546 flue gas Substances 0.000 title claims abstract 20
- 238000000034 method Methods 0.000 title claims 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract 46
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract 15
- 239000003054 catalyst Substances 0.000 claims abstract 9
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical class C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract 7
- 239000011094 fiberboard Substances 0.000 claims abstract 5
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical class S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 claims abstract 5
- 238000001816 cooling Methods 0.000 claims 11
- 239000007789 gas Substances 0.000 claims 9
- 229910052602 gypsum Inorganic materials 0.000 claims 6
- 239000010440 gypsum Substances 0.000 claims 6
- 239000002002 slurry Substances 0.000 claims 4
- TXKMVPPZCYKFAC-UHFFFAOYSA-N disulfur monoxide Inorganic materials O=S=S TXKMVPPZCYKFAC-UHFFFAOYSA-N 0.000 claims 3
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims 2
- 235000011941 Tilia x europaea Nutrition 0.000 claims 2
- 238000006243 chemical reaction Methods 0.000 claims 2
- 239000004571 lime Substances 0.000 claims 2
- 230000005494 condensation Effects 0.000 claims 1
- 238000009833 condensation Methods 0.000 claims 1
- 238000007599 discharging Methods 0.000 claims 1
- 239000004071 soot Substances 0.000 claims 1
- 229910052815 sulfur oxide Inorganic materials 0.000 abstract 2
Landscapes
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Catalysts (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention provides a flue gas desulfurization apparatus includes at least one activated carbon fiber board 20 provided in a catalyst unit 6, the board being formed by alternatingly juxtaposing one or more plate-like activated carbon fiber sheets and one or more corrugated activated carbon fiber sheets so as to provide vertically extending conduits, wherein water for producing sulfuric acid is supplied, through a capillary phenomenon, to the activated carbon fiber board 20 provided in the catalyst unit 6. The flue gas desulfurization apparatus attains removal of sulfur oxides (SO x) by adding a minimum required amount of water to the activated carbon fiber board 20 so as to attain uniform water distribution and can reduce the amount of water required for removing sulfur oxides (SO x).
Claims (10)
1. A flue gas desulfurization apparatus including a catalyst unit formed of at least one activated carbon fiber board, and water-supply means for supplying, to the catalyst unit, water for forming sulfuric acid, the catalyst unit being provided in the apparatus in the form of a tower through which a discharge gas containing sulfur oxide passes, the water-supply means being provided in the apparatus in the form of a tower, characterized by comprising humidifying-cooling means for cooling and humidifying the discharge gas outside or inside the apparatus in the form of a tower and a liquid-feed line for feeding, to the humidifying-cooling means, dilute sulfuric acid which has been collected in the apparatus in the form of a tower and has a low concentration equal to or lower than a predetermined sulfuric acid concentration.
2. The flue gas desulfurization apparatus as described in claim 1, wherein the dilute sulfuric acid having a low concentration equal to or lower than a predetermined sulfuric acid concentration has a concentration of 0.5 or lower.
3. The flue gas desulfurization apparatus as described in claim 1, wherein the dilute sulfuric acid having a low concentration equal to or lower than a predetermined sulfuric acid concentration is collected after desulfurization is stopped.
4. The flue gas desulfurization apparatus as described in any one of claims 1 to 3, wherein the desulfurization apparatus further includes an inlet for introducing the discharge gas containing sulfur oxide into a lower section of the apparatus in the form of a tower; an outlet for discharging the discharge gas in an upper section of the apparatus; and an apparatus for supplying water for producing sulfuric acid disposed above the catalyst unit and in the tower.
5. A flue gas desulfurization system characterized by comprising the flue gas desulfurization apparatus as recited in any one of claims 1 to 4;
a gypsum reaction tank for yielding gypsum slurry by reacting dilute sulfuric acid fed from the flue gas desulfurization apparatus with lime slurry; and a dewatering apparatus for separating water from gypsum slurry produced in the gypsum reaction tank, to thereby yield gypsum.
a gypsum reaction tank for yielding gypsum slurry by reacting dilute sulfuric acid fed from the flue gas desulfurization apparatus with lime slurry; and a dewatering apparatus for separating water from gypsum slurry produced in the gypsum reaction tank, to thereby yield gypsum.
6. A flue gas desulfurization system characterized by comprising the flue gas desulfurization apparatus as recited in any one of claims 1 to 4; and a condensation tank for condensing dilute sulfuric acid produced by means of the desulfurization apparatus
7. The flue gas desulfurization system as described in claim 5 or 6, wherein the discharge gas is discharged from a boiler, a gas turbine, an engine, or any of a variety of incinerators, and the flue gas desulfurization system further comprises soot-removing means for removing soot contained in the discharge gas.
8. A method for operating a flue gas desulfurization apparatus including starting, stopping, and restarting a flue gas desulfurization apparatus containing catalyst unit formed of at least one activated carbon fiber board, and water-supply means for supplying, to the catalyst unit, water for forming sulfuric acid, a tower through which a discharge gas containing sulfur oxide passes, wherein said catalyst unit and said water-supply means are provided in said tower, characterized by comprising performing humidifying-cooling and cooling through addition of water until the discharge gas is cooled to approximately 70°C; collecting low-concentration dilute sulfuric acid; and upon restarting of the apparatus, utilizing the low-concentration dilute sulfuric acid instead of water for humidifying-cooling employed in humidifying-cooling means or supplying the low concentration dilute sulfuric acid instead of water.
9. The method for operating a flue gas desulfurization apparatus as described in claim 8, which comprises supplying, upon restarting of the apparatus, the low-concentration dilute sulfuric acid instead of water for humidifying-cooling employed in humidifying-cooling means or supplying the low-concentration dilute sulfuric acid instead of water; and collecting dilute sulfuric acid having a concentration equal to or higher than a predetermined concentration, to thereby obtain a sulfuric acid product.
10. The method for operating a flue gas desulfurization apparatus as described in claim 8, which comprises supplying, upon restarting of the apparatus, the low-concentration dilute sulfuric acid instead of water for humidifying-cooling employed in humidifying-cooling means or supplying the low-concentration dilute sulfuric acid instead of water; collecting dilute sulfuric acid having a concentration equal to or higher than a predetermined concentration; and reacting the resultant dilute sulfuric acid with lime slurry, to thereby obtain gypsum.
Applications Claiming Priority (11)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001-318813 | 2001-10-17 | ||
| JP2001318813A JP2003117349A (en) | 2001-10-17 | 2001-10-17 | Flue gas treating apparatus |
| JP2001330280A JP2003126690A (en) | 2001-10-29 | 2001-10-29 | Flue gas treating system and desulfurization method |
| JP2001-330280 | 2001-10-29 | ||
| JP2001349809A JP2003144850A (en) | 2001-11-15 | 2001-11-15 | Exhaust gas desulfurizer and operation method therefor |
| JP2001349810A JP2003144851A (en) | 2001-11-15 | 2001-11-15 | Exhaust gas desulfurizer |
| JP2001-349810 | 2001-11-15 | ||
| JP2001-349809 | 2001-11-15 | ||
| JP2001368194A JP2003164731A (en) | 2001-12-03 | 2001-12-03 | Exhaust gas desulfurization equipment and method for starting the same |
| JP2001-368194 | 2001-12-03 | ||
| CA002438355A CA2438355A1 (en) | 2001-10-17 | 2002-10-16 | Flue gas desulfurization apparatus, flue gas desulfurization system, and method for operating flue gas desulfurization apparatus |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002438355A Division CA2438355A1 (en) | 2001-10-17 | 2002-10-16 | Flue gas desulfurization apparatus, flue gas desulfurization system, and method for operating flue gas desulfurization apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2569689A1 true CA2569689A1 (en) | 2003-04-24 |
| CA2569689C CA2569689C (en) | 2009-12-08 |
Family
ID=36693894
Family Applications (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002569805A Abandoned CA2569805A1 (en) | 2001-10-17 | 2002-10-16 | Flue gas desulfurization apparatus, flue gas desulfurization system, and method for operating flue gas desulfurization apparatus |
| CA002547679A Expired - Fee Related CA2547679C (en) | 2001-10-17 | 2002-10-16 | Flue gas desulfurization apparatus, flue gas desulfurization system, and method for operating flue gas desulfurization apparatus |
| CA002545578A Abandoned CA2545578A1 (en) | 2001-10-17 | 2002-10-16 | Flue gas desulfurization apparatus, flue gas desulfurization system, and method for operating flue gas desulfurization apparatus |
| CA002569689A Expired - Fee Related CA2569689C (en) | 2001-10-17 | 2002-10-16 | Flue gas desulfurization apparatus, flue gas desulfurization system, and method for operating flue gas desulfurization apparatus _ |
Family Applications Before (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002569805A Abandoned CA2569805A1 (en) | 2001-10-17 | 2002-10-16 | Flue gas desulfurization apparatus, flue gas desulfurization system, and method for operating flue gas desulfurization apparatus |
| CA002547679A Expired - Fee Related CA2547679C (en) | 2001-10-17 | 2002-10-16 | Flue gas desulfurization apparatus, flue gas desulfurization system, and method for operating flue gas desulfurization apparatus |
| CA002545578A Abandoned CA2545578A1 (en) | 2001-10-17 | 2002-10-16 | Flue gas desulfurization apparatus, flue gas desulfurization system, and method for operating flue gas desulfurization apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CA (4) | CA2569805A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2455011C (en) | 2004-01-09 | 2011-04-05 | Suncor Energy Inc. | Bituminous froth inline steam injection processing |
| CN111514743A (en) * | 2020-04-03 | 2020-08-11 | 广州尚洁环保科技有限公司 | Catalytic oxidation system for treating malodorous gas |
| CN116899369B (en) * | 2023-09-14 | 2023-12-01 | 泉州兴跃机械有限公司 | Flue gas treatment system of asphalt mixing plant and working method thereof |
-
2002
- 2002-10-16 CA CA002569805A patent/CA2569805A1/en not_active Abandoned
- 2002-10-16 CA CA002547679A patent/CA2547679C/en not_active Expired - Fee Related
- 2002-10-16 CA CA002545578A patent/CA2545578A1/en not_active Abandoned
- 2002-10-16 CA CA002569689A patent/CA2569689C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CA2545578A1 (en) | 2003-04-24 |
| CA2569689C (en) | 2009-12-08 |
| CA2547679A1 (en) | 2003-04-24 |
| CA2547679C (en) | 2009-08-04 |
| CA2569805A1 (en) | 2003-04-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20131016 |