CN1262145A - Process for desulfurizing industrial fume with seawater - Google Patents
Process for desulfurizing industrial fume with seawater Download PDFInfo
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- CN1262145A CN1262145A CN 99114641 CN99114641A CN1262145A CN 1262145 A CN1262145 A CN 1262145A CN 99114641 CN99114641 CN 99114641 CN 99114641 A CN99114641 A CN 99114641A CN 1262145 A CN1262145 A CN 1262145A
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- seawater
- washing
- wash
- gas
- sour gas
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Abstract
A process for desulfurizing industrial fume with seawater is suitable to remove the acidic substances, such as SO2, from the industrial fume in coastal region. Part of seawater is delivered into washing tower to remove the acidic gas from the fume. The acidic seawater after washed is mixed with the rest of seawater. The mixed seawater is aerated. Its advantages are high anticorrosion and anti-blocking performance, and low cost.
Description
The present invention relates to process for desulfurizing industrial fume with seawater, belong to environmental protection technical field, be applicable to the acidic materials such as SO2 that can cause acid rain to take place that remove in the coastal industry device discharging flue gas.
In order to protect environment, prevent and treat acid rain, the flue gas that industrial burning device produced must remove wherein a part or most of SO before entering atmosphere
2Deng sour gas.Some remove SO in the flue gas
2Method, the cost that relates to is high and operating cost that factors such as absorbent and byproduct cause is very high, often forms the contradiction of environmental benefit and economic benefit and is difficult to use.At present, existing a kind of seawer washing flue gas that utilizes in the coastal area is to remove SO in the flue gas
2Method, its desulfurized effect is better, the cost and the operating cost of process facility are low, do not have accessory substance to produce, its draining meets China's marine environment water standard, and is safe and harmless to the marine eco-environment.This method is that the part with total seawater water yield that is used for desulfurization is sent to scrubbing tower washing acidic gas in flue gas, to wash acid seawater and the remainder sea water mixing that is not used to wash sour gas behind the sour gas again, then this mixed seawater is blasted air, so that seawater discharges after reaching environmental quality requirement.But, it is less that the water yield that this method is used to wash this a part of seawater of sour gas accounts for the ratio of Total Water, thereby thereby exist have relatively high expectations its structure relative complex thereby the also relative higher shortcoming of cost that internal corrosion and obstruction influence system performance and such tower more easily takes place of the absorptivity on absorption tower.
The objective of the invention is to, overcome the shortcoming that existing flue gas desulfurization with seawater method exists, a kind of method that can further improve systematic function and reduce its cost is provided.
The technical scheme of the inventive method is: it comprises that the part with total seawater water yield that is used for desulfurization is sent to scrubbing tower washing acidic gas in flue gas, to wash acid seawater and the remainder sea water mixing that is not used to wash sour gas behind the sour gas again, then mixed seawater is blasted air, so that seawater discharges after reaching environmental quality requirement, the water yield that is used to wash this a part of seawater of sour gas is 1/3～4/5 of a Total Water.
Fig. 1 is a process flow diagram of the present invention.Device name shown in the figure is: 1, gas approach, 2, scrubbing tower, 3, chimney, 4, acid seawater pipeline, 5, total sea water pump, 6, total seawater pipeline, 7, the washing sea water pump, 8, washing seawater pipeline, 9, be not used to wash seawater pipeline, 10, the air-blowing facility, 11, blast pipe, 12, air blast, 13, qualified seawater outlet.
The principle of the inventive method is: pending flue gas enters scrubbing tower (2) from gas approach (1) and flows through this tower from bottom to top or from top to bottom, has been washed SO2Clean flue gas enter atmosphere by chimney (3). Seawater is through total Sea water pump (5) enters total seawater pipeline (6) afterwards, wherein accounts for a part of seawater of Total Water 1/3～4/5 through washing Sea water pump (7) and washing seawater pipeline (8) enter the SO of scrubbing tower (2) washing flue gas2, the acid seawater warp of generation Acid seawater pipeline (4) mixes laggard with another part through not being used for the next residual seawater of washing seawater pipeline (9) stream Enter air-blowing facility (10), the pH value of mixing seawater reaches more than 4; Acid seawater and the residue sea that is not used for washing Water also can enter respectively in the air-blowing facility (10) and mix; Then via air blast (12) and blast pipe (11) to drum The gas facility blasts large quantity of air in (10). Satisfying the seawater of environmental quality requirement after the air-blowing discharges from qualified seawater Mouth (13) is discharged into nature.
The present invention adopts the method that increases the washing seawater water yield so that simple in structure, cost is relatively low one Class washing tower such as hollow tower, sieve-plate tower etc. can be selected to full sea water method flue gas desulfurization technique. With existing Technology is compared, the relatively simple class scrubbing tower of structure, and its anticorrosion and anticlogging performance are also stronger, because of And be conducive to improve the operational reliability of whole desulphurization system. On the other hand, the increase of the washing seawater water yield is led Cause corresponding power consumption and rise to some extent, but because the cost decrease of scrubbing tower, thereby make overall operational cost With in occupy significant proportion one of equipment depreciation descend significantly, so total operating cost also with under Fall. Scrubbing tower can and be selected by general chemical industry technological requirement design.
To enumerate embodiment as follows in order to illustrate further technical scheme of the present invention and effect:
Embodiment one: inlet flue gas SO
2Concentration 1,200mg/Nm
3
Exhaust gas volumn 1,900,000Nm
3/ h (suitable approximately 600MW coal steam-electric plant smoke amount)
Washing tower sieve-plate tower
Washing seawater flow 64,000m
3/ h
Seawater total flow 80,000m
3/ h
Outlet flue gas SO
2Concentration 120mg/Nm
3(desulfurization degree 90%)
Draining pH＞6.8
Draining COD increment＜4.5mg/l
Embodiment two:
Exhaust gas volumn 1,900,000Nm
3/ h
The hollow liquid column tower of washing tower
Washing seawater flow 40,000m
3/ h
Seawater total flow 75,000m
3/ h
Embodiment three:
Exhaust gas volumn 1,000,000Nm
3/ h (suitable approximately 300MW coal steam-electric plant smoke amount)
The hollow liquid column tower of washing tower
Washing seawater flow 15,000m
3/ h
Seawater total flow 45,000m
3/ h
Embodiment four:
Exhaust gas volumn 700,000Nm
3/ h
Washing tower sieve-plate tower
Washing seawater flow 11,000m
3/ h
Seawater total flow 28,600m
3/ h
The advantage of the inventive method is, has improved the anticorrosion of full sea water method flue gas desulfurization process system with anti-The runnability that stops up has reduced system cost and operating cost.
Claims (2)
1, a kind of process for desulfurizing industrial fume with seawater, it comprises that the part with total seawater water yield that is used for desulfurization is sent to scrubbing tower washing acidic gas in flue gas, to wash acid seawater and the remainder sea water mixing that is not used to wash sour gas behind the sour gas again, then this mixed seawater is blasted air, so that seawater discharges after reaching environmental quality requirement, it is characterized in that the water yield that is used to wash this a part of seawater of sour gas is 1/3～4/5 of a Total Water.
2, sulfur method according to claim 1 is characterized in that; PH value 〉=4 after the acid seawater of washing behind the sour gas and the remainder sea water mixing that is not used to wash sour gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99114641 CN1262145A (en) | 1999-01-26 | 1999-01-26 | Process for desulfurizing industrial fume with seawater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99114641 CN1262145A (en) | 1999-01-26 | 1999-01-26 | Process for desulfurizing industrial fume with seawater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1262145A true CN1262145A (en) | 2000-08-09 |
Family
ID=5277697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99114641 Pending CN1262145A (en) | 1999-01-26 | 1999-01-26 | Process for desulfurizing industrial fume with seawater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1262145A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100336579C (en) * | 2003-11-11 | 2007-09-12 | 兰特杰斯股份有限公司 | Method and installation for purifying gas |
| WO2009149603A1 (en) * | 2008-06-13 | 2009-12-17 | Peng Sigan | A method and device for desulfurization of the smoke discharged from ship |
| CN102985370A (en) * | 2010-08-06 | 2013-03-20 | 三菱重工业株式会社 | Aeration apparatus, seawater flue gas desulphurization apparatus including the same, and humidification method for aeration apparatus |
| CN103068738A (en) * | 2011-01-21 | 2013-04-24 | 三菱重工业株式会社 | Aeration apparatus, seawater flue gas desulphurization apparatus including the same, and operation method of aeration apparatus |
| CN103068739A (en) * | 2011-01-21 | 2013-04-24 | 三菱重工业株式会社 | Aeration device, seawater flue-gas-desulfurization device provided with same, and method for operating aeration device |
| CN103702946A (en) * | 2011-07-01 | 2014-04-02 | 彭斯干 | Method and apparatus for processing acidic sea water |
| JP2014133551A (en) * | 2012-12-10 | 2014-07-24 | Shin Kurushima Dockyard Co Ltd | SOx REDUCTION SHIP |
| WO2017210956A1 (en) * | 2016-06-11 | 2017-12-14 | 彭斯干 | Method and equipment for carbon capture and sequestration with seawater |
-
1999
- 1999-01-26 CN CN 99114641 patent/CN1262145A/en active Pending
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100336579C (en) * | 2003-11-11 | 2007-09-12 | 兰特杰斯股份有限公司 | Method and installation for purifying gas |
| WO2009149603A1 (en) * | 2008-06-13 | 2009-12-17 | Peng Sigan | A method and device for desulfurization of the smoke discharged from ship |
| US8038774B2 (en) | 2008-06-13 | 2011-10-18 | Sigan Peng | Ship flue gas desulphurization method and equipment |
| CN102985370A (en) * | 2010-08-06 | 2013-03-20 | 三菱重工业株式会社 | Aeration apparatus, seawater flue gas desulphurization apparatus including the same, and humidification method for aeration apparatus |
| CN102985370B (en) * | 2010-08-06 | 2015-11-25 | 三菱日立电力系统株式会社 | Ventilation unit and possess the device for desulfurizing flue gas by seawater of this device, the air-humidification method of ventilation unit |
| CN103068738B (en) * | 2011-01-21 | 2014-11-26 | 三菱重工业株式会社 | Aeration apparatus, seawater flue gas desulphurization apparatus including the same, and operation method of aeration apparatus |
| CN103068739B (en) * | 2011-01-21 | 2014-07-02 | 三菱重工业株式会社 | Aeration device, seawater flue-gas-desulfurization device provided with same, and method for operating aeration device |
| CN103068739A (en) * | 2011-01-21 | 2013-04-24 | 三菱重工业株式会社 | Aeration device, seawater flue-gas-desulfurization device provided with same, and method for operating aeration device |
| CN103068738A (en) * | 2011-01-21 | 2013-04-24 | 三菱重工业株式会社 | Aeration apparatus, seawater flue gas desulphurization apparatus including the same, and operation method of aeration apparatus |
| CN103702946A (en) * | 2011-07-01 | 2014-04-02 | 彭斯干 | Method and apparatus for processing acidic sea water |
| CN103702946B (en) * | 2011-07-01 | 2016-03-09 | 彭斯干 | Acid method of seawater treatment and equipment |
| JP2014133551A (en) * | 2012-12-10 | 2014-07-24 | Shin Kurushima Dockyard Co Ltd | SOx REDUCTION SHIP |
| WO2017210956A1 (en) * | 2016-06-11 | 2017-12-14 | 彭斯干 | Method and equipment for carbon capture and sequestration with seawater |
| US11045758B2 (en) | 2016-06-11 | 2021-06-29 | Zero Carbon Energy Innovation Union Inc | Process and apparatus of ocean carbon capture and storage |
| US11648507B2 (en) | 2016-06-11 | 2023-05-16 | Zero Carbon Energy Innovation Union Inc | Process and apparatus of ocean carbon capture and storage |
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| WD01 | Invention patent application deemed withdrawn after publication |