CN104923056A - Marine exhaust gas desulfurization unit and method - Google Patents
Marine exhaust gas desulfurization unit and method Download PDFInfo
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- CN104923056A CN104923056A CN201510363053.4A CN201510363053A CN104923056A CN 104923056 A CN104923056 A CN 104923056A CN 201510363053 A CN201510363053 A CN 201510363053A CN 104923056 A CN104923056 A CN 104923056A
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- sea water
- seawater
- marine exhaust
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Abstract
The invention discloses a marine exhaust gas desulfurization unit and method and belongs to the technical field of air pollution control. The marine exhaust gas desulfurization unit comprises a washing column, a seawater mixing cabinet and an aeration tank. The seawater mixing tank is provided with an alkali inlet at the top and provided with a mixer inside. A water inlet of the seawater mixing cabinet is connected with a seawater pump I. A water outlet of the seawater mixing cabinet is connected with a sprinkler provided within the washing column, through an alkali pump. The sprinkler is further connected with a seawater pump II. A washing water outlet is connected with a water inlet of a sludge separator. A sludge outlet provided in the lower portion of the sludge separator is connected with a sludge cabinet. A water outlet provided in the upper portion of the sludge separator is connected with an inlet of the aeration tank. A water outlet of the aeration tank is connected with a discharge pipe. The aeration tank is further provided with a seawater inlet which is connected with a seawater pump III. The marine exhaust gas desulfurization unit can run long in marine sailing, is high in practicality, economy and safety and meets the requirement on emission in different sea areas under different conditions.
Description
Technical field
The present invention relates to boats and ships and cause atmosphere polluting controling technology field, be specifically related to a kind of marine exhaust desulfurizer.
Background technology
Under the trend of economic globalization, international trade cooperation strengthens day by day, and foreign-going ship quantity increases day by day.Foreign-going ship presently more than 90% adopts diesel engine as major impetus, and most of boat diesel engine all uses cheap heavy oil.Although heavy oil combustion provides cost savings, the marine exhaust pollution problem meanwhile produced is also day by day serious, and especially boats and ships sulfur oxide contamination, has had a strong impact on the atmospheric environment of coastal area.
In order to reduce the pollution of marine exhaust sulphur oxide to atmospheric environment, International Maritime Organization and European and American developed countries have promulgated the regulation controlling boats and ships sulfur oxides emissions in succession.MARPOL pact supplemental provisions VI specifies, in general marine site, from January 1st, 2012 and afterwards, and the sulphur content content≤3.5%m/m of fuel oil; The year two thousand twenty January 1 and afterwards, the sulphur content content≤0.5%m/m of fuel oil; The boats and ships of navigation in emission control district (ECA), from January 1st, 2015 and afterwards, the sulphur content content≤0.1%m/m of fuel oil; In addition, European Union's decree also specifies to berth at European Union harbour the boats and ships more than 2 hours from 1 day January in 2010, and Fuel Oil Sulfur content must not be used more than the fuel oil (be not suitable for and cut off all machines and the boats and ships using bank electricity) of 0.1%m/m.The air resource committee of the California of the U.S. has also made similar regulation to marine fuel oil sulfur content, start from January 1st, 2012, boats and ships water-area navigation in distance 24 nautical miles, coastline, California must not use Fuel Oil Sulfur content more than the fuel oil of 0.1%m/m.For the Abgasgesetz that reply is further strict, spot ship uses the method for Low Sulfur Fuel Oil instead before gradually adopting and entering ECA, makes ship tail gas discharge the sulphur emissions requirement meeting relevant marine site.But due to the viscosity of Low Sulfur Fuel Oil lower, too low viscosity to make between fuel injection equipment precision pair the unstable wear because of insufficient lubrication even kill, and the pumpability of light viscosity oil is poor, have impact on economy and the security of ship's navigation.At present, indivedual shipping enterprises of American-European countries start to attempt installing exhaust aftertreatment equipment additional for boats and ships, and the desulfuration efficiency of the method is higher, economy and security good, be subject to the favor of more and more ship equipment manufacturer and shipping enterprise.
In recent years, domestic and international Ge great shipborne equipment company and scientific research institutions all increase the investment to marine exhaust desulfur technology, emerge a lot about the patent of marine exhaust desulfur technology, as: in patent " a kind of equipment of boat diesel engine waste gas washing desulphurization " (patent No. CN103331093B), use fresh water to mix the absorbing liquid generated with NaOH and absorb SO in waste gas
x.But boats and ships freshwater resources are in short supply, manufacture fresh water efficiency with fresh water generator low and costly.So use fresh water significantly can improve the use cost of desulfurizer.And due to fresh water amount limited, desulfurizer in the use of emission control district short time, can only can not meet the desulfurization requirement of boats and ships long-time continuous under non-emission control district operational configuration.In patent " scrubber system and method " (patent No. CN103842051A), open type, enclosed and hybrid three kinds of desulfurization mode of operations are proposed, the method improves the adaptability of device to a certain extent, but along with ship navigation state changes, SOx content significant change in waste gas, this device cannot regulate the consumption of spray washing liquid in real time, have impact on flexibility and the economy of device.More crucially, under open type desulfurization pattern, the pH value of scrubbing tower effluent discharge is about 3.5, obviously do not meet the wet scrubbing waste liquid pH value required by IMO higher than 6.5 regulation.In patent " magnesium base-seawater method desulfurization system for ship " (patent No. CN102120138A), MgO powder is proposed to add in slurry tank, stir through Steam Heating and motor, MgO and seawater react obtained Mg (OH) 2, after be delivered in desulfurization washing tower through a pulp lifter pump point multichannel, the SOx undertaken in multistage Mg (OH) 2 size circulations chilling spray and flue gas by spray pump castering action is reacted, improve the absorptivity of natural sea-water SOx, the desulfuration efficiency of the method is higher, but there is sulfur removal technology complexity, desulfurizing agent is expensive and with problems such as ship memory space are large.
Summary of the invention
The present invention is directed to the proposition of above problem, and a kind of marine exhaust desulfurizer of research and design and method.The technological means that the present invention adopts is as follows:
A kind of marine exhaust desulfurizer, comprise scrubbing tower, described scrubbing tower bottom is provided with air inlet and washings outlet, top is provided with gas outlet, also comprise sea water mixing cabinet and aeration tank, described sea water mixing is cashier's office in a shop just provided with and adds alkali mouth, inside is provided with agitator, the water inlet of sea water mixing cabinet is connected with sea water pump I, the delivery port of sea water mixing cabinet is connected with the spray equipment in scrubbing tower by adding alkali pump, spray equipment is also connected with sea water pump II, described spray equipment is arranged at the below of gas outlet, described washings outlet is connected with the water inlet of sludge separation apparatus, the mud discharging mouth of the bottom of described sludge separation apparatus is connected with sludge tank, the delivery port on sludge separation apparatus top is connected with the water inlet of aeration tank, the delivery port of described aeration tank is connected with delivery pipe, aeration tank is also provided with into seawater mouth, described enter seawater mouth be connected with sea water pump III.
Further, described sludge separation apparatus is centrifugal separating device.
Further, described gas outlet place is provided with SO
xanalyzer, described delivery pipe is provided with the draining checkout gear that can detect pH value, described SO
xanalyzer and draining checkout gear are connected with control feedback device, described control feedback device with add alkali pump and be connected, control adds the liquid supply rate of alkali pump.
A kind of marine exhaust sulfur method, adopts marine exhaust desulfurizer of the present invention, comprises the following steps:
1. in sea water mixing cabinet, inject seawater, soda is dropped into sea water mixing cabinet, be made into soda sea water solution;
2. the spray equipment using the soda sea water solution mixing seawater of preparation to inject scrubbing tower as spray liquid sprays marine exhaust;
3. the waste gas after spray process enters air, the spray liquid after spray is entered sludge separation apparatus and carries out mud separation, mud is entered sludge tank, carrying out Air Exposure, entering sea by delivery pipe to entering aeration tank after the liquid mixing seawater after separation.
Further, the pH value of described soda sea water solution is 10 ~ 13, and the pH value of described spray liquid is 8 ~ 10.
Further, the liquid that the gas of discharge gas outlet place and delivery pipe are discharged detects, inject the amount of scrubbing tower according to testing result to soda sea water solution to regulate, until the pH value of liquid that delivery pipe is discharged is 6.5 ~ 7.5 and SO in the gas of discharging of gas outlet
xwith CO
2volume ratio not higher than 4.3 × 10
-4.
Compared with the prior art, a kind of marine exhaust desulfurizer of the present invention and method have following beneficial effect:
1, the present invention by adding finite concentration soda seawater pre-configured on a small quantity in shower, suitably improves the pH value of sprayed sea water.Both enhance natural sea-water and absorb SO
xability, make again the washings pH value of discharge be greater than 6.5, meet IMO to wet scrubbing waste liquid pH value higher than 6.5 regulation.
2, apparatus of the present invention use seawater spraying all the time in running, can the work of long-time continuous when ship's navigation.And just can meet the emission request of IMO to wet scrubbing waste liquid when not needing use fresh water.Device is practical, good economy performance.
3, the present invention can according to SO
xsO in the waste gas that analyzer detects
xthe washings pH signal that concentration signal and draining checkout gear detect, regulates and adds the liquid supply rate of alkali pump to shower, add flexibility and the adaptability of device, thus make this device can meet the emission request of boats and ships under different waters, operating mode.
4, the soda market price is low, and operationally only a small amount of soda need be used just can to improve the pH value of sprayed sea water largely, and little with ship memory space, equipment safety is high, good economy performance.
Accompanying drawing explanation
Fig. 1 is marine exhaust desulfurizer structural representation of the present invention.
Detailed description of the invention
As shown in Figure 1, a kind of marine exhaust desulfurizer, comprise scrubbing tower 1, also comprise sea water mixing cabinet 2 and aeration tank 3, described scrubbing tower 1 bottom is provided with air inlet 4 and washings outlet 5, top is provided with gas outlet 6, be provided with above described sea water mixing cabinet 2 and add alkali mouth 7, inside is provided with agitator 8, the water inlet of sea water mixing cabinet 2 is connected with sea water pump I 9, the delivery port of sea water mixing cabinet 2 is connected with the spray equipment 11 in scrubbing tower 1 by adding alkali pump 10, spray equipment 11 is also connected with sea water pump II 12, described spray equipment 11 is arranged at the below of gas outlet 6, described washings outlet 5 is connected with the water inlet of sludge separation apparatus 13, the mud discharging mouth 14 of the bottom of described sludge separation apparatus 13 is connected with sludge tank 15, the delivery port on sludge separation apparatus 13 top is connected with the water inlet of aeration tank 3, the delivery port of described aeration tank 3 is connected with delivery pipe 16, aeration tank 3 is also provided with into seawater mouth 17, described enter seawater mouth 17 be connected with sea water pump III 18.
Described sludge separation apparatus 13 is centrifugal separating device.
Described gas outlet 6 place is provided with SO
xanalyzer, described delivery pipe 16 is provided with the draining checkout gear that can detect pH value, described SO
xanalyzer and draining checkout gear are connected with control feedback device 19, described control feedback device 19 with add alkali pump 10 and be connected, control adds the liquid supply rate of alkali pump 10.
A kind of marine exhaust sulfur method, adopts marine exhaust desulfurizer of the present invention, comprises the following steps:
1. in sea water mixing cabinet 2, inject seawater, soda is dropped into sea water mixing cabinet 2, be made into soda sea water solution, the pH value of described soda sea water solution is 10 ~ 13, and mixed process can produce precipitation, the following chemical reaction of main generation:
Mg
2++2OH
-→Mg(OH)
2(↓)
Ca
2++2OH
-→Ca(OH)
2(↓)
2. the spray equipment 11 pairs of marine exhausts using the soda sea water solution mixing seawater of preparation to inject scrubbing tower 1 as spray liquid spray, the pH value of spray liquid is 8 ~ 10, a small amount of deposit seed is had in spray liquid, in scrubbing tower 1, desulfurization process is carried out to marine exhaust, following chemical reaction occurs:
SO
2(g)→SO
2(l)
SO
3(g)→SO
3(l)
SO
2(l)+H
2O→SO
3 2-+2H
2+
SO
3(l)+H
2O→SO
4 2-+2H
2+
Mg
2++SO
3 2-→MgSO
3
Mg
2++SO
4 2-→MgSO
4
Ca
2++SO
3 2-→CaSO
3(↓)
Ca
2++SO
4 2-→CaSO
4(↓)
SO in waste gas
xremoved by washing, the pH value of scrub raffinate becomes the scope of 6.5-7.5;
3. the waste gas after spray process enters air, scrub raffinate liquid after spray is entered sludge separation apparatus 13 and carries out mud separation, mud is entered sludge tank 15, carry out Air Exposure to entering aeration tank 3 after the liquid mixing seawater after separation, the impurity such as the sulphite sediment that in scrub raffinate, particle and washing produce enter sludge tank 15 and store after sludge separation apparatus 13 centrifugal treating.The sulphite dissolved in cleaning solution carries out Air Exposure through aeration tank 3, and can select to open sea water pump III 18 according to cleaning solution concentration, by cleaning solution and sea water mixing aeration, chemical reaction as follows occurs aeration process:
2MgSO
3+O
2→2MgSO
4
2CaSO
3+O
2→2CaSO
4(↓)
After above-mentioned a series of process, boat diesel engine waste gas achieves effective desulfurizing and purifying, SO
xconcentration waste gas up to standard enters air.Washing after waste liquid pH value be greater than 6.5, meet IMO to wet scrubbing waste liquid pH value higher than 6.5 regulation.Scrub raffinate sulfite salt is oxidized to stable sulfate liquor, then enters sea after the natural sea-water mixed diluting above-mentioned solution and sea water pump 13 pumped into.
The liquid that the gas of discharge gas outlet place and delivery pipe are discharged detects, and regulates the amount that soda sea water solution injects scrubbing tower according to testing result, until the pH value of the liquid of delivery pipe discharge is 6.5 ~ 7.5, and SO in the gas that gas outlet is discharged
xcontent not higher than 4.3SO
x(ppm)/CO
2(%v/v).
The above; be only the present invention's preferably detailed description of the invention; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to according to technical scheme of the present invention and inventive concept thereof and replace or change, all should be encompassed within protection scope of the present invention.
Claims (6)
1. a marine exhaust desulfurizer, comprise scrubbing tower, described scrubbing tower bottom is provided with air inlet and washings outlet, top is provided with gas outlet, it is characterized in that: also comprise sea water mixing cabinet and aeration tank, described sea water mixing is cashier's office in a shop just provided with and adds alkali mouth, inside is provided with agitator, the water inlet of sea water mixing cabinet is connected with sea water pump I, the delivery port of sea water mixing cabinet is connected with the spray equipment in scrubbing tower by adding alkali pump, spray equipment is also connected with sea water pump II, described spray equipment is arranged at the below of gas outlet, described washings outlet is connected with the water inlet of sludge separation apparatus, the mud discharging mouth of the bottom of described sludge separation apparatus is connected with sludge tank, the delivery port on sludge separation apparatus top is connected with the water inlet of aeration tank, the delivery port of described aeration tank is connected with delivery pipe, aeration tank is also provided with into seawater mouth, described enter seawater mouth be connected with sea water pump III.
2. marine exhaust desulfurizer according to claim 1, is characterized in that: described sludge separation apparatus is centrifugal separating device.
3. marine exhaust desulfurizer according to claim 1, is characterized in that: described gas outlet place is provided with SO
xanalyzer, described delivery pipe is provided with the draining checkout gear that can detect pH value, described SO
xanalyzer and draining checkout gear are connected with control feedback device, described control feedback device with add alkali pump and be connected, control adds the liquid supply rate of alkali pump.
4. a marine exhaust sulfur method, adopts as the marine exhaust desulfurizer in claim 1-2 as described in any one, it is characterized in that: comprise the following steps:
1. in sea water mixing cabinet, inject seawater, soda is dropped into sea water mixing cabinet, be made into soda sea water solution;
2. the spray equipment using the soda sea water solution mixing seawater of preparation to inject scrubbing tower as spray liquid sprays marine exhaust;
3. the waste gas after spray process enters air, the spray liquid after spray is entered sludge separation apparatus and carries out mud separation, mud is entered sludge tank, carrying out Air Exposure, entering sea by delivery pipe to entering aeration tank after the liquid mixing seawater after separation.
5. marine exhaust sulfur method according to claim 4, is characterized in that: the pH value of described soda sea water solution is 10 ~ 13, and the pH value of described spray liquid is 8 ~ 10.
6. the marine exhaust sulfur method according to claim 4 or 5, it is characterized in that: the liquid that the gas of discharge gas outlet place and delivery pipe are discharged detects, inject the amount of scrubbing tower according to testing result to soda sea water solution to regulate, until the pH value of liquid that delivery pipe is discharged is 6.5 ~ 7.5 and SO in the gas of discharging of gas outlet
xwith CO
2volume ratio not higher than 4.3 × 10
-4.
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|---|---|---|---|
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|---|---|---|---|
| CN201510363053.4A CN104923056A (en) | 2015-06-26 | 2015-06-26 | Marine exhaust gas desulfurization unit and method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105749722A (en) * | 2016-04-18 | 2016-07-13 | 大连海事大学 | Novel device and novel method for desulfurization washing of marine diesel exhaust |
| CN105879677A (en) * | 2016-04-18 | 2016-08-24 | 大连海事大学 | Marine diesel engine exhaust gas desulfurization method and device based on sodium alkali seawater |
| CN106310942A (en) * | 2016-10-31 | 2017-01-11 | 许仁忠 | Treating device for engine exhaust emission of vehicle or mechanical engineering |
| EP3243560A1 (en) * | 2016-05-11 | 2017-11-15 | Yara Marine Technologies AS | Desulphurization of marine exhaust flue gas |
| CN108704465A (en) * | 2018-05-30 | 2018-10-26 | 华中科技大学 | Vacuum ultraviolet cooperates with effective chlorine for the method and device of flue gas and desulfurizing and denitrifying |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102120138A (en) * | 2011-02-17 | 2011-07-13 | 大连海事大学 | Magnesium base-seawater method desulfurization system for ship |
| CN102309912A (en) * | 2010-07-06 | 2012-01-11 | 同方环境股份有限公司 | Device and method for performing alkali desulfurization and dust removal on ship exhaust fume |
| CN103331093A (en) * | 2013-06-26 | 2013-10-02 | 哈尔滨工程大学 | Device for washing and desulfurating waste gas of marine diesel engine |
| EP2659947A1 (en) * | 2012-04-30 | 2013-11-06 | Linde Aktiengesellschaft | Method and apparatus for removing contaminants from exhaust gases |
| CA2886800A1 (en) * | 2012-10-11 | 2014-04-17 | Mitsubishi Heavy Industries, Ltd. | Air pollution control system and air pollution control method |
| JP2015080755A (en) * | 2013-10-22 | 2015-04-27 | 三菱化工機株式会社 | Exhaust gas purification device for ship, and purification method of the same |
-
2015
- 2015-06-26 CN CN201510363053.4A patent/CN104923056A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102309912A (en) * | 2010-07-06 | 2012-01-11 | 同方环境股份有限公司 | Device and method for performing alkali desulfurization and dust removal on ship exhaust fume |
| CN102120138A (en) * | 2011-02-17 | 2011-07-13 | 大连海事大学 | Magnesium base-seawater method desulfurization system for ship |
| EP2659947A1 (en) * | 2012-04-30 | 2013-11-06 | Linde Aktiengesellschaft | Method and apparatus for removing contaminants from exhaust gases |
| CA2886800A1 (en) * | 2012-10-11 | 2014-04-17 | Mitsubishi Heavy Industries, Ltd. | Air pollution control system and air pollution control method |
| CN103331093A (en) * | 2013-06-26 | 2013-10-02 | 哈尔滨工程大学 | Device for washing and desulfurating waste gas of marine diesel engine |
| JP2015080755A (en) * | 2013-10-22 | 2015-04-27 | 三菱化工機株式会社 | Exhaust gas purification device for ship, and purification method of the same |
Non-Patent Citations (1)
| Title |
|---|
| 上海市经济团体联合会 等: "《节能减排工程技术与应用案例》", 31 May 2010 * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105749722A (en) * | 2016-04-18 | 2016-07-13 | 大连海事大学 | Novel device and novel method for desulfurization washing of marine diesel exhaust |
| CN105879677A (en) * | 2016-04-18 | 2016-08-24 | 大连海事大学 | Marine diesel engine exhaust gas desulfurization method and device based on sodium alkali seawater |
| EP3243560A1 (en) * | 2016-05-11 | 2017-11-15 | Yara Marine Technologies AS | Desulphurization of marine exhaust flue gas |
| WO2017194645A1 (en) * | 2016-05-11 | 2017-11-16 | Yara Marine Technologies As | Desulphurization of marine exhaust flue gas |
| JP2019514678A (en) * | 2016-05-11 | 2019-06-06 | ヤラ マリン テクノロジーズ エーエスＹａｒａ Ｍａｒｉｎｅ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ａｓ | Desulfurization of ship exhaust gas |
| RU2740498C2 (en) * | 2016-05-11 | 2021-01-14 | Яра Марин Текнолоджис Ас | Desulphurisation of waste gas of sea vessels |
| US11052344B2 (en) | 2016-05-11 | 2021-07-06 | Yara Marine Technologies As | Desulphurization of marine exhaust flue gas |
| CN106310942A (en) * | 2016-10-31 | 2017-01-11 | 许仁忠 | Treating device for engine exhaust emission of vehicle or mechanical engineering |
| CN108704465A (en) * | 2018-05-30 | 2018-10-26 | 华中科技大学 | Vacuum ultraviolet cooperates with effective chlorine for the method and device of flue gas and desulfurizing and denitrifying |
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Application publication date: 20150923 |