CN106984161A - A kind of marine exhaust pollutant and ballast water integrated conduct method and device - Google Patents
A kind of marine exhaust pollutant and ballast water integrated conduct method and device Download PDFInfo
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- CN106984161A CN106984161A CN201710423188.4A CN201710423188A CN106984161A CN 106984161 A CN106984161 A CN 106984161A CN 201710423188 A CN201710423188 A CN 201710423188A CN 106984161 A CN106984161 A CN 106984161A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/50—Sulfur oxides
- B01D53/501—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound
- B01D53/502—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound characterised by a specific solution or suspension
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/60—Simultaneously removing sulfur oxides and nitrogen oxides
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/76—Treatment of water, waste water, or sewage by oxidation with halogens or compounds of halogens
- C02F1/766—Treatment of water, waste water, or sewage by oxidation with halogens or compounds of halogens by means of halogens other than chlorine or of halogenated compounds containing halogen other than chlorine
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/10—Oxidants
- B01D2251/108—Halogens or halogen compounds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/30—Alkali metal compounds
- B01D2251/304—Alkali metal compounds of sodium
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/40—Alkaline earth metal or magnesium compounds
- B01D2251/402—Alkaline earth metal or magnesium compounds of magnesium
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01D2251/00—Reactants
- B01D2251/60—Inorganic bases or salts
- B01D2251/604—Hydroxides
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/01—Engine exhaust gases
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/01—Engine exhaust gases
- B01D2258/012—Diesel engines and lean burn gasoline engines
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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Abstract
The invention discloses a kind of marine exhaust pollutant and ballast water integrated conduct method and device, described device includes water pump I, oxidizer containing chlorine cabinet, alkali lye cabinet, fresh water tank, water pump VI, seawater pipe, hydrocyclone, sludge tank, water pump V, main washing lotion tube, water pump II, water tank, waste liquid storage cabinet, ballast tank, water pump III, main jet shower pipe, water pump IV, agitator, scrubbing tower, cooler, waste liquid discharge pipe, stop valve I, stop valve II, stop valve III, triple valve and stop valve IV.Marine exhaust pollutant disposal system proposed by the invention uses wet scrubbing technology, is divided into independent desulfurization, two kinds of different working modes of simultaneous SO_2 and NO removal, wherein independent desulphation mode can take two kinds of different wet scrubbing modes of enclosed and open type again.According to different emission requests of the trading limit to exhaust emission, free switching mode of operation and mode, operation are easy to operate, substantially increase the integrated level, reliability and flexibility of system.
Description
Technical field
Prevention and control of air pollution and ballast water treatment technical field are caused the invention belongs to ship, and in particular to a kind of ship gives up
Gas pollutant and ballast water integrated conduct method and device.
Background technology
In recent years, global Seaborne trade cause is continued to develop, and is transported using large-sized low-speed diesel engine as the ocean of power set
The average tonnage of defeated ship is in increase, and quantity is declined slightly.In order to reduce cost of transportation, marine diesel typically uses oil
Residue oil inferior in refining process is fuel, and its sulfur content is high, viscosity is big, carbon residue is higher, contains in the waste gas after burning
There is substantial amounts of nitrogen oxides (NOx), oxysulfide (SOx), the multiple pollutant such as particulate matter (PM), to human health and big compression ring
Border causes adverse effect.
In order to control the discharge of marine diesel exhaust emission, in recent years, domestic and international researcher is in marine diesel
A large amount of R＆D works are carried out in terms of exhaust gas treatment technology, it is proposed that many marine exhaust Pollutant Control Technologys.Such as：The patent No.
201620788920.9《A kind of selective-catalytic-reduction denitrified system》, denitration, but this method are carried out to flue gas using SCR method
There are problems that big plant bulk, the escaping of ammonia, catalyst are easy, there is certain be stranded using upper in marine exhaust denitration
It is difficult；The patent No. 201510721307.5《A kind of SNCR-SCR flue-gas denitration process》, propose the inexpensive feature of SNCR techniques
Organically combined with the high denitration efficiency of SCR techniques, improve denitration efficiency, and escape ammonia amount is small, but this method is still suffered from and accounted for
Big, the weak point such as investment operation cost height with space；The patent No. 201310116629.8《Sodium alkali chemical absorbing-non-thermal is put
Electric simultaneous SO_2 and NO removal system》, by the way that non-thermal plasma electric discharge pre-oxidation is combined with soda absorption techniques, to reach ship
Waste gas simultaneous SO_2 and NO removal purpose, but this method is present that plasma energy consumption is higher, the more low obvious problem of denitration efficiency.
At present, International Maritime Organization (IMO) is for SO in marine exhaustxAnd NOxEmission control require it is more and more stricter,
Tailor MARPOL pacts supplemental provisions VI.How according to different navigation areas, the specific requirement of different operating modes, using difference
Desulphurization denitration mode of operation and mode, how while emission request is met, realize the reduction of operation cost, and system
Integrated level, reliability and the raising of flexibility, these problems turn into current Shipping industry urgent problem to be solved.Mesh
Preceding existing marine exhaust wet scrubbing technology can have been realized to the SO in flue gasxHigh-efficiency desulfurization, such as soda seawater method, magnesium-based
The wet scrubbing post-processing technology such as seawater method, they, as additive, are imitated using soda or magnesium hydroxide with good desulfurization
Really, but these marine exhaust wet scrubbing technologies denitration effect it is unobvious.There is patent to propose to prepare strong oxygen using electrolytic seawater
The property changed solution and strong alkali solution, while realizing to NO in marine exhaustx、SOx, the multiple pollutant such as particulate matter wet scrubbing
Processing, but this method needs the higher electric energy of consumption, limits the feasibility of correlation technique.Also patent proposes using waste gas again
The technology of circulation, that is, first pass through wet scrubbing mode and remove SOx, then make part handle after waste gas mixed with fresh air it is laggard
Enter diesel engine, NO is reduced by the method for reducing burning chamber of diesel engine internal-combustion temperaturexGrowing amount, but the desulfurization effect of the technology
Fruit depends on bypass exhaust amount, and can reduce the thermal efficiency of diesel engine, causes the increase of HC and CO discharge capacitys.
The content of the invention
Transport by sea ship is given up in the different navigating areas such as high sea, coastal waters and emission control area to meet MARPOL pacts
Gas pollutant emission requirement, the problem of existing for above-mentioned technology, the present invention proposes a kind of marine exhaust pollutant and ballast water
Integrated conduct method.This method is a kind of new wet scrubbing technology, is divided into independent desulfurization, two kinds of differences of simultaneous SO_2 and NO removal
Mode of operation.Wherein independent desulphation mode can take two kinds of different wet scrubbing modes of enclosed and open type again.The technology can be real
Now to NO in marine exhaustx、SOx, the multiple pollutant such as particulate matter efficient removal, while containing oxychloride using what is stored with ship
The harmless treatment to ballast water can be achieved in agent.Based on this method, devise a set of marine exhaust pollutant and ballast water is integrated
Processing unit.
The technological means that the present invention is used is as follows：
A kind of marine exhaust pollutant and ballast water integrated conduct method, with following steps：
S1, appropriate alkali lye, oxidizer containing chlorine, the aqueous solution is delivered in water tank by water pump respectively, after mixing
To cleaning solution；
When carrying out desulphurization denitration processing to marine exhaust simultaneously, the ratio that the oxidizer containing chlorine accounts for the cleaning solution is big
In 0；
When only carrying out desulfurization process to marine exhaust, the ratio that the oxidizer containing chlorine accounts for the cleaning solution is 0；
S2, the cleaning solution enter to scrubbing tower by water pump from scrubbing tower top inlet, then pass through the washing
Showering washing device inside tower carries out atomizing spray from top to down, and marine exhaust to be clean is from scrubbing tower sidewall bottom air inlet
Mouth enters scrubbing tower, is reacted with atomizing spray cleaning solution by inversely contacting, so that the processing to flue gas is realized, through washing
Washing the waste gas after tower purification can be directly discharged in air through simple process；
Only marine exhaust is entered when carrying out desulphurization denitration processing to marine exhaust simultaneously or when using enclosed mode of washing
Purify after the cleaning solution after waste gas is handled through cooler cooling and returned in water tank during row desulfurization process, in scrubbing tower, the water tank
In cleaning solution remove solid impurity therein through hydrocyclone, the solution after processing is returned into water tank, and is divided
The solid impurity separated out is disposed in sludge tank；
When only carrying out desulfurization process to marine exhaust using open type mode of washing, the washing in scrubbing tower after purification waste gas
Liquid direct discharge into sea after the processing such as be simply aerated, remove slag, dilute；
S3, according to ballast water capacity in ballast tank, take appropriate oxidizer containing chlorine, add it in ballast tank, profit
Kill bacterium, algae and the other microorganisms in ballast water with the strong oxidizing property of oxidizer containing chlorine, finally by selfdecomposition or
Follow-up simple process eliminates oxidizer containing chlorine excessive in ballast water.
During handling marine exhaust, because the water in the water tank can be because of evaporation, except miscellaneous operation etc.
Loss, it is necessary to persistently supplement the aqueous solution in use, and the liquid level of cleaning solution is in normal level in the holding water tank.
The step S2 is carried out to the particulate matter in marine exhaust simultaneously during wet scrubbing is carried out to marine exhaust
Removing.
The alkali lye refers to include one kind or number in sodium hydroxide, sodium carbonate, sodium acid carbonate, magnesium hydroxide, magnesium carbonate
Plant the aqueous solution of alkali compounds；
The oxidizer containing chlorine refers to include in sodium hypochlorite, sodium chlorite, sodium chlorate, sodium perchlorate, chlorine dioxide
The aqueous solution of one or several kinds of chlorine-containing compounds；
The aqueous solution refers to fresh water or seawater.
The invention also discloses a kind of marine exhaust pollutant and ballast water Integrated Processing Unit, it is characterised in that：Including
Water pump I, oxidizer containing chlorine cabinet, alkali lye cabinet, fresh water tank, water pump VI, seawater pipe, hydrocyclone, sludge tank, water pump V, master washes
Wash liquid pipe, water pump II, water tank, waste liquid storage cabinet, ballast tank, water pump III, main jet shower pipe, water pump IV, agitator, scrubbing tower,
Cooler, waste liquid discharge pipe, stop valve I, stop valve II, stop valve III, triple valve and stop valve IV；
The oxidizer containing chlorine cabinet is connected by the water pump I with the ballast tank；
The oxidizer containing chlorine cabinet is connected by the stop valve I with the main washing lotion tube；
The alkali lye cabinet is connected by the stop valve II with the main washing lotion tube；
The fresh water tank is connected by the stop valve III with the main washing lotion tube；
The main washing lotion tube is connected by the water pump II with the water tank cleaning solution import I at the top of the water tank；
Water tank cleaning solution outlet I at the top of the water tank is connected by the water pump III with the main jet shower pipe；
The scrubbing tower inside cavity is provided with Multi-layer sprinkling device, the inlet of the spray equipment and the main jet shower pipe
Branch pipeline connection；
The scrubbing tower sidewall bottom is provided with exhaust gas inlet to be clean, and top is provided with waste gas outlet after purification, and bottom is provided with
Cleaning solution after waste gas is purified to export；
The cooler cleaning solution import that cleaning solution outlet passes through the triple valve and the cooler after the purification waste gas
Connection；
Cleaning solution outlet is connected by the triple valve with the waste liquid discharge pipe after the purification waste gas；The waste liquid row
Outlet pipe can be by direct discharge into sea after cleaning solution simple process after purification waste gas；
The cooler be provided with refrigerant flow conduit, the cooler cooler cleaning solution outlet by the water pump IV with
The water tank cleaning solution import II on the water tank top is connected；
The water tank inner bottom, which is provided with, makes the mixed uniformly agitator of cleaning solution in the water tank；
The water tank cleaning solution outlet II of the water tank side wall bottom passes through the water pump V and hydrocyclone side wall
Connection；
The water tank cleaning solution of the outlet of hydrocyclone cleaning solution and the water tank top on the hydrocyclone top enters
Mouth III is connected；
The solid impurity outlet of the hydrocyclone bottom is connected with the sludge tank；
The water tank cleaning solution outlet III of the water tank bottom is connected by the stop valve IV with the waste liquid storage cabinet；
The seawater pipe is connected by the water pump VI with the water tank cleaning solution import IV on the water tank top.
Compared with other marine exhaust treatment technologies, the present invention has advantages below：
1st, marine exhaust pollutant disposal system proposed by the invention uses wet scrubbing technology, is divided into individually de-
Sulphur, two kinds of different working modes of simultaneous SO_2 and NO removal, wherein independent desulphation mode can take two kinds of enclosed and open type different again
Wet scrubbing mode.According to different emission requests of the trading limit to exhaust emission, free switching mode of operation and side
Formula, operation is easy to operate, substantially increases the integrated level, reliability and flexibility of system；
2nd, the wet scrubbing liquid in the present invention uses alkali lye, oxidizer containing chlorine respectively as desulfurizing agent and denitration oxidant,
According to different navigation areas, the specific requirement of different operating modes, appropriate cleaning solution is chosen, marine exhaust integrated treatment is improved
Economy, enhances the practicality of device；
3rd, the present invention using the strong oxidizing property of oxidizer containing chlorine stored with ship to the bacterium in ballast water, algae and its
Its microorganism is handled, and can save the larger segregated ballast processing system of expensive, space-consuming, so as to improve ship
The economy of operation.
The present invention can extensively be pushed away in ship prevention and control of air pollution and ballast water comprehensive treatment technique field for the foregoing reasons
Extensively.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the accompanying drawing used required in technology description to do simply to introduce, it should be apparent that, drawings in the following description are this hairs
Some bright embodiments, for those of ordinary skill in the art, without having to pay creative labor, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is a kind of knot of marine exhaust pollutant and ballast water Integrated Processing Unit in embodiment of the invention
Structure schematic diagram.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
A part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
Embodiment 1
A kind of marine exhaust pollutant and ballast water integrated conduct method, when ship's navigation is in NOxWhen in emission control area,
Need to carry out desulphurization denitration processing to marine exhaust simultaneously, with following steps：
S1, appropriate alkali lye, oxidizer containing chlorine, the aqueous solution is delivered in water tank by water pump respectively, after mixing
To cleaning solution；
The alkali lye refers to include one kind or number in sodium hydroxide, sodium carbonate, sodium acid carbonate, magnesium hydroxide, magnesium carbonate
Plant the aqueous solution of alkali compounds；
The oxidizer containing chlorine refers to include in sodium hypochlorite, sodium chlorite, sodium chlorate, sodium perchlorate, chlorine dioxide
The aqueous solution of one or several kinds of chlorine-containing compounds；
The aqueous solution refers to fresh water or seawater.
S2, the cleaning solution enter to scrubbing tower by water pump from scrubbing tower top inlet, then pass through the washing
Showering washing device inside tower carries out atomizing spray from top to down, and marine exhaust to be clean is from scrubbing tower sidewall bottom air inlet
Mouth enters scrubbing tower, is reacted with atomizing spray cleaning solution by inversely contacting, so that the processing to flue gas is realized, through washing
Washing the waste gas after tower purification can be directly discharged in air through simple process；The cleaning solution after waste gas is purified in scrubbing tower through cold
But returned to after device cooling processing in water tank, the cleaning solution in the water tank removes solid impurity therein, place through hydrocyclone
Solution after reason is returned into water tank, and the solid impurity isolated is disposed in sludge tank；
Main desulfurizing agent in the cleaning solution is alkali lye, and in scrubbing tower, desulfurizing agent is inversely contacted with waste gas to be clean
And react, the chemical reaction being related to is as follows：
SO2(g)→SO2(l)；
SO2(l)+2OH-(l)→SO3 2-(l)+H2O(l)；
SO3(l)+2OH-(l)→SO4 2-(l)+H2O(l)；
When the oxidizer containing chlorine is sodium hypochlorite, the main component of its effective chlorine is Cl2、HClO、ClO-, in washing
In tower, inversely contact and react with waste gas to be clean, be related to desulfurization and denitrification reaction as follows：
SO2(g)→SO2(l)；
SO2(l)+H2O(l)→H+(l)+HSO3 -(l)；
SO2(l)+3OH-(l)→H2O(l)+SO3 2-(l)；
HClO(l)+HSO3 -(l)→SO4 2-(l)+2H+(l)+Cl-(l)；
ClO-(l)+HSO3 -(l)→SO4 2-(l)+H+(l)+Cl-(l)；
NO(g)→NO(l)；
When the oxidizer containing chlorine is sodium chlorite, the main component of its effective chlorine is ClO2 -、ClO2, the desulfurization being related to
Denitration reaction is as follows：
SO2(g)→SO2(l)；
SO2(l)+H2O(l)→H+(l)+HSO3 -(l)；
SO2(l)+3OH-(l)→H2O(l)+SO3 2-(l)；
ClO2 -(l)+2HSO3 -(l)→2SO4 2-(l)+2H+(l)+Cl-(l)；
ClO2 -(l)+2SO3 2-(l)+2OH-→2SO4 2-(l)+2H2O(l)+Cl-(l)；
NO(g)→NO(l)；
2NO(l)+ClO2 -(l)→Cl-(l)+2NO2(l)；
NO(l)+NO2+H2O(l)→2HNO2(l)；
4NO(l)+ClO2 -(l)+4OH-(l)→4NO3 -(l)+Cl-(l)+2H2O(l)；
4NO(l)+3ClO2 -(l)+2H2O(l)→4HNO3(l)+3Cl-(l)；
5NO(l)+3ClO2(l)+4H2O(l)→5HNO3(l)+3HCl(l)；
When the oxidizer containing chlorine is sodium chlorate, the main component of its effective chlorine is ClO3 -, the desulphurization denitration being related to is anti-
Should be as follows：
SO2(g)→SO2(l)；
SO2(l)+H2O(l)→H+(l)+HSO3 -(l)；
SO2(l)+3OH-(l)→H2O(l)+SO3 2-(l)；
2ClO3 -(l)+2HSO3 -(l)→2SO4 2-(l)+2H+(l)+Cl-(l)；
ClO3 -(l)+SO3 2-(l)+2OH-(l)→2SO4 2-(l)+Cl-(l)+2H2O(l)；
NO(g)→NO(l)；
3NO(l)+ClO3 -(l)→3NO2(l)+Cl-(l)；
3NO2(l)+ClO3 -(l)+OH-→3NO3 -(l)+Cl-(l)+H2O(l)；
2NO(l)+ClO3 -(l)+2OH-→2NO3 -(l)+Cl-(l)+H2O(l)；
S3, according to ballast water capacity in ballast tank, take appropriate oxidizer containing chlorine, add it in ballast tank, profit
Kill bacterium, algae and the other microorganisms in ballast water with the strong oxidizing property of oxidizer containing chlorine, finally by selfdecomposition or
Follow-up simple process eliminates oxidizer containing chlorine excessive in ballast water.
During handling marine exhaust, because the water in the water tank can be because of evaporation, except miscellaneous operation etc.
Loss, it is necessary to persistently supplement the aqueous solution in use, and the liquid level of cleaning solution is in normal level in the holding water tank.
The step S2 is carried out to the particulate matter in marine exhaust simultaneously during wet scrubbing is carried out to marine exhaust
Removing.
Embodiment 2
A kind of marine exhaust pollutant and ballast water integrated conduct method, when ship is in non-NOxWhen emission control area is navigated by water,
Desulfurization process is carried out to marine exhaust using independent desulfurization mode of operation, independent desulphation mode is divided into enclosed and open type two again
Kind of mode of washing, enclosed mode of washing is comprised the following steps that：
S1, appropriate alkali lye, the aqueous solution is delivered in water tank by water pump respectively, cleaning solution is obtained after mixing；
The alkali lye refers to include one kind or number in sodium hydroxide, sodium carbonate, sodium acid carbonate, magnesium hydroxide, magnesium carbonate
Plant the aqueous solution of alkali compounds；
The aqueous solution refers to fresh water or seawater.
S2, the cleaning solution enter to scrubbing tower by water pump from scrubbing tower top inlet, then pass through the washing
Showering washing device inside tower carries out atomizing spray from top to down, and marine exhaust to be clean is from scrubbing tower sidewall bottom air inlet
Mouth enters scrubbing tower, is reacted with atomizing spray cleaning solution by inversely contacting, so that the processing to flue gas is realized, through washing
Washing the waste gas after tower purification can be directly discharged in air through simple process；The cleaning solution after waste gas is purified in scrubbing tower through cold
But returned to after device cooling processing in water tank, the chemical reaction that the process is related to is as follows：
SO2(g)→SO2(l)；
SO2(l)+H2O(l)→H+(l)+HSO3 -(l)；
SO2(l)+3OH-(l)→H2O(l)+SO3 2-(l)；
Cleaning solution in the water tank removes solid impurity therein through hydrocyclone, and the solution after processing is returned again
It is back in water tank, and the solid impurity isolated is disposed in sludge tank；
S3, according to ballast water capacity in ballast tank, take appropriate oxidizer containing chlorine, add it in ballast tank, profit
Kill bacterium, algae and the other microorganisms in ballast water with the strong oxidizing property of oxidizer containing chlorine, finally by selfdecomposition or
Follow-up simple process eliminates oxidizer containing chlorine excessive in ballast water.
The oxidizer containing chlorine refers to include in sodium hypochlorite, sodium chlorite, sodium chlorate, sodium perchlorate, chlorine dioxide
The aqueous solution of one or several kinds of chlorine-containing compounds；
During handling marine exhaust, because the water in the water tank can be because of evaporation, except miscellaneous operation etc.
Loss, it is necessary to persistently supplement the aqueous solution in use, and the liquid level of cleaning solution is in normal level in the holding water tank.
The step S2 is carried out to the particulate matter in marine exhaust simultaneously during wet scrubbing is carried out to marine exhaust
Removing.
Embodiment 3
A kind of marine exhaust pollutant and ballast water integrated conduct method, when ship is in non-NOxWhen emission control area is navigated by water,
Desulfurization process is carried out to marine exhaust using independent desulfurization mode of operation, independent desulphation mode is divided into enclosed and open type two again
Kind of mode of washing, open type mode of washing is comprised the following steps that：
S1, appropriate alkali lye, the aqueous solution is delivered in water tank by water pump respectively, cleaning solution is obtained after mixing；
The alkali lye refers to include one kind or number in sodium hydroxide, sodium carbonate, sodium acid carbonate, magnesium hydroxide, magnesium carbonate
Plant the aqueous solution of alkali compounds；
The aqueous solution refers to fresh water or seawater.
S2, the cleaning solution enter to scrubbing tower by water pump from scrubbing tower top inlet, then pass through the washing
Showering washing device inside tower carries out atomizing spray from top to down, and marine exhaust to be clean is from scrubbing tower sidewall bottom air inlet
Mouth enters scrubbing tower, is reacted with atomizing spray cleaning solution by inversely contacting, so that the processing to flue gas is realized, through washing
Washing the waste gas after tower purification can be directly discharged in air through simple process；The cleaning solution after waste gas is purified in scrubbing tower to pass through
Directly discharge into sea is simply aerated, removed slag, diluting etc. after processing；
S3, according to ballast water capacity in ballast tank, take appropriate oxidizer containing chlorine, add it in ballast tank, profit
Kill bacterium, algae and the other microorganisms in ballast water with the strong oxidizing property of oxidizer containing chlorine, finally by selfdecomposition or
Follow-up simple process eliminates oxidizer containing chlorine excessive in ballast water；
The oxidizer containing chlorine refers to include in sodium hypochlorite, sodium chlorite, sodium chlorate, sodium perchlorate, chlorine dioxide
The aqueous solution of one or several kinds of chlorine-containing compounds.
During handling marine exhaust, because the water in the water tank can be because of evaporation, except miscellaneous operation etc.
Loss, it is necessary to persistently supplement the aqueous solution in use, and the liquid level of cleaning solution is in normal level in the holding water tank.
The step S2 is carried out to the particulate matter in marine exhaust simultaneously during wet scrubbing is carried out to marine exhaust
Removing.
Embodiment 4
As shown in figure 1, a kind of marine exhaust pollutant and ballast water Integrated Processing Unit, including water pump I 1, containing oxychloride
Agent cabinet 2, alkali lye cabinet 3, fresh water tank 4, water pump VI 5, seawater pipe 6, hydrocyclone 7, sludge tank 8, water pump V 9, main washing lotion tube
10, water pump II 11, water tank 12, waste liquid storage cabinet 13, ballast tank 14, water pump III 15, main jet shower pipe 16, water pump IV 17, stirring
Device 18, scrubbing tower 19, cooler 20 and waste liquid discharge pipe 21, stop valve I 22, stop valve II 23, stop valve III 24, triple valve 25
With stop valve IV 26；
The oxidizer containing chlorine cabinet 2 is connected by the water pump I 1 with the ballast tank 14；
The oxidizer containing chlorine cabinet 2 is connected by the stop valve I 22 with the main washing lotion tube 10；
The alkali lye cabinet 3 is connected by the stop valve II 23 with the main washing lotion tube 10；
The fresh water tank 4 is connected by the stop valve III 24 with the main washing lotion tube 10；
The main washing lotion tube 10 is connected by the water pump II 11 and the water tank cleaning solution import I at the top of water tank 12
It is logical；
The water tank cleaning solution outlet I at the top of water tank 12 is connected by the water pump III 15 with the main jet shower pipe 16；
The inside cavity of scrubbing tower 19 is provided with Multi-layer sprinkling device, and the inlet of the spray equipment drenches with the main jet
The branch pipeline connection of pipe 16；
The sidewall bottom of scrubbing tower 19 is provided with exhaust gas inlet to be clean, and top is provided with waste gas outlet after purification, and bottom is set
There is cleaning solution after purification waste gas to export；
The cooler cleaning solution that cleaning solution outlet passes through the triple valve 25 and the cooler 20 after the purification waste gas
Inlet communication；
Cleaning solution outlet is connected by the triple valve 25 with the waste liquid discharge pipe 21 after the purification waste gas；
The cooler 20 is provided with refrigerant flow conduit, and the cooler cleaning solution outlet of the cooler 20 passes through the water pump
IV 17 connect with the water tank cleaning solution import II on the top of water tank 12；
The inner bottom of water tank 12, which is provided with, makes the mixed uniformly agitator 18 of cleaning solution in the water tank 12；
The water tank cleaning solution outlet II of the side wall bottom of water tank 12 passes through the water pump V 9 and the hydrocyclone 7
Side wall connection；
The water tank cleaning solution of the outlet of hydrocyclone cleaning solution and the top of water tank 12 on the top of hydrocyclone 7
Import III is connected；
The solid impurity outlet of the bottom of hydrocyclone 7 is connected with the sludge tank 8；
The water tank cleaning solution outlet III of the bottom of water tank 12 passes through the stop valve IV 26 and the waste liquid storage cabinet 13
Connection；
The seawater pipe 6 is connected by the water pump VI 5 with the water tank cleaning solution import IV on the top of water tank 12.
When the stop valve I 22, stop valve II 23 get to connected state, the stop valve III 24 and the water pump VI 5 its
One of be in connected state, oxidizer containing chlorine, alkali lye and the aqueous solution respectively from the oxidizer containing chlorine cabinet 2, alkali lye cabinet 3 with it is light
Water tank 4 (seawater pipe 6) is delivered in the water tank 12 by water pump, after being well mixed by the stirring action of agitator 18
To cleaning solution, it is transported to by water pump III 15, the main jet shower pipe 16 in the scrubbing tower 19, while marine exhaust to be clean
Exhaust gas inlet to be clean through the sidewall bottom of scrubbing tower 19 enters the scrubbing tower 19, inversely contacts and occurs with cleaning solution
Reaction, realizes simultaneous SO_2 and NO removal, and waste gas goes out after the purification at the top of scrubbing tower 19 after the waste gas simple process after purification
Mouth is directly discharged in air, and the cleaning solution after waste gas is purified in the scrubbing tower 19 and is cooled into the cooler 20
Processing, the cleaning solution after processing is returned in the water tank 12 through the water pump IV 17.In addition, appropriate oxidizer containing chlorine leads to
Cross the water pump I 1 to be filled into the ballast tank 14, killed using the strong oxidizing property of oxidizer containing chlorine thin in ballast water
Bacterium, algae and other microorganisms.Now, a kind of marine exhaust pollutant and ballast water Integrated Processing Unit are in simultaneously
Desulphurization denitration mode of operation, can be to the NO in marine exhaustx、SOx, the multiple pollutant such as particulate matter and ballast water carry out General Office
Reason；
When the stop valve I 22 gets to closed mode, stop valve II 23 gets to connected state, the stop valve III 24 and institute
Stating water pump VI 5, one of them is in connected state, and alkali lye is with the aqueous solution respectively from the alkali lye cabinet 3 and fresh water tank 4 (seawater pipe 6)
It is transported to by water pump in the water tank 12, obtains cleaning solution after being well mixed by the stirring action of agitator 18, pass through
The water pump III 15, the main jet shower pipe 16 are transported in the scrubbing tower 19, while boat diesel engine waste gas warp to be clean
The exhaust gas inlet to be clean of the sidewall bottom of scrubbing tower 19 enters the scrubbing tower 19, inversely contacts and occurs anti-with cleaning solution
Answer, progress desulfurization process, waste gas outlet is direct after the purification at the top of scrubbing tower 19 after the waste gas simple process after purification
It is discharged into air, and the cleaning solution after waste gas is purified in the scrubbing tower 19 and enters the cooler 20 progress cooling processing,
Cleaning solution after processing is returned in the water tank 12 through the water pump IV 17.In addition, appropriate oxidizer containing chlorine passes through institute
State water pump I 1 to be filled into the ballast tank 14, bacterium, the algae in ballast water are killed using the strong oxidizing property of oxidizer containing chlorine
Class and other microorganisms.Now, a kind of marine exhaust pollutant and ballast water Integrated Processing Unit are independent in enclosed
Desulfurization mode of operation, can be simultaneously to the SO in marine exhaustx, the multiple pollutant such as particulate matter and ballast water carry out integrated treatment；
When the stop valve I 22 gets to closed mode, stop valve II 23 gets to connected state, the stop valve III 24 and institute
Stating water pump VI 5, one of them is in connected state, and alkali lye is with the aqueous solution respectively from the alkali lye cabinet 3 and fresh water tank 4 (seawater pipe 6)
It is transported to by water pump in the water tank 12, obtains cleaning solution after being well mixed by the stirring action of agitator 18, pass through
Water pump III 15, the main jet shower pipe 16 are transported in the scrubbing tower 19, while boat diesel engine waste gas to be clean is through described
The exhaust gas inlet to be clean of the sidewall bottom of scrubbing tower 19 enters the scrubbing tower 19, inversely contacts and reacts with cleaning solution,
Waste gas outlet is directly discharged after the purification at the top of scrubbing tower 19 after progress desulfurization process, the waste gas simple process after purification
Into air, and the cleaning solution after waste gas is purified in the scrubbing tower 19 by being simply aerated, removing slag with after dilution processing, leading to
Cross the triple valve 25 and the waste liquid discharge pipe 21 be directly discharged to it is big marine.In addition, appropriate oxidizer containing chlorine leads to
Cross the water pump I 1 to be filled into the ballast tank 14, killed using the strong oxidizing property of oxidizer containing chlorine thin in ballast water
Bacterium, algae and other microorganisms.Now, a kind of marine exhaust pollutant and ballast water Integrated Processing Unit are in open type
Independent desulfurization mode of operation, can be simultaneously to the SO in marine exhaustx, the multiple pollutant such as particulate matter and ballast water carry out General Office
Reason.
Finally it should be noted that：Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations；To the greatest extent
The present invention is described in detail with reference to foregoing embodiments for pipe, it will be understood by those within the art that：Its according to
The technical scheme described in foregoing embodiments can so be modified, or which part or all technical characteristic are entered
Row equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the present invention technology
The scope of scheme.
Claims (5)
1. a kind of marine exhaust pollutant and ballast water integrated conduct method, it is characterised in that with following steps：
S1, appropriate alkali lye, oxidizer containing chlorine, the aqueous solution is delivered in water tank by water pump respectively, washed after mixing
Wash liquid；
When carrying out desulphurization denitration processing to marine exhaust simultaneously, the ratio that the oxidizer containing chlorine accounts for the cleaning solution is more than 0；
When only carrying out desulfurization process to marine exhaust, the ratio that the oxidizer containing chlorine accounts for the cleaning solution is 0；
S2, the cleaning solution enter to scrubbing tower by water pump from scrubbing tower top inlet, then by the scrubbing tower
The showering washing device in portion carries out atomizing spray from top to down, and marine exhaust to be clean enters from scrubbing tower sidewall bottom air inlet
Enter scrubbing tower, reacted with atomizing spray cleaning solution by inversely contacting, so that the processing to flue gas is realized, scrubbed tower
Waste gas after purification can be directly discharged in air through simple process；
Only marine exhaust is taken off when carrying out desulphurization denitration processing to marine exhaust simultaneously or when using enclosed mode of washing
Purify after the cleaning solution after waste gas is handled through cooler cooling and returned in water tank during sulphuring treatment, in scrubbing tower, in the water tank
Cleaning solution removes solid impurity therein through hydrocyclone, and the solution after processing is returned into water tank, and is isolated
Solid impurity be disposed in sludge tank；
When only carrying out desulfurization process to marine exhaust using open type mode of washing, the cleaning solution warp in scrubbing tower after purification waste gas
Cross and be simply aerated, remove slag, diluting etc. after processing directly discharge into sea；
S3, according to ballast water capacity in ballast tank, take appropriate oxidizer containing chlorine, add it in ballast tank, using containing
The strong oxidizing property of oxychloride agent kills bacterium, algae and the other microorganisms in ballast water, finally by selfdecomposition or follow-up
Simple process eliminates oxidizer containing chlorine excessive in ballast water.
2. processing method according to claim 1, it is characterised in that：During handling marine exhaust, by
Water in the water tank can lose because of evaporation, except miscellaneous operation etc., it is necessary to persistently supplement the aqueous solution in use, holding
The liquid level of cleaning solution is in normal level in the water tank.
3. processing method according to claim 1, it is characterised in that：The step S2 is washed to marine exhaust progress wet method
The particulate matter in marine exhaust is removed simultaneously during washing.
4. processing method according to claim 1, it is characterised in that：
The alkali lye refers to include one or several kinds of alkali in sodium hydroxide, sodium carbonate, sodium acid carbonate, magnesium hydroxide, magnesium carbonate
The aqueous solution of property compound；
The oxidizer containing chlorine refers to include one kind in sodium hypochlorite, sodium chlorite, sodium chlorate, sodium perchlorate, chlorine dioxide
Or the aqueous solution of several chlorine-containing compounds；
The aqueous solution refers to fresh water or seawater.
5. a kind of marine exhaust pollutant and ballast water Integrated Processing Unit, it is characterised in that：Including water pump I, oxidizer containing chlorine
Cabinet, alkali lye cabinet, fresh water tank, water pump VI, seawater pipe, hydrocyclone, sludge tank, water pump V, main washing lotion tube, water pump II, water
Cabinet, waste liquid storage cabinet, ballast tank, water pump III, main jet shower pipe, water pump IV, agitator, scrubbing tower, cooler, waste liquid discharge
Pipe, stop valve I, stop valve II, stop valve III, triple valve and stop valve IV；
The oxidizer containing chlorine cabinet is connected by the water pump I with the ballast tank；
The oxidizer containing chlorine cabinet is connected by the stop valve I with the main washing lotion tube；
The alkali lye cabinet is connected by the stop valve II with the main washing lotion tube；
The fresh water tank is connected by the stop valve III with the main washing lotion tube；
The main washing lotion tube is connected by the water pump II with the water tank cleaning solution import I at the top of the water tank；
Water tank cleaning solution outlet I at the top of the water tank is connected by the water pump III with the main jet shower pipe；
The scrubbing tower inside cavity is provided with Multi-layer sprinkling device, the inlet of the spray equipment and point of the main jet shower pipe
Pipeline connection；
The scrubbing tower sidewall bottom is provided with exhaust gas inlet to be clean, and top is provided with waste gas outlet after purification, and bottom is provided with purification
Cleaning solution is exported after waste gas；
The cooler cleaning solution inlet communication that cleaning solution outlet passes through the triple valve and the cooler after the purification waste gas；
Cleaning solution outlet is connected by the triple valve with the waste liquid discharge pipe after the purification waste gas；
The cooler be provided with refrigerant flow conduit, the cooler cooler cleaning solution outlet by the water pump IV with it is described
The water tank cleaning solution import II on water tank top is connected；
The water tank inner bottom, which is provided with, makes the mixed uniformly agitator of cleaning solution in the water tank；
The water tank cleaning solution outlet II of the water tank side wall bottom is connected by the water pump V with hydrocyclone side wall；
The water tank cleaning solution import III of the outlet of hydrocyclone cleaning solution and the water tank top on the hydrocyclone top
Connection；
The solid impurity outlet of the hydrocyclone bottom is connected with the sludge tank；
The water tank cleaning solution outlet III of the water tank bottom is connected by the stop valve IV with the waste liquid storage cabinet；
The seawater pipe is connected by the water pump VI with the water tank cleaning solution import IV on the water tank top.
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| CN107875855A (en) * | 2017-11-14 | 2018-04-06 | 大连海事大学 | A kind of boat diesel engine exhaust emission integrated conduct method and device |
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| CN110975611A (en) * | 2019-10-18 | 2020-04-10 | 广州文冲船舶修造有限公司 | Ship desulfurization system |
| WO2020143578A1 (en) * | 2019-01-10 | 2020-07-16 | 彭斯干 | Seagoing vessel clean sailing method and vessel |
| CN107754607B (en) * | 2017-11-14 | 2021-05-14 | 大连海事大学 | Comprehensive treatment method and device for exhaust gas of marine diesel engine |
| WO2021134925A1 (en) * | 2019-12-30 | 2021-07-08 | 童裳慧 | Semi-dry flue gas desulfurization and denitrification method |
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