CN109331657A - A kind of Deuslfurizing system for sea water and method for marine main engine tail gas - Google Patents
A kind of Deuslfurizing system for sea water and method for marine main engine tail gas Download PDFInfo
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- CN109331657A CN109331657A CN201811470407.5A CN201811470407A CN109331657A CN 109331657 A CN109331657 A CN 109331657A CN 201811470407 A CN201811470407 A CN 201811470407A CN 109331657 A CN109331657 A CN 109331657A
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- seawater
- flue gas
- desulfurizer
- hypergravity
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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
- B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
-
- 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
-
- 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
- B01D53/504—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 device
-
- 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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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Environmental & Geological Engineering (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses a kind of Deuslfurizing system for sea water and method for marine main engine tail gas, the system is made of the part such as flue gas discharger, supply and discharge seawater device and desulfurizer, first heat exchanger is equipped between the supply and discharge seawater device and flue gas discharger, it is communicated at the top of the water outlet of supply and discharge seawater device and desulfurizer, second heat exchanger is equipped between desulfurizer and domestic water case.The present invention rotates desulfurizer using seawater hypergravity to absorb the sulfur dioxide (SO in flue gas2) gas, desulfuration efficiency is effectively increased, the usage amount of seawater is also consequently reduced；After flue gas desulfurization, remaining most of heat transfer is given to domestic water case by second heat exchanger, resource on ship is effectively saved, realizes the secondary use of heat, also avoid harm of the discharge containing higher heat flue gas to atmosphere.
Description
Technical field
The present invention relates to field of ship equipment, more particularly to a kind of Deuslfurizing system for sea water for marine main engine tail gas and
Method.
Background technique
The tail gas of marine diesel discharge contains a large amount of sulfide, predominantly SO2, the SO that is discharged in air2The way of sedimentation
There are two types of diameters: one is being returned directly to ground by gravity, this health to the mankind, and animal and plant growth and industrial and agricultural production
Cause very big harm.Another kind is exactly to form acid rain, and for acid rain to the ecosystem, the health hazard of building and the mankind are all special
Greatly.With the rise of shipping industry, SO2The discharge amount of gas even more increasingly increases, and MAPROL73/78 pollution convention is to ship
Sulphur emissions propose mandatory requirement, and property tissue in each department is made laws one after another limits the discharge of ship oxysulfide, how to be effectively treated
SO2Exhaust gas is to need the problem of capturing at present to reach emission request.
Currently, mainly there is the restriction of reply sulphur emissions inside global shipping business: natural using liquefaction using low-sulfur oil
Gas (LNG) replacement of fuel fuel oil and installation tail gas desulfurization device, will bring higher fuel cost using low-sulfur oil, meanwhile, it is low
The sulfur content of sulphur oil fuel lacks international standard, so that there is uncertainty in the availability and specification of low-sulfur oil fuel, and makes
It will increase dramatically with LNG fuel shipbuilding cost, overall merit, meet requirements of convention using efficient ship tail gas desulfurizer
It is more practical.
Technical research about flue gas desulfurization (FGD) is originating from early in the twentieth century, and according to incompletely statistics, countries in the world are ground
Up to more than 200 kinds of the flue gas desulfurization technique send out, used, the dry and wet form of water and desulfurization product whether is added to be divided into three by sulfur removal technology
Kind: dry method, semidry method and wet process are divided into gypsum flue gas desulfurization method, rotary spraying and drying according to the main technique of desulfurization technology again
Doctor treatment and Sea water respiratory distress syndrome etc..
Although wet desulphurization is current mainstream desulfurization technology, but its reaction product easily forms sludge or gypsum product, after
Continuous processing is cumbersome, there are problems that equipment corrosion and fouling blockage in operation, and exhaust temperature is low, is unfavorable for discharge diffusion, needs
It is reheated, energy consumption is high, takes up a large area, and investment and operating cost are high, although dry desulfurization is without disadvantages mentioned above, solid
Desulfurizing agent and gaseous state SO2That directly reacts is ineffective, and reactivity is low, and sorbent utilization is low, and desulfurization effect is poor.
Technical principle using natural sea-water desulfurization is to be taught by California, USA Berkeley university L.A.Bromley in upper
What the 60's of century proposed, the U.S. in 1970 is in the pilot scale of Guam power plant, and Britain is also in the 80's are near Edinburg
Examination.But the considerations of the problems such as to desulfurization effect and seawater pollution；The states such as American and Britain do not push away generally in coal-fired power plant
Wide application, development is slower, and engineer application is later than wet type lime-gypsum.Before 1988, sea water desulfuration technology is multi-purpose
In the aluminium metallurgy factory of metallurgy industry and oil plant；Such as Southern Norway aluminium manufacturer, Norway's Statoil Mongstad oil plant take off
Sulphur system is all made of this device.Sea water desulfuration technology is tested in the application of thermal power plant derived from U.S. Guam in 1981, is then existed
Type approval test has been carried out on TATA Utilities Electric Co. of India 500MW coal unit and has been put into commercial operation in 1988,
Nineteen ninety-five, India TATA Utilities Electric Co. was mounted with second seawater desulfurization device on same unit, enable its fume treatment
Power reaches 44.5 × 104 Standard m3 /L；Hereafter, seawater desulfurizing process achieves faster development in the application of power plant.
Flue gas desulfurization with seawater is to absorb SO in flue gas using the natural alkalinity of seawater2A kind of sulfur removal technology.Due to rainwater
The alkaline matter (carbonate) contained in the mantlerock of land is taken to marine, natural sea-water is usually in alkalinity, and pH value is generally higher than
7, main component is chloride, carbonate and a part of soluble carbonate salt, with heavy carbonate (HCO3 -) meter, natural alkalinity is about
For 1.2-2.5mmol/L, this makes seawater have natural buffer capacity to acid and alkali and absorb SO2Ability.The one of sea water desulfuration
A main theoretical basis of the reform of Chinese economic structure is exactly that the sulphur of nature is mostly present in ocean, and sulfate is one of main component of seawater, ring
SO in border2The overwhelming majority is finally discharged into sea in the form of sulfate.But existing sea water desulfuration technology still remain with
Lower disadvantage:
1,300 DEG C of flue gas, which by flue transfers heat to seawater it is made to be warming up to 60 DEG C, to be then discharged out, causes big
The loss of calorimetric amount does not reach the utilization of bigizationner to the heat in flue gas.
2, the selection of the spraying device injection diameter size in desulfurizer is difficult accurate control, if what is gushed out is spraying straight
Diameter is excessive, can reduce with the surface area of smoke contacts, is unfavorable for the two haptoreaction；If the spray diameter to gush out is too small, spray
The flue gas if close of a large amount of spraying granules out does not have enough spaces to be reacted with spraying granule, and due to away from
Close from relatively, adjacent particle can contact to form bulky grain, and bulky grain also has inhibition to the two reaction.Therefore no matter diameter
It is too large or too small all effectively to increase the contact area of seawater droplets particles and flue gas, to cause the efficiency of desulfurization not
It is high.
Summary of the invention
It is an object of the invention to solve some shortcomings existing in the prior art, provide a kind of for marine main engine tail gas
Deuslfurizing system for sea water and method, can effectively solve the waste of flue gas heat, desulfuration efficiency is lower and seawater dosage is biggish
Problem.
To achieve the goals above, the technical solution adopted in the present invention is as follows: a kind of sea for marine main engine tail gas
Water desulphurization system, by flue gas discharger, supply and discharge seawater device and desulfurizer etc. part form, the supply and discharge seawater device with
It is equipped with first heat exchanger between flue gas discharger, is communicated at the top of the water outlet of supply and discharge seawater device and desulfurizer, desulfurization
Second heat exchanger is equipped between device and domestic water case.
Further, the main body of the desulfurizer is that seawater hypergravity rotates desulfurizer.
Further, one end of the flue gas discharger is directly connected to boat diesel engine, and the other end passes through the first heat
It is connected after the hot side of exchanger with the lower section gas inlet of seawater hypergravity rotation desulfurizer.
Further, the supply and discharge seawater device includes the seawater heating pond connecting with the cold side of first heat exchanger, sea
Water heats up pond equipped with sea intake, is successively arranged seawater between seawater heats up at the top of pond and seawater hypergravity rotation desulfurizer
Coarse filter, seawater spraying pump and backwash fine filter.
Further, the exhanst gas outlet of the seawater hypergravity rotation desulfurizer passes through flue and the second heat exchange
The hot side of device is connected, and domestic water case is connected with the cold side of second heat exchanger, in the seawater hypergravity rotation desulfurizer
Equipped with the Venturi scrubber and supergravity reactor being connected, the Venturi scrubber is revolved by blower and seawater hypergravity
Turn the gas inlet below desulfurizer to be connected, after supergravity reactor passes sequentially through demister, flue gas inspection device and blower
It is communicated with exhanst gas outlet.
A kind of sea water desulfuration method for marine main engine tail gas, detailed process are as follows:
The flue gas of diesel engine discharge is first fed to the hot side cooling of first heat exchanger to improve seawater in seawater heating pond
Temperature, is allowed to warm to 60 DEG C of best desulfurization temperature, and flue gas is passed through the rotation desulfurization of seawater hypergravity after first heat exchanger
The lower section gas inlet of device；
Seawater after heating is successively sent in a manner of spray after seawater coarse filter, seawater spraying pump and backwash fine filter
Enter the cavity of supergravity reactor；
Seawater after heating in seawater hypergravity rotation desulfurizer from top to bottom spray with from the bottom of device enter and on
What is risen reversely contacts through cooling flue gas, the steel wire high speed rotation in supergravity reactor, so that into the seawater in device
One layer of liquid film is formed under the action of the centrifugal, expands the contact area of flue gas and liquid film, and the sulfide in flue gas is sufficiently inhaled
It receives, is purified flue gas；
Purified flue gas is admitted to the hot side of second heat exchanger by flue, and flue gas is further cooled, heat quilt
The cold side for passing to second heat exchanger is used to heat the water in domestic water case, and further flue gas after cooling is directly arranged
Out；
Spraying the seawater to get off in seawater hypergravity rotation desulfurizer can be directly discharged into greatly by seawater discharge system
Sea, seawater contain a large amount of SO4 2-With sulfuric acid object etc. can oneself regulation dilution, sea will not be impacted.
The beneficial effects of the present invention are:
A kind of Deuslfurizing system for sea water for marine main engine tail gas disclosed by the invention absorbs cigarette using seawater super-gravity device
SO in gas2Gas, can replace traditional desulphurization system, and the grid hypergravity liquid film that high speed rotation is formed makes flue gas and liquid
Moment reaction, effectively increases desulfuration efficiency, also consequently reduces the usage amount of seawater.Moreover, the rotation of seawater hypergravity is de-
Sulphur device also has small in size, light weight, and smooth running, mass transfer intensity is high, and low energy consumption, and occupied area is small and saves capital expenditure
The advantages of.On the other hand, after flue gas desulfurization, flue gas is not rejected to atmosphere directly, but passing through second heat exchanger will
Remaining and most of heat transfer gives domestic water case, effectively saves resource on ship, realizes the secondary use of heat,
Also avoid harm of the discharge containing higher heat flue gas to atmosphere.
Detailed description of the invention
Fig. 1 is a kind of process flow chart of the Deuslfurizing system for sea water for marine main engine tail gas of the present invention；
Fig. 2 is the flow chart of seawater high gravity desulfurization device in the present invention；
Fig. 3 is the internal structure chart of the core supergravity reactor of seawater high gravity desulfurization device.
Specific embodiment
In order to make those skilled in the art be better understood on technical solution of the present invention, 1- with reference to the accompanying drawing
3 and embodiment technical solution of the present invention is further described.
It should be noted that embodiment provided by the present invention is merely to this carries out effectively the technical characteristic of invention
Illustrate, the left side, right side, upper end, lower end etc. position word merely to preferably being described to the embodiment of the present invention, no
It can regard the limitation to technical solution of the present invention as.
Embodiment: the present invention provides one to solve the problems, such as that conventional desulfurization units heat loss is serious and desulfuration efficiency is low
Kind is exclusively used in the Deuslfurizing system for sea water of marine main engine tail gas, by parts such as flue gas discharger, supply and discharge seawater device, desulfurizers
Composition, the flue gas of diesel engine discharge are first fed to the hot side cooling of first heat exchanger to improve seawater in seawater heating pond
Temperature is allowed to warm to 60 DEG C of best desulfurization temperature, (seawater and SO2Optimal reaction temperature is 60 DEG C), flue gas is by the first warm
The lower section gas inlet of seawater hypergravity rotation desulfurizer is passed through after exchanger；
Seawater after heating is successively sent in a manner of spray after seawater coarse filter, seawater spraying pump and backwash fine filter
Enter the cavity of supergravity reactor；
Seawater after heating sprayed from top to bottom in seawater hypergravity rotation desulfurizer with the stomata from the bottom of device into
Enter and what is risen reversely contacts through cooling flue gas, the steel wire high speed rotation in supergravity reactor, so that into device
Seawater form one layer of liquid film under the action of the centrifugal, fully absorb sulfide；
Purified flue gas is admitted to the hot side of second heat exchanger by flue, and flue gas is further cooled, heat quilt
The cold side for passing to second heat exchanger is used to heat the water in domestic water case, greatly enhances the utilization rate of flue gas heat.
Further flue gas after cooling is expelled directly out；
Spraying the seawater to get off in seawater hypergravity rotation desulfurizer can be directly discharged into sea, because of this in the seawater of sea
Body contains a large amount of sulfate ion (SO4 2-) and sulfide, therefore it is discharged to big SO in the sea4 2-With sulfide for sea it is micro- not
Sufficient road, sea can be diluted by the regulation of itself, therefore will not be impacted to sea, can be with direct emission.
In terms of efficiency, the absorptivity of seawater hypergravity rotation desulfurizer adds the multiple shelves of multiple spray, processing much higher than foaming tower
SO in tail gas afterwards2200 mg/m can be reduced to3Hereinafter, the volume of hypergravity equipment and weight are then lower than tower equipment, Ke Yi great
The space requirement of amplitude reduction exhaust gas processing device.
Seawater hypergravity rotation desulfurizer core in the present invention is supergravity reactor, reaction process are as follows: flue gas
Lower section gas inlet by seawater hypergravity rotation desulfurizer enters system, and blower pressurizes to it, into venturi
Washer is cleaned, and subsequently into supergravity reactor, the flue gas after desulfurization enters demister, through flue gas inspection device
It is discharged after detection by blower.
The present invention can be by the oil in exhaust gas in view of reactor internal rotor filler (rotor is steel wire herein, fills seawater)
Venturi scrubber is arranged in desulfurizer so rotating in seawater hypergravity in dirty and solid particles obstruction.Flue gas enters text
Washer in mound, dusty gas in washer drop or liquid film contact, hit, separate grit from air-flow, inhale simultaneously
Receiving portions SO2.Subsequently into supergravity reactor.In the Venturi scrubber, flue gas is washed using fresh water, is washed
Waste liquid after washing is pumped to Venturi scrubber after hydrocyclone separates particle, and the particle in hydrocyclone is discharged into useless
Slag chute.
The supergravity reactor drives rotor by a motor, and the rotor loads and fix filler, drives filler
Rotation, the centrifugal acceleration generated by rotation is up to 20-500 times of acceleration of gravity, mass transfer under the action of this centrifugal force field
The 1-2 order of magnitude can be improved in rate.Higher rotation speed can generate biggish shearing force, to breaing up liquid for more refinement
Small drop, makes drop form liquid film on steel wire, sufficiently expands the effective contact area of gas-liquid.Simultaneously as flue gas and sea
Collision between water increases, and higher rotation speed also results in the quickening of liquid phase renewal speed, so that SO2With seawater
It reacts more abundant, which thereby enhances fume treatment efficiency.
Several through-holes 1 are arranged by fixing element fixed rotor for hollow shaft in the shaft with hollow shaft, hollow
Axis is made of two stainless-steel seamless pipes, welds together, and is connect with motor shaft using flange-face coupling, passes through in hollow shaft
Position be arranged cavity；
Flue gas enters reaction chamber by air inlet 2, the SO in exhaust gas2Exist from the bottom to top with the seawater liquid film formed on steel wire
Reaction in reaction chamber, the flue gas after desulfurization enters demister demisting through air passing hole 1, finally by blower discharge system.
Seawater is sent to cavity, and the through-hole 1 for being located at chamber portion enters hollow shaft, then by being located at rotor position in hollow shaft
1 jet flow of through-hole set and go out, into rotor filler.Drain after reaction by the through-hole 2 of lower section.
Basic principles and main features and advantage of the invention have been shown and described above.But the foregoing is merely this hairs
Bright specific embodiment, technical characteristic of the invention are not limited thereto, and any those skilled in the art is not departing from this hair
The other embodiments obtained under bright technical solution should all cover within the scope of the patent of the present invention.
Claims (5)
1. a kind of Deuslfurizing system for sea water for marine main engine tail gas, which is characterized in that the Deuslfurizing system for sea water is arranged by flue gas
Device, supply and discharge seawater device and desulfurizer composition out, are equipped with the first heat between the supply and discharge seawater device and flue gas discharger
Exchanger communicates at the top of the water outlet of supply and discharge seawater device and desulfurizer, and the is equipped between desulfurizer and domestic water case
Two heat exchangers, the main body of the desulfurizer are that seawater hypergravity rotates desulfurizer.
2. a kind of Deuslfurizing system for sea water for marine main engine tail gas as described in claim 1, the flue gas discharger
One end is directly connected to boat diesel engine, rotates desulfurization dress after the hot side that the other end passes through first heat exchanger with seawater hypergravity
The lower section gas inlet connection set.
3. a kind of Deuslfurizing system for sea water for marine main engine tail gas as claimed in claim 2, the supply and discharge seawater device packet
The seawater heating pond connecting with the cold side of first heat exchanger is included, seawater heats up pond equipped with sea intake, in seawater heating pond
Seawater coarse filter, seawater spraying pump and backwash fine filter are successively arranged between seawater hypergravity rotation desulfurizer top.
4. a kind of Deuslfurizing system for sea water for marine main engine tail gas as claimed in claim 3, the seawater hypergravity rotation
The exhanst gas outlet of desulfurizer is connected by flue with the hot side of second heat exchanger, domestic water case and the second heat exchange
The cold side of device is connected, and is equipped with the Venturi scrubber being connected and hypergravity reaction in the seawater hypergravity rotation desulfurizer
Device, the Venturi scrubber are connected by blower with the gas inlet that seawater hypergravity rotates below desulfurizer, hypergravity
Reactor communicates after passing sequentially through demister, flue gas inspection device and blower with exhanst gas outlet.
5. such as a kind of desulfurization side of the Deuslfurizing system for sea water for marine main engine tail gas of any of claims 1-4
Method, which is characterized in that specific embodiment are as follows:
The flue gas of diesel engine discharge is first fed to the hot side cooling of first heat exchanger to improve seawater in seawater heating pond
Temperature, is allowed to warm to 60 DEG C of best desulfurization temperature, and flue gas is passed through the rotation desulfurization of seawater hypergravity after first heat exchanger
The lower section gas inlet of device；
Seawater after heating is successively sent in a manner of spray after seawater coarse filter, seawater spraying pump and backwash fine filter
Enter the cavity of supergravity reactor；
Seawater after heating in seawater hypergravity rotation desulfurizer from top to bottom spray with from the bottom of device enter and on
What is risen reversely contacts through cooling flue gas, the steel wire high speed rotation in supergravity reactor, so that into the seawater in device
One layer of liquid film is formed under the action of the centrifugal, fully absorbs sulfide；
Purified flue gas is admitted to the hot side of second heat exchanger by flue, and flue gas is further cooled, heat quilt
The cold side for passing to second heat exchanger is used to heat the water in domestic water case, and further flue gas after cooling is directly arranged
Out；
Spraying the seawater to get off in seawater hypergravity rotation desulfurizer can be directly discharged into greatly by seawater discharge system
Sea.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811470407.5A CN109331657A (en) | 2018-12-04 | 2018-12-04 | A kind of Deuslfurizing system for sea water and method for marine main engine tail gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811470407.5A CN109331657A (en) | 2018-12-04 | 2018-12-04 | A kind of Deuslfurizing system for sea water and method for marine main engine tail gas |
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| CN109331657A true CN109331657A (en) | 2019-02-15 |
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ID=65319536
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|---|---|---|---|
| CN201811470407.5A Pending CN109331657A (en) | 2018-12-04 | 2018-12-04 | A kind of Deuslfurizing system for sea water and method for marine main engine tail gas |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110681242A (en) * | 2019-10-23 | 2020-01-14 | 中国船舶电站设备有限公司 | Ship seawater desulfurization system and method |
| CN110721586A (en) * | 2019-09-23 | 2020-01-24 | 上海蓝魂环保科技有限公司 | Ship seawater desulfurization equipment with energy recovery function |
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| CN206381812U (en) * | 2016-09-18 | 2017-08-08 | 中国神华能源股份有限公司 | A kind of smoke processing system and wet desulphurization unit |
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| CN102363092A (en) * | 2011-06-28 | 2012-02-29 | 顾忠华 | Pretreatment device of seawater desulphurization apparatus |
| CN102974181A (en) * | 2012-11-14 | 2013-03-20 | 江苏中显集团有限公司 | Flue gas dedusting and desulfurization and denitrification craft and special device thereof |
| CN103977692A (en) * | 2014-06-03 | 2014-08-13 | 应孟员 | Seawater desulfurization device applicable to ships |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110721586A (en) * | 2019-09-23 | 2020-01-24 | 上海蓝魂环保科技有限公司 | Ship seawater desulfurization equipment with energy recovery function |
| CN110681242A (en) * | 2019-10-23 | 2020-01-14 | 中国船舶电站设备有限公司 | Ship seawater desulfurization system and method |
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Application publication date: 20190215 |