CN104353357A - Integrated exhaust gas scrubbing desulfuration equipment for ship power device and control method - Google Patents
Integrated exhaust gas scrubbing desulfuration equipment for ship power device and control method Download PDFInfo
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- CN104353357A CN104353357A CN201410566676.7A CN201410566676A CN104353357A CN 104353357 A CN104353357 A CN 104353357A CN 201410566676 A CN201410566676 A CN 201410566676A CN 104353357 A CN104353357 A CN 104353357A
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Abstract
The invention provides integrated exhaust gas scrubbing desulfuration equipment for a ship power device and a control method. The equipment is used for treating exhaust gas produced by a power device burning low-quality high-sulfur heavy oil, and comprises an exhaust-gas scrubbing pipeline, a three-way valve, an exhaust gas pressure stabilizing box and an exhaust gas scrubbing tower. Exhaust gas of the ship power device is connected to the exhaust gas pressure stabilizing box through the three-way valve, and then enters the exhaust gas scrubbing tower after being subjected to pressure stabilizing, so as to be subjected to scrubbing desulfuration. The equipment can reduce mutual interference caused by exhaust fluctuation of the ship power device, reduces the load and energy consumption of a whole scrubbing system, and can also ensure that the exhaust gas of a ship meets standards of the sulphur content in fuel oil of relevant ships by IMO (international maritime organization).
Description
Technical field
What the present invention relates to is a kind of waste gas washing desulphurization equipment, specifically uses the waste gas washing desulphurization equipment of the boats and ships of low-quality high-sulfur heavy oil.The invention still further relates to a kind of control method of waste gas washing desulphurization equipment of boats and ships.
Background technology
Along with the development of International Shipping Industry and oversea shipping trade, the toxic emission that boats and ships produce oneself become the primary pollution source of coastal area especially harbour air.The fuel that Ship Power Equipment uses is high viscosity, the low reduced fuel oil of high sulfur content, high carbon residue, and in the gaseous emissions that its burning produces, SOx occupies very large proportion, is one of major gaseous component causing ocean and harbour atmosphere pollution.
In order to limit boats and ships exhaust pollution, within 2008, International Maritime Organization (IMO) the 58th Marine Environmental Protection Committee have approved MARPOL73/78 pact supplemental provisions VI amendment, regulation, after 1 day January in 2012, the foreign-going ship travelled in high sea, its sulphur content of fuel oil must lower than 3.5%, and after the year two thousand twenty January 1, Global Regional sulphur content of fuel oil is lower than 0.5%; But in emission control marine site, after 1 day July in 2010, sulphur content of fuel oil need lower than 1%, and after 1 day January in 2015, sulfur content need lower than 0.1%; IMO also specifies, except using Low Sulfur Fuel Oil, boats and ships also can adopt authorized exhaust gas cleaning system or other technology to reduce the SOx of Ship Power Equipment discharge, make it the discharge being equivalent to corresponding sulfur content fuel oil.
Low-sulphur fuel is selected to be the essential measure solving SOx content overproof in boats and ships exhaust from source, but because Low Sulfur Fuel Oil needs through extra sweetening process in refining process, price is far above conventional heavy oils, considerably increase shipping transport cost, and a large amount of CO can be produced in Low Sulfur Fuel Oil refining process
2.Use Low Sulfur Fuel Oil and high-sulfur fuel oil switched system, relate to marine main engine, marine auxiliary and oil burning boiler etc., the fuel oil conversion equipment of diesel engine, boiler need be increased, and oil supply system, burner, monitoring and display system etc. are transformed, and likely need add cooler on engine fuel oil system.In addition, the more accessory problems such as such as safety can be produced in high and low sulphur fuel oil handoff procedure.
In view of the increasingly stringent that IMO requires for sulphur content of fuel oil, the efficient desulphurization plant of development of new, washing facility that particularly can be supporting with spot ship power set, be solve current and following foreign-going ship to free in and out each marine site, the world, promote Chinese Enterprises and to go to the world indispensable important measures.
Summary of the invention
The object of the present invention is to provide one can reduce marine fuel oil expense and operation cost, and the Ship Power Equipment integrated form waste gas washing desulphurization equipment that pressure drop is lower.The present invention also aims to the control method that a kind of Ship Power Equipment integrated form waste gas washing desulphurization equipment is provided.
The object of the present invention is achieved like this:
Ship Power Equipment integrated form waste gas washing desulphurization equipment of the present invention is: each connecting tee valve on the blast pipe of ship's main diesel engine, boats and ships auxiliary diesel, marine oil boiler, the waste gas washing pipeline of leading up to of each triple valve is communicated to waste gas pressurizer tank, the exhaust gas bypass pipeline of separately leading up to of each triple valve is directly communicated to ambient air, and waste gas pressurizer tank connects exhaust gas scrubber.
Comprise pre-spraying layer, spraying layer and demister from top to bottom in described exhaust gas scrubber, air inlet is positioned at bottom, and gas outlet is positioned at top.
Described spraying layer is one or more levels spraying layer.
The control method of Ship Power Equipment integrated form waste gas washing desulphurization equipment of the present invention is:
When ship's navigation is in non-sulphur emissions control area and non-port area, each triple valve is directly communicated with blast pipe and exhaust gas bypass pipeline;
When ship's navigation is in sulphur emissions control area or port area, each triple valve is communicated with blast pipe and waste gas washing pipeline, and waste gas enters waste gas pressurizer tank, after voltage stabilizing, enters exhaust gas scrubber washing and removes SOx and particle, then after demist, enter ambient air;
When the sulphur content of fuel oil that boats and ships use is lower, according to sulphur content of fuel oil and the emission control requirement of ship's navigation marine site, control splitter section waste gas by each triple valve and wash, waste gas and all the other are without the waste gas dual disposal washed after process.
Described washing specifically comprises:
(1) pre-wash and cooling: pre-wash is carried out to the high-temp waste gas containing SOx and particle that ship's main diesel engine, boats and ships auxiliary diesel and marine oil boiler produce, reduces its temperature, part SOx and particle in scrubbing exhaust gas;
(2) wash: to the waste gas of lowering the temperature through pre-wash, adopt spray washing liquid to wash, remove SOx wherein and particle;
(3) demist: to through washing, removed the waste gas of SOx, through demister demist, reclaims wherein contained moisture.
Described spray washing liquid is alkaline substance solution or seawater, and described alkaline substance solution is sodium hydroxide solution, sodium carbonate liquor or sodium bicarbonate solution.
Ship Power Equipment efficient low-resistance integrated form waste gas washing desulphurization equipment provided by the invention, the waste gas of ship's main diesel engine, boats and ships auxiliary diesel, marine oil boiler flows to triple valve through blast pipe, and triple valve leads up to that waste gas washing pipeline is communicated to waste gas pressurizer tank, separately leading up to exhaust gas bypass pipeline is directly communicated to ambient air; The waste gas of each power set of boats and ships collects at waste gas pressurizer tank, then passes into exhaust gas scrubber.
Exhaust gas scrubber of the present invention adopts reverse-flow, and waste gas flows from bottom to top, and cleaning solution sprays from the top down, and whole wash mill comprises pre-spraying layer, spraying layer and demister from top to bottom.
According to operation area and course line, described Ship Power Equipment efficient low-resistance integrated form waste gas washing desulphurization equipment operating mode is divided into non-washing mode and washing mode.
When ship's navigation is in non-sulphur emissions control area and non-port area, waste gas washing desulphurization equipment operates in non-washing mode, and triple valve is directly communicated with blast pipe and exhaust gas bypass pipeline, and the waste gas that power plant combustion produces directly enters ambient air.
When ship's navigation is in sulphur emissions control area or port area, waste gas washing desulphurization equipment operates in washing mode, triple valve is communicated with blast pipe and waste gas washing pipeline, the waste gas that power plant combustion produces enters waste gas pressurizer tank, after voltage stabilizing, enter exhaust gas scrubber washing and remove SOx and particle, then after demist, enter ambient air.
When exhaust gas scrubber maintenance or when breaking down, by the triple valve path on motivation of adjustment device blast pipe, the waste gas that bypass power plant combustion produces, directly enters ambient air through exhaust gas bypass pipeline.
When the sulphur content of fuel oil that boats and ships use is lower, only need wash portion can reach IMO emission request, now waste gas shunting washing technology is adopted to boat diesel engine exhaust, namely according to sulphur content of fuel oil and the emission control requirement of ship's navigation marine site, control splitter section waste gas by triple valve, wash, after process, waste gas mixes without the waste gas washed with all the other, make gaseous mixture meet current flight marine site emission request, reduce whole washing system load and energy ezpenditure.
During power set working conditions change, exhausted air quantity and the EGT of discharge all change, and by adjustment pre-wash and wash spray amount, make scrubbing exhaust gas reach the washing requirement of regulation.
Above-mentioned Ship Power Equipment efficient low-resistance integrated form waste gas washing desulphurization equipment, waste gas voltage-stablizer is used for the pressure of balanced each engine, make exhaust gas scrubber inlet pressure even, avoid mutually disturbing due to power plant exhaust pressure oscillation causing exhaust gas scrubber back pressure excessively to increase.
Above-mentioned exhaust gas scrubber, the maximum determination design maximum exhaust-gas treatment amount of the exhausted air quantity summation of the power set simultaneously run according to boats and ships.
In the present invention, exhaust gas scrubber to the effect that engine carries out carrying out washing treatment is:
1. the high-temp waste gas containing SOx and particle that pair ship's main diesel engine, boats and ships auxiliary diesel and marine oil boiler produce carries out pre-wash, reduces its temperature, part SOx and particle in scrubbing exhaust gas.
2. pair waste gas of lowering the temperature through pre-wash, adopts spray washing liquid to wash, removes SOx wherein and particle.
3. pair process washing, has removed the waste gas of SOx, through demister demist, reclaims wherein contained moisture.
Advantage of the present invention is:
1. cover the equipment of all use low-quality high-sulfur heavy oil on boats and ships, the waste gas of all devices is concentrated in a device and process, reduce the volume and weight of washing desulphurization equipment, decrease investment and the operating cost of washing desulphurization device.
2. adopt waste gas voltage stabilizing technique, decrease because marine power plant exhaust fluctuates the mutual interference caused, decrease the pressure drop of washing desulphurization device and the impact on power set.
3. adopt exhaust gas bypass technology, ensure that the security of waste gas washing desulphurization plant running.
4. adopt waste gas shunting washing technology, make the discharging waste gas after process meet ship's navigation marine site emission request, decrease whole washing system load and energy ezpenditure.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in detail:
The waste gas of ship's main diesel engine 1, boats and ships auxiliary diesel 2, marine oil boiler 3 flows to triple valve 4 through respective blast pipe A, triple valve 4 is leaded up to waste gas washing pipeline B and is communicated with waste gas pressurizer tank 5, and exhaust gas bypass pipeline C of separately leading up to directly is communicated with ambient air; Waste gas boats and ships using high-sulfur heavy oil collects at waste gas pressurizer tank 5, then passes into exhaust gas scrubber 6.
Exhaust gas scrubber 6 adopts reverse-flow, and waste gas flows from bottom to top, and cleaning solution sprays from the top down, and whole wash mill comprises pre-spraying layer 7, spraying layer 8 and demister 9 from top to bottom.
Described Ship Power Equipment efficient low-resistance integrated form waste gas washing desulphurization equipment, its motor pattern is divided into non-washing mode and washing mode.
When ship's navigation is in non-sulphur emissions control area and non-port area, waste gas washing desulphurization equipment operates in non-washing mode, namely triple valve 4 is directly communicated with blast pipe A and exhaust gas bypass pipeline C, and the waste gas that power set (1,2,3) work produces directly enters ambient air.
When ship's navigation is in sulphur emissions control area or port area, waste gas washing desulphurization equipment operates in washing mode, namely triple valve 4 is communicated with blast pipe A and waste gas washing pipeline B, the waste gas that power set (1,2,3) work produces enters waste gas pressurizer tank 5, waste gas, after voltage stabilizing, enters exhaust gas scrubber 6, and washing removes SOx and particle, after demist, enter ambient air.
When exhaust gas scrubber 6 keeps in repair or breaks down, by the triple valve path 4 on motivation of adjustment device blast pipe A, the waste gas that power set work produces directly enters ambient air through exhaust gas bypass pipeline C.
When the sulphur content of fuel oil that boats and ships use is lower, only need wash portion can reach emission request, now waste gas shunting washing technology is adopted to boat diesel engine exhaust, according to sulphur content of fuel oil and navigation marine site emission control requirement, control splitter section waste gas by triple valve 4, wash, after process, waste gas mixes without the waste gas washed with all the other, make gaseous mixture meet current marine site emission request, reduce washing system load and energy ezpenditure.
The design capacity of described exhaust gas scrubber 6, the maximum of the exhausted air quantity summation of the power set simultaneously run according to boats and ships is determined.
Described exhaust gas scrubber 6, is handled as follows engine:
1. pre-wash and cooling: pre-wash is carried out to the high-temp waste gas containing SOx and particle that ship's main diesel engine 1, boats and ships auxiliary diesel 2 and marine oil boiler 3 produces, reduces its temperature, wash its part SOx and particle simultaneously.
2. wash: to the waste gas of lowering the temperature through pre-wash, adopt cleaning solution spray to wash, remove SOx wherein and particle.
3. demist: to through washing, removed the waste gas of SOx, through demister demist, reclaimed wherein contained humidity.
During power set working conditions change, by adjustment pre-wash and wash spray amount, make the requirement clean result of waste gas being reached to regulation.
In above-mentioned exhaust gas scrubber 6, spray thrower adopts one or more levels spraying layer.
Above-mentioned waste gas washing desulphurization device 6, adopt alkaline substance solution or seawer washing waste gas, described alkaline substance solution is the alkali lye such as sodium hydroxide solution, sodium carbonate liquor or sodium bicarbonate solution, and mode of washing is enclosed washing, mixing, washing or open type washing.
Claims (6)
1. a Ship Power Equipment integrated form waste gas washing desulphurization equipment, it is characterized in that: each connecting tee valve on the blast pipe of ship's main diesel engine, boats and ships auxiliary diesel, marine oil boiler, the waste gas washing pipeline of leading up to of each triple valve is communicated to waste gas pressurizer tank, the exhaust gas bypass pipeline of separately leading up to of each triple valve is directly communicated to ambient air, and waste gas pressurizer tank connects exhaust gas scrubber.
2. Ship Power Equipment integrated form waste gas washing desulphurization equipment according to claim 1, is characterized in that: comprise pre-spraying layer, spraying layer and demister from top to bottom in described exhaust gas scrubber, and air inlet is positioned at bottom, and gas outlet is positioned at top.
3. Ship Power Equipment integrated form waste gas washing desulphurization equipment according to claim 2, is characterized in that: described spraying layer is one or more levels spraying layer.
4. a control method for Ship Power Equipment integrated form waste gas washing desulphurization equipment according to claim 1, is characterized in that:
When ship's navigation is in non-sulphur emissions control area and non-port area, each triple valve is directly communicated with blast pipe and exhaust gas bypass pipeline;
When ship's navigation is in sulphur emissions control area or port area, each triple valve is communicated with blast pipe and waste gas washing pipeline, and waste gas enters waste gas pressurizer tank, after voltage stabilizing, enters exhaust gas scrubber washing and removes SOx and particle, then after demist, enter ambient air;
When the sulphur content of fuel oil that boats and ships use is lower, according to sulphur content of fuel oil and the emission control requirement of ship's navigation marine site, control splitter section waste gas by each triple valve and wash, waste gas and all the other are without the waste gas dual disposal washed after process.
5. the control method of Ship Power Equipment integrated form waste gas washing desulphurization equipment according to claim 4, is characterized in that described washing specifically comprises:
(1) pre-wash and cooling: pre-wash is carried out to the high-temp waste gas containing SOx and particle that ship's main diesel engine, boats and ships auxiliary diesel and marine oil boiler produce, reduces its temperature, part SOx and particle in scrubbing exhaust gas;
(2) wash: to the waste gas of lowering the temperature through pre-wash, adopt spray washing liquid to wash, remove SOx wherein and particle;
(3) demist: to through washing, removed the waste gas of SOx, through demister demist, reclaims wherein contained moisture.
6. the control method of Ship Power Equipment integrated form waste gas washing desulphurization equipment according to claim 5, it is characterized in that: described spray washing liquid is alkaline substance solution or seawater, described alkaline substance solution is sodium hydroxide solution, sodium carbonate liquor or sodium bicarbonate solution.
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| CN105797561A (en) * | 2016-04-22 | 2016-07-27 | 浙江宝峰热电有限公司 | Improved desulphurization device |
| CN108518266A (en) * | 2018-02-28 | 2018-09-11 | 哈尔滨工程大学 | A kind of engine of boat and ship tail gas with check valve and gas method and its device |
| CN108609150A (en) * | 2018-03-23 | 2018-10-02 | 哈尔滨工程大学 | A kind of ship tail gas processing system by-pass collar and processing method |
| CN109925847A (en) * | 2017-03-28 | 2019-06-25 | 三菱日立电力系统株式会社 | Ship desulfurizer and ship |
| US11124714B2 (en) | 2020-02-19 | 2021-09-21 | Marathon Petroleum Company Lp | Low sulfur fuel oil blends for stability enhancement and associated methods |
| US11802257B2 (en) | 2022-01-31 | 2023-10-31 | Marathon Petroleum Company Lp | Systems and methods for reducing rendered fats pour point |
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| US12000720B2 (en) | 2018-09-10 | 2024-06-04 | Marathon Petroleum Company Lp | Product inventory monitoring |
| US12031094B2 (en) | 2023-06-22 | 2024-07-09 | Marathon Petroleum Company Lp | Assemblies and methods for enhancing fluid catalytic cracking (FCC) processes during the FCC process using spectroscopic analyzers |
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| CN105797561A (en) * | 2016-04-22 | 2016-07-27 | 浙江宝峰热电有限公司 | Improved desulphurization device |
| CN109925846A (en) * | 2017-03-28 | 2019-06-25 | 三菱日立电力系统株式会社 | Ship desulfurizer and ship |
| CN112373667A (en) * | 2017-03-28 | 2021-02-19 | 三菱动力株式会社 | Desulfurization device for ship and ship |
| CN109925847A (en) * | 2017-03-28 | 2019-06-25 | 三菱日立电力系统株式会社 | Ship desulfurizer and ship |
| US11891581B2 (en) | 2017-09-29 | 2024-02-06 | Marathon Petroleum Company Lp | Tower bottoms coke catching device |
| CN108518266A (en) * | 2018-02-28 | 2018-09-11 | 哈尔滨工程大学 | A kind of engine of boat and ship tail gas with check valve and gas method and its device |
| CN108609150A (en) * | 2018-03-23 | 2018-10-02 | 哈尔滨工程大学 | A kind of ship tail gas processing system by-pass collar and processing method |
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| US11975316B2 (en) | 2019-05-09 | 2024-05-07 | Marathon Petroleum Company Lp | Methods and reforming systems for re-dispersing platinum on reforming catalyst |
| US11352578B2 (en) | 2020-02-19 | 2022-06-07 | Marathon Petroleum Company Lp | Low sulfur fuel oil blends for stabtility enhancement and associated methods |
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| US11124714B2 (en) | 2020-02-19 | 2021-09-21 | Marathon Petroleum Company Lp | Low sulfur fuel oil blends for stability enhancement and associated methods |
| US11384301B2 (en) | 2020-02-19 | 2022-07-12 | Marathon Petroleum Company Lp | Low sulfur fuel oil blends for stability enhancement and associated methods |
| US11905479B2 (en) | 2020-02-19 | 2024-02-20 | Marathon Petroleum Company Lp | Low sulfur fuel oil blends for stability enhancement and associated methods |
| US11920096B2 (en) | 2020-02-19 | 2024-03-05 | Marathon Petroleum Company Lp | Low sulfur fuel oil blends for paraffinic resid stability and associated methods |
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| US11906423B2 (en) | 2021-02-25 | 2024-02-20 | Marathon Petroleum Company Lp | Methods, assemblies, and controllers for determining and using standardized spectral responses for calibration of spectroscopic analyzers |
| US11898109B2 (en) | 2021-02-25 | 2024-02-13 | Marathon Petroleum Company Lp | Assemblies and methods for enhancing control of hydrotreating and fluid catalytic cracking (FCC) processes using spectroscopic analyzers |
| US11885739B2 (en) | 2021-02-25 | 2024-01-30 | Marathon Petroleum Company Lp | Methods and assemblies for determining and using standardized spectral responses for calibration of spectroscopic analyzers |
| US11970664B2 (en) | 2021-10-10 | 2024-04-30 | Marathon Petroleum Company Lp | Methods and systems for enhancing processing of hydrocarbons in a fluid catalytic cracking unit using a renewable additive |
| US11802257B2 (en) | 2022-01-31 | 2023-10-31 | Marathon Petroleum Company Lp | Systems and methods for reducing rendered fats pour point |
| US12031094B2 (en) | 2023-06-22 | 2024-07-09 | Marathon Petroleum Company Lp | Assemblies and methods for enhancing fluid catalytic cracking (FCC) processes during the FCC process using spectroscopic analyzers |
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Application publication date: 20150218 |