CN108071456A - A kind of efficient emission-reducing high pressure SCR system peculiar to vessel - Google Patents
A kind of efficient emission-reducing high pressure SCR system peculiar to vessel Download PDFInfo
- Publication number
- CN108071456A CN108071456A CN201711193878.1A CN201711193878A CN108071456A CN 108071456 A CN108071456 A CN 108071456A CN 201711193878 A CN201711193878 A CN 201711193878A CN 108071456 A CN108071456 A CN 108071456A
- Authority
- CN
- China
- Prior art keywords
- scr
- tanks
- high pressure
- urea
- parts
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
- F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
- F01N3/2066—Selective catalytic reduction [SCR]
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
- F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
- F01N3/2006—Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating
- F01N3/2013—Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating using electric or magnetic heating means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
- F01N3/28—Construction of catalytic reactors
- F01N3/2803—Construction of catalytic reactors characterised by structure, by material or by manufacturing of catalyst support
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2370/00—Selection of materials for exhaust purification
- F01N2370/02—Selection of materials for exhaust purification used in catalytic reactors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2370/00—Selection of materials for exhaust purification
- F01N2370/02—Selection of materials for exhaust purification used in catalytic reactors
- F01N2370/04—Zeolitic material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2610/00—Adding substances to exhaust gases
- F01N2610/02—Adding substances to exhaust gases the substance being ammonia or urea
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2610/00—Adding substances to exhaust gases
- F01N2610/14—Arrangements for the supply of substances, e.g. conduits
- F01N2610/1433—Pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2610/00—Adding substances to exhaust gases
- F01N2610/14—Arrangements for the supply of substances, e.g. conduits
- F01N2610/1453—Sprayers or atomisers; Arrangement thereof in the exhaust apparatus
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Gas After Treatment (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Catalysts (AREA)
Abstract
The invention discloses a kind of efficient emission-reducing high pressure SCR systems peculiar to vessel, include urea tank, urea pump, evaporator, high speed jet pump, distributor pipe group, SCR tanks, tail gas tank successively from front to back, the urea of liquefied is squeezed into evaporator by urea pump, the base of evaporator has heating unit, internal placement support plate, after the evaporator outlet end is by a strainer valve, connect high speed jet pump backward again, the high speed jet pump connects distributor pipe group backward；The distributor pipe group includes several groups of evenly distributed distribution single tubes, has solenoid valve and check valve successively on the every distribution single tube, the distributor pipe group leads to the arrival end of SCR tanks；The SCR tanks face arrival end is distributed filler net, and SCR catalyst is loaded in filler net.The device of the invention has carried out mass transfer enhancement to reacting fluid, and design is optimized to the catalyst of SCR reaction committed steps, makes that whole system is compact, efficient, strong operability.
Description
Technical field
The invention belongs to technical field of ship transportation more particularly to a kind of efficient emission-reducing high pressure SCR systems peculiar to vessel.
Background technology
Chemical tanker is transported as the energy, still in shipping world in occupation of one seat, how to reduce the NO of shipxAnd SOxRow
It puts, undoubtedly has strong influence to entire Shipping.Environmental requirement is higher and higher at present, and new boatbuilding in 2017 performs new
International Maritime Organization IMO3 is discharged and discharge III is accurate.Host and generator originally cannot meet new IMO3 discharges and row in itself
Put III alignment request.
Reach full by installing high pressure SCR (selective catalytic reduction) systems in host and generator diesel exhaust gas side
III requirement of sufficient IMO3 discharges and discharge.SCR system has high pressure and low pressure two types, and high pressure SCR system is mounted in diesel engine
Between booster, and low pressure SCR system is mounted in supercharger outlet, and the difference of the two essence is if to meet new
IMO3 discharges and discharge III quasi- high pressure SCR system can be up to 3.5% fuel oil with combustion of sulfur amount, and low pressure SCR system is then
Can only combustion of sulfur amount maximum 0.1% fuel oil.
How the NO of ship is reducedxAnd SOxDischarge has entire Shipping strong influence, therefore upgrades high pressure SCR
System has great importance to Shipping.
The content of the invention
Goal of the invention：The present invention proposes a kind of efficient emission-reducing high pressure SCR system peculiar to vessel, and it reinforces fluid transmission, materials
Exchange and energy exchange, have updated catalyst, efficiency are improved in the reaction of selective catalysis S, N, to overcome in the prior art
There are the problem of.
The content of the invention：A kind of efficient emission-reducing high pressure SCR system peculiar to vessel includes urea tank, urea pump, steaming successively from front to back
Device, high speed jet pump, distributor pipe group, SCR tanks, tail gas tank are sent out, stored urea in the urea tank, urea pump is by the urine of liquefied
Element squeezes into evaporator, and the base of evaporator has heating unit, internal placement support plate, zinc oxide, the steaming are loaded on support plate
After the device port of export is sent out by a strainer valve, then high speed jet pump is connected backward, the high speed jet pump connects distributor pipe backward
Group；
The distributor pipe group includes several groups of evenly distributed distribution single tubes, has electricity successively on the every distribution single tube
Magnetically condition valve and check valve, the solenoid valve interlocking of signals simultaneously connect actuator, actuator connection DCS system, described point
Stringing group leads to the arrival end of SCR tanks；
The SCR tanks face arrival end is distributed filler net, and SCR catalyst, several directions in SCR tanks side are loaded in filler net
Diesel Engine Exhaust Pipe is accessed, the Diesel Engine Exhaust Pipe connects steam branch pipe, and SCR tanks also install pressure indicator, diesel engine row
The exhaust regulating valve having on tracheae interlocks with pressure indicator and is connected DCS system, SCR tanks tail end connection tail gas tank, described
Operating pressure is not less than 2.4MPa in SCR tanks, and temperature is not less than 215 DEG C.
Preferably, the SCR tanks rear end sets booster, operating pressure is 2.6~4.8MPa in SCR tanks, and tail end is blown
Grey pressure is not less than 1.0MPa, and the steam branch pipe is passed through 225~250 DEG C of superheated steams.The operating condition of SCR tanks passes through repeatedly
Experiment draws possess stronger high-voltage stability and flowing Combination, catalyst is made efficiently to play, higher choosing is obtained by the reaction
Selecting property and conversion ratio.
Further, the SCR top tank structures set heater strip, the heater switch connection DCS system that heater strip has.Heater strip
The convenient temperature in SCR tanks carries out two degree of adjustment.
Preferably, the distributor pipe group includes 6~12 component cloth single tubes.The quantity of distribution single tube makes the fluid after pressurization
Enter SCR tanks with being evenly distributed, promote reaction contact and exchange rate, improve catalytic reaction conversion ratio.
Preferably, the SCR catalyst includes carrier and active catalytic object, the active catalytic object includes following weight
The component of part：
Further, the carrier is Detitanium-ore-type poriferous titanium dioxide, in CHA skeletons zeolite, silicoaluminophosphamolecular molecular sieve
One kind.More than carrier molecule construction is special, is remarkably improved the activity of active catalytic object.
Further, the transition metal for Fe, Co, Ni, Cu, Zn, Mo, Ce, Ru, Rh, Pd, Ag, In, Sn, Re, Ir, Au,
It is a kind of or a combination thereof in La, Ce, W, Bi, Pt, and the grain size scale of transition metal is less than 400nm.The gentle grain of more than metal
Degree catalytic activity is strong, and the not only component of the S containing catalysis but also the component of the N containing catalysis.
Compared to the prior art, the beneficial effects of the present invention are：The present invention is compact-sized, mass transfer enhancement, catalytic efficiency
It is high.It urea tank, urea pump and evaporator and places zinc oxide urea is enable to decompose at a lower temperature and steam, make its reservation
Stability and can extended residence time；High speed jet pump, distributor pipe group carry out high-velocity fluid biography to the ammonia that urea decomposes
It passs, and is controlled and be distributed with solenoid valve, adapt it to the atmosphere distribution situation in SCR tanks；Filler net, which adds, in SCR tanks connects
Contacting surface is accumulated, and carrier and active catalytic object are selectively oxidized S, N reduction, nitrogen mainly generated nitrogen, and S obtains abundant oxygen
Change.The device of the invention has carried out mass transfer enhancement to reacting fluid, and the catalyst of SCR reaction committed steps is optimized and is set
Meter is sufficiently disengaged from N catalysis and design is optimized for the oxidation of S, and rationally disposed robot control system(RCS), makes whole system
Compact, efficient, strong operability.
Description of the drawings
Fig. 1 is the process structure schematic diagram of the embodiment of the present invention.
In figure：1- urea tanks, 2- urea pumps, 3- evaporators, 31- heating units, 32- support plates, 33- strainer valves, 34- are manual
Regulating valve, 4- high speed jet pumps, 5- distributor pipe groups, 51- distribution single tubes, 52- solenoid valves, 53- check valves, 6-SCR tanks,
61- filler nets, 62- pressure indicators, 63- heater strips, 7- tail gas tanks, 8-DCS systems, 81- actuators, 9- diesel exhaust gases
Pipe, 91- steam branch pipes, 92- exhaust regulating valves.
Specific embodiment
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, letter will be made to embodiment below
Single introduction.
Such as Fig. 1, a kind of efficient emission-reducing high pressure SCR system peculiar to vessel includes urea tank 1, urea pump 2, steams successively from front to back
Device 3, high speed jet pump 4, distributor pipe group 5, SCR tanks 6, tail gas tank 7 are sent out, stored urea in the urea tank 1, urea pump 2 is by liquid
The urea of state squeezes into evaporator 3, and 3 bottom of evaporator has heating unit 31, internal placement support plate 32, born on support plate 32
Supported with zinc oxide after 3 port of export of evaporator is by a strainer valve 33, then connects high speed jet pump 4 backward, the high speed spray
It penetrates pump 4 and connects distributor pipe group 5 backward, between the evaporator 3 and jet pump 4, between jet pump 4 and distributor pipe group, also have
Manual modulation valve 34；
The distributor pipe group 5 include 6~12 groups of evenly distributed distribution single tubes 51, every it is described distribution single tube 51 on successively
With solenoid valve 52 and check valve 53,52 interlocking of signals of solenoid valve simultaneously connects actuator 81, actuator connection
DCS system 8, the distributor pipe group 5 lead to the arrival end of SCR tanks 6；
The 6 face arrival end of SCR tanks is distributed 3~6 row's filler nets 61, and SCR catalyst, SCR tanks 6 are loaded in filler net 61
Side is circumferential uniformly to access Diesel Engine Exhaust Pipe 9 from 2~4 directions, and the Diesel Engine Exhaust Pipe 9 connects steam branch pipe 91, SCR
Tank 6 also installs pressure indicator 62, and the exhaust regulating valve 92 having in Diesel Engine Exhaust Pipe 9 is interlocked and connected with pressure indicator 62
Connect DCS system, 6 tail end of SCR tanks connection tail gas tank 7；6 inner wall of SCR tanks sets heater strip 63, the heating that heater strip 63 has
Switch connection DCS system 8；
6 rear end of SCR tanks sets booster (not shown), and operating pressure is 2.6~4.8MPa in SCR tanks 6, tail
Blowing pressure is held not less than 1.0MPa, the steam branch pipe 91 is passed through 225~250 DEG C of superheated steam, and operation is warm in SCR tanks 6
Degree is at 215~245 DEG C.
Wherein, the SCR catalyst includes carrier and active catalytic object, and the active catalytic object includes real as shown in table 1
Apply the parts by weight component that example is related to：
Component (the unit of 1 embodiment of table：Parts by weight)
Further more, the carrier is Detitanium-ore-type poriferous titanium dioxide, in CHA skeletons zeolite, silicoaluminophosphamolecular molecular sieve
It is a kind of；The transition metal for Fe, Co, Ni, Cu, Zn, Mo, Ce, Ru, Rh, Pd, Ag, In, Sn, Re, Ir, Au, La, Ce, W,
It is a kind of or a combination thereof in Bi, Pt, and the grain size scale of transition metal is less than 400nm.Specific choice and combination according to
System and containing S, N amount determine.
Above example is only to illustrate the preferred technical solution of the present invention, it is noted that for the general of the art
For logical technical staff, without departing from the principle of the present invention, several improvement made or equivalent substitution are accordingly to be regarded as this
The protection domain of invention should be covered in scope of the presently claimed invention.
Claims (7)
1. a kind of efficient emission-reducing high pressure SCR system peculiar to vessel, which is characterized in that include urea tank, urea pump, steaming successively from front to back
Device, high speed jet pump, distributor pipe group, SCR tanks, tail gas tank are sent out, stored urea in the urea tank, urea pump is by the urine of liquefied
Element squeezes into evaporator, and the base of evaporator has heating unit, internal placement support plate, zinc oxide, the steaming are loaded on support plate
After the device port of export is sent out by a strainer valve, then high speed jet pump is connected backward, the high speed jet pump connects distributor pipe backward
Group；
The distributor pipe group includes several groups of evenly distributed distribution single tubes, has electromagnetism tune successively on the every distribution single tube
Section valve and check valve, the solenoid valve interlocking of signals simultaneously connect actuator, actuator connection DCS system, the distributor pipe
Group leads to the arrival end of SCR tanks；
The SCR tanks face arrival end is distributed filler net, and SCR catalyst, several direction accesses in SCR tanks side are loaded in filler net
Diesel Engine Exhaust Pipe, the Diesel Engine Exhaust Pipe connect steam branch pipe, and SCR tanks also install pressure indicator, Diesel Engine Exhaust Pipe
On the exhaust regulating valve that has interlocked with pressure indicator and be connected DCS system, SCR tanks tail end connection tail gas tank, the SCR tanks
Interior operating pressure is not less than 2.4MPa, and temperature is not less than 215 DEG C.
A kind of 2. efficient emission-reducing high pressure SCR system peculiar to vessel according to claim 1, which is characterized in that the SCR tanks rear end
Booster is set, and operating pressure is 2.6 ~ 4.8MPa in SCR tanks, and tail end blowing pressure is not less than 1.0MPa, the steam branch pipe
It is passed through 225 ~ 250 DEG C of superheated steams.
A kind of 3. efficient emission-reducing high pressure SCR system peculiar to vessel according to claim 2, which is characterized in that the SCR top tank structures
Heater strip is set, the heater switch connection DCS system that heater strip has.
A kind of 4. efficient emission-reducing high pressure SCR system peculiar to vessel according to claim 1, which is characterized in that the distributor pipe group
Including 6 ~ 12 component cloth single tubes.
A kind of 5. efficient emission-reducing high pressure SCR system peculiar to vessel according to claim 1, which is characterized in that the SCR catalysis
Agent includes carrier and active catalytic object, and the active catalytic object includes the component of following parts by weight：
45-60 parts of vanadic anhydride
25-38 parts of tungstic acid
3-6 parts of cerium oxide
15-22 parts of alumina-silica Ludox
6-10 parts of manganese sulfate
2-4 parts of benzenediol
5-12 parts of magnesia
8-14 parts of titanium dioxide
0.2-0.5 parts of transition metal.
6. a kind of efficient emission-reducing high pressure SCR system peculiar to vessel according to claim 5, which is characterized in that the carrier is sharp
One kind in titanium ore type poriferous titanium dioxide, CHA skeletons zeolite, silicoaluminophosphamolecular molecular sieve.
A kind of 7. efficient emission-reducing high pressure SCR system peculiar to vessel according to claim 5, which is characterized in that the transition metal
For one kind in Fe, Co, Ni, Cu, Zn, Mo, Ce, Ru, Rh, Pd, Ag, In, Sn, Re, Ir, Au, La, Ce, W, Bi, Pt or
It is combined, and the grain size scale of transition metal is less than 400nm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711193878.1A CN108071456B (en) | 2017-11-24 | 2017-11-24 | Marine high-efficient emission reduction high pressure SCR system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711193878.1A CN108071456B (en) | 2017-11-24 | 2017-11-24 | Marine high-efficient emission reduction high pressure SCR system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108071456A true CN108071456A (en) | 2018-05-25 |
| CN108071456B CN108071456B (en) | 2020-09-11 |
Family
ID=62157489
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711193878.1A Active CN108071456B (en) | 2017-11-24 | 2017-11-24 | Marine high-efficient emission reduction high pressure SCR system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108071456B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109437120A (en) * | 2018-11-02 | 2019-03-08 | 云南驰宏锌锗股份有限公司 | A kind of achievable ISA furnace smelts the technical application of cigarette and sulfuric acid heating |
| CN109973187A (en) * | 2019-03-29 | 2019-07-05 | 无锡威孚力达催化净化器有限责任公司 | Marine diesel post-processes control method and control device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102132019A (en) * | 2009-09-18 | 2011-07-20 | 光星(株) | SCR system having bypass system |
| CN103025427A (en) * | 2010-04-13 | 2013-04-03 | 美礼联无机化工公司 | Vanadia-based denox catalysts and catalyst supports |
| CN205297695U (en) * | 2015-09-28 | 2016-06-08 | 中国船舶重工集团公司第七研究院 | Control system is sprayed to ship machine SCR multichannel |
| CN105771649A (en) * | 2016-05-06 | 2016-07-20 | 哈尔滨工程大学 | Composite device for aftertreatment of ship low-speed diesel engine end gas |
| KR20170112655A (en) * | 2016-04-01 | 2017-10-12 | 현대중공업 주식회사 | Selective catalytic reduction system of low pressure |
-
2017
- 2017-11-24 CN CN201711193878.1A patent/CN108071456B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102132019A (en) * | 2009-09-18 | 2011-07-20 | 光星(株) | SCR system having bypass system |
| CN103025427A (en) * | 2010-04-13 | 2013-04-03 | 美礼联无机化工公司 | Vanadia-based denox catalysts and catalyst supports |
| CN205297695U (en) * | 2015-09-28 | 2016-06-08 | 中国船舶重工集团公司第七研究院 | Control system is sprayed to ship machine SCR multichannel |
| KR20170112655A (en) * | 2016-04-01 | 2017-10-12 | 현대중공업 주식회사 | Selective catalytic reduction system of low pressure |
| CN105771649A (en) * | 2016-05-06 | 2016-07-20 | 哈尔滨工程大学 | Composite device for aftertreatment of ship low-speed diesel engine end gas |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109437120A (en) * | 2018-11-02 | 2019-03-08 | 云南驰宏锌锗股份有限公司 | A kind of achievable ISA furnace smelts the technical application of cigarette and sulfuric acid heating |
| CN109973187A (en) * | 2019-03-29 | 2019-07-05 | 无锡威孚力达催化净化器有限责任公司 | Marine diesel post-processes control method and control device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108071456B (en) | 2020-09-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108071456A (en) | A kind of efficient emission-reducing high pressure SCR system peculiar to vessel | |
| CN101985893B (en) | Exhaust gas treatment system | |
| CN208786362U (en) | A kind of liquid organic hydrogen storage material hydrogenation system | |
| CN106089507B (en) | For managing the method and system of condensate | |
| CN202789025U (en) | Urea injection system for reducing emission of nitrogen oxide (NOx) of engine | |
| CN104110293A (en) | Marine diesel engine SCR common rail type urea solution spraying system | |
| CN103975137A (en) | Dosing arrangement for a liquid exhaust gas after-treatment medium and dosing method | |
| CN115513502A (en) | PEMFC system for high-pressure ammonia cracking and front-mounted ammonia recovery and back-mounted hydrogen recovery and operation method | |
| CN114790956B (en) | Marine ammonia fuel engine emission reduction device and control method | |
| CN206092129U (en) | Tail gas after -treatment system for diesel engine | |
| CN205618233U (en) | Ethanol steam reforming becomes hydrogen system H2 -SCR system | |
| CN212719174U (en) | LNG (liquefied Natural gas) supply system for dual-fuel ship engine | |
| CN208106583U (en) | A kind of picking-up vehicle starter control system | |
| CN204003017U (en) | Ship machine SCR joint-track type adds blue ejecting system | |
| CN208281022U (en) | It is atomized mixing tube and cleaning device of tail gas of diesel vehicle | |
| CN218784611U (en) | Polyester slurry preparation tank tail gas leaching device | |
| CN105840277A (en) | H2-SCR system for reforming alcohol water steam into hydrogen | |
| CN216987592U (en) | Hydrogenation catalyst performance evaluation device with gas circulation system | |
| CN219953479U (en) | Urea supply system and vehicle | |
| CN208727173U (en) | Wet desulfurization system | |
| CN206188690U (en) | Be used for producing automobile -used ureal reaction unit | |
| CN205683829U (en) | Urea liquid proportioning tank for SNCR flue gas denitrification system | |
| CN210950786U (en) | Supercharging device for tank car | |
| CN216877918U (en) | Recovery device for reaction kettle | |
| CN216043958U (en) | Marine diesel engine tail gas processing apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |