CN106762064A - A kind of denitration of gas internal-combustion engine distributed energy and noise reduction integrated apparatus - Google Patents

A kind of denitration of gas internal-combustion engine distributed energy and noise reduction integrated apparatus Download PDF

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Publication number
CN106762064A
CN106762064A CN201710144617.4A CN201710144617A CN106762064A CN 106762064 A CN106762064 A CN 106762064A CN 201710144617 A CN201710144617 A CN 201710144617A CN 106762064 A CN106762064 A CN 106762064A
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CN
China
Prior art keywords
denitration
combustion engine
integrated apparatus
noise reduction
gas internal
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.)
Pending
Application number
CN201710144617.4A
Other languages
Chinese (zh)
Inventor
郭甲生
高顶云
周大汉
高慧峰
张扬
冯东瑾
唐继旭
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHANGHAI AEROSPACE ENERGY Co.,Ltd.
Guangzhou Power Supply Bureau of Guangdong Power Grid Co Ltd
Original Assignee
SHANGHAI AEROSPACE ENERGY CO Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by SHANGHAI AEROSPACE ENERGY CO Ltd filed Critical SHANGHAI AEROSPACE ENERGY CO Ltd
Priority to CN201710144617.4A priority Critical patent/CN106762064A/en
Publication of CN106762064A publication Critical patent/CN106762064A/en
Pending legal-status Critical Current

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
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/007—Apparatus used as intake or exhaust silencer
    • 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
    • F01N1/00—Silencing apparatus characterised by method of silencing
    • F01N1/08—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling
    • F01N1/082—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling the gases passing through porous members
    • 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
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/14—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having thermal insulation
    • 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
    • F01N3/105—General auxiliary catalysts, e.g. upstream or downstream of the main catalyst
    • F01N3/106—Auxiliary oxidation catalysts
    • 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
    • F01N3/24—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
    • 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
    • F01N2570/00—Exhaust treating apparatus eliminating, absorbing or adsorbing specific elements or compounds
    • F01N2570/10—Carbon or carbon oxides
    • 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
    • F01N2570/00—Exhaust treating apparatus eliminating, absorbing or adsorbing specific elements or compounds
    • F01N2570/14—Nitrogen oxides
    • 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

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Materials Engineering (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Exhaust Gas After Treatment (AREA)

Abstract

A kind of denitration of gas internal-combustion engine distributed energy and noise reduction integrated apparatus, for the fume emission treatment of gas internal-combustion engine in distributed energy, be integrated in the device for denitration and noise reduction this 2 process procedures by the denitration and noise reduction integrated apparatus, the integrated apparatus are internally formed sudden expansion reative cell, device one end connect be connect flue gas input mixation tube section, what the other end of device was connected is the smoke evacuation pipeline section for fume emission, SCR catalyst layer and quieter material layer are provided with the integrated apparatus, SCR catalyst layer is in close to one end of mixation tube section in device, quieter material layer is in device close to one end of smoke evacuation pipeline section, current equalizer is provided with the porch of mixation tube section, mixation tube section is additionally provided with urea injector.The device is arranged in gas internal-combustion engine smoke evacuation and is exported between waste heat utilization equipment, is connected by smoke pipe flange, is arranged or is arranged on computer room ground using built on stilts suspension and support.

Description

A kind of denitration of gas internal-combustion engine distributed energy and noise reduction integrated apparatus
Technical field
The invention belongs to distributed energy technical field, more particularly to a kind of denitration of gas internal-combustion engine distributed energy and disappear Sound integrated apparatus.
Background technology
The Distribution of Natural formula energy as natural gas a kind of clean and effective Land use systems, it is used as improving atmosphere pollution A kind of effective measure also gradually obtains the accreditation of society and enterprise, and distributed energy is typically mounted near user, therefore is brought The worry of user is also adjoined in disposal of pollutants, in actual items implementation process, also faces the check requirements of environmental impact assessment.
Used as one kind of distributed energy, gas internal-combustion engine, namely internal-combustion piston engine, its basic functional principle are to fire Gas and air mix, and in its gas in-cylinder combustion, the heat energy for discharging makes to produce the flue gas of HTHP in cylinder.Flue gas expansion is pushed away Piston is done work, then is exported mechanical work by toggle or other mechanisms, drives electrical power generators.Reciprocating-piston The part of oil-electric engine group mainly have toggle, body and cylinder head, valve actuating mechanism, air inlet system and exhaust system, Gas burning system, ignition system, lubricating system, cooling system, starting device, TRT etc..If boosting internal combustion engine generator Group, should also there is pressure charging system.
Its NOx emission of the gas internal-combustion engine of standard type is 500mg/Nm3(5%O2), if taking the technologies such as lean burn to arrange Apply, control engine cylinder temperature, its NOx emission also only can be controlled in 250mg/Nm3(5%O2) left and right, therefore, for environment It is required that occasion higher, such as hospital, business district, residential area, to meet project environmental impact assessment requirement, may also need to further increase Denitration facility.In addition, internal combustion engine smoke evacuation noise is generally higher than 110~120dBa, smoke evacuation muffler reduction noise need to be generally set up It is emitted into and meets project environmental impact assessment and occupational health requirement.
In the Distribution of Natural formula energy internal combustion engine used due to NOx emission and noise it is higher, and generally project typically install Near user, therefore bring disposal of pollutants also to adjoin the worry of user, in actual items implementation process, also face environmental impact assessment Check requirements.To reduce NOx emission and reducing influence of noise, prior art is usually carries out denitration process using SCR modes, separately Outward, installing the modes such as smoke evacuation muffler additional on flue gases duct reduces smoke evacuation noise, as shown in Figure 1.
But different from conventional power plant denitration mode, Distribution of Natural formula energy source use has its special consideration：
1. project is typically arranged in the computer room with energy supply object building or region one, and site space and arrangement condition have Limit；
2. internal combustion engine fume afterheat needs to make full use of to improve system primary energy utilization ratio, therefore, flue gas system Need to generally increase the equipment such as flue gas lithium bromide chiller, waste heat boiler, flue gas heat-exchange unit recycle waste heat, its flue gas resistance compared with Greatly.In addition, along with the equipment such as SCR denitration and flue gas muffler and flue gas pipeline SR, internal combustion may be exceeded The general backpressure requirements scope of machine (5000~6000Pa of maximum), therefore, need to as far as possible optimize reduction smoke evacuation system resistance；
3. the lectotype selection such as existing SCR denitration and flue gas muffler and each equipment skill of itself is often individually considered during design , there is the situation of design iterations and requirement in art requirement.
The content of the invention
The present invention is directed to the problems of the prior art, it is proposed that a kind of denitration of gas internal-combustion engine distributed energy and noise reduction one Body makeup is put.
A kind of denitration of gas internal-combustion engine distributed energy and noise reduction integrated apparatus, for combustion gas internal combustion in distributed energy Denitration and noise reduction this 2 process procedures are integrated in the dress by the fume emission treatment of machine, the denitration and noise reduction integrated apparatus In putting,
The integrated apparatus are internally formed sudden expansion reative cell, device one end connect be connect flue gas input mixing Pipeline section, the other end connection of device is smoke evacuation pipeline section for fume emission,
SCR catalyst layer and quieter material layer are provided with the integrated apparatus, SCR catalyst layer is in device Close to one end of mixation tube section, quieter material layer is in close to one end of smoke evacuation pipeline section in device,
Current equalizer is provided with the porch of mixation tube section, mixation tube section is additionally provided with urea injector.
Further, the device is arranged in gas internal-combustion engine smoke evacuation and is exported between waste heat utilization equipment, by smoke pipe method Orchid connection, is arranged or is arranged on computer room ground using built on stilts suspension and support.
Further, the crust of the device is provided with heat insulation layer.
Further, the device is provided with condensed water outlet mouthful, facilitates condensed water in discharger.
Further, the side of catalyst layer is placed in the device, maintenance door is set, be easy to catalyst change and maintenance.
Be integrated in one for existing two functional devices being independently arranged by the present invention, comprehensively meets denitration and noise reduction technology It is required that；Reduce equipment size, be easy to optimize division of room.
The present invention relative to existing process program, in the case where similar technology requirement is reached, reduce device volume 25% with On；Reduce and use material, equipment installation operation is easy, it is easy using process；Meanwhile, NOx emission reduction removal efficiency is made an uproar up to 95% Sound reduction is up to 60dBa.
Brief description of the drawings
Fig. 1 is process flow diagram of the prior art.
Fig. 2 is process flow diagram of the invention.
Fig. 3 is integrated apparatus schematic diagram of the invention.
Wherein, 1 --- current equalizer, 2 --- urea injector, 3 --- mixation tube section, 4 --- SCR catalyst layer, 5 --- Quieter material layer, 6 --- crust of the device, 7 --- smoke evacuation pipeline section.
Specific embodiment
As shown in Figures 2 and 3, the present invention is to be applied to the formula energy denitration of internal combustion engine Distribution of Natural and noise reduction one makeup Put, using honeycomb-shaped SCR denitrating catalyst, with certain sound-deadening and noise-reducing effect, in addition, in conjunction with project demands, in device Portion sets up noise reduction section, while realizing reducing internal combustion engine DS NOx Est and reducing the effect of noise emission.
Internal combustion engine Distribution of Natural formula energy denitration of the invention and noise reduction integrated apparatus, focus on internal combustion engine flue gas Middle NOx, CO discharge, and reduce smoke evacuation noise, with small volume, low cost, install and use simplicity the characteristics of.In specific implementation In, can by the device flexible arrangement in distributed energy computer room, typically can be disposed at internal combustion engine smoke evacuation be exported to UTILIZATION OF VESIDUAL HEAT IN Between equipment, connected by smoke pipe flange, can make somebody a mere figurehead and arrange or be arranged on computer room ground using suspension and support.
Urea liquid passes through injector and internal combustion engine smoke evacuation high-temperature flue gas through current equalizer in mixation tube section according to certain flow Interior pyrolysis, mixing, into a sudden expansion reative cell, cigarette are removed in the presence of cellular porous SCR catalyst, oxidation catalyst etc. NOx and CO in gas, then by porous and rigid quieter material layer, to reach and enter smoke evacuation by a sudden contraction after noise lowers the requirement Pipeline is discharged.Single unit system considers that flue-gas temperature is higher, need to increase heat insulation layer when implementing, and meets occupation health safety It is required that, meanwhile, condensed water outlet mouthful is set, facilitate condensed water in discharger.In addition, the side of catalyst layer is placed in device, Maintenance door is set, is easy to catalyst change and maintenance.

Claims (5)

1. a kind of denitration of gas internal-combustion engine distributed energy and noise reduction integrated apparatus, for gas internal-combustion engine in distributed energy Fume emission treatment, it is characterised in that the denitration and noise reduction integrated apparatus are by denitration and noise reduction this 2 process procedure collection Into in the device,
The integrated apparatus are internally formed sudden expansion reative cell, device one end connect be connect flue gas input mixing tube Section, the other end connection of device is smoke evacuation pipeline section for fume emission,
SCR catalyst layer and quieter material layer are provided with the integrated apparatus, SCR catalyst layer is in device in close One end of mixation tube section, quieter material layer is in close to one end of smoke evacuation pipeline section in device,
Current equalizer is provided with the porch of mixation tube section, mixation tube section is additionally provided with urea injector.
2. gas internal-combustion engine distributed energy as claimed in claim 1 denitration and noise reduction integrated apparatus, it is characterised in that should Device is arranged in gas internal-combustion engine smoke evacuation and is exported between waste heat utilization equipment, is connected by smoke pipe flange, is hung using built on stilts branch Frame is arranged or is arranged on computer room ground.
3. gas internal-combustion engine distributed energy as claimed in claim 2 denitration and noise reduction integrated apparatus, it is characterised in that should Crust of the device is provided with heat insulation layer.
4. gas internal-combustion engine distributed energy as claimed in claim 3 denitration and noise reduction integrated apparatus, it is characterised in that should Device is provided with condensed water outlet mouthful, facilitates condensed water in discharger.
5. gas internal-combustion engine distributed energy as claimed in claim 4 denitration and noise reduction integrated apparatus, it is characterised in that The device places the side of catalyst layer, sets maintenance door, is easy to catalyst change and maintenance.
CN201710144617.4A 2017-03-13 2017-03-13 A kind of denitration of gas internal-combustion engine distributed energy and noise reduction integrated apparatus Pending CN106762064A (en)

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CN201710144617.4A CN106762064A (en) 2017-03-13 2017-03-13 A kind of denitration of gas internal-combustion engine distributed energy and noise reduction integrated apparatus

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109453665A (en) * 2018-10-16 2019-03-12 中国华电科工集团有限公司 A kind of urea liquid pyrolysis installation and method applied to denitrating system

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US5478531A (en) * 1993-04-28 1995-12-26 Ajiawasu Kabushiki Kaisha Muffling and denitrating apparatus
JP2000204933A (en) * 1999-01-07 2000-07-25 Niigata Eng Co Ltd Denitration reactor with silencer
EP1357267A2 (en) * 2002-04-24 2003-10-29 J. Eberspächer GmbH Co. KG Exhaust gas treating apparatus with silencer for a diesel engine
US20040040288A1 (en) * 2002-02-14 2004-03-04 Eberhard Jacob Method and apparatus for producing ammonia (NH3)
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US20140311125A1 (en) * 2011-07-01 2014-10-23 Sigan Peng Method, apparatus, and system used for purifying and silencing exhaust of internal combustion engine
CN204933221U (en) * 2015-07-28 2016-01-06 中国华电工程(集团)有限公司 A kind of denitrating flue gas treatment system in conjunction with distributed system
CN105402009A (en) * 2015-12-17 2016-03-16 无锡威孚力达催化净化器有限责任公司 Spiral mixer for integrated injection of SCR catalyst
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CN106337714A (en) * 2016-08-31 2017-01-18 郑州精益达汽车零部件有限公司 Nozzle-integrated SCR catalytic muffler
CN106401716A (en) * 2016-11-09 2017-02-15 郑丹 Tail gas denitration device of natural gas internal combustion engine generator
CN205948653U (en) * 2016-08-23 2017-02-15 重庆瑞宝智慧能源有限公司 Sled dress formula flue gas denitration device
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US5457290A (en) * 1990-07-11 1995-10-10 Ebara Corporation Catalyzer-containing muffler
US5478531A (en) * 1993-04-28 1995-12-26 Ajiawasu Kabushiki Kaisha Muffling and denitrating apparatus
JP2000204933A (en) * 1999-01-07 2000-07-25 Niigata Eng Co Ltd Denitration reactor with silencer
US20040040288A1 (en) * 2002-02-14 2004-03-04 Eberhard Jacob Method and apparatus for producing ammonia (NH3)
EP1357267A2 (en) * 2002-04-24 2003-10-29 J. Eberspächer GmbH Co. KG Exhaust gas treating apparatus with silencer for a diesel engine
US20070169467A1 (en) * 2004-02-02 2007-07-26 Daisuke Shirai Scr muffler
US20070175204A1 (en) * 2004-02-12 2007-08-02 Tokyo Roki Co, Ltd SCR muffler
JP2006207531A (en) * 2005-01-31 2006-08-10 Ishikawajima Harima Heavy Ind Co Ltd Muffler integrated type denitration device, internal combustion engine provided with denitration device and power generation system provided with internal combustion engine
WO2008006383A1 (en) * 2006-07-14 2008-01-17 Silentor Holding A/S Manufacture-friendly silencer
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CN205948653U (en) * 2016-08-23 2017-02-15 重庆瑞宝智慧能源有限公司 Sled dress formula flue gas denitration device
CN106337714A (en) * 2016-08-31 2017-01-18 郑州精益达汽车零部件有限公司 Nozzle-integrated SCR catalytic muffler
CN106401716A (en) * 2016-11-09 2017-02-15 郑丹 Tail gas denitration device of natural gas internal combustion engine generator
CN206582013U (en) * 2017-03-13 2017-10-24 上海航天能源股份有限公司 A kind of gas internal-combustion engine distributed energy denitration and noise reduction integrated apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109453665A (en) * 2018-10-16 2019-03-12 中国华电科工集团有限公司 A kind of urea liquid pyrolysis installation and method applied to denitrating system

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