DK201470377A - Urea solution spraying structure - Google Patents

Urea solution spraying structure

Info

Publication number
DK201470377A
DK201470377A DKPA201470377A DKPA201470377A DK201470377A DK 201470377 A DK201470377 A DK 201470377A DK PA201470377 A DKPA201470377 A DK PA201470377A DK PA201470377 A DKPA201470377 A DK PA201470377A DK 201470377 A DK201470377 A DK 201470377A
Authority
DK
Denmark
Prior art keywords
exhaust
urea solution
spraying structure
pathway
solution spraying
Prior art date
Application number
DKPA201470377A
Other languages
Danish (da)
Inventor
Okazaki Shigeki
Original Assignee
Hitachi Shipbuilding Eng Co
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 Hitachi Shipbuilding Eng Co filed Critical Hitachi Shipbuilding Eng Co
Publication of DK201470377A publication Critical patent/DK201470377A/en
Application granted granted Critical
Publication of DK178838B1 publication Critical patent/DK178838B1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86—Catalytic processes
    • B01D53/90—Injecting reactants
    • 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]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/20—Reductants
    • B01D2251/206—Ammonium compounds
    • B01D2251/2067—Urea
    • 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
    • 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
    • F01N2610/08—Adding substances to exhaust gases with prior mixing of the substances with a gas, e.g. air
    • 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
    • F01N2610/08—Adding substances to exhaust gases with prior mixing of the substances with a gas, e.g. air
    • F01N2610/085—Controlling the air supply
    • 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
    • F01N2610/10—Adding substances to exhaust gases the substance being heated, e.g. by heating tank or supply line of the added substance
    • F01N2610/102—Adding substances to exhaust gases the substance being heated, e.g. by heating tank or supply line of the added substance after addition to exhaust gases, e.g. by a passively or actively heated surface in the exhaust conduit
    • 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

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Environmental & Geological Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Biomedical Technology (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)

Abstract

[Problem] To suppress the production of by-products even when SO3 content in exhaust gas is high, or when urea solution is sprayed in a region in which the temperature of the exhaust gas is low. [Solution] A urea solution spraying structure supplies ammonia to an SCR catalyst 6a of a denitrogenation reactor 6 of an exhaust-gas purifying device 7. The denitrogenation reactor 6 is arranged between an exhaust manifold 3 that collects exhaust gas discharged from exhaust connection pipes 2 connected to exhaust ports 1a of an engine 1 and an exhaust pathway 5 upstream of a turbine 4a of a turbo charger 4. The urea solution spraying structure includes an evaporation pipe 10 arranged in the exhaust manifold 3 and connected to a branch pipe 9 branched from an air supply pathway 8 downstream of a compressor 4b of the turbo charger 4, and a nozzle 11 that sprays urea solution in air that passes through the evaporation pipe 10. [Effect] Corrosion and obstruction of the exhaust pathway can be prevented, and performance of the SCR catalyst can be properly maintained.
DKPA201470377A 2011-12-13 2014-06-23 Urea solution spraying structure DK178838B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2011272391A JP5753485B2 (en) 2011-12-13 2011-12-13 Urea water spray structure
PCT/JP2012/078166 WO2013088850A1 (en) 2011-12-13 2012-10-31 Aqueous urea-spraying structure

Publications (2)

Publication Number Publication Date
DK201470377A true DK201470377A (en) 2014-06-23
DK178838B1 DK178838B1 (en) 2017-03-13

Family

ID=48612307

Family Applications (1)

Application Number Title Priority Date Filing Date
DKPA201470377A DK178838B1 (en) 2011-12-13 2014-06-23 Urea solution spraying structure

Country Status (6)

Country Link
JP (1) JP5753485B2 (en)
KR (1) KR102001477B1 (en)
CN (1) CN103890335B (en)
CH (1) CH707487B1 (en)
DK (1) DK178838B1 (en)
WO (1) WO2013088850A1 (en)

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JPWO2014054607A1 (en) * 2012-10-02 2016-08-25 日揮触媒化成株式会社 Marine exhaust gas treatment equipment
CN103488824A (en) * 2013-09-06 2014-01-01 广东电网公司电力科学研究院 Field operation optimization method for SCR (selective catalytic reduction) denitration system
GB2518360B (en) 2013-09-17 2018-01-24 Jaguar Land Rover Ltd Exhaust treatment apparatus and method
JP6136960B2 (en) 2014-01-31 2017-05-31 トヨタ自動車株式会社 Exhaust system structure of internal combustion engine
CN103883377B (en) * 2014-04-09 2016-06-01 成都沐杰科技有限公司 A kind of urea soln fast hydrolyzing device
JP5801449B1 (en) * 2014-06-10 2015-10-28 サムソン ヘビー インダストリーズ カンパニー，リミテッド Marine waste heat recovery system
DE102014017790A1 (en) * 2014-12-03 2016-06-09 Man Truck & Bus Ag Exhaust after-treatment system for a vehicle operated by an internal combustion engine, in particular for a watercraft
US10060316B2 (en) 2015-06-29 2018-08-28 General Electric Company Power generation system exhaust cooling
US9752503B2 (en) 2015-06-29 2017-09-05 General Electric Company Power generation system exhaust cooling
US9752502B2 (en) 2015-06-29 2017-09-05 General Electric Company Power generation system exhaust cooling
US9856768B2 (en) 2015-06-29 2018-01-02 General Electric Company Power generation system exhaust cooling
US9840953B2 (en) 2015-06-29 2017-12-12 General Electric Company Power generation system exhaust cooling
US9850794B2 (en) 2015-06-29 2017-12-26 General Electric Company Power generation system exhaust cooling
US10087801B2 (en) 2015-06-29 2018-10-02 General Electric Company Power generation system exhaust cooling
US9938874B2 (en) 2015-06-29 2018-04-10 General Electric Company Power generation system exhaust cooling
US10215070B2 (en) 2015-06-29 2019-02-26 General Electric Company Power generation system exhaust cooling
US10077694B2 (en) 2015-06-29 2018-09-18 General Electric Company Power generation system exhaust cooling
US20160376908A1 (en) * 2015-06-29 2016-12-29 General Electric Company Power generation system exhaust cooling
US10030558B2 (en) 2015-06-29 2018-07-24 General Electric Company Power generation system exhaust cooling
US9850818B2 (en) 2015-06-29 2017-12-26 General Electric Company Power generation system exhaust cooling
CN105673159A (en) * 2016-02-02 2016-06-15 潍柴动力股份有限公司 Engine exhaust system and engine applying same
DE102016205299A1 (en) * 2016-03-31 2017-10-05 Man Diesel & Turbo Se Internal combustion engine with exhaust aftertreatment system
KR20170135093A (en) * 2016-05-30 2017-12-08 두산엔진주식회사 Reducing agent decomposition system
US10316759B2 (en) 2016-05-31 2019-06-11 General Electric Company Power generation system exhaust cooling
KR102137323B1 (en) * 2018-11-20 2020-07-23 에이치에스디엔진 주식회사 Selective catalytic reduction system
CN109395581B (en) * 2018-12-17 2024-03-22 青岛双瑞海洋环境工程股份有限公司 Ship exhaust gas denitration system
KR102117663B1 (en) * 2019-07-25 2020-06-01 이승엽 Spraying device for Chemical Material Using Compressed Air
JP7254010B2 (en) * 2019-11-19 2023-04-07 日立造船株式会社 Hydrolysis system, denitrification equipment, and control method for hydrolysis system
CN113184879A (en) * 2021-05-20 2021-07-30 山东省中医药研究院 Method for catalyzing urea hydrolysis by using nano-alumina

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Also Published As

Publication number Publication date
CN103890335A (en) 2014-06-25
KR102001477B1 (en) 2019-07-18
KR20140105435A (en) 2014-09-01
CN103890335B (en) 2017-06-09
WO2013088850A1 (en) 2013-06-20
CH707487B1 (en) 2017-05-15
DK178838B1 (en) 2017-03-13
JP2013124555A (en) 2013-06-24
JP5753485B2 (en) 2015-07-22

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Effective date: 20231031