WO2008125745A2 - Utilisation d'une solution aqueuse pour le traitement des gaz d'echappement des moteurs diesel - Google Patents

Utilisation d'une solution aqueuse pour le traitement des gaz d'echappement des moteurs diesel Download PDF

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Publication number
WO2008125745A2
WO2008125745A2 PCT/FR2008/000186 FR2008000186W WO2008125745A2 WO 2008125745 A2 WO2008125745 A2 WO 2008125745A2 FR 2008000186 W FR2008000186 W FR 2008000186W WO 2008125745 A2 WO2008125745 A2 WO 2008125745A2
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WO
WIPO (PCT)
Prior art keywords
polyalkoxylated
solution according
acid esters
fatty acid
aqueous solution
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.)
Ceased
Application number
PCT/FR2008/000186
Other languages
English (en)
French (fr)
Other versions
WO2008125745A3 (fr
Inventor
Pierre Schmelzle
Leire Oro-Urrea
Stéphanie ESCOFFIER
Françoise DOUCE
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.)
TotalEnergies Marketing Services SA
Original Assignee
Total France SA
Total Raffinage Marketing SA
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 Total France SA, Total Raffinage Marketing SA filed Critical Total France SA
Priority to UAA200909515A priority Critical patent/UA97138C2/ru
Priority to KR1020097019646A priority patent/KR101520918B1/ko
Priority to ES08761883T priority patent/ES2728802T3/es
Priority to JP2009550300A priority patent/JP5372781B2/ja
Priority to MX2009008927A priority patent/MX2009008927A/es
Priority to PL08761883T priority patent/PL2129452T3/pl
Priority to RU2009134927/05A priority patent/RU2469775C2/ru
Priority to CA2679088A priority patent/CA2679088C/en
Priority to DK08761883.1T priority patent/DK2129452T3/da
Priority to EP08761883.1A priority patent/EP2129452B1/fr
Priority to AU2008237807A priority patent/AU2008237807B2/en
Priority to BRPI0806791-0A priority patent/BRPI0806791A2/pt
Priority to US12/528,069 priority patent/US7947241B2/en
Publication of WO2008125745A2 publication Critical patent/WO2008125745A2/fr
Publication of WO2008125745A3 publication Critical patent/WO2008125745A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
    • B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
    • B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
    • B01D53/9404—Removing only nitrogen compounds
    • B01D53/9409—Nitrogen oxides
    • 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
    • F01N3/206—Adding periodically or continuously substances to exhaust gases for promoting purification, e.g. catalytic material in liquid form, NOx reducing agents
    • 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
    • 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
    • F01N2610/06—Adding substances to exhaust gases the substance being in the gaseous form
    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
    • 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

Definitions

  • the present invention relates to a solution for the treatment of exhaust gases at the output of onboard or stationary diesel engines. It also relates to its use in any device for treating these exhaust gases that the engines are heavy-duty engines or engines for light vehicles or engines for stationary industrial applications.
  • the SCR post-treatment consists in reducing NOx or nitrogen oxides on a catalyst containing platinum and palladium, and in the presence of gaseous ammonia.
  • ammonia gas To introduce ammonia gas into the exhaust, it is known to produce it directly in the pipe before the SCR by vaporizing an aqueous solution of urea which, placed at an average temperature generally oscillating from 200 to 400 ° C., gradually breaks down into gaseous ammonia.
  • No. 5,489,419 describes a process for reducing the pollutants generated during combustion, more particularly NOx, by selective non-catalytic reduction (SNCR), by means of a reducing agent for NOx, generally urea, in aqueous solution.
  • SNCR selective non-catalytic reduction
  • D1 proposes adding a surfactant to the aqueous urea solution so as to obtain a urea spray whose average Droplets are decreased and their distribution narrower than a urea spray without surfactant.
  • US Pat. No. 5,645,756 proposes to improve the reliability of the devices put in contact with aqueous solutions of urea, prepared with water having a not inconsiderable hardness, due to the presence of ions calcium, magnesium, carbonate, ... ( see Col. 3, lines 13-49).
  • D2 proposes adding to the aqueous solutions of urea a compound for removing the hardness of the water, chosen from water-soluble phosphonates.
  • WO 00/75643 discloses a method for controlling the amount of a urea solution implemented in a system for reducing NOx, especially in a catalytic selective reduction (SCR) combustion process.
  • This method consists in incorporating a fluorescent tracer in the urea solution and in following the evolution of the signal as a function of time, this fluorescent tracer may also have surfactant properties.
  • the present invention therefore provides the use of an aqueous solution comprising a major portion of a component capable of releasing gaseous ammonia above 200 0 C and a minor portion of at least one polyfunctional additive whose HLB ranges from 7 to 17 to limit the formation of cyanuric acid deposits in any spraying device for the aftertreatment of the exhaust gases, more particularly the SCR devices.
  • the aqueous solution contains a compound capable of decomposing into gaseous ammonia which vaporizes readily on injection and which strongly limits the cyanuric acid deposits on the "cold" walls.
  • this solution can be carried out in any spraying device for the aftertreatment of the exhaust gas.
  • the solution comprises from 15 to 40% of at least one constituent decomposing into gaseous ammonia and more than 10 ppm, preferably more than 100 ppm of at least one polyfunctional additive. According to a preferred embodiment, the solution comprises from 100 to 5000 ppm of at least one polyfunctional additive, preferably from 500 to 1000 ppm.
  • said component is selected from urea and its derivatives.
  • the polyfunctional additive is chosen from neutral, ionic and amphoteric surfactants which are soluble in water.
  • the additives composed of neutral surfactants are chosen from alkoxylated and polyalkoxylated linear alcohols, alkoxylated and polyalkoxylated alkylphenols, polyalkoxylated fatty acid esters, amine and amide derivatives, homopolymers and copolymers.
  • alkylene oxides preferably ethylene oxide and propylene oxide, the alkoxylated and polyalkoxylated polyalcohols, taken alone or as a mixture.
  • the additives composed of ionic surfactants are chosen from linear alkylamines and alkylammoniums, linear diamines, aromatic or saturated heterocycles containing one or more nitrogen atoms, cyclic imidazole compounds, etheramines and etheramides, oxyamines and ethoxyamines, taken alone or as a mixture.
  • the additives composed of amphoteric surfactants are chosen from amino acids and their imide or amide derivatives, taken alone or as a mixture.
  • the additives are chosen from polyalkoxylated linear or branched fatty alcohols comprising carbon chains of 3 to 40 carbon atoms and from 5 to 10 alkoxylated units and having an HLB ranging from 10 to 15, and the esters of polyalkoxylated fatty acids comprising from 1 to 40 alkoxylated units per ester chain and having a HLB ranging from 8 to 14.
  • the polyalkoxylated alcohols have ethoxylated and / or propoxylated groups.
  • the polyalkoxylated fatty acid esters are obtained from C5 to C24 carbon chain fatty acids with polyols comprising from 1 to 5 OH. and at least one alkylene oxide.
  • the polyalkoxylated fatty acid esters are polyalkoxylated glycol and / or glycerol fatty acid esters. In a preferred embodiment, the polyalkoxylated fatty acid esters are polyethoxylated and / or propoxylated fatty acid esters.
  • the solution further comprises anti-foam agents (alcohols, alkenes associated with one or more nonionic surfactants, ....), co-solvents intended to promote the dissolution of the surfactant or surfactants in the aqueous solution.
  • anti-foam agents alcohols, alkenes associated with one or more nonionic surfactants, ....
  • co-solvents intended to promote the dissolution of the surfactant or surfactants in the aqueous solution.
  • the invention is directed to an exhaust gas aftertreatment method SCR comprising the vaporization at a temperature of between 200 and 400 ° C. of an aqueous solution comprising a major part of a constituent capable of releasing ammonia gas above 200 ° C and a minor portion of at least one polyfunctional additive whose HLB varies from 7 to 17.
  • the aqueous solution is as defined above.
  • the present invention therefore relates to the use of an aqueous solution for limiting the formation of cyanuric acid-based deposits in any spraying device for the aftertreatment of the exhaust gases comprising a major part of a component capable of releasing ammonia gas by increasing the temperature and a minor part of at least one surfactant compound whose HLB varies from 7 to 17.
  • HLB hydrophilic / lipophilic balance of said additive used.
  • This aqueous solution is particularly advantageous because the droplets of solution being better dispersed because of its wettability characteristics and improved surface tension compared with the solutions of the prior art, they vaporize and decompose more easily into gaseous ammonia before reach the "cold" wall.
  • the solution comprises from 15 to 40% of at least one constituent decomposing into gaseous ammonia and more than 10 ppm, preferably more than 100 ppm, and advantageously at least one polyfunctional additive. .
  • the solution comprises from 100 to 5000 ppm, and advantageously from 500 to 1000 ppm of at least one polyfunctional additive.
  • said constituent is selected from urea and its derivatives.
  • the polyfunctional additive is preferably chosen from water-soluble neutral or non-ionic, ionic and amphoteric surfactants.
  • the additive composed of at least one neutral or nonionic surfactant is chosen from alkoxylated and polyalkoxylated linear alcohols, alkoxylated and polyalkoxylated alkylphenols, polyalkoxylated fatty acid esters, amine and amide derivatives, homopolymers and copolymers of alkylene oxides, preferably of ethylene oxide and propylene oxide, the alkoxylated and polyalkoxylated polyalcohols, taken alone or in admixture.
  • the additive composed of at least one ionic surfactant is chosen from linear alkylamines and alkylammoniums, linear diamines, aromatic or saturated heterocycles containing one or more nitrogen atoms, imidazole-type cyclic compounds. , etheramines and etheramides, oxyamines and ethoxyamines, alone or as a mixture.
  • the additive composed of at least one amphoteric surfactant is chosen from amino acids and their imide or amide derivatives, taken alone or as a mixture.
  • the additive is chosen from nonionic surfactants and advantageously from polyalkoxylated linear or branched fatty alcohols comprising carbon chains of 3 to 40 carbon atoms and from 5 to 10 alkoxylated units and having a HLB ranging from 10 to 15, and the polyalkoxylated fatty acid esters comprising from 1 to 40 alkoxy units per ester chain and having a HLB ranging from 8 to 14.
  • the polyalkoxylated alcohols have ethoxylated and / or propoxylated groups .
  • the additive is chosen from polyalkoxylated fatty acid esters obtained from C5 to C24 carbon chain fatty acids with polyols comprising from 1 to 5 OH, and at least one alkylene oxide. . It would not be departing from the scope of the invention if, to obtain these esters, alkylene oxides were reacted with vegetable or animal oils, for example rapeseed, sunflower, palm, soybean or pine oils. of tallow.
  • polyalkoxylated fatty acid esters polyalkoxylated glycol and / or glycerol fatty acid esters are preferred, these esters being more particularly polyethoxylated and / or propoxylated.
  • the aqueous solution may contain one or more other additives than the polyfunctional additives as defined above, such as, for example, anti-foam agents (alcohols, alkenes associated with one or more nonionic surfactants, etc.). solvents intended to promote the dissolution of the surfactant (s) in the aqueous solution.
  • the aqueous solution is prepared in the usual manner by processkange of its constituents, preferably at ambient temperature, typically in a temperature range generally from 10 to 60 0 C.
  • Polyfunctional additives soluble in water, more particularly at room temperature, are generally preferred. For reasons of rapid mixing of the constituents of the aqueous solution, it is preferred to avoid the pasty and / or solid components.
  • the aqueous solutions correspond to the ISO 2241-1 standard with regard to the quantities indicated in Table 1 of said standard: aldehydes, insoluble material, phosphate, calcium, iron, copper, zinc, chromium, nickel, aluminum, sodium, potassium, and generally do not contain any element and / or component in such quantity that it is likely to be SCR catalyst poison.
  • One embodiment of the invention is the use of the aqueous solution in any spraying device for aftertreatment of the exhaust gas, more particularly SCR devices.
  • Aqueous solutions referenced S 1 containing 32.5% urea in water and increasing concentrations of additives B to T, were prepared: they are described in Table I below.
  • B is a polyethoxylated fatty alcohol comprising 7.5 ethoxylated groups on a carbon chain of 27 carbons, HLB equal to 13.5 marketed by CECA SA
  • C is a polyethoxylated triglyceride comprising 30 ethoxylated units for a HLB of 12. It is pasty at room temperature and requires heating at 40 ° C. before being dissolved in an aqueous medium.
  • D is a mixture of alcohols, alkenes and nonionic surfactants.
  • E is a mixture of amines, C 12-18 alkyl dimethyls and N-oxides.
  • F is sodium octane-1-sulfonate, monohydrate.
  • G is a mixture of polyethylene glycol, polypropylene glycol, monobutyl ether. It is very pasty at room temperature.
  • H is a mixture of ethoxylated and propoxylated C10-12 alcohols.
  • I is a coconut diethanolamide.
  • J is a mixture of alkyl phosphate, octan-1-ol, and decan-1-ol.
  • K is a mixture of phosphoric acid, butyl ester, and potassium salt.
  • L is sodium dioctyl sulfosuccinate.
  • M is ethoxylated castor oil containing 20 ethoxylated units, HLB equal to
  • N is an ethoxylated triglyceride containing 30 ethoxylated units, of HLB equal to 1 1.8.
  • O is ethoxylated castor oil containing 40 ethoxylated units, HLB equal to 13. It is pasty at room temperature.
  • P is a mixture of ethoxylated C 12 -C 14 alcohols containing 10 ethoxylated units, HLB equal to 1 1.3.
  • Q is an ethoxylated canola oil containing 30 ethoxylated units, HLB equal to 1 1.3.
  • R is an ethoxylated triglyceride containing 60 ethoxylated units. It is pasty at room temperature.
  • S is an aliphatic polyether with acidic groups.
  • T is a mixture of copolymer, ethoxylated alcohol maleate and alpha-olefins.
  • aqueous solutions of urea, additivated or not are used on a bench engine representative of urban use (bus or refuse bin) under optimized temperature conditions to promote the production of deposit. It means temperatures between 250 and 320 0 C.
  • polyfunctional additive makes it possible to reduce the deposits in all cases with a greater or lesser efficiency. Some additives are used to achieve very low levels of deposits (up to 80% decrease in the deposit).
  • This example describes the influence of the additivation on the surface tension of the drops of the aqueous solution.
  • the size distribution of the drops in the urea spray was studied by laser diffraction. This study shows that the size distribution measured in the spray is not influenced by the presence of surfactant additive (measured on the mean equivalent diameter "SMD mid” and the diameter "Dv90").

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Environmental & Geological Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Biomedical Technology (AREA)
  • Combustion & Propulsion (AREA)
  • Toxicology (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Treating Waste Gases (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Gas Separation By Absorption (AREA)
PCT/FR2008/000186 2007-02-23 2008-02-14 Utilisation d'une solution aqueuse pour le traitement des gaz d'echappement des moteurs diesel Ceased WO2008125745A2 (fr)

Priority Applications (13)

Application Number Priority Date Filing Date Title
UAA200909515A UA97138C2 (ru) 2007-02-23 2008-02-14 Применение водного раствора для обработки выхлопных газов дизельных двигателей
KR1020097019646A KR101520918B1 (ko) 2007-02-23 2008-02-14 디젤 엔진의 배기 가스를 처리하기 위한 수용액의 이용
ES08761883T ES2728802T3 (es) 2007-02-23 2008-02-14 Utilización de una disolución acuosa en los dispositivos SCR para el tratamiento de los gases de escape de los motores diesel y procedimiento SCR
JP2009550300A JP5372781B2 (ja) 2007-02-23 2008-02-14 シアヌール酸類に基づくデポジットの形成を抑える方法
MX2009008927A MX2009008927A (es) 2007-02-23 2008-02-14 Solucion acuosa para el tratamiento de los gases de escape de los motores diesel.
PL08761883T PL2129452T3 (pl) 2007-02-23 2008-02-14 Zastosowanie roztworu wodnego w urządzeniach scr do oczyszczania spalin z silników wysokoprężnych i sposób scr
RU2009134927/05A RU2469775C2 (ru) 2007-02-23 2008-02-14 Водный раствор для обработки выхлопных газов дизельных двигателей
CA2679088A CA2679088C (en) 2007-02-23 2008-02-14 Aqueous solution for the treatment of exhaust gases of diesel engines
DK08761883.1T DK2129452T3 (da) 2007-02-23 2008-02-14 Anvendelse af en vandig opløsning i scr-systemer til behandling af udstødningsgasser fra dieselmotorer og scr-fremgangsmåde
EP08761883.1A EP2129452B1 (fr) 2007-02-23 2008-02-14 Utilisation d'une solution aqueuse dans des dispositifs scr pour le traitment des gaz d'echappement des moteurs diesel et procédé scr
AU2008237807A AU2008237807B2 (en) 2007-02-23 2008-02-14 Use of an aqueous solution for the treatment of diesel engine exhaust gases
BRPI0806791-0A BRPI0806791A2 (pt) 2007-02-23 2008-02-14 solução aquosa para o tratamento de gases de exaustão de motores a diesel
US12/528,069 US7947241B2 (en) 2007-02-23 2008-02-14 Aqueous solution for the treatment of exhaust gases of diesel engines

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0701305 2007-02-23
FR0701305A FR2912932B1 (fr) 2007-02-23 2007-02-23 Solution aqueuse pour traitement des gaz d'echappement des moteurs diesel

Publications (2)

Publication Number Publication Date
WO2008125745A2 true WO2008125745A2 (fr) 2008-10-23
WO2008125745A3 WO2008125745A3 (fr) 2008-12-18

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PCT/FR2008/000186 Ceased WO2008125745A2 (fr) 2007-02-23 2008-02-14 Utilisation d'une solution aqueuse pour le traitement des gaz d'echappement des moteurs diesel

Country Status (24)

Country Link
US (1) US7947241B2 (enExample)
EP (1) EP2129452B1 (enExample)
JP (1) JP5372781B2 (enExample)
KR (1) KR101520918B1 (enExample)
CN (1) CN101636219A (enExample)
AR (1) AR065441A1 (enExample)
AU (1) AU2008237807B2 (enExample)
BR (1) BRPI0806791A2 (enExample)
CA (1) CA2679088C (enExample)
CL (1) CL2008000549A1 (enExample)
DK (1) DK2129452T3 (enExample)
ES (1) ES2728802T3 (enExample)
FR (1) FR2912932B1 (enExample)
HU (1) HUE043483T2 (enExample)
MX (1) MX2009008927A (enExample)
MY (1) MY146393A (enExample)
PL (1) PL2129452T3 (enExample)
PT (1) PT2129452T (enExample)
RU (1) RU2469775C2 (enExample)
TR (1) TR201908112T4 (enExample)
TW (1) TWI426948B (enExample)
UA (1) UA97138C2 (enExample)
WO (1) WO2008125745A2 (enExample)
ZA (1) ZA200906593B (enExample)

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CN102665873A (zh) * 2009-10-16 2012-09-12 普罗帕博尔特公司 尿素溶液的添加剂
US9050560B2 (en) 2008-10-14 2015-06-09 Yara International Asa Method for minimizing the diameter of a urea solution, urea solution and use of a surfactant in urea solution
WO2018178592A1 (fr) 2017-03-31 2018-10-04 Total Marketing Services Composition a base d'uree pour le traitement des gaz d'echappement
US10399035B2 (en) 2015-12-02 2019-09-03 Total Marketing Services Composition made from urea for treating exhaust gases
FR3108529A1 (fr) 2020-03-30 2021-10-01 Total Marketing Services Utilisation d’une composition comprenant un agent réducteur, au moins une paraffine et un composé métallique pour prévenir les dépôts dans les lignes d’échappement comprenant un catalyseur SCR
FR3108527A1 (fr) 2020-03-30 2021-10-01 Total Marketing Services Utilisation d’une composition comprenant un agent réducteur et un composé métallique pour prévenir les dépôts dans les lignes d’échappement comprenant un catalyseur SCR
FR3108526A1 (fr) 2020-03-30 2021-10-01 Total Marketing Services Utilisation d’une composition comprenant un agent réducteur, un tensioactif et un composé métallique pour prévenir les dépôts dans les lignes d’échappement comprenant un catalyseur SCR
WO2022269168A1 (fr) 2021-06-25 2022-12-29 Totalenergies Onetech Méthode de détection de la présence d'un additif dans une composition de traitement des gaz d'échappement
EP4115970A1 (de) 2021-07-05 2023-01-11 TUNAP GmbH & Co. KG Additiv zur reinigung von scr-systemen
WO2023002117A1 (fr) 2021-07-23 2023-01-26 Totalenergies Onetech Composition aqueuse pour le traitement des gaz d'échappement à propriétés anti-mousse améliorées
WO2023118397A1 (en) 2021-12-22 2023-06-29 Xenum Nv/Sa Additive for nox reducing solution
EP4309768A1 (fr) 2022-07-19 2024-01-24 Totalenergies Onetech Composition aqueuse pour le traitement des gaz d'échappement à propriétés améliorées
WO2024047309A1 (fr) 2022-08-30 2024-03-07 Totalenergies Onetech Composition aqueuse pour le traitement des gaz d'échappement à propriétés améliorées
DE112018003064B4 (de) 2017-06-16 2024-07-25 Isuzu Motors Limited Einspritzvorrichtung

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AR065441A1 (es) 2009-06-10
RU2009134927A (ru) 2011-03-27
ZA200906593B (en) 2010-07-28
BRPI0806791A2 (pt) 2011-09-13
CL2008000549A1 (es) 2008-05-30
EP2129452A2 (fr) 2009-12-09
MX2009008927A (es) 2009-11-26
EP2129452B1 (fr) 2019-05-08
UA97138C2 (ru) 2012-01-10
MY146393A (en) 2012-08-15
PT2129452T (pt) 2019-06-12
WO2008125745A3 (fr) 2008-12-18
CA2679088C (en) 2016-01-26
AU2008237807B2 (en) 2012-08-09
CN101636219A (zh) 2010-01-27
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HUE043483T2 (hu) 2019-08-28
JP5372781B2 (ja) 2013-12-18
AU2008237807A1 (en) 2008-10-23
FR2912932B1 (fr) 2011-06-10
US7947241B2 (en) 2011-05-24
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JP2010519025A (ja) 2010-06-03
FR2912932A1 (fr) 2008-08-29
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RU2469775C2 (ru) 2012-12-20
TWI426948B (zh) 2014-02-21

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