EP1341996A2 - Procede permettant de reduire les emissions de moteurs diesel a injection a galerie commune haute pression - Google Patents

Procede permettant de reduire les emissions de moteurs diesel a injection a galerie commune haute pression

Info

Publication number
EP1341996A2
EP1341996A2 EP01985995A EP01985995A EP1341996A2 EP 1341996 A2 EP1341996 A2 EP 1341996A2 EP 01985995 A EP01985995 A EP 01985995A EP 01985995 A EP01985995 A EP 01985995A EP 1341996 A2 EP1341996 A2 EP 1341996A2
Authority
EP
European Patent Office
Prior art keywords
less
fuel
common rail
density
high pressure
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.)
Withdrawn
Application number
EP01985995A
Other languages
German (de)
English (en)
Other versions
EP1341996A4 (fr
Inventor
Alan Mark Schilowitz
David John Richeard
John Richard White Shutters BATEMAN
Nicholas Mann
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.)
ExxonMobil Technology and Engineering Co
Original Assignee
ExxonMobil Research and Engineering 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 ExxonMobil Research and Engineering Co filed Critical ExxonMobil Research and Engineering Co
Publication of EP1341996A2 publication Critical patent/EP1341996A2/fr
Publication of EP1341996A4 publication Critical patent/EP1341996A4/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G OR C10K; LIQUIFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS
    • C10L1/00—Liquid carbonaceous fuels
    • C10L1/04—Liquid carbonaceous fuels essentially based on blends of hydrocarbons
    • C10L1/08—Liquid carbonaceous fuels essentially based on blends of hydrocarbons for compression ignition
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition

Definitions

  • This invention relates to the operation of compression ignition engines, i.e., diesel engines, utilizing high pressure common rail fuel systems and to the fuels used to run such engines.
  • the fuel used is a distillate fuel which is higher viscosity and density than most other transportation distillate fuels, e.g., gasoline, jet fuel, etc.
  • a drawback of using such fuel in such conventional fuel system engines can be high smoke production.
  • low density fuels are environmentally desirable. These fuels are also often associated with their lower aromatic content, lower sulfur content, lower T90 and lower content of polynuclear aromatic compounds. Sulfur and aromatics are typically reduced by incorporating hydrogen into the fuel molecules (i.e., raising the H/C ratio). This can have the effect of reducing fuel density and volumetric energy content. In general, when sulfur and aromatics are reduced density goes down, the fuel burns cleaner and the exhaust is more effectively cleaned by exhaust after treatment systems like catalytic converters and particle traps. It is also generally acknowledged, however, that the use of low density diesel fuels in conventional fuel system diesels reduces engine output and degrades vehicle performance. This is due to the lower volumetric energy content of low density fuels.
  • Figure 1 reports the emission levels of hydrocarbon, NO x , particulate matter, hydrocarbon + NO x and CO produced (means of three runs) by a common rail diesel engine run on four fuels of different density and viscosity.
  • low density fuel characterized as a fuel having density of about 0.83 g/cc or less, preferably about 0.825 g/cc or less, more preferably about 0.82 g/cc or less, a kinematic viscosity of about 3 cSt or less at 40°C, preferably about 2.6 cSt or less at 40°C, more preferably about 2.1 cSt or less at 40°C.
  • Diesel fuel refers to an essentially hydrocarbon fuel which can contain various amounts of oxygen, sulfur, nitrogen and various trace elements, with a distillation curve falling in the range of about 140°C to 400°C.
  • the fuel also has a sulfur content of about 0.05 wt% or less, more preferably about 0.04 wt% or less, still more preferably about 0.03 wt% or less.
  • Sulfur can be measured by x-ray fluorescence and ultraviolet fluorescence.
  • One particularly effective method for measuring low levels of distillate fuel sulfurs is ASTM D-5453.
  • the fuel may also contain such other typical diesel fuel additives as cetane improvers pour point depressants/cold flow improvers, oxygenates (such as alcohols, ethers, esters, glycols, etc.), wax anti-settling additives, diesel fuel stabihzers, antioxidants, combustion improvers, detergents, demulsifiers, dehazers, lubricity additives, antifoamants, antistatic agents, conductivity improvers, corrosion inhibitors, drag reducing agents, reodorants, dyes, markers and the like.
  • typical diesel fuel additives as cetane improvers pour point depressants/cold flow improvers, oxygenates (such as alcohols, ethers, esters, glycols, etc.), wax anti-settling additives, diesel fuel stabihzers, antioxidants, combustion improvers, detergents, demulsifiers, dehazers, lubricity additives, antifoamants, antistatic agents, conductivity improvers, corrosion inhibitors, drag reducing agents,
  • high pressure common rail fuel system compression ignition engines can be operated with no performance debit and with a significant reduction in emissions by using as the fuel a low density diesel fuel characterized as a fuel having a density of about 0.83 g/cc or less, a viscosity of about 3 cSt or less at 40°C and preferably a sulfur content of about 0.05 wt% or less.
  • the UK low sulfur ADO produced the highest emissions. Emissions of hydrocarbons, particulate matter and CO were all reduced by switching to lower density, lower viscosity fuels.
  • Vehicle performance was measured by doing wide open throttle acceleration in fifth gear. Acceleration time form 50 to 120 km/hour was measured. Despite the difference in the fuels with respect to densities, there was no significant difference in acceleration times as would be expected in a conventional diesel engine.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)

Abstract

L'invention concerne la réduction des émissions de moteurs à injection pneumatique à système d'alimentation à galerie commune haute pression grâce à l'utilisation dans lesdits moteurs d'un combustible diesel se caractérisant par un contenu en soufre d'environ 0,05 % en poids ou moins, une densité d'environ 0,83 ou moins et une viscosité d'environ 3 cSt ou moins à 40 °C.
EP01985995A 2000-11-21 2001-11-06 Procede permettant de reduire les emissions de moteurs diesel a injection a galerie commune haute pression Withdrawn EP1341996A4 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US25244100P 2000-11-21 2000-11-21
US252441P 2000-11-21
US09/978,510 US20020151756A1 (en) 2000-11-21 2001-10-16 Method for reducing emissions from high pressure common rail fuel injection diesel engines
US978510 2001-10-16
PCT/US2001/043691 WO2002042619A2 (fr) 2000-11-21 2001-11-06 Procede permettant de reduire les emissions de moteurs diesel a injection a galerie commune haute pression

Publications (2)

Publication Number Publication Date
EP1341996A2 true EP1341996A2 (fr) 2003-09-10
EP1341996A4 EP1341996A4 (fr) 2012-02-29

Family

ID=26942319

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01985995A Withdrawn EP1341996A4 (fr) 2000-11-21 2001-11-06 Procede permettant de reduire les emissions de moteurs diesel a injection a galerie commune haute pression

Country Status (6)

Country Link
US (1) US20020151756A1 (fr)
EP (1) EP1341996A4 (fr)
JP (1) JP2004514746A (fr)
AU (1) AU2002236466A1 (fr)
CA (1) CA2428886A1 (fr)
WO (1) WO2002042619A2 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AR047565A1 (es) * 2003-12-01 2006-01-25 Shell Int Research Aumento de potencia t de rendimiento en terminos de aceleracion de composiciones de combustible diesel
US7402186B2 (en) * 2004-02-09 2008-07-22 The Lubrizol Corporation Fuel composition containing a medium substantially free of sulphur and process thereof
AR059751A1 (es) * 2006-03-10 2008-04-23 Shell Int Research Composiciones de combustible diesel
RU2495916C2 (ru) * 2007-12-28 2013-10-20 Шелл Интернэшнл Рисерч Маатсхаппий Б.В. Применение повышающего вязкость компонента в дизельном топливе
WO2009118302A2 (fr) * 2008-03-26 2009-10-01 Shell Internationale Research Maatschappij B.V. Compositions de carburant pour automobile
BR112021009273A2 (pt) 2018-11-26 2021-08-10 Shell Internationale Research Maatschappij B.V. composição de combustível, uso de um aditivo de melhoria de índice de viscosidade em uma composição de combustível automotivo, e, método para operar um motor de combustão interna e/ou um veículo que é movido por tal motor

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69415512T2 (de) * 1993-03-05 1999-05-20 Mobil Oil Corp., Fairfax, Va. Dieselbrennstoff mit niedriger emission
US6045120A (en) * 1998-01-13 2000-04-04 Cummins Engine Company, Inc. Flow balanced spill control valve

Also Published As

Publication number Publication date
CA2428886A1 (fr) 2002-05-30
JP2004514746A (ja) 2004-05-20
AU2002236466A1 (en) 2002-06-03
EP1341996A4 (fr) 2012-02-29
WO2002042619A2 (fr) 2002-05-30
US20020151756A1 (en) 2002-10-17
WO2002042619A3 (fr) 2002-07-25

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Ipc: C10L 1/08 20060101ALI20120117BHEP

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