ZA200403661B - Diesel fuel compositions - Google Patents
Diesel fuel compositions Download PDFInfo
- Publication number
- ZA200403661B ZA200403661B ZA200403661A ZA200403661A ZA200403661B ZA 200403661 B ZA200403661 B ZA 200403661B ZA 200403661 A ZA200403661 A ZA 200403661A ZA 200403661 A ZA200403661 A ZA 200403661A ZA 200403661 B ZA200403661 B ZA 200403661B
- Authority
- ZA
- South Africa
- Prior art keywords
- fuel composition
- engine
- diesel
- detergent
- fuel
- Prior art date
Links
- 239000000203 mixture Substances 0.000 title claims description 41
- 239000002283 diesel fuel Substances 0.000 title claims description 22
- 239000000446 fuel Substances 0.000 claims description 44
- 239000003599 detergent Substances 0.000 claims description 31
- 239000000654 additive Substances 0.000 claims description 20
- 230000000996 additive effect Effects 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 11
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 8
- 238000002485 combustion reaction Methods 0.000 claims description 7
- 239000002816 fuel additive Substances 0.000 claims description 6
- 239000007795 chemical reaction product Substances 0.000 claims description 4
- 238000009833 condensation Methods 0.000 claims description 3
- 230000005494 condensation Effects 0.000 claims description 3
- 238000011084 recovery Methods 0.000 claims description 3
- 239000000779 smoke Substances 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 2
- 230000006835 compression Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- 238000002347 injection Methods 0.000 description 6
- 239000007924 injection Substances 0.000 description 6
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 4
- 239000005864 Sulphur Substances 0.000 description 4
- 230000001133 acceleration Effects 0.000 description 4
- KZNICNPSHKQLFF-UHFFFAOYSA-N succinimide Chemical class O=C1CCC(=O)N1 KZNICNPSHKQLFF-UHFFFAOYSA-N 0.000 description 4
- 229920002367 Polyisobutene Polymers 0.000 description 3
- -1 amine succinamides Chemical class 0.000 description 2
- 239000006280 diesel fuel additive Substances 0.000 description 2
- 239000002270 dispersing agent Substances 0.000 description 2
- 229920000098 polyolefin Polymers 0.000 description 2
- RREANTFLPGEWEN-MBLPBCRHSA-N 7-[4-[[(3z)-3-[4-amino-5-[(3,4,5-trimethoxyphenyl)methyl]pyrimidin-2-yl]imino-5-fluoro-2-oxoindol-1-yl]methyl]piperazin-1-yl]-1-cyclopropyl-6-fluoro-4-oxoquinoline-3-carboxylic acid Chemical compound COC1=C(OC)C(OC)=CC(CC=2C(=NC(\N=C/3C4=CC(F)=CC=C4N(CN4CCN(CC4)C=4C(=CC=5C(=O)C(C(O)=O)=CN(C=5C=4)C4CC4)F)C\3=O)=NC=2)N)=C1 RREANTFLPGEWEN-MBLPBCRHSA-N 0.000 description 1
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- SNCZNSNPXMPCGN-UHFFFAOYSA-N butanediamide Chemical class NC(=O)CCC(N)=O SNCZNSNPXMPCGN-UHFFFAOYSA-N 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000007859 condensation product Substances 0.000 description 1
- 239000010771 distillate fuel oil Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical class O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920000768 polyamine Polymers 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 229960002317 succinimide Drugs 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
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, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L1/00—Liquid carbonaceous fuels
- C10L1/10—Liquid carbonaceous fuels containing additives
- C10L1/14—Organic compounds
- C10L1/22—Organic compounds containing nitrogen
- C10L1/234—Macromolecular compounds
- C10L1/238—Macromolecular compounds obtained otherwise than by reactions involving only carbon-to-carbon unsaturated bonds
-
- 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, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L1/00—Liquid carbonaceous fuels
- C10L1/10—Liquid carbonaceous fuels containing additives
- C10L1/14—Organic compounds
- C10L1/143—Organic compounds mixtures of organic macromolecular compounds with organic non-macromolecular compounds
-
- 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, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L1/00—Liquid carbonaceous fuels
- C10L1/10—Liquid carbonaceous fuels containing additives
- C10L1/14—Organic compounds
- C10L1/22—Organic compounds containing nitrogen
- C10L1/234—Macromolecular compounds
- C10L1/238—Macromolecular compounds obtained otherwise than by reactions involving only carbon-to-carbon unsaturated bonds
- C10L1/2383—Polyamines or polyimines, or derivatives thereof (poly)amines and imines; derivatives thereof (substituted by a macromolecular group containing 30C)
-
- 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, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L10/00—Use of additives to fuels or fires for particular purposes
- C10L10/02—Use of additives to fuels or fires for particular purposes for reducing smoke development
-
- 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, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L10/00—Use of additives to fuels or fires for particular purposes
- C10L10/08—Use of additives to fuels or fires for particular purposes for improving lubricity; for reducing wear
-
- 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, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L1/00—Liquid carbonaceous fuels
- C10L1/10—Liquid carbonaceous fuels containing additives
- C10L1/14—Organic compounds
- C10L1/16—Hydrocarbons
- C10L1/1616—Hydrocarbons fractions, e.g. lubricants, solvents, naphta, bitumen, tars, terpentine
Landscapes
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Solid Fuels And Fuel-Associated Substances (AREA)
- Testing Of Engines (AREA)
Description
Diesel fuel compositions
The present invention relates to diesel fuel compositions, their preparation and their use in diesel ’ engines, and to the use of additives in diesel fuel compogitions.
Some compression-ignition (diesel) engines appear to suffer power loss after a period of use. The phenomenon is to date poorly understood, but seems particularly to affect direct injection (DI) diesel engines.
The problem may also be more marked when using fuels with a low volumetric energy content, for example low or _ ultra low sulphur fuels or fuels with a relatively low density {such as those containing Fischer-Tropsch methane condensation products). Such fuels are often used where lower vehicle emissions are a priority, or where there are constraints on the nature or level of undegirable fuel components.
It has now surprisingly been found that the use of certain additives in a diesel fuel can reduce and in some cases reverse power loss. A suitably additivated fuel ~~ can therefore be used to help maintain and/or improve engine performance. The additives may in particular be used to enhance performance of an otherwise relatively low energy fuel.
The use of such additives has moreover been found to give other benefits, including reduced smoke and particulate emissions. i
According to a first aspect of the present invention there is provided the use of a detergent-containing fuel additive in a diesel fuel composition, for the purpose of reducing subsequent power loss in a diesel engine into which the fuel composition is introduced. :
According to a second aspect of the present invention there is provided the use of a detergent - containing fuel additive in a diesel fuel composition, for the purpose of reversing a previously incurred power loss in a diesel engine into which the fuel composition is introduced.
In this context, “reducing” includes complete prevention, and vreversing” embraces both complete and partial reversal. “Use” of the additive in a fuel composition means incorporating the additive into the fuel composition, conveniently before the composition is introduced into the engine.
Power loss in the engine may be manifested by, for example, a reduction in tractive effort and/or acceleration rate in a vehicle being driven by the engine. Conversely, reversal of a previously incurred power loss will mean an increase in engine power output, which may be manifested by an increase in vehicle tractive effort and/or a reduction in acceleration times.
A reduction in subsequent power loss will inhibit the reduction in tractive effort and/or acceleration rate which would otherwise have been expected, for instance extrapolating from previous performance, in particular compared to that which would have occurred had the engine been run on an unadditivated fuel or a fuel containing less, or no, detergent. In accordance with the present invention, therefore, a detergent-containing additive may be incorporated into a fuel composition with the aim of achieving these indirect effects. :
Co The present invention is particularly applicable where the fuel composition is used or intended to be used in a direct injection diesel engine, for example of the rotary pump, electronic unit injector or common rail . type. It may be of particular value for rotary pump engines, in which power joss can be especially marked, and in other diesel engines which rely on mechanical actuation of the fuel injectors and/or a low pressure pilot injection system.
The diesel fuel composition may be of an otherwise conventional type, typically comprising liquid hydrocarbon middle distillate fuel oils. However it may in particular comprise a low or ultra low sulphur content fuel, for instance containing at most 500 ppaw (parts per million by weight) sulphur, preferably less than 300 ppmw, more preferably less than 250 ppmw, still more preferably no more than 100 ppmw, most preferably no more than 60 or 50 or even 10 ppmw. It may be, or contain a proportion (for instance, 10 % v/v or more) of, reaction products of a Fischer-Tropsch methane condensation process such as the process known as. Shell Middle
Distillate Synthesis (SMDS) -— such reaction products suitably have boiling points within the typical diesel fuel range (between about 150 and 370 °C), a density of between about 0.76 and 0.79 g/cm® at 15°C, a cetane number greater than 72.7 (typically between about 75 and 82), a sulphur content of less than 5 ppmw, a viscosity between about 2.9 and 3.7 centistokes (mm2/s) at 40 °C and an aromatics content of no greater than 1 % w/w.
The diesel fuel composition may comprise a relatively low density fuel, such as a fuel having a density of less than 0.840 g/cm3, preferably less than 0.835 g/cm3, at 15°C. In fuels of these types, the detergent -containing additive may be used for the purpose of compensating for the fuel’s inherently lower energy content. In other words, the additive may be used oo generally to increase the power provided by a fuel composition during subsequent use.
The additive must contain a detergent, by which is meant an agent (suitably a surfactant) which can act to remove, and/or to prevent the build up of, combustion related deposits within the engine, in particular in the } fuel injection system such as in the injector nozzles.
Such materials are sometimes referred to as dispersant additives. Although we do not wish to be bound by this theory, the build up of combustion related deposits is now believed to be at least partially responsible for power loss in direct injection diesel engines.
The detergent is preferably included in the fuel composition at a concentration sufficient to recover, at least partially, power lost in the engine during a period of running using another fuel (typically unadditivated, or containing only low levels of, if any, detergent).
This is generally a concentration sufficient to remove, at least partially, combustion related deposits which have built up in the engine's fuel injection system, in particular in the injector nozzles. It will depend on the nature of the detergent, but preferred values lie in the range 100 to 500 ppmw active matter detergent based on the overall additivated fuel composition, more preferably 150 to 300 ppmw. In the case of most commercially available detergent-containing diesel fuel additives, this will mean incorporating the additive at ~ 30 levels higher than the standard recommended single treat rate, for example between 1.2 and 3 times, preferably between 1.5 and 2.5 times, such as about twice the standard single treat rate.
Lower detergent levels (for example, corresponding to between 0.5 and 1.2 times, preferably the same as, the standard single treat rate) may be used to reduce, ideally to prevent, further power 1osses as opposed to reversing previously incurred losses. preferably the quantity of detergent -containing additive used is sufficient to recover at least 25 %, more preferably at least 50 % or 75 $ or 90 % or 95 %, most preferably 100 %, of power lost in the engine during a previous period of use with a different fuel " composition, when the engine is subsequently run on the detergent-containing fuel composition for a comparable . number of miles and under comparable driving conditions. © Even more preferably, the amount of detergent present is sufficient to provide the gtated recovery of power (which may equate to a corresponding reduction in combustion related deposits) when the engine is subsequently run on the detergent-containing fuel composition for 75 %, yet . more preferably 50 & or even 40 % or 30 %, of the number of miles covered on the previous fuel, again under ‘ comparable driving conditions. The previous fuel may for . instance be an unadditivated diesel fuel composition, .or one containing no, or no more than 50 or even 20 ppmw, active matter detergent. .
Alternatively, the detergent -containing additive may be uged in a quantity sufficient to reduce by at least 25 %, preferably at least 50 %, more preferably at least 75 %, most preferably at least 90 %, such as by 100 %, the amount of power loss incurred (which may equate to a corresponding increase in combustion related deposits) } when running the engine on the fuel composition, as compared to that incurred when running the engine, under comparable driving conditions, on an unadditivated fuel compogition or one containing no, or no more than 50 or 20 ppmw, active matter detergent.
As explained above, engine power may be assessed with reference to, for example, vehicle tractive effort and/or acceleration times.
The degree of power recovery achievable by using, in accordance with the invention, a detergent -containing additive may conveniently be assessed using a method according to the seventh aspect of the invention, described below. " Detergent-containing diesel fuel additives are known and commercially available, for instance from Infineum (eg, F7661 and F7685) and Octel (eg, OMA 4130D). In the past such additives have been added to diesel fuels at relatively low levels (their “standard” treat rates providing typically less than 100 ppmw active matter detergent in the overall additivated fuel composition) "intended merely to reduce or slow the build up of engine deposits. The additives have not to our knowledge been used for the purpose of increasing engine power, and in particular not at levels high enough to reverse previously incurred power loss. That they are capable of achieving this is especially surprising.
Examples of detergents guitable for use in fuel additives for the present purpose include polyolefin . substituted succinimides or succinamides of polyamines, for instance polyisobutylene succinimides or polyisobutylene amine succinamides, aliphatic amines, ‘Mannich bases or amines and polyolefin (eg, polyisobutylene) maleic anhydrides. Succinimide dispersant additives are described for example in
GB-A-960493, EP-A-0147240, EP-A-0482253, EP-A-0613938, : 'EP-A-0557561 and WO-A-98/42808. Particularly preferred
Claims (10)
1. A diesel fuel composition which includes a major proportion of a fuel for an internal combustion engine of the compression ignition type, and a minor proportion of a detergent-containing additive, wherein the active matter detergent concentration in the composition is between 100 and 500 ppmw.
2. A diesel fuel composition according to claim 1, which contains reaction products of a Fischer-Tropsch methane condensation process.
3. Use of a detergent-containing fuel additive in a diesel fuel composition, for the purpose of reducing subsequent power loss in a diesel engine into which the fuel composition is introduced.
4. Use of a detergent-containing fuel additive in a diesel fuel composition, for the purpose of reversing a previously incurred power loss in a diesel engine into which the fuel composition is introduced.
5. Use of a detergent-containing fuel additive in a diesel fuel composition, for the purpose of reducing smoke and/or particulate emissions in a diesel engine into which the fuel composition is introduced.
6. Use according to claim 3, 4 or 5, wherein the fuel composition contains reaction products of a Fischer- Tropsch methane condensation process.
7. A method of operating a diesel engine, and/or a vehicle which is driven by a diesel engine, which method involves introducing into the combustion chambers of the engine a diesel fuel composition according to claim 1 or
8. A process for the preparation of a diesel fuel composition according to claim 1 or 2, which process involves admixing a major proportion of a diesel engine fuel with a minor proportion of a detergent-containing additive, the minor proportion being sufficient to give an active matter detergent concentration in the fuel composition of between 100 and 500 ppmw.
9. A method for assessing the performance of a candidate diesel fuel composition, comprising the steps | of: 1) measuring power output for a diesel engine running on a standard diesel fuel composition, which standard fuel composition contains less than 50 ppmw active matter detergent; 2) subjecting the engine to a first driving cycle by running it for a first number of miles on the standard fuel composition; 3) measuring engine power after the first driving cycle; 4) calculating the reduction in engine power during the first driving cycle; 5) provided that significant power loss is observed during the first driving cycle, subjecting the engine to a second driving cycle by running it for a second number of miles on the candidate diesel fuel composition; 6) measuring engine power after the second driving cycle; 7) calculating the reduction in engine power (if any) during the second driving cycle; and 8) if applicable, calculating the extent of engine power recovery during the second driving cycle.
10. A method according to claim 3, wherein engine smoke and/or particulate emissions are also measured and compared before and after the first and second driving cycles.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GBGB0127953.8A GB0127953D0 (en) | 2001-11-21 | 2001-11-21 | Diesel fuel compositions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ZA200403661B true ZA200403661B (en) | 2007-06-27 |
Family
ID=9926215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ZA200403661A ZA200403661B (en) | 2001-11-21 | 2004-05-13 | Diesel fuel compositions |
Country Status (13)
| Country | Link |
|---|---|
| US (1) | US20030159337A1 (en) |
| EP (1) | EP1448751A2 (en) |
| JP (1) | JP2005509730A (en) |
| AR (1) | AR037574A1 (en) |
| AU (1) | AU2002352101A1 (en) |
| BR (1) | BR0214326A (en) |
| CA (1) | CA2467096A1 (en) |
| GB (1) | GB0127953D0 (en) |
| HU (1) | HUP0402356A2 (en) |
| NO (1) | NO20042568L (en) |
| PL (1) | PL197965B1 (en) |
| WO (1) | WO2003044134A2 (en) |
| ZA (1) | ZA200403661B (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040144690A1 (en) * | 2002-12-20 | 2004-07-29 | Lloyd David Hugh | Diesel fuel compositions |
| EP1705234A1 (en) * | 2005-03-24 | 2006-09-27 | Basf Aktiengesellschaft | Use of detergent additives to inhibit or reduce the formation of injection system deposits in direct injection diesel engines |
| EP2006360B1 (en) | 2006-03-31 | 2013-05-22 | JX Nippon Oil & Energy Corporation | Method of producing a gas oil composition |
| JP4829660B2 (en) | 2006-03-31 | 2011-12-07 | Ｊｘ日鉱日石エネルギー株式会社 | Fuel composition |
| JP4863772B2 (en) * | 2006-05-31 | 2012-01-25 | Ｊｘ日鉱日石エネルギー株式会社 | Light oil composition |
| EP1884556A3 (en) * | 2006-08-04 | 2011-09-14 | Infineum International Limited | Diesel fuel compositions containing metallic species and detergent additives |
| AU2008342674B2 (en) * | 2007-12-28 | 2012-09-20 | Shell Internationale Research Maatschappij B.V. | Use of a viscosity increasing component in a diesel fuel |
| CA2719258A1 (en) * | 2008-03-26 | 2009-10-01 | Shell Internationale Research Maatschappij B.V. | Automotive fuel compositions |
| US8177865B2 (en) | 2009-03-18 | 2012-05-15 | Shell Oil Company | High power diesel fuel compositions comprising metal carboxylate and method for increasing maximum power output of diesel engines using metal carboxylate |
| US9239000B2 (en) | 2010-05-25 | 2016-01-19 | The Lubrizol Corporation | Method to provide power gain in an engine |
| US9249769B1 (en) * | 2015-03-24 | 2016-02-02 | Afton Chemical Corporation | Fuel additives for treating internal deposits of fuel injectors |
| EP3887489A1 (en) | 2018-11-26 | 2021-10-06 | Shell Internationale Research Maatschappij B.V. | Fuel compositions |
| CN113227331A (en) * | 2019-01-22 | 2021-08-06 | A·V·阿里斯托夫 | Fuel composition of diesel fuel |
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| WO1999021943A1 (en) * | 1997-10-28 | 1999-05-06 | University Of Kansas Center For Research, Inc. | Blended compression-ignition fuel containing light synthetic crude and blending stock |
| USH1849H (en) * | 1998-11-20 | 2000-05-02 | Sasol Technology (Proprietary) Limited | Fischer-Tropsch products as fuel for fuel cells |
| CA2406287C (en) * | 2000-05-02 | 2010-04-06 | Exxonmobil Research And Engineering Company | Wide cut fischer-tropsch diesel fuels |
| US6565617B2 (en) * | 2000-08-24 | 2003-05-20 | Shell Oil Company | Gasoline composition |
| US6783561B2 (en) * | 2000-12-21 | 2004-08-31 | The University Of Chicago | Method to improve lubricity of low-sulfur diesel and gasoline fuels |
-
2001
- 2001-11-21 GB GBGB0127953.8A patent/GB0127953D0/en not_active Ceased
-
2002
- 2002-11-20 US US10/300,346 patent/US20030159337A1/en not_active Abandoned
- 2002-11-21 AU AU2002352101A patent/AU2002352101A1/en not_active Abandoned
- 2002-11-21 HU HU0402356A patent/HUP0402356A2/en unknown
- 2002-11-21 JP JP2003545760A patent/JP2005509730A/en active Pending
- 2002-11-21 BR BR0214326-7A patent/BR0214326A/en not_active IP Right Cessation
- 2002-11-21 EP EP02787776A patent/EP1448751A2/en not_active Ceased
- 2002-11-21 WO PCT/EP2002/013143 patent/WO2003044134A2/en not_active Application Discontinuation
- 2002-11-21 CA CA002467096A patent/CA2467096A1/en not_active Abandoned
- 2002-11-21 AR ARP020104462A patent/AR037574A1/en unknown
- 2002-11-21 PL PL369873A patent/PL197965B1/en not_active IP Right Cessation
-
2004
- 2004-05-13 ZA ZA200403661A patent/ZA200403661B/en unknown
- 2004-06-18 NO NO20042568A patent/NO20042568L/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| CA2467096A1 (en) | 2003-05-30 |
| PL369873A1 (en) | 2005-05-02 |
| JP2005509730A (en) | 2005-04-14 |
| NO20042568L (en) | 2004-08-18 |
| AU2002352101A1 (en) | 2003-06-10 |
| AR037574A1 (en) | 2004-11-17 |
| GB0127953D0 (en) | 2002-01-16 |
| BR0214326A (en) | 2004-11-03 |
| WO2003044134A2 (en) | 2003-05-30 |
| HUP0402356A2 (en) | 2005-02-28 |
| WO2003044134A3 (en) | 2003-08-07 |
| EP1448751A2 (en) | 2004-08-25 |
| WO2003044134A8 (en) | 2003-12-04 |
| US20030159337A1 (en) | 2003-08-28 |
| PL197965B1 (en) | 2008-05-30 |
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