EP1981954A1 - Verfahren zur verringerung der emissionen von dieselmotoren - Google Patents
Verfahren zur verringerung der emissionen von dieselmotorenInfo
- Publication number
- EP1981954A1 EP1981954A1 EP06780596A EP06780596A EP1981954A1 EP 1981954 A1 EP1981954 A1 EP 1981954A1 EP 06780596 A EP06780596 A EP 06780596A EP 06780596 A EP06780596 A EP 06780596A EP 1981954 A1 EP1981954 A1 EP 1981954A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- hydro
- engines
- procedure according
- water
- procedure
- 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.)
- Granted
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, 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
- C10L1/32—Liquid carbonaceous fuels consisting of coal-oil suspensions or aqueous emulsions or oil emulsions
- C10L1/328—Oil emulsions containing water or any other hydrophilic phase
-
- 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
-
- 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
- C10L1/00—Liquid carbonaceous fuels
- C10L1/10—Liquid carbonaceous fuels containing additives
- C10L1/12—Inorganic compounds
- C10L1/1233—Inorganic compounds oxygen containing compounds, e.g. oxides, hydroxides, acids and salts thereof
- C10L1/125—Inorganic compounds oxygen containing compounds, e.g. oxides, hydroxides, acids and salts thereof water
-
- 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
- C10L1/18—Organic compounds containing oxygen
- C10L1/182—Organic compounds containing oxygen containing hydroxy groups; Salts thereof
- C10L1/1822—Organic compounds containing oxygen containing hydroxy groups; Salts thereof hydroxy group directly attached to (cyclo)aliphatic carbon atoms
- C10L1/1824—Organic compounds containing oxygen containing hydroxy groups; Salts thereof hydroxy group directly attached to (cyclo)aliphatic carbon atoms mono-hydroxy
Definitions
- the present invention relates to a procedure for reducing the emissions, in particular NO x and particulate, of diesel cycle engines.
- a solution suggested by the prior art consists in the addition of water to the fuel. This solution has proved to be beneficial as it reduces the harmful components.
- a typical example of technology which uses the addition of water is represented by the so-called "white gas oil", an emulsion of water (about 10%) in gas oil, produced by the addition of suitable emulsiflers.
- the beneficial effect of water can be attributed to the reduced temperature in the combustion chamber, which lowers the NO x level, and also a better combustion due to the pulverization of gas oil into droplets caused by the explosion of the water drops contained in the emulsion, during the compression phase.
- This technology however, has the disadvantage that said emulsion has a low time stability, in particular with variations in the environmental conditions.
- alcohols having a low molecular weight for example methanol and ethanol
- Otto cycle driven ignition engines
- gas oil engines diesel cycle
- a low cetane number corresponds to a high octane number.
- the present invention relates to a procedure for reducing the emissions of diesel engines, characterized in that said diesel- engines are fed by means of two separate feedings, a first feeding consisting of gas oil and a second feeding consisting of a hydro-alcoholic blend comprising water and alcohols from C 1 to C 4 .
- Diesel engines which can be used in the procedure of the present invention include, as an example, engines for light road transport (cars), engines for heavy road transport (lorries, buses, tractors) motors for electricity generators.
- the term diesel engine means any kind of diesel cycle engine, preferably turbojet and turbo-diesel engines.
- “Hydro-alcoholic blend” means an aqueous solution Of C 1 - C 4 alcohols, preferably Ci - C 2 , even more preferably C 1 . It is essential, however, for the alcohols to be present in an amount and with a number of carbon atoms such as to assure the formation of a perfectly homogeneous and limpid aqueous solution. Therefore the ratio alcohols C 3 -C 4 / alcohols Ci-C 2 is usually low due to the scarce water solubility of the C 3 -C 4 alcohols.
- the water content of these hydro-alcoholic blends can vary from 5 to 95% by volume. Preferred compositions are within the range of 40 to 60% of water.
- a denaturing agent can be added, completely miscible with the above hydro-alcoholic solutions, said denaturing agent not being easily removable from the hydro-alcoholic solutions and having such characteristics as to avoid the improper use of the above blends.
- said denaturing agents are ethers (for example MTBE, i.e. methyl tert-butyl ether, ETBE 5 i.e. ethyl tert-butyl ether) and higher alcohols, for example C 4 -C 5 alcohols.
- the denaturing agent cannot be a C 4 alcohol.
- the addition of the denaturing agent can be effected within a range of 1 to 6% by volume.
- a suitable dye can be added still within the scope of the invention.
- the present invention requires the separate feeding of gas oil and the hydro-alcoholic blend.
- the volumetric ratio between the hydro-alcoholic blend and the gas oil ranges from 2/98 to 80/20, preferably 5/95 to 75/25. The above ratio mainly depends on the type of engine and regime at which it runs.
- gas oil for road vehicles As far as gas oil for road vehicles is concerned, its characteristics and properties are well-known to experts in the field. We would like to indicate, in particular, a typical evaporation curve of gas oil for road vehicles: at 150°C, 2% by volume evaporates, at 250 0 C, 64.5% by volume, at 350°C, 85% by volume, at 370°C, 95% by volume. Other important characteristics of the gas oil for road vehicles are density at 15°C (from 820 to 845 Kg/m 3 ) and viscosity at 40°C (from 2.00 to 4.5 mm 2 /sec).
- the feeding to the diesel engine can be effected by means of the usual means suitable for this purpose, for example by injectors.
- the only restriction consists of the material of the means which feeds the hydro-alcoholic solution; this in fact must be resistant to water and also to alcohols.
- a typical commercial injector which can be used for the hydro-alcoholic solutions of the present invention is known as Aquamist ® of E.R.L. Ltd.
- the procedure of the present invention in addition to allowing a reduction in the NO x and particulate (PM), also has the advantage of increasing the engine power.
- the reduction in emissions can be mainly ascribed to the presence of water, whose environmental advantages in diesel engines are already described in the known art.
- the increase in power is mainly due to the introduction of alcohols into diesel engines.
- the alcohol acts as a complement to gas oil for the purpose of improving the power yield.
- the procedure of the present invention does not have the drawbacks mentioned above for "white gas oil".
- the procedure of the present invention does not, obviously, have storage problems typical of gas oil/water emulsions, due to its nature.
- the system of the present invention does not require the presence of surface-active agents (necessary for preparing emulsions of white gas oil) which could create problems in gas oil engines.
- the above engine is fed, for comparative purposes, with commercial gas oil only, of the EN 590 Agip Bludiesel type and, according to the present invention, with the same gas oil and with a second feeding consisting of a hydro-alcoholic blend consisting of:
- the test cycle ECE 15 consists in driving the vehicle in a simulated run on a dynamom- etric bench on suitably calibrated rolls in order to consider the inertia and passive resistances according to the Extra-Urban Cycle EUDC. Results of the ECE 15 test
- Tables Ia-Ic show the properties and the compositions of the mixture used in these tests (48.5% methanol, 1.5% iso-butanol, 50% demineralized water) at three different temperatures, i.e. 15°C (minimum operating temperature), 32°C (maximum operating temperature) and 78°C (flash point temperature).
- this mixture is flameproof at 15 0 C and 32 0 C. Furthermore the vaporization of said mixture begins at 78°C.
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)
- Liquid Carbonaceous Fuels (AREA)
- Control Of Electric Motors In General (AREA)
- Control Of Multiple Motors (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITMI20060188 ITMI20060188A1 (it) | 2006-02-03 | 2006-02-03 | Procedimento per ridurre le emissioni di motorizzazioni diesel |
PCT/IT2006/000566 WO2007088564A1 (en) | 2006-02-03 | 2006-07-25 | Procedure for reducing the emissions of diesel engines |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1981954A1 true EP1981954A1 (de) | 2008-10-22 |
EP1981954B1 EP1981954B1 (de) | 2013-05-29 |
Family
ID=37396484
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06780596.0A Active EP1981954B1 (de) | 2006-02-03 | 2006-07-25 | Vervendung zur verringerung der emissionen von dieselmotoren |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1981954B1 (de) |
IT (1) | ITMI20060188A1 (de) |
WO (1) | WO2007088564A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9447724B2 (en) | 2010-11-25 | 2016-09-20 | Gane Energy & Resources Pty Ltd. | Fuel and process for powering a compression ignition engine |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2627396B2 (ja) * | 1994-03-15 | 1997-07-02 | 敬 山口 | 自動車用ディーゼルエンジンの水、メタノール吸入装置 |
AU761457B2 (en) * | 1998-01-12 | 2003-06-05 | Deborah Wenzel | An additive composition also used as a fuel composition comprising water soluble alcohols |
GB2384525A (en) * | 2002-01-15 | 2003-07-30 | William May Stott | Adding water, eg steam, to the charge of a reciprocating piston i.c. engine to reduce emissions of particulate matter (PM) and NOx |
-
2006
- 2006-02-03 IT ITMI20060188 patent/ITMI20060188A1/it unknown
- 2006-07-25 EP EP06780596.0A patent/EP1981954B1/de active Active
- 2006-07-25 WO PCT/IT2006/000566 patent/WO2007088564A1/en active Application Filing
Non-Patent Citations (1)
Title |
---|
See references of WO2007088564A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP1981954B1 (de) | 2013-05-29 |
ITMI20060188A1 (it) | 2007-08-04 |
WO2007088564A1 (en) | 2007-08-09 |
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