CN1279149C - Method of oxidizing soot and reducing soot accumulation in adiesel fuel combustion after treatment system - Google Patents
Method of oxidizing soot and reducing soot accumulation in adiesel fuel combustion after treatment system Download PDFInfo
- Publication number
- CN1279149C CN1279149C CNB2003101014357A CN200310101435A CN1279149C CN 1279149 C CN1279149 C CN 1279149C CN B2003101014357 A CNB2003101014357 A CN B2003101014357A CN 200310101435 A CN200310101435 A CN 200310101435A CN 1279149 C CN1279149 C CN 1279149C
- Authority
- CN
- China
- Prior art keywords
- fuel
- diesel
- firing system
- compound
- additive
- 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.)
- Expired - Fee Related
Links
Images
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
- C10L1/30—Organic compounds compounds not mentioned before (complexes)
- C10L1/305—Organic compounds compounds not mentioned before (complexes) organo-metallic compounds (containing a metal to carbon bond)
-
- 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
-
- 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
- C10L1/1814—Chelates
-
- 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
- C10L1/188—Carboxylic acids; metal salts thereof
-
- 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
- C10L1/30—Organic compounds compounds not mentioned before (complexes)
- C10L1/301—Organic compounds compounds not mentioned before (complexes) derived from metals
-
- 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
- C10L10/04—Use of additives to fuels or fires for particular purposes for minimising corrosion or incrustation
-
- 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
- C10L10/06—Use of additives to fuels or fires for particular purposes for facilitating soot removal
Landscapes
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Health & Medical Sciences (AREA)
- Emergency Medicine (AREA)
- Inorganic Chemistry (AREA)
- Liquid Carbonaceous Fuels (AREA)
- Exhaust Gas After Treatment (AREA)
- Solid Fuels And Fuel-Associated Substances (AREA)
- Processes For Solid Components From Exhaust (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
A method of reducing the negative effects of accumulation of ash in a diesel fuel combustion system includes supplying a diesel fuel having an additive that includes a manganese compound to a diesel fuel combustion system. The combustion system includes a catalyzed diesel particulate filter or, alternatively, a continuously regenerating technology diesel particulate filter. The fuel is then combusted in the combustion system to product at least one byproduct that includes the manganese compound. The manganese compound is supplied in an amount effective to complex with the combustion byproduct.
Description
Technical field
The present invention relates to fuel dope in protection with improve application aspect the fire emission after-treatment system.Described additive comprises one or more manganic compounds.The part that this additive can be acted as a fuel is introduced in the combustion chamber, also it can be sprayed in the fire emission separately or with fuel.This additive will be strengthened the function of after-treatment system, and these after-treatment systems for example comprise the diesel particulate filter that catalysis and cyclic regeneration technology are used in combination.
Background technology
In any industry of automotive industry or other burning hydrocarbon containing fuels, be well known that, adopt various strategies to reduce the discharging of offgas duct (or smoke pipe).For example, in the engine of plug ignition, the method for the most frequently used minimizing discharging diffusion is strictly control air fuel ratio and ignition time.Ignition time specific efficiency vertex is postponed, can reduce HC and NO
XQuantity discharged, but retarding ignition will increase the discharging of CO and HC excessively.The raising engine speed helps reducing the discharging of HC, but NO
XDischarging along with the load increase and increase.The raising coolant temperature helps reducing the discharging of HC, but this causes NO
XQuantity discharged increase.
Also known, the effluent streams of handling combustion processes by the discharge aftertreatment helps reducing discharging.Comprising a variety of chemical substances and compound and mixture in these effluent streams, some of them can be transformed into a kind of other compound or mixture or other chemical substance by means of a kind of catalyzer.For example, a kind of being well known that used ternary catalyzing unit and poor NO
XGrabber provides the discharge aftertreatment.Also more known other catalysis and on-catalytic method.
Thermal reactor is non-catalytic unit, and it utilizes the reaction of a large amount of homogeneous gas to come oxidation CO and HC.Yet, in thermal reactor, a large amount of NO
XBe not affected.By improving exhaust temperature (for example by means of reducing compression ratio or retarding ignition time) or strengthening reaction by the combustibility (rich mixture) that improves discharge.For the typical temperature of top efficiency is 1500 °F (800 ℃) or higher.Usually, when the engine rich running, discharge one of percentage CO, air is sprayed in the discharge.Seldom use thermal reactor, because its required setting has greatly reduced fuel efficiency.
Catalysis system not only can oxidation CO and HC, and can reductive NO
XYet, NO
XProcessing need a kind of reductive environment, that is, and must be than denseer from chemically saying correct air-fuel ratio.Can use two convertors, in subordinate phase, in this convertor, inject air, come oxidation CO and HC.Though this method has reduced the economy of fuel effectively.
Single-stage and ternary catalyzing unit (TWC ' s) be widely used, but they need split-hair fuel control ability effectively.Have only when the time near stoichiometric(al), just high for the efficient of three kinds of all pollutents, can cause hydrocarbon polymer and carbon monoxide or NO to the departing from all of any side of stoichiometric(al)
XIncrease.This TWC Three Way Catalyst System can adopt, for example zirconium white or titanium oxide exhaust gas oxygen sensor, and perhaps the exhaust sensor of other type and a feedback electronic system keep required air-fuel ratio, make it near stoichiometric(al).
The catalyzer supporting bed can be bead or cellular (for example all-in-one-piece).The reducing material that is suitable for comprises ruthenium and rhodium, and oxidation material comprises cerium, platinum and palladium.
For diesel engine system, a series of different requirements have been proposed aspect emission control.The method that reduces particle and HC comprises makes fuel injection make fuel atomize, control fuel injection timing effectively with the air movement optimizing, under different loads, make supplementary loss in the combustion chamber minimize, reduce capsule volume (sacvolume) or be used for direct injection the valve cover hole nozzle, reduce distribution of lubrication oil and boost engine preheating.
With regard to aftertreatment, be well known that therefore the common poor combustion of diesel motor, comprises excessive oxygen usually in its exhaust.So, come reductive NO with common ternary catalyzing unit
XNot practicable.From diesel exhaust gas, remove NO
XPerhaps realize, perhaps by NO being resolved into O with catalytic thermal decomposition method by catalytic reduction optionally
2And N
2Realize.
People develop the diesel engine particles grabber, for example diesel particulate filter (CDPFS) and cyclic regeneration technology diesel particulate filter (CRTDPFS), and it adopts pottery or metallic filter.Heat and the catalytic regeneration stored material that can burnout.The new particle standard of recently considering may need this grabber.Comprise that the burning of the fuel element of sulphur and aromatic component and lubricant all can increase the discharging of particulate matter.Developed for the highly effective diesel catalyst device of oxidation organic granular part.
By using a kind of petrol engine of poor combustion, for example a kind of direct injection spark ignition engine can improve the economy of fuel, yet, can't utilize a kind of typical ternary catalyzing unit to reduce NO in the oxidation discharge effectively at present
X, because the oxygen quenching of high density reduction reaction.Do not adopt NO
XResorber or poor NO
XGrabber (LNT), poor combustion petrol engine just can't obtain the fuel economy of superelevation.The effect of LNT is to remove NO from exhaust
X, it is remained in time of back is reduced.Must pass through reductive NO
XLNT is periodically regenerated.This can realize with the purpose that reaches the cleaning grabber by operation engine under the condition of dense air-fuel ratio.The change meeting of this operating condition oppositely influences the economy and the driven nature of fuel.These LNT can also be placed on the diesel engine, and this diesel engine also moves under the situation of rare air-fuel ratio.With the same in poor combustion petrol engine, the exhaust of this engine of two types all is clean oxidisability, therefore can not assist in removing NO
XRequired reduction reaction.An object of the present invention is to improve storage efficiency and the wearing quality of LNT, and prolongation LNT must regenerate work-ing life before.
Be well known that resorber is very easy to be subjected to sulphur (to be seen, for example people's such as M.Guyon Impact of Sulfuron NO
XTrapcatalyst Activity-Study of the Regeneration Conditions, SAE PaperNo.982607 (1988) and P.Eastwood, Critical Topics in Exhaust Gas Aftertreatment, Research Studies Pree Ltd. (2000) 215-218 page or leaf) and the destruction of the product that generates of fuel combustion and conventional lubricated consumption and deactivation.An object of the present invention is to provide a kind of fuel or lubricating composition, its byproduct that can reduce sulphur and other discharging is to comprising NO
XResorber and LNT are in the disadvantageous effect of interior blowdown system.
Be well known that, control combustion chamber and suction valve settling, cleaning gas port type fuel injector and vaporizer, prevent wearing and tearing and oxidation, improvement is lubricated and emission behavior and guarantee storage stability and cold day flows, these all are by means of being applicable to that the performance fuel that different application and engine require realizes.Be well known that, adopt fuel sanitising agent, diffusant, corrosion inhibitor, stablizer, oxidation preventer and performance additive to improve the ideal performance of fuel.
Be well known that, with the organo-metallic manganic compound, for example can be used in the gasoline, both as the discharging reductive agent, again as detonation suppressor (seeing for example U.S. Pat 2818417) from the methyl cyclopentadienyl tricarbonyl manganese (MMT ) that Virginia Richmand ethyl limited-liability company buys.These manganic compounds are used to reduce the sedimental formation (U.S. Pat 5551957 and 5679116) in the fuel drawing-in system, the settling that reduces in the sparking plug forms (U.S. Pat 4674447), and reduces the sedimental formation (US4175927,4266946,4317657,4390345) in the blowdown system.Also known, use the organo-metallic iron cpd, for example ferrocene comes boosting of octane rating (US4139349).
People are with organometallic compound, for example the compound of Ce, Pt, Mn or Fe and other metal adds in the fuel, strengthening the particle capture performance, thus reduction or directly reduce particle emission in diesel engine or ignition h type engine h or other firing system.These additives act on the particulate matter in the combustion processes or in discharge or in particle capture by the metallic particles as the product of additives decompose and work.
Summary of the invention
Therefore, an object of the present invention is to overcome limitation and defective in said system and the method, the method for using a kind of composition to protect and improve the operation of fire emission after-treatment system is provided.
An embodiment provides a kind of method of strengthening the discharge post-treatment system function in the diesel-fuel firing system, comprise a kind of diesel-fuel that contains a kind of additive is provided in the diesel-fuel firing system, described additive comprises a kind of manganic compound.This firing system comprises the diesel particulate filter of a catalytic or cyclic regeneration.So this fuel produces a kind of byproduct that comprises manganic compound at least when burning in the combustion chamber.The consumption of manganese reach at least can with a kind of combustion by-product compound significant quantity.This manganic compound or mn ion can be a kind of inorganic metal compound or a kind of organometallic compound.Described inorganic metal compound can be selected from following group: fluorochemical, muriate, bromide, iodide, oxide compound, nitrate, vitriol, phosphoric acid salt, carbonate, hydride, oxyhydroxide, nitride and composition thereof.Described organometallic compound is selected from following group: alcohol, aldehyde, ketone, ester class, acid anhydride class, Sulfonates, phosphonates, inner complex, phenates, crown ether, carboxylic acid, acid amides, acetyl pyruvate and composition thereof.A kind of preferred organometallic compounds is a methyl cyclopentadienyl tricarbonyl manganese.
Another embodiment provides a kind of method of strengthening the function of the discharge post-treatment system in the diesel fuel combustion systems, and comprising provides a kind of diesel-fuel in the diesel-fuel firing system.Described firing system can comprise a catalytic diesel particulate filter, the perhaps diesel particulate filter of a cyclic regeneration.Described fuel burns in a firing system, and it produces at least a combustion by-product in effluent streams.A kind of additive that comprises manganic compound is injected described effluent streams.This manganic compound and at least a combustion by-product are compound.Described manganic compound can be a mineral compound, also can be organic compound, and its consumption reaches and described at least a combustion by-product compound significant quantity.Described inorganic metal compound or organometallic compound can be above-mentioned.
Another embodiment provides a kind of emission control systems, is used for the aftertreatment of the effluent streams of diesel-fuel combustion method, and this system comprises a kind of vent pathway.The effluent streams that this vent pathway allows to contain diesel-fuel incendiary exhaust byproduct is passed through, and described diesel oil fuel comprises a kind of manganic compound.This system also comprises the diesel particulate filter of a catalytic or cyclic regeneration, and this filter bits is in described vent pathway and be suitable for contacting with described effluent streams.Described effluent streams comprises a kind of manganic compound, and itself and at least a exhaust byproduct are compound.The manganic compound that can adopt comprises what those were pointed out in this manual.
Another embodiment provides a kind of emission control systems, is used for the aftertreatment of the effluent streams of diesel-fuel combustion method, and this system comprises a vent pathway.This vent pathway that is used to flow through effluent streams contains diesel oil fuel incendiary exhaust byproduct, and the diesel particulate filter of catalysis or cyclic regeneration is positioned at this vent pathway, and is suitable for contacting with effluent streams.Introduce a kind of additive in the described effluent streams, this additive comprises a kind of manganic compound, and itself and at least a exhaust byproduct are compound.The available manganic compound comprises to be pointed out in this specification sheets.
Another embodiment comprises the method for the function of the discharge post-treatment system in a kind of reinforcement one firing system, comprises to a fuel combustion system a kind of fuel is provided, and this fuel comprises a kind of additive, and this additive comprises a kind of manganic compound.Described fuel burns in the combustion chamber, produces at least a byproduct that comprises manganic compound.The consumption of manganese reaches and at least a combustion by-product compound significant quantity.
Another embodiment provides the method for the function of the discharge post-treatment system in a kind of reinforcement one firing system, comprises to a firing system a kind of fuel is provided.This fuel burns in firing system, has a kind of combustion by-product in its effluent streams at least.A kind of a kind of additive of manganic compound that comprises is injected described effluent streams.This manganic compound and at least a combustion by-product are compound.
Detailed description of the present invention
The additive that is adopted in method and system of the present invention is to contain compound inorganic or organo-metallic manganese, and it may be dissolved in the fuel.This fuel burns in a firing system, and described system comprises an after-treatment system.This fuel prevents that those from can make the infringement of the deleterious combustion by-product of its inefficacy to after-treatment system.Manganese in the additive has also promoted the oxidation of carbon granule thing.As long as one introduces in the effluent streams, manganese just contact with carbon component in the particle, quickened the oxidizing reaction of carbon, and the help after-treatment system reduces.Manganic compound also reduces soot and gathers.Also can comprise other after-treatment system in the described blowdown system.
The hydrocarbon fuels firing system of being benefited from method of the present invention comprises the engine of all combustion fuels.Here, " the firing system meaning is, any and all internal combustions and outer burning device, machine, engine, turbine, boiler, incinerator, evaporation burner, fixed burner or the like can burn a kind of fuel or a kind of fuel within it can the incendiary device.Be applicable to that the fuel in the firing system of the present invention comprises diesel-fuel, jet fuel, kerosene, synthol, for example Fischer-Tropsch fuel, liquefied petroleum gas, from coal deutero-fuel, Sweet natural gas, propane, butane, unleaded engine and aviation spirit, and so-called reformed gasoline (reformulated gasoline), this reformed gasoline generally all comprises the hydrocarbon polymer and the soluble oxygenatedchemicals of fuel of gasoline boiling spread, for example alcohol, ester class and other oxygen-containing organic compound that is suitable for.Be applicable to that oxygenatedchemicals of the present invention comprises methyl alcohol, ethanol, Virahol, t-butanols, blended C
1-C
5Alcohol, methyl tertiary butyl ether, tert pentyl methyl ether, Ethyl Tertisry Butyl Ether and mixed ether thereof.The common in use volume ratio by 25% of oxygenatedchemicals is provided in the basic fuel, and preferred oxygen content is total volume of fuel about 0.5 to about 5.Other useful fuel has gasoline, marine fuel oil, coal ash, crude oil, refining " residual oil " and byproduct, crude oil extract, dangerous waste product, factory's tankage and waste product, wood chip and sawdust, agricultural waste product and crop, plastics and other organic waste product and/or byproduct in method and apparatus of the present invention, and composition thereof, and emulsion, suspension and dispersion in water, ethanol or other carrier.At this, " diesel-fuel " refers to one or more fuel that are selected from following group: diesel-fuel, biofuel, biofuel deutero-fuel, combined diesel oil and composition thereof, and other meets the product of ASTM D975 definition.Preferably, the sulphur content in the diesel-fuel is lower than 30ppm.Though the fuel with higher sulfur content within the scope of the invention, being used for catalysis at present, to strengthen after-treatment system be unpractiaca.
Be applicable to that typically firing system of the present invention comprises emission control or after-treatment system to a certain degree.Under various combustion cases, emission treatment can comprise that a kind of catalysis system reduces deleterious discharge.Certainly, other discharge treating system is known.Unfortunately, As time goes on many such blowdown systems lost efficacy easily, and this is because the discharge treating system component is poisoned or the cause of degraded.
The present invention attempts to a kind of additive, a kind of fuel composition or also can directly provide a kind of manganic compound in effluent streams or in the combustion zone of this combustion method, and like this, the function of the assembly of discharge treating system will be strengthened significantly.The application of a co-pending discloses the chance of various distribution and combination, wherein uses a kind of water-soluble manganese additive that contains of water-based.U.S. Patent Application Serial application on June 7th, 10/165462,2002.
Draw together element in this preferred metals with ionic manganese, its parent, and the mixture that wraps manganiferous metallic compound.These manganic compounds can be organic or inorganic.Manganese or its ion form at the scene, decompose or make also is effective in the present invention.
In one embodiment of the invention, preferred inorganic metal compound can comprise (giving an example rather than qualification) fluorochemical, muriate, bromide, iodide, oxide compound, nitrate, vitriol, phosphoric acid salt, nitride, hydride, oxyhydroxide, carbonate and composition thereof.Manganous sulfate and manganous phosphate are applicable to the present invention, can not occur unacceptable additional sulphur and phosphorus combustion by-product under some fuel and burn application occasion.In an embodiment of the present invention, preferred organometallic compounds comprises alcohol, aldehyde, ketone, ester class, acid anhydride class, vitriol, phosphonate, inner complex, phenates, crown ether, carboxylic acid, acid amides, acetyl pyruvate and composition thereof.
The particularly preferred manganese organometallic compound that contains is a manganese tricarbonyl compound.This compound was once talked about, for example in U.S. Pat 4568357,4674447,5113803,5599357,5944858 and European patent EP 466512B1.
Operable manganese tricarbonyl compound comprises cyclopentadienyl tricarbonyl manganese in according to practice of the present invention, methyl cyclopentadienyl tricarbonyl manganese, the dimethyl cyclopentadienyl tricarbonyl manganese, the trimethylammonium cyclopentadienyl tricarbonyl manganese, the tetramethyl-cyclopentadienyl tricarbonyl manganese, the pentamethyl-cyclopentadienyl tricarbonyl manganese, the ethyl cyclopentadienyl tricarbonyl manganese, the diethyl cyclopentadienyl tricarbonyl manganese, the propyl group cyclopentadienyl tricarbonyl manganese, the sec.-propyl cyclopentadienyl tricarbonyl manganese, tertiary butyl cyclopentadienyl tricarbonyl manganese, octyl group cyclopentadienyl three carbonylic acid manganese, the dodecyl cyclopentadienyl tricarbonyl manganese, the ethyl-methyl cyclopentadienyl tricarbonyl manganese, indenyl manganese tricarbonyl or the like comprises two or multinomial mixture of this compound.Preferably at room temperature be the cyclopentadienyl tricarbonyl manganese of liquid, for example mixture of the liquid mixture of methyl cyclopentadienyl tricarbonyl manganese, ethyl cyclopentadienyl tricarbonyl manganese, cyclopentadienyl tricarbonyl manganese and methyl cyclopentadienyl tricarbonyl manganese, methyl cyclopentadienyl tricarbonyl manganese and ethyl cyclopentadienyl tricarbonyl manganese or the like.
The preparation of this compound has document record, and for example U.S. Pat 2818417, and it all is disclosed in this and draws and be reference.
When adopting additive preparation in the method and system of the present invention, use the manganic compound of q.s, to reduce of the influence of poisonous substances such as sulphur, lead, zinc, soot and phosphorus to after-treatment system, reduce the soot deposit rate, reduce soot oxidation temperature, and strengthen the function of after-treatment system on the whole, this after-treatment system for example comprises a catalyzed diesel particulate filter, perhaps a cyclic regeneration diesel particulate filter.
Believe that manganic compound combines with poisonous substance in the vent stream, prevents that these poisonous substances from adhering to or depositing on the after-treatment system, for example on the catalytic surface of diesel particulate filter.See, for example A.J.Nelson, J.L.Ferreira, J.G.Reynolds, J.W.Roos and S.D.Schwab show " the X ray absorption characteristic of diesel exhaust particulates emission " (Application of Synchrotion Radiation Techniques to MaterialsScience V, Materials Recearch Society Conference Proceedings, No.59063 (2000)).For example, may form manganous sulfate and manganous phosphate and be trapped in the strainer.These manganous sulfates and manganous phosphate can not form precoat filter catalytic site glaze or occupy catalytic site.Such other additive of this mechanism and for example platinum is different.The platinum additive does not combine with the such Toxic of sulfuric acid and phosphoric acid or is compound.Effect according to the platinic compound of hypothesis in an additive is the catalyzer of replacing on the filter surfaces.The difference of other metal of manganese and platinum one class is basic chemical difference, and is for example described herein.Therefore, importantly the use of manganese will reach significant quantity in the used preparation additive of the present invention, is that also any other metallic compound that can additionally be used in combination can not have any negative interaction to the mechanism of manganese.
The consumption of additive or concentration can be selected according to the concentration of the sulphur in the diesel-fuel.A kind of processing rate of preferred manganic compound can surpass 100mg/l, and more preferably up to about 50mg/l, most preferably about 1 to about 30mg/l.
Term " aftertreatment " runs through the application, and it means and acts on effluent streams or any system on the discharge, device, method or its combination that the diesel-fuel burning generates." after-treatment system " comprises various types of diesel motor particulate filters, and be catalytic and non-catalytic, poor NO
XGrabber and catalyst converter, catalyst reduction system optionally, SO
XGrabber, diesel motor oxidation catalyzer, sourdine, NO
XTransmitter, oxygen sensor, temperature sensor, back-pressure transmitter, soot or particle sensor, emissions status watch-dog and transmitter, and the related system of any other type and method.
Polytype diesel particulate filter (DPFs) is arranged.Common on-catalytic DPFs is a kind of known technology, has used several years.This strainer works together particle and the such combustion by-product of soot is caught, and oxidation then perhaps " is burnt ".Catalyzed diesel particulate filter (C-DPFs) is to combine a kind of catalyzer on the matrix of strainer or in it, and this catalyzer is suitable for being reduced in the oxidizing temperature of the combustion by-product of strainer IT.Present C-DPFs comprises the strainer of carbonization trichroite or silicon carbide integral type.A kind of " cyclic regeneration diesel particulate filter " is a kind of like this system (CRT-DPF), and catalyzer wherein is an independent formula basic unit of flowing through, and is arranged in before the diesel particulate filter of vent pathway.
When burning in the engine according to the diesel engine cycle operation, diesel oil fuel discharges unburned soot particles in exhaust jet stream.Because the sooty oxidizing temperature surpasses 500 ℃, so, adopt to be positioned at strainer or its preceding catalyzer to reduce the soot oxidation temperature be ideal.A kind of catalyst converter is the part of filter matrix, that is, a kind of catalytic diesel motor particulate filter perhaps is C-DPF, and this strainer needs exhaust temperature could cause the refresh function of strainer between 325 to 400 ℃.Regeneration is exactly sedimentary sooty oxidation.In this system, on the catalytic site of soot deposit in filter matrix, the existence of temperature, pressure and catalyzer has reduced the required temperature of regenerating.In the diesel particulate filter of a cyclic regeneration, the sooty oxidizing temperature has been lowered, because catalyzer is oxidized to NO with the NO in the exhaust
2
Term " compound " is here attempted to describe and is contained combining of manganic compound and combustion by-products such as poisonous substance, soot and other particle.Described combination comprises covalent reaction or ionization reaction, or any other combine of metallic compound and combustion by-product.Term " combustion by-product " includes, but is not limited to particle, soot, not burning smoke soot, unburned hydrocarbons, partially combusted hydrocarbon polymer, spent hydrocarbon polymer, nitrogen oxide and other is because gas, steam, particle or the compound that combustion fuel produces.
Also running through " reinforcement " this term in the feature content of discharging aftertreatment, its meaning is that the function of after-treatment system is with respect to not burning manganic compound or be not injected into or otherwise flow into the improvement of the function of the similar system in it." reinforcement " includes, but is not limited to reduce the influence of emission control systems toxicity, reduces the soot deposit rate, reduces the temperature of soot oxidation in strainer.
When contain in the blowdown system a kind of may burned byproduct (for example those contain sulphur, phosphorus, lead, zinc or sooty byproduct) poison component the time, for example contain the poor NO of barium
XGrabber the invention provides a kind of method, and this method provides a kind of material that resists the active part (for example barium) in the poor combustion discharge.As long as contain manganic compound and the metal antagonism that is used for poisonous substance (for example sulphur) the compound catalysis system of potential blowdown system in the additive, manganese just is suitable as pickling agent.And manganese pickling agent of the present invention can reduce the harmful effect of other poisonous substance (for example sulphur, phosphorus, lead, zinc or the soot in the emission control systems of poor combustion firing system in one embodiment of the invention).
In the present invention, when the catalyzer in using manganiferous fuel combines with CRT-DPF, beyond thought benefit can appear.Deposition in DRT-DPF is very low, and regeneration temperature is reduced to catalyzer or the viewed regeneration temperature of CRT-PDF that is lower than in the independent use fuel.
Description of drawings
The CRT-DPF load that Fig. 1 is initial 12 minutes.
CRT-DPF load among initial 10 hours of Fig. 2.
Fig. 3 CRT-DPF test of regenerating.
Embodiment
Embodiment 1
At this used additive is the manganic compound that contains that dissolves in the inorganic metal that maybe can be scattered in the diesel-fuel.Manganese has promoted the oxidation of carbon granule thing.Exhaust gas post-treatment device is a kind of cyclic regeneration diesel particulate filter (CRT-DPF).After fuel being introduced in combustion chamber or the effluent streams, manganese obtains discharging, and combine with carbon component in the particulate matter or compound, quicken before the deposition in CRT-DPF or among the oxidizing reaction of generation.The detected result of the soot load in the strainer is that exhaust back-pressure (EGBP) increases.Fig. 1 and 2 shows the comparison of EGBP curve under basic and the situation of having used additive.Fig. 1 is illustrated in catalyzer and lights initial stage soot deposit curve before, as can be seen from the figure, uses the fuel that has additive to cause the benefit of bringing EGBP to reduce immediately.Fig. 2 shows the continuity of this benefit in 10 hours.Sooty deposition in the basic fuel (increase by EGBP characterizes) is 0.06 kPa per hour.When test added the fuel of additive, deposition had reduced to 1/3, reaches per hour 0.02kPa.The more details of the test that relates to here being mentioned are included among the SAE paper No.2002-01-2728, its exercise question is " TheRole That Methylcyclopentodienyl Mangance Tricarbonyl (MMT) Can Play inImproving Lpw-Temperature Performance of Diesel Particulate Filters ", at this it is introduced in full.
Used in this example basic fuel is a kind of ultra low sulfur diesel fuel of buying from Phillips company.The sulphur content of the demarcation of this fuel is 3ppm.It is 20mg/l that the additive that provides makes the manganese content of the fuel after the interpolation.Used additive is MMT (an Ethyl company).
Deposited in strainer after the soot, the temperature when detecting regeneration generation (soot of accumulation burns down) is useful.Fig. 3 illustrates the burning basic fuel and adds the result of regeneration test under two kinds of situations of additive fuel.For not additivated fuel, when surpassing about 280 ℃, exhaust temperature begins regeneration.The carbon burning that is accumulated in strainer causes regeneration to be finished.It should be noted that to need only soot one burning-out, the back-pressure of engine remains below the not back-pressure of doping fuel.In other words, for the fuel that has added additive, not only soot burns down under lower temperature, and back-pressure is lower than not additivated fuel, as shown in Figure 3.
Example 2
Exhaust gas post-treatment device is a kind of catalyzed diesel particulate filter (C-DPF).As long as catalytic fuel one is introduced in combustion chamber or the effluent streams, manganese just is decomposed out, and combines with carbon component in the particulate matter, quickens in C-DPF before the deposition or the oxidizing reaction that takes place in the deposition process.Because the soot deposit rate is lower, soot comprises a kind of catalytic metal, regeneration temperature with respect to C-DPF and not the situation of doping fuel reduced.Example 3
In example 1 and 2 described application, used manganese will form stable metal composite, comprise manganous phosphate.Be discharged into manganese and lubricant deutero-phosphorus reaction in combustion chamber or the discharge, form as the stable phosphate metal of particulate, this has reduced or has prevented phosphorus deposition on the used catalytic metal in CRT-DPF or C-DPF.Catalyzer has been protected in these uses that contain the manganese fuel dope, makes it avoid the infringement of phosphorus.Example 4
In example 1 and 2 described application, used manganese additive also can form stable metal sulfate.CRT-DPF or C-DPF back connect a kind of poor NO to the sulfur poisoning sensitivity
XStoring device.Be discharged into a part and the fuel or the lubricant deutero-reaction of Salmon-Saxl of the metal in combustion chamber or the discharge, form stable manganous sulfate, thereby remove SO
2And SO
3, and reduce or prevented that the sulphur class is at poor NO
XDeposition on the storing device.
Example 5
The manganese additive that contains of the present invention has been strengthened the function of after-treatment system by reducing the sintering of combustion by-product metal on DPF.The sintering of combustion by-product metal can cover on the surface of catalysis DPF, and catalytic site was lost efficacy." sintering " is exactly owing to the heat in the strainer makes the fusion on filter surfaces of combustion by-product particle.Compare with the not additivated fuel of burning, contain manganese additive and reduced agglomerating amount on filter surfaces, therefore, increased the useful life of strainer.Also make the easier cleaning of strainer, because reduced the sintering of byproduct on filter wall.
Example 6
Because the manganese additive that contains of the present invention has quickened ash deposition in DPF, but has reduced the Magnification of back-pressure, so strengthened the function of after-treatment system.Manganese combines with combustion by-products such as sulfur oxide and phosphorus oxide, forms stable manganic compound, then as ash, and together is hunted down with ash in the strainer.Be surprisingly found out that though increased ash for a certainty, back-pressure does not increase.And, containing manganese additive by use, DPF need not to remove frequently as before, and when removing, ash can be removed fully.
Be appreciated that, any part is with the reagent and the component of chemical name appellation in this specification sheets and claims, no matter be odd number or plural number, all be interpreted as with the state that exists before another kind contacts with the material of chemical name (for example basic fuel, solvent etc.) or type appellation.It is with to occur in chemical transformation in formed mixture or solution or the reaction medium, transformation and/or reaction (if there is) irrelevant, because this variation, transformation and/or reaction are the natural results of specific reagent and/or component being put together under according to condition of the present disclosure.Therefore, reagent and component are understood that the composition that is brought together, or when carrying out an ideal chemical reaction (for example formation of inorganic metal compound), or when forming a kind of ideal component (for example a kind of additive concentrate or added the fuel blends of additive).It will also be appreciated that binder component itself can join separately in the basic fuel, perhaps dope in the basic fuel, and/or be used for forming effective additive combination and/or divide combination as component.Therefore, though the following claim book may relate to material, component and/or the composition of present tense, be interpreted as these materials, component or composition its for the first time with one or more according to the state before the mixing of other material of the present invention, component and/or composition.Therefore, these materials, component or composition by among mixing process or the chemical reaction after this mixing process or the transformation fact that loses its primitive character for understanding the disclosure exactly and its claims are unimportant.
Whole specification sheets all discloses and disclosed technical article with reference to United States Patent (USP), foreign patent application.The document of all references all is attached in the disclosure clearly in full.
In practice, the present invention includes sizable modification.Therefore, the description of front is not intended to the present invention is limited to certain embodiments above-mentioned.On the contrary, the content that it covered proposes in claims, and these contents and equivalent thereof are subjected to the protection of law.
The patentee does not attempt any disclosed embodiment is contributed to the public, is not included in any disclosed improvement or replacement in claims scope for those, thinks that they constitute a part of the present invention with the meaning of equivalent.
Claims (8)
1. the method for the negative interaction of an ash deposition thing that is used for reducing a diesel-fuel firing system comprises:
Provide a kind of diesel-fuel in a diesel-fuel firing system, this fuel comprises a kind of additive, and this additive comprises a kind of manganic compound, and described firing system comprises a catalytic diesel particulate filter,
This fuel of burning in this firing system, producing at least a byproduct that comprises manganic compound,
The consumption of described manganic compound reaches and at least a combustion by-product compound significant quantity.
2. the method for the negative interaction of an ash deposition thing that is used for reducing a diesel-fuel firing system comprises:
Provide a kind of diesel-fuel in a diesel-fuel firing system, this fuel comprises a kind of additive, and this additive comprises a kind of manganic compound, and described firing system comprises a continuous restorative diesel particulate filter,
This fuel of burning in this firing system, producing at least a byproduct that comprises manganic compound,
The consumption of described manganic compound reaches and at least a combustion by-product compound significant quantity.
3. one kind reduces the diesel-fuel firing system middle filtrator recovery method of engine back-pressure afterwards, comprising:
Provide a kind of diesel-fuel in a diesel-fuel firing system, this fuel comprises a kind of additive, and this additive comprises a kind of manganic compound, and described firing system comprises a catalytic diesel particulate filter,
This fuel of burning in this firing system, producing at least a byproduct that comprises manganic compound,
The consumption of described manganic compound reaches and at least a combustion by-product compound significant quantity.
4. one kind reduces the diesel-fuel firing system middle filtrator recovery method of engine back-pressure afterwards, comprising:
Provide a kind of diesel-fuel in a diesel-fuel firing system, this fuel comprises a kind of additive, and this additive comprises a kind of manganic compound, and described firing system comprises a continuous restorative diesel particulate filter,
This fuel of burning in this firing system, producing at least a byproduct that comprises manganic compound,
The consumption of described manganic compound reaches and at least a combustion by-product compound significant quantity.
5. the agglomerating method of the combustion by-product on the diesel particulate filter that reduces in the diesel-fuel firing system comprises:
Provide a kind of diesel-fuel in a diesel-fuel firing system, this fuel comprises a kind of additive, and this additive comprises a kind of manganic compound, and described firing system comprises a catalytic diesel particulate filter,
This fuel of burning in this firing system, producing at least a byproduct that comprises manganic compound,
The consumption of described manganic compound reaches and at least a combustion by-product compound significant quantity.
6. the agglomerating method of the combustion by-product on the diesel particulate filter that reduces in the diesel-fuel firing system comprises:
Provide a kind of diesel-fuel in a diesel-fuel firing system, this fuel comprises a kind of additive, and this additive comprises a kind of manganic compound, and described firing system comprises a continuous restorative diesel particulate filter,
This fuel of burning in this firing system, producing at least a byproduct that comprises manganic compound,
The consumption of described manganic compound reaches and at least a combustion by-product compound significant quantity.
7. method of removing the poisonous substance of the combustion by-product in the combustion system of diesel engine comprises:
Provide a kind of diesel-fuel in a diesel-fuel firing system, this fuel comprises a kind of additive, and this additive comprises a kind of manganic compound, and described firing system comprises a catalytic diesel particulate filter,
This fuel of burning in this firing system, producing at least a byproduct that comprises manganic compound,
The consumption of described manganic compound reaches and at least a combustion by-product compound significant quantity.
8. method of removing the poisonous substance of the combustion by-product in the combustion system of diesel engine comprises:
Provide a kind of diesel-fuel in a diesel-fuel firing system, this fuel comprises a kind of additive, and this additive comprises a kind of manganic compound, and described firing system comprises a continuous restorative diesel particulate filter,
This fuel of burning in this firing system, producing at least a byproduct that comprises manganic compound,
The consumption of described manganic compound reaches and at least a combustion by-product compound significant quantity.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10/271,618 US20040074230A1 (en) | 2002-10-16 | 2002-10-16 | Method of oxidizing soot and reducing soot accumulation in a diesel fuel combustion after treatment system |
| US10/271618 | 2002-10-16 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1504547A CN1504547A (en) | 2004-06-16 |
| CN1279149C true CN1279149C (en) | 2006-10-11 |
Family
ID=32042918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2003101014357A Expired - Fee Related CN1279149C (en) | 2002-10-16 | 2003-10-16 | Method of oxidizing soot and reducing soot accumulation in adiesel fuel combustion after treatment system |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20040074230A1 (en) |
| EP (2) | EP1411106A1 (en) |
| JP (1) | JP2004138050A (en) |
| CN (1) | CN1279149C (en) |
| AU (1) | AU2003241647A1 (en) |
| CA (1) | CA2438157C (en) |
| SG (1) | SG126731A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110226023A (en) * | 2017-02-03 | 2019-09-10 | 斯堪尼亚商用车有限公司 | By providing method of the low-temperature molten salt to be compacted the ash content being deposited in the filter to particulate filter |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7111591B2 (en) * | 2003-12-10 | 2006-09-26 | Afton Chemical Corporation | Method of improving the operation of combustion particulate filters |
| DE10359395A1 (en) | 2003-12-18 | 2005-07-21 | Daimlerchrysler Ag | Method for operating a particulate filter in the exhaust system of an internal combustion engine of a motor vehicle |
| US7878160B2 (en) * | 2007-09-24 | 2011-02-01 | Afton Chemical Corporation | Surface passivation and to methods for the reduction of fuel thermal degradation deposits |
| CN102112225B (en) | 2008-07-31 | 2013-10-23 | 日产自动车株式会社 | Catalyst for purification of exhaust gas |
| MY152352A (en) | 2009-03-04 | 2014-09-15 | Nissan Motor | Exhaust gas purifying catalyst and method for manufacturing the same |
| JP5041103B2 (en) * | 2009-11-17 | 2012-10-03 | 日産自動車株式会社 | Exhaust gas purification catalyst and method for producing the same |
| DE102017128853A1 (en) * | 2017-12-05 | 2019-06-06 | Volkswagen Aktiengesellschaft | Exhaust after-treatment system for an internal combustion engine and method for operating an internal combustion engine |
| US10774708B2 (en) * | 2018-09-04 | 2020-09-15 | Afton Chemical Corporation | Gasoline particulate filters with high initial filtering efficiency and methods of making same |
| US10774722B2 (en) | 2018-09-04 | 2020-09-15 | Afton Chemical Corporation | Predictive methods for emissions control systems performance |
| CN112664304A (en) * | 2020-12-14 | 2021-04-16 | 广西玉柴机器股份有限公司 | Take six engine structures in state of tertiary aftertreatment |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4035530A (en) * | 1976-05-07 | 1977-07-12 | Apollo Chemical Corporation | Method of inhibiting sulfidation and modifying deposits |
| WO1985001513A1 (en) * | 1983-10-05 | 1985-04-11 | The Lubrizol Corporation | Manganese and copper containing compositions |
| US4568357A (en) * | 1984-12-24 | 1986-02-04 | General Motors Corporation | Diesel fuel comprising cerium and manganese additives for improved trap regenerability |
| DK152925C (en) * | 1985-06-28 | 1989-04-10 | Sparol Int Aps | ADDITIVE TO LIQUID FUEL |
| FR2637909A1 (en) * | 1988-10-18 | 1990-04-20 | Rouet Jean | Combustion additives containing metal derivatives, process for their manufacture and their use |
| US5944858A (en) * | 1990-09-20 | 1999-08-31 | Ethyl Petroleum Additives, Ltd. | Hydrocarbonaceous fuel compositions and additives therefor |
| US6003303A (en) * | 1993-01-11 | 1999-12-21 | Clean Diesel Technologies, Inc. | Methods for reducing harmful emissions from a diesel engine |
| ES2300103T3 (en) * | 1994-03-02 | 2008-06-01 | William C. Orr | FUEL COMPOUND WITHOUT LEAD. |
| AU6548996A (en) * | 1995-07-18 | 1997-02-18 | Clean Diesel Technologies, Inc. | Methods for reducing harmful emissions from a diesel engine |
| DE19818536C2 (en) * | 1998-04-24 | 2002-04-11 | Daimler Chrysler Ag | Process for the neutralization of sulfur dioxide and / or sulfur trioxide in exhaust gases |
| US6629407B2 (en) * | 2000-12-12 | 2003-10-07 | Ethyl Corporation | Lean burn emissions system protectant composition and method |
| US20030226312A1 (en) * | 2002-06-07 | 2003-12-11 | Roos Joseph W. | Aqueous additives in hydrocarbonaceous fuel combustion systems |
-
2002
- 2002-10-16 US US10/271,618 patent/US20040074230A1/en not_active Abandoned
-
2003
- 2003-08-25 CA CA002438157A patent/CA2438157C/en not_active Expired - Fee Related
- 2003-08-28 AU AU2003241647A patent/AU2003241647A1/en not_active Abandoned
- 2003-09-08 JP JP2003315849A patent/JP2004138050A/en active Pending
- 2003-09-08 SG SG200305665A patent/SG126731A1/en unknown
- 2003-09-22 EP EP20030021144 patent/EP1411106A1/en not_active Withdrawn
- 2003-09-22 EP EP06000569A patent/EP1657291A1/en not_active Withdrawn
- 2003-10-16 CN CNB2003101014357A patent/CN1279149C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110226023A (en) * | 2017-02-03 | 2019-09-10 | 斯堪尼亚商用车有限公司 | By providing method of the low-temperature molten salt to be compacted the ash content being deposited in the filter to particulate filter |
| US11098624B2 (en) | 2017-02-03 | 2021-08-24 | Scania Cv Ab | Method of compacting ash deposited in a particulate filter by providing a low-temperature melting salt to said filter |
| CN110226023B (en) * | 2017-02-03 | 2021-10-08 | 斯堪尼亚商用车有限公司 | Method for providing low temperature molten salt to particulate filter to compact ash in filter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1504547A (en) | 2004-06-16 |
| EP1657291A1 (en) | 2006-05-17 |
| EP1411106A1 (en) | 2004-04-21 |
| AU2003241647A1 (en) | 2004-05-06 |
| CA2438157C (en) | 2007-12-04 |
| US20040074230A1 (en) | 2004-04-22 |
| SG126731A1 (en) | 2006-11-29 |
| JP2004138050A (en) | 2004-05-13 |
| CA2438157A1 (en) | 2004-04-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8006652B2 (en) | Emissions control system for diesel fuel combustion after treatment system | |
| CN100486678C (en) | Protection agent composition and method for fuel-lean discharge system | |
| CN1467267A (en) | Aqueous additives in hydrocarbonaceous fuel combustion systems | |
| KR100787018B1 (en) | Method of enhancing the operation of diesel fuel combustion systems | |
| CN1279149C (en) | Method of oxidizing soot and reducing soot accumulation in adiesel fuel combustion after treatment system | |
| CN1508235A (en) | Use of maganese compounds to inhibit both low and high temp. corrosion in utility and industrial farnance system | |
| US20040040201A1 (en) | Ultra-low sulfur fuel compositions containing organometallic additives | |
| CN1279150C (en) | Method for increasing working efficiency of diesel fuel combustion treatment system | |
| CN1279148C (en) | Ultra-low sulfur fuel compositions containing organometallic additives | |
| CN1497139A (en) | Exhaust control system for diesel fuel combustion treatment system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: AFTON CHEMICAL INTANGIBLES LLC Free format text: FORMER OWNER: ETHYL CORP. (US) 451, FLORIDA BOULEVARD, BATON ROUGE, STATE OF LOUISIANA 70801. Effective date: 20110613 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20110613 Address after: Virginia, USA Patentee after: Afton Chemical Intangibles LLC Address before: Virginia, USA Patentee before: Ethyl Corp. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20061011 Termination date: 20141016 |
|
| EXPY | Termination of patent right or utility model |