CN109749808A - A kind of metallic addition containing manganese compound - Google Patents
A kind of metallic addition containing manganese compound Download PDFInfo
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- CN109749808A CN109749808A CN201711074213.9A CN201711074213A CN109749808A CN 109749808 A CN109749808 A CN 109749808A CN 201711074213 A CN201711074213 A CN 201711074213A CN 109749808 A CN109749808 A CN 109749808A
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- manganese
- manganese compound
- additive
- exhaust
- engine
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Abstract
The present invention relates to a kind of conjunction manganese compound metallic additions.The additive includes one or more containing manganese compound.The additive can be added in fuel before fuel is imported into combustion chamber or be added in the subsequent exhaust in combustion chamber.The additive improves the operation of diesel fuel combustion systems for example, by improvement exhaust aftertreatment performance.
Description
Technical field
The present invention relates to a kind of conjunction manganese compound metallic additions.The additive includes one or more containing manganese compound.
The additive can be added in fuel before fuel is imported into combustion chamber or be added in the subsequent exhaust in combustion chamber.The addition
Agent improves the operation of diesel fuel combustion systems for example, by improvement exhaust aftertreatment performance.
Background technique
The metallic addition that fuel includes is used for various combustion apparatus, for for example improving octane number, improving engine
Sediment monitoring, valve seating wear control reduce exhaust emissions and protection exhaust after treatment system.These additives can refine
Oily factory mixes fuel, or onboard as concentrate band, fuel stream is added when needed.
Vehicle-mounted metallic addition concentrate due to can reduce the ignition point of particle be used to that diesel engine particles be kept to catch
Catch the service life of filter (DPFs).By reducing ignition point, realize in the regeneration compared with catcher under low exhaust temperature.This is that have
Feature, because the exhaust of diesel engine rarely reaches high temperature necessary to catcher thermal ignition (more than 450 DEG C).As a result,
Grain load becomes so high, so that the raising of back pressure can interfere the normal operating of engine.In addition, subsequent igniting is ten
Divide acutely, so that the heat generated can be sintered and/or melt the catalyst of the component part as DPF.It has been found that logical
Crossing enables catcher often to be regenerated under relatively low delivery temperature, and the use of vehicle-mounted metallic addition can reduce back
Pressure and reduction sintering.
Manganese is one of the metallic addition used for DPFs metal.The most common organic metal form used is two
Luxuriant manganese.However, it has been found that two luxuriant manganese as manganese source be not always it is advantageous, be even more when especially as multifunctional additive for lubricating oils
In this way, because two luxuriant manganese have limited solubility in various solvents.
Summary of the invention
Additive and method of the invention is to be based on using containing manganese compound, and be based particularly on using including aphthenic acids
Manganese contains manganese compound.Manganese in additive can promote the oxidation of as combustion by-products carbon particulate matter.It is being introduced into
When effluent streams, manganese is contacted with the carbon fraction of particle, accelerates the oxidation reaction of carbon, therefore facilitate the regeneration of after-treatment system.
Due to facilitating the regeneration of after-treatment system, the increase of unacceptable exhaust back pressure is prevented containing manganese additive, otherwise due to
High particle load is generated in after-treatment system, such as diesel engine particles capture filter device (DPF), therefore exhaust back pressure will increase
Greatly.Due to limiting exposure of the DPF structure to the highly exothermic amount of destructiveness derived from high particulate load DPF, contain manganese compound
The service life of DPF can also be improved.
In one embodiment, combustion additive includes manganese naphthenate and hydrocarbon solvent.The additive, which has, to be greater than about
55 DEG C of flash-point.In one embodiment, the manganese concentration in additive is greater than 15g/L.
In another optinal plan, reduce the method derived from the engine back pressure of particle load on exhaust after treatment system
Including several steps.These steps include: to provide the combustion engine with exhaust after treatment system, are fired in the engine
Fuel burning will contain manganese compound and the burning and gas-exhausting is added to form burning and gas-exhausting, wherein the manganese compound that contains includes aphthenic acids
Manganese.It can be by will be added to and being added in fuel containing manganese compound before fuel burns within the engine containing manganese compound
In burning and gas-exhausting, or it is added in exhaust after fuel burns within the engine.
Another alternative method for improving diesel particulate filter operation carries out in a similar way.It should
The step of method includes: to provide the combustion engine with diesel particulate filter, the burn diesel fuel in the engine
And burning and gas-exhausting is formed, and manganese compound will be closed and be added in the burning and gas-exhausting, wherein closing manganese compound includes manganese naphthenate.
Specific embodiment
Embodiment
Metallic addition concentrate is estimated to be stored in vehicle-mounted special container, which meets more than 50,000 miles
Vehicle ages needs.Therefore, vehicle carried container must accommodate enough active metals, so as to maintain required operation
Time.In addition, multifunctional additive for lubricating oils must be stable under the extreme situation of vehicle performance.The two luxuriant manganese as manganese source are in bavin
Limited solubility in oil fuel in fact hampers it and is used for vehicle-mounted multifunctional additive for lubricating oils.
Manganese naphthenate has been considered to be that can be used in combination with the vehicle carried container of metallic addition concentrate suitable contains
Manganese compound.Particularly, manganese naphthenate is used in combination with hydrocarbon solvent has been considered to be effective.
In embodiments, the combustion additive comprising manganese naphthenate can have the manganese concentration greater than about 15g/L.?
In selectable embodiment, manganese concentration is greater than about 22g/L.In one embodiment, the manganese concentration in additive is about
23.6g/L.In the additive embodiment of the manganese concentration with about 23.6g/L, the amount of used manganese naphthenate be can be
Such as 196.66g/L solvent.In some examples, manganese concentration can be up to 125.0g/L in additive, or higher.
The present invention in an implementation can there are many variation.Therefore, description above is not intended to limit the invention to
In the specific illustration being given above, therefore it should not be considered to be restrictive.On the contrary, to be included is in right
Its coordinate that the content and law proposed in it is required that is permitted.
Applicant is not intended to any disclosed embodiment offering to the public, and therefore any disclosed change or
Person's variation, although may not be also considered as under same principle of the invention within the scope of the claims on literal
A part.
Claims (2)
1. a kind of metallic addition containing manganese compound, it includes manganese naphthenate and hydrocarbon solvent, the additive, which has, to be higher than about
55 DEG C of flash-point.
2. a kind of method for reducing the engine back pressure generated by the particle load on exhaust after treatment system, the method includes
Following steps:
The combustion engine for having exhaust after treatment system is provided,
Burning fuel to be within the engine to form burning and gas-exhausting,
There to be the combustion additive containing manganese compound to be added in burning and gas-exhausting, wherein the manganese compound that contains includes aphthenic acids
Manganese.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711074213.9A CN109749808A (en) | 2017-11-05 | 2017-11-05 | A kind of metallic addition containing manganese compound |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711074213.9A CN109749808A (en) | 2017-11-05 | 2017-11-05 | A kind of metallic addition containing manganese compound |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109749808A true CN109749808A (en) | 2019-05-14 |
Family
ID=66399645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711074213.9A Pending CN109749808A (en) | 2017-11-05 | 2017-11-05 | A kind of metallic addition containing manganese compound |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109749808A (en) |
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2017
- 2017-11-05 CN CN201711074213.9A patent/CN109749808A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190514 |
|
| WD01 | Invention patent application deemed withdrawn after publication |