Background technique
Compared to gasoline, the unsaturated hydrocarbons impurity content in diesel oil is higher, this results in diesel oil and is not easy completely burned, therefore
Diesel engine is easy to produce black smoke, and is easy to appear carbon deposition phenomenon, is easier to form carbon distribution at engine nozzle position, influence
Engine work causes fuel consumption to increase, and exhaust emissions deteriorates, and engine life shortens.Diesel oil is non-renewable energy
It improves diesel oil cleanliness with the reduction of natural oil storage capacity and diesel oil full combustion is made to be current chemical industry neck in one of source
The problem of domain and auto industry are extremely paid close attention to, especially in the currently used diesel oil in China, catalytic cracking diesel oil proportion
It is also quite high, therefore also than more serious the problem of diesel oil oxidation generation colloid, paint film and deposit.When engine operates, oil spout
Mouth temperature is at 100 DEG C or so, and intake valve temperature is between 200-300 DEG C.At such temperatures, in diesel oil it is unstable at
Part, oxidative dimerization is easily generated, colloid and carbon distribution is generated, is deposited on intake valve and atomizer, advanced high pressure-charging hair
Motivation and carbon distribution is more prone to produce using the engine of GDI diesel oil direct injection technology.The deposit being deposited on intake valve, will cause
Inlet channel sectional area is reduced, and intake efficiency reduces, and power decline can make valve event slow, be not closed completely when serious.Oil spout
Mouth carbon distribution can make oil spout unsmooth, diesel oil atomization quality decline, after causing diesel oil to enter combustion chamber, it is difficult to which completely burned causes to send out
Motivation difficulty in starting, unstable idle speed and oil consumption increase, and exhaust emissions deteriorates, and especially in winter, these situations are more obvious.
Many places have been distinctly claimed non-clean diesel oil and have been not allowed to enter the market.With being widely used for diesel engine, the consumption of diesel oil just by
Year increases.However a large amount of consumption of diesel oil also inevitably result in being further exacerbated by for vehicle discharge nuisance.Due to discharging to life
State environment, human health and economic development seriously affect, and national governments have formulated strict emission regulation in succession, limit diesel oil
The noxious emission of vehicle.Therefore, the oil consumption and pollution for further decreasing diesel-engine road vehicle are current urgent problems to be solved.In crowd
In more solutions, the method using diesel fuel additives is not changing vehicle and engine structure, does not also increase the item of equipment
Under part, by changing the physical property of fuel, enable fuel full combustion, to realize energy conservation and purification discharge.Improve diesel oil hair
Motivation fuel combustion quality is many in the method for reducing tail gas pollution, the use of additive is economically and efficiently one of method.Mesh
Before, diesel fuel additives in the prior art exist have a single function, be larger to the corrosivity of engine interior, exhaust emissions nuisance
Matter reduces the disadvantages of unobvious.
Summary of the invention
In view of the problems of the existing technology, the present invention provides a kind of diesel fuel additives and preparation method thereof.
The invention adopts the following technical scheme:
A kind of diesel fuel additives, the diesel fuel additives include multi-functional dose and the aviation kerosine that mass ratio is 1:1-5,
According to the mass fraction, wherein described multi-functional dose includes following components:
Further, according to the mass fraction, wherein described multi-functional dose includes following components:
Further, according to the mass fraction, wherein described multi-functional dose includes following components:
Further, the diesel fuel additives includes multi-functional dose and (tasteless) aviation kerosine that mass ratio is 1:1-3, example
Such as 35 parts multi-functional dose and 35 parts of (tasteless) aviation kerosines.
Further, No. CAS of the 2- ethylhexyl nitrate is 27247-96-7.Further, light solvent stone
Cerebrol is solvent naphtha (petroleum), belongs to light aromatics, and No. CAS is 64742-95-6.Heavy solvent naphtha is solvent stone
Cerebrol (petroleum) belongs to heavy arene, and No. CAS is 64742-95-5.No. CAS of 1,2,4- trimethylbenzene is 95-63-6.1,3,5-
No. CAS of trimethylbenzene is 108-67-8.No. CAS of n-propylbenzene is 103-65-1.No. CAS of naphthalene is 91-20-3.Cumene
No. CAS is 98-82-8.
A kind of preparation method of diesel fuel additives, comprising the following steps:
(1) ingredient in described multi-functional dose is stirred evenly according to the ratio (using fire-proof motor) to get described multi-functional
Agent;
(2) described multi-functional dose and aviation kerosine are stirred evenly according to the ratio (using fire-proof motor) to get the diesel oil
Additive.
(20 DEG C of multi-functional dose of the density;g/cm3): 0.965;Close cup flash point (DEG C): >=74;Pour point (DEG C): < -48;
Kinematic viscosity (40 DEG C, mm2/ S): 6.9;Kinematic viscosity (- 20 DEG C, mm2/ S): 72.7.
Close cup flash point (DEG C, GB/T261) > 70 of the diesel fuel additives, such as 97;Mechanical admixture (mass number %, GB/
T511-2010) < 0.01, mechanical admixture is specifically free of;Moisture content (%, GB/T260) < 0.03, it is specifically not aqueous;Viscosity (40
DEG C, mm2/ S, GB/T265): 3.0~20.0, such as 10.81;Density (20 DEG C, g/cm3, GB/T1884-2008): 0.83~
0.93, such as 0.835;Low temperature properties: cloud point (DEG C, GB/T6986-2014): < -20, such as -30;Pour point (DEG C, GB/T3535-
< -30, such as -40 2006);Condensation point (DEG C, GB/T510-1983) < -30, such as -43;Copper corrosion (50 DEG C, 3 hours, GB/
T5096-1985)≤1b, such as 1b.
Diesel fuel additives of the present invention can be used for all kinds of diesel engines, and high pressure co-rail diesel electric jet vehicle is equally suitable
With can provide potent fuel nozzle detergency, promote power and accelerating ability, improving Cetane number (can make diesel oil
Cetane number amplification is up to 6), corrosion-inhibiting can be excellent, so that engine component is protected, good diesel oil foam control
Performance improves fuel economy, extends engine life, reduces discharge, extends engine life, to direct-injection, high-pressure common rail bavin
Oil machine equally has excellent effect, reduces ignition delay time, reduces engine noise and vibration, promotes burning, to reduce
Black smoke, stable storing.Every 80-100 rises that fuel tank uses 200mL every time or every 5000 kilometers use 1 time.
Diesel fuel additives of the present invention includes the polar activation factor, can adsorb colloid, greasy filth and carbon distribution, seep
Thoroughly, it removes, is discharged after high-temp combustion by tail gas, cleans entire fuel system.It is difficult, idle because being cold-started caused by carbon distribution to solve
The problems such as fast unstable, acceleration is powerless, over-emitting black exhaust.This product safety and environmental protection is free of alcohols material, does not corrode or damage engine portion
Part.
Beneficial effects of the present invention:
(1) diesel fuel additives of the invention can clean atomizer carbon distribution, keep burning more complete, improve fuel oil using effect
Rate promotes power;
(2) preparation method of diesel fuel additives of the invention is easy, at low cost, is suitble to large-scale industrial production application;
(3) diesel fuel additives of the invention can restore the good atomizing effect of fuel oil, improve and be cold-started difficult situation, can be effective
Diesel stability is improved, it is completely compatible with biodiesel;
(4) diesel fuel additives of the invention can with lubricating fuel spray nozzle, prevent atomizer adhesion it is stuck and blocking etc. failures;
(5) diesel fuel additives of the invention can clean combustion-chamber deposit, maintain normal compression ratio, reduce pinking, engine knock
Phenomena such as;
(6) diesel fuel additives of the invention can reduce noxious gas emission, protect environment.
The mass ratio of multi-functional dose of the diesel fuel additives of embodiment 1-2 and aviation kerosine is 1:1, the bavin of embodiment 3-4
The mass ratio of multi-functional dose of oil additive and aviation kerosine is 1:2, multi-functional dose and boat of the diesel fuel additives of embodiment 5-6
The mass ratio of empty kerosene is 1:3.
It is peace and quiet that diesel fuel additives (additional amount@1100ppm mg/kg) of the invention is subjected to high-pressure common rail DID engine
Property (SHDI) screening test quietness measure of merit, power loss percentage are listed in table 2 with the result of testing time.Testing standard and
Test method, GB/T18297-2001, automobile engine method for testing performance.It can be seen that: 1, do not add diesel oil addition of the invention
Agent will cause the blocking of high-pressure common rail DID engine nozzle segment, and fuel atomization effect is bad, makes incomplete combustion, causes to move
Power loss, and blocking is more serious, power loss is bigger;2, after adding diesel fuel additives of the invention, it is total that high pressure can effectively be cleaned
Rail DID engine nozzle deposit carbon keeps burning more complete, improves fuel oil utilization efficiency, restores power;3, from power loss negative
As can be seen that diesel fuel additives of the present invention can effectively promote Cetane number, engine power is promoted, saves fuel oil.
Table 2:
Rate of economizing gasoline detection: (testing standard and test method: GBT 14951-2007, vehicle fuel saving technique evaluation are detected
Method), it the use of rate of economizing gasoline after diesel fuel additives of the invention is 4.1%.
Discharging pollutants reduces ratio test (testing standard and test method: GB 17691-2005, automobile-used compression-ignited, gas
Fluid fuel spark-ignition engine and automobile exhaust dye object emission limit and measurement method (Chinese III, IV, V stage): this hair is used
Discharging pollutants after bright diesel fuel additives reduces ratio: CO2It is 3.9%, hydrocarbon 20%, CO 14%, nitrogen oxygen
Compound is 0.8%, particulate matter 16%.
Above is only a specific embodiment of the present invention, it is not intended to limit the scope of the invention, all utilizations
The equivalent transformation that the present invention makees, is applied directly or indirectly in other relevant technical fields, similarly includes of the invention
Among scope of patent protection.