JPH0229712B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a complex of fuel additives for use in internal combustion engines.

Various fuel additives for oil cycle engines and diesel cycle engines are known.

These additives accomplish various functions, such as those described below.

Increase the octane number of gasoline or the cetane number of diesel engines.

Prevents corrosion and exerts detergent effect.

Prevents oxidation and the formation of rubbery and lacquer-like substances.

In the case of diesel cycle engines, it reduces smoke production.

For these applications, the additive must be soluble in the hydrocarbons used in internal combustion engines. It is usually liquid at room temperature. Additives must be added to the fuel in small quantities. This type of additive is
It is commercially available mixed with solvent, mineral oil, and synthetic oil. As a result, people have begun to divide and measure food into smaller portions. However, direct users often experience various difficulties. For example, motorists and drivers have had to fill their car's fuel tank with a volume of liquid additive that corresponds to the amount of fuel. Errors such as adding too much or too little additives can occur by adding commercially available additives to the fuel tank from a can or using a small meter.

Refiners, stockpilers, and depots use additives in concentrated form, where it is easier to do accurate metering. However, due to price issues, it is necessary to sell fuel without additives or fuel with a minimum amount of additives.

There is thus a commercial need for fuel additives that are easily and readily available to the consumer or user and can be used directly, without tedious metering, and without waste.

According to the invention, this type of desire is achieved by using solid, preferably tablets, each tablet being proportioned to a specific fuel volume, for example 10 liters. It is something.

Therefore, the consumer or user, for example a motorist or a driver, only has to place into the tank, for example, when filling it with fuel, the number of tablets per liter plus the number of fuels filled in the tank.

In order to achieve this kind of object, the present invention is characterized in that the fuel additive is blended into a liquid hydrocarbon-soluble carrier that is fixed at room temperature or under normal conditions and mainly contains hydrocarbons. It consists of a composite of a fuel additive and a carrier.

The hydrocarbons are acyclic, alicyclic, or aromatic hydrocarbons, and acyclic hydrocarbons are at least 17 carbon atoms, alicyclic hydrocarbons are at least 12 carbon atoms, aromatic Group hydrocarbons are those having at least 10 carbon atoms.

According to the invention, it is particularly preferred to use naphthalene as carrier.

The solid composite of the present invention can be produced by various methods. A particularly preferred method is the method described below.

Heating method The carrier is melted and the additives are melted therein. By cooling this fluid mixture,
A tablet containing the desired amount of the additive is manufactured.

Non-heating method The carrier is ground to the desired particle size, the additive is absorbed while stirring the ground carrier, and the resulting mixture is pressurized to form tablets containing the desired amount of additive.

The invention will be further illustrated by examples.

Example 1 Method for producing a multifunctional additive for gasoline (hot method) 838 kg of purified naphthalene was placed in a 2000 liter stainless steel container and heated to bring the temperature of the molten material to a
The temperature was brought to 82° C. and maintained at this temperature with stirring. A polyvalent additive (trade name: Lubrizol) is added to this melt.
Additive commercially available as 8101 (manufactured by Lubrizol Corp.)
159.5Kg was added and mixed while stirring. mixture
It was cooled to 20°C and made into 142,500 tablets using a known method. Each tablet contained 5.88 g of carrier and 1.12 g of gasoline additive, and was used at a rate of 1 tablet per 10 liters of gasoline.

Example 2 Production method of multifunctional additive for gasoline (cold method) 1000 kg of purified naphthalene was ground in a ball mill.
Screening through an 800 mesh/cm ² sieve yielded 986 Kg of ground powder. This was placed in a stainless steel container and 134Kg of gasoline additive was added while stirring. The additive used was one commercially available from Amoco International S.A. (Switzerland) under the trade name A577. After 20 minutes the additive was completely absorbed. 160,000 tablets were manufactured using a known tablet machine. Each tablet is 6.16
The tablet contained 1 g of carrier and 0.84 g of gasoline additive, and was used at a rate of 1 tablet per 15 liters of gasoline.

Example 3 Process for refining a multi-purpose additive for automobile diesel oil,
Non-heating method.

812 Kg of industrially pure naphthalene was ground in a ball mill and then sieved through a 800 mesh/cm ² sieve to obtain 800 Kg of ground naphthalene.
Pour this into a stainless steel container and stir
200Kg of additives were added to this. The additives are commercially available MPA-D. and D112 from Ethyl Corporation (USA) and have the following composition.

It is a blend of 55-35% MPA-D and 45-65% D112. After 25 minutes the additive was completely absorbed. From now on, using a known tablet making machine,
80,000 tablets were manufactured. Each tablet contained 10 g carrier and 2.5 g excipients. this is,
The ratio is suitable for use at the rate of 1 tablet per 5 liters of diesel oil.

The resulting solid tablets are then used directly by the consumer or user.

(Example of a solid composite obtained as a tablet) Example A Method for producing an octane number improver for fuel using an acyclic hydrocarbon as a carrier (cold method) In a closed steel mixer, n-dotriacontane (C ₃₂ 156.8 kg of H ₆₆ ) was added, and 43.2 kg of methylcyclopentadienytricarbonylmanganese salt was added. In addition, this manganese salt is 43.2 kg of manganese salt.
On the other hand, 0.20 kg of the sample was previously colored red with a known fat-soluble dye.

Continue stirring until the liquid layer is completely absorbed, approx.
After 30 minutes, 100,000 tablets containing 9.57 g of carrier and 0.43 g of organic manganese salt in 10 g were obtained by a known method.

One tablet is used for 20 liters of gasoline, and the average treatment concentration of active ingredient is 30 ppm.

Example B Method for producing an anti-wear agent for breaking-in of a two-stroke engine using an alicyclic hydrocarbon as a carrier (cold method) In a steel mixer, cyclotetradecane (C ₁₄ H ₂₈ )54kg and 4,4-methylenebis(2,6
- 96 kg of di-tertiary butylphenol) was added. Anti-wear phenolic additive used for 1.08 g of carrier and 2 liters of fuel per 3 g tablet after stirring gently for approximately 15 minutes at room temperature.
50,000 tablets containing 1.92 g were manufactured by known methods.

Example C Method for producing an anti-smoke additive for diesel fuel using an aromatic hydrocarbon as a carrier (hot method) 1042 kg of dissolved phenylbenzole (C ₁₂ H ₁₀ ) was placed in a 2000 liter stainless steel container.
While stirring and maintaining the melted raw material at 75-80°C, 168 kg of an additive manufactured by Ethyl Corporation (USA) known as HITEC 4201, which is believed to be composed of amine salts and organic acid salts of aliphatic amines, was added. I added it slowly. After the Ethyl additive is completely dissolved in the melted raw material, the reaction temperature is raised to 20°C, and then 1.67 kg of the Ethyl additive is mixed into one tablet used to treat 10 liters of diesel fuel. 100,800 tablets containing 10.33g of carrier,
Manufactured by known methods.

(Example of a solid composite obtained in a form other than a tablet) Example D Method for producing a cetane number improver in the form of solid granules (cold method) Duurethane (1, 2,
4,5-tetramethylbenzene) (C ₁₀ H ₁₆ )
1,200 kg and 199.9 kg of octyl, which had been previously dyed blue with 0.1 kg of a fat-soluble blue dye, were added, and the raw materials were stirred for about 40 minutes to completely absorb the nitrates.

Small blue scaly granules are obtained, 14,28%
Contains octyl nitrate. A heat-sealed polyethylene bag containing 20 g of granules for treating 20 liters of diesel fuel was manufactured in the following known manner. The cetane number increased by 7 units in diesel fuel with an original cetane number of 47.

Example E Method for producing granular lubricant for two-stroke engines (cold method) Diphenylethylene (C ₁₄ H ₁₂ ) is added to a steel mixer.
Then, 200 kg of pentaerythritol tetraoleate was added and stirred at a slow speed for about 40 minutes until the product was completely adsorbed to obtain granules. Using known methods, 10g
Heat-sealed polyethylene bags were manufactured containing Each contains granules consisting of 8 g of carrier and 2 g of lubricant. Each bag is placed in the fuel tank of a two-stroke engine, at a ratio of one bag per liter of fuel, to improve the lubricity of the fuel mixture during tough races, and for low horsepower engines. When used in motorcycles, it is suitable for providing sufficient lubricity to the fuel without the need for further addition of conventional lubricants.

The complex has the following properties.

Since each tablet contains an unmetered amount of additive per specified liter of fuel,
It is easily used by the direct consumer or user.

The product is safe to store and can be easily stored.

Fuel with a specific gravity higher than that of commercially available fuel gradually dissolves and falls to the bottom of the tank, increasing the concentration of active ingredients at the bottom of the tank, where the fuel is sucked. With these properties, a powerful chemistry occurs.

Regarding the products used, the following effects can be obtained.

1st, Otsutocycle engine Fuel purification (purification effect).

Improved purification (dispersion action) in the engine, especially in the PCV bubble.

Reduction of ice formation in fuel (anti-icing effect).

Rust and corrosion resistance of tanks and gasoline supply parts.

Reduced production of pollutants such as acid carbons and unburned hydrocarbons.

Second, diesel cycle engine Increase in cetane number.

Reduced smoke production.

Cleaning the injector.

Corrosion and rust prevention properties of tanks and diesel oil supplies.

Extended management time interval for injection system.

Increased engine efficiency.

Ease of starting in cold weather.

Products in tablet form may be sold in heat-sealed packaging or in boxes or other suitable containers to provide storage stability and ease of handling.

Claims (1)

[Scope of Claims] 1. A composite in which a fuel additive for internal combustion engines is supported on a hydrocarbon carrier that is solid at room temperature, the composite being a composite of a fuel additive that is soluble in liquid hydrocarbons. body. 2. The composite according to claim 1, wherein the hydrocarbon of the carrier is selected from aliphatic hydrocarbons having a composition having at least 17 carbon atoms. 3. The composite according to claim 1, wherein the hydrocarbon of the carrier is selected from alicyclic hydrocarbons having a composition having at least 12 carbon atoms. 4. The composite according to claim 1, wherein the hydrocarbon of the carrier is selected from aromatic hydrocarbons having at least 10 carbon atoms. 5. The composite according to claim 1, wherein the carrier contains naphthalene. 6 Claim 1, wherein the complex is a tablet;
The complex according to item 2, 3, 4 or 5. 7. Known fuel additives in claim 2,
6. The complex according to claim 6, which is absorbed into the carrier according to claim 3, 4 or 5 and made into a tablet.