The main purpose of N-methylaniline is the formation of required proknock properties of gasoline during its production. Moreover, the octane number and ecological compatibility of the product are regulated by MMA. These two factors have made N-methyl aniline one of the most popular multifunctional additives.
N-methylaniline — 1 % of the total additive increases the octane number
from 8 to 12 units, depending on the starting product.
Regular 92 + 1,3 % of NMA = Premium 95
Premium 95 + 1,5 % of NMA = Super 98
Weight 400 g of Regular gasoline that is equal to 98,7 % of total mass and add 5,3 g of NMA, equal to 1,3 % of total mass. Pour the additive carefully into gasoline and stir thoroughly till homogeneous mass. Evaluate the octane number by motor and researchmethods.
Weight 400 g of Premium gasoline that is equal to 98,5 % of total mass and 6,1 of NMA, equal to 1,5 % of total mass. Pour the additive carefully into gasoline and stir thoroughly till homogeneous mass. Make the evaluation of octane number both by motor and by research methods. The maximum concentration of ADA in gasoline is 1,5 %.
The technology of mixing together of NMA and NMA based boosters and gasoline is similar to the process of mixing of all motor fuels components. However, it is important to keep in mind that density of additive is higher than density of fuels. In case of blending is insufficient, the concentration of booster in the lower part of the tank will be higher than in the upper part of the tank.
The calculated amount of booster is poured from tanks into gasoline tanks and properly stirred.
To obtain the homogeneous fuel while compounding of additive with initial raw material use the following methods:
|Appearance||Visual inspection||Oily liquid of light yellow colour|
|Colour No.||Gas chromatography, normalization method||SH/TO168|
|Relative density (15/4 °C)||0,987-0,994|
|Purity of N-methylaniline, %||>99,00|
|Content of water, %||<0,20|