Undoubtedly, bitumen is a familiar word to the masses, but perhaps this substance is so much that the popular custom of the people’s substance is known and known. In the discontinuous process, the aeration tower is filled with a certain volume of feed, and after blowing air with pre-determined conditions and reaching the desired specifications, the tower is inspected and the product is placed in the desired tanks. Heater (preheater)
Air blower or compressor: (blower or compressor)
Leakage is all the main components of a continuous aeration unit, but in a continuous feed process with a definite and controllable flow and a predetermined temperature, the incoming air is continuously barged and then the aeration operation is continuously out of the aeration tower under stable operating conditions. Becomes. This method of preparing bitumen, which is used in refineries, is considered due to the reduction of pollutant vapors, reduction of equipment and maintenance costs, and thermal reduction of feed preheaters.
Aeration in bitumen
Aeration is possible in horizontal and vertical towers, which are placed in vertical places due to higher efficiency. Aeration motors include feed viscosity, feed temperature, geometric shape of the tower.In this regard, it can be said that the viscosity of the air feed and the temperature of the process or the height to the diameter of the reaction speed tower will be higher and heat will be added to control and the outside temperature. Vapors from this process contain less than 10% of oxygen, nitrogen, methane, sulfur compounds and finally petroleum petroleum hydrocarbons .
Hydrocarbon
Hydrocarbon bitumen with dark brown – black color in solid, semi-solid or viscous forms with adhesive properties that are natural or refined is a combination of high molecular weight hydrocarbons. Vesylene is soluble and its vapor pressure is negligible in this environment, in which case it is almost odorless. The most numerous and widely used type of bitumen is petroleum bitumen, which is a homogeneous substance in terms of materials and a chemically heterogeneous mixture of different compounds. This hydrocarbon mixture generally contains 90% of carbon and hydrogen and the rest, nitrogen, sulfur, oxygen and chemical compounds. It is made of metals, nickel, iron, magnesium, etc. Note: Bitumen is a material in terms of behavior that in the environment has neither the behavior of an elastic material nor viscous material, but the behavior of bitumen includes a combination of these two states, ie elastic.
Method of preparation Emulsion
Emulsion will be produced in two ways, and in the first method, which is called rapid mixing, the bitumen is then heated to about 100 ° C simultaneously with a stream of water containing a small amount of a hookah salt. Be. It enters a chamber. In this chamber, molten bitumen and water are spun at high speed and mixed together with the help of a propeller inside the chamber. Emulsion-making grave in this method is created due to chemical interactions that take place between hookah salt in water and acidic substances in bitumen, and also its quality is prepared by fast mixing method, it must reach the material. Has the chemical composition of primary bitumen.
