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Petrochemical products are how to change from oil into a variety of products?

Petrochemical products are how to change from oil into a variety of products?

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(2) crackingIn order to solve the problem that the remainder of the petroleum distillation process is divided into light components and more valuable products are obtained, cracking is needed. Cracking is a kind of refining method for the separation of heavy hydrocarbons such as heavy oil into gasoline and diesel. With the development of the internal combustion engine, the amount of gasoline and diesel oil is increasing, and the straight run gasoline and diesel oil are far from meeting the requirements.(3) catalytic reformingThis is another important process in the oil industry. Catalytic reforming refers to the existing heating, hydrogen pressure and catalyst under the condition of the hydrocarbon molecular structure of gasoline fraction can be rearranged into a new molecular structure. The light gasoline fraction change of crude oil distillation from the rich aromatics with high octane gasoline (petrol reforming), and the by-product of liquefied petroleum gas and hydrogen.
fractionationBoiling point hydrocarbons increased with the increase of the carbon number, when heated, hydrocarbons with low boiling point to gasification, after first condensation separation. To separate compounds of different boiling points, this method is called fractionation. Fractionation is a physical change.The fractionation process is carried out in a high tower. The tower has carefully designed layers of tower plates with a certain temperature difference between the trays to obtain different fractions. Fractionation was carried out at atmospheric pressure to obtain a low boiling fraction, and then a high boiling fraction was obtained under pressure relief. Each fraction also contains a variety of compounds that can be further fractionated.
. The crude oil produced from oil wells often contains light gaseous hydrocarbons with a small amount of water, salt and sediment. Therefore, the need for oil refining before pretreatment, oil and gas separation, sedimentation sediment, and the electrical or chemical method of desalting and dewatering, and then transported to the refinery, processing to become people need energy products. In the process of petroleum refining, the main process includes crude oil fractionation, catalytic cracking, catalytic reforming, hydrogenation and so on.
Oil is made up of many different kinds of hydrocarbons, and there are few ways to use it directly. In order to make the various components of the oil can be effective, they must be extracted by refining process

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