explain the occurence of petroleum and also is
defining
Answers
Explanation:
Petroleum is a naturally occurring liquid found beneath the earth's surface that can be refined into fuel. Petroleum is a fossil fuel, meaning that it has been created by the decomposition of organic matter over millions of years.
What is petroleum?
Petroleum is a fossil fuel. It is a thick, dark colored crude oil that is found deep below the ground in certain areas. That's why it is a localized resource.
Occurence of petroleum:
Petroleum occurs deep under the surface of the earth between two layers of impervious rocks. It is less dense than water, therefore it floats on water. Petroleum oil deposits are found mixed with water, salt and earth particles. Natural gas occurs above petroleum.
What is refining of petroleum?
The process of separating petroleum into more useful fractions is called refining. Refining of petroleum is carried out in an oil refinery.
What is fractional distillation?
The separation of petroleum into different fractions is done by the process of fractional distillation. Fractional distillation is a process in which fractions of petroleum having different boiling points are collected separately. The useful fractions of petroleum are:
- Petroleum gas
- Petrol
- Diesel
- Kerosene
- Bitumen
- Paraffin wax
- Lubricating oil
