3- lecture topic: Characteristics of natural gas. Types of natural and artificial gases

3- LECTURE

Topic: Characteristics of natural gas. Types of natural and artificial gases.

Reja:

• Tabiiy gazning harakteristikasi.
• Tabiiy va sun’iy gazlarning turlari.

Academician I.A.Based on Gubkin's theory
the appearance of natural gas
in the flora and fauna, it appears underground in the process of thermochemical separation of various organic residues.

Picture. The image of the joint formation of oil gas layers.

The amount of harmful impurities should not exceed the following amount in urban Gas Networks intended for gas supply every 100 cubic meters per gram bill:

• Gas fuel is purified from various powders and harmful impurities before delivery to consumers.

№	Name of the hazardous mixture	Limited amount, grams
1.	Hydrogen sulfide	2,0
2.	Hydrogen sulfide with mercaptan	3,6
3.	Mechanical compounds	0,1

The amount of harmful impurities.

Carbon monoxide is a strong toxic substance that reduces the blood's ability to carry oxygen. As a result, a person dies of poisoning.

In addition to them, natural and satellite gases contain water vapor, tar particles, dust, ammonia, hydrogen, hydrogen sulfide.

Hydrogen sulfide H2S is poisonous and has a strong effect on the human body, besides, it combines with water vapor in the gas to form sulfuric acid and corrodes the metal of gas pipes, boilers and industrial furnaces. Therefore, the amount of hydrogen sulfide in the gas supplied to consumers should not exceed 2%.
Naftalin
Carbon dioxide
Ammonia
Naphthalene. It sticks to the inner walls of the pipe, reduces its cross-section and reduces the gas pipeline's throughput
Carbon dioxide (SO2). It is a harmless substance, but it does not burn, occupies a certain volume in the gas and reduces its ability to give heat.
Ammonia. Corrodes the gas pipeline and emits toxic substances, the amount of which should not exceed 2 g/100 m3.

It ranks first in the Republic of Uzbekistan (83%).

Among primary energy resources
consumption of natural gas
Primary in the Republic of Uzbekistan
consumption of energy reserves.

Primary in the Republic of Uzbekistan

Primary in the Republic of Uzbekistan

consumption of energy reserves.

• flammable gases
• non-flammable gases

.
Flammable gases include: hydrogen H2, pentane C5H12, carbon monoxide CO, methane CH4, ethane C2H6, propane C3H8, butane C4H10.
Non-flammable gases include: carbon dioxide SO2, nitrogen N2, oxygen O2, water vapor N2O