What is the main composition of gas? Is it CH4? What is the composition of gas?

1, the main components of gas are carbon monoxide and hydrogen, and the main components of liquefied gas are organic compounds such as propane and butane, including CH4, which is not only flammable and explosive, but also toxic.

2. Coal gas is a gas containing combustible components processed from coal. According to the processing method, gas properties and uses, it can be divided into: water gas, semi-water gas and air gas (or producer gas) obtained from coal gasification.

3, these gases have low calorific value, so they are collectively called low calorific value gases; The gas obtained by dry distillation and coking of coal is called coke oven gas. It belongs to medium calorific value gas and can be used as urban civil fuel. Carbon monoxide and hydrogen in coal gas are important chemical raw materials.