The benefits and disadvantages of natural gas

1. Benefits:

From a technical point of view, natural gas as a fuel for power generation and heating is significantly better than traditional fossil energy sources such as coal and oil, etc. Gas turbines have many advantages, such as high energy conversion efficiency, small footprint, small number of laborers, short construction cycle, fast startup and shutdown, strong peak shifting capability, flexible and simple operation, large stand-alone capacity, safe and stable operation, low pollutant and carbon dioxide emissions, and low impact on geographical location and natural environment. It has many advantages, such as small influence by geographical location and natural environment.

2, the bad:

Natural gas in the air content reaches a certain level will cause people to asphyxiate. Natural gas is not as toxic as carbon monoxide, which is essentially harmless. However, natural gas can still kill if it is in high concentrations and leaves insufficient oxygen in the air to sustain life; after all, natural gas cannot be used for human respiration. As a fuel, natural gas can also cause injuries and deaths due to explosions.

While natural gas is lighter than air and disperses easily, it can trigger a powerful explosion when it reaches a certain percentage when it collects in an enclosed environment such as a house or tent. The explosion can level an entire house or even spill over into neighboring buildings. The lower explosive limit for methane in air is 5 percent and the upper limit is 15 percent.

The explosion of compressed natural gas, which is to be utilized in natural gas vehicle engines, is essentially non-existent under spontaneous conditions due to the volatile nature of the gas, so external forces need to be used to maintain the concentration of natural gas between 5 and 15 percent to trigger an explosion.

Expanded information:

Natural gas is an important source of energy, natural gas can be processed to produce different kinds of products:

1, liquefied natural gas

Natural gas at atmospheric pressure, cooled to about -162 ° C, the gas from the state The main component of LNG is methane, with small amounts of ethane, propane and nitrogen. The natural gas is further purified during the liquefaction process, and the methane is much purer, virtually free of carbon dioxide and sulfides, and colorless, odorless, and non-toxic.

2, liquefied petroleum gas

Liquefied petroleum gas is one of the petroleum products. English name liquefied petroleum gas, short for LPG, is a colorless, volatile gas obtained by pressurizing, cooling and liquefying refinery gas or natural gas (including oilfield associated gas).

Liquefied petroleum gas (LPG) is a kind of petroleum gas left in the process of refining gasoline, kerosene, diesel oil, heavy oil and other oils. Through certain procedures, the petroleum gas is recycled and utilized, and measures are taken to pressurize the gas, so that it is turned into a liquid and loaded into pressurized containers, and the name of liquefied petroleum gas is thus derived.

3, liquefied coalbed methane

China is the world's largest coal producer, coalbed methane corresponding reserves are also very large, the reserves and natural gas is basically the same. Its basic component is methane. In addition to being a cheap chemical raw material, it is mainly used as a fuel, which is not only used as a living fuel for residents, but also used as a fuel for cars, ships, airplanes and other means of transportation. Due to the high calorific value of coalbed methane, the combustion products are less polluting to the environment, and it is considered to be a high-quality clean fuel.

People's Daily Online - Gas power has obvious advantages in replacing coal power

Baidu Encyclopedia - Natural gas (gas)