Gas and Natural gas, what is the difference between them?

As the saying goes: open the door to seven things, firewood, rice, oil, salt, soy sauce, vinegar, and tea. As times change, the term firewood has become more and more unfamiliar to many friends who grew up in the city, the rural cook stove no longer exists, replaced by a variety of gas stoves and appliances. So what is the gas burning in the gas stove in the end? What is the difference between the gas, gas, and natural gas that we usually hear about?

First of all, gas does not represent a gas alone, but is a general term for gaseous fuels, so gas, and natural gas are counted as a kind of gas. Today we will mainly introduce the three gases: gas, natural gas, and LPG.

First of all, let's clarify a misunderstanding on the name, some people often refer to natural gas or LPG as "gas", such as the name of gas cans, gas stoves, etc. This is incorrect. This is incorrect because now there is no longer gas for domestic use. We will introduce it later.

Gas

Gas is a combustible gas made from coal, which generally consists of hydrogen, carbon monoxide, methane, ethylene, and volatile hydrocarbons, as well as small amounts of carbon dioxide and nitrogen. It can be obtained by carbonation and classification, such as air gas, coke oven gas, etc.

It was first created as an accessory to the coal-coking process and developed with the industrial revolution and urbanization. Depending on the purpose of the plant, the desired product is either high-quality coke for metallurgy, with gas as a by-product, or the production of high-quality gas, with coke as a by-product. Coke plants are usually associated with metallurgical facilities such as smelters, while gas from gas plants usually serves urban areas for lighting and cooking.

Gas lamps should be new to many people, although they were once used on a large scale before the popularity of electric lighting. At first, they were only used as street lights because they were unsafe. Today in Hong Kong Dud dell Street, there are still 4 gas lamps left behind in the past, and now it has become a hitting place for couples.

People are more familiar with gas, probably for cooking. But in fact, gas has been used in the city for a very short time, because there is a better gas alternative, natural gas. Compared to natural gas, gas has many inferiority

Low calorific value, gas is about 4000kcal/m^3, while natural gas is about 8500kcal/m^3 and LPG tops out at about 24000kcal/m^3.

The composition of gas contains carbon monoxide, which can cause carbon monoxide poisoning in people. Compared to natural gas gas is not a clean fuel and its production cost is also higher, so when natural gas became popular and developed, gas gradually disappeared from urban applications.

Only about nine cities in the new China, opened town gas, later also all gradually rectified to natural gas.

Natural Gas

Also known as a fossil gas, it is a naturally occurring hydrocarbon consisting primarily of methane, but also other types of alkalies and sometimes small amounts of carbon dioxide, nitrogen, hydrogen sulfide, or helium. It is a fossil fuel that is used for heating, cooking, and electricity generation, among other things.

In the beginning, natural gas was mainly a byproduct obtained when oil was extracted from the ground and decompressed, accompanied by a spill of natural gas, similar to the carbon dioxide that gushes out when you open a carbonated beverage.

At the beginning of the 20th century, most of the natural gas associated with oil fields was simply released or flared until the problems of storing and transporting it were solved. It was not until later that natural gas transportation pipelines were built that natural gas was used efficiently. Because natural gas transportation pipelines are relatively expensive, the construction of pipelines to transport natural gas requires consideration of economic effects. One famous project in China is the West-East Gas Transmission. It restructures the national energy industry and drives the joint development of the west, central and east. Improve people's quality of life.

In addition, natural gas not only refers to the gas in oil and gas fields, but also includes coal bed methane, which is commonly known as gas, and bio gas, which are all natural gas.

Combustible ice and natural gas

Combustible ice and natural gas are both primarily methane in composition, but they are not considered the same substance because one exists in a high-pressure crystalline form under the sea, while natural gas is gas or hydrate.

Liquefied Petroleum Gas (LPG)

LPG is a colorless, volatile liquid obtained from natural gas that has been pressurized and cooled. However, its main component is no longer methane, but propane, polypropylene, butane, butane, etc. So compared to methane, these hydrocarbons are denser and easier to liquefy under pressure.

The combustible gas contained in the gas cans still used in many homes is liquefied petroleum gas. Only the gas cans we are used to call did not change their names to LPG tanks. There are also lighters in the gas is the main component of n-butane, which also belongs to a kind of liquefied petroleum gas.

Summary

Gas energy is now more and more favored by people, it's efficient and clean and has many other advantages. The extraction technology of submarine combustible ice is an important topic of energy competition among countries today.

Energy has long been the lifeblood of the global economy, so the oil has been at the heart or root cause of wars in the Middle East. The recent conflict between Russia and Ukraine is also said to be related to the construction of an additional gas pipeline.

Finally, I only hope for world peace, clean and endless energy, and human happiness and well-being!