Domestic gas or LPG is familiar today. Without it, even the imagination of life no longer seems possible. But do you know that it is a liquefied petroleum gas / LPG? It is more popularly known as LPG and now it is also used as fuel in vehicles. It is basically a mixture of many hydrocarbon gases. It is used as a fuel in cooking, heating appliances and some vehicles in homes. LPG mainly consists of propane and butane gases. It is made from petroleum refining (crude oil crude oil) or liquid natural gas. Most fossils are made up of fuel sources. It was first produced in 1910 by Dr. Walter Snelling. It was first commercially produced in 1912. Today it is a requirement of every household and gas is in the cylinder.