Natural gas is often associated with oil and pushes oil out of the soil into extraction wells. As the oil-gas mixture rises in the wells, gas is released and carries the mixture to the top of the well. In oils which are not saturated with gas and are only under water pressure, the amount of dissolved gas is less and in supersaturated oils, the amount of gas is higher. There are also streams which contain only Natural gas and no oil. The term synthetic gas refers to the gas mixtures which contain Co and H2 in different proportions. H2 and Co are two important substances in the chemical industry and have many uses. Co is used in the production of paints, plastics, foams, insecticides, herbicides, acids, etc., including the use of hydrogen, ammonia production, hydrogenation, and hydrocracking. Synthesis gas is a very valuable raw material for the production of various chemical substances. Using this gas and various processes, it is possible to produce many different chemical substances which depending on the production method, different ratios of hydrogen to Co are obtained. Likewise in industrial use, different ratios are required depending on the process in which the gas is used. Synthetic gas feeds can be hydrocarbons, coal, oil, Natural gas, and then vegetable and animal products.