CO2 is a non-flammable, odorless, and colorless gas with a mild, pungent acidic taste. For commercial purposes, it is used in the enhanced oil refinery industry, food and beverage industry, fire suppression and others. CO2 is usually obtained from the combustion of petroleum distillates, natural gas, carbon-containing compounds, coal, and other organic materials. The market size is based on the revenues generated by key participants.