Soda Ash and Bicarbonate from a Low Energy Natural Gas Sweetening Process

Using an energy-efficient natural gas purification process, New Sky’s project will convert CO₂ and hydrogen sulphide (H₂S) contaminants from sour gas into valuable commodity chemicals, including soda ash, bicarbonate, and sulphur. The process uses a non-toxic, water-soluble base to capture CO₂ and H₂S, leaving pure natural gas for use as a low-carbon fuel. Instead of venting the CO₂ from sour natural gas into the atmosphere, New Sky’s process would put that CO₂ to use as carbonates to manufacture glass, paper, and dozens of other common products.

New Sky’s gas sweetening technology efficiently scrubs both CO₂ and H₂S from sour natural gas, and uses the inherent chemical energy of H₂S to regenerate the capture agent at very low energy cost. The net result is three useful, low carbon products:  sweet natural gas, sulphur, and carbonates such as soda ash and bicarbonate.