1728. ------. [INTERNATIONAL HYDROGENATION PATENTS CO., LTD.] [Gases Containing Carbon Monoxide and Hydrogen From Gaseous Hydrocarbons and Steam With Added Carbon Dioxide.] Netherlands Patent 51,930, Feb. 16, 1942. Chem. Abs., vol. 41, 1947, p. 3604.

This conversion at 700° -900° results in a gas with CO : H₂ ratio 2 : 1-1 : 3, if enough CO₂ is used so that the reaction product contains at least 1/3, preferably 1/2, of the original amount of CO₂.