Carbon dioxide Manufacture

Carbon dioxide is manufactured mainly from six processes


1. As a byproduct in ammonia and hydrogen plants, where methane is converted to CO2;

2. From combustion of wood and fossil fuels;

3. As a byproduct of fermentation of sugar in the brewing of beer, whisky and other alcoholic beverages;

4. From thermal decomposition of limestone, CaCO3, in the manufacture of lime, CaO;

5. As a byproduct of sodium phosphate manufacture;

6. Directly from natural carbon dioxide springs, where it is produced by the action of acidified water on limestone or dolomite.