With our magazine this month focusing on the non-ferrous metals sector and once again adopting an African theme, we examine the African CO2 links and merchant market. In addition, we also explore in greater depth the CO2 supply in the US from ethanol projects.
CO2 in non-ferrous metals & the merchant market
The carbon dioxide (CO2) industry is a minor supplier to the metals industry at large; which is not specific to the non ferrous metals.
With respect to the metals industry at large today, perhaps the most abundant and greatest amount of industry growth is via blast cleaning with (rice) dry ice. Otherwise, over the years CO2 has been a rather common gas in welding applications, via gas mix products.
The CO2 industry, over the years, has been a minor supplier to foundries, typically in applications such as cooling silicon-based moulds, for example. Plus in some large steel mills, CO2 has played a key role as a stirring agent in large quantities.
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