HIsarna

HIsarna™ represents a new phase in the global direct smelting development cycle. It is, in essence, a merger between Tata Steel developed smelt cyclone technology and HIsmelt (Rio Tinto)-developed bath smelting technology. 

The key driver from this perspective is efficient, cost-effective carbon dioxide collection for potential geological storage. HIsarna's inherently simple, once through gas flow path provides an easy carbon dioxide collection option without the need for a carbon dioxide scrubber. Other potential benefits include an ability to use thermal (steam) coals rather than metallurgical coals still in maintaining all other HIsmelt benefits.