METHODS FOR TREATING FURNACE OFFGAS

摘要

A method is provided for separating hydrogen sulfide and carbon dioxide from an offgas stream from a direct reduced iron furnace. The offgas is directed to a separation device which will separate the carbon dioxide and hydrogen sulfide using a hydrogen sulfide absorber and a carbon dioxide absorber. The hydrogen sulfide can be recycled for reuse in the furnace and the carbon dioxide recovered for other additional uses.

主权项

1. A method for operating a direct reduced iron furnace wherein synthesis gas and hydrogen sulfide are fed to the direct reduced iron furnace, the improvement comprising separating carbon dioxide and hydrogen sulfide from offgas from the direct reduced iron furnace.