Producing metal and carbon dioxide with hydrogen recycle

Details Producing metal and carbon dioxide with hydrogen recycle Producing metal and carbon dioxide with hydrogen recycle

2010-02-23

2011-11-15

Wyszomierski, George (Department: 1733)

Metallurgical apparatus

With means treating or handling gases exhausted by treating...

With heat exchanger, e.g., waste heat boiler

C266S157000, C266S197000

Reexamination Certificate

active

08057734

ABSTRACT:
Offgas containing carbon dioxide and carbon monoxide that is produced in the reduction of ores and other metal oxides in a reactor is treated to reduce its carbon dioxide content and is then contacted with metal oxide to reduce the oxidation state of the metal and oxidize carbon monoxide therein to carbon dioxide, following which the reduced metal is oxidized with steam to produce hydrogen that can be fed to the reactor.

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