Use of oxygen from ion transport membranes in blast furnace

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United States of America Patent

PATENT NO 9044704
APP PUB NO 20130341839A1
SERIAL NO

13529835

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Abstract

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The present invention is a method of integrating oxygen production with blast furnace operation. A heated air stream is introduced to an ion transfer membrane separator, producing a permeate and a retentate. The permeate and the motive stream are introduced into an ejector jet pump producing an oxygen enriched stream. The oxygen enriched stream is introduced into blast furnace. In another embodiment of the present invention, the permeate and a steam motive stream are introduced into an ejector jet pump. Heated air inlet stream is introduced into a cascading series of ion transfer membrane separators, producing a series of permeate streams and a series of retentate streams wherein each retentate stream acts as the input stream for the subsequent ion transfer membrane separator. Thereby producing a series of oxygen enriched streams which are combined and introduced into blast furnace.

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Patent Owner(s)

Patent OwnerAddress
AMERICAN AIR LIQUIDE INC200 GBC DRIVE NEWARK DE 19702

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Grant, Michael Garry Keith Versailles, FR 2 2
Grover, Bhadra S Sugar Land, US 49 336
Huang, Wei Newark, US 1002 7727
Kaiser, Kenneth Bear, US 7 21

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