Specialized metallurgical processes – compositions for use therei – Processes – Electrothermic processes
Patent
1980-04-08
1982-12-14
Rosenberg, P. D.
Specialized metallurgical processes, compositions for use therei
Processes
Electrothermic processes
75 31, 75 41, C21B 1100
Patent
active
043636543
ABSTRACT:
A process for producing a reducing gas for a direct reduction or blast furnace which comprises partially oxidizing oil and/or coal and/or coke in the presence of air to produce a gas stream containing hydrogen and nitrogen together with other gases, treating the gas stream to remove substantially all gases other than hydrogen and nitrogen, drying the gas stream if there is water present, subjecting the gas stream to a separation stage, e.g. in a cryogenic separator, to separate a hydrogen-rich gas stream and a nitrogen-rich gas stream, heating the hydrogen-rich gas stream and injecting it into the furnace.
In the case of a direct reduction furnace the gas stream may be obtained by partial oxidation of coal and/or oil. In the case of the blast furnace the reducing gas may be derived from the top gas in addition or as an alternative to partial oxidation of coal and/or oil.
REFERENCES:
patent: 2795559 (1957-06-01), Whaley
patent: 3053648 (1962-09-01), Stephens
patent: 3097082 (1963-07-01), Guptill
patent: 3442613 (1969-05-01), Grotz
patent: 3864465 (1975-02-01), Hoffert
patent: 4089798 (1978-05-01), Sugiyama
patent: 4213954 (1980-07-01), Pinto
patent: 4220469 (1980-09-01), Tippmer
patent: 4224299 (1980-09-01), Barber et al.
Dwight Anthony
Frederick Geoffrey
Kice Warren B.
Naigur Marvin A.
Rosenberg P. D.
Wilson John E.
LandOfFree
Production of reducing gas for furnace injection does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Production of reducing gas for furnace injection, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Production of reducing gas for furnace injection will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1200472