High temperature oxygen production for ironmaking processes

Details High temperature oxygen production for ironmaking processes High temperature oxygen production for ironmaking processes

1995-04-06

1997-07-01

Andrews, Melvyn

Specialized metallurgical processes, compositions for use therei

Processes

Producing or treating free metal

75492, 75505, 75958, C21B 1100

Patent

active

056433549

ABSTRACT:
A direct ironmaking process in which coal and oxygen are used directly for reducing ore and smelting the resulting sponge iron wherein a high-temperature ion transport membrane process recovers oxygen for use in the ironmaking process. Heat for oxygen recovery is provided by combustion of medium-BTU fuel gas generated by the ironmaking process and/or by heat exchange with hot gas provided by the ironmaking process. The ironmaking and oxygen recovery processes can be integrated with a combined cycle power generation system to provide an efficient method for the production of iron, oxygen, and electric power.

REFERENCES:
patent: 4345939 (1982-08-01), Ratschat
patent: 4545787 (1985-10-01), Hegarty
patent: 5035727 (1991-07-01), Chen
patent: 5118395 (1992-06-01), Chen et al.
patent: 5174866 (1992-12-01), Chen et al.
patent: 5245110 (1993-09-01), Van Dijk et al.
Lemperle, M., Siuka, D., "Cogeneration with COREX.RTM."--AISE Annual Convention, Pittsburgh, PA, Sep. 1991.
Wright, J. D., Copeland, R. J., "Advanced Oxygen Separation Membranes", Report No. TDA-GRI-90/0303, prepared for the Gas Research Institute, Sep. 1990.
Clark, D. J. et al, "Separation of Oxygen by Using Zirconia Solid Electrolyte Membranes" in Gas Separation and Purification 1992, vol. 6, No. 4, pp. 201-205.
Dharmadhikari, S., "Understanding Gas Turbine Cycles" in The Chemical Engineer, 28 Jan. 1993, pp. 17-20.

Affiliated with

Also associated with

Rating

High temperature oxygen production for ironmaking processes does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with High temperature oxygen production for ironmaking processes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High temperature oxygen production for ironmaking processes will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-593351